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experiences.\",\"homepage\":\"https://aframe.io/\",\"main\":\"dist/aframe-master.js\",\"scripts\":{\"browserify\":\"browserify src/index.js -s 'AFRAME' -p browserify-derequire\",\"build\":\"shx mkdir -p build/ && npm run browserify -- --debug -t [envify --INSPECTOR_VERSION dev] -o build/aframe.js\",\"codecov\":\"codecov\",\"dev\":\"npm run build && cross-env INSPECTOR_VERSION=dev node ./scripts/budo -t envify\",\"dist\":\"node scripts/updateVersionLog.js && npm run dist:min && npm run dist:max\",\"dist:max\":\"npm run browserify -s -- --debug | exorcist dist/aframe-master.js.map > dist/aframe-master.js\",\"dist:min\":\"npm run browserify -s -- --debug -p [minifyify --map aframe-master.min.js.map --output dist/aframe-master.min.js.map] -o dist/aframe-master.min.js\",\"docs\":\"markserv --dir docs --port 9001\",\"preghpages\":\"node ./scripts/preghpages.js\",\"ghpages\":\"ghpages -p gh-pages/\",\"lint\":\"semistandard -v | snazzy\",\"lint:fix\":\"semistandard --fix\",\"precommit\":\"npm 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a:hover{background-color:#fff;color:#111;padding:2px 4px;position:relative;left:-4px}.a-enter-vr{font-family:sans-serif,monospace;font-size:13px;width:100%;font-weight:200;line-height:16px;position:absolute;right:20px;bottom:20px}.a-enter-vr.embedded{right:5px;bottom:5px}.a-enter-vr-button,.a-enter-vr-modal,.a-enter-vr-modal 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color;\",\"\\t}\",\"}\"].join(\"\\n\")},p=c(u),d={vertex:e.getAttribLocation(p,\"position\"),uv:e.getAttribLocation(p,\"uv\")},f={renderType:e.getUniformLocation(p,\"renderType\"),map:e.getUniformLocation(p,\"map\"),occlusionMap:e.getUniformLocation(p,\"occlusionMap\"),opacity:e.getUniformLocation(p,\"opacity\"),color:e.getUniformLocation(p,\"color\"),scale:e.getUniformLocation(p,\"scale\"),rotation:e.getUniformLocation(p,\"rotation\"),screenPosition:e.getUniformLocation(p,\"screenPosition\")}}function c(t){var i=e.createProgram(),n=e.createShader(e.FRAGMENT_SHADER),r=e.createShader(e.VERTEX_SHADER),a=\"precision \"+o.precision+\" float;\\n\";return e.shaderSource(n,a+t.fragmentShader),e.shaderSource(r,a+t.vertexShader),e.compileShader(n),e.compileShader(r),e.attachShader(i,n),e.attachShader(i,r),e.linkProgram(i),i}var h,l,u,p,d,f,m,g;this.render=function(t,o,c,u){if(0!==t.length){var v=new a,y=u.w/u.z,x=.5*u.z,b=.5*u.w,_=16/u.w,w=new i(_*y,_),M=new a(1,1,0),E=new i(1,1),T=new Y;T.min.set(u.x,u.y),T.max.set(u.x+(u.z-16),u.y+(u.w-16)),void 0===p&&s(),n.useProgram(p),n.initAttributes(),n.enableAttribute(d.vertex),n.enableAttribute(d.uv),n.disableUnusedAttributes(),e.uniform1i(f.occlusionMap,0),e.uniform1i(f.map,1),e.bindBuffer(e.ARRAY_BUFFER,h),e.vertexAttribPointer(d.vertex,2,e.FLOAT,!1,16,0),e.vertexAttribPointer(d.uv,2,e.FLOAT,!1,16,8),e.bindBuffer(e.ELEMENT_ARRAY_BUFFER,l),n.disable(e.CULL_FACE),n.buffers.depth.setMask(!1);for(var S=0,A=t.length;S<A;S++){_=16/u.w,w.set(_*y,_);var R=t[S];if(v.set(R.matrixWorld.elements[12],R.matrixWorld.elements[13],R.matrixWorld.elements[14]),v.applyMatrix4(c.matrixWorldInverse),v.applyMatrix4(c.projectionMatrix),M.copy(v),E.x=u.x+M.x*x+x-8,E.y=u.y+M.y*b+b-8,!0===T.containsPoint(E)){n.activeTexture(e.TEXTURE0),n.bindTexture(e.TEXTURE_2D,null),n.activeTexture(e.TEXTURE1),n.bindTexture(e.TEXTURE_2D,m),e.copyTexImage2D(e.TEXTURE_2D,0,e.RGB,E.x,E.y,16,16,0),e.uniform1i(f.renderType,0),e.uniform2f(f.scale,w.x,w.y),e.uniform3f(f.screenPosition,M.x,M.y,M.z),n.disable(e.BLEND),n.enable(e.DEPTH_TEST),e.drawElements(e.TRIANGLES,6,e.UNSIGNED_SHORT,0),n.activeTexture(e.TEXTURE0),n.bindTexture(e.TEXTURE_2D,g),e.copyTexImage2D(e.TEXTURE_2D,0,e.RGBA,E.x,E.y,16,16,0),e.uniform1i(f.renderType,1),n.disable(e.DEPTH_TEST),n.activeTexture(e.TEXTURE1),n.bindTexture(e.TEXTURE_2D,m),e.drawElements(e.TRIANGLES,6,e.UNSIGNED_SHORT,0),R.positionScreen.copy(M),R.customUpdateCallback?R.customUpdateCallback(R):R.updateLensFlares(),e.uniform1i(f.renderType,2),n.enable(e.BLEND);for(var L=0,P=R.lensFlares.length;L<P;L++){var C=R.lensFlares[L];C.opacity>.001&&C.scale>.001&&(M.x=C.x,M.y=C.y,M.z=C.z,_=C.size*C.scale/u.w,w.x=_*y,w.y=_,e.uniform3f(f.screenPosition,M.x,M.y,M.z),e.uniform2f(f.scale,w.x,w.y),e.uniform1f(f.rotation,C.rotation),e.uniform1f(f.opacity,C.opacity),e.uniform3f(f.color,C.color.r,C.color.g,C.color.b),n.setBlending(C.blending,C.blendEquation,C.blendSrc,C.blendDst),r.setTexture2D(C.texture,1),e.drawElements(e.TRIANGLES,6,e.UNSIGNED_SHORT,0))}}}n.enable(e.CULL_FACE),n.enable(e.DEPTH_TEST),n.buffers.depth.setMask(!0),n.reset()}}}function J(t,e,i,n,r,a,o,c,h){s.call(this,t,e,i,n,r,a,o,c,h),this.needsUpdate=!0}function Q(t,e,i,n,o){function s(){var t=new Float32Array([-.5,-.5,0,0,.5,-.5,1,0,.5,.5,1,1,-.5,.5,0,1]),i=new Uint16Array([0,1,2,0,2,3]);l=e.createBuffer(),u=e.createBuffer(),e.bindBuffer(e.ARRAY_BUFFER,l),e.bufferData(e.ARRAY_BUFFER,t,e.STATIC_DRAW),e.bindBuffer(e.ELEMENT_ARRAY_BUFFER,u),e.bufferData(e.ELEMENT_ARRAY_BUFFER,i,e.STATIC_DRAW),p=c(),d={position:e.getAttribLocation(p,\"position\"),uv:e.getAttribLocation(p,\"uv\")},f={uvOffset:e.getUniformLocation(p,\"uvOffset\"),uvScale:e.getUniformLocation(p,\"uvScale\"),rotation:e.getUniformLocation(p,\"rotation\"),scale:e.getUniformLocation(p,\"scale\"),color:e.getUniformLocation(p,\"color\"),map:e.getUniformLocation(p,\"map\"),opacity:e.getUniformLocation(p,\"opacity\"),modelViewMatrix:e.getUniformLocation(p,\"modelViewMatrix\"),projectionMatrix:e.getUniformLocation(p,\"projectionMatrix\"),fogType:e.getUniformLocation(p,\"fogType\"),fogDensity:e.getUniformLocation(p,\"fogDensity\"),fogNear:e.getUniformLocation(p,\"fogNear\"),fogFar:e.getUniformLocation(p,\"fogFar\"),fogColor:e.getUniformLocation(p,\"fogColor\"),fogDepth:e.getUniformLocation(p,\"fogDepth\"),alphaTest:e.getUniformLocation(p,\"alphaTest\")};var n=document.createElementNS(\"http://www.w3.org/1999/xhtml\",\"canvas\");n.width=8,n.height=8;var r=n.getContext(\"2d\");r.fillStyle=\"white\",r.fillRect(0,0,8,8),m=new J(n)}function c(){var t=e.createProgram(),i=e.createShader(e.VERTEX_SHADER),n=e.createShader(e.FRAGMENT_SHADER);return e.shaderSource(i,[\"precision \"+o.precision+\" float;\",\"#define SHADER_NAME SpriteMaterial\",\"uniform mat4 modelViewMatrix;\",\"uniform mat4 projectionMatrix;\",\"uniform float rotation;\",\"uniform vec2 scale;\",\"uniform vec2 uvOffset;\",\"uniform vec2 uvScale;\",\"attribute vec2 position;\",\"attribute vec2 uv;\",\"varying vec2 vUV;\",\"varying float fogDepth;\",\"void main() {\",\"\\tvUV = uvOffset + uv * uvScale;\",\"\\tvec2 alignedPosition = position * scale;\",\"\\tvec2 rotatedPosition;\",\"\\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\",\"\\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\",\"\\tvec4 mvPosition;\",\"\\tmvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );\",\"\\tmvPosition.xy += rotatedPosition;\",\"\\tgl_Position = projectionMatrix * mvPosition;\",\"\\tfogDepth = - mvPosition.z;\",\"}\"].join(\"\\n\")),e.shaderSource(n,[\"precision \"+o.precision+\" float;\",\"#define SHADER_NAME SpriteMaterial\",\"uniform vec3 color;\",\"uniform sampler2D map;\",\"uniform float opacity;\",\"uniform int fogType;\",\"uniform vec3 fogColor;\",\"uniform float fogDensity;\",\"uniform float fogNear;\",\"uniform float fogFar;\",\"uniform float alphaTest;\",\"varying vec2 vUV;\",\"varying float fogDepth;\",\"void main() {\",\"\\tvec4 texture = texture2D( map, vUV );\",\"\\tgl_FragColor = vec4( color * texture.xyz, texture.a * opacity );\",\"\\tif ( gl_FragColor.a < alphaTest ) discard;\",\"\\tif ( fogType > 0 ) {\",\"\\t\\tfloat fogFactor = 0.0;\",\"\\t\\tif ( fogType == 1 ) {\",\"\\t\\t\\tfogFactor = smoothstep( fogNear, fogFar, fogDepth );\",\"\\t\\t} else {\",\"\\t\\t\\tconst float LOG2 = 1.442695;\",\"\\t\\t\\tfogFactor = exp2( - fogDensity * fogDensity * fogDepth * fogDepth * LOG2 );\",\"\\t\\t\\tfogFactor = 1.0 - clamp( fogFactor, 0.0, 1.0 );\",\"\\t\\t}\",\"\\t\\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\",\"\\t}\",\"}\"].join(\"\\n\")),e.compileShader(i),e.compileShader(n),e.attachShader(t,i),e.attachShader(t,n),e.linkProgram(t),t}function h(t,e){return t.renderOrder!==e.renderOrder?t.renderOrder-e.renderOrder:t.z!==e.z?e.z-t.z:e.id-t.id}var l,u,p,d,f,m,g=new a,v=new r,y=new a;this.render=function(r,a,o){if(0!==r.length){void 0===p&&s(),i.useProgram(p),i.initAttributes(),i.enableAttribute(d.position),i.enableAttribute(d.uv),i.disableUnusedAttributes(),i.disable(e.CULL_FACE),i.enable(e.BLEND),e.bindBuffer(e.ARRAY_BUFFER,l),e.vertexAttribPointer(d.position,2,e.FLOAT,!1,16,0),e.vertexAttribPointer(d.uv,2,e.FLOAT,!1,16,8),e.bindBuffer(e.ELEMENT_ARRAY_BUFFER,u),e.uniformMatrix4fv(f.projectionMatrix,!1,o.projectionMatrix.elements),i.activeTexture(e.TEXTURE0),e.uniform1i(f.map,0);var c=0,x=0,b=a.fog;b?(e.uniform3f(f.fogColor,b.color.r,b.color.g,b.color.b),b.isFog?(e.uniform1f(f.fogNear,b.near),e.uniform1f(f.fogFar,b.far),e.uniform1i(f.fogType,1),c=1,x=1):b.isFogExp2&&(e.uniform1f(f.fogDensity,b.density),e.uniform1i(f.fogType,2),c=2,x=2)):(e.uniform1i(f.fogType,0),c=0,x=0);for(var _=0,w=r.length;_<w;_++){var M=r[_];M.modelViewMatrix.multiplyMatrices(o.matrixWorldInverse,M.matrixWorld),M.z=-M.modelViewMatrix.elements[14]}r.sort(h);for(var E=[],_=0,w=r.length;_<w;_++){var M=r[_],T=M.material;if(!1!==T.visible){M.onBeforeRender(t,a,o,void 0,T,void 0),e.uniform1f(f.alphaTest,T.alphaTest),e.uniformMatrix4fv(f.modelViewMatrix,!1,M.modelViewMatrix.elements),M.matrixWorld.decompose(g,v,y),E[0]=y.x,E[1]=y.y;var S=0;a.fog&&T.fog&&(S=x),c!==S&&(e.uniform1i(f.fogType,S),c=S),null!==T.map?(e.uniform2f(f.uvOffset,T.map.offset.x,T.map.offset.y),e.uniform2f(f.uvScale,T.map.repeat.x,T.map.repeat.y)):(e.uniform2f(f.uvOffset,0,0),e.uniform2f(f.uvScale,1,1)),e.uniform1f(f.opacity,T.opacity),e.uniform3f(f.color,T.color.r,T.color.g,T.color.b),e.uniform1f(f.rotation,T.rotation),e.uniform2fv(f.scale,E),i.setBlending(T.blending,T.blendEquation,T.blendSrc,T.blendDst,T.blendEquationAlpha,T.blendSrcAlpha,T.blendDstAlpha,T.premultipliedAlpha),i.buffers.depth.setTest(T.depthTest),i.buffers.depth.setMask(T.depthWrite),i.buffers.color.setMask(T.colorWrite),n.setTexture2D(T.map||m,0),e.drawElements(e.TRIANGLES,6,e.UNSIGNED_SHORT,0),M.onAfterRender(t,a,o,void 0,T,void 0)}}i.enable(e.CULL_FACE),i.reset()}}}function K(){Object.defineProperty(this,\"id\",{value:Ls++}),this.uuid=ms.generateUUID(),this.name=\"\",this.type=\"Material\",this.fog=!0,this.lights=!0,this.blending=Sa,this.side=xa,this.flatShading=!1,this.vertexColors=wa,this.opacity=1,this.transparent=!1,this.blendSrc=Ga,this.blendDst=Ha,this.blendEquation=Ca,this.blendSrcAlpha=null,this.blendDstAlpha=null,this.blendEquationAlpha=null,this.depthFunc=Ja,this.depthTest=!0,this.depthWrite=!0,this.clippingPlanes=null,this.clipIntersection=!1,this.clipShadows=!1,this.colorWrite=!0,this.precision=null,this.polygonOffset=!1,this.polygonOffsetFactor=0,this.polygonOffsetUnits=0,this.dithering=!1,this.alphaTest=0,this.premultipliedAlpha=!1,this.overdraw=0,this.visible=!0,this.userData={},this.needsUpdate=!0}function $(t){K.call(this),this.type=\"MeshDepthMaterial\",this.depthPacking=ds,this.skinning=!1,this.morphTargets=!1,this.map=null,this.alphaMap=null,this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.lights=!1,this.setValues(t)}function tt(t){K.call(this),this.type=\"MeshDistanceMaterial\",this.referencePosition=new a,this.nearDistance=1,this.farDistance=1e3,this.skinning=!1,this.morphTargets=!1,this.map=null,this.alphaMap=null,this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.fog=!1,this.lights=!1,this.setValues(t)}function et(t,e){this.min=void 0!==t?t:new a(1/0,1/0,1/0),this.max=void 0!==e?e:new a(-1/0,-1/0,-1/0)}function it(t,e){this.center=void 0!==t?t:new a,this.radius=void 0!==e?e:0}function nt(t,e){this.normal=void 0!==t?t:new a(1,0,0),this.constant=void 0!==e?e:0}function rt(t,e,i,n,r,a){this.planes=[void 0!==t?t:new nt,void 0!==e?e:new nt,void 0!==i?i:new nt,void 0!==n?n:new nt,void 0!==r?r:new nt,void 0!==a?a:new nt]}function at(t,e,r){function o(e,i,n,r,a,o){var s=e.geometry,c=null,h=x,l=e.customDepthMaterial;if(n&&(h=b,l=e.customDistanceMaterial),l)c=l;else{var u=!1;i.morphTargets&&(s&&s.isBufferGeometry?u=s.morphAttributes&&s.morphAttributes.position&&s.morphAttributes.position.length>0:s&&s.isGeometry&&(u=s.morphTargets&&s.morphTargets.length>0)),e.isSkinnedMesh&&!1===i.skinning&&console.warn(\"THREE.WebGLShadowMap: THREE.SkinnedMesh with material.skinning set to false:\",e);var p=e.isSkinnedMesh&&i.skinning,d=0;u&&(d|=g),p&&(d|=v),c=h[d]}if(t.localClippingEnabled&&!0===i.clipShadows&&0!==i.clippingPlanes.length){var f=c.uuid,m=i.uuid,y=_[f];void 0===y&&(y={},_[f]=y);var w=y[m];void 0===w&&(w=c.clone(),y[m]=w),c=w}c.visible=i.visible,c.wireframe=i.wireframe;var M=i.side;return P.renderSingleSided&&M==_a&&(M=xa),P.renderReverseSided&&(M===xa?M=ba:M===ba&&(M=xa)),c.side=M,c.clipShadows=i.clipShadows,c.clippingPlanes=i.clippingPlanes,c.clipIntersection=i.clipIntersection,c.wireframeLinewidth=i.wireframeLinewidth,c.linewidth=i.linewidth,n&&c.isMeshDistanceMaterial&&(c.referencePosition.copy(r),c.nearDistance=a,c.farDistance=o),c}function s(i,n,r,a){if(!1!==i.visible){if(i.layers.test(n.layers)&&(i.isMesh||i.isLine||i.isPoints)&&i.castShadow&&(!i.frustumCulled||l.intersectsObject(i))){i.modelViewMatrix.multiplyMatrices(r.matrixWorldInverse,i.matrixWorld);var c=e.update(i),h=i.material;if(Array.isArray(h))for(var u=c.groups,p=0,d=u.length;p<d;p++){var f=u[p],g=h[f.materialIndex];if(g&&g.visible){var v=o(i,g,a,m,r.near,r.far);t.renderBufferDirect(r,null,c,v,i,f)}}else if(h.visible){var v=o(i,h,a,m,r.near,r.far);t.renderBufferDirect(r,null,c,v,i,null)}}for(var y=i.children,x=0,b=y.length;x<b;x++)s(y[x],n,r,a)}}for(var l=new rt,u=new n,p=new i,d=new i(r,r),f=new a,m=new a,g=1,v=2,y=1+(g|v),x=new Array(y),b=new Array(y),_={},w=[new a(1,0,0),new a(-1,0,0),new a(0,0,1),new a(0,0,-1),new a(0,1,0),new a(0,-1,0)],M=[new a(0,1,0),new a(0,1,0),new a(0,1,0),new a(0,1,0),new a(0,0,1),new a(0,0,-1)],E=[new c,new c,new c,new c,new c,new c],T=0;T!==y;++T){var S=0!=(T&g),A=0!=(T&v),R=new $({depthPacking:fs,morphTargets:S,skinning:A});x[T]=R;var L=new tt({morphTargets:S,skinning:A});b[T]=L}var P=this;this.enabled=!1,this.autoUpdate=!0,this.needsUpdate=!1,this.type=va,this.renderReverseSided=!0,this.renderSingleSided=!0,this.render=function(e,i,n){if(!1!==P.enabled&&(!1!==P.autoUpdate||!1!==P.needsUpdate)&&0!==e.length){var r=t.context,a=t.state;a.disable(r.BLEND),a.buffers.color.setClear(1,1,1,1),a.buffers.depth.setTest(!0),a.setScissorTest(!1);for(var o,c=0,g=e.length;c<g;c++){var v=e[c],y=v.shadow,x=v&&v.isPointLight;if(void 0!==y){var b=y.camera;if(p.copy(y.mapSize),p.min(d),x){var _=p.x,T=p.y;E[0].set(2*_,T,_,T),E[1].set(0,T,_,T),E[2].set(3*_,T,_,T),E[3].set(_,T,_,T),E[4].set(3*_,0,_,T),E[5].set(_,0,_,T),p.x*=4,p.y*=2}if(null===y.map){var S={minFilter:bo,magFilter:bo,format:Go};y.map=new h(p.x,p.y,S),y.map.texture.name=v.name+\".shadowMap\",b.updateProjectionMatrix()}y.isSpotLightShadow&&y.update(v);var A=y.map,R=y.matrix;m.setFromMatrixPosition(v.matrixWorld),b.position.copy(m),x?(o=6,R.makeTranslation(-m.x,-m.y,-m.z)):(o=1,f.setFromMatrixPosition(v.target.matrixWorld),b.lookAt(f),b.updateMatrixWorld(),R.set(.5,0,0,.5,0,.5,0,.5,0,0,.5,.5,0,0,0,1),R.multiply(b.projectionMatrix),R.multiply(b.matrixWorldInverse)),t.setRenderTarget(A),t.clear();for(var L=0;L<o;L++){if(x){f.copy(b.position),f.add(w[L]),b.up.copy(M[L]),b.lookAt(f),b.updateMatrixWorld();var C=E[L];a.viewport(C)}u.multiplyMatrices(b.projectionMatrix,b.matrixWorldInverse),l.setFromMatrix(u),s(i,n,b,x)}}else console.warn(\"THREE.WebGLShadowMap:\",v,\"has no shadow.\")}P.needsUpdate=!1}}}function ot(t){function e(e,i){var n=e.array,r=e.dynamic?t.DYNAMIC_DRAW:t.STATIC_DRAW,a=t.createBuffer();t.bindBuffer(i,a),t.bufferData(i,n,r),e.onUploadCallback();var o=t.FLOAT;return n instanceof Float32Array?o=t.FLOAT:n instanceof Float64Array?console.warn(\"THREE.WebGLAttributes: Unsupported data buffer format: Float64Array.\"):n instanceof Uint16Array?o=t.UNSIGNED_SHORT:n instanceof Int16Array?o=t.SHORT:n instanceof Uint32Array?o=t.UNSIGNED_INT:n instanceof Int32Array?o=t.INT:n instanceof Int8Array?o=t.BYTE:n instanceof Uint8Array&&(o=t.UNSIGNED_BYTE),{buffer:a,type:o,bytesPerElement:n.BYTES_PER_ELEMENT,version:e.version}}function i(e,i,n){var r=i.array,a=i.updateRange;t.bindBuffer(n,e),!1===i.dynamic?t.bufferData(n,r,t.STATIC_DRAW):-1===a.count?t.bufferSubData(n,0,r):0===a.count?console.error(\"THREE.WebGLObjects.updateBuffer: dynamic THREE.BufferAttribute marked as needsUpdate but updateRange.count is 0, ensure you are using set methods or updating manually.\"):(t.bufferSubData(n,a.offset*r.BYTES_PER_ELEMENT,r.subarray(a.offset,a.offset+a.count)),a.count=-1)}function n(t){return t.isInterleavedBufferAttribute&&(t=t.data),o[t.uuid]}function r(e){e.isInterleavedBufferAttribute&&(e=e.data);var i=o[e.uuid];i&&(t.deleteBuffer(i.buffer),delete o[e.uuid])}function a(t,n){t.isInterleavedBufferAttribute&&(t=t.data);var r=o[t.uuid];void 0===r?o[t.uuid]=e(t,n):r.version<t.version&&(i(r.buffer,t,n),r.version=t.version)}var o={};return{get:n,remove:r,update:a}}function st(t,e,i,n){this._x=t||0,this._y=e||0,this._z=i||0,this._order=n||st.DefaultOrder}function ct(){this.mask=1}function ht(){function t(){c.setFromEuler(s,!1)}function e(){s.setFromQuaternion(c,void 0,!1)}Object.defineProperty(this,\"id\",{value:Ps++}),this.uuid=ms.generateUUID(),this.name=\"\",this.type=\"Object3D\",this.parent=null,this.children=[],this.up=ht.DefaultUp.clone();var i=new a,s=new st,c=new r,h=new 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n=t.id+\",\"+e.id,r=i[n];return void 0===r&&(r=new Gt,i[n]=r),r}function e(){i={}}var i={};return{get:t,dispose:e}}function Vt(t,e){return Math.abs(e[1])-Math.abs(t[1])}function kt(t){function e(e,r,a,o){var s=e.morphTargetInfluences,c=s.length,h=i[r.id];if(void 0===h){h=[];for(var l=0;l<c;l++)h[l]=[l,0];i[r.id]=h}for(var u=a.morphTargets&&r.morphAttributes.position,p=a.morphNormals&&r.morphAttributes.normal,l=0;l<c;l++){var d=h[l];0!==d[1]&&(u&&r.removeAttribute(\"morphTarget\"+l),p&&r.removeAttribute(\"morphNormal\"+l))}for(var l=0;l<c;l++){var d=h[l];d[0]=l,d[1]=s[l]}h.sort(Vt);for(var l=0;l<8;l++){var d=h[l];if(d){var f=d[0],m=d[1];if(m){u&&r.addAttribute(\"morphTarget\"+l,u[f]),p&&r.addAttribute(\"morphNormal\"+l,p[f]),n[l]=m;continue}}n[l]=0}o.getUniforms().setValue(t,\"morphTargetInfluences\",n)}var i={},n=new Float32Array(8);return{update:e}}function jt(t,e,i){function n(t){s=t}function r(t){c=t.type,h=t.bytesPerElement}function a(e,n){t.drawElements(s,n,c,e*h),i.calls++,i.vertices+=n,s===t.TRIANGLES?i.faces+=n/3:s===t.POINTS&&(i.points+=n)}function o(n,r,a){var o=e.get(\"ANGLE_instanced_arrays\");if(null===o)return void console.error(\"THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.\");o.drawElementsInstancedANGLE(s,a,c,r*h,n.maxInstancedCount),i.calls++,i.vertices+=a*n.maxInstancedCount,s===t.TRIANGLES?i.faces+=n.maxInstancedCount*a/3:s===t.POINTS&&(i.points+=n.maxInstancedCount*a)}var s,c,h;this.setMode=n,this.setIndex=r,this.render=a,this.renderInstances=o}function Wt(t,e,i){function n(t){o=t}function r(e,n){t.drawArrays(o,e,n),i.calls++,i.vertices+=n,o===t.TRIANGLES?i.faces+=n/3:o===t.POINTS&&(i.points+=n)}function a(n,r,a){var s=e.get(\"ANGLE_instanced_arrays\");if(null===s)return void console.error(\"THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension 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n=i.index,r=i.attributes;null!==n&&e.update(n,t.ELEMENT_ARRAY_BUFFER);for(var a in r)e.update(r[a],t.ARRAY_BUFFER);var o=i.morphAttributes;for(var a in o)for(var s=o[a],c=0,h=s.length;c<h;c++)e.update(s[c],t.ARRAY_BUFFER)}function o(i){var n=c[i.id];if(n)return n;var r=[],a=i.index,o=i.attributes;if(null!==a)for(var s=a.array,h=0,l=s.length;h<l;h+=3){var u=s[h+0],p=s[h+1],d=s[h+2];r.push(u,p,p,d,d,u)}else for(var s=o.position.array,h=0,l=s.length/3-1;h<l;h+=3){var u=h+0,p=h+1,d=h+2;r.push(u,p,p,d,d,u)}return n=new(Tt(r)>65535?_t:xt)(r,1),e.update(n,t.ELEMENT_ARRAY_BUFFER),c[i.id]=n,n}var s={},c={};return{get:r,update:a,getWireframeAttribute:o}}function qt(){var t={};return{get:function(e){if(void 0!==t[e.id])return t[e.id];var n;switch(e.type){case\"DirectionalLight\":n={direction:new a,color:new q,shadow:!1,shadowBias:0,shadowRadius:1,shadowMapSize:new i};break;case\"SpotLight\":n={position:new a,direction:new a,color:new q,distance:0,coneCos:0,penumbraCos:0,decay:0,shadow:!1,shadowBias:0,shadowRadius:1,shadowMapSize:new i};break;case\"PointLight\":n={position:new a,color:new q,distance:0,decay:0,shadow:!1,shadowBias:0,shadowRadius:1,shadowMapSize:new i,shadowCameraNear:1,shadowCameraFar:1e3};break;case\"HemisphereLight\":n={direction:new a,skyColor:new q,groundColor:new q};break;case\"RectAreaLight\":n={color:new q,position:new a,halfWidth:new a,halfHeight:new a}}return t[e.id]=n,n}}}function Yt(){function t(t,n,a){for(var c=0,h=0,l=0,u=0,p=0,d=0,f=0,m=0,g=a.matrixWorldInverse,v=0,y=t.length;v<y;v++){var x=t[v],b=x.color,_=x.intensity,w=x.distance,M=x.shadow&&x.shadow.map?x.shadow.map.texture:null;if(x.isAmbientLight)c+=b.r*_,h+=b.g*_,l+=b.b*_;else if(x.isDirectionalLight){var E=e.get(x);if(E.color.copy(x.color).multiplyScalar(x.intensity),E.direction.setFromMatrixPosition(x.matrixWorld),r.setFromMatrixPosition(x.target.matrixWorld),E.direction.sub(r),E.direction.transformDirection(g),E.shadow=x.castShadow,x.castShadow){var T=x.shadow;E.shadowBias=T.bias,E.shadowRadius=T.radius,E.shadowMapSize=T.mapSize}i.directionalShadowMap[u]=M,i.directionalShadowMatrix[u]=x.shadow.matrix,i.directional[u]=E,u++}else if(x.isSpotLight){var E=e.get(x);if(E.position.setFromMatrixPosition(x.matrixWorld),E.position.applyMatrix4(g),E.color.copy(b).multiplyScalar(_),E.distance=w,E.direction.setFromMatrixPosition(x.matrixWorld),r.setFromMatrixPosition(x.target.matrixWorld),E.direction.sub(r),E.direction.transformDirection(g),E.coneCos=Math.cos(x.angle),E.penumbraCos=Math.cos(x.angle*(1-x.penumbra)),E.decay=0===x.distance?0:x.decay,E.shadow=x.castShadow,x.castShadow){var T=x.shadow;E.shadowBias=T.bias,E.shadowRadius=T.radius,E.shadowMapSize=T.mapSize}i.spotShadowMap[d]=M,i.spotShadowMatrix[d]=x.shadow.matrix,i.spot[d]=E,d++}else if(x.isRectAreaLight){var E=e.get(x);E.color.copy(b).multiplyScalar(_/(x.width*x.height)),E.position.setFromMatrixPosition(x.matrixWorld),E.position.applyMatrix4(g),s.identity(),o.copy(x.matrixWorld),o.premultiply(g),s.extractRotation(o),E.halfWidth.set(.5*x.width,0,0),E.halfHeight.set(0,.5*x.height,0),E.halfWidth.applyMatrix4(s),E.halfHeight.applyMatrix4(s),i.rectArea[f]=E,f++}else if(x.isPointLight){var E=e.get(x);if(E.position.setFromMatrixPosition(x.matrixWorld),E.position.applyMatrix4(g),E.color.copy(x.color).multiplyScalar(x.intensity),E.distance=x.distance,E.decay=0===x.distance?0:x.decay,E.shadow=x.castShadow,x.castShadow){var T=x.shadow;E.shadowBias=T.bias,E.shadowRadius=T.radius,E.shadowMapSize=T.mapSize,E.shadowCameraNear=T.camera.near,E.shadowCameraFar=T.camera.far}i.pointShadowMap[p]=M,i.pointShadowMatrix[p]=x.shadow.matrix,i.point[p]=E,p++}else if(x.isHemisphereLight){var E=e.get(x);E.direction.setFromMatrixPosition(x.matrixWorld),E.direction.transformDirection(g),E.direction.normalize(),E.skyColor.copy(x.color).multiplyScalar(_),E.groundColor.copy(x.groundColor).multiplyScalar(_),i.hemi[m]=E,m++}}i.ambient[0]=c,i.ambient[1]=h,i.ambient[2]=l,i.directional.length=u,i.spot.length=d,i.rectArea.length=f,i.point.length=p,i.hemi.length=m,i.hash=u+\",\"+p+\",\"+d+\",\"+f+\",\"+m+\",\"+n.length}var e=new qt,i={hash:\"\",ambient:[0,0,0],directional:[],directionalShadowMap:[],directionalShadowMatrix:[],spot:[],spotShadowMap:[],spotShadowMatrix:[],rectArea:[],point:[],pointShadowMap:[],pointShadowMatrix:[],hemi:[]},r=new a,o=new n,s=new n;return{setup:t,state:i}}function Zt(t,e){function i(i){var n=e.frame,a=i.geometry,o=t.get(i,a);return r[o.id]!==n&&(a.isGeometry&&o.updateFromObject(i),t.update(o),r[o.id]=n),o}function n(){r={}}var r={};return{update:i,clear:n}}function Jt(t){for(var e=t.split(\"\\n\"),i=0;i<e.length;i++)e[i]=i+1+\": \"+e[i];return e.join(\"\\n\")}function Qt(t,e,i){var n=t.createShader(e);return t.shaderSource(n,i),t.compileShader(n),!1===t.getShaderParameter(n,t.COMPILE_STATUS)&&console.error(\"THREE.WebGLShader: Shader couldn't compile.\"),\"\"!==t.getShaderInfoLog(n)&&console.warn(\"THREE.WebGLShader: gl.getShaderInfoLog()\",e===t.VERTEX_SHADER?\"vertex\":\"fragment\",t.getShaderInfoLog(n),Jt(i)),n}function Kt(t){switch(t){case os:return[\"Linear\",\"( value )\"];case ss:return[\"sRGB\",\"( value )\"];case hs:return[\"RGBE\",\"( value )\"];case ls:return[\"RGBM\",\"( value, 7.0 )\"];case us:return[\"RGBM\",\"( value, 16.0 )\"];case ps:return[\"RGBD\",\"( value, 256.0 )\"];case cs:return[\"Gamma\",\"( value, float( GAMMA_FACTOR ) )\"];default:throw new Error(\"unsupported encoding: \"+t)}}function $t(t,e){var i=Kt(e);return\"vec4 \"+t+\"( vec4 value ) { return \"+i[0]+\"ToLinear\"+i[1]+\"; }\"}function te(t,e){var i=Kt(e);return\"vec4 \"+t+\"( vec4 value ) { return LinearTo\"+i[0]+i[1]+\"; }\"}function ee(t,e){var i;switch(e){case ao:i=\"Linear\";break;case oo:i=\"Reinhard\";break;case so:i=\"Uncharted2\";break;case co:i=\"OptimizedCineon\";break;default:throw new Error(\"unsupported toneMapping: \"+e)}return\"vec3 \"+t+\"( vec3 color ) { return \"+i+\"ToneMapping( color ); }\"}function ie(t,e,i){return t=t||{},[t.derivatives||e.envMapCubeUV||e.bumpMap||e.normalMap||e.flatShading?\"#extension GL_OES_standard_derivatives : enable\":\"\",(t.fragDepth||e.logarithmicDepthBuffer)&&i.get(\"EXT_frag_depth\")?\"#extension GL_EXT_frag_depth : enable\":\"\",t.drawBuffers&&i.get(\"WEBGL_draw_buffers\")?\"#extension GL_EXT_draw_buffers : require\":\"\",(t.shaderTextureLOD||e.envMap)&&i.get(\"EXT_shader_texture_lod\")?\"#extension GL_EXT_shader_texture_lod : enable\":\"\"].filter(ae).join(\"\\n\")}function ne(t){var e=[];for(var i in t){var n=t[i];!1!==n&&e.push(\"#define \"+i+\" \"+n)}return e.join(\"\\n\")}function re(t,e){for(var i={},n=t.getProgramParameter(e,t.ACTIVE_ATTRIBUTES),r=0;r<n;r++){var a=t.getActiveAttrib(e,r),o=a.name;i[o]=t.getAttribLocation(e,o)}return i}function ae(t){return\"\"!==t}function oe(t,e){return t.replace(/NUM_DIR_LIGHTS/g,e.numDirLights).replace(/NUM_SPOT_LIGHTS/g,e.numSpotLights).replace(/NUM_RECT_AREA_LIGHTS/g,e.numRectAreaLights).replace(/NUM_POINT_LIGHTS/g,e.numPointLights).replace(/NUM_HEMI_LIGHTS/g,e.numHemiLights)}function se(t){function e(t,e){var i=As[e];if(void 0===i)throw new Error(\"Can not resolve #include <\"+e+\">\");return se(i)}var i=/^[ \\t]*#include +<([\\w\\d.]+)>/gm;return t.replace(i,e)}function ce(t){function e(t,e,i,n){for(var r=\"\",a=parseInt(e);a<parseInt(i);a++)r+=n.replace(/\\[ i \\]/g,\"[ \"+a+\" ]\");return r}var i=/for \\( int i \\= (\\d+)\\; i < (\\d+)\\; i \\+\\+ \\) \\{([\\s\\S]+?)(?=\\})\\}/g;return t.replace(i,e)}function he(t,e,i,n,r,a){var o=t.context,s=n.defines,c=r.vertexShader,h=r.fragmentShader,l=\"SHADOWMAP_TYPE_BASIC\";a.shadowMapType===va?l=\"SHADOWMAP_TYPE_PCF\":a.shadowMapType===ya&&(l=\"SHADOWMAP_TYPE_PCF_SOFT\");var u=\"ENVMAP_TYPE_CUBE\",p=\"ENVMAP_MODE_REFLECTION\",d=\"ENVMAP_BLENDING_MULTIPLY\";if(a.envMap){switch(n.envMap.mapping){case ho:case lo:u=\"ENVMAP_TYPE_CUBE\";break;case mo:case go:u=\"ENVMAP_TYPE_CUBE_UV\";break;case uo:case po:u=\"ENVMAP_TYPE_EQUIREC\";break;case fo:u=\"ENVMAP_TYPE_SPHERE\"}switch(n.envMap.mapping){case lo:case po:p=\"ENVMAP_MODE_REFRACTION\"}switch(n.combine){case eo:d=\"ENVMAP_BLENDING_MULTIPLY\";break;case io:d=\"ENVMAP_BLENDING_MIX\";break;case no:d=\"ENVMAP_BLENDING_ADD\"}}var f,m,g=t.gammaFactor>0?t.gammaFactor:1,v=ie(n.extensions,a,e),y=ne(s),x=o.createProgram();n.isRawShaderMaterial?(f=[y].filter(ae).join(\"\\n\"),f.length>0&&(f+=\"\\n\"),m=[v,y].filter(ae).join(\"\\n\"),m.length>0&&(m+=\"\\n\")):(f=[\"precision \"+a.precision+\" float;\",\"precision \"+a.precision+\" int;\",\"#define SHADER_NAME \"+r.name,y,a.supportsVertexTextures?\"#define VERTEX_TEXTURES\":\"\",\"#define GAMMA_FACTOR \"+g,\"#define MAX_BONES \"+a.maxBones,a.useFog&&a.fog?\"#define USE_FOG\":\"\",a.useFog&&a.fogExp?\"#define FOG_EXP2\":\"\",a.map?\"#define USE_MAP\":\"\",a.envMap?\"#define USE_ENVMAP\":\"\",a.envMap?\"#define \"+p:\"\",a.lightMap?\"#define USE_LIGHTMAP\":\"\",a.aoMap?\"#define USE_AOMAP\":\"\",a.emissiveMap?\"#define USE_EMISSIVEMAP\":\"\",a.bumpMap?\"#define USE_BUMPMAP\":\"\",a.normalMap?\"#define USE_NORMALMAP\":\"\",a.displacementMap&&a.supportsVertexTextures?\"#define USE_DISPLACEMENTMAP\":\"\",a.specularMap?\"#define USE_SPECULARMAP\":\"\",a.roughnessMap?\"#define USE_ROUGHNESSMAP\":\"\",a.metalnessMap?\"#define USE_METALNESSMAP\":\"\",a.alphaMap?\"#define USE_ALPHAMAP\":\"\",a.vertexColors?\"#define USE_COLOR\":\"\",a.flatShading?\"#define FLAT_SHADED\":\"\",a.skinning?\"#define USE_SKINNING\":\"\",a.useVertexTexture?\"#define BONE_TEXTURE\":\"\",a.morphTargets?\"#define USE_MORPHTARGETS\":\"\",a.morphNormals&&!1===a.flatShading?\"#define USE_MORPHNORMALS\":\"\",a.doubleSided?\"#define DOUBLE_SIDED\":\"\",a.flipSided?\"#define FLIP_SIDED\":\"\",\"#define NUM_CLIPPING_PLANES \"+a.numClippingPlanes,a.shadowMapEnabled?\"#define USE_SHADOWMAP\":\"\",a.shadowMapEnabled?\"#define \"+l:\"\",a.sizeAttenuation?\"#define USE_SIZEATTENUATION\":\"\",a.logarithmicDepthBuffer?\"#define USE_LOGDEPTHBUF\":\"\",a.logarithmicDepthBuffer&&e.get(\"EXT_frag_depth\")?\"#define USE_LOGDEPTHBUF_EXT\":\"\",\"uniform mat4 modelMatrix;\",\"uniform mat4 modelViewMatrix;\",\"uniform mat4 projectionMatrix;\",\"uniform mat4 viewMatrix;\",\"uniform mat3 normalMatrix;\",\"uniform vec3 cameraPosition;\",\"attribute vec3 position;\",\"attribute vec3 normal;\",\"attribute vec2 uv;\",\"#ifdef USE_COLOR\",\"\\tattribute vec3 color;\",\"#endif\",\"#ifdef USE_MORPHTARGETS\",\"\\tattribute vec3 morphTarget0;\",\"\\tattribute vec3 morphTarget1;\",\"\\tattribute vec3 morphTarget2;\",\"\\tattribute vec3 morphTarget3;\",\"\\t#ifdef USE_MORPHNORMALS\",\"\\t\\tattribute vec3 morphNormal0;\",\"\\t\\tattribute vec3 morphNormal1;\",\"\\t\\tattribute vec3 morphNormal2;\",\"\\t\\tattribute vec3 morphNormal3;\",\"\\t#else\",\"\\t\\tattribute vec3 morphTarget4;\",\"\\t\\tattribute vec3 morphTarget5;\",\"\\t\\tattribute vec3 morphTarget6;\",\"\\t\\tattribute vec3 morphTarget7;\",\"\\t#endif\",\"#endif\",\"#ifdef USE_SKINNING\",\"\\tattribute vec4 skinIndex;\",\"\\tattribute vec4 skinWeight;\",\"#endif\",\"\\n\"].filter(ae).join(\"\\n\"),m=[v,\"precision \"+a.precision+\" float;\",\"precision \"+a.precision+\" int;\",\"#define SHADER_NAME \"+r.name,y,a.alphaTest?\"#define ALPHATEST \"+a.alphaTest:\"\",\"#define GAMMA_FACTOR \"+g,a.useFog&&a.fog?\"#define USE_FOG\":\"\",a.useFog&&a.fogExp?\"#define FOG_EXP2\":\"\",a.map?\"#define USE_MAP\":\"\",a.envMap?\"#define USE_ENVMAP\":\"\",a.envMap?\"#define \"+u:\"\",a.envMap?\"#define \"+p:\"\",a.envMap?\"#define \"+d:\"\",a.lightMap?\"#define USE_LIGHTMAP\":\"\",a.aoMap?\"#define USE_AOMAP\":\"\",a.emissiveMap?\"#define USE_EMISSIVEMAP\":\"\",a.bumpMap?\"#define USE_BUMPMAP\":\"\",a.normalMap?\"#define USE_NORMALMAP\":\"\",a.specularMap?\"#define USE_SPECULARMAP\":\"\",a.roughnessMap?\"#define USE_ROUGHNESSMAP\":\"\",a.metalnessMap?\"#define USE_METALNESSMAP\":\"\",a.alphaMap?\"#define USE_ALPHAMAP\":\"\",a.vertexColors?\"#define USE_COLOR\":\"\",a.gradientMap?\"#define USE_GRADIENTMAP\":\"\",a.flatShading?\"#define FLAT_SHADED\":\"\",a.doubleSided?\"#define DOUBLE_SIDED\":\"\",a.flipSided?\"#define FLIP_SIDED\":\"\",\"#define NUM_CLIPPING_PLANES \"+a.numClippingPlanes,\"#define UNION_CLIPPING_PLANES \"+(a.numClippingPlanes-a.numClipIntersection),a.shadowMapEnabled?\"#define USE_SHADOWMAP\":\"\",a.shadowMapEnabled?\"#define \"+l:\"\",a.premultipliedAlpha?\"#define PREMULTIPLIED_ALPHA\":\"\",a.physicallyCorrectLights?\"#define PHYSICALLY_CORRECT_LIGHTS\":\"\",a.logarithmicDepthBuffer?\"#define USE_LOGDEPTHBUF\":\"\",a.logarithmicDepthBuffer&&e.get(\"EXT_frag_depth\")?\"#define USE_LOGDEPTHBUF_EXT\":\"\",a.envMap&&e.get(\"EXT_shader_texture_lod\")?\"#define TEXTURE_LOD_EXT\":\"\",\"uniform mat4 viewMatrix;\",\"uniform vec3 cameraPosition;\",a.toneMapping!==ro?\"#define TONE_MAPPING\":\"\",a.toneMapping!==ro?As.tonemapping_pars_fragment:\"\",a.toneMapping!==ro?ee(\"toneMapping\",a.toneMapping):\"\",a.dithering?\"#define DITHERING\":\"\",a.outputEncoding||a.mapEncoding||a.envMapEncoding||a.emissiveMapEncoding?As.encodings_pars_fragment:\"\",a.mapEncoding?$t(\"mapTexelToLinear\",a.mapEncoding):\"\",a.envMapEncoding?$t(\"envMapTexelToLinear\",a.envMapEncoding):\"\",a.emissiveMapEncoding?$t(\"emissiveMapTexelToLinear\",a.emissiveMapEncoding):\"\",a.outputEncoding?te(\"linearToOutputTexel\",a.outputEncoding):\"\",a.depthPacking?\"#define DEPTH_PACKING \"+n.depthPacking:\"\",\"\\n\"].filter(ae).join(\"\\n\")),c=se(c),c=oe(c,a),h=se(h),h=oe(h,a),n.isShaderMaterial||(c=ce(c),h=ce(h));var b=f+c,_=m+h,w=Qt(o,o.VERTEX_SHADER,b),M=Qt(o,o.FRAGMENT_SHADER,_);o.attachShader(x,w),o.attachShader(x,M),void 0!==n.index0AttributeName?o.bindAttribLocation(x,0,n.index0AttributeName):!0===a.morphTargets&&o.bindAttribLocation(x,0,\"position\"),o.linkProgram(x);var E=o.getProgramInfoLog(x),T=o.getShaderInfoLog(w),S=o.getShaderInfoLog(M),A=!0,R=!0;!1===o.getProgramParameter(x,o.LINK_STATUS)?(A=!1,console.error(\"THREE.WebGLProgram: shader error: \",o.getError(),\"gl.VALIDATE_STATUS\",o.getProgramParameter(x,o.VALIDATE_STATUS),\"gl.getProgramInfoLog\",E,T,S)):\"\"!==E?console.warn(\"THREE.WebGLProgram: gl.getProgramInfoLog()\",E):\"\"!==T&&\"\"!==S||(R=!1),R&&(this.diagnostics={runnable:A,material:n,programLog:E,vertexShader:{log:T,prefix:f},fragmentShader:{log:S,prefix:m}}),o.deleteShader(w),o.deleteShader(M);var L;this.getUniforms=function(){return void 0===L&&(L=new X(o,x,t)),L};var P;return this.getAttributes=function(){return void 0===P&&(P=re(o,x)),P},this.destroy=function(){o.deleteProgram(x),this.program=void 0},Object.defineProperties(this,{uniforms:{get:function(){return console.warn(\"THREE.WebGLProgram: .uniforms is now .getUniforms().\"),this.getUniforms()}},attributes:{get:function(){return console.warn(\"THREE.WebGLProgram: .attributes is now .getAttributes().\"),this.getAttributes()}}}),this.id=Us++,this.code=i,this.usedTimes=1,this.program=x,this.vertexShader=w,this.fragmentShader=M,this}function le(t,e,i){function n(t){var e=t.skeleton,n=e.bones;if(i.floatVertexTextures)return 1024;var r=i.maxVertexUniforms,a=Math.floor((r-20)/4),o=Math.min(a,n.length);return o<n.length?(console.warn(\"THREE.WebGLRenderer: Skeleton has \"+n.length+\" bones. This GPU supports \"+o+\".\"),0):o}function r(t,e){var i;return t?t.isTexture?i=t.encoding:t.isWebGLRenderTarget&&(console.warn(\"THREE.WebGLPrograms.getTextureEncodingFromMap: don't use render targets as textures. Use their .texture property instead.\"),i=t.texture.encoding):i=os,i===os&&e&&(i=cs),i}var a=[],o={MeshDepthMaterial:\"depth\",MeshDistanceMaterial:\"distanceRGBA\",MeshNormalMaterial:\"normal\",MeshBasicMaterial:\"basic\",MeshLambertMaterial:\"lambert\",MeshPhongMaterial:\"phong\",MeshToonMaterial:\"phong\",MeshStandardMaterial:\"physical\",MeshPhysicalMaterial:\"physical\",LineBasicMaterial:\"basic\",LineDashedMaterial:\"dashed\",PointsMaterial:\"points\",ShadowMaterial:\"shadow\"},s=[\"precision\",\"supportsVertexTextures\",\"map\",\"mapEncoding\",\"envMap\",\"envMapMode\",\"envMapEncoding\",\"lightMap\",\"aoMap\",\"emissiveMap\",\"emissiveMapEncoding\",\"bumpMap\",\"normalMap\",\"displacementMap\",\"specularMap\",\"roughnessMap\",\"metalnessMap\",\"gradientMap\",\"alphaMap\",\"combine\",\"vertexColors\",\"fog\",\"useFog\",\"fogExp\",\"flatShading\",\"sizeAttenuation\",\"logarithmicDepthBuffer\",\"skinning\",\"maxBones\",\"useVertexTexture\",\"morphTargets\",\"morphNormals\",\"maxMorphTargets\",\"maxMorphNormals\",\"premultipliedAlpha\",\"numDirLights\",\"numPointLights\",\"numSpotLights\",\"numHemiLights\",\"numRectAreaLights\",\"shadowMapEnabled\",\"shadowMapType\",\"toneMapping\",\"physicallyCorrectLights\",\"alphaTest\",\"doubleSided\",\"flipSided\",\"numClippingPlanes\",\"numClipIntersection\",\"depthPacking\",\"dithering\"];this.getParameters=function(e,a,s,c,h,l,u){var p=o[e.type],d=u.isSkinnedMesh?n(u):0,f=i.precision;null!==e.precision&&(f=i.getMaxPrecision(e.precision))!==e.precision&&console.warn(\"THREE.WebGLProgram.getParameters:\",e.precision,\"not supported, using\",f,\"instead.\");var m=t.getRenderTarget();return{shaderID:p,precision:f,supportsVertexTextures:i.vertexTextures,outputEncoding:r(m?m.texture:null,t.gammaOutput),map:!!e.map,mapEncoding:r(e.map,t.gammaInput),envMap:!!e.envMap,envMapMode:e.envMap&&e.envMap.mapping,envMapEncoding:r(e.envMap,t.gammaInput),envMapCubeUV:!!e.envMap&&(e.envMap.mapping===mo||e.envMap.mapping===go),lightMap:!!e.lightMap,aoMap:!!e.aoMap,emissiveMap:!!e.emissiveMap,emissiveMapEncoding:r(e.emissiveMap,t.gammaInput),bumpMap:!!e.bumpMap,normalMap:!!e.normalMap,displacementMap:!!e.displacementMap,roughnessMap:!!e.roughnessMap,metalnessMap:!!e.metalnessMap,specularMap:!!e.specularMap,alphaMap:!!e.alphaMap,gradientMap:!!e.gradientMap,combine:e.combine,vertexColors:e.vertexColors,fog:!!c,useFog:e.fog,fogExp:c&&c.isFogExp2,flatShading:e.flatShading,sizeAttenuation:e.sizeAttenuation,logarithmicDepthBuffer:i.logarithmicDepthBuffer,skinning:e.skinning&&d>0,maxBones:d,useVertexTexture:i.floatVertexTextures,morphTargets:e.morphTargets,morphNormals:e.morphNormals,maxMorphTargets:t.maxMorphTargets,maxMorphNormals:t.maxMorphNormals,numDirLights:a.directional.length,numPointLights:a.point.length,numSpotLights:a.spot.length,numRectAreaLights:a.rectArea.length,numHemiLights:a.hemi.length,numClippingPlanes:h,numClipIntersection:l,dithering:e.dithering,shadowMapEnabled:t.shadowMap.enabled&&u.receiveShadow&&s.length>0,shadowMapType:t.shadowMap.type,toneMapping:t.toneMapping,physicallyCorrectLights:t.physicallyCorrectLights,premultipliedAlpha:e.premultipliedAlpha,alphaTest:e.alphaTest,doubleSided:e.side===_a,flipSided:e.side===ba,depthPacking:void 0!==e.depthPacking&&e.depthPacking}},this.getProgramCode=function(e,i){var n=[];if(i.shaderID?n.push(i.shaderID):(n.push(e.fragmentShader),n.push(e.vertexShader)),void 0!==e.defines)for(var r in e.defines)n.push(r),n.push(e.defines[r]);for(var a=0;a<s.length;a++)n.push(i[s[a]]);return n.push(e.onBeforeCompile.toString()),n.push(t.gammaOutput),n.join()},this.acquireProgram=function(i,n,r,o){for(var s,c=0,h=a.length;c<h;c++){var l=a[c];if(l.code===o){s=l,++s.usedTimes;break}}return void 0===s&&(s=new he(t,e,o,i,n,r),a.push(s)),s},this.releaseProgram=function(t){if(0==--t.usedTimes){var e=a.indexOf(t);a[e]=a[a.length-1],a.pop(),t.destroy()}},this.programs=a}function ue(t,e,i,n,r,a,o){function s(t,e){if(t.width>e||t.height>e){var i=e/Math.max(t.width,t.height),n=document.createElementNS(\"http://www.w3.org/1999/xhtml\",\"canvas\");n.width=Math.floor(t.width*i),n.height=Math.floor(t.height*i);return n.getContext(\"2d\").drawImage(t,0,0,t.width,t.height,0,0,n.width,n.height),console.warn(\"THREE.WebGLRenderer: image is too big (\"+t.width+\"x\"+t.height+\"). Resized to \"+n.width+\"x\"+n.height,t),n}return t}function c(t){return ms.isPowerOfTwo(t.width)&&ms.isPowerOfTwo(t.height)}function h(t){if(t instanceof HTMLImageElement||t instanceof HTMLCanvasElement||t instanceof ImageBitmap){var e=document.createElementNS(\"http://www.w3.org/1999/xhtml\",\"canvas\");e.width=ms.floorPowerOfTwo(t.width),e.height=ms.floorPowerOfTwo(t.height);return e.getContext(\"2d\").drawImage(t,0,0,e.width,e.height),console.warn(\"THREE.WebGLRenderer: image is not power of two (\"+t.width+\"x\"+t.height+\"). 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Texture.wrapS and Texture.wrapT should be set to THREE.ClampToEdgeWrapping.\",o),t.texParameteri(i,t.TEXTURE_MAG_FILTER,p(o.magFilter)),t.texParameteri(i,t.TEXTURE_MIN_FILTER,p(o.minFilter)),o.minFilter!==bo&&o.minFilter!==Mo&&console.warn(\"THREE.WebGLRenderer: Texture is not power of two. Texture.minFilter should be set to THREE.NearestFilter or THREE.LinearFilter.\",o)),c=e.get(\"EXT_texture_filter_anisotropic\")){if(o.type===Io&&null===e.get(\"OES_texture_float_linear\"))return;if(o.type===Uo&&null===e.get(\"OES_texture_half_float_linear\"))return;(o.anisotropy>1||n.get(o).__currentAnisotropy)&&(t.texParameterf(i,c.TEXTURE_MAX_ANISOTROPY_EXT,Math.min(o.anisotropy,r.getMaxAnisotropy())),n.get(o).__currentAnisotropy=o.anisotropy)}}function _(e,n,p){void 0===e.__webglInit&&(e.__webglInit=!0,n.addEventListener(\"dispose\",d),e.__webglTexture=t.createTexture(),o.textures++),i.activeTexture(t.TEXTURE0+p),i.bindTexture(t.TEXTURE_2D,e.__webglTexture),t.pixelStorei(t.UNPACK_FLIP_Y_WEBGL,n.flipY),t.pixelStorei(t.UNPACK_PREMULTIPLY_ALPHA_WEBGL,n.premultiplyAlpha),t.pixelStorei(t.UNPACK_ALIGNMENT,n.unpackAlignment);var f=s(n.image,r.maxTextureSize);l(n)&&!1===c(f)&&(f=h(f));var m=c(f),g=a.convert(n.format),v=a.convert(n.type);b(t.TEXTURE_2D,n,m);var y,x=n.mipmaps;if(n.isDepthTexture){var _=t.DEPTH_COMPONENT;if(n.type===Io){if(!R)throw new Error(\"Float Depth Texture only supported in WebGL2.0\");_=t.DEPTH_COMPONENT32F}else R&&(_=t.DEPTH_COMPONENT16);n.format===jo&&_===t.DEPTH_COMPONENT&&n.type!==Lo&&n.type!==Co&&(console.warn(\"THREE.WebGLRenderer: Use UnsignedShortType or UnsignedIntType for DepthFormat DepthTexture.\"),n.type=Lo,v=a.convert(n.type)),n.format===Wo&&(_=t.DEPTH_STENCIL,n.type!==Fo&&(console.warn(\"THREE.WebGLRenderer: Use UnsignedInt248Type for DepthStencilFormat DepthTexture.\"),n.type=Fo,v=a.convert(n.type))),i.texImage2D(t.TEXTURE_2D,0,_,f.width,f.height,0,g,v,null)}else if(n.isDataTexture)if(x.length>0&&m){for(var w=0,M=x.length;w<M;w++)y=x[w],i.texImage2D(t.TEXTURE_2D,w,g,y.width,y.height,0,g,v,y.data);n.generateMipmaps=!1}else i.texImage2D(t.TEXTURE_2D,0,g,f.width,f.height,0,g,v,f.data);else if(n.isCompressedTexture)for(var w=0,M=x.length;w<M;w++)y=x[w],n.format!==Go&&n.format!==zo?i.getCompressedTextureFormats().indexOf(g)>-1?i.compressedTexImage2D(t.TEXTURE_2D,w,g,y.width,y.height,0,y.data):console.warn(\"THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()\"):i.texImage2D(t.TEXTURE_2D,w,g,y.width,y.height,0,g,v,y.data);else if(x.length>0&&m){for(var w=0,M=x.length;w<M;w++)y=x[w],i.texImage2D(t.TEXTURE_2D,w,g,g,v,y);n.generateMipmaps=!1}else i.texImage2D(t.TEXTURE_2D,0,g,g,v,f);u(n,m)&&t.generateMipmap(t.TEXTURE_2D),e.__version=n.version,n.onUpdate&&n.onUpdate(n)}function w(e,r,o,s){var c=a.convert(r.texture.format),h=a.convert(r.texture.type);i.texImage2D(s,0,c,r.width,r.height,0,c,h,null),t.bindFramebuffer(t.FRAMEBUFFER,e),t.framebufferTexture2D(t.FRAMEBUFFER,o,s,n.get(r.texture).__webglTexture,0),t.bindFramebuffer(t.FRAMEBUFFER,null)}function M(e,i){t.bindRenderbuffer(t.RENDERBUFFER,e),i.depthBuffer&&!i.stencilBuffer?(t.renderbufferStorage(t.RENDERBUFFER,t.DEPTH_COMPONENT16,i.width,i.height),t.framebufferRenderbuffer(t.FRAMEBUFFER,t.DEPTH_ATTACHMENT,t.RENDERBUFFER,e)):i.depthBuffer&&i.stencilBuffer?(t.renderbufferStorage(t.RENDERBUFFER,t.DEPTH_STENCIL,i.width,i.height),t.framebufferRenderbuffer(t.FRAMEBUFFER,t.DEPTH_STENCIL_ATTACHMENT,t.RENDERBUFFER,e)):t.renderbufferStorage(t.RENDERBUFFER,t.RGBA4,i.width,i.height),t.bindRenderbuffer(t.RENDERBUFFER,null)}function E(e,i){if(i&&i.isWebGLRenderTargetCube)throw new Error(\"Depth Texture with cube render targets is not supported\");if(t.bindFramebuffer(t.FRAMEBUFFER,e),!i.depthTexture||!i.depthTexture.isDepthTexture)throw new Error(\"renderTarget.depthTexture must be an instance of THREE.DepthTexture\");n.get(i.depthTexture).__webglTexture&&i.depthTexture.image.width===i.width&&i.depthTexture.image.height===i.height||(i.depthTexture.image.width=i.width,i.depthTexture.image.height=i.height,i.depthTexture.needsUpdate=!0),v(i.depthTexture,0);var r=n.get(i.depthTexture).__webglTexture;if(i.depthTexture.format===jo)t.framebufferTexture2D(t.FRAMEBUFFER,t.DEPTH_ATTACHMENT,t.TEXTURE_2D,r,0);else{\nif(i.depthTexture.format!==Wo)throw new Error(\"Unknown depthTexture format\");t.framebufferTexture2D(t.FRAMEBUFFER,t.DEPTH_STENCIL_ATTACHMENT,t.TEXTURE_2D,r,0)}}function T(e){var i=n.get(e),r=!0===e.isWebGLRenderTargetCube;if(e.depthTexture){if(r)throw new Error(\"target.depthTexture not supported in Cube render targets\");E(i.__webglFramebuffer,e)}else if(r){i.__webglDepthbuffer=[];for(var a=0;a<6;a++)t.bindFramebuffer(t.FRAMEBUFFER,i.__webglFramebuffer[a]),i.__webglDepthbuffer[a]=t.createRenderbuffer(),M(i.__webglDepthbuffer[a],e)}else t.bindFramebuffer(t.FRAMEBUFFER,i.__webglFramebuffer),i.__webglDepthbuffer=t.createRenderbuffer(),M(i.__webglDepthbuffer,e);t.bindFramebuffer(t.FRAMEBUFFER,null)}function S(e){var r=n.get(e),a=n.get(e.texture);e.addEventListener(\"dispose\",f),a.__webglTexture=t.createTexture(),o.textures++;var s=!0===e.isWebGLRenderTargetCube,h=c(e);if(s){r.__webglFramebuffer=[];for(var l=0;l<6;l++)r.__webglFramebuffer[l]=t.createFramebuffer()}else r.__webglFramebuffer=t.createFramebuffer();if(s){i.bindTexture(t.TEXTURE_CUBE_MAP,a.__webglTexture),b(t.TEXTURE_CUBE_MAP,e.texture,h);for(var l=0;l<6;l++)w(r.__webglFramebuffer[l],e,t.COLOR_ATTACHMENT0,t.TEXTURE_CUBE_MAP_POSITIVE_X+l);u(e.texture,h)&&t.generateMipmap(t.TEXTURE_CUBE_MAP),i.bindTexture(t.TEXTURE_CUBE_MAP,null)}else i.bindTexture(t.TEXTURE_2D,a.__webglTexture),b(t.TEXTURE_2D,e.texture,h),w(r.__webglFramebuffer,e,t.COLOR_ATTACHMENT0,t.TEXTURE_2D),u(e.texture,h)&&t.generateMipmap(t.TEXTURE_2D),i.bindTexture(t.TEXTURE_2D,null);e.depthBuffer&&T(e)}function A(e){var r=e.texture;if(u(r,c(e))){var a=e.isWebGLRenderTargetCube?t.TEXTURE_CUBE_MAP:t.TEXTURE_2D,o=n.get(r).__webglTexture;i.bindTexture(a,o),t.generateMipmap(a),i.bindTexture(a,null)}}var R=\"undefined\"!=typeof WebGL2RenderingContext&&t instanceof window.WebGL2RenderingContext;this.setTexture2D=v,this.setTextureCube=y,this.setTextureCubeDynamic=x,this.setupRenderTarget=S,this.updateRenderTargetMipmap=A}function pe(){function t(t){var e=t.uuid,i=n[e];return void 0===i&&(i={},n[e]=i),i}function e(t){delete n[t.uuid]}function i(){n={}}var n={};return{get:t,remove:e,clear:i}}function de(t,e,i){function n(){var e=!1,i=new c,n=null,r=new 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Ra:h?(t.blendEquationSeparate(t.FUNC_ADD,t.FUNC_ADD),t.blendFuncSeparate(t.ZERO,t.ZERO,t.ONE_MINUS_SRC_COLOR,t.ONE_MINUS_SRC_ALPHA)):(t.blendEquation(t.FUNC_ADD),t.blendFunc(t.ZERO,t.ONE_MINUS_SRC_COLOR));break;case La:h?(t.blendEquationSeparate(t.FUNC_ADD,t.FUNC_ADD),t.blendFuncSeparate(t.ZERO,t.SRC_COLOR,t.ZERO,t.SRC_ALPHA)):(t.blendEquation(t.FUNC_ADD),t.blendFunc(t.ZERO,t.SRC_COLOR));break;default:h?(t.blendEquationSeparate(t.FUNC_ADD,t.FUNC_ADD),t.blendFuncSeparate(t.ONE,t.ONE_MINUS_SRC_ALPHA,t.ONE,t.ONE_MINUS_SRC_ALPHA)):(t.blendEquationSeparate(t.FUNC_ADD,t.FUNC_ADD),t.blendFuncSeparate(t.SRC_ALPHA,t.ONE_MINUS_SRC_ALPHA,t.ONE,t.ONE_MINUS_SRC_ALPHA))}H=null,V=null,k=null,j=null,W=null,X=null}else o=o||n,s=s||r,c=c||a,n===H&&o===j||(t.blendEquationSeparate(i.convert(n),i.convert(o)),H=n,j=o),r===V&&a===k&&s===W&&c===X||(t.blendFuncSeparate(i.convert(r),i.convert(a),i.convert(s),i.convert(c)),V=r,k=a,W=s,X=c);G=e,q=h}function v(e){e.side===_a?d(t.CULL_FACE):p(t.CULL_FACE),y(e.side===ba),!0===e.transparent?g(e.blending,e.blendEquation,e.blendSrc,e.blendDst,e.blendEquationAlpha,e.blendSrcAlpha,e.blendDstAlpha,e.premultipliedAlpha):g(Ta),C.setFunc(e.depthFunc),C.setTest(e.depthTest),C.setMask(e.depthWrite),P.setMask(e.colorWrite),_(e.polygonOffset,e.polygonOffsetFactor,e.polygonOffsetUnits)}function y(e){Y!==e&&(e?t.frontFace(t.CW):t.frontFace(t.CCW),Y=e)}function x(e){e!==da?(p(t.CULL_FACE),e!==Z&&(e===fa?t.cullFace(t.BACK):e===ma?t.cullFace(t.FRONT):t.cullFace(t.FRONT_AND_BACK))):d(t.CULL_FACE),Z=e}function b(e){e!==J&&(et&&t.lineWidth(e),J=e)}function _(e,i,n){e?(p(t.POLYGON_OFFSET_FILL),Q===i&&K===n||(t.polygonOffset(i,n),Q=i,K=n)):d(t.POLYGON_OFFSET_FILL)}function w(e){e?p(t.SCISSOR_TEST):d(t.SCISSOR_TEST)}function M(e){void 0===e&&(e=t.TEXTURE0+$-1),it!==e&&(t.activeTexture(e),it=e)}function E(e,i){null===it&&M();var n=nt[it];void 0===n&&(n={type:void 0,texture:void 0},nt[it]=n),n.type===e&&n.texture===i||(t.bindTexture(e,i||ot[e]),n.type=e,n.texture=i)}function T(){try{t.compressedTexImage2D.apply(t,arguments)}catch(t){console.error(\"THREE.WebGLState:\",t)}}function S(){try{t.texImage2D.apply(t,arguments)}catch(t){console.error(\"THREE.WebGLState:\",t)}}function A(e){!1===rt.equals(e)&&(t.scissor(e.x,e.y,e.z,e.w),rt.copy(e))}function R(e){!1===at.equals(e)&&(t.viewport(e.x,e.y,e.z,e.w),at.copy(e))}function L(){for(var e=0;e<O.length;e++)1===O[e]&&(t.disableVertexAttribArray(e),O[e]=0);F={},B=null,it=null,nt={},z=null,G=null,Y=null,Z=null,P.reset(),C.reset(),I.reset()}var P=new n,C=new r,I=new a,U=t.getParameter(t.MAX_VERTEX_ATTRIBS),D=new Uint8Array(U),O=new Uint8Array(U),N=new Uint8Array(U),F={},B=null,z=null,G=null,H=null,V=null,k=null,j=null,W=null,X=null,q=!1,Y=null,Z=null,J=null,Q=null,K=null,$=t.getParameter(t.MAX_COMBINED_TEXTURE_IMAGE_UNITS),tt=parseFloat(/^WebGL\\ 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r(e){if(\"highp\"===e){if(t.getShaderPrecisionFormat(t.VERTEX_SHADER,t.HIGH_FLOAT).precision>0&&t.getShaderPrecisionFormat(t.FRAGMENT_SHADER,t.HIGH_FLOAT).precision>0)return\"highp\";e=\"mediump\"}return\"mediump\"===e&&t.getShaderPrecisionFormat(t.VERTEX_SHADER,t.MEDIUM_FLOAT).precision>0&&t.getShaderPrecisionFormat(t.FRAGMENT_SHADER,t.MEDIUM_FLOAT).precision>0?\"mediump\":\"lowp\"}var a,o=void 0!==i.precision?i.precision:\"highp\",s=r(o);s!==o&&(console.warn(\"THREE.WebGLRenderer:\",o,\"not supported, using\",s,\"instead.\"),o=s);var c=!0===i.logarithmicDepthBuffer,h=t.getParameter(t.MAX_TEXTURE_IMAGE_UNITS),l=t.getParameter(t.MAX_VERTEX_TEXTURE_IMAGE_UNITS),u=t.getParameter(t.MAX_TEXTURE_SIZE),p=t.getParameter(t.MAX_CUBE_MAP_TEXTURE_SIZE),d=t.getParameter(t.MAX_VERTEX_ATTRIBS),f=t.getParameter(t.MAX_VERTEX_UNIFORM_VECTORS),m=t.getParameter(t.MAX_VARYING_VECTORS),g=t.getParameter(t.MAX_FRAGMENT_UNIFORM_VECTORS),v=l>0,y=!!e.get(\"OES_texture_float\");return{getMaxAnisotropy:n,getMaxPrecision:r,precision:o,logarithmicDepthBuffer:c,maxTextures:h,maxVertexTextures:l,maxTextureSize:u,maxCubemapSize:p,maxAttributes:d,maxVertexUniforms:f,maxVaryings:m,maxFragmentUniforms:g,vertexTextures:v,floatFragmentTextures:y,floatVertexTextures:v&&y}}function me(t,e,i,n){lt.call(this),this.type=\"PerspectiveCamera\",this.fov=void 0!==t?t:50,this.zoom=1,this.near=void 0!==i?i:.1,this.far=void 0!==n?n:2e3,this.focus=10,this.aspect=void 0!==e?e:1,this.view=null,this.filmGauge=35,this.filmOffset=0,this.updateProjectionMatrix()}function ge(t){me.call(this),this.cameras=t||[]}function ve(t){function e(){if(null!==r&&r.isPresenting){var e=r.getEyeParameters(\"left\"),n=e.renderWidth,a=e.renderHeight;f=t.getPixelRatio(),d=t.getSize(),t.setDrawingBufferSize(2*n,a,1)}else i.enabled&&t.setDrawingBufferSize(d.width,d.height,f)}var i=this,r=null,a=null;\"undefined\"!=typeof window&&\"VRFrameData\"in window&&(a=new window.VRFrameData);var o=new n,s=new n,h=new n,l=new me;l.bounds=new c(0,0,.5,1),l.layers.enable(1);var u=new me;u.bounds=new c(.5,0,.5,1),u.layers.enable(2);var p=new ge([l,u]);p.layers.enable(1),p.layers.enable(2);var d,f;\"undefined\"!=typeof window&&window.addEventListener(\"vrdisplaypresentchange\",e,!1),this.enabled=!1,this.standing=!1,this.getDevice=function(){return r},this.setDevice=function(t){void 0!==t&&(r=t)},this.getCamera=function(t){if(null===r)return t;r.depthNear=t.near,r.depthFar=t.far,r.getFrameData(a);var e=a.pose;null!==e.position?t.position.fromArray(e.position):t.position.set(0,0,0),null!==e.orientation&&t.quaternion.fromArray(e.orientation),t.updateMatrixWorld();var i=r.stageParameters;if(this.standing&&i&&(s.fromArray(i.sittingToStandingTransform),h.getInverse(s),t.matrixWorld.multiply(s),t.matrixWorldInverse.multiply(h)),!1===r.isPresenting)return t;l.near=t.near,u.near=t.near,l.far=t.far,u.far=t.far,p.matrixWorld.copy(t.matrixWorld),p.matrixWorldInverse.copy(t.matrixWorldInverse),l.matrixWorldInverse.fromArray(a.leftViewMatrix),u.matrixWorldInverse.fromArray(a.rightViewMatrix),this.standing&&i&&(l.matrixWorldInverse.multiply(h),u.matrixWorldInverse.multiply(h));var n=t.parent;null!==n&&(o.getInverse(n.matrixWorld),l.matrixWorldInverse.multiply(o),u.matrixWorldInverse.multiply(o)),l.matrixWorld.getInverse(l.matrixWorldInverse),u.matrixWorld.getInverse(u.matrixWorldInverse),l.projectionMatrix.fromArray(a.leftProjectionMatrix),u.projectionMatrix.fromArray(a.rightProjectionMatrix),p.projectionMatrix.copy(l.projectionMatrix);var c=r.getLayers();if(c.length){var d=c[0];null!==d.leftBounds&&4===d.leftBounds.length&&l.bounds.fromArray(d.leftBounds),null!==d.rightBounds&&4===d.rightBounds.length&&u.bounds.fromArray(d.rightBounds)}return p},this.getStandingMatrix=function(){return s},this.submitFrame=function(){r&&r.isPresenting&&r.submitFrame()},this.dispose=function(){\"undefined\"!=typeof window&&window.removeEventListener(\"vrdisplaypresentchange\",e)}}function ye(t){var e={};return{get:function(i){if(void 0!==e[i])return e[i];var n;switch(i){case\"WEBGL_depth_texture\":n=t.getExtension(\"WEBGL_depth_texture\")||t.getExtension(\"MOZ_WEBGL_depth_texture\")||t.getExtension(\"WEBKIT_WEBGL_depth_texture\");break;case\"EXT_texture_filter_anisotropic\":n=t.getExtension(\"EXT_texture_filter_anisotropic\")||t.getExtension(\"MOZ_EXT_texture_filter_anisotropic\")||t.getExtension(\"WEBKIT_EXT_texture_filter_anisotropic\");break;case\"WEBGL_compressed_texture_s3tc\":n=t.getExtension(\"WEBGL_compressed_texture_s3tc\")||t.getExtension(\"MOZ_WEBGL_compressed_texture_s3tc\")||t.getExtension(\"WEBKIT_WEBGL_compressed_texture_s3tc\");break;case\"WEBGL_compressed_texture_pvrtc\":n=t.getExtension(\"WEBGL_compressed_texture_pvrtc\")||t.getExtension(\"WEBKIT_WEBGL_compressed_texture_pvrtc\");break;case\"WEBGL_compressed_texture_etc1\":n=t.getExtension(\"WEBGL_compressed_texture_etc1\");break;default:n=t.getExtension(i)}return null===n&&console.warn(\"THREE.WebGLRenderer: \"+i+\" extension not supported.\"),e[i]=n,n}}}function xe(){function t(){l.value!==n&&(l.value=n,l.needsUpdate=r>0),i.numPlanes=r,i.numIntersection=0}function e(t,e,n,r){var a=null!==t?t.length:0,o=null;if(0!==a){if(o=l.value,!0!==r||null===o){var s=n+4*a,u=e.matrixWorldInverse;h.getNormalMatrix(u),(null===o||o.length<s)&&(o=new Float32Array(s));for(var p=0,d=n;p!==a;++p,d+=4)c.copy(t[p]).applyMatrix4(u,h),c.normal.toArray(o,d),o[d+3]=c.constant}l.value=o,l.needsUpdate=!0}return i.numPlanes=a,o}var i=this,n=null,r=0,a=!1,s=!1,c=new nt,h=new o,l={value:null,needsUpdate:!1};this.uniform=l,this.numPlanes=0,this.numIntersection=0,this.init=function(t,i,o){var s=0!==t.length||i||0!==r||a;return a=i,n=e(t,o,0),r=t.length,s},this.beginShadows=function(){s=!0,e(null)},this.endShadows=function(){s=!1,t()},this.setState=function(i,o,c,h,u,p){if(!a||null===i||0===i.length||s&&!c)s?e(null):t();else{var d=s?0:r,f=4*d,m=u.clippingState||null;l.value=m,m=e(i,h,f,p);for(var g=0;g!==f;++g)m[g]=n[g];u.clippingState=m,this.numIntersection=o?this.numPlanes:0,this.numPlanes+=d}}}function be(t,e){function i(i){var n;if(i===vo)return t.REPEAT;if(i===yo)return t.CLAMP_TO_EDGE;if(i===xo)return t.MIRRORED_REPEAT;if(i===bo)return t.NEAREST;if(i===_o)return t.NEAREST_MIPMAP_NEAREST;if(i===wo)return t.NEAREST_MIPMAP_LINEAR;if(i===Mo)return t.LINEAR;if(i===Eo)return t.LINEAR_MIPMAP_NEAREST;if(i===To)return t.LINEAR_MIPMAP_LINEAR;if(i===So)return t.UNSIGNED_BYTE;if(i===Do)return t.UNSIGNED_SHORT_4_4_4_4;if(i===Oo)return t.UNSIGNED_SHORT_5_5_5_1;if(i===No)return t.UNSIGNED_SHORT_5_6_5;if(i===Ao)return t.BYTE;if(i===Ro)return t.SHORT;if(i===Lo)return t.UNSIGNED_SHORT;if(i===Po)return t.INT;if(i===Co)return t.UNSIGNED_INT;if(i===Io)return t.FLOAT;if(i===Uo&&null!==(n=e.get(\"OES_texture_half_float\")))return n.HALF_FLOAT_OES;if(i===Bo)return t.ALPHA;if(i===zo)return t.RGB;if(i===Go)return t.RGBA;if(i===Ho)return t.LUMINANCE;if(i===Vo)return t.LUMINANCE_ALPHA;if(i===jo)return t.DEPTH_COMPONENT;if(i===Wo)return t.DEPTH_STENCIL;if(i===Ca)return t.FUNC_ADD;if(i===Ia)return t.FUNC_SUBTRACT;if(i===Ua)return t.FUNC_REVERSE_SUBTRACT;if(i===Na)return t.ZERO;if(i===Fa)return t.ONE;if(i===Ba)return t.SRC_COLOR;if(i===za)return t.ONE_MINUS_SRC_COLOR;if(i===Ga)return t.SRC_ALPHA;if(i===Ha)return t.ONE_MINUS_SRC_ALPHA;if(i===Va)return t.DST_ALPHA;if(i===ka)return t.ONE_MINUS_DST_ALPHA;if(i===ja)return t.DST_COLOR;if(i===Wa)return t.ONE_MINUS_DST_COLOR;if(i===Xa)return t.SRC_ALPHA_SATURATE;if((i===Xo||i===qo||i===Yo||i===Zo)&&null!==(n=e.get(\"WEBGL_compressed_texture_s3tc\"))){if(i===Xo)return n.COMPRESSED_RGB_S3TC_DXT1_EXT;if(i===qo)return n.COMPRESSED_RGBA_S3TC_DXT1_EXT;if(i===Yo)return n.COMPRESSED_RGBA_S3TC_DXT3_EXT;if(i===Zo)return n.COMPRESSED_RGBA_S3TC_DXT5_EXT}if((i===Jo||i===Qo||i===Ko||i===$o)&&null!==(n=e.get(\"WEBGL_compressed_texture_pvrtc\"))){if(i===Jo)return n.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;if(i===Qo)return n.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;if(i===Ko)return n.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;if(i===$o)return n.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG}if(i===ts&&null!==(n=e.get(\"WEBGL_compressed_texture_etc1\")))return n.COMPRESSED_RGB_ETC1_WEBGL;if((i===Da||i===Oa)&&null!==(n=e.get(\"EXT_blend_minmax\"))){if(i===Da)return n.MIN_EXT;if(i===Oa)return n.MAX_EXT}return i===Fo&&null!==(n=e.get(\"WEBGL_depth_texture\"))?n.UNSIGNED_INT_24_8_WEBGL:0}return{convert:i}}function _e(t){function e(){return null===tt?mt:1}function i(){Lt=new ye(At),Lt.get(\"WEBGL_depth_texture\"),Lt.get(\"OES_texture_float\"),Lt.get(\"OES_texture_float_linear\"),Lt.get(\"OES_texture_half_float\"),Lt.get(\"OES_texture_half_float_linear\"),Lt.get(\"OES_standard_derivatives\"),Lt.get(\"OES_element_index_uint\"),Lt.get(\"ANGLE_instanced_arrays\"),te=new be(At,Lt),Pt=new fe(At,Lt,t),Ct=new de(At,Lt,te),Ct.scissor(lt.copy(vt).multiplyScalar(mt)),Ct.viewport(ht.copy(gt).multiplyScalar(mt)),It=new pe,Ut=new ue(At,Lt,Ct,It,Pt,te,Tt),Dt=new ot(At),Ot=new Xt(At,Dt,Tt),Nt=new Zt(Ot,St),qt=new kt(At),zt=new le(K,Lt,Pt),Bt=new Yt,Gt=new Ht,Vt=new Ft(K,Ct,Ot,V),Jt=new Wt(At,Lt,St),Qt=new jt(At,Lt,St),Kt=new Z(K,At,Ct,Ut,Pt),$t=new Q(K,At,Ct,Ut,Pt),K.info.programs=zt.programs,K.context=At,K.capabilities=Pt,K.extensions=Lt,K.properties=It,K.renderLists=Gt,K.state=Ct}function r(t){t.preventDefault(),console.log(\"THREE.WebGLRenderer: Context Lost.\"),$=!0}function o(){console.log(\"THREE.WebGLRenderer: Context Restored.\"),$=!1,i()}function s(t){var e=t.target;e.removeEventListener(\"dispose\",s),h(e)}function h(t){l(t),It.remove(t)}function l(t){var e=It.get(t).program;t.program=void 0,void 0!==e&&zt.releaseProgram(e)}function p(t,e,i){t.render(function(t){K.renderBufferImmediate(t,e,i)})}function d(t,e,i,n){if(i&&i.isInstancedBufferGeometry&&null===Lt.get(\"ANGLE_instanced_arrays\"))return void console.error(\"THREE.WebGLRenderer.setupVertexAttributes: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.\");void 0===n&&(n=0),Ct.initAttributes();var r=i.attributes,a=e.getAttributes(),o=t.defaultAttributeValues;for(var s in a){var c=a[s];if(c>=0){var h=r[s];if(void 0!==h){var l=h.normalized,u=h.itemSize,p=Dt.get(h);if(void 0===p)continue;var d=p.buffer,f=p.type,m=p.bytesPerElement;if(h.isInterleavedBufferAttribute){var g=h.data,v=g.stride,y=h.offset;g&&g.isInstancedInterleavedBuffer?(Ct.enableAttributeAndDivisor(c,g.meshPerAttribute),void 0===i.maxInstancedCount&&(i.maxInstancedCount=g.meshPerAttribute*g.count)):Ct.enableAttribute(c),At.bindBuffer(At.ARRAY_BUFFER,d),At.vertexAttribPointer(c,u,f,l,v*m,(n*v+y)*m)}else h.isInstancedBufferAttribute?(Ct.enableAttributeAndDivisor(c,h.meshPerAttribute),void 0===i.maxInstancedCount&&(i.maxInstancedCount=h.meshPerAttribute*h.count)):Ct.enableAttribute(c),At.bindBuffer(At.ARRAY_BUFFER,d),At.vertexAttribPointer(c,u,f,l,0,n*u*m)}else if(void 0!==o){var x=o[s];if(void 0!==x)switch(x.length){case 2:At.vertexAttrib2fv(c,x);break;case 3:At.vertexAttrib3fv(c,x);break;case 4:At.vertexAttrib4fv(c,x);break;default:At.vertexAttrib1fv(c,x)}}}}Ct.disableUnusedAttributes()}function f(){if(!ne){var t=ee.getDevice();t&&t.isPresenting?t.requestAnimationFrame(m):window.requestAnimationFrame(m),ne=!0}}function m(t){null!==re&&re(t);var e=ee.getDevice();e&&e.isPresenting?e.requestAnimationFrame(m):window.requestAnimationFrame(m)}function g(t,e,i){if(!1!==t.visible){if(t.layers.test(e.layers))if(t.isLight)j.push(t),t.castShadow&&W.push(t);else if(t.isSprite)t.frustumCulled&&!xt.intersectsSprite(t)||Y.push(t);else if(t.isLensFlare)J.push(t);else if(t.isImmediateRenderObject)i&&Et.setFromMatrixPosition(t.matrixWorld).applyMatrix4(Mt),q.push(t,null,t.material,Et.z,null);else if((t.isMesh||t.isLine||t.isPoints)&&(t.isSkinnedMesh&&t.skeleton.update(),!t.frustumCulled||xt.intersectsObject(t))){i&&Et.setFromMatrixPosition(t.matrixWorld).applyMatrix4(Mt);var n=Nt.update(t),r=t.material;if(Array.isArray(r))for(var a=n.groups,o=0,s=a.length;o<s;o++){var c=a[o],h=r[c.materialIndex];h&&h.visible&&q.push(t,n,h,Et.z,c)}else r.visible&&q.push(t,n,r,Et.z,null)}for(var l=t.children,o=0,s=l.length;o<s;o++)g(l[o],e,i)}}function v(t,e,i,n){for(var r=0,a=t.length;r<a;r++){var o=t[r],s=o.object,c=o.geometry,h=void 0===n?o.material:n,l=o.group;if(i.isArrayCamera){ct=i;for(var u=i.cameras,p=0,d=u.length;p<d;p++){var f=u[p];if(s.layers.test(f.layers)){var m=f.bounds,g=m.x*dt,v=m.y*ft,x=m.z*dt,b=m.w*ft;Ct.viewport(ht.set(g,v,x,b).multiplyScalar(mt)),y(s,e,f,c,h,l)}}}else ct=null,y(s,e,i,c,h,l)}}function y(t,e,i,n,r,a){if(t.onBeforeRender(K,e,i,n,r,a),t.modelViewMatrix.multiplyMatrices(i.matrixWorldInverse,t.matrixWorld),t.normalMatrix.getNormalMatrix(t.modelViewMatrix),t.isImmediateRenderObject){Ct.setMaterial(r);var o=b(i,e.fog,r,t);nt=\"\",p(t,o,r)}else K.renderBufferDirect(i,e.fog,n,r,t,a);t.onAfterRender(K,e,i,n,r,a)}function x(t,e,i){var n=It.get(t),r=zt.getParameters(t,Bt.state,W,e,bt.numPlanes,bt.numIntersection,i),a=zt.getProgramCode(t,r),o=n.program,c=!0;if(void 0===o)t.addEventListener(\"dispose\",s);else if(o.code!==a)l(t);else{if(void 0!==r.shaderID)return;c=!1}if(c){if(r.shaderID){var h=Rs[r.shaderID];n.shader={name:t.type,uniforms:Ss.clone(h.uniforms),vertexShader:h.vertexShader,fragmentShader:h.fragmentShader}}else n.shader={name:t.type,uniforms:t.uniforms,vertexShader:t.vertexShader,fragmentShader:t.fragmentShader};t.onBeforeCompile(n.shader),o=zt.acquireProgram(t,n.shader,r,a),n.program=o,t.program=o}var u=o.getAttributes();if(t.morphTargets){t.numSupportedMorphTargets=0;for(var p=0;p<K.maxMorphTargets;p++)u[\"morphTarget\"+p]>=0&&t.numSupportedMorphTargets++}if(t.morphNormals){t.numSupportedMorphNormals=0;for(var p=0;p<K.maxMorphNormals;p++)u[\"morphNormal\"+p]>=0&&t.numSupportedMorphNormals++}var d=n.shader.uniforms;(t.isShaderMaterial||t.isRawShaderMaterial)&&!0!==t.clipping||(n.numClippingPlanes=bt.numPlanes,n.numIntersection=bt.numIntersection,d.clippingPlanes=bt.uniform),n.fog=e,n.lightsHash=Bt.state.hash,t.lights&&(d.ambientLightColor.value=Bt.state.ambient,d.directionalLights.value=Bt.state.directional,d.spotLights.value=Bt.state.spot,d.rectAreaLights.value=Bt.state.rectArea,d.pointLights.value=Bt.state.point,d.hemisphereLights.value=Bt.state.hemi,d.directionalShadowMap.value=Bt.state.directionalShadowMap,d.directionalShadowMatrix.value=Bt.state.directionalShadowMatrix,d.spotShadowMap.value=Bt.state.spotShadowMap,d.spotShadowMatrix.value=Bt.state.spotShadowMatrix,d.pointShadowMap.value=Bt.state.pointShadowMap,d.pointShadowMatrix.value=Bt.state.pointShadowMatrix);var f=n.program.getUniforms(),m=X.seqWithValue(f.seq,d);n.uniformsList=m}function b(t,e,i,n){pt=0;var r=It.get(i);if(_t&&(wt||t!==st)){var a=t===st&&i.id===it;bt.setState(i.clippingPlanes,i.clipIntersection,i.clipShadows,t,r,a)}!1===i.needsUpdate&&(void 0===r.program?i.needsUpdate=!0:i.fog&&r.fog!==e?i.needsUpdate=!0:i.lights&&r.lightsHash!==Bt.state.hash?i.needsUpdate=!0:void 0===r.numClippingPlanes||r.numClippingPlanes===bt.numPlanes&&r.numIntersection===bt.numIntersection||(i.needsUpdate=!0)),i.needsUpdate&&(x(i,e,n),i.needsUpdate=!1);var o=!1,s=!1,c=!1,h=r.program,l=h.getUniforms(),p=r.shader.uniforms;if(Ct.useProgram(h.program)&&(o=!0,s=!0,c=!0),i.id!==it&&(it=i.id,s=!0),o||t!==st){if(l.setValue(At,\"projectionMatrix\",t.projectionMatrix),Pt.logarithmicDepthBuffer&&l.setValue(At,\"logDepthBufFC\",2/(Math.log(t.far+1)/Math.LN2)),st!==(ct||t)&&(st=ct||t,s=!0,c=!0),i.isShaderMaterial||i.isMeshPhongMaterial||i.isMeshStandardMaterial||i.envMap){var d=l.map.cameraPosition;void 0!==d&&d.setValue(At,Et.setFromMatrixPosition(t.matrixWorld))}(i.isMeshPhongMaterial||i.isMeshLambertMaterial||i.isMeshBasicMaterial||i.isMeshStandardMaterial||i.isShaderMaterial||i.skinning)&&l.setValue(At,\"viewMatrix\",t.matrixWorldInverse)}if(i.skinning){l.setOptional(At,n,\"bindMatrix\"),l.setOptional(At,n,\"bindMatrixInverse\");var f=n.skeleton;if(f){var m=f.bones;if(Pt.floatVertexTextures){if(void 0===f.boneTexture){var g=Math.sqrt(4*m.length);g=ms.ceilPowerOfTwo(g),g=Math.max(g,4);var v=new Float32Array(g*g*4);v.set(f.boneMatrices);var y=new u(v,g,g,Go,Io);f.boneMatrices=v,f.boneTexture=y,f.boneTextureSize=g}l.setValue(At,\"boneTexture\",f.boneTexture),l.setValue(At,\"boneTextureSize\",f.boneTextureSize)}else l.setOptional(At,f,\"boneMatrices\")}}return s&&(l.setValue(At,\"toneMappingExposure\",K.toneMappingExposure),l.setValue(At,\"toneMappingWhitePoint\",K.toneMappingWhitePoint),i.lights&&D(p,c),e&&i.fog&&T(p,e),i.isMeshBasicMaterial?_(p,i):i.isMeshLambertMaterial?(_(p,i),S(p,i)):i.isMeshPhongMaterial?(_(p,i),i.isMeshToonMaterial?R(p,i):A(p,i)):i.isMeshStandardMaterial?(_(p,i),i.isMeshPhysicalMaterial?P(p,i):L(p,i)):i.isMeshDepthMaterial?(_(p,i),C(p,i)):i.isMeshDistanceMaterial?(_(p,i),I(p,i)):i.isMeshNormalMaterial?(_(p,i),U(p,i)):i.isLineBasicMaterial?(w(p,i),i.isLineDashedMaterial&&M(p,i)):i.isPointsMaterial?E(p,i):i.isShadowMaterial&&(p.color.value=i.color,p.opacity.value=i.opacity),void 0!==p.ltcMat&&(p.ltcMat.value=Ts.LTC_MAT_TEXTURE),void 0!==p.ltcMag&&(p.ltcMag.value=Ts.LTC_MAG_TEXTURE),X.upload(At,r.uniformsList,p,K)),l.setValue(At,\"modelViewMatrix\",n.modelViewMatrix),l.setValue(At,\"normalMatrix\",n.normalMatrix),l.setValue(At,\"modelMatrix\",n.matrixWorld),h}function _(t,e){t.opacity.value=e.opacity,e.color&&(t.diffuse.value=e.color),e.emissive&&t.emissive.value.copy(e.emissive).multiplyScalar(e.emissiveIntensity),e.map&&(t.map.value=e.map),e.alphaMap&&(t.alphaMap.value=e.alphaMap),e.specularMap&&(t.specularMap.value=e.specularMap),e.envMap&&(t.envMap.value=e.envMap,t.flipEnvMap.value=e.envMap&&e.envMap.isCubeTexture?-1:1,t.reflectivity.value=e.reflectivity,t.refractionRatio.value=e.refractionRatio),e.lightMap&&(t.lightMap.value=e.lightMap,t.lightMapIntensity.value=e.lightMapIntensity),e.aoMap&&(t.aoMap.value=e.aoMap,t.aoMapIntensity.value=e.aoMapIntensity);var i;if(e.map?i=e.map:e.specularMap?i=e.specularMap:e.displacementMap?i=e.displacementMap:e.normalMap?i=e.normalMap:e.bumpMap?i=e.bumpMap:e.roughnessMap?i=e.roughnessMap:e.metalnessMap?i=e.metalnessMap:e.alphaMap?i=e.alphaMap:e.emissiveMap&&(i=e.emissiveMap),void 0!==i){if(i.isWebGLRenderTarget&&(i=i.texture),!0===i.matrixAutoUpdate){var n=i.offset,r=i.repeat,a=i.rotation,o=i.center;i.matrix.setUvTransform(n.x,n.y,r.x,r.y,a,o.x,o.y)}t.uvTransform.value.copy(i.matrix)}}function w(t,e){t.diffuse.value=e.color,t.opacity.value=e.opacity}function M(t,e){t.dashSize.value=e.dashSize,t.totalSize.value=e.dashSize+e.gapSize,t.scale.value=e.scale}function E(t,e){if(t.diffuse.value=e.color,t.opacity.value=e.opacity,t.size.value=e.size*mt,t.scale.value=.5*ft,t.map.value=e.map,null!==e.map){if(!0===e.map.matrixAutoUpdate){var i=e.map.offset,n=e.map.repeat,r=e.map.rotation,a=e.map.center;e.map.matrix.setUvTransform(i.x,i.y,n.x,n.y,r,a.x,a.y)}t.uvTransform.value.copy(e.map.matrix)}}function T(t,e){t.fogColor.value=e.color,e.isFog?(t.fogNear.value=e.near,t.fogFar.value=e.far):e.isFogExp2&&(t.fogDensity.value=e.density)}function S(t,e){e.emissiveMap&&(t.emissiveMap.value=e.emissiveMap)}function A(t,e){t.specular.value=e.specular,t.shininess.value=Math.max(e.shininess,1e-4),e.emissiveMap&&(t.emissiveMap.value=e.emissiveMap),e.bumpMap&&(t.bumpMap.value=e.bumpMap,t.bumpScale.value=e.bumpScale),e.normalMap&&(t.normalMap.value=e.normalMap,t.normalScale.value.copy(e.normalScale)),e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias)}function R(t,e){A(t,e),e.gradientMap&&(t.gradientMap.value=e.gradientMap)}function L(t,e){t.roughness.value=e.roughness,t.metalness.value=e.metalness,e.roughnessMap&&(t.roughnessMap.value=e.roughnessMap),e.metalnessMap&&(t.metalnessMap.value=e.metalnessMap),e.emissiveMap&&(t.emissiveMap.value=e.emissiveMap),e.bumpMap&&(t.bumpMap.value=e.bumpMap,t.bumpScale.value=e.bumpScale),e.normalMap&&(t.normalMap.value=e.normalMap,t.normalScale.value.copy(e.normalScale)),e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias),e.envMap&&(t.envMapIntensity.value=e.envMapIntensity)}function P(t,e){t.clearCoat.value=e.clearCoat,t.clearCoatRoughness.value=e.clearCoatRoughness,L(t,e)}function C(t,e){e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias)}function I(t,e){e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias),t.referencePosition.value.copy(e.referencePosition),t.nearDistance.value=e.nearDistance,t.farDistance.value=e.farDistance}function U(t,e){e.bumpMap&&(t.bumpMap.value=e.bumpMap,t.bumpScale.value=e.bumpScale),e.normalMap&&(t.normalMap.value=e.normalMap,t.normalScale.value.copy(e.normalScale)),e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias)}function D(t,e){t.ambientLightColor.needsUpdate=e,t.directionalLights.needsUpdate=e,t.pointLights.needsUpdate=e,t.spotLights.needsUpdate=e,t.rectAreaLights.needsUpdate=e,t.hemisphereLights.needsUpdate=e}function O(){var t=pt;return t>=Pt.maxTextures&&console.warn(\"THREE.WebGLRenderer: Trying to use \"+t+\" texture units while this GPU supports only \"+Pt.maxTextures),pt+=1,t}console.log(\"THREE.WebGLRenderer\",ua),t=t||{};var N=void 0!==t.canvas?t.canvas:document.createElementNS(\"http://www.w3.org/1999/xhtml\",\"canvas\"),F=void 0!==t.context?t.context:null,B=void 0!==t.alpha&&t.alpha,z=void 0===t.depth||t.depth,G=void 0===t.stencil||t.stencil,H=void 0!==t.antialias&&t.antialias,V=void 0===t.premultipliedAlpha||t.premultipliedAlpha,k=void 0!==t.preserveDrawingBuffer&&t.preserveDrawingBuffer,j=[],W=[],q=null,Y=[],J=[];this.domElement=N,this.context=null,this.autoClear=!0,this.autoClearColor=!0,this.autoClearDepth=!0,this.autoClearStencil=!0,this.sortObjects=!0,this.clippingPlanes=[],this.localClippingEnabled=!1,this.gammaFactor=2,this.gammaInput=!1,this.gammaOutput=!1,this.physicallyCorrectLights=!1,this.toneMapping=ao,this.toneMappingExposure=1,this.toneMappingWhitePoint=1,this.maxMorphTargets=8,this.maxMorphNormals=4;var K=this,$=!1,tt=null,et=null,it=-1,nt=\"\",st=null,ct=null,ht=new c,lt=new c,ut=null,pt=0,dt=N.width,ft=N.height,mt=1,gt=new c(0,0,dt,ft),vt=new c(0,0,dt,ft),yt=!1,xt=new rt,bt=new xe,_t=!1,wt=!1,Mt=new n,Et=new a,Tt={geometries:0,textures:0},St={frame:0,calls:0,vertices:0,faces:0,points:0};this.info={render:St,memory:Tt,programs:null};var At;try{var Rt={alpha:B,depth:z,stencil:G,antialias:H,premultipliedAlpha:V,preserveDrawingBuffer:k};if(null===(At=F||N.getContext(\"webgl\",Rt)||N.getContext(\"experimental-webgl\",Rt)))throw null!==N.getContext(\"webgl\")?\"Error creating WebGL context with your selected attributes.\":\"Error creating WebGL context.\";void 0===At.getShaderPrecisionFormat&&(At.getShaderPrecisionFormat=function(){return{rangeMin:1,rangeMax:1,precision:1}}),N.addEventListener(\"webglcontextlost\",r,!1),N.addEventListener(\"webglcontextrestored\",o,!1)}catch(t){console.error(\"THREE.WebGLRenderer: \"+t)}var Lt,Pt,Ct,It,Ut,Dt,Ot,Nt,Bt,zt,Gt,Vt,qt,Jt,Qt,Kt,$t,te;i();var ee=new ve(K);this.vr=ee;var ie=new at(K,Nt,Pt.maxTextureSize);this.shadowMap=ie,this.getContext=function(){return At},this.getContextAttributes=function(){\nreturn At.getContextAttributes()},this.forceContextLoss=function(){var t=Lt.get(\"WEBGL_lose_context\");t&&t.loseContext()},this.forceContextRestore=function(){var t=Lt.get(\"WEBGL_lose_context\");t&&t.restoreContext()},this.getPixelRatio=function(){return mt},this.setPixelRatio=function(t){void 0!==t&&(mt=t,this.setSize(dt,ft,!1))},this.getSize=function(){return{width:dt,height:ft}},this.setSize=function(t,e,i){var n=ee.getDevice();if(n&&n.isPresenting)return void console.warn(\"THREE.WebGLRenderer: Can't change size while VR device is presenting.\");dt=t,ft=e,N.width=t*mt,N.height=e*mt,!1!==i&&(N.style.width=t+\"px\",N.style.height=e+\"px\"),this.setViewport(0,0,t,e)},this.getDrawingBufferSize=function(){return{width:dt*mt,height:ft*mt}},this.setDrawingBufferSize=function(t,e,i){dt=t,ft=e,mt=i,N.width=t*i,N.height=e*i,this.setViewport(0,0,t,e)},this.setViewport=function(t,e,i,n){gt.set(t,ft-e-n,i,n),Ct.viewport(ht.copy(gt).multiplyScalar(mt))},this.setScissor=function(t,e,i,n){vt.set(t,ft-e-n,i,n),Ct.scissor(lt.copy(vt).multiplyScalar(mt))},this.setScissorTest=function(t){Ct.setScissorTest(yt=t)},this.getClearColor=function(){return Vt.getClearColor()},this.setClearColor=function(){Vt.setClearColor.apply(Vt,arguments)},this.getClearAlpha=function(){return Vt.getClearAlpha()},this.setClearAlpha=function(){Vt.setClearAlpha.apply(Vt,arguments)},this.clear=function(t,e,i){var n=0;(void 0===t||t)&&(n|=At.COLOR_BUFFER_BIT),(void 0===e||e)&&(n|=At.DEPTH_BUFFER_BIT),(void 0===i||i)&&(n|=At.STENCIL_BUFFER_BIT),At.clear(n)},this.clearColor=function(){this.clear(!0,!1,!1)},this.clearDepth=function(){this.clear(!1,!0,!1)},this.clearStencil=function(){this.clear(!1,!1,!0)},this.clearTarget=function(t,e,i,n){this.setRenderTarget(t),this.clear(e,i,n)},this.dispose=function(){N.removeEventListener(\"webglcontextlost\",r,!1),N.removeEventListener(\"webglcontextrestored\",o,!1),Gt.dispose(),ee.dispose()},this.renderBufferImmediate=function(t,e,i){Ct.initAttributes();var n=It.get(t);t.hasPositions&&!n.position&&(n.position=At.createBuffer()),t.hasNormals&&!n.normal&&(n.normal=At.createBuffer()),t.hasUvs&&!n.uv&&(n.uv=At.createBuffer()),t.hasColors&&!n.color&&(n.color=At.createBuffer());var r=e.getAttributes();if(t.hasPositions&&(At.bindBuffer(At.ARRAY_BUFFER,n.position),At.bufferData(At.ARRAY_BUFFER,t.positionArray,At.DYNAMIC_DRAW),Ct.enableAttribute(r.position),At.vertexAttribPointer(r.position,3,At.FLOAT,!1,0,0)),t.hasNormals){if(At.bindBuffer(At.ARRAY_BUFFER,n.normal),!i.isMeshPhongMaterial&&!i.isMeshStandardMaterial&&!i.isMeshNormalMaterial&&!0===i.flatShading)for(var a=0,o=3*t.count;a<o;a+=9){var s=t.normalArray,c=(s[a+0]+s[a+3]+s[a+6])/3,h=(s[a+1]+s[a+4]+s[a+7])/3,l=(s[a+2]+s[a+5]+s[a+8])/3;s[a+0]=c,s[a+1]=h,s[a+2]=l,s[a+3]=c,s[a+4]=h,s[a+5]=l,s[a+6]=c,s[a+7]=h,s[a+8]=l}At.bufferData(At.ARRAY_BUFFER,t.normalArray,At.DYNAMIC_DRAW),Ct.enableAttribute(r.normal),At.vertexAttribPointer(r.normal,3,At.FLOAT,!1,0,0)}t.hasUvs&&i.map&&(At.bindBuffer(At.ARRAY_BUFFER,n.uv),At.bufferData(At.ARRAY_BUFFER,t.uvArray,At.DYNAMIC_DRAW),Ct.enableAttribute(r.uv),At.vertexAttribPointer(r.uv,2,At.FLOAT,!1,0,0)),t.hasColors&&i.vertexColors!==wa&&(At.bindBuffer(At.ARRAY_BUFFER,n.color),At.bufferData(At.ARRAY_BUFFER,t.colorArray,At.DYNAMIC_DRAW),Ct.enableAttribute(r.color),At.vertexAttribPointer(r.color,3,At.FLOAT,!1,0,0)),Ct.disableUnusedAttributes(),At.drawArrays(At.TRIANGLES,0,t.count),t.count=0},this.renderBufferDirect=function(t,i,n,r,a,o){Ct.setMaterial(r);var s=b(t,i,r,a),c=n.id+\"_\"+s.id+\"_\"+(!0===r.wireframe),h=!1;c!==nt&&(nt=c,h=!0),a.morphTargetInfluences&&(qt.update(a,n,r,s),h=!0);var l=n.index,u=n.attributes.position,p=1;!0===r.wireframe&&(l=Ot.getWireframeAttribute(n),p=2);var f,m=Jt;null!==l&&(f=Dt.get(l),m=Qt,m.setIndex(f)),h&&(d(r,s,n),null!==l&&At.bindBuffer(At.ELEMENT_ARRAY_BUFFER,f.buffer));var g=0;null!==l?g=l.count:void 0!==u&&(g=u.count);var v=n.drawRange.start*p,y=n.drawRange.count*p,x=null!==o?o.start*p:0,_=null!==o?o.count*p:1/0,w=Math.max(v,x),M=Math.min(g,v+y,x+_)-1,E=Math.max(0,M-w+1);if(0!==E){if(a.isMesh)if(!0===r.wireframe)Ct.setLineWidth(r.wireframeLinewidth*e()),m.setMode(At.LINES);else switch(a.drawMode){case ns:m.setMode(At.TRIANGLES);break;case rs:m.setMode(At.TRIANGLE_STRIP);break;case as:m.setMode(At.TRIANGLE_FAN)}else if(a.isLine){var T=r.linewidth;void 0===T&&(T=1),Ct.setLineWidth(T*e()),a.isLineSegments?m.setMode(At.LINES):a.isLineLoop?m.setMode(At.LINE_LOOP):m.setMode(At.LINE_STRIP)}else a.isPoints&&m.setMode(At.POINTS);n&&n.isInstancedBufferGeometry?n.maxInstancedCount>0&&m.renderInstances(n,w,E):m.render(w,E)}},this.compile=function(t,e){j.length=0,W.length=0,t.traverse(function(t){t.isLight&&(j.push(t),t.castShadow&&W.push(t))}),Bt.setup(j,W,e),t.traverse(function(e){if(e.material)if(Array.isArray(e.material))for(var i=0;i<e.material.length;i++)x(e.material[i],t.fog,e);else x(e.material,t.fog,e)})};var ne=!1,re=null;this.animate=function(t){re=t,f()},this.render=function(t,e,i,n){if(!e||!e.isCamera)return void console.error(\"THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.\");if(!$){nt=\"\",it=-1,st=null,!0===t.autoUpdate&&t.updateMatrixWorld(),null===e.parent&&e.updateMatrixWorld(),ee.enabled&&(e=ee.getCamera(e)),Mt.multiplyMatrices(e.projectionMatrix,e.matrixWorldInverse),xt.setFromMatrix(Mt),j.length=0,W.length=0,Y.length=0,J.length=0,wt=this.localClippingEnabled,_t=bt.init(this.clippingPlanes,wt,e),q=Gt.get(t,e),q.init(),g(t,e,K.sortObjects),!0===K.sortObjects&&q.sort(),_t&&bt.beginShadows(),ie.render(W,t,e),Bt.setup(j,W,e),_t&&bt.endShadows(),St.frame++,St.calls=0,St.vertices=0,St.faces=0,St.points=0,void 0===i&&(i=null),this.setRenderTarget(i),Vt.render(q,t,e,n);var r=q.opaque,a=q.transparent;if(t.overrideMaterial){var o=t.overrideMaterial;r.length&&v(r,t,e,o),a.length&&v(a,t,e,o)}else r.length&&v(r,t,e),a.length&&v(a,t,e);$t.render(Y,t,e),Kt.render(J,t,e,ht),i&&Ut.updateRenderTargetMipmap(i),Ct.buffers.depth.setTest(!0),Ct.buffers.depth.setMask(!0),Ct.buffers.color.setMask(!0),Ct.setPolygonOffset(!1),ee.enabled&&ee.submitFrame()}},this.setFaceCulling=function(t,e){Ct.setCullFace(t),Ct.setFlipSided(e===ga)},this.allocTextureUnit=O,this.setTexture2D=function(){var t=!1;return function(e,i){e&&e.isWebGLRenderTarget&&(t||(console.warn(\"THREE.WebGLRenderer.setTexture2D: don't use render targets as textures. 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if(t&&t.isBufferGeometry){var y,x,b,_,w,M,E,T;if(u=new a,null!==t.index){for(y=t.attributes.position,x=t.index,b=t.groups,0===b.length&&(b=[{start:0,count:x.count,materialIndex:0}]),r=0,o=b.length;r<o;++r)for(_=b[r],w=_.start,M=_.count,e=w,n=w+M;e<n;e+=3)for(i=0;i<3;i++)c=x.getX(e+i),h=x.getX(e+(i+1)%3),d[0]=Math.min(c,h),d[1]=Math.max(c,h),l=d[0]+\",\"+d[1],void 0===f[l]&&(f[l]={index1:d[0],index2:d[1]});for(l in f)s=f[l],u.fromBufferAttribute(y,s.index1),p.push(u.x,u.y,u.z),u.fromBufferAttribute(y,s.index2),p.push(u.x,u.y,u.z)}else for(y=t.attributes.position,e=0,n=y.count/3;e<n;e++)for(i=0;i<3;i++)E=3*e+i,u.fromBufferAttribute(y,E),p.push(u.x,u.y,u.z),T=3*e+(i+1)%3,u.fromBufferAttribute(y,T),p.push(u.x,u.y,u.z)}this.addAttribute(\"position\",new wt(p,3))}function ke(t,e,i){dt.call(this),this.type=\"ParametricGeometry\",this.parameters={func:t,slices:e,stacks:i},this.fromBufferGeometry(new je(t,e,i)),this.mergeVertices()}function je(t,e,i){St.call(this),this.type=\"ParametricBufferGeometry\",this.parameters={func:t,slices:e,stacks:i};var n,r,o=[],s=[],c=[],h=[],l=new a,u=new a,p=new a,d=new a,f=new a,m=e+1;for(n=0;n<=i;n++){var g=n/i;for(r=0;r<=e;r++){var v=r/e;u=t(v,g,u),s.push(u.x,u.y,u.z),v-1e-5>=0?(p=t(v-1e-5,g,p),d.subVectors(u,p)):(p=t(v+1e-5,g,p),d.subVectors(p,u)),g-1e-5>=0?(p=t(v,g-1e-5,p),f.subVectors(u,p)):(p=t(v,g+1e-5,p),f.subVectors(p,u)),l.crossVectors(d,f).normalize(),c.push(l.x,l.y,l.z),h.push(v,g)}}for(n=0;n<i;n++)for(r=0;r<e;r++){var y=n*m+r,x=n*m+r+1,b=(n+1)*m+r+1,_=(n+1)*m+r;o.push(y,x,_),o.push(x,b,_)}this.setIndex(o),this.addAttribute(\"position\",new wt(s,3)),this.addAttribute(\"normal\",new wt(c,3)),this.addAttribute(\"uv\",new wt(h,2))}function We(t,e,i,n){dt.call(this),this.type=\"PolyhedronGeometry\",this.parameters={vertices:t,indices:e,radius:i,detail:n},this.fromBufferGeometry(new Xe(t,e,i,n)),this.mergeVertices()}function Xe(t,e,n,r){function o(t,e,i,n){var 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a=l.normals[i],o=l.binormals[i];for(p=0;p<=r;p++){var s=p/r*Math.PI*2,c=Math.sin(s),h=-Math.cos(s);f.x=h*a.x+c*o.x,f.y=h*a.y+c*o.y,f.z=h*a.z+c*o.z,f.normalize(),y.push(f.x,f.y,f.z),d.x=g.x+n*f.x,d.y=g.y+n*f.y,d.z=g.z+n*f.z,v.push(d.x,d.y,d.z)}}function c(){for(p=1;p<=e;p++)for(u=1;u<=r;u++){var t=(r+1)*(p-1)+(u-1),i=(r+1)*p+(u-1),n=(r+1)*p+u,a=(r+1)*(p-1)+u;b.push(t,i,a),b.push(i,n,a)}}function h(){for(u=0;u<=e;u++)for(p=0;p<=r;p++)m.x=u/e,m.y=p/r,x.push(m.x,m.y)}St.call(this),this.type=\"TubeBufferGeometry\",this.parameters={path:t,tubularSegments:e,radius:n,radialSegments:r,closed:o},e=e||64,n=n||1,r=r||8,o=o||!1;var l=t.computeFrenetFrames(e,o);this.tangents=l.tangents,this.normals=l.normals,this.binormals=l.binormals;var u,p,d=new a,f=new a,m=new i,g=new a,v=[],y=[],x=[],b=[];!function(){for(u=0;u<e;u++)s(u);s(!1===o?e:0),h(),c()}(),this.setIndex(b),this.addAttribute(\"position\",new wt(v,3)),this.addAttribute(\"normal\",new wt(y,3)),this.addAttribute(\"uv\",new wt(x,2))}function ni(t,e,i,n,r,a,o){dt.call(this),this.type=\"TorusKnotGeometry\",this.parameters={radius:t,tube:e,tubularSegments:i,radialSegments:n,p:r,q:a},void 0!==o&&console.warn(\"THREE.TorusKnotGeometry: heightScale has been deprecated. 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T=(n+1)*(h-1)+(c-1),S=(n+1)*h+(c-1),A=(n+1)*h+c,R=(n+1)*(h-1)+c;l.push(T,S,R),l.push(S,A,R)}this.setIndex(l),this.addAttribute(\"position\",new wt(u,3)),this.addAttribute(\"normal\",new wt(p,3)),this.addAttribute(\"uv\",new wt(d,2))}function ai(t,e,i,n,r){dt.call(this),this.type=\"TorusGeometry\",this.parameters={radius:t,tube:e,radialSegments:i,tubularSegments:n,arc:r},this.fromBufferGeometry(new oi(t,e,i,n,r)),this.mergeVertices()}function oi(t,e,i,n,r){St.call(this),this.type=\"TorusBufferGeometry\",this.parameters={radius:t,tube:e,radialSegments:i,tubularSegments:n,arc:r},t=t||1,e=e||.4,i=Math.floor(i)||8,n=Math.floor(n)||6,r=r||2*Math.PI;var o,s,c=[],h=[],l=[],u=[],p=new a,d=new a,f=new a;for(o=0;o<=i;o++)for(s=0;s<=n;s++){var m=s/n*r,g=o/i*Math.PI*2;d.x=(t+e*Math.cos(g))*Math.cos(m),d.y=(t+e*Math.cos(g))*Math.sin(m),d.z=e*Math.sin(g),h.push(d.x,d.y,d.z),p.x=t*Math.cos(m),p.y=t*Math.sin(m),f.subVectors(d,p).normalize(),l.push(f.x,f.y,f.z),u.push(s/n),u.push(o/i)}for(o=1;o<=i;o++)for(s=1;s<=n;s++){var v=(n+1)*o+s-1,y=(n+1)*(o-1)+s-1,x=(n+1)*(o-1)+s,b=(n+1)*o+s;c.push(v,y,b),c.push(y,x,b)}this.setIndex(c),this.addAttribute(\"position\",new wt(h,3)),this.addAttribute(\"normal\",new wt(l,3)),this.addAttribute(\"uv\",new wt(u,2))}function si(t,e){dt.call(this),this.type=\"ExtrudeGeometry\",this.parameters={shapes:t,options:e},this.fromBufferGeometry(new ci(t,e)),this.mergeVertices()}function ci(t,e){void 0!==t&&(St.call(this),this.type=\"ExtrudeBufferGeometry\",t=Array.isArray(t)?t:[t],this.addShapeList(t,e),this.computeVertexNormals())}function hi(t,e){dt.call(this),this.type=\"TextGeometry\",this.parameters={text:t,parameters:e},this.fromBufferGeometry(new li(t,e)),this.mergeVertices()}function li(t,e){e=e||{};var i=e.font;if(!i||!i.isFont)return console.error(\"THREE.TextGeometry: font parameter is not an instance of THREE.Font.\"),new dt;var n=i.generateShapes(t,e.size,e.curveSegments);e.amount=void 0!==e.height?e.height:50,void 0===e.bevelThickness&&(e.bevelThickness=10),void 0===e.bevelSize&&(e.bevelSize=8),void 0===e.bevelEnabled&&(e.bevelEnabled=!1),ci.call(this,n,e),this.type=\"TextBufferGeometry\"}function ui(t,e,i,n,r,a,o){dt.call(this),this.type=\"SphereGeometry\",this.parameters={radius:t,widthSegments:e,heightSegments:i,phiStart:n,phiLength:r,thetaStart:a,thetaLength:o},this.fromBufferGeometry(new pi(t,e,i,n,r,a,o)),this.mergeVertices()}function pi(t,e,i,n,r,o,s){St.call(this),this.type=\"SphereBufferGeometry\",this.parameters={radius:t,widthSegments:e,heightSegments:i,phiStart:n,phiLength:r,thetaStart:o,thetaLength:s},t=t||1,e=Math.max(3,Math.floor(e)||8),i=Math.max(2,Math.floor(i)||6),n=void 0!==n?n:0,r=void 0!==r?r:2*Math.PI,o=void 0!==o?o:0,s=void 0!==s?s:Math.PI;var c,h,l=o+s,u=0,p=[],d=new a,f=new a,m=[],g=[],v=[],y=[];for(h=0;h<=i;h++){var x=[],b=h/i;for(c=0;c<=e;c++){var _=c/e;d.x=-t*Math.cos(n+_*r)*Math.sin(o+b*s),d.y=t*Math.cos(o+b*s),d.z=t*Math.sin(n+_*r)*Math.sin(o+b*s),g.push(d.x,d.y,d.z),f.set(d.x,d.y,d.z).normalize(),v.push(f.x,f.y,f.z),y.push(_,1-b),x.push(u++)}p.push(x)}for(h=0;h<i;h++)for(c=0;c<e;c++){var w=p[h][c+1],M=p[h][c],E=p[h+1][c],T=p[h+1][c+1];(0!==h||o>0)&&m.push(w,M,T),(h!==i-1||l<Math.PI)&&m.push(M,E,T)}this.setIndex(m),this.addAttribute(\"position\",new wt(g,3)),this.addAttribute(\"normal\",new wt(v,3)),this.addAttribute(\"uv\",new wt(y,2))}function di(t,e,i,n,r,a){dt.call(this),this.type=\"RingGeometry\",this.parameters={innerRadius:t,outerRadius:e,thetaSegments:i,phiSegments:n,thetaStart:r,thetaLength:a},this.fromBufferGeometry(new fi(t,e,i,n,r,a)),this.mergeVertices()}function fi(t,e,n,r,o,s){St.call(this),this.type=\"RingBufferGeometry\",this.parameters={innerRadius:t,outerRadius:e,thetaSegments:n,phiSegments:r,thetaStart:o,thetaLength:s},t=t||.5,e=e||1,o=void 0!==o?o:0,s=void 0!==s?s:2*Math.PI,n=void 0!==n?Math.max(3,n):8,r=void 0!==r?Math.max(1,r):1;var c,h,l,u=[],p=[],d=[],f=[],m=t,g=(e-t)/r,v=new a,y=new i;for(h=0;h<=r;h++){for(l=0;l<=n;l++)c=o+l/n*s,v.x=m*Math.cos(c),v.y=m*Math.sin(c),p.push(v.x,v.y,v.z),d.push(0,0,1),y.x=(v.x/e+1)/2,y.y=(v.y/e+1)/2,f.push(y.x,y.y);m+=g}for(h=0;h<r;h++){var x=h*(n+1);for(l=0;l<n;l++){c=l+x;var b=c,_=c+n+1,w=c+n+2,M=c+1;u.push(b,_,M),u.push(_,w,M)}}this.setIndex(u),this.addAttribute(\"position\",new wt(p,3)),this.addAttribute(\"normal\",new wt(d,3)),this.addAttribute(\"uv\",new wt(f,2))}function mi(t,e,i,n){dt.call(this),this.type=\"LatheGeometry\",this.parameters={points:t,segments:e,phiStart:i,phiLength:n},this.fromBufferGeometry(new gi(t,e,i,n)),this.mergeVertices()}function gi(t,e,n,r){St.call(this),this.type=\"LatheBufferGeometry\",this.parameters={points:t,segments:e,phiStart:n,phiLength:r},e=Math.floor(e)||12,n=n||0,r=r||2*Math.PI,r=ms.clamp(r,0,2*Math.PI);var o,s,c,h=[],l=[],u=[],p=1/e,d=new a,f=new i;for(s=0;s<=e;s++){var m=n+s*p*r,g=Math.sin(m),v=Math.cos(m);for(c=0;c<=t.length-1;c++)d.x=t[c].x*g,d.y=t[c].y,d.z=t[c].x*v,l.push(d.x,d.y,d.z),f.x=s/e,f.y=c/(t.length-1),u.push(f.x,f.y)}for(s=0;s<e;s++)for(c=0;c<t.length-1;c++){o=c+s*t.length;var y=o,x=o+t.length,b=o+t.length+1,_=o+1;h.push(y,x,_),h.push(x,b,_)}if(this.setIndex(h),this.addAttribute(\"position\",new wt(l,3)),this.addAttribute(\"uv\",new wt(u,2)),this.computeVertexNormals(),r===2*Math.PI){var w=this.attributes.normal.array,M=new a,E=new a,T=new a;for(o=e*t.length*3,s=0,c=0;s<t.length;s++,c+=3)M.x=w[c+0],M.y=w[c+1],M.z=w[c+2],E.x=w[o+c+0],E.y=w[o+c+1],E.z=w[o+c+2],T.addVectors(M,E).normalize(),w[c+0]=w[o+c+0]=T.x,w[c+1]=w[o+c+1]=T.y,w[c+2]=w[o+c+2]=T.z}}function vi(t,e){dt.call(this),this.type=\"ShapeGeometry\",\"object\"==typeof e&&(console.warn(\"THREE.ShapeGeometry: Options parameter has been removed.\"),e=e.curveSegments),this.parameters={shapes:t,curveSegments:e},this.fromBufferGeometry(new yi(t,e)),this.mergeVertices()}function yi(t,e){function i(t){var i,s,h,l=r.length/3,u=t.extractPoints(e),p=u.shape,d=u.holes;if(!1===Ds.isClockWise(p))for(p=p.reverse(),i=0,s=d.length;i<s;i++)h=d[i],!0===Ds.isClockWise(h)&&(d[i]=h.reverse());var f=Ds.triangulateShape(p,d);for(i=0,s=d.length;i<s;i++)h=d[i],p=p.concat(h);for(i=0,s=p.length;i<s;i++){var m=p[i];r.push(m.x,m.y,0),a.push(0,0,1),o.push(m.x,m.y)}for(i=0,s=f.length;i<s;i++){var g=f[i],v=g[0]+l,y=g[1]+l,x=g[2]+l;n.push(v,y,x),c+=3}}St.call(this),this.type=\"ShapeBufferGeometry\",this.parameters={shapes:t,curveSegments:e},e=e||12;var n=[],r=[],a=[],o=[],s=0,c=0;if(!1===Array.isArray(t))i(t);else for(var h=0;h<t.length;h++)i(t[h]),this.addGroup(s,c,h),s+=c,c=0;this.setIndex(n),this.addAttribute(\"position\",new wt(r,3)),this.addAttribute(\"normal\",new wt(a,3)),this.addAttribute(\"uv\",new wt(o,2))}function xi(t,e){St.call(this),this.type=\"EdgesGeometry\",this.parameters={thresholdAngle:e},e=void 0!==e?e:1;var i,n,r,a,o=[],s=Math.cos(ms.DEG2RAD*e),c=[0,0],h={},l=[\"a\",\"b\",\"c\"];t.isBufferGeometry?(a=new dt,a.fromBufferGeometry(t)):a=t.clone(),a.mergeVertices(),a.computeFaceNormals();for(var u=a.vertices,p=a.faces,d=0,f=p.length;d<f;d++)for(var m=p[d],g=0;g<3;g++)i=m[l[g]],n=m[l[(g+1)%3]],c[0]=Math.min(i,n),c[1]=Math.max(i,n),r=c[0]+\",\"+c[1],void 0===h[r]?h[r]={index1:c[0],index2:c[1],face1:d,face2:void 0}:h[r].face2=d;for(r in h){var v=h[r];if(void 0===v.face2||p[v.face1].normal.dot(p[v.face2].normal)<=s){var y=u[v.index1];o.push(y.x,y.y,y.z),y=u[v.index2],o.push(y.x,y.y,y.z)}}this.addAttribute(\"position\",new wt(o,3))}function bi(t,e,i,n,r,a,o,s){dt.call(this),this.type=\"CylinderGeometry\",this.parameters={radiusTop:t,radiusBottom:e,height:i,radialSegments:n,heightSegments:r,openEnded:a,thetaStart:o,thetaLength:s},this.fromBufferGeometry(new _i(t,e,i,n,r,a,o,s)),this.mergeVertices()}function _i(t,e,n,r,o,s,c,h){function l(n){var o,s,l,v=new i,b=new a,_=0,w=!0===n?t:e,M=!0===n?1:-1;for(s=g,o=1;o<=r;o++)d.push(0,y*M,0),f.push(0,M,0),m.push(.5,.5),g++;for(l=g,o=0;o<=r;o++){var E=o/r,T=E*h+c,S=Math.cos(T),A=Math.sin(T);b.x=w*A,b.y=y*M,b.z=w*S,d.push(b.x,b.y,b.z),f.push(0,M,0),v.x=.5*S+.5,v.y=.5*A*M+.5,m.push(v.x,v.y),g++}for(o=0;o<r;o++){var R=s+o,L=l+o;!0===n?p.push(L,L+1,R):p.push(L+1,L,R),_+=3}u.addGroup(x,_,!0===n?1:2),x+=_}St.call(this),this.type=\"CylinderBufferGeometry\",this.parameters={radiusTop:t,radiusBottom:e,height:n,radialSegments:r,heightSegments:o,openEnded:s,thetaStart:c,thetaLength:h};var u=this;t=void 0!==t?t:1,e=void 0!==e?e:1,n=n||1,r=Math.floor(r)||8,o=Math.floor(o)||1,s=void 0!==s&&s,c=void 0!==c?c:0,h=void 0!==h?h:2*Math.PI;var p=[],d=[],f=[],m=[],g=0,v=[],y=n/2,x=0;!function(){var i,s,l=new a,b=new a,_=0,w=(e-t)/n;for(s=0;s<=o;s++){var M=[],E=s/o,T=E*(e-t)+t;for(i=0;i<=r;i++){var S=i/r,A=S*h+c,R=Math.sin(A),L=Math.cos(A);b.x=T*R,b.y=-E*n+y,b.z=T*L,d.push(b.x,b.y,b.z),l.set(R,w,L).normalize(),f.push(l.x,l.y,l.z),m.push(S,1-E),M.push(g++)}v.push(M)}for(i=0;i<r;i++)for(s=0;s<o;s++){var P=v[s][i],C=v[s+1][i],I=v[s+1][i+1],U=v[s][i+1];p.push(P,C,U),p.push(C,I,U),_+=6}u.addGroup(x,_,0),x+=_}(),!1===s&&(t>0&&l(!0),e>0&&l(!1)),this.setIndex(p),this.addAttribute(\"position\",new wt(d,3)),this.addAttribute(\"normal\",new wt(f,3)),this.addAttribute(\"uv\",new wt(m,2))}function wi(t,e,i,n,r,a,o){bi.call(this,0,t,e,i,n,r,a,o),this.type=\"ConeGeometry\",this.parameters={radius:t,height:e,radialSegments:i,heightSegments:n,openEnded:r,thetaStart:a,thetaLength:o}}function Mi(t,e,i,n,r,a,o){_i.call(this,0,t,e,i,n,r,a,o),this.type=\"ConeBufferGeometry\",this.parameters={radius:t,height:e,radialSegments:i,heightSegments:n,openEnded:r,thetaStart:a,thetaLength:o}}function Ei(t,e,i,n){dt.call(this),this.type=\"CircleGeometry\",this.parameters={radius:t,segments:e,thetaStart:i,thetaLength:n},this.fromBufferGeometry(new Ti(t,e,i,n)),this.mergeVertices()}function Ti(t,e,n,r){St.call(this),this.type=\"CircleBufferGeometry\",this.parameters={radius:t,segments:e,thetaStart:n,thetaLength:r},t=t||1,e=void 0!==e?Math.max(3,e):8,n=void 0!==n?n:0,r=void 0!==r?r:2*Math.PI;var o,s,c=[],h=[],l=[],u=[],p=new a,d=new i;for(h.push(0,0,0),l.push(0,0,1),u.push(.5,.5),s=0,o=3;s<=e;s++,o+=3){var f=n+s/e*r;p.x=t*Math.cos(f),p.y=t*Math.sin(f),h.push(p.x,p.y,p.z),l.push(0,0,1),d.x=(h[o]/t+1)/2,d.y=(h[o+1]/t+1)/2,u.push(d.x,d.y)}for(o=1;o<=e;o++)c.push(o,o+1,0);this.setIndex(c),this.addAttribute(\"position\",new wt(h,3)),this.addAttribute(\"normal\",new wt(l,3)),this.addAttribute(\"uv\",new wt(u,2))}function Si(t){K.call(this),this.type=\"ShadowMaterial\",this.color=new q(0),this.opacity=1,this.lights=!0,this.transparent=!0,this.setValues(t)}function Ai(t){It.call(this,t),this.type=\"RawShaderMaterial\"}function Ri(t){K.call(this),this.defines={STANDARD:\"\"},this.type=\"MeshStandardMaterial\",this.color=new q(16777215),this.roughness=.5,this.metalness=.5,this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new q(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalScale=new i(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.roughnessMap=null,this.metalnessMap=null,this.alphaMap=null,this.envMap=null,this.envMapIntensity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap=\"round\",this.wireframeLinejoin=\"round\",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.setValues(t)}\nfunction Li(t){Ri.call(this),this.defines={PHYSICAL:\"\"},this.type=\"MeshPhysicalMaterial\",this.reflectivity=.5,this.clearCoat=0,this.clearCoatRoughness=0,this.setValues(t)}function Pi(t){K.call(this),this.type=\"MeshPhongMaterial\",this.color=new q(16777215),this.specular=new q(1118481),this.shininess=30,this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new q(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalScale=new 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Math.sqrt(this.distanceToSquared(t))},distanceToSquared:function(t){var e=this.x-t.x,i=this.y-t.y;return e*e+i*i},manhattanDistanceTo:function(t){return Math.abs(this.x-t.x)+Math.abs(this.y-t.y)},setLength:function(t){return this.normalize().multiplyScalar(t)},lerp:function(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this},lerpVectors:function(t,e,i){return this.subVectors(e,t).multiplyScalar(i).add(t)},equals:function(t){return t.x===this.x&&t.y===this.y},fromArray:function(t,e){return void 0===e&&(e=0),this.x=t[e],this.y=t[e+1],this},toArray:function(t,e){return void 0===t&&(t=[]),void 0===e&&(e=0),t[e]=this.x,t[e+1]=this.y,t},fromBufferAttribute:function(t,e,i){return void 0!==i&&console.warn(\"THREE.Vector2: offset has been removed from .fromBufferAttribute().\"),this.x=t.getX(e),this.y=t.getY(e),this},rotateAround:function(t,e){var i=Math.cos(e),n=Math.sin(e),r=this.x-t.x,a=this.y-t.y;return this.x=r*i-a*n+t.x,this.y=r*n+a*i+t.y,this}}),Object.assign(n.prototype,{isMatrix4:!0,set:function(t,e,i,n,r,a,o,s,c,h,l,u,p,d,f,m){var g=this.elements;return g[0]=t,g[4]=e,g[8]=i,g[12]=n,g[1]=r,g[5]=a,g[9]=o,g[13]=s,g[2]=c,g[6]=h,g[10]=l,g[14]=u,g[3]=p,g[7]=d,g[11]=f,g[15]=m,this},identity:function(){return this.set(1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1),this},clone:function(){return(new n).fromArray(this.elements)},copy:function(t){var e=this.elements,i=t.elements;return e[0]=i[0],e[1]=i[1],e[2]=i[2],e[3]=i[3],e[4]=i[4],e[5]=i[5],e[6]=i[6],e[7]=i[7],e[8]=i[8],e[9]=i[9],e[10]=i[10],e[11]=i[11],e[12]=i[12],e[13]=i[13],e[14]=i[14],e[15]=i[15],this},copyPosition:function(t){var e=this.elements,i=t.elements;return e[12]=i[12],e[13]=i[13],e[14]=i[14],this},extractBasis:function(t,e,i){return t.setFromMatrixColumn(this,0),e.setFromMatrixColumn(this,1),i.setFromMatrixColumn(this,2),this},makeBasis:function(t,e,i){return this.set(t.x,e.x,i.x,0,t.y,e.y,i.y,0,t.z,e.z,i.z,0,0,0,0,1),this},extractRotation:function(){var t=new a;return function(e){var i=this.elements,n=e.elements,r=1/t.setFromMatrixColumn(e,0).length(),a=1/t.setFromMatrixColumn(e,1).length(),o=1/t.setFromMatrixColumn(e,2).length();return i[0]=n[0]*r,i[1]=n[1]*r,i[2]=n[2]*r,i[4]=n[4]*a,i[5]=n[5]*a,i[6]=n[6]*a,i[8]=n[8]*o,i[9]=n[9]*o,i[10]=n[10]*o,this}}(),makeRotationFromEuler:function(t){t&&t.isEuler||console.error(\"THREE.Matrix4: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.\");var e=this.elements,i=t.x,n=t.y,r=t.z,a=Math.cos(i),o=Math.sin(i),s=Math.cos(n),c=Math.sin(n),h=Math.cos(r),l=Math.sin(r);if(\"XYZ\"===t.order){var u=a*h,p=a*l,d=o*h,f=o*l;e[0]=s*h,e[4]=-s*l,e[8]=c,e[1]=p+d*c,e[5]=u-f*c,e[9]=-o*s,e[2]=f-u*c,e[6]=d+p*c,e[10]=a*s}else if(\"YXZ\"===t.order){var m=s*h,g=s*l,v=c*h,y=c*l;e[0]=m+y*o,e[4]=v*o-g,e[8]=a*c,e[1]=a*l,e[5]=a*h,e[9]=-o,e[2]=g*o-v,e[6]=y+m*o,e[10]=a*s}else if(\"ZXY\"===t.order){var m=s*h,g=s*l,v=c*h,y=c*l;e[0]=m-y*o,e[4]=-a*l,e[8]=v+g*o,e[1]=g+v*o,e[5]=a*h,e[9]=y-m*o,e[2]=-a*c,e[6]=o,e[10]=a*s}else if(\"ZYX\"===t.order){var u=a*h,p=a*l,d=o*h,f=o*l;e[0]=s*h,e[4]=d*c-p,e[8]=u*c+f,e[1]=s*l,e[5]=f*c+u,e[9]=p*c-d,e[2]=-c,e[6]=o*s,e[10]=a*s}else if(\"YZX\"===t.order){var x=a*s,b=a*c,_=o*s,w=o*c;e[0]=s*h,e[4]=w-x*l,e[8]=_*l+b,e[1]=l,e[5]=a*h,e[9]=-o*h,e[2]=-c*h,e[6]=b*l+_,e[10]=x-w*l}else if(\"XZY\"===t.order){var x=a*s,b=a*c,_=o*s,w=o*c;e[0]=s*h,e[4]=-l,e[8]=c*h,e[1]=x*l+w,e[5]=a*h,e[9]=b*l-_,e[2]=_*l-b,e[6]=o*h,e[10]=w*l+x}return e[3]=0,e[7]=0,e[11]=0,e[12]=0,e[13]=0,e[14]=0,e[15]=1,this},makeRotationFromQuaternion:function(t){var e=this.elements,i=t._x,n=t._y,r=t._z,a=t._w,o=i+i,s=n+n,c=r+r,h=i*o,l=i*s,u=i*c,p=n*s,d=n*c,f=r*c,m=a*o,g=a*s,v=a*c;return e[0]=1-(p+f),e[4]=l-v,e[8]=u+g,e[1]=l+v,e[5]=1-(h+f),e[9]=d-m,e[2]=u-g,e[6]=d+m,e[10]=1-(h+p),e[3]=0,e[7]=0,e[11]=0,e[12]=0,e[13]=0,e[14]=0,e[15]=1,this},lookAt:function(){var t=new a,e=new a,i=new a;return function(n,r,a){var o=this.elements;return i.subVectors(n,r),0===i.lengthSq()&&(i.z=1),i.normalize(),t.crossVectors(a,i),0===t.lengthSq()&&(1===Math.abs(a.z)?i.x+=1e-4:i.z+=1e-4,i.normalize(),t.crossVectors(a,i)),t.normalize(),e.crossVectors(i,t),o[0]=t.x,o[4]=e.x,o[8]=i.x,o[1]=t.y,o[5]=e.y,o[9]=i.y,o[2]=t.z,o[6]=e.z,o[10]=i.z,this}}(),multiply:function(t,e){return void 0!==e?(console.warn(\"THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead.\"),this.multiplyMatrices(t,e)):this.multiplyMatrices(this,t)},premultiply:function(t){return this.multiplyMatrices(t,this)},multiplyMatrices:function(t,e){var i=t.elements,n=e.elements,r=this.elements,a=i[0],o=i[4],s=i[8],c=i[12],h=i[1],l=i[5],u=i[9],p=i[13],d=i[2],f=i[6],m=i[10],g=i[14],v=i[3],y=i[7],x=i[11],b=i[15],_=n[0],w=n[4],M=n[8],E=n[12],T=n[1],S=n[5],A=n[9],R=n[13],L=n[2],P=n[6],C=n[10],I=n[14],U=n[3],D=n[7],O=n[11],N=n[15];return r[0]=a*_+o*T+s*L+c*U,r[4]=a*w+o*S+s*P+c*D,r[8]=a*M+o*A+s*C+c*O,r[12]=a*E+o*R+s*I+c*N,r[1]=h*_+l*T+u*L+p*U,r[5]=h*w+l*S+u*P+p*D,r[9]=h*M+l*A+u*C+p*O,r[13]=h*E+l*R+u*I+p*N,r[2]=d*_+f*T+m*L+g*U,r[6]=d*w+f*S+m*P+g*D,r[10]=d*M+f*A+m*C+g*O,r[14]=d*E+f*R+m*I+g*N,r[3]=v*_+y*T+x*L+b*U,r[7]=v*w+y*S+x*P+b*D,r[11]=v*M+y*A+x*C+b*O,r[15]=v*E+y*R+x*I+b*N,this},multiplyScalar:function(t){var e=this.elements;return e[0]*=t,e[4]*=t,e[8]*=t,e[12]*=t,e[1]*=t,e[5]*=t,e[9]*=t,e[13]*=t,e[2]*=t,e[6]*=t,e[10]*=t,e[14]*=t,e[3]*=t,e[7]*=t,e[11]*=t,e[15]*=t,this},applyToBufferAttribute:function(){var t=new a;return function(e){for(var i=0,n=e.count;i<n;i++)t.x=e.getX(i),t.y=e.getY(i),t.z=e.getZ(i),t.applyMatrix4(this),e.setXYZ(i,t.x,t.y,t.z);return e}}(),determinant:function(){var t=this.elements,e=t[0],i=t[4],n=t[8],r=t[12],a=t[1],o=t[5],s=t[9],c=t[13],h=t[2],l=t[6],u=t[10],p=t[14];return t[3]*(+r*s*l-n*c*l-r*o*u+i*c*u+n*o*p-i*s*p)+t[7]*(+e*s*p-e*c*u+r*a*u-n*a*p+n*c*h-r*s*h)+t[11]*(+e*c*l-e*o*p-r*a*l+i*a*p+r*o*h-i*c*h)+t[15]*(-n*o*h-e*s*l+e*o*u+n*a*l-i*a*u+i*s*h)},transpose:function(){var t,e=this.elements;return t=e[1],e[1]=e[4],e[4]=t,t=e[2],e[2]=e[8],e[8]=t,t=e[6],e[6]=e[9],e[9]=t,t=e[3],e[3]=e[12],e[12]=t,t=e[7],e[7]=e[13],e[13]=t,t=e[11],e[11]=e[14],e[14]=t,this},setPosition:function(t){var e=this.elements;return e[12]=t.x,e[13]=t.y,e[14]=t.z,this},getInverse:function(t,e){var i=this.elements,n=t.elements,r=n[0],a=n[1],o=n[2],s=n[3],c=n[4],h=n[5],l=n[6],u=n[7],p=n[8],d=n[9],f=n[10],m=n[11],g=n[12],v=n[13],y=n[14],x=n[15],b=d*y*u-v*f*u+v*l*m-h*y*m-d*l*x+h*f*x,_=g*f*u-p*y*u-g*l*m+c*y*m+p*l*x-c*f*x,w=p*v*u-g*d*u+g*h*m-c*v*m-p*h*x+c*d*x,M=g*d*l-p*v*l-g*h*f+c*v*f+p*h*y-c*d*y,E=r*b+a*_+o*w+s*M;if(0===E){var T=\"THREE.Matrix4: .getInverse() can't invert matrix, determinant is 0\";if(!0===e)throw new Error(T);return console.warn(T),this.identity()}var S=1/E;return i[0]=b*S,i[1]=(v*f*s-d*y*s-v*o*m+a*y*m+d*o*x-a*f*x)*S,i[2]=(h*y*s-v*l*s+v*o*u-a*y*u-h*o*x+a*l*x)*S,i[3]=(d*l*s-h*f*s-d*o*u+a*f*u+h*o*m-a*l*m)*S,i[4]=_*S,i[5]=(p*y*s-g*f*s+g*o*m-r*y*m-p*o*x+r*f*x)*S,i[6]=(g*l*s-c*y*s-g*o*u+r*y*u+c*o*x-r*l*x)*S,i[7]=(c*f*s-p*l*s+p*o*u-r*f*u-c*o*m+r*l*m)*S,i[8]=w*S,i[9]=(g*d*s-p*v*s-g*a*m+r*v*m+p*a*x-r*d*x)*S,i[10]=(c*v*s-g*h*s+g*a*u-r*v*u-c*a*x+r*h*x)*S,i[11]=(p*h*s-c*d*s-p*a*u+r*d*u+c*a*m-r*h*m)*S,i[12]=M*S,i[13]=(p*v*o-g*d*o+g*a*f-r*v*f-p*a*y+r*d*y)*S,i[14]=(g*h*o-c*v*o-g*a*l+r*v*l+c*a*y-r*h*y)*S,i[15]=(c*d*o-p*h*o+p*a*l-r*d*l-c*a*f+r*h*f)*S,this},scale:function(t){var e=this.elements,i=t.x,n=t.y,r=t.z;return e[0]*=i,e[4]*=n,e[8]*=r,e[1]*=i,e[5]*=n,e[9]*=r,e[2]*=i,e[6]*=n,e[10]*=r,e[3]*=i,e[7]*=n,e[11]*=r,this},getMaxScaleOnAxis:function(){var t=this.elements,e=t[0]*t[0]+t[1]*t[1]+t[2]*t[2],i=t[4]*t[4]+t[5]*t[5]+t[6]*t[6],n=t[8]*t[8]+t[9]*t[9]+t[10]*t[10];return Math.sqrt(Math.max(e,i,n))},makeTranslation:function(t,e,i){return this.set(1,0,0,t,0,1,0,e,0,0,1,i,0,0,0,1),this},makeRotationX:function(t){var e=Math.cos(t),i=Math.sin(t);return this.set(1,0,0,0,0,e,-i,0,0,i,e,0,0,0,0,1),this},makeRotationY:function(t){var e=Math.cos(t),i=Math.sin(t);return this.set(e,0,i,0,0,1,0,0,-i,0,e,0,0,0,0,1),this},makeRotationZ:function(t){var e=Math.cos(t),i=Math.sin(t);return this.set(e,-i,0,0,i,e,0,0,0,0,1,0,0,0,0,1),this},makeRotationAxis:function(t,e){var i=Math.cos(e),n=Math.sin(e),r=1-i,a=t.x,o=t.y,s=t.z,c=r*a,h=r*o;return this.set(c*a+i,c*o-n*s,c*s+n*o,0,c*o+n*s,h*o+i,h*s-n*a,0,c*s-n*o,h*s+n*a,r*s*s+i,0,0,0,0,1),this},makeScale:function(t,e,i){return this.set(t,0,0,0,0,e,0,0,0,0,i,0,0,0,0,1),this},makeShear:function(t,e,i){return this.set(1,e,i,0,t,1,i,0,t,e,1,0,0,0,0,1),this},compose:function(t,e,i){return this.makeRotationFromQuaternion(e),this.scale(i),this.setPosition(t),this},decompose:function(){var t=new a,e=new n;return function(i,n,r){var a=this.elements,o=t.set(a[0],a[1],a[2]).length(),s=t.set(a[4],a[5],a[6]).length(),c=t.set(a[8],a[9],a[10]).length();this.determinant()<0&&(o=-o),i.x=a[12],i.y=a[13],i.z=a[14],e.copy(this);var h=1/o,l=1/s,u=1/c;return e.elements[0]*=h,e.elements[1]*=h,e.elements[2]*=h,e.elements[4]*=l,e.elements[5]*=l,e.elements[6]*=l,e.elements[8]*=u,e.elements[9]*=u,e.elements[10]*=u,n.setFromRotationMatrix(e),r.x=o,r.y=s,r.z=c,this}}(),makePerspective:function(t,e,i,n,r,a){void 0===a&&console.warn(\"THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.\");var o=this.elements,s=2*r/(e-t),c=2*r/(i-n),h=(e+t)/(e-t),l=(i+n)/(i-n),u=-(a+r)/(a-r),p=-2*a*r/(a-r);return o[0]=s,o[4]=0,o[8]=h,o[12]=0,o[1]=0,o[5]=c,o[9]=l,o[13]=0,o[2]=0,o[6]=0,o[10]=u,o[14]=p,o[3]=0,o[7]=0,o[11]=-1,o[15]=0,this},makeOrthographic:function(t,e,i,n,r,a){var o=this.elements,s=1/(e-t),c=1/(i-n),h=1/(a-r),l=(e+t)*s,u=(i+n)*c,p=(a+r)*h;return o[0]=2*s,o[4]=0,o[8]=0,o[12]=-l,o[1]=0,o[5]=2*c,o[9]=0,o[13]=-u,o[2]=0,o[6]=0,o[10]=-2*h,o[14]=-p,o[3]=0,o[7]=0,o[11]=0,o[15]=1,this},equals:function(t){for(var e=this.elements,i=t.elements,n=0;n<16;n++)if(e[n]!==i[n])return!1;return!0},fromArray:function(t,e){void 0===e&&(e=0);for(var i=0;i<16;i++)this.elements[i]=t[i+e];return this},toArray:function(t,e){void 0===t&&(t=[]),void 0===e&&(e=0);var i=this.elements;return t[e]=i[0],t[e+1]=i[1],t[e+2]=i[2],t[e+3]=i[3],t[e+4]=i[4],t[e+5]=i[5],t[e+6]=i[6],t[e+7]=i[7],t[e+8]=i[8],t[e+9]=i[9],t[e+10]=i[10],t[e+11]=i[11],t[e+12]=i[12],t[e+13]=i[13],t[e+14]=i[14],t[e+15]=i[15],t}}),Object.assign(r,{slerp:function(t,e,i,n){return i.copy(t).slerp(e,n)},slerpFlat:function(t,e,i,n,r,a,o){var s=i[n+0],c=i[n+1],h=i[n+2],l=i[n+3],u=r[a+0],p=r[a+1],d=r[a+2],f=r[a+3];if(l!==f||s!==u||c!==p||h!==d){var m=1-o,g=s*u+c*p+h*d+l*f,v=g>=0?1:-1,y=1-g*g;if(y>Number.EPSILON){var x=Math.sqrt(y),b=Math.atan2(x,g*v);m=Math.sin(m*b)/x,o=Math.sin(o*b)/x}var _=o*v;if(s=s*m+u*_,c=c*m+p*_,h=h*m+d*_,l=l*m+f*_,m===1-o){var w=1/Math.sqrt(s*s+c*c+h*h+l*l);s*=w,c*=w,h*=w,l*=w}}t[e]=s,t[e+1]=c,t[e+2]=h,t[e+3]=l}}),Object.defineProperties(r.prototype,{x:{get:function(){return this._x},set:function(t){this._x=t,this.onChangeCallback()}},y:{get:function(){return this._y},set:function(t){this._y=t,this.onChangeCallback()}},z:{get:function(){return this._z},set:function(t){this._z=t,this.onChangeCallback()}},w:{get:function(){return this._w},set:function(t){this._w=t,this.onChangeCallback()}}}),Object.assign(r.prototype,{set:function(t,e,i,n){return this._x=t,this._y=e,this._z=i,this._w=n,this.onChangeCallback(),this},clone:function(){return new this.constructor(this._x,this._y,this._z,this._w)},copy:function(t){return this._x=t.x,this._y=t.y,this._z=t.z,this._w=t.w,this.onChangeCallback(),this},setFromEuler:function(t,e){if(!t||!t.isEuler)throw new Error(\"THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.\");var i=t._x,n=t._y,r=t._z,a=t.order,o=Math.cos,s=Math.sin,c=o(i/2),h=o(n/2),l=o(r/2),u=s(i/2),p=s(n/2),d=s(r/2);return\"XYZ\"===a?(this._x=u*h*l+c*p*d,this._y=c*p*l-u*h*d,this._z=c*h*d+u*p*l,this._w=c*h*l-u*p*d):\"YXZ\"===a?(this._x=u*h*l+c*p*d,this._y=c*p*l-u*h*d,this._z=c*h*d-u*p*l,this._w=c*h*l+u*p*d):\"ZXY\"===a?(this._x=u*h*l-c*p*d,this._y=c*p*l+u*h*d,this._z=c*h*d+u*p*l,this._w=c*h*l-u*p*d):\"ZYX\"===a?(this._x=u*h*l-c*p*d,this._y=c*p*l+u*h*d,this._z=c*h*d-u*p*l,this._w=c*h*l+u*p*d):\"YZX\"===a?(this._x=u*h*l+c*p*d,this._y=c*p*l+u*h*d,this._z=c*h*d-u*p*l,this._w=c*h*l-u*p*d):\"XZY\"===a&&(this._x=u*h*l-c*p*d,this._y=c*p*l-u*h*d,this._z=c*h*d+u*p*l,this._w=c*h*l+u*p*d),!1!==e&&this.onChangeCallback(),this},setFromAxisAngle:function(t,e){var i=e/2,n=Math.sin(i);return this._x=t.x*n,this._y=t.y*n,this._z=t.z*n,this._w=Math.cos(i),this.onChangeCallback(),this},setFromRotationMatrix:function(t){var e,i=t.elements,n=i[0],r=i[4],a=i[8],o=i[1],s=i[5],c=i[9],h=i[2],l=i[6],u=i[10],p=n+s+u;return p>0?(e=.5/Math.sqrt(p+1),this._w=.25/e,this._x=(l-c)*e,this._y=(a-h)*e,this._z=(o-r)*e):n>s&&n>u?(e=2*Math.sqrt(1+n-s-u),this._w=(l-c)/e,this._x=.25*e,this._y=(r+o)/e,this._z=(a+h)/e):s>u?(e=2*Math.sqrt(1+s-n-u),this._w=(a-h)/e,this._x=(r+o)/e,this._y=.25*e,this._z=(c+l)/e):(e=2*Math.sqrt(1+u-n-s),this._w=(o-r)/e,this._x=(a+h)/e,this._y=(c+l)/e,this._z=.25*e),this.onChangeCallback(),this},setFromUnitVectors:function(){var t,e=new a;return function(i,n){return void 0===e&&(e=new a),t=i.dot(n)+1,t<1e-6?(t=0,Math.abs(i.x)>Math.abs(i.z)?e.set(-i.y,i.x,0):e.set(0,-i.z,i.y)):e.crossVectors(i,n),this._x=e.x,this._y=e.y,this._z=e.z,this._w=t,this.normalize()}}(),inverse:function(){return this.conjugate().normalize()},conjugate:function(){return this._x*=-1,this._y*=-1,this._z*=-1,this.onChangeCallback(),this},dot:function(t){return this._x*t._x+this._y*t._y+this._z*t._z+this._w*t._w},lengthSq:function(){return this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w},length:function(){return Math.sqrt(this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w)},normalize:function(){var t=this.length();return 0===t?(this._x=0,this._y=0,this._z=0,this._w=1):(t=1/t,this._x=this._x*t,this._y=this._y*t,this._z=this._z*t,this._w=this._w*t),this.onChangeCallback(),this},multiply:function(t,e){return void 0!==e?(console.warn(\"THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead.\"),this.multiplyQuaternions(t,e)):this.multiplyQuaternions(this,t)},premultiply:function(t){return this.multiplyQuaternions(t,this)},multiplyQuaternions:function(t,e){var i=t._x,n=t._y,r=t._z,a=t._w,o=e._x,s=e._y,c=e._z,h=e._w;return this._x=i*h+a*o+n*c-r*s,this._y=n*h+a*s+r*o-i*c,this._z=r*h+a*c+i*s-n*o,this._w=a*h-i*o-n*s-r*c,this.onChangeCallback(),this},slerp:function(t,e){if(0===e)return this;if(1===e)return this.copy(t);var i=this._x,n=this._y,r=this._z,a=this._w,o=a*t._w+i*t._x+n*t._y+r*t._z;if(o<0?(this._w=-t._w,this._x=-t._x,this._y=-t._y,this._z=-t._z,o=-o):this.copy(t),o>=1)return this._w=a,this._x=i,this._y=n,this._z=r,this;var s=Math.sqrt(1-o*o);if(Math.abs(s)<.001)return this._w=.5*(a+this._w),this._x=.5*(i+this._x),this._y=.5*(n+this._y),this._z=.5*(r+this._z),this;var c=Math.atan2(s,o),h=Math.sin((1-e)*c)/s,l=Math.sin(e*c)/s;return this._w=a*h+this._w*l,this._x=i*h+this._x*l,this._y=n*h+this._y*l,this._z=r*h+this._z*l,this.onChangeCallback(),this},equals:function(t){return t._x===this._x&&t._y===this._y&&t._z===this._z&&t._w===this._w},fromArray:function(t,e){return void 0===e&&(e=0),this._x=t[e],this._y=t[e+1],this._z=t[e+2],this._w=t[e+3],this.onChangeCallback(),this},toArray:function(t,e){return void 0===t&&(t=[]),void 0===e&&(e=0),t[e]=this._x,t[e+1]=this._y,t[e+2]=this._z,t[e+3]=this._w,t},onChange:function(t){return this.onChangeCallback=t,this},onChangeCallback:function(){}}),Object.assign(a.prototype,{isVector3:!0,set:function(t,e,i){return this.x=t,this.y=e,this.z=i,this},setScalar:function(t){return this.x=t,this.y=t,this.z=t,this},setX:function(t){return this.x=t,this},setY:function(t){return this.y=t,this},setZ:function(t){return this.z=t,this},setComponent:function(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;case 2:this.z=e;break;default:throw new Error(\"index is out of range: \"+t)}return this},getComponent:function(t){switch(t){case 0:return this.x;case 1:return this.y;case 2:return this.z;default:throw new Error(\"index is out of range: \"+t)}},clone:function(){return new this.constructor(this.x,this.y,this.z)},copy:function(t){return this.x=t.x,this.y=t.y,this.z=t.z,this},add:function(t,e){return void 0!==e?(console.warn(\"THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead.\"),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this.z+=t.z,this)},addScalar:function(t){return this.x+=t,this.y+=t,this.z+=t,this},addVectors:function(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this.z=t.z+e.z,this},addScaledVector:function(t,e){return this.x+=t.x*e,this.y+=t.y*e,this.z+=t.z*e,this},sub:function(t,e){return void 0!==e?(console.warn(\"THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.\"),this.subVectors(t,e)):(this.x-=t.x,this.y-=t.y,this.z-=t.z,this)},subScalar:function(t){return this.x-=t,this.y-=t,this.z-=t,this},subVectors:function(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this.z=t.z-e.z,this},multiply:function(t,e){return void 0!==e?(console.warn(\"THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead.\"),this.multiplyVectors(t,e)):(this.x*=t.x,this.y*=t.y,this.z*=t.z,this)},multiplyScalar:function(t){return this.x*=t,this.y*=t,this.z*=t,this},multiplyVectors:function(t,e){return this.x=t.x*e.x,this.y=t.y*e.y,this.z=t.z*e.z,this},applyEuler:function(){var t=new r;return function(e){return e&&e.isEuler||console.error(\"THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order.\"),this.applyQuaternion(t.setFromEuler(e))}}(),applyAxisAngle:function(){var t=new r;return function(e,i){return this.applyQuaternion(t.setFromAxisAngle(e,i))}}(),applyMatrix3:function(t){var e=this.x,i=this.y,n=this.z,r=t.elements;return this.x=r[0]*e+r[3]*i+r[6]*n,this.y=r[1]*e+r[4]*i+r[7]*n,this.z=r[2]*e+r[5]*i+r[8]*n,this},applyMatrix4:function(t){var e=this.x,i=this.y,n=this.z,r=t.elements,a=1/(r[3]*e+r[7]*i+r[11]*n+r[15]);return this.x=(r[0]*e+r[4]*i+r[8]*n+r[12])*a,this.y=(r[1]*e+r[5]*i+r[9]*n+r[13])*a,this.z=(r[2]*e+r[6]*i+r[10]*n+r[14])*a,this},applyQuaternion:function(t){var e=this.x,i=this.y,n=this.z,r=t.x,a=t.y,o=t.z,s=t.w,c=s*e+a*n-o*i,h=s*i+o*e-r*n,l=s*n+r*i-a*e,u=-r*e-a*i-o*n;return this.x=c*s+u*-r+h*-o-l*-a,this.y=h*s+u*-a+l*-r-c*-o,this.z=l*s+u*-o+c*-a-h*-r,this},project:function(){var t=new n;return function(e){return t.multiplyMatrices(e.projectionMatrix,t.getInverse(e.matrixWorld)),this.applyMatrix4(t)}}(),unproject:function(){var t=new n;return function(e){return t.multiplyMatrices(e.matrixWorld,t.getInverse(e.projectionMatrix)),this.applyMatrix4(t)}}(),transformDirection:function(t){var e=this.x,i=this.y,n=this.z,r=t.elements;return this.x=r[0]*e+r[4]*i+r[8]*n,this.y=r[1]*e+r[5]*i+r[9]*n,this.z=r[2]*e+r[6]*i+r[10]*n,this.normalize()},divide:function(t){return this.x/=t.x,this.y/=t.y,this.z/=t.z,this},divideScalar:function(t){return this.multiplyScalar(1/t)},min:function(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this.z=Math.min(this.z,t.z),this},max:function(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this.z=Math.max(this.z,t.z),this},clamp:function(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this.z=Math.max(t.z,Math.min(e.z,this.z)),this},clampScalar:function(){var t=new a,e=new a;return function(i,n){return t.set(i,i,i),e.set(n,n,n),this.clamp(t,e)}}(),clampLength:function(t,e){var i=this.length();return this.divideScalar(i||1).multiplyScalar(Math.max(t,Math.min(e,i)))},floor:function(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this},ceil:function(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this},round:function(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this},roundToZero:function(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this.z=this.z<0?Math.ceil(this.z):Math.floor(this.z),this},negate:function(){return this.x=-this.x,this.y=-this.y,this.z=-this.z,this},dot:function(t){return this.x*t.x+this.y*t.y+this.z*t.z},lengthSq:function(){return this.x*this.x+this.y*this.y+this.z*this.z},length:function(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z)},manhattanLength:function(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)},normalize:function(){return this.divideScalar(this.length()||1)},setLength:function(t){return this.normalize().multiplyScalar(t)},lerp:function(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this.z+=(t.z-this.z)*e,this},lerpVectors:function(t,e,i){return this.subVectors(e,t).multiplyScalar(i).add(t)},cross:function(t,e){return void 0!==e?(console.warn(\"THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead.\"),this.crossVectors(t,e)):this.crossVectors(this,t)},crossVectors:function(t,e){var i=t.x,n=t.y,r=t.z,a=e.x,o=e.y,s=e.z;return this.x=n*s-r*o,this.y=r*a-i*s,this.z=i*o-n*a,this},projectOnVector:function(t){var e=t.dot(this)/t.lengthSq();return this.copy(t).multiplyScalar(e)},projectOnPlane:function(){var t=new a;return function(e){return t.copy(this).projectOnVector(e),this.sub(t)}}(),reflect:function(){var t=new a;return function(e){return this.sub(t.copy(e).multiplyScalar(2*this.dot(e)))}}(),angleTo:function(t){var e=this.dot(t)/Math.sqrt(this.lengthSq()*t.lengthSq());return Math.acos(ms.clamp(e,-1,1))},distanceTo:function(t){return Math.sqrt(this.distanceToSquared(t))},distanceToSquared:function(t){var e=this.x-t.x,i=this.y-t.y,n=this.z-t.z;return e*e+i*i+n*n},manhattanDistanceTo:function(t){return Math.abs(this.x-t.x)+Math.abs(this.y-t.y)+Math.abs(this.z-t.z)},setFromSpherical:function(t){var e=Math.sin(t.phi)*t.radius;return this.x=e*Math.sin(t.theta),this.y=Math.cos(t.phi)*t.radius,this.z=e*Math.cos(t.theta),this},setFromCylindrical:function(t){return this.x=t.radius*Math.sin(t.theta),this.y=t.y,this.z=t.radius*Math.cos(t.theta),this},setFromMatrixPosition:function(t){var e=t.elements;return this.x=e[12],this.y=e[13],this.z=e[14],this},setFromMatrixScale:function(t){var e=this.setFromMatrixColumn(t,0).length(),i=this.setFromMatrixColumn(t,1).length(),n=this.setFromMatrixColumn(t,2).length();return this.x=e,this.y=i,this.z=n,this},setFromMatrixColumn:function(t,e){return this.fromArray(t.elements,4*e)},equals:function(t){return t.x===this.x&&t.y===this.y&&t.z===this.z},fromArray:function(t,e){return void 0===e&&(e=0),this.x=t[e],this.y=t[e+1],this.z=t[e+2],this},toArray:function(t,e){return void 0===t&&(t=[]),void 0===e&&(e=0),t[e]=this.x,t[e+1]=this.y,t[e+2]=this.z,t},fromBufferAttribute:function(t,e,i){return void 0!==i&&console.warn(\"THREE.Vector3: offset has been removed from .fromBufferAttribute().\"),this.x=t.getX(e),this.y=t.getY(e),this.z=t.getZ(e),this}}),Object.assign(o.prototype,{isMatrix3:!0,set:function(t,e,i,n,r,a,o,s,c){var h=this.elements;return h[0]=t,h[1]=n,h[2]=o,h[3]=e,h[4]=r,h[5]=s,h[6]=i,h[7]=a,h[8]=c,this},identity:function(){return this.set(1,0,0,0,1,0,0,0,1),this},clone:function(){return(new this.constructor).fromArray(this.elements)},copy:function(t){var e=this.elements,i=t.elements;return e[0]=i[0],e[1]=i[1],e[2]=i[2],e[3]=i[3],e[4]=i[4],e[5]=i[5],e[6]=i[6],e[7]=i[7],e[8]=i[8],this},setFromMatrix4:function(t){var e=t.elements;return this.set(e[0],e[4],e[8],e[1],e[5],e[9],e[2],e[6],e[10]),this},applyToBufferAttribute:function(){var t=new a;return function(e){for(var i=0,n=e.count;i<n;i++)t.x=e.getX(i),t.y=e.getY(i),t.z=e.getZ(i),t.applyMatrix3(this),e.setXYZ(i,t.x,t.y,t.z);return e}}(),multiply:function(t){return this.multiplyMatrices(this,t)},premultiply:function(t){return this.multiplyMatrices(t,this)},multiplyMatrices:function(t,e){var i=t.elements,n=e.elements,r=this.elements,a=i[0],o=i[3],s=i[6],c=i[1],h=i[4],l=i[7],u=i[2],p=i[5],d=i[8],f=n[0],m=n[3],g=n[6],v=n[1],y=n[4],x=n[7],b=n[2],_=n[5],w=n[8];return r[0]=a*f+o*v+s*b,r[3]=a*m+o*y+s*_,r[6]=a*g+o*x+s*w,r[1]=c*f+h*v+l*b,r[4]=c*m+h*y+l*_,r[7]=c*g+h*x+l*w,r[2]=u*f+p*v+d*b,r[5]=u*m+p*y+d*_,r[8]=u*g+p*x+d*w,this},multiplyScalar:function(t){var e=this.elements;return e[0]*=t,e[3]*=t,e[6]*=t,e[1]*=t,e[4]*=t,e[7]*=t,e[2]*=t,e[5]*=t,e[8]*=t,this},determinant:function(){var t=this.elements,e=t[0],i=t[1],n=t[2],r=t[3],a=t[4],o=t[5],s=t[6],c=t[7],h=t[8];return e*a*h-e*o*c-i*r*h+i*o*s+n*r*c-n*a*s},getInverse:function(t,e){t&&t.isMatrix4&&console.error(\"THREE.Matrix3: .getInverse() no longer takes a Matrix4 argument.\");var i=t.elements,n=this.elements,r=i[0],a=i[1],o=i[2],s=i[3],c=i[4],h=i[5],l=i[6],u=i[7],p=i[8],d=p*c-h*u,f=h*l-p*s,m=u*s-c*l,g=r*d+a*f+o*m;if(0===g){var v=\"THREE.Matrix3: .getInverse() can't invert matrix, determinant is 0\";if(!0===e)throw new Error(v);return console.warn(v),this.identity()}var y=1/g;return n[0]=d*y,n[1]=(o*u-p*a)*y,n[2]=(h*a-o*c)*y,n[3]=f*y,n[4]=(p*r-o*l)*y,n[5]=(o*s-h*r)*y,n[6]=m*y,n[7]=(a*l-u*r)*y,n[8]=(c*r-a*s)*y,this},transpose:function(){var t,e=this.elements;return t=e[1],e[1]=e[3],e[3]=t,t=e[2],e[2]=e[6],e[6]=t,t=e[5],e[5]=e[7],e[7]=t,this},getNormalMatrix:function(t){return this.setFromMatrix4(t).getInverse(this).transpose()},transposeIntoArray:function(t){var e=this.elements;return t[0]=e[0],t[1]=e[3],t[2]=e[6],t[3]=e[1],t[4]=e[4],t[5]=e[7],t[6]=e[2],t[7]=e[5],t[8]=e[8],this},setUvTransform:function(t,e,i,n,r,a,o){var s=Math.cos(r),c=Math.sin(r);this.set(i*s,i*c,-i*(s*a+c*o)+a+t,-n*c,n*s,-n*(-c*a+s*o)+o+e,0,0,1)},scale:function(t,e){var i=this.elements;return i[0]*=t,i[3]*=t,i[6]*=t,i[1]*=e,i[4]*=e,i[7]*=e,this},rotate:function(t){var e=Math.cos(t),i=Math.sin(t),n=this.elements,r=n[0],a=n[3],o=n[6],s=n[1],c=n[4],h=n[7];return n[0]=e*r+i*s,n[3]=e*a+i*c,n[6]=e*o+i*h,n[1]=-i*r+e*s,n[4]=-i*a+e*c,n[7]=-i*o+e*h,this},translate:function(t,e){var i=this.elements;return i[0]+=t*i[2],i[3]+=t*i[5],i[6]+=t*i[8],i[1]+=e*i[2],i[4]+=e*i[5],i[7]+=e*i[8],this},equals:function(t){for(var e=this.elements,i=t.elements,n=0;n<9;n++)if(e[n]!==i[n])return!1;return!0},fromArray:function(t,e){void 0===e&&(e=0);for(var i=0;i<9;i++)this.elements[i]=t[i+e];return this},toArray:function(t,e){void 0===t&&(t=[]),void 0===e&&(e=0);var i=this.elements;return t[e]=i[0],t[e+1]=i[1],t[e+2]=i[2],t[e+3]=i[3],t[e+4]=i[4],t[e+5]=i[5],t[e+6]=i[6],t[e+7]=i[7],t[e+8]=i[8],t}});var gs=0;s.DEFAULT_IMAGE=void 0,s.DEFAULT_MAPPING=300,Object.defineProperty(s.prototype,\"needsUpdate\",{set:function(t){!0===t&&this.version++}}),Object.assign(s.prototype,e.prototype,{constructor:s,isTexture:!0,clone:function(){return(new this.constructor).copy(this)},copy:function(t){return this.name=t.name,this.image=t.image,this.mipmaps=t.mipmaps.slice(0),this.mapping=t.mapping,this.wrapS=t.wrapS,this.wrapT=t.wrapT,this.magFilter=t.magFilter,this.minFilter=t.minFilter,this.anisotropy=t.anisotropy,this.format=t.format,this.type=t.type,this.offset.copy(t.offset),this.repeat.copy(t.repeat),this.center.copy(t.center),this.rotation=t.rotation,this.matrixAutoUpdate=t.matrixAutoUpdate,this.matrix.copy(t.matrix),this.generateMipmaps=t.generateMipmaps,this.premultiplyAlpha=t.premultiplyAlpha,this.flipY=t.flipY,this.unpackAlignment=t.unpackAlignment,this.encoding=t.encoding,this},toJSON:function(t){var e=void 0===t||\"string\"==typeof t;if(!e&&void 0!==t.textures[this.uuid])return t.textures[this.uuid];var i={metadata:{version:4.5,type:\"Texture\",generator:\"Texture.toJSON\"},uuid:this.uuid,name:this.name,mapping:this.mapping,repeat:[this.repeat.x,this.repeat.y],offset:[this.offset.x,this.offset.y],center:[this.center.x,this.center.y],rotation:this.rotation,wrap:[this.wrapS,this.wrapT],minFilter:this.minFilter,magFilter:this.magFilter,anisotropy:this.anisotropy,flipY:this.flipY};if(void 0!==this.image){var n=this.image;void 0===n.uuid&&(n.uuid=ms.generateUUID()),e||void 0!==t.images[n.uuid]||(t.images[n.uuid]={uuid:n.uuid,url:function(t){var e;if(t instanceof HTMLCanvasElement)e=t;else{e=document.createElementNS(\"http://www.w3.org/1999/xhtml\",\"canvas\"),e.width=t.width,e.height=t.height;var i=e.getContext(\"2d\");t instanceof ImageData?i.putImageData(t,0,0):i.drawImage(t,0,0,t.width,t.height)}return e.width>2048||e.height>2048?e.toDataURL(\"image/jpeg\",.6):e.toDataURL(\"image/png\")}(n)}),i.image=n.uuid}return e||(t.textures[this.uuid]=i),i},dispose:function(){this.dispatchEvent({type:\"dispose\"})},transformUv:function(t){if(300===this.mapping){if(t.applyMatrix3(this.matrix),t.x<0||t.x>1)switch(this.wrapS){case vo:t.x=t.x-Math.floor(t.x);break;case yo:t.x=t.x<0?0:1;break;case xo:1===Math.abs(Math.floor(t.x)%2)?t.x=Math.ceil(t.x)-t.x:t.x=t.x-Math.floor(t.x)}if(t.y<0||t.y>1)switch(this.wrapT){case vo:t.y=t.y-Math.floor(t.y);break;case yo:t.y=t.y<0?0:1;break;case xo:1===Math.abs(Math.floor(t.y)%2)?t.y=Math.ceil(t.y)-t.y:t.y=t.y-Math.floor(t.y)}this.flipY&&(t.y=1-t.y)}}}),Object.assign(c.prototype,{isVector4:!0,set:function(t,e,i,n){return this.x=t,this.y=e,this.z=i,this.w=n,this},setScalar:function(t){return this.x=t,this.y=t,this.z=t,this.w=t,this},setX:function(t){return this.x=t,this},setY:function(t){return this.y=t,this},setZ:function(t){return this.z=t,this},setW:function(t){return this.w=t,this},setComponent:function(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;case 2:this.z=e;break;case 3:this.w=e;break;default:throw new Error(\"index is out of range: \"+t)}return this},getComponent:function(t){switch(t){case 0:return this.x;case 1:return this.y;case 2:return this.z;case 3:return this.w;default:throw new Error(\"index is out of range: \"+t)}},clone:function(){return new this.constructor(this.x,this.y,this.z,this.w)},copy:function(t){return this.x=t.x,this.y=t.y,this.z=t.z,this.w=void 0!==t.w?t.w:1,this},add:function(t,e){return void 0!==e?(console.warn(\"THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead.\"),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this.z+=t.z,this.w+=t.w,this)},addScalar:function(t){return this.x+=t,this.y+=t,this.z+=t,this.w+=t,this},addVectors:function(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this.z=t.z+e.z,this.w=t.w+e.w,this},addScaledVector:function(t,e){return this.x+=t.x*e,this.y+=t.y*e,this.z+=t.z*e,this.w+=t.w*e,this},sub:function(t,e){return void 0!==e?(console.warn(\"THREE.Vector4: .sub() now only accepts one argument. 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Ms=/([\\w\\d_]+)(\\])?(\\[|\\.)?/g;X.prototype.setValue=function(t,e,i){var n=this.map[e];void 0!==n&&n.setValue(t,i,this.renderer)},X.prototype.setOptional=function(t,e,i){var n=e[i];void 0!==n&&this.setValue(t,i,n)},X.upload=function(t,e,i,n){for(var r=0,a=e.length;r!==a;++r){var o=e[r],s=i[o.id];!1!==s.needsUpdate&&o.setValue(t,s.value,n)}},X.seqWithValue=function(t,e){for(var i=[],n=0,r=t.length;n!==r;++n){var a=t[n];a.id in e&&i.push(a)}return i};var Es={aliceblue:15792383,antiquewhite:16444375,aqua:65535,aquamarine:8388564,azure:15794175,beige:16119260,bisque:16770244,black:0,blanchedalmond:16772045,blue:255,blueviolet:9055202,brown:10824234,burlywood:14596231,cadetblue:6266528,chartreuse:8388352,chocolate:13789470,coral:16744272,cornflowerblue:6591981,cornsilk:16775388,crimson:14423100,cyan:65535,darkblue:139,darkcyan:35723,darkgoldenrod:12092939,darkgray:11119017,darkgreen:25600,darkgrey:11119017,darkkhaki:12433259,darkmagenta:9109643,darkolivegreen:5597999,darkorange:16747520,darkorchid:10040012,darkred:9109504,darksalmon:15308410,darkseagreen:9419919,darkslateblue:4734347,darkslategray:3100495,darkslategrey:3100495,darkturquoise:52945,darkviolet:9699539,deeppink:16716947,deepskyblue:49151,dimgray:6908265,dimgrey:6908265,dodgerblue:2003199,firebrick:11674146,floralwhite:16775920,forestgreen:2263842,fuchsia:16711935,gainsboro:14474460,ghostwhite:16316671,gold:16766720,goldenrod:14329120,gray:8421504,green:32768,greenyellow:11403055,grey:8421504,honeydew:15794160,hotpink:16738740,indianred:13458524,indigo:4915330,ivory:16777200,khaki:15787660,lavender:15132410,lavenderblush:16773365,lawngreen:8190976,lemonchiffon:16775885,lightblue:11393254,lightcoral:15761536,lightcyan:14745599,lightgoldenrodyellow:16448210,lightgray:13882323,lightgreen:9498256,lightgrey:13882323,lightpink:16758465,lightsalmon:16752762,lightseagreen:2142890,lightskyblue:8900346,lightslategray:7833753,lightslategrey:7833753,lightsteelblue:11584734,lightyellow:16777184,lime:65280,limegreen:3329330,linen:16445670,magenta:16711935,maroon:8388608,mediumaquamarine:6737322,mediumblue:205,mediumorchid:12211667,mediumpurple:9662683,mediumseagreen:3978097,mediumslateblue:8087790,mediumspringgreen:64154,mediumturquoise:4772300,mediumvioletred:13047173,midnightblue:1644912,mintcream:16121850,mistyrose:16770273,moccasin:16770229,navajowhite:16768685,navy:128,oldlace:16643558,olive:8421376,olivedrab:7048739,orange:16753920,orangered:16729344,orchid:14315734,palegoldenrod:15657130,palegreen:10025880,paleturquoise:11529966,palevioletred:14381203,papayawhip:16773077,peachpuff:16767673,peru:13468991,pink:16761035,plum:14524637,powderblue:11591910,purple:8388736,rebeccapurple:6697881,red:16711680,rosybrown:12357519,royalblue:4286945,saddlebrown:9127187,salmon:16416882,sandybrown:16032864,seagreen:3050327,seashell:16774638,sienna:10506797,silver:12632256,skyblue:8900331,slateblue:6970061,slategray:7372944,slategrey:7372944,snow:16775930,springgreen:65407,steelblue:4620980,tan:13808780,teal:32896,thistle:14204888,tomato:16737095,turquoise:4251856,violet:15631086,wheat:16113331,white:16777215,whitesmoke:16119285,yellow:16776960,yellowgreen:10145074};Object.assign(q.prototype,{isColor:!0,r:1,g:1,b:1,set:function(t){return t&&t.isColor?this.copy(t):\"number\"==typeof t?this.setHex(t):\"string\"==typeof t&&this.setStyle(t),this},setScalar:function(t){return this.r=t,this.g=t,this.b=t,this},setHex:function(t){return t=Math.floor(t),this.r=(t>>16&255)/255,this.g=(t>>8&255)/255,this.b=(255&t)/255,this},setRGB:function(t,e,i){return this.r=t,this.g=e,this.b=i,this},setHSL:function(){function t(t,e,i){return i<0&&(i+=1),i>1&&(i-=1),i<1/6?t+6*(e-t)*i:i<.5?e:i<2/3?t+6*(e-t)*(2/3-i):t}return function(e,i,n){if(e=ms.euclideanModulo(e,1),i=ms.clamp(i,0,1),n=ms.clamp(n,0,1),0===i)this.r=this.g=this.b=n;else{var r=n<=.5?n*(1+i):n+i-n*i,a=2*n-r;this.r=t(a,r,e+1/3),this.g=t(a,r,e),this.b=t(a,r,e-1/3)}return this}}(),setStyle:function(t){function e(e){void 0!==e&&parseFloat(e)<1&&console.warn(\"THREE.Color: Alpha component of \"+t+\" will be ignored.\")}var i;if(i=/^((?:rgb|hsl)a?)\\(\\s*([^\\)]*)\\)/.exec(t)){var n,r=i[1],a=i[2];switch(r){case\"rgb\":case\"rgba\":if(n=/^(\\d+)\\s*,\\s*(\\d+)\\s*,\\s*(\\d+)\\s*(,\\s*([0-9]*\\.?[0-9]+)\\s*)?$/.exec(a))return this.r=Math.min(255,parseInt(n[1],10))/255,this.g=Math.min(255,parseInt(n[2],10))/255,this.b=Math.min(255,parseInt(n[3],10))/255,e(n[5]),this;if(n=/^(\\d+)\\%\\s*,\\s*(\\d+)\\%\\s*,\\s*(\\d+)\\%\\s*(,\\s*([0-9]*\\.?[0-9]+)\\s*)?$/.exec(a))return this.r=Math.min(100,parseInt(n[1],10))/100,this.g=Math.min(100,parseInt(n[2],10))/100,this.b=Math.min(100,parseInt(n[3],10))/100,e(n[5]),this;break;case\"hsl\":case\"hsla\":if(n=/^([0-9]*\\.?[0-9]+)\\s*,\\s*(\\d+)\\%\\s*,\\s*(\\d+)\\%\\s*(,\\s*([0-9]*\\.?[0-9]+)\\s*)?$/.exec(a)){var o=parseFloat(n[1])/360,s=parseInt(n[2],10)/100,c=parseInt(n[3],10)/100;return e(n[5]),this.setHSL(o,s,c)}}}else if(i=/^\\#([A-Fa-f0-9]+)$/.exec(t)){var h=i[1],l=h.length;if(3===l)return this.r=parseInt(h.charAt(0)+h.charAt(0),16)/255,this.g=parseInt(h.charAt(1)+h.charAt(1),16)/255,this.b=parseInt(h.charAt(2)+h.charAt(2),16)/255,this;if(6===l)return this.r=parseInt(h.charAt(0)+h.charAt(1),16)/255,this.g=parseInt(h.charAt(2)+h.charAt(3),16)/255,this.b=parseInt(h.charAt(4)+h.charAt(5),16)/255,this}if(t&&t.length>0){var h=Es[t];void 0!==h?this.setHex(h):console.warn(\"THREE.Color: Unknown color \"+t)}return this},clone:function(){return new this.constructor(this.r,this.g,this.b)},copy:function(t){return this.r=t.r,this.g=t.g,this.b=t.b,this},copyGammaToLinear:function(t,e){return void 0===e&&(e=2),this.r=Math.pow(t.r,e),this.g=Math.pow(t.g,e),this.b=Math.pow(t.b,e),this},copyLinearToGamma:function(t,e){void 0===e&&(e=2);var i=e>0?1/e:1;return this.r=Math.pow(t.r,i),this.g=Math.pow(t.g,i),this.b=Math.pow(t.b,i),this},convertGammaToLinear:function(){var t=this.r,e=this.g,i=this.b;return this.r=t*t,this.g=e*e,this.b=i*i,this},convertLinearToGamma:function(){return 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o},alphaMap:{value:null}},specularmap:{specularMap:{value:null}},envmap:{envMap:{value:null},flipEnvMap:{value:-1},reflectivity:{value:1},refractionRatio:{value:.98}},aomap:{aoMap:{value:null},aoMapIntensity:{value:1}},lightmap:{lightMap:{value:null},lightMapIntensity:{value:1}},emissivemap:{emissiveMap:{value:null}},bumpmap:{bumpMap:{value:null},bumpScale:{value:1}},normalmap:{normalMap:{value:null},normalScale:{value:new i(1,1)}},displacementmap:{displacementMap:{value:null},displacementScale:{value:1},displacementBias:{value:0}},roughnessmap:{roughnessMap:{value:null}},metalnessmap:{metalnessMap:{value:null}},gradientmap:{gradientMap:{value:null}},fog:{fogDensity:{value:25e-5},fogNear:{value:1},fogFar:{value:2e3},fogColor:{value:new q(16777215)}},lights:{ambientLightColor:{value:[]},directionalLights:{value:[],properties:{direction:{},color:{},shadow:{},shadowBias:{},shadowRadius:{},shadowMapSize:{}}},directionalShadowMap:{value:[]},directionalShadowMatrix:{value:[]},spotLights:{value:[],properties:{color:{},position:{},direction:{},distance:{},coneCos:{},penumbraCos:{},decay:{},shadow:{},shadowBias:{},shadowRadius:{},shadowMapSize:{}}},spotShadowMap:{value:[]},spotShadowMatrix:{value:[]},pointLights:{value:[],properties:{color:{},position:{},decay:{},distance:{},shadow:{},shadowBias:{},shadowRadius:{},shadowMapSize:{},shadowCameraNear:{},shadowCameraFar:{}}},pointShadowMap:{value:[]},pointShadowMatrix:{value:[]},hemisphereLights:{value:[],properties:{direction:{},skyColor:{},groundColor:{}}},rectAreaLights:{value:[],properties:{color:{},position:{},width:{},height:{}}}},points:{diffuse:{value:new q(15658734)},opacity:{value:1},size:{value:1},scale:{value:1},map:{value:null},uvTransform:{value:new o}}},Ss={merge:function(t){for(var e={},i=0;i<t.length;i++){var n=this.clone(t[i]);for(var r in n)e[r]=n[r]}return e},clone:function(t){var e={};for(var i in t){e[i]={};for(var n in t[i]){var r=t[i][n];r&&(r.isColor||r.isMatrix3||r.isMatrix4||r.isVector2||r.isVector3||r.isVector4||r.isTexture)?e[i][n]=r.clone():Array.isArray(r)?e[i][n]=r.slice():e[i][n]=r}}return e}},As={alphamap_fragment:\"#ifdef USE_ALPHAMAP\\n\\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\\n#endif\\n\",alphamap_pars_fragment:\"#ifdef USE_ALPHAMAP\\n\\tuniform sampler2D alphaMap;\\n#endif\\n\",alphatest_fragment:\"#ifdef ALPHATEST\\n\\tif ( diffuseColor.a < ALPHATEST ) discard;\\n#endif\\n\",aomap_fragment:\"#ifdef USE_AOMAP\\n\\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\\n\\treflectedLight.indirectDiffuse *= ambientOcclusion;\\n\\t#if defined( USE_ENVMAP ) && defined( PHYSICAL )\\n\\t\\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\\n\\t\\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.specularRoughness );\\n\\t#endif\\n#endif\\n\",aomap_pars_fragment:\"#ifdef USE_AOMAP\\n\\tuniform sampler2D aoMap;\\n\\tuniform float aoMapIntensity;\\n#endif\",begin_vertex:\"\\nvec3 transformed = vec3( position );\\n\",beginnormal_vertex:\"\\nvec3 objectNormal = vec3( normal );\\n\",bsdfs:\"float punctualLightIntensityToIrradianceFactor( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\\n\\tif( decayExponent > 0.0 ) {\\n#if defined ( PHYSICALLY_CORRECT_LIGHTS )\\n\\t\\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\\n\\t\\tfloat maxDistanceCutoffFactor = pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\\n\\t\\treturn distanceFalloff * maxDistanceCutoffFactor;\\n#else\\n\\t\\treturn pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );\\n#endif\\n\\t}\\n\\treturn 1.0;\\n}\\nvec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {\\n\\treturn RECIPROCAL_PI * diffuseColor;\\n}\\nvec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {\\n\\tfloat fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );\\n\\treturn ( 1.0 - specularColor ) * fresnel + specularColor;\\n}\\nfloat G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {\\n\\tfloat a2 = pow2( alpha );\\n\\tfloat gl = dotNL + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\\n\\tfloat gv = dotNV + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\\n\\treturn 1.0 / ( gl * gv );\\n}\\nfloat G_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\\n\\tfloat a2 = pow2( alpha );\\n\\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\\n\\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\\n\\treturn 0.5 / max( gv + gl, EPSILON );\\n}\\nfloat D_GGX( const in float alpha, const in float dotNH ) {\\n\\tfloat a2 = pow2( alpha );\\n\\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\\n\\treturn RECIPROCAL_PI * a2 / pow2( denom );\\n}\\nvec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\\n\\tfloat alpha = pow2( roughness );\\n\\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\\n\\tfloat dotNL = saturate( dot( geometry.normal, incidentLight.direction ) );\\n\\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\\n\\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\\n\\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\\n\\tvec3 F = F_Schlick( specularColor, dotLH );\\n\\tfloat G = G_GGX_SmithCorrelated( alpha, dotNL, dotNV );\\n\\tfloat D = D_GGX( alpha, dotNH );\\n\\treturn F * ( G * D );\\n}\\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\\n\\tconst float LUT_SIZE  = 64.0;\\n\\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\\n\\tconst float LUT_BIAS  = 0.5 / LUT_SIZE;\\n\\tfloat theta = acos( dot( N, V ) );\\n\\tvec2 uv = vec2(\\n\\t\\tsqrt( saturate( roughness ) ),\\n\\t\\tsaturate( theta / ( 0.5 * PI ) ) );\\n\\tuv = uv * LUT_SCALE + LUT_BIAS;\\n\\treturn uv;\\n}\\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\\n\\tfloat l = length( f );\\n\\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\\n}\\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\\n\\tfloat x = dot( v1, v2 );\\n\\tfloat y = abs( x );\\n\\tfloat a = 0.86267 + (0.49788 + 0.01436 * y ) * y;\\n\\tfloat b = 3.45068 + (4.18814 + y) * y;\\n\\tfloat v = a / b;\\n\\tfloat theta_sintheta = (x > 0.0) ? v : 0.5 * inversesqrt( 1.0 - x * x ) - v;\\n\\treturn cross( v1, v2 ) * theta_sintheta;\\n}\\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\\n\\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\\n\\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\\n\\tvec3 lightNormal = cross( v1, v2 );\\n\\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\\n\\tvec3 T1, T2;\\n\\tT1 = normalize( V - N * dot( V, N ) );\\n\\tT2 = - cross( N, T1 );\\n\\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\\n\\tvec3 coords[ 4 ];\\n\\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\\n\\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\\n\\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\\n\\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\\n\\tcoords[ 0 ] = normalize( coords[ 0 ] );\\n\\tcoords[ 1 ] = normalize( coords[ 1 ] );\\n\\tcoords[ 2 ] = normalize( coords[ 2 ] );\\n\\tcoords[ 3 ] = normalize( coords[ 3 ] );\\n\\tvec3 vectorFormFactor = vec3( 0.0 );\\n\\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\\n\\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\\n\\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\\n\\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\\n\\tvec3 result = vec3( LTC_ClippedSphereFormFactor( vectorFormFactor ) );\\n\\treturn result;\\n}\\nvec3 BRDF_Specular_GGX_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\\n\\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\\n\\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\\n\\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\\n\\tvec4 r = roughness * c0 + c1;\\n\\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\\n\\tvec2 AB = vec2( -1.04, 1.04 ) * a004 + r.zw;\\n\\treturn specularColor * AB.x + AB.y;\\n}\\nfloat G_BlinnPhong_Implicit( ) {\\n\\treturn 0.25;\\n}\\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\\n\\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\\n}\\nvec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {\\n\\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\\n\\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\\n\\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\\n\\tvec3 F = F_Schlick( specularColor, dotLH );\\n\\tfloat G = G_BlinnPhong_Implicit( );\\n\\tfloat D = D_BlinnPhong( shininess, dotNH );\\n\\treturn F * ( G * D );\\n}\\nfloat GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {\\n\\treturn ( 2.0 / pow2( ggxRoughness + 0.0001 ) - 2.0 );\\n}\\nfloat BlinnExponentToGGXRoughness( const in float blinnExponent ) {\\n\\treturn sqrt( 2.0 / ( blinnExponent + 2.0 ) );\\n}\\n\",bumpmap_pars_fragment:\"#ifdef USE_BUMPMAP\\n\\tuniform sampler2D bumpMap;\\n\\tuniform float bumpScale;\\n\\tvec2 dHdxy_fwd() {\\n\\t\\tvec2 dSTdx = dFdx( vUv );\\n\\t\\tvec2 dSTdy = dFdy( vUv );\\n\\t\\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\\n\\t\\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\\n\\t\\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\\n\\t\\treturn vec2( dBx, dBy );\\n\\t}\\n\\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy ) {\\n\\t\\tvec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );\\n\\t\\tvec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );\\n\\t\\tvec3 vN = surf_norm;\\n\\t\\tvec3 R1 = cross( vSigmaY, vN );\\n\\t\\tvec3 R2 = cross( vN, vSigmaX );\\n\\t\\tfloat fDet = dot( vSigmaX, R1 );\\n\\t\\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\\n\\t\\treturn normalize( abs( fDet ) * surf_norm - vGrad );\\n\\t}\\n#endif\\n\",clipping_planes_fragment:\"#if NUM_CLIPPING_PLANES > 0\\n\\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; ++ i ) {\\n\\t\\tvec4 plane = clippingPlanes[ i ];\\n\\t\\tif ( dot( vViewPosition, plane.xyz ) > plane.w ) discard;\\n\\t}\\n\\t\\t\\n\\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\\n\\t\\tbool clipped = true;\\n\\t\\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; ++ i ) {\\n\\t\\t\\tvec4 plane = clippingPlanes[ i ];\\n\\t\\t\\tclipped = ( dot( vViewPosition, plane.xyz ) > plane.w ) && clipped;\\n\\t\\t}\\n\\t\\tif ( clipped ) discard;\\n\\t\\n\\t#endif\\n#endif\\n\",clipping_planes_pars_fragment:\"#if NUM_CLIPPING_PLANES > 0\\n\\t#if ! defined( PHYSICAL ) && ! defined( PHONG )\\n\\t\\tvarying vec3 vViewPosition;\\n\\t#endif\\n\\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\\n#endif\\n\",clipping_planes_pars_vertex:\"#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG )\\n\\tvarying vec3 vViewPosition;\\n#endif\\n\",clipping_planes_vertex:\"#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG )\\n\\tvViewPosition = - mvPosition.xyz;\\n#endif\\n\",color_fragment:\"#ifdef USE_COLOR\\n\\tdiffuseColor.rgb *= vColor;\\n#endif\",color_pars_fragment:\"#ifdef USE_COLOR\\n\\tvarying vec3 vColor;\\n#endif\\n\",color_pars_vertex:\"#ifdef USE_COLOR\\n\\tvarying vec3 vColor;\\n#endif\",color_vertex:\"#ifdef USE_COLOR\\n\\tvColor.xyz = color.xyz;\\n#endif\",common:\"#define PI 3.14159265359\\n#define PI2 6.28318530718\\n#define PI_HALF 1.5707963267949\\n#define RECIPROCAL_PI 0.31830988618\\n#define RECIPROCAL_PI2 0.15915494\\n#define LOG2 1.442695\\n#define EPSILON 1e-6\\n#define saturate(a) clamp( a, 0.0, 1.0 )\\n#define whiteCompliment(a) ( 1.0 - saturate( a ) )\\nfloat pow2( const in float x ) { return x*x; }\\nfloat pow3( const in float x ) { return x*x*x; }\\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\\nhighp float rand( const in vec2 uv ) {\\n\\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\\n\\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\\n\\treturn fract(sin(sn) * c);\\n}\\nstruct IncidentLight {\\n\\tvec3 color;\\n\\tvec3 direction;\\n\\tbool visible;\\n};\\nstruct ReflectedLight {\\n\\tvec3 directDiffuse;\\n\\tvec3 directSpecular;\\n\\tvec3 indirectDiffuse;\\n\\tvec3 indirectSpecular;\\n};\\nstruct GeometricContext {\\n\\tvec3 position;\\n\\tvec3 normal;\\n\\tvec3 viewDir;\\n};\\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\\n\\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\\n}\\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\\n\\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\\n}\\nvec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\\n\\tfloat distance = dot( planeNormal, point - pointOnPlane );\\n\\treturn - distance * planeNormal + point;\\n}\\nfloat sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\\n\\treturn sign( dot( point - pointOnPlane, planeNormal ) );\\n}\\nvec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {\\n\\treturn lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;\\n}\\nmat3 transposeMat3( const in mat3 m ) {\\n\\tmat3 tmp;\\n\\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\\n\\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\\n\\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\\n\\treturn tmp;\\n}\\nfloat linearToRelativeLuminance( const in vec3 color ) {\\n\\tvec3 weights = vec3( 0.2126, 0.7152, 0.0722 );\\n\\treturn dot( weights, color.rgb );\\n}\\n\",cube_uv_reflection_fragment:\"#ifdef ENVMAP_TYPE_CUBE_UV\\n#define cubeUV_textureSize (1024.0)\\nint getFaceFromDirection(vec3 direction) {\\n\\tvec3 absDirection = abs(direction);\\n\\tint face = -1;\\n\\tif( absDirection.x > absDirection.z ) {\\n\\t\\tif(absDirection.x > absDirection.y )\\n\\t\\t\\tface = direction.x > 0.0 ? 0 : 3;\\n\\t\\telse\\n\\t\\t\\tface = direction.y > 0.0 ? 1 : 4;\\n\\t}\\n\\telse {\\n\\t\\tif(absDirection.z > absDirection.y )\\n\\t\\t\\tface = direction.z > 0.0 ? 2 : 5;\\n\\t\\telse\\n\\t\\t\\tface = direction.y > 0.0 ? 1 : 4;\\n\\t}\\n\\treturn face;\\n}\\n#define cubeUV_maxLods1  (log2(cubeUV_textureSize*0.25) - 1.0)\\n#define cubeUV_rangeClamp (exp2((6.0 - 1.0) * 2.0))\\nvec2 MipLevelInfo( vec3 vec, float roughnessLevel, float roughness ) {\\n\\tfloat scale = exp2(cubeUV_maxLods1 - roughnessLevel);\\n\\tfloat dxRoughness = dFdx(roughness);\\n\\tfloat dyRoughness = dFdy(roughness);\\n\\tvec3 dx = dFdx( vec * scale * dxRoughness );\\n\\tvec3 dy = dFdy( vec * scale * dyRoughness );\\n\\tfloat d = max( dot( dx, dx ), dot( dy, dy ) );\\n\\td = clamp(d, 1.0, cubeUV_rangeClamp);\\n\\tfloat mipLevel = 0.5 * log2(d);\\n\\treturn vec2(floor(mipLevel), fract(mipLevel));\\n}\\n#define cubeUV_maxLods2 (log2(cubeUV_textureSize*0.25) - 2.0)\\n#define cubeUV_rcpTextureSize (1.0 / cubeUV_textureSize)\\nvec2 getCubeUV(vec3 direction, float roughnessLevel, float mipLevel) {\\n\\tmipLevel = roughnessLevel > cubeUV_maxLods2 - 3.0 ? 0.0 : mipLevel;\\n\\tfloat a = 16.0 * cubeUV_rcpTextureSize;\\n\\tvec2 exp2_packed = exp2( vec2( roughnessLevel, mipLevel ) );\\n\\tvec2 rcp_exp2_packed = vec2( 1.0 ) / exp2_packed;\\n\\tfloat powScale = exp2_packed.x * exp2_packed.y;\\n\\tfloat scale = rcp_exp2_packed.x * rcp_exp2_packed.y * 0.25;\\n\\tfloat mipOffset = 0.75*(1.0 - rcp_exp2_packed.y) * rcp_exp2_packed.x;\\n\\tbool bRes = mipLevel == 0.0;\\n\\tscale =  bRes && (scale < a) ? a : scale;\\n\\tvec3 r;\\n\\tvec2 offset;\\n\\tint face = getFaceFromDirection(direction);\\n\\tfloat rcpPowScale = 1.0 / powScale;\\n\\tif( face == 0) {\\n\\t\\tr = vec3(direction.x, -direction.z, direction.y);\\n\\t\\toffset = vec2(0.0+mipOffset,0.75 * rcpPowScale);\\n\\t\\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\\n\\t}\\n\\telse if( face == 1) {\\n\\t\\tr = vec3(direction.y, direction.x, direction.z);\\n\\t\\toffset = vec2(scale+mipOffset, 0.75 * rcpPowScale);\\n\\t\\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\\n\\t}\\n\\telse if( face == 2) {\\n\\t\\tr = vec3(direction.z, direction.x, direction.y);\\n\\t\\toffset = vec2(2.0*scale+mipOffset, 0.75 * rcpPowScale);\\n\\t\\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\\n\\t}\\n\\telse if( face == 3) {\\n\\t\\tr = vec3(direction.x, direction.z, direction.y);\\n\\t\\toffset = vec2(0.0+mipOffset,0.5 * rcpPowScale);\\n\\t\\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\\n\\t}\\n\\telse if( face == 4) {\\n\\t\\tr = vec3(direction.y, direction.x, -direction.z);\\n\\t\\toffset = vec2(scale+mipOffset, 0.5 * rcpPowScale);\\n\\t\\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\\n\\t}\\n\\telse {\\n\\t\\tr = vec3(direction.z, -direction.x, direction.y);\\n\\t\\toffset = vec2(2.0*scale+mipOffset, 0.5 * rcpPowScale);\\n\\t\\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\\n\\t}\\n\\tr = normalize(r);\\n\\tfloat texelOffset = 0.5 * cubeUV_rcpTextureSize;\\n\\tvec2 s = ( r.yz / abs( r.x ) + vec2( 1.0 ) ) * 0.5;\\n\\tvec2 base = offset + vec2( texelOffset );\\n\\treturn base + s * ( scale - 2.0 * texelOffset );\\n}\\n#define cubeUV_maxLods3 (log2(cubeUV_textureSize*0.25) - 3.0)\\nvec4 textureCubeUV(vec3 reflectedDirection, float roughness ) {\\n\\tfloat roughnessVal = roughness* cubeUV_maxLods3;\\n\\tfloat r1 = floor(roughnessVal);\\n\\tfloat r2 = r1 + 1.0;\\n\\tfloat t = fract(roughnessVal);\\n\\tvec2 mipInfo = MipLevelInfo(reflectedDirection, r1, roughness);\\n\\tfloat s = mipInfo.y;\\n\\tfloat level0 = mipInfo.x;\\n\\tfloat level1 = level0 + 1.0;\\n\\tlevel1 = level1 > 5.0 ? 5.0 : level1;\\n\\tlevel0 += min( floor( s + 0.5 ), 5.0 );\\n\\tvec2 uv_10 = getCubeUV(reflectedDirection, r1, level0);\\n\\tvec4 color10 = envMapTexelToLinear(texture2D(envMap, uv_10));\\n\\tvec2 uv_20 = getCubeUV(reflectedDirection, r2, level0);\\n\\tvec4 color20 = envMapTexelToLinear(texture2D(envMap, uv_20));\\n\\tvec4 result = mix(color10, color20, t);\\n\\treturn vec4(result.rgb, 1.0);\\n}\\n#endif\\n\",defaultnormal_vertex:\"vec3 transformedNormal = normalMatrix * objectNormal;\\n#ifdef FLIP_SIDED\\n\\ttransformedNormal = - transformedNormal;\\n#endif\\n\",displacementmap_pars_vertex:\"#ifdef USE_DISPLACEMENTMAP\\n\\tuniform sampler2D displacementMap;\\n\\tuniform float displacementScale;\\n\\tuniform float displacementBias;\\n#endif\\n\",displacementmap_vertex:\"#ifdef USE_DISPLACEMENTMAP\\n\\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, uv ).x * displacementScale + displacementBias );\\n#endif\\n\",emissivemap_fragment:\"#ifdef USE_EMISSIVEMAP\\n\\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\\n\\temissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;\\n\\ttotalEmissiveRadiance *= emissiveColor.rgb;\\n#endif\\n\",emissivemap_pars_fragment:\"#ifdef USE_EMISSIVEMAP\\n\\tuniform sampler2D emissiveMap;\\n#endif\\n\",encodings_fragment:\"  gl_FragColor = linearToOutputTexel( gl_FragColor );\\n\",\nencodings_pars_fragment:\"\\nvec4 LinearToLinear( in vec4 value ) {\\n\\treturn value;\\n}\\nvec4 GammaToLinear( in vec4 value, in float gammaFactor ) {\\n\\treturn vec4( pow( value.xyz, vec3( gammaFactor ) ), value.w );\\n}\\nvec4 LinearToGamma( in vec4 value, in float gammaFactor ) {\\n\\treturn vec4( pow( value.xyz, vec3( 1.0 / gammaFactor ) ), value.w );\\n}\\nvec4 sRGBToLinear( in vec4 value ) {\\n\\treturn vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.w );\\n}\\nvec4 LinearTosRGB( in vec4 value ) {\\n\\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.w );\\n}\\nvec4 RGBEToLinear( in vec4 value ) {\\n\\treturn vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );\\n}\\nvec4 LinearToRGBE( in vec4 value ) {\\n\\tfloat maxComponent = max( max( value.r, value.g ), value.b );\\n\\tfloat fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );\\n\\treturn vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );\\n}\\nvec4 RGBMToLinear( in vec4 value, in float maxRange ) {\\n\\treturn vec4( value.xyz * value.w * maxRange, 1.0 );\\n}\\nvec4 LinearToRGBM( in vec4 value, in float maxRange ) {\\n\\tfloat maxRGB = max( value.x, max( value.g, value.b ) );\\n\\tfloat M      = clamp( maxRGB / maxRange, 0.0, 1.0 );\\n\\tM            = ceil( M * 255.0 ) / 255.0;\\n\\treturn vec4( value.rgb / ( M * maxRange ), M );\\n}\\nvec4 RGBDToLinear( in vec4 value, in float maxRange ) {\\n\\treturn vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );\\n}\\nvec4 LinearToRGBD( in vec4 value, in float maxRange ) {\\n\\tfloat maxRGB = max( value.x, max( value.g, value.b ) );\\n\\tfloat D      = max( maxRange / maxRGB, 1.0 );\\n\\tD            = min( floor( D ) / 255.0, 1.0 );\\n\\treturn vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );\\n}\\nconst mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );\\nvec4 LinearToLogLuv( in vec4 value )  {\\n\\tvec3 Xp_Y_XYZp = value.rgb * cLogLuvM;\\n\\tXp_Y_XYZp = max(Xp_Y_XYZp, vec3(1e-6, 1e-6, 1e-6));\\n\\tvec4 vResult;\\n\\tvResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;\\n\\tfloat Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;\\n\\tvResult.w = fract(Le);\\n\\tvResult.z = (Le - (floor(vResult.w*255.0))/255.0)/255.0;\\n\\treturn vResult;\\n}\\nconst mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );\\nvec4 LogLuvToLinear( in vec4 value ) {\\n\\tfloat Le = value.z * 255.0 + value.w;\\n\\tvec3 Xp_Y_XYZp;\\n\\tXp_Y_XYZp.y = exp2((Le - 127.0) / 2.0);\\n\\tXp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;\\n\\tXp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;\\n\\tvec3 vRGB = Xp_Y_XYZp.rgb * cLogLuvInverseM;\\n\\treturn vec4( max(vRGB, 0.0), 1.0 );\\n}\\n\",envmap_fragment:\"#ifdef USE_ENVMAP\\n\\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\\n\\t\\tvec3 cameraToVertex = normalize( vWorldPosition - cameraPosition );\\n\\t\\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\\n\\t\\t#ifdef ENVMAP_MODE_REFLECTION\\n\\t\\t\\tvec3 reflectVec = reflect( cameraToVertex, worldNormal );\\n\\t\\t#else\\n\\t\\t\\tvec3 reflectVec = refract( cameraToVertex, worldNormal, refractionRatio );\\n\\t\\t#endif\\n\\t#else\\n\\t\\tvec3 reflectVec = vReflect;\\n\\t#endif\\n\\t#ifdef ENVMAP_TYPE_CUBE\\n\\t\\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\\n\\t#elif defined( ENVMAP_TYPE_EQUIREC )\\n\\t\\tvec2 sampleUV;\\n\\t\\treflectVec = normalize( reflectVec );\\n\\t\\tsampleUV.y = asin( clamp( reflectVec.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\\n\\t\\tsampleUV.x = atan( reflectVec.z, reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\\n\\t\\tvec4 envColor = texture2D( envMap, sampleUV );\\n\\t#elif defined( ENVMAP_TYPE_SPHERE )\\n\\t\\treflectVec = normalize( reflectVec );\\n\\t\\tvec3 reflectView = normalize( ( viewMatrix * vec4( reflectVec, 0.0 ) ).xyz + vec3( 0.0, 0.0, 1.0 ) );\\n\\t\\tvec4 envColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5 );\\n\\t#else\\n\\t\\tvec4 envColor = vec4( 0.0 );\\n\\t#endif\\n\\tenvColor = envMapTexelToLinear( envColor );\\n\\t#ifdef ENVMAP_BLENDING_MULTIPLY\\n\\t\\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\\n\\t#elif defined( ENVMAP_BLENDING_MIX )\\n\\t\\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\\n\\t#elif defined( ENVMAP_BLENDING_ADD )\\n\\t\\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\\n\\t#endif\\n#endif\\n\",envmap_pars_fragment:\"#if defined( USE_ENVMAP ) || defined( PHYSICAL )\\n\\tuniform float reflectivity;\\n\\tuniform float envMapIntensity;\\n#endif\\n#ifdef USE_ENVMAP\\n\\t#if ! defined( PHYSICAL ) && ( defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) )\\n\\t\\tvarying vec3 vWorldPosition;\\n\\t#endif\\n\\t#ifdef ENVMAP_TYPE_CUBE\\n\\t\\tuniform samplerCube envMap;\\n\\t#else\\n\\t\\tuniform sampler2D envMap;\\n\\t#endif\\n\\tuniform float flipEnvMap;\\n\\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) || defined( PHYSICAL )\\n\\t\\tuniform float refractionRatio;\\n\\t#else\\n\\t\\tvarying vec3 vReflect;\\n\\t#endif\\n#endif\\n\",envmap_pars_vertex:\"#ifdef USE_ENVMAP\\n\\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\\n\\t\\tvarying vec3 vWorldPosition;\\n\\t#else\\n\\t\\tvarying vec3 vReflect;\\n\\t\\tuniform float refractionRatio;\\n\\t#endif\\n#endif\\n\",envmap_vertex:\"#ifdef USE_ENVMAP\\n\\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\\n\\t\\tvWorldPosition = worldPosition.xyz;\\n\\t#else\\n\\t\\tvec3 cameraToVertex = normalize( worldPosition.xyz - cameraPosition );\\n\\t\\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\\n\\t\\t#ifdef ENVMAP_MODE_REFLECTION\\n\\t\\t\\tvReflect = reflect( cameraToVertex, worldNormal );\\n\\t\\t#else\\n\\t\\t\\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\\n\\t\\t#endif\\n\\t#endif\\n#endif\\n\",fog_vertex:\"\\n#ifdef USE_FOG\\nfogDepth = -mvPosition.z;\\n#endif\",fog_pars_vertex:\"#ifdef USE_FOG\\n  varying float fogDepth;\\n#endif\\n\",fog_fragment:\"#ifdef USE_FOG\\n\\t#ifdef FOG_EXP2\\n\\t\\tfloat fogFactor = whiteCompliment( exp2( - fogDensity * fogDensity * fogDepth * fogDepth * LOG2 ) );\\n\\t#else\\n\\t\\tfloat fogFactor = smoothstep( fogNear, fogFar, fogDepth );\\n\\t#endif\\n\\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\\n#endif\\n\",fog_pars_fragment:\"#ifdef USE_FOG\\n\\tuniform vec3 fogColor;\\n\\tvarying float fogDepth;\\n\\t#ifdef FOG_EXP2\\n\\t\\tuniform float fogDensity;\\n\\t#else\\n\\t\\tuniform float fogNear;\\n\\t\\tuniform float fogFar;\\n\\t#endif\\n#endif\\n\",gradientmap_pars_fragment:\"#ifdef TOON\\n\\tuniform sampler2D gradientMap;\\n\\tvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\\n\\t\\tfloat dotNL = dot( normal, lightDirection );\\n\\t\\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\\n\\t\\t#ifdef USE_GRADIENTMAP\\n\\t\\t\\treturn texture2D( gradientMap, coord ).rgb;\\n\\t\\t#else\\n\\t\\t\\treturn ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );\\n\\t\\t#endif\\n\\t}\\n#endif\\n\",lightmap_fragment:\"#ifdef USE_LIGHTMAP\\n\\treflectedLight.indirectDiffuse += PI * texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\\n#endif\\n\",lightmap_pars_fragment:\"#ifdef USE_LIGHTMAP\\n\\tuniform sampler2D lightMap;\\n\\tuniform float lightMapIntensity;\\n#endif\",lights_lambert_vertex:\"vec3 diffuse = vec3( 1.0 );\\nGeometricContext geometry;\\ngeometry.position = mvPosition.xyz;\\ngeometry.normal = normalize( transformedNormal );\\ngeometry.viewDir = normalize( -mvPosition.xyz );\\nGeometricContext backGeometry;\\nbackGeometry.position = geometry.position;\\nbackGeometry.normal = -geometry.normal;\\nbackGeometry.viewDir = geometry.viewDir;\\nvLightFront = vec3( 0.0 );\\n#ifdef DOUBLE_SIDED\\n\\tvLightBack = vec3( 0.0 );\\n#endif\\nIncidentLight directLight;\\nfloat dotNL;\\nvec3 directLightColor_Diffuse;\\n#if NUM_POINT_LIGHTS > 0\\n\\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\\n\\t\\tgetPointDirectLightIrradiance( pointLights[ i ], geometry, directLight );\\n\\t\\tdotNL = dot( geometry.normal, directLight.direction );\\n\\t\\tdirectLightColor_Diffuse = PI * directLight.color;\\n\\t\\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\\n\\t\\t#ifdef DOUBLE_SIDED\\n\\t\\t\\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\\n\\t\\t#endif\\n\\t}\\n#endif\\n#if NUM_SPOT_LIGHTS > 0\\n\\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\\n\\t\\tgetSpotDirectLightIrradiance( spotLights[ i ], geometry, directLight );\\n\\t\\tdotNL = dot( geometry.normal, directLight.direction );\\n\\t\\tdirectLightColor_Diffuse = PI * directLight.color;\\n\\t\\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\\n\\t\\t#ifdef DOUBLE_SIDED\\n\\t\\t\\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\\n\\t\\t#endif\\n\\t}\\n#endif\\n#if NUM_DIR_LIGHTS > 0\\n\\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\\n\\t\\tgetDirectionalDirectLightIrradiance( directionalLights[ i ], geometry, directLight );\\n\\t\\tdotNL = dot( geometry.normal, directLight.direction );\\n\\t\\tdirectLightColor_Diffuse = PI * directLight.color;\\n\\t\\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\\n\\t\\t#ifdef DOUBLE_SIDED\\n\\t\\t\\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\\n\\t\\t#endif\\n\\t}\\n#endif\\n#if NUM_HEMI_LIGHTS > 0\\n\\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\\n\\t\\tvLightFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\\n\\t\\t#ifdef DOUBLE_SIDED\\n\\t\\t\\tvLightBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry );\\n\\t\\t#endif\\n\\t}\\n#endif\\n\",lights_pars:\"uniform vec3 ambientLightColor;\\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\\n\\tvec3 irradiance = ambientLightColor;\\n\\t#ifndef PHYSICALLY_CORRECT_LIGHTS\\n\\t\\tirradiance *= PI;\\n\\t#endif\\n\\treturn irradiance;\\n}\\n#if NUM_DIR_LIGHTS > 0\\n\\tstruct DirectionalLight {\\n\\t\\tvec3 direction;\\n\\t\\tvec3 color;\\n\\t\\tint shadow;\\n\\t\\tfloat shadowBias;\\n\\t\\tfloat shadowRadius;\\n\\t\\tvec2 shadowMapSize;\\n\\t};\\n\\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\\n\\tvoid getDirectionalDirectLightIrradiance( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight directLight ) {\\n\\t\\tdirectLight.color = directionalLight.color;\\n\\t\\tdirectLight.direction = directionalLight.direction;\\n\\t\\tdirectLight.visible = true;\\n\\t}\\n#endif\\n#if NUM_POINT_LIGHTS > 0\\n\\tstruct PointLight {\\n\\t\\tvec3 position;\\n\\t\\tvec3 color;\\n\\t\\tfloat distance;\\n\\t\\tfloat decay;\\n\\t\\tint shadow;\\n\\t\\tfloat shadowBias;\\n\\t\\tfloat shadowRadius;\\n\\t\\tvec2 shadowMapSize;\\n\\t\\tfloat shadowCameraNear;\\n\\t\\tfloat shadowCameraFar;\\n\\t};\\n\\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\\n\\tvoid getPointDirectLightIrradiance( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight directLight ) {\\n\\t\\tvec3 lVector = pointLight.position - geometry.position;\\n\\t\\tdirectLight.direction = normalize( lVector );\\n\\t\\tfloat lightDistance = length( lVector );\\n\\t\\tdirectLight.color = pointLight.color;\\n\\t\\tdirectLight.color *= punctualLightIntensityToIrradianceFactor( lightDistance, pointLight.distance, pointLight.decay );\\n\\t\\tdirectLight.visible = ( directLight.color != vec3( 0.0 ) );\\n\\t}\\n#endif\\n#if NUM_SPOT_LIGHTS > 0\\n\\tstruct SpotLight {\\n\\t\\tvec3 position;\\n\\t\\tvec3 direction;\\n\\t\\tvec3 color;\\n\\t\\tfloat distance;\\n\\t\\tfloat decay;\\n\\t\\tfloat coneCos;\\n\\t\\tfloat penumbraCos;\\n\\t\\tint shadow;\\n\\t\\tfloat shadowBias;\\n\\t\\tfloat shadowRadius;\\n\\t\\tvec2 shadowMapSize;\\n\\t};\\n\\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\\n\\tvoid getSpotDirectLightIrradiance( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight directLight  ) {\\n\\t\\tvec3 lVector = spotLight.position - geometry.position;\\n\\t\\tdirectLight.direction = normalize( lVector );\\n\\t\\tfloat lightDistance = length( lVector );\\n\\t\\tfloat angleCos = dot( directLight.direction, spotLight.direction );\\n\\t\\tif ( angleCos > spotLight.coneCos ) {\\n\\t\\t\\tfloat spotEffect = smoothstep( spotLight.coneCos, spotLight.penumbraCos, angleCos );\\n\\t\\t\\tdirectLight.color = spotLight.color;\\n\\t\\t\\tdirectLight.color *= spotEffect * punctualLightIntensityToIrradianceFactor( lightDistance, spotLight.distance, spotLight.decay );\\n\\t\\t\\tdirectLight.visible = true;\\n\\t\\t} else {\\n\\t\\t\\tdirectLight.color = vec3( 0.0 );\\n\\t\\t\\tdirectLight.visible = false;\\n\\t\\t}\\n\\t}\\n#endif\\n#if NUM_RECT_AREA_LIGHTS > 0\\n\\tstruct RectAreaLight {\\n\\t\\tvec3 color;\\n\\t\\tvec3 position;\\n\\t\\tvec3 halfWidth;\\n\\t\\tvec3 halfHeight;\\n\\t};\\n\\tuniform sampler2D ltcMat;\\tuniform sampler2D ltcMag;\\n\\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\\n#endif\\n#if NUM_HEMI_LIGHTS > 0\\n\\tstruct HemisphereLight {\\n\\t\\tvec3 direction;\\n\\t\\tvec3 skyColor;\\n\\t\\tvec3 groundColor;\\n\\t};\\n\\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\\n\\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {\\n\\t\\tfloat dotNL = dot( geometry.normal, hemiLight.direction );\\n\\t\\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\\n\\t\\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\\n\\t\\t#ifndef PHYSICALLY_CORRECT_LIGHTS\\n\\t\\t\\tirradiance *= PI;\\n\\t\\t#endif\\n\\t\\treturn irradiance;\\n\\t}\\n#endif\\n#if defined( USE_ENVMAP ) && defined( PHYSICAL )\\n\\tvec3 getLightProbeIndirectIrradiance( const in GeometricContext geometry, const in int maxMIPLevel ) {\\n\\t\\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\\n\\t\\t#ifdef ENVMAP_TYPE_CUBE\\n\\t\\t\\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\\n\\t\\t\\t#ifdef TEXTURE_LOD_EXT\\n\\t\\t\\t\\tvec4 envMapColor = textureCubeLodEXT( envMap, queryVec, float( maxMIPLevel ) );\\n\\t\\t\\t#else\\n\\t\\t\\t\\tvec4 envMapColor = textureCube( envMap, queryVec, float( maxMIPLevel ) );\\n\\t\\t\\t#endif\\n\\t\\t\\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\\n\\t\\t#elif defined( ENVMAP_TYPE_CUBE_UV )\\n\\t\\t\\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\\n\\t\\t\\tvec4 envMapColor = textureCubeUV( queryVec, 1.0 );\\n\\t\\t#else\\n\\t\\t\\tvec4 envMapColor = vec4( 0.0 );\\n\\t\\t#endif\\n\\t\\treturn PI * envMapColor.rgb * envMapIntensity;\\n\\t}\\n\\tfloat getSpecularMIPLevel( const in float blinnShininessExponent, const in int maxMIPLevel ) {\\n\\t\\tfloat maxMIPLevelScalar = float( maxMIPLevel );\\n\\t\\tfloat desiredMIPLevel = maxMIPLevelScalar + 0.79248 - 0.5 * log2( pow2( blinnShininessExponent ) + 1.0 );\\n\\t\\treturn clamp( desiredMIPLevel, 0.0, maxMIPLevelScalar );\\n\\t}\\n\\tvec3 getLightProbeIndirectRadiance( const in GeometricContext geometry, const in float blinnShininessExponent, const in int maxMIPLevel ) {\\n\\t\\t#ifdef ENVMAP_MODE_REFLECTION\\n\\t\\t\\tvec3 reflectVec = reflect( -geometry.viewDir, geometry.normal );\\n\\t\\t#else\\n\\t\\t\\tvec3 reflectVec = refract( -geometry.viewDir, geometry.normal, refractionRatio );\\n\\t\\t#endif\\n\\t\\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\\n\\t\\tfloat specularMIPLevel = getSpecularMIPLevel( blinnShininessExponent, maxMIPLevel );\\n\\t\\t#ifdef ENVMAP_TYPE_CUBE\\n\\t\\t\\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\\n\\t\\t\\t#ifdef TEXTURE_LOD_EXT\\n\\t\\t\\t\\tvec4 envMapColor = textureCubeLodEXT( envMap, queryReflectVec, specularMIPLevel );\\n\\t\\t\\t#else\\n\\t\\t\\t\\tvec4 envMapColor = textureCube( envMap, queryReflectVec, specularMIPLevel );\\n\\t\\t\\t#endif\\n\\t\\t\\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\\n\\t\\t#elif defined( ENVMAP_TYPE_CUBE_UV )\\n\\t\\t\\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\\n\\t\\t\\tvec4 envMapColor = textureCubeUV(queryReflectVec, BlinnExponentToGGXRoughness(blinnShininessExponent));\\n\\t\\t#elif defined( ENVMAP_TYPE_EQUIREC )\\n\\t\\t\\tvec2 sampleUV;\\n\\t\\t\\tsampleUV.y = asin( clamp( reflectVec.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\\n\\t\\t\\tsampleUV.x = atan( reflectVec.z, reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\\n\\t\\t\\t#ifdef TEXTURE_LOD_EXT\\n\\t\\t\\t\\tvec4 envMapColor = texture2DLodEXT( envMap, sampleUV, specularMIPLevel );\\n\\t\\t\\t#else\\n\\t\\t\\t\\tvec4 envMapColor = texture2D( envMap, sampleUV, specularMIPLevel );\\n\\t\\t\\t#endif\\n\\t\\t\\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\\n\\t\\t#elif defined( ENVMAP_TYPE_SPHERE )\\n\\t\\t\\tvec3 reflectView = normalize( ( viewMatrix * vec4( reflectVec, 0.0 ) ).xyz + vec3( 0.0,0.0,1.0 ) );\\n\\t\\t\\t#ifdef TEXTURE_LOD_EXT\\n\\t\\t\\t\\tvec4 envMapColor = texture2DLodEXT( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\\n\\t\\t\\t#else\\n\\t\\t\\t\\tvec4 envMapColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\\n\\t\\t\\t#endif\\n\\t\\t\\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\\n\\t\\t#endif\\n\\t\\treturn envMapColor.rgb * envMapIntensity;\\n\\t}\\n#endif\\n\",lights_phong_fragment:\"BlinnPhongMaterial material;\\nmaterial.diffuseColor = diffuseColor.rgb;\\nmaterial.specularColor = specular;\\nmaterial.specularShininess = shininess;\\nmaterial.specularStrength = specularStrength;\\n\",lights_phong_pars_fragment:\"varying vec3 vViewPosition;\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\nstruct BlinnPhongMaterial {\\n\\tvec3\\tdiffuseColor;\\n\\tvec3\\tspecularColor;\\n\\tfloat\\tspecularShininess;\\n\\tfloat\\tspecularStrength;\\n};\\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\\n\\t#ifdef TOON\\n\\t\\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\\n\\t#else\\n\\t\\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\\n\\t\\tvec3 irradiance = dotNL * directLight.color;\\n\\t#endif\\n\\t#ifndef PHYSICALLY_CORRECT_LIGHTS\\n\\t\\tirradiance *= PI;\\n\\t#endif\\n\\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\\n\\treflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;\\n}\\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\\n\\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\\n}\\n#define RE_Direct\\t\\t\\t\\tRE_Direct_BlinnPhong\\n#define RE_IndirectDiffuse\\t\\tRE_IndirectDiffuse_BlinnPhong\\n#define Material_LightProbeLOD( material )\\t(0)\\n\",lights_physical_fragment:\"PhysicalMaterial material;\\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\\nmaterial.specularRoughness = clamp( roughnessFactor, 0.04, 1.0 );\\n#ifdef STANDARD\\n\\tmaterial.specularColor = mix( vec3( DEFAULT_SPECULAR_COEFFICIENT ), diffuseColor.rgb, metalnessFactor );\\n#else\\n\\tmaterial.specularColor = mix( vec3( MAXIMUM_SPECULAR_COEFFICIENT * pow2( reflectivity ) ), diffuseColor.rgb, metalnessFactor );\\n\\tmaterial.clearCoat = saturate( clearCoat );\\tmaterial.clearCoatRoughness = clamp( clearCoatRoughness, 0.04, 1.0 );\\n#endif\\n\",lights_physical_pars_fragment:\"struct PhysicalMaterial {\\n\\tvec3\\tdiffuseColor;\\n\\tfloat\\tspecularRoughness;\\n\\tvec3\\tspecularColor;\\n\\t#ifndef STANDARD\\n\\t\\tfloat clearCoat;\\n\\t\\tfloat clearCoatRoughness;\\n\\t#endif\\n};\\n#define MAXIMUM_SPECULAR_COEFFICIENT 0.16\\n#define DEFAULT_SPECULAR_COEFFICIENT 0.04\\nfloat clearCoatDHRApprox( const in float roughness, const in float dotNL ) {\\n\\treturn DEFAULT_SPECULAR_COEFFICIENT + ( 1.0 - DEFAULT_SPECULAR_COEFFICIENT ) * ( pow( 1.0 - dotNL, 5.0 ) * pow( 1.0 - roughness, 2.0 ) );\\n}\\n#if NUM_RECT_AREA_LIGHTS > 0\\n\\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\\n\\t\\tvec3 normal = geometry.normal;\\n\\t\\tvec3 viewDir = geometry.viewDir;\\n\\t\\tvec3 position = geometry.position;\\n\\t\\tvec3 lightPos = rectAreaLight.position;\\n\\t\\tvec3 halfWidth = rectAreaLight.halfWidth;\\n\\t\\tvec3 halfHeight = rectAreaLight.halfHeight;\\n\\t\\tvec3 lightColor = rectAreaLight.color;\\n\\t\\tfloat roughness = material.specularRoughness;\\n\\t\\tvec3 rectCoords[ 4 ];\\n\\t\\trectCoords[ 0 ] = lightPos - halfWidth - halfHeight;\\t\\trectCoords[ 1 ] = lightPos + halfWidth - halfHeight;\\n\\t\\trectCoords[ 2 ] = lightPos + halfWidth + halfHeight;\\n\\t\\trectCoords[ 3 ] = lightPos - halfWidth + halfHeight;\\n\\t\\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\\n\\t\\tfloat norm = texture2D( ltcMag, uv ).a;\\n\\t\\tvec4 t = texture2D( ltcMat, uv );\\n\\t\\tmat3 mInv = mat3(\\n\\t\\t\\tvec3(   1,   0, t.y ),\\n\\t\\t\\tvec3(   0, t.z,   0 ),\\n\\t\\t\\tvec3( t.w,   0, t.x )\\n\\t\\t);\\n\\t\\treflectedLight.directSpecular += lightColor * material.specularColor * norm * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\\n\\t\\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1 ), rectCoords );\\n\\t}\\n#endif\\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\\n\\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\\n\\tvec3 irradiance = dotNL * directLight.color;\\n\\t#ifndef PHYSICALLY_CORRECT_LIGHTS\\n\\t\\tirradiance *= PI;\\n\\t#endif\\n\\t#ifndef STANDARD\\n\\t\\tfloat clearCoatDHR = material.clearCoat * clearCoatDHRApprox( material.clearCoatRoughness, dotNL );\\n\\t#else\\n\\t\\tfloat clearCoatDHR = 0.0;\\n\\t#endif\\n\\treflectedLight.directSpecular += ( 1.0 - clearCoatDHR ) * irradiance * BRDF_Specular_GGX( directLight, geometry, material.specularColor, material.specularRoughness );\\n\\treflectedLight.directDiffuse += ( 1.0 - clearCoatDHR ) * irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\\n\\t#ifndef STANDARD\\n\\t\\treflectedLight.directSpecular += irradiance * material.clearCoat * BRDF_Specular_GGX( directLight, geometry, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearCoatRoughness );\\n\\t#endif\\n}\\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\\n\\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\\n}\\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 clearCoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\\n\\t#ifndef STANDARD\\n\\t\\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\\n\\t\\tfloat dotNL = dotNV;\\n\\t\\tfloat clearCoatDHR = material.clearCoat * clearCoatDHRApprox( material.clearCoatRoughness, dotNL );\\n\\t#else\\n\\t\\tfloat clearCoatDHR = 0.0;\\n\\t#endif\\n\\treflectedLight.indirectSpecular += ( 1.0 - clearCoatDHR ) * radiance * BRDF_Specular_GGX_Environment( geometry, material.specularColor, material.specularRoughness );\\n\\t#ifndef STANDARD\\n\\t\\treflectedLight.indirectSpecular += clearCoatRadiance * material.clearCoat * BRDF_Specular_GGX_Environment( geometry, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearCoatRoughness );\\n\\t#endif\\n}\\n#define RE_Direct\\t\\t\\t\\tRE_Direct_Physical\\n#define RE_Direct_RectArea\\t\\tRE_Direct_RectArea_Physical\\n#define RE_IndirectDiffuse\\t\\tRE_IndirectDiffuse_Physical\\n#define RE_IndirectSpecular\\t\\tRE_IndirectSpecular_Physical\\n#define Material_BlinnShininessExponent( material )   GGXRoughnessToBlinnExponent( material.specularRoughness )\\n#define Material_ClearCoat_BlinnShininessExponent( material )   GGXRoughnessToBlinnExponent( material.clearCoatRoughness )\\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\\n\\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\\n}\\n\",lights_template:\"\\nGeometricContext geometry;\\ngeometry.position = - vViewPosition;\\ngeometry.normal = normal;\\ngeometry.viewDir = normalize( vViewPosition );\\nIncidentLight directLight;\\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\\n\\tPointLight pointLight;\\n\\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\\n\\t\\tpointLight = pointLights[ i ];\\n\\t\\tgetPointDirectLightIrradiance( pointLight, geometry, directLight );\\n\\t\\t#ifdef USE_SHADOWMAP\\n\\t\\tdirectLight.color *= all( bvec2( pointLight.shadow, directLight.visible ) ) ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\\n\\t\\t#endif\\n\\t\\tRE_Direct( directLight, geometry, material, reflectedLight );\\n\\t}\\n#endif\\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\\n\\tSpotLight spotLight;\\n\\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\\n\\t\\tspotLight = spotLights[ i ];\\n\\t\\tgetSpotDirectLightIrradiance( spotLight, geometry, directLight );\\n\\t\\t#ifdef USE_SHADOWMAP\\n\\t\\tdirectLight.color *= all( bvec2( spotLight.shadow, directLight.visible ) ) ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\\n\\t\\t#endif\\n\\t\\tRE_Direct( directLight, geometry, material, reflectedLight );\\n\\t}\\n#endif\\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\\n\\tDirectionalLight directionalLight;\\n\\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\\n\\t\\tdirectionalLight = directionalLights[ i ];\\n\\t\\tgetDirectionalDirectLightIrradiance( directionalLight, geometry, directLight );\\n\\t\\t#ifdef USE_SHADOWMAP\\n\\t\\tdirectLight.color *= all( bvec2( directionalLight.shadow, directLight.visible ) ) ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\\n\\t\\t#endif\\n\\t\\tRE_Direct( directLight, geometry, material, reflectedLight );\\n\\t}\\n#endif\\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\\n\\tRectAreaLight rectAreaLight;\\n\\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\\n\\t\\trectAreaLight = rectAreaLights[ i ];\\n\\t\\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\\n\\t}\\n#endif\\n#if defined( RE_IndirectDiffuse )\\n\\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\\n\\t#ifdef USE_LIGHTMAP\\n\\t\\tvec3 lightMapIrradiance = texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\\n\\t\\t#ifndef PHYSICALLY_CORRECT_LIGHTS\\n\\t\\t\\tlightMapIrradiance *= PI;\\n\\t\\t#endif\\n\\t\\tirradiance += lightMapIrradiance;\\n\\t#endif\\n\\t#if ( NUM_HEMI_LIGHTS > 0 )\\n\\t\\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\\n\\t\\t\\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\\n\\t\\t}\\n\\t#endif\\n\\t#if defined( USE_ENVMAP ) && defined( PHYSICAL ) && defined( ENVMAP_TYPE_CUBE_UV )\\n\\t\\tirradiance += getLightProbeIndirectIrradiance( geometry, 8 );\\n\\t#endif\\n\\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\\n#endif\\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\\n\\tvec3 radiance = getLightProbeIndirectRadiance( geometry, Material_BlinnShininessExponent( material ), 8 );\\n\\t#ifndef STANDARD\\n\\t\\tvec3 clearCoatRadiance = getLightProbeIndirectRadiance( geometry, Material_ClearCoat_BlinnShininessExponent( material ), 8 );\\n\\t#else\\n\\t\\tvec3 clearCoatRadiance = vec3( 0.0 );\\n\\t#endif\\n\\tRE_IndirectSpecular( radiance, clearCoatRadiance, geometry, material, reflectedLight );\\n#endif\\n\",logdepthbuf_fragment:\"#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\\n\\tgl_FragDepthEXT = log2( vFragDepth ) * logDepthBufFC * 0.5;\\n#endif\",logdepthbuf_pars_fragment:\"#ifdef USE_LOGDEPTHBUF\\n\\tuniform float logDepthBufFC;\\n\\t#ifdef USE_LOGDEPTHBUF_EXT\\n\\t\\tvarying float vFragDepth;\\n\\t#endif\\n#endif\\n\",logdepthbuf_pars_vertex:\"#ifdef USE_LOGDEPTHBUF\\n\\t#ifdef USE_LOGDEPTHBUF_EXT\\n\\t\\tvarying float vFragDepth;\\n\\t#endif\\n\\tuniform float logDepthBufFC;\\n#endif\",logdepthbuf_vertex:\"#ifdef USE_LOGDEPTHBUF\\n\\t#ifdef USE_LOGDEPTHBUF_EXT\\n\\t\\tvFragDepth = 1.0 + gl_Position.w;\\n\\t#else\\n\\t\\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\\n\\t\\tgl_Position.z *= gl_Position.w;\\n\\t#endif\\n#endif\\n\",map_fragment:\"#ifdef USE_MAP\\n\\tvec4 texelColor = texture2D( map, vUv );\\n\\ttexelColor = mapTexelToLinear( texelColor );\\n\\tdiffuseColor *= texelColor;\\n#endif\\n\",map_pars_fragment:\"#ifdef USE_MAP\\n\\tuniform sampler2D map;\\n#endif\\n\",map_particle_fragment:\"#ifdef USE_MAP\\n\\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\\n\\tvec4 mapTexel = texture2D( map, uv );\\n\\tdiffuseColor *= mapTexelToLinear( mapTexel );\\n#endif\\n\",map_particle_pars_fragment:\"#ifdef USE_MAP\\n\\tuniform mat3 uvTransform;\\n\\tuniform sampler2D map;\\n#endif\\n\",metalnessmap_fragment:\"float metalnessFactor = metalness;\\n#ifdef USE_METALNESSMAP\\n\\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\\n\\tmetalnessFactor *= texelMetalness.b;\\n#endif\\n\",metalnessmap_pars_fragment:\"#ifdef USE_METALNESSMAP\\n\\tuniform sampler2D metalnessMap;\\n#endif\",morphnormal_vertex:\"#ifdef USE_MORPHNORMALS\\n\\tobjectNormal += ( morphNormal0 - normal ) * morphTargetInfluences[ 0 ];\\n\\tobjectNormal += ( morphNormal1 - normal ) * morphTargetInfluences[ 1 ];\\n\\tobjectNormal += ( morphNormal2 - normal ) * morphTargetInfluences[ 2 ];\\n\\tobjectNormal += ( morphNormal3 - normal ) * morphTargetInfluences[ 3 ];\\n#endif\\n\",morphtarget_pars_vertex:\"#ifdef USE_MORPHTARGETS\\n\\t#ifndef USE_MORPHNORMALS\\n\\tuniform float morphTargetInfluences[ 8 ];\\n\\t#else\\n\\tuniform float morphTargetInfluences[ 4 ];\\n\\t#endif\\n#endif\",morphtarget_vertex:\"#ifdef USE_MORPHTARGETS\\n\\ttransformed += ( morphTarget0 - position ) * morphTargetInfluences[ 0 ];\\n\\ttransformed += ( morphTarget1 - position ) * morphTargetInfluences[ 1 ];\\n\\ttransformed += ( morphTarget2 - position ) * morphTargetInfluences[ 2 ];\\n\\ttransformed += ( morphTarget3 - position ) * morphTargetInfluences[ 3 ];\\n\\t#ifndef USE_MORPHNORMALS\\n\\ttransformed += ( morphTarget4 - position ) * morphTargetInfluences[ 4 ];\\n\\ttransformed += ( morphTarget5 - position ) * morphTargetInfluences[ 5 ];\\n\\ttransformed += ( morphTarget6 - position ) * morphTargetInfluences[ 6 ];\\n\\ttransformed += ( morphTarget7 - position ) * morphTargetInfluences[ 7 ];\\n\\t#endif\\n#endif\\n\",normal_fragment:\"#ifdef FLAT_SHADED\\n\\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\\n\\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\\n\\tvec3 normal = normalize( cross( fdx, fdy ) );\\n#else\\n\\tvec3 normal = normalize( vNormal );\\n\\t#ifdef DOUBLE_SIDED\\n\\t\\tnormal = normal * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\\n\\t#endif\\n#endif\\n#ifdef USE_NORMALMAP\\n\\tnormal = perturbNormal2Arb( -vViewPosition, normal );\\n#elif defined( USE_BUMPMAP )\\n\\tnormal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd() );\\n#endif\\n\",normalmap_pars_fragment:\"#ifdef USE_NORMALMAP\\n\\tuniform sampler2D normalMap;\\n\\tuniform vec2 normalScale;\\n\\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm ) {\\n\\t\\tvec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );\\n\\t\\tvec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );\\n\\t\\tvec2 st0 = dFdx( vUv.st );\\n\\t\\tvec2 st1 = dFdy( vUv.st );\\n\\t\\tvec3 S = normalize( q0 * st1.t - q1 * st0.t );\\n\\t\\tvec3 T = normalize( -q0 * st1.s + q1 * st0.s );\\n\\t\\tvec3 N = normalize( surf_norm );\\n\\t\\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\\n\\t\\tmapN.xy = normalScale * mapN.xy;\\n\\t\\tmat3 tsn = mat3( S, T, N );\\n\\t\\treturn normalize( tsn * mapN );\\n\\t}\\n#endif\\n\",\npacking:\"vec3 packNormalToRGB( const in vec3 normal ) {\\n\\treturn normalize( normal ) * 0.5 + 0.5;\\n}\\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\\n\\treturn 2.0 * rgb.xyz - 1.0;\\n}\\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256.,  256. );\\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\\nconst float ShiftRight8 = 1. / 256.;\\nvec4 packDepthToRGBA( const in float v ) {\\n\\tvec4 r = vec4( fract( v * PackFactors ), v );\\n\\tr.yzw -= r.xyz * ShiftRight8;\\treturn r * PackUpscale;\\n}\\nfloat unpackRGBAToDepth( const in vec4 v ) {\\n\\treturn dot( v, UnpackFactors );\\n}\\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\\n\\treturn ( viewZ + near ) / ( near - far );\\n}\\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\\n\\treturn linearClipZ * ( near - far ) - near;\\n}\\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\\n\\treturn (( near + viewZ ) * far ) / (( far - near ) * viewZ );\\n}\\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\\n\\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\\n}\\n\",premultiplied_alpha_fragment:\"#ifdef PREMULTIPLIED_ALPHA\\n\\tgl_FragColor.rgb *= gl_FragColor.a;\\n#endif\\n\",project_vertex:\"vec4 mvPosition = modelViewMatrix * vec4( transformed, 1.0 );\\ngl_Position = projectionMatrix * mvPosition;\\n\",dithering_fragment:\"#if defined( DITHERING )\\n  gl_FragColor.rgb = dithering( gl_FragColor.rgb );\\n#endif\\n\",dithering_pars_fragment:\"#if defined( DITHERING )\\n\\tvec3 dithering( vec3 color ) {\\n\\t\\tfloat grid_position = rand( gl_FragCoord.xy );\\n\\t\\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\\n\\t\\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\\n\\t\\treturn color + dither_shift_RGB;\\n\\t}\\n#endif\\n\",roughnessmap_fragment:\"float roughnessFactor = roughness;\\n#ifdef USE_ROUGHNESSMAP\\n\\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\\n\\troughnessFactor *= texelRoughness.g;\\n#endif\\n\",roughnessmap_pars_fragment:\"#ifdef USE_ROUGHNESSMAP\\n\\tuniform sampler2D roughnessMap;\\n#endif\",shadowmap_pars_fragment:\"#ifdef USE_SHADOWMAP\\n\\t#if NUM_DIR_LIGHTS > 0\\n\\t\\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHTS ];\\n\\t\\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHTS ];\\n\\t#endif\\n\\t#if NUM_SPOT_LIGHTS > 0\\n\\t\\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHTS ];\\n\\t\\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHTS ];\\n\\t#endif\\n\\t#if NUM_POINT_LIGHTS > 0\\n\\t\\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHTS ];\\n\\t\\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHTS ];\\n\\t#endif\\n\\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\\n\\t\\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\\n\\t}\\n\\tfloat texture2DShadowLerp( sampler2D depths, vec2 size, vec2 uv, float compare ) {\\n\\t\\tconst vec2 offset = vec2( 0.0, 1.0 );\\n\\t\\tvec2 texelSize = vec2( 1.0 ) / size;\\n\\t\\tvec2 centroidUV = floor( uv * size + 0.5 ) / size;\\n\\t\\tfloat lb = texture2DCompare( depths, centroidUV + texelSize * offset.xx, compare );\\n\\t\\tfloat lt = texture2DCompare( depths, centroidUV + texelSize * offset.xy, compare );\\n\\t\\tfloat rb = texture2DCompare( depths, centroidUV + texelSize * offset.yx, compare );\\n\\t\\tfloat rt = texture2DCompare( depths, centroidUV + texelSize * offset.yy, compare );\\n\\t\\tvec2 f = fract( uv * size + 0.5 );\\n\\t\\tfloat a = mix( lb, lt, f.y );\\n\\t\\tfloat b = mix( rb, rt, f.y );\\n\\t\\tfloat c = mix( a, b, f.x );\\n\\t\\treturn c;\\n\\t}\\n\\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\\n\\t\\tfloat shadow = 1.0;\\n\\t\\tshadowCoord.xyz /= shadowCoord.w;\\n\\t\\tshadowCoord.z += shadowBias;\\n\\t\\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\\n\\t\\tbool inFrustum = all( inFrustumVec );\\n\\t\\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\\n\\t\\tbool frustumTest = all( frustumTestVec );\\n\\t\\tif ( frustumTest ) {\\n\\t\\t#if defined( SHADOWMAP_TYPE_PCF )\\n\\t\\t\\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\\n\\t\\t\\tfloat dx0 = - texelSize.x * shadowRadius;\\n\\t\\t\\tfloat dy0 = - texelSize.y * shadowRadius;\\n\\t\\t\\tfloat dx1 = + texelSize.x * shadowRadius;\\n\\t\\t\\tfloat dy1 = + texelSize.y * shadowRadius;\\n\\t\\t\\tshadow = (\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\\n\\t\\t\\t) * ( 1.0 / 9.0 );\\n\\t\\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\\n\\t\\t\\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\\n\\t\\t\\tfloat dx0 = - texelSize.x * shadowRadius;\\n\\t\\t\\tfloat dy0 = - texelSize.y * shadowRadius;\\n\\t\\t\\tfloat dx1 = + texelSize.x * shadowRadius;\\n\\t\\t\\tfloat dy1 = + texelSize.y * shadowRadius;\\n\\t\\t\\tshadow = (\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy, shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\\n\\t\\t\\t) * ( 1.0 / 9.0 );\\n\\t\\t#else\\n\\t\\t\\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\\n\\t\\t#endif\\n\\t\\t}\\n\\t\\treturn shadow;\\n\\t}\\n\\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\\n\\t\\tvec3 absV = abs( v );\\n\\t\\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\\n\\t\\tabsV *= scaleToCube;\\n\\t\\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\\n\\t\\tvec2 planar = v.xy;\\n\\t\\tfloat almostATexel = 1.5 * texelSizeY;\\n\\t\\tfloat almostOne = 1.0 - almostATexel;\\n\\t\\tif ( absV.z >= almostOne ) {\\n\\t\\t\\tif ( v.z > 0.0 )\\n\\t\\t\\t\\tplanar.x = 4.0 - v.x;\\n\\t\\t} else if ( absV.x >= almostOne ) {\\n\\t\\t\\tfloat signX = sign( v.x );\\n\\t\\t\\tplanar.x = v.z * signX + 2.0 * signX;\\n\\t\\t} else if ( absV.y >= almostOne ) {\\n\\t\\t\\tfloat signY = sign( v.y );\\n\\t\\t\\tplanar.x = v.x + 2.0 * signY + 2.0;\\n\\t\\t\\tplanar.y = v.z * signY - 2.0;\\n\\t\\t}\\n\\t\\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\\n\\t}\\n\\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\\n\\t\\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\\n\\t\\tvec3 lightToPosition = shadowCoord.xyz;\\n\\t\\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\\t\\tdp += shadowBias;\\n\\t\\tvec3 bd3D = normalize( lightToPosition );\\n\\t\\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT )\\n\\t\\t\\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\\n\\t\\t\\treturn (\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\\n\\t\\t\\t) * ( 1.0 / 9.0 );\\n\\t\\t#else\\n\\t\\t\\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\\n\\t\\t#endif\\n\\t}\\n#endif\\n\",shadowmap_pars_vertex:\"#ifdef USE_SHADOWMAP\\n\\t#if NUM_DIR_LIGHTS > 0\\n\\t\\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHTS ];\\n\\t\\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHTS ];\\n\\t#endif\\n\\t#if NUM_SPOT_LIGHTS > 0\\n\\t\\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHTS ];\\n\\t\\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHTS ];\\n\\t#endif\\n\\t#if NUM_POINT_LIGHTS > 0\\n\\t\\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHTS ];\\n\\t\\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHTS ];\\n\\t#endif\\n#endif\\n\",shadowmap_vertex:\"#ifdef USE_SHADOWMAP\\n\\t#if NUM_DIR_LIGHTS > 0\\n\\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\\n\\t\\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * worldPosition;\\n\\t}\\n\\t#endif\\n\\t#if NUM_SPOT_LIGHTS > 0\\n\\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\\n\\t\\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * worldPosition;\\n\\t}\\n\\t#endif\\n\\t#if NUM_POINT_LIGHTS > 0\\n\\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\\n\\t\\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * worldPosition;\\n\\t}\\n\\t#endif\\n#endif\\n\",shadowmask_pars_fragment:\"float getShadowMask() {\\n\\tfloat shadow = 1.0;\\n\\t#ifdef USE_SHADOWMAP\\n\\t#if NUM_DIR_LIGHTS > 0\\n\\tDirectionalLight directionalLight;\\n\\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\\n\\t\\tdirectionalLight = directionalLights[ i ];\\n\\t\\tshadow *= bool( directionalLight.shadow ) ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\\n\\t}\\n\\t#endif\\n\\t#if NUM_SPOT_LIGHTS > 0\\n\\tSpotLight spotLight;\\n\\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\\n\\t\\tspotLight = spotLights[ i ];\\n\\t\\tshadow *= bool( spotLight.shadow ) ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\\n\\t}\\n\\t#endif\\n\\t#if NUM_POINT_LIGHTS > 0\\n\\tPointLight pointLight;\\n\\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\\n\\t\\tpointLight = pointLights[ i ];\\n\\t\\tshadow *= bool( pointLight.shadow ) ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\\n\\t}\\n\\t#endif\\n\\t#endif\\n\\treturn shadow;\\n}\\n\",skinbase_vertex:\"#ifdef USE_SKINNING\\n\\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\\n\\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\\n\\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\\n\\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\\n#endif\",skinning_pars_vertex:\"#ifdef USE_SKINNING\\n\\tuniform mat4 bindMatrix;\\n\\tuniform mat4 bindMatrixInverse;\\n\\t#ifdef BONE_TEXTURE\\n\\t\\tuniform sampler2D boneTexture;\\n\\t\\tuniform int boneTextureSize;\\n\\t\\tmat4 getBoneMatrix( const in float i ) {\\n\\t\\t\\tfloat j = i * 4.0;\\n\\t\\t\\tfloat x = mod( j, float( boneTextureSize ) );\\n\\t\\t\\tfloat y = floor( j / float( boneTextureSize ) );\\n\\t\\t\\tfloat dx = 1.0 / float( boneTextureSize );\\n\\t\\t\\tfloat dy = 1.0 / float( boneTextureSize );\\n\\t\\t\\ty = dy * ( y + 0.5 );\\n\\t\\t\\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\\n\\t\\t\\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\\n\\t\\t\\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\\n\\t\\t\\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\\n\\t\\t\\tmat4 bone = mat4( v1, v2, v3, v4 );\\n\\t\\t\\treturn bone;\\n\\t\\t}\\n\\t#else\\n\\t\\tuniform mat4 boneMatrices[ MAX_BONES ];\\n\\t\\tmat4 getBoneMatrix( const in float i ) {\\n\\t\\t\\tmat4 bone = boneMatrices[ int(i) ];\\n\\t\\t\\treturn bone;\\n\\t\\t}\\n\\t#endif\\n#endif\\n\",skinning_vertex:\"#ifdef USE_SKINNING\\n\\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\\n\\tvec4 skinned = vec4( 0.0 );\\n\\tskinned += boneMatX * skinVertex * skinWeight.x;\\n\\tskinned += boneMatY * skinVertex * skinWeight.y;\\n\\tskinned += boneMatZ * skinVertex * skinWeight.z;\\n\\tskinned += boneMatW * skinVertex * skinWeight.w;\\n\\ttransformed = ( bindMatrixInverse * skinned ).xyz;\\n#endif\\n\",skinnormal_vertex:\"#ifdef USE_SKINNING\\n\\tmat4 skinMatrix = mat4( 0.0 );\\n\\tskinMatrix += skinWeight.x * boneMatX;\\n\\tskinMatrix += skinWeight.y * boneMatY;\\n\\tskinMatrix += skinWeight.z * boneMatZ;\\n\\tskinMatrix += skinWeight.w * boneMatW;\\n\\tskinMatrix  = bindMatrixInverse * skinMatrix * bindMatrix;\\n\\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\\n#endif\\n\",specularmap_fragment:\"float specularStrength;\\n#ifdef USE_SPECULARMAP\\n\\tvec4 texelSpecular = texture2D( specularMap, vUv );\\n\\tspecularStrength = texelSpecular.r;\\n#else\\n\\tspecularStrength = 1.0;\\n#endif\",specularmap_pars_fragment:\"#ifdef USE_SPECULARMAP\\n\\tuniform sampler2D specularMap;\\n#endif\",tonemapping_fragment:\"#if defined( TONE_MAPPING )\\n  gl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\\n#endif\\n\",tonemapping_pars_fragment:\"#ifndef saturate\\n\\t#define saturate(a) clamp( a, 0.0, 1.0 )\\n#endif\\nuniform float toneMappingExposure;\\nuniform float toneMappingWhitePoint;\\nvec3 LinearToneMapping( vec3 color ) {\\n\\treturn toneMappingExposure * color;\\n}\\nvec3 ReinhardToneMapping( vec3 color ) {\\n\\tcolor *= toneMappingExposure;\\n\\treturn saturate( color / ( vec3( 1.0 ) + color ) );\\n}\\n#define Uncharted2Helper( x ) max( ( ( x * ( 0.15 * x + 0.10 * 0.50 ) + 0.20 * 0.02 ) / ( x * ( 0.15 * x + 0.50 ) + 0.20 * 0.30 ) ) - 0.02 / 0.30, vec3( 0.0 ) )\\nvec3 Uncharted2ToneMapping( vec3 color ) {\\n\\tcolor *= toneMappingExposure;\\n\\treturn saturate( Uncharted2Helper( color ) / Uncharted2Helper( vec3( toneMappingWhitePoint ) ) );\\n}\\nvec3 OptimizedCineonToneMapping( vec3 color ) {\\n\\tcolor *= toneMappingExposure;\\n\\tcolor = max( vec3( 0.0 ), color - 0.004 );\\n\\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\\n}\\n\",uv_pars_fragment:\"#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\\n\\tvarying vec2 vUv;\\n#endif\",uv_pars_vertex:\"#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\\n\\tvarying vec2 vUv;\\n\\tuniform mat3 uvTransform;\\n#endif\\n\",uv_vertex:\"#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\\n\\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\\n#endif\",uv2_pars_fragment:\"#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\\n\\tvarying vec2 vUv2;\\n#endif\",uv2_pars_vertex:\"#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\\n\\tattribute vec2 uv2;\\n\\tvarying vec2 vUv2;\\n#endif\",uv2_vertex:\"#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\\n\\tvUv2 = uv2;\\n#endif\",worldpos_vertex:\"#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP )\\n\\tvec4 worldPosition = modelMatrix * vec4( transformed, 1.0 );\\n#endif\\n\",cube_frag:\"uniform samplerCube tCube;\\nuniform float tFlip;\\nuniform float opacity;\\nvarying vec3 vWorldPosition;\\nvoid main() {\\n\\tgl_FragColor = textureCube( tCube, vec3( tFlip * vWorldPosition.x, vWorldPosition.yz ) );\\n\\tgl_FragColor.a *= opacity;\\n}\\n\",cube_vert:\"varying vec3 vWorldPosition;\\n#include <common>\\nvoid main() {\\n\\tvWorldPosition = transformDirection( position, modelMatrix );\\n\\t#include <begin_vertex>\\n\\t#include <project_vertex>\\n\\tgl_Position.z = gl_Position.w;\\n}\\n\",depth_frag:\"#if DEPTH_PACKING == 3200\\n\\tuniform float opacity;\\n#endif\\n#include <common>\\n#include <packing>\\n#include <uv_pars_fragment>\\n#include <map_pars_fragment>\\n#include <alphamap_pars_fragment>\\n#include <logdepthbuf_pars_fragment>\\n#include <clipping_planes_pars_fragment>\\nvoid main() {\\n\\t#include <clipping_planes_fragment>\\n\\tvec4 diffuseColor = vec4( 1.0 );\\n\\t#if DEPTH_PACKING == 3200\\n\\t\\tdiffuseColor.a = opacity;\\n\\t#endif\\n\\t#include <map_fragment>\\n\\t#include <alphamap_fragment>\\n\\t#include <alphatest_fragment>\\n\\t#include <logdepthbuf_fragment>\\n\\t#if DEPTH_PACKING == 3200\\n\\t\\tgl_FragColor = vec4( vec3( gl_FragCoord.z ), opacity );\\n\\t#elif DEPTH_PACKING == 3201\\n\\t\\tgl_FragColor = packDepthToRGBA( gl_FragCoord.z );\\n\\t#endif\\n}\\n\",depth_vert:\"#include <common>\\n#include <uv_pars_vertex>\\n#include <displacementmap_pars_vertex>\\n#include <morphtarget_pars_vertex>\\n#include <skinning_pars_vertex>\\n#include <logdepthbuf_pars_vertex>\\n#include <clipping_planes_pars_vertex>\\nvoid main() {\\n\\t#include <uv_vertex>\\n\\t#include <skinbase_vertex>\\n\\t#ifdef USE_DISPLACEMENTMAP\\n\\t\\t#include <beginnormal_vertex>\\n\\t\\t#include <morphnormal_vertex>\\n\\t\\t#include <skinnormal_vertex>\\n\\t#endif\\n\\t#include <begin_vertex>\\n\\t#include <morphtarget_vertex>\\n\\t#include <skinning_vertex>\\n\\t#include <displacementmap_vertex>\\n\\t#include <project_vertex>\\n\\t#include <logdepthbuf_vertex>\\n\\t#include <clipping_planes_vertex>\\n}\\n\",distanceRGBA_frag:\"#define DISTANCE\\nuniform vec3 referencePosition;\\nuniform float nearDistance;\\nuniform float farDistance;\\nvarying vec3 vWorldPosition;\\n#include <common>\\n#include <packing>\\n#include <uv_pars_fragment>\\n#include <map_pars_fragment>\\n#include <alphamap_pars_fragment>\\n#include <clipping_planes_pars_fragment>\\nvoid main () {\\n\\t#include <clipping_planes_fragment>\\n\\tvec4 diffuseColor = vec4( 1.0 );\\n\\t#include <map_fragment>\\n\\t#include <alphamap_fragment>\\n\\t#include <alphatest_fragment>\\n\\tfloat dist = length( vWorldPosition - referencePosition );\\n\\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\\n\\tdist = saturate( dist );\\n\\tgl_FragColor = packDepthToRGBA( dist );\\n}\\n\",distanceRGBA_vert:\"#define DISTANCE\\nvarying vec3 vWorldPosition;\\n#include <common>\\n#include <uv_pars_vertex>\\n#include <displacementmap_pars_vertex>\\n#include <morphtarget_pars_vertex>\\n#include <skinning_pars_vertex>\\n#include <clipping_planes_pars_vertex>\\nvoid main() {\\n\\t#include <uv_vertex>\\n\\t#include <skinbase_vertex>\\n\\t#ifdef USE_DISPLACEMENTMAP\\n\\t\\t#include <beginnormal_vertex>\\n\\t\\t#include <morphnormal_vertex>\\n\\t\\t#include <skinnormal_vertex>\\n\\t#endif\\n\\t#include <begin_vertex>\\n\\t#include <morphtarget_vertex>\\n\\t#include <skinning_vertex>\\n\\t#include <displacementmap_vertex>\\n\\t#include <project_vertex>\\n\\t#include <worldpos_vertex>\\n\\t#include <clipping_planes_vertex>\\n\\tvWorldPosition = worldPosition.xyz;\\n}\\n\",equirect_frag:\"uniform sampler2D tEquirect;\\nvarying vec3 vWorldPosition;\\n#include <common>\\nvoid main() {\\n\\tvec3 direction = normalize( vWorldPosition );\\n\\tvec2 sampleUV;\\n\\tsampleUV.y = asin( clamp( direction.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\\n\\tsampleUV.x = atan( direction.z, direction.x ) * RECIPROCAL_PI2 + 0.5;\\n\\tgl_FragColor = texture2D( tEquirect, sampleUV );\\n}\\n\",equirect_vert:\"varying vec3 vWorldPosition;\\n#include <common>\\nvoid main() {\\n\\tvWorldPosition = transformDirection( position, modelMatrix );\\n\\t#include <begin_vertex>\\n\\t#include <project_vertex>\\n}\\n\",linedashed_frag:\"uniform vec3 diffuse;\\nuniform float opacity;\\nuniform float dashSize;\\nuniform float totalSize;\\nvarying float vLineDistance;\\n#include <common>\\n#include <color_pars_fragment>\\n#include <fog_pars_fragment>\\n#include <logdepthbuf_pars_fragment>\\n#include <clipping_planes_pars_fragment>\\nvoid main() {\\n\\t#include <clipping_planes_fragment>\\n\\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\\n\\t\\tdiscard;\\n\\t}\\n\\tvec3 outgoingLight = vec3( 0.0 );\\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\t#include <logdepthbuf_fragment>\\n\\t#include <color_fragment>\\n\\toutgoingLight = diffuseColor.rgb;\\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include <premultiplied_alpha_fragment>\\n\\t#include <tonemapping_fragment>\\n\\t#include <encodings_fragment>\\n\\t#include <fog_fragment>\\n}\\n\",linedashed_vert:\"uniform float scale;\\nattribute float lineDistance;\\nvarying float vLineDistance;\\n#include <common>\\n#include <color_pars_vertex>\\n#include <fog_pars_vertex>\\n#include <logdepthbuf_pars_vertex>\\n#include <clipping_planes_pars_vertex>\\nvoid main() {\\n\\t#include <color_vertex>\\n\\tvLineDistance = scale * lineDistance;\\n\\tvec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );\\n\\tgl_Position = projectionMatrix * mvPosition;\\n\\t#include <logdepthbuf_vertex>\\n\\t#include <clipping_planes_vertex>\\n\\t#include <fog_vertex>\\n}\\n\",meshbasic_frag:\"uniform vec3 diffuse;\\nuniform float opacity;\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\n#include <common>\\n#include <color_pars_fragment>\\n#include <uv_pars_fragment>\\n#include <uv2_pars_fragment>\\n#include <map_pars_fragment>\\n#include <alphamap_pars_fragment>\\n#include <aomap_pars_fragment>\\n#include <lightmap_pars_fragment>\\n#include <envmap_pars_fragment>\\n#include <fog_pars_fragment>\\n#include <specularmap_pars_fragment>\\n#include <logdepthbuf_pars_fragment>\\n#include <clipping_planes_pars_fragment>\\nvoid main() {\\n\\t#include <clipping_planes_fragment>\\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\t#include <logdepthbuf_fragment>\\n\\t#include <map_fragment>\\n\\t#include <color_fragment>\\n\\t#include <alphamap_fragment>\\n\\t#include <alphatest_fragment>\\n\\t#include <specularmap_fragment>\\n\\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\\n\\t#ifdef USE_LIGHTMAP\\n\\t\\treflectedLight.indirectDiffuse += texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\\n\\t#else\\n\\t\\treflectedLight.indirectDiffuse += vec3( 1.0 );\\n\\t#endif\\n\\t#include <aomap_fragment>\\n\\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\\n\\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\\n\\t#include <envmap_fragment>\\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include <premultiplied_alpha_fragment>\\n\\t#include <tonemapping_fragment>\\n\\t#include <encodings_fragment>\\n\\t#include <fog_fragment>\\n}\\n\",meshbasic_vert:\"#include <common>\\n#include <uv_pars_vertex>\\n#include <uv2_pars_vertex>\\n#include <envmap_pars_vertex>\\n#include <color_pars_vertex>\\n#include <fog_pars_vertex>\\n#include <morphtarget_pars_vertex>\\n#include <skinning_pars_vertex>\\n#include <logdepthbuf_pars_vertex>\\n#include <clipping_planes_pars_vertex>\\nvoid main() {\\n\\t#include <uv_vertex>\\n\\t#include <uv2_vertex>\\n\\t#include <color_vertex>\\n\\t#include <skinbase_vertex>\\n\\t#ifdef USE_ENVMAP\\n\\t#include <beginnormal_vertex>\\n\\t#include <morphnormal_vertex>\\n\\t#include <skinnormal_vertex>\\n\\t#include <defaultnormal_vertex>\\n\\t#endif\\n\\t#include <begin_vertex>\\n\\t#include <morphtarget_vertex>\\n\\t#include <skinning_vertex>\\n\\t#include <project_vertex>\\n\\t#include <logdepthbuf_vertex>\\n\\t#include <worldpos_vertex>\\n\\t#include <clipping_planes_vertex>\\n\\t#include <envmap_vertex>\\n\\t#include <fog_vertex>\\n}\\n\",meshlambert_frag:\"uniform vec3 diffuse;\\nuniform vec3 emissive;\\nuniform float opacity;\\nvarying vec3 vLightFront;\\n#ifdef DOUBLE_SIDED\\n\\tvarying vec3 vLightBack;\\n#endif\\n#include <common>\\n#include <packing>\\n#include <dithering_pars_fragment>\\n#include <color_pars_fragment>\\n#include <uv_pars_fragment>\\n#include <uv2_pars_fragment>\\n#include <map_pars_fragment>\\n#include <alphamap_pars_fragment>\\n#include <aomap_pars_fragment>\\n#include <lightmap_pars_fragment>\\n#include <emissivemap_pars_fragment>\\n#include <envmap_pars_fragment>\\n#include <bsdfs>\\n#include <lights_pars>\\n#include <fog_pars_fragment>\\n#include <shadowmap_pars_fragment>\\n#include <shadowmask_pars_fragment>\\n#include <specularmap_pars_fragment>\\n#include <logdepthbuf_pars_fragment>\\n#include <clipping_planes_pars_fragment>\\nvoid main() {\\n\\t#include <clipping_planes_fragment>\\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\\n\\tvec3 totalEmissiveRadiance = emissive;\\n\\t#include <logdepthbuf_fragment>\\n\\t#include <map_fragment>\\n\\t#include <color_fragment>\\n\\t#include <alphamap_fragment>\\n\\t#include <alphatest_fragment>\\n\\t#include <specularmap_fragment>\\n\\t#include <emissivemap_fragment>\\n\\treflectedLight.indirectDiffuse = getAmbientLightIrradiance( ambientLightColor );\\n\\t#include <lightmap_fragment>\\n\\treflectedLight.indirectDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb );\\n\\t#ifdef DOUBLE_SIDED\\n\\t\\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\\n\\t#else\\n\\t\\treflectedLight.directDiffuse = vLightFront;\\n\\t#endif\\n\\treflectedLight.directDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb ) * getShadowMask();\\n\\t#include <aomap_fragment>\\n\\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\\n\\t#include <envmap_fragment>\\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include <tonemapping_fragment>\\n\\t#include <encodings_fragment>\\n\\t#include <fog_fragment>\\n\\t#include <premultiplied_alpha_fragment>\\n\\t#include <dithering_fragment>\\n}\\n\",meshlambert_vert:\"#define LAMBERT\\nvarying vec3 vLightFront;\\n#ifdef DOUBLE_SIDED\\n\\tvarying vec3 vLightBack;\\n#endif\\n#include <common>\\n#include <uv_pars_vertex>\\n#include <uv2_pars_vertex>\\n#include <envmap_pars_vertex>\\n#include <bsdfs>\\n#include <lights_pars>\\n#include <color_pars_vertex>\\n#include <fog_pars_vertex>\\n#include <morphtarget_pars_vertex>\\n#include <skinning_pars_vertex>\\n#include <shadowmap_pars_vertex>\\n#include <logdepthbuf_pars_vertex>\\n#include <clipping_planes_pars_vertex>\\nvoid main() {\\n\\t#include <uv_vertex>\\n\\t#include <uv2_vertex>\\n\\t#include <color_vertex>\\n\\t#include <beginnormal_vertex>\\n\\t#include <morphnormal_vertex>\\n\\t#include <skinbase_vertex>\\n\\t#include <skinnormal_vertex>\\n\\t#include <defaultnormal_vertex>\\n\\t#include <begin_vertex>\\n\\t#include <morphtarget_vertex>\\n\\t#include <skinning_vertex>\\n\\t#include <project_vertex>\\n\\t#include <logdepthbuf_vertex>\\n\\t#include <clipping_planes_vertex>\\n\\t#include <worldpos_vertex>\\n\\t#include <envmap_vertex>\\n\\t#include <lights_lambert_vertex>\\n\\t#include <shadowmap_vertex>\\n\\t#include <fog_vertex>\\n}\\n\",meshphong_frag:\"#define PHONG\\nuniform vec3 diffuse;\\nuniform vec3 emissive;\\nuniform vec3 specular;\\nuniform float shininess;\\nuniform float opacity;\\n#include <common>\\n#include <packing>\\n#include <dithering_pars_fragment>\\n#include <color_pars_fragment>\\n#include <uv_pars_fragment>\\n#include <uv2_pars_fragment>\\n#include <map_pars_fragment>\\n#include <alphamap_pars_fragment>\\n#include <aomap_pars_fragment>\\n#include <lightmap_pars_fragment>\\n#include <emissivemap_pars_fragment>\\n#include <envmap_pars_fragment>\\n#include <gradientmap_pars_fragment>\\n#include <fog_pars_fragment>\\n#include <bsdfs>\\n#include <lights_pars>\\n#include <lights_phong_pars_fragment>\\n#include <shadowmap_pars_fragment>\\n#include <bumpmap_pars_fragment>\\n#include <normalmap_pars_fragment>\\n#include <specularmap_pars_fragment>\\n#include <logdepthbuf_pars_fragment>\\n#include <clipping_planes_pars_fragment>\\nvoid main() {\\n\\t#include <clipping_planes_fragment>\\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\\n\\tvec3 totalEmissiveRadiance = emissive;\\n\\t#include <logdepthbuf_fragment>\\n\\t#include <map_fragment>\\n\\t#include <color_fragment>\\n\\t#include <alphamap_fragment>\\n\\t#include <alphatest_fragment>\\n\\t#include <specularmap_fragment>\\n\\t#include <normal_fragment>\\n\\t#include <emissivemap_fragment>\\n\\t#include <lights_phong_fragment>\\n\\t#include <lights_template>\\n\\t#include <aomap_fragment>\\n\\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\\n\\t#include <envmap_fragment>\\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include <tonemapping_fragment>\\n\\t#include <encodings_fragment>\\n\\t#include <fog_fragment>\\n\\t#include <premultiplied_alpha_fragment>\\n\\t#include <dithering_fragment>\\n}\\n\",meshphong_vert:\"#define PHONG\\nvarying vec3 vViewPosition;\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\n#include <common>\\n#include <uv_pars_vertex>\\n#include <uv2_pars_vertex>\\n#include <displacementmap_pars_vertex>\\n#include <envmap_pars_vertex>\\n#include <color_pars_vertex>\\n#include <fog_pars_vertex>\\n#include <morphtarget_pars_vertex>\\n#include <skinning_pars_vertex>\\n#include <shadowmap_pars_vertex>\\n#include <logdepthbuf_pars_vertex>\\n#include <clipping_planes_pars_vertex>\\nvoid main() {\\n\\t#include <uv_vertex>\\n\\t#include <uv2_vertex>\\n\\t#include <color_vertex>\\n\\t#include <beginnormal_vertex>\\n\\t#include <morphnormal_vertex>\\n\\t#include <skinbase_vertex>\\n\\t#include <skinnormal_vertex>\\n\\t#include <defaultnormal_vertex>\\n#ifndef FLAT_SHADED\\n\\tvNormal = normalize( transformedNormal );\\n#endif\\n\\t#include <begin_vertex>\\n\\t#include <morphtarget_vertex>\\n\\t#include <skinning_vertex>\\n\\t#include <displacementmap_vertex>\\n\\t#include <project_vertex>\\n\\t#include <logdepthbuf_vertex>\\n\\t#include <clipping_planes_vertex>\\n\\tvViewPosition = - mvPosition.xyz;\\n\\t#include <worldpos_vertex>\\n\\t#include <envmap_vertex>\\n\\t#include <shadowmap_vertex>\\n\\t#include <fog_vertex>\\n}\\n\",\nmeshphysical_frag:\"#define PHYSICAL\\nuniform vec3 diffuse;\\nuniform vec3 emissive;\\nuniform float roughness;\\nuniform float metalness;\\nuniform float opacity;\\n#ifndef STANDARD\\n\\tuniform float clearCoat;\\n\\tuniform float clearCoatRoughness;\\n#endif\\nvarying vec3 vViewPosition;\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\n#include <common>\\n#include <packing>\\n#include <dithering_pars_fragment>\\n#include <color_pars_fragment>\\n#include <uv_pars_fragment>\\n#include <uv2_pars_fragment>\\n#include <map_pars_fragment>\\n#include <alphamap_pars_fragment>\\n#include <aomap_pars_fragment>\\n#include <lightmap_pars_fragment>\\n#include <emissivemap_pars_fragment>\\n#include <envmap_pars_fragment>\\n#include <fog_pars_fragment>\\n#include <bsdfs>\\n#include <cube_uv_reflection_fragment>\\n#include <lights_pars>\\n#include <lights_physical_pars_fragment>\\n#include <shadowmap_pars_fragment>\\n#include <bumpmap_pars_fragment>\\n#include <normalmap_pars_fragment>\\n#include <roughnessmap_pars_fragment>\\n#include <metalnessmap_pars_fragment>\\n#include <logdepthbuf_pars_fragment>\\n#include <clipping_planes_pars_fragment>\\nvoid main() {\\n\\t#include <clipping_planes_fragment>\\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\\n\\tvec3 totalEmissiveRadiance = emissive;\\n\\t#include <logdepthbuf_fragment>\\n\\t#include <map_fragment>\\n\\t#include <color_fragment>\\n\\t#include <alphamap_fragment>\\n\\t#include <alphatest_fragment>\\n\\t#include <roughnessmap_fragment>\\n\\t#include <metalnessmap_fragment>\\n\\t#include <normal_fragment>\\n\\t#include <emissivemap_fragment>\\n\\t#include <lights_physical_fragment>\\n\\t#include <lights_template>\\n\\t#include <aomap_fragment>\\n\\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include <tonemapping_fragment>\\n\\t#include <encodings_fragment>\\n\\t#include <fog_fragment>\\n\\t#include <premultiplied_alpha_fragment>\\n\\t#include <dithering_fragment>\\n}\\n\",meshphysical_vert:\"#define PHYSICAL\\nvarying vec3 vViewPosition;\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\n#include <common>\\n#include <uv_pars_vertex>\\n#include <uv2_pars_vertex>\\n#include <displacementmap_pars_vertex>\\n#include <color_pars_vertex>\\n#include <fog_pars_vertex>\\n#include <morphtarget_pars_vertex>\\n#include <skinning_pars_vertex>\\n#include <shadowmap_pars_vertex>\\n#include <logdepthbuf_pars_vertex>\\n#include <clipping_planes_pars_vertex>\\nvoid main() {\\n\\t#include <uv_vertex>\\n\\t#include <uv2_vertex>\\n\\t#include <color_vertex>\\n\\t#include <beginnormal_vertex>\\n\\t#include <morphnormal_vertex>\\n\\t#include <skinbase_vertex>\\n\\t#include <skinnormal_vertex>\\n\\t#include <defaultnormal_vertex>\\n#ifndef FLAT_SHADED\\n\\tvNormal = normalize( transformedNormal );\\n#endif\\n\\t#include <begin_vertex>\\n\\t#include <morphtarget_vertex>\\n\\t#include <skinning_vertex>\\n\\t#include <displacementmap_vertex>\\n\\t#include <project_vertex>\\n\\t#include <logdepthbuf_vertex>\\n\\t#include <clipping_planes_vertex>\\n\\tvViewPosition = - mvPosition.xyz;\\n\\t#include <worldpos_vertex>\\n\\t#include <shadowmap_vertex>\\n\\t#include <fog_vertex>\\n}\\n\",normal_frag:\"#define NORMAL\\nuniform float opacity;\\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP )\\n\\tvarying vec3 vViewPosition;\\n#endif\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\n#include <packing>\\n#include <uv_pars_fragment>\\n#include <bumpmap_pars_fragment>\\n#include <normalmap_pars_fragment>\\n#include <logdepthbuf_pars_fragment>\\nvoid main() {\\n\\t#include <logdepthbuf_fragment>\\n\\t#include <normal_fragment>\\n\\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\\n}\\n\",normal_vert:\"#define NORMAL\\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP )\\n\\tvarying vec3 vViewPosition;\\n#endif\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\n#include <uv_pars_vertex>\\n#include <displacementmap_pars_vertex>\\n#include <morphtarget_pars_vertex>\\n#include <skinning_pars_vertex>\\n#include <logdepthbuf_pars_vertex>\\nvoid main() {\\n\\t#include <uv_vertex>\\n\\t#include <beginnormal_vertex>\\n\\t#include <morphnormal_vertex>\\n\\t#include <skinbase_vertex>\\n\\t#include <skinnormal_vertex>\\n\\t#include <defaultnormal_vertex>\\n#ifndef FLAT_SHADED\\n\\tvNormal = normalize( transformedNormal );\\n#endif\\n\\t#include <begin_vertex>\\n\\t#include <morphtarget_vertex>\\n\\t#include <skinning_vertex>\\n\\t#include <displacementmap_vertex>\\n\\t#include <project_vertex>\\n\\t#include <logdepthbuf_vertex>\\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP )\\n\\tvViewPosition = - mvPosition.xyz;\\n#endif\\n}\\n\",points_frag:\"uniform vec3 diffuse;\\nuniform float opacity;\\n#include <common>\\n#include <packing>\\n#include <color_pars_fragment>\\n#include <map_particle_pars_fragment>\\n#include <fog_pars_fragment>\\n#include <shadowmap_pars_fragment>\\n#include <logdepthbuf_pars_fragment>\\n#include <clipping_planes_pars_fragment>\\nvoid main() {\\n\\t#include <clipping_planes_fragment>\\n\\tvec3 outgoingLight = vec3( 0.0 );\\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\t#include <logdepthbuf_fragment>\\n\\t#include <map_particle_fragment>\\n\\t#include <color_fragment>\\n\\t#include <alphatest_fragment>\\n\\toutgoingLight = diffuseColor.rgb;\\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include <premultiplied_alpha_fragment>\\n\\t#include <tonemapping_fragment>\\n\\t#include <encodings_fragment>\\n\\t#include <fog_fragment>\\n}\\n\",points_vert:\"uniform float size;\\nuniform float scale;\\n#include <common>\\n#include <color_pars_vertex>\\n#include <fog_pars_vertex>\\n#include <shadowmap_pars_vertex>\\n#include <logdepthbuf_pars_vertex>\\n#include <clipping_planes_pars_vertex>\\nvoid main() {\\n\\t#include <color_vertex>\\n\\t#include <begin_vertex>\\n\\t#include <project_vertex>\\n\\t#ifdef USE_SIZEATTENUATION\\n\\t\\tgl_PointSize = size * ( scale / - mvPosition.z );\\n\\t#else\\n\\t\\tgl_PointSize = size;\\n\\t#endif\\n\\t#include <logdepthbuf_vertex>\\n\\t#include <clipping_planes_vertex>\\n\\t#include <worldpos_vertex>\\n\\t#include <shadowmap_vertex>\\n\\t#include <fog_vertex>\\n}\\n\",shadow_frag:\"uniform vec3 color;\\nuniform float opacity;\\n#include <common>\\n#include <packing>\\n#include <fog_pars_fragment>\\n#include <bsdfs>\\n#include <lights_pars>\\n#include <shadowmap_pars_fragment>\\n#include <shadowmask_pars_fragment>\\nvoid main() {\\n\\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\\n\\t#include <fog_fragment>\\n}\\n\",shadow_vert:\"#include <fog_pars_vertex>\\n#include <shadowmap_pars_vertex>\\nvoid main() {\\n\\t#include <begin_vertex>\\n\\t#include <project_vertex>\\n\\t#include <worldpos_vertex>\\n\\t#include <shadowmap_vertex>\\n\\t#include <fog_vertex>\\n}\\n\"},Rs={basic:{uniforms:Ss.merge([Ts.common,Ts.specularmap,Ts.envmap,Ts.aomap,Ts.lightmap,Ts.fog]),vertexShader:As.meshbasic_vert,fragmentShader:As.meshbasic_frag},lambert:{uniforms:Ss.merge([Ts.common,Ts.specularmap,Ts.envmap,Ts.aomap,Ts.lightmap,Ts.emissivemap,Ts.fog,Ts.lights,{emissive:{value:new q(0)}}]),vertexShader:As.meshlambert_vert,fragmentShader:As.meshlambert_frag},phong:{uniforms:Ss.merge([Ts.common,Ts.specularmap,Ts.envmap,Ts.aomap,Ts.lightmap,Ts.emissivemap,Ts.bumpmap,Ts.normalmap,Ts.displacementmap,Ts.gradientmap,Ts.fog,Ts.lights,{emissive:{value:new q(0)},specular:{value:new q(1118481)},shininess:{value:30}}]),vertexShader:As.meshphong_vert,fragmentShader:As.meshphong_frag},standard:{uniforms:Ss.merge([Ts.common,Ts.envmap,Ts.aomap,Ts.lightmap,Ts.emissivemap,Ts.bumpmap,Ts.normalmap,Ts.displacementmap,Ts.roughnessmap,Ts.metalnessmap,Ts.fog,Ts.lights,{emissive:{value:new q(0)},roughness:{value:.5},metalness:{value:.5},envMapIntensity:{value:1}}]),vertexShader:As.meshphysical_vert,fragmentShader:As.meshphysical_frag},points:{uniforms:Ss.merge([Ts.points,Ts.fog]),vertexShader:As.points_vert,fragmentShader:As.points_frag},dashed:{uniforms:Ss.merge([Ts.common,Ts.fog,{scale:{value:1},dashSize:{value:1},totalSize:{value:2}}]),vertexShader:As.linedashed_vert,fragmentShader:As.linedashed_frag},depth:{uniforms:Ss.merge([Ts.common,Ts.displacementmap]),vertexShader:As.depth_vert,fragmentShader:As.depth_frag},normal:{uniforms:Ss.merge([Ts.common,Ts.bumpmap,Ts.normalmap,Ts.displacementmap,{opacity:{value:1}}]),vertexShader:As.normal_vert,fragmentShader:As.normal_frag},cube:{uniforms:{tCube:{value:null},tFlip:{value:-1},opacity:{value:1}},vertexShader:As.cube_vert,fragmentShader:As.cube_frag},equirect:{uniforms:{tEquirect:{value:null}},vertexShader:As.equirect_vert,fragmentShader:As.equirect_frag},distanceRGBA:{uniforms:Ss.merge([Ts.common,Ts.displacementmap,{referencePosition:{value:new a},nearDistance:{value:1},farDistance:{value:1e3}}]),vertexShader:As.distanceRGBA_vert,fragmentShader:As.distanceRGBA_frag},shadow:{uniforms:Ss.merge([Ts.lights,Ts.fog,{color:{value:new q(0)},opacity:{value:1}}]),vertexShader:As.shadow_vert,fragmentShader:As.shadow_frag}};Rs.physical={uniforms:Ss.merge([Rs.standard.uniforms,{clearCoat:{value:0},clearCoatRoughness:{value:0}}]),vertexShader:As.meshphysical_vert,fragmentShader:As.meshphysical_frag},Object.assign(Y.prototype,{set:function(t,e){return this.min.copy(t),this.max.copy(e),this},setFromPoints:function(t){this.makeEmpty();for(var e=0,i=t.length;e<i;e++)this.expandByPoint(t[e]);return this},setFromCenterAndSize:function(){var t=new i;return function(e,i){var n=t.copy(i).multiplyScalar(.5);return this.min.copy(e).sub(n),this.max.copy(e).add(n),this}}(),clone:function(){return(new this.constructor).copy(this)},copy:function(t){return this.min.copy(t.min),this.max.copy(t.max),this},makeEmpty:function(){return this.min.x=this.min.y=1/0,this.max.x=this.max.y=-1/0,this},isEmpty:function(){return this.max.x<this.min.x||this.max.y<this.min.y},getCenter:function(t){var e=t||new i;return this.isEmpty()?e.set(0,0):e.addVectors(this.min,this.max).multiplyScalar(.5)},getSize:function(t){var e=t||new i;return this.isEmpty()?e.set(0,0):e.subVectors(this.max,this.min)},expandByPoint:function(t){return this.min.min(t),this.max.max(t),this},expandByVector:function(t){return this.min.sub(t),this.max.add(t),this},expandByScalar:function(t){return this.min.addScalar(-t),this.max.addScalar(t),this},containsPoint:function(t){return!(t.x<this.min.x||t.x>this.max.x||t.y<this.min.y||t.y>this.max.y)},containsBox:function(t){return this.min.x<=t.min.x&&t.max.x<=this.max.x&&this.min.y<=t.min.y&&t.max.y<=this.max.y},getParameter:function(t,e){return(e||new i).set((t.x-this.min.x)/(this.max.x-this.min.x),(t.y-this.min.y)/(this.max.y-this.min.y))},intersectsBox:function(t){return!(t.max.x<this.min.x||t.min.x>this.max.x||t.max.y<this.min.y||t.min.y>this.max.y)},clampPoint:function(t,e){return(e||new i).copy(t).clamp(this.min,this.max)},distanceToPoint:function(){var t=new i;return function(e){return t.copy(e).clamp(this.min,this.max).sub(e).length()}}(),intersect:function(t){return this.min.max(t.min),this.max.min(t.max),this},union:function(t){return this.min.min(t.min),this.max.max(t.max),this},translate:function(t){return this.min.add(t),this.max.add(t),this},equals:function(t){return t.min.equals(this.min)&&t.max.equals(this.max)}}),J.prototype=Object.create(s.prototype),J.prototype.constructor=J;var Ls=0;Object.assign(K.prototype,e.prototype,{isMaterial:!0,onBeforeCompile:function(){},setValues:function(t){if(void 0!==t)for(var e in t){var i=t[e];if(void 0!==i)if(\"shading\"!==e){var n=this[e];void 0!==n?n&&n.isColor?n.set(i):n&&n.isVector3&&i&&i.isVector3?n.copy(i):this[e]=\"overdraw\"===e?Number(i):i:console.warn(\"THREE.\"+this.type+\": '\"+e+\"' is not a property of this material.\")}else console.warn(\"THREE.\"+this.type+\": .shading has been removed. Use the boolean .flatShading instead.\"),this.flatShading=1===i;else console.warn(\"THREE.Material: '\"+e+\"' parameter is undefined.\")}},toJSON:function(t){function e(t){var e=[];for(var i in t){var n=t[i];delete n.metadata,e.push(n)}return e}var i=void 0===t||\"string\"==typeof t;i&&(t={textures:{},images:{}});var n={metadata:{version:4.5,type:\"Material\",generator:\"Material.toJSON\"}};if(n.uuid=this.uuid,n.type=this.type,\"\"!==this.name&&(n.name=this.name),this.color&&this.color.isColor&&(n.color=this.color.getHex()),void 0!==this.roughness&&(n.roughness=this.roughness),void 0!==this.metalness&&(n.metalness=this.metalness),this.emissive&&this.emissive.isColor&&(n.emissive=this.emissive.getHex()),1!==this.emissiveIntensity&&(n.emissiveIntensity=this.emissiveIntensity),this.specular&&this.specular.isColor&&(n.specular=this.specular.getHex()),void 0!==this.shininess&&(n.shininess=this.shininess),void 0!==this.clearCoat&&(n.clearCoat=this.clearCoat),void 0!==this.clearCoatRoughness&&(n.clearCoatRoughness=this.clearCoatRoughness),this.map&&this.map.isTexture&&(n.map=this.map.toJSON(t).uuid),this.alphaMap&&this.alphaMap.isTexture&&(n.alphaMap=this.alphaMap.toJSON(t).uuid),this.lightMap&&this.lightMap.isTexture&&(n.lightMap=this.lightMap.toJSON(t).uuid),this.bumpMap&&this.bumpMap.isTexture&&(n.bumpMap=this.bumpMap.toJSON(t).uuid,n.bumpScale=this.bumpScale),this.normalMap&&this.normalMap.isTexture&&(n.normalMap=this.normalMap.toJSON(t).uuid,n.normalScale=this.normalScale.toArray()),this.displacementMap&&this.displacementMap.isTexture&&(n.displacementMap=this.displacementMap.toJSON(t).uuid,n.displacementScale=this.displacementScale,n.displacementBias=this.displacementBias),this.roughnessMap&&this.roughnessMap.isTexture&&(n.roughnessMap=this.roughnessMap.toJSON(t).uuid),this.metalnessMap&&this.metalnessMap.isTexture&&(n.metalnessMap=this.metalnessMap.toJSON(t).uuid),this.emissiveMap&&this.emissiveMap.isTexture&&(n.emissiveMap=this.emissiveMap.toJSON(t).uuid),this.specularMap&&this.specularMap.isTexture&&(n.specularMap=this.specularMap.toJSON(t).uuid),this.envMap&&this.envMap.isTexture&&(n.envMap=this.envMap.toJSON(t).uuid,n.reflectivity=this.reflectivity),this.gradientMap&&this.gradientMap.isTexture&&(n.gradientMap=this.gradientMap.toJSON(t).uuid),void 0!==this.size&&(n.size=this.size),void 0!==this.sizeAttenuation&&(n.sizeAttenuation=this.sizeAttenuation),this.blending!==Sa&&(n.blending=this.blending),!0===this.flatShading&&(n.flatShading=this.flatShading),this.side!==xa&&(n.side=this.side),this.vertexColors!==wa&&(n.vertexColors=this.vertexColors),this.opacity<1&&(n.opacity=this.opacity),!0===this.transparent&&(n.transparent=this.transparent),n.depthFunc=this.depthFunc,n.depthTest=this.depthTest,n.depthWrite=this.depthWrite,0!==this.rotation&&(n.rotation=this.rotation),1!==this.linewidth&&(n.linewidth=this.linewidth),void 0!==this.dashSize&&(n.dashSize=this.dashSize),void 0!==this.gapSize&&(n.gapSize=this.gapSize),void 0!==this.scale&&(n.scale=this.scale),!0===this.dithering&&(n.dithering=!0),this.alphaTest>0&&(n.alphaTest=this.alphaTest),!0===this.premultipliedAlpha&&(n.premultipliedAlpha=this.premultipliedAlpha),!0===this.wireframe&&(n.wireframe=this.wireframe),this.wireframeLinewidth>1&&(n.wireframeLinewidth=this.wireframeLinewidth),\"round\"!==this.wireframeLinecap&&(n.wireframeLinecap=this.wireframeLinecap),\"round\"!==this.wireframeLinejoin&&(n.wireframeLinejoin=this.wireframeLinejoin),!0===this.morphTargets&&(n.morphTargets=!0),!0===this.skinning&&(n.skinning=!0),!1===this.visible&&(n.visible=!1),\"{}\"!==JSON.stringify(this.userData)&&(n.userData=this.userData),i){var r=e(t.textures),a=e(t.images);r.length>0&&(n.textures=r),a.length>0&&(n.images=a)}return n},clone:function(){return(new this.constructor).copy(this)},copy:function(t){this.name=t.name,this.fog=t.fog,this.lights=t.lights,this.blending=t.blending,this.side=t.side,this.flatShading=t.flatShading,this.vertexColors=t.vertexColors,this.opacity=t.opacity,this.transparent=t.transparent,this.blendSrc=t.blendSrc,this.blendDst=t.blendDst,this.blendEquation=t.blendEquation,this.blendSrcAlpha=t.blendSrcAlpha,this.blendDstAlpha=t.blendDstAlpha,this.blendEquationAlpha=t.blendEquationAlpha,this.depthFunc=t.depthFunc,this.depthTest=t.depthTest,this.depthWrite=t.depthWrite,this.colorWrite=t.colorWrite,this.precision=t.precision,this.polygonOffset=t.polygonOffset,this.polygonOffsetFactor=t.polygonOffsetFactor,this.polygonOffsetUnits=t.polygonOffsetUnits,this.dithering=t.dithering,this.alphaTest=t.alphaTest,this.premultipliedAlpha=t.premultipliedAlpha,this.overdraw=t.overdraw,this.visible=t.visible,this.userData=JSON.parse(JSON.stringify(t.userData)),this.clipShadows=t.clipShadows,this.clipIntersection=t.clipIntersection;var e=t.clippingPlanes,i=null;if(null!==e){var n=e.length;i=new Array(n);for(var r=0;r!==n;++r)i[r]=e[r].clone()}return this.clippingPlanes=i,this},dispose:function(){this.dispatchEvent({type:\"dispose\"})}}),$.prototype=Object.create(K.prototype),$.prototype.constructor=$,$.prototype.isMeshDepthMaterial=!0,$.prototype.copy=function(t){return K.prototype.copy.call(this,t),this.depthPacking=t.depthPacking,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.map=t.map,this.alphaMap=t.alphaMap,this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this},tt.prototype=Object.create(K.prototype),tt.prototype.constructor=tt,tt.prototype.isMeshDistanceMaterial=!0,tt.prototype.copy=function(t){return K.prototype.copy.call(this,t),this.referencePosition.copy(t.referencePosition),this.nearDistance=t.nearDistance,this.farDistance=t.farDistance,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.map=t.map,this.alphaMap=t.alphaMap,this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this},Object.assign(et.prototype,{isBox3:!0,set:function(t,e){return this.min.copy(t),this.max.copy(e),this},setFromArray:function(t){for(var e=1/0,i=1/0,n=1/0,r=-1/0,a=-1/0,o=-1/0,s=0,c=t.length;s<c;s+=3){var h=t[s],l=t[s+1],u=t[s+2];h<e&&(e=h),l<i&&(i=l),u<n&&(n=u),h>r&&(r=h),l>a&&(a=l),u>o&&(o=u)}return this.min.set(e,i,n),this.max.set(r,a,o),this},setFromBufferAttribute:function(t){for(var e=1/0,i=1/0,n=1/0,r=-1/0,a=-1/0,o=-1/0,s=0,c=t.count;s<c;s++){var h=t.getX(s),l=t.getY(s),u=t.getZ(s);h<e&&(e=h),l<i&&(i=l),u<n&&(n=u),h>r&&(r=h),l>a&&(a=l),u>o&&(o=u)}return this.min.set(e,i,n),this.max.set(r,a,o),this},setFromPoints:function(t){this.makeEmpty();for(var e=0,i=t.length;e<i;e++)this.expandByPoint(t[e]);return this},setFromCenterAndSize:function(){var t=new a;return function(e,i){var n=t.copy(i).multiplyScalar(.5);return this.min.copy(e).sub(n),this.max.copy(e).add(n),this}}(),setFromObject:function(t){return this.makeEmpty(),this.expandByObject(t)},clone:function(){return(new this.constructor).copy(this)},copy:function(t){return this.min.copy(t.min),this.max.copy(t.max),this},makeEmpty:function(){return this.min.x=this.min.y=this.min.z=1/0,this.max.x=this.max.y=this.max.z=-1/0,this},isEmpty:function(){return this.max.x<this.min.x||this.max.y<this.min.y||this.max.z<this.min.z},getCenter:function(t){var e=t||new a;return this.isEmpty()?e.set(0,0,0):e.addVectors(this.min,this.max).multiplyScalar(.5)},getSize:function(t){var e=t||new a;return this.isEmpty()?e.set(0,0,0):e.subVectors(this.max,this.min)},expandByPoint:function(t){return this.min.min(t),this.max.max(t),this},expandByVector:function(t){return this.min.sub(t),this.max.add(t),this},expandByScalar:function(t){return this.min.addScalar(-t),this.max.addScalar(t),this},expandByObject:function(){function t(t){var a=t.geometry;if(void 0!==a)if(a.isGeometry){var o=a.vertices;for(i=0,n=o.length;i<n;i++)r.copy(o[i]),r.applyMatrix4(t.matrixWorld),e.expandByPoint(r)}else if(a.isBufferGeometry){var s=a.attributes.position;if(void 0!==s)for(i=0,n=s.count;i<n;i++)r.fromBufferAttribute(s,i).applyMatrix4(t.matrixWorld),e.expandByPoint(r)}}var e,i,n,r=new a;return function(i){return e=this,i.updateMatrixWorld(!0),i.traverse(t),this}}(),containsPoint:function(t){return!(t.x<this.min.x||t.x>this.max.x||t.y<this.min.y||t.y>this.max.y||t.z<this.min.z||t.z>this.max.z)},containsBox:function(t){return this.min.x<=t.min.x&&t.max.x<=this.max.x&&this.min.y<=t.min.y&&t.max.y<=this.max.y&&this.min.z<=t.min.z&&t.max.z<=this.max.z},getParameter:function(t,e){return(e||new a).set((t.x-this.min.x)/(this.max.x-this.min.x),(t.y-this.min.y)/(this.max.y-this.min.y),(t.z-this.min.z)/(this.max.z-this.min.z))},intersectsBox:function(t){return!(t.max.x<this.min.x||t.min.x>this.max.x||t.max.y<this.min.y||t.min.y>this.max.y||t.max.z<this.min.z||t.min.z>this.max.z)},intersectsSphere:function(){var t=new a;return function(e){return this.clampPoint(e.center,t),t.distanceToSquared(e.center)<=e.radius*e.radius}}(),intersectsPlane:function(t){var e,i;return t.normal.x>0?(e=t.normal.x*this.min.x,i=t.normal.x*this.max.x):(e=t.normal.x*this.max.x,i=t.normal.x*this.min.x),t.normal.y>0?(e+=t.normal.y*this.min.y,i+=t.normal.y*this.max.y):(e+=t.normal.y*this.max.y,i+=t.normal.y*this.min.y),t.normal.z>0?(e+=t.normal.z*this.min.z,i+=t.normal.z*this.max.z):(e+=t.normal.z*this.max.z,i+=t.normal.z*this.min.z),e<=t.constant&&i>=t.constant},clampPoint:function(t,e){return(e||new a).copy(t).clamp(this.min,this.max)},distanceToPoint:function(){var t=new a;return function(e){return t.copy(e).clamp(this.min,this.max).sub(e).length()}}(),getBoundingSphere:function(){var t=new a;return function(e){var i=e||new it;return this.getCenter(i.center),i.radius=.5*this.getSize(t).length(),i}}(),intersect:function(t){return this.min.max(t.min),this.max.min(t.max),this.isEmpty()&&this.makeEmpty(),this},union:function(t){return this.min.min(t.min),this.max.max(t.max),this},applyMatrix4:function(){var t=[new a,new a,new a,new a,new a,new a,new a,new a];return function(e){return this.isEmpty()?this:(t[0].set(this.min.x,this.min.y,this.min.z).applyMatrix4(e),t[1].set(this.min.x,this.min.y,this.max.z).applyMatrix4(e),t[2].set(this.min.x,this.max.y,this.min.z).applyMatrix4(e),t[3].set(this.min.x,this.max.y,this.max.z).applyMatrix4(e),t[4].set(this.max.x,this.min.y,this.min.z).applyMatrix4(e),t[5].set(this.max.x,this.min.y,this.max.z).applyMatrix4(e),t[6].set(this.max.x,this.max.y,this.min.z).applyMatrix4(e),t[7].set(this.max.x,this.max.y,this.max.z).applyMatrix4(e),this.setFromPoints(t),this)}}(),translate:function(t){return this.min.add(t),this.max.add(t),this},equals:function(t){return t.min.equals(this.min)&&t.max.equals(this.max)}}),Object.assign(it.prototype,{set:function(t,e){return this.center.copy(t),this.radius=e,this},setFromPoints:function(){var t=new et;return function(e,i){var n=this.center;void 0!==i?n.copy(i):t.setFromPoints(e).getCenter(n);for(var r=0,a=0,o=e.length;a<o;a++)r=Math.max(r,n.distanceToSquared(e[a]));return this.radius=Math.sqrt(r),this}}(),clone:function(){return(new this.constructor).copy(this)},copy:function(t){return this.center.copy(t.center),this.radius=t.radius,this},empty:function(){return this.radius<=0},containsPoint:function(t){return t.distanceToSquared(this.center)<=this.radius*this.radius},distanceToPoint:function(t){return t.distanceTo(this.center)-this.radius},intersectsSphere:function(t){var e=this.radius+t.radius;return t.center.distanceToSquared(this.center)<=e*e},intersectsBox:function(t){return t.intersectsSphere(this)},intersectsPlane:function(t){return Math.abs(t.distanceToPoint(this.center))<=this.radius},clampPoint:function(t,e){var i=this.center.distanceToSquared(t),n=e||new a;return n.copy(t),i>this.radius*this.radius&&(n.sub(this.center).normalize(),n.multiplyScalar(this.radius).add(this.center)),n},getBoundingBox:function(t){var e=t||new et;return e.set(this.center,this.center),e.expandByScalar(this.radius),e},applyMatrix4:function(t){return this.center.applyMatrix4(t),this.radius=this.radius*t.getMaxScaleOnAxis(),this},translate:function(t){return this.center.add(t),this},equals:function(t){return t.center.equals(this.center)&&t.radius===this.radius}}),Object.assign(nt.prototype,{set:function(t,e){return this.normal.copy(t),this.constant=e,this},setComponents:function(t,e,i,n){return this.normal.set(t,e,i),this.constant=n,this},setFromNormalAndCoplanarPoint:function(t,e){return this.normal.copy(t),this.constant=-e.dot(this.normal),this},setFromCoplanarPoints:function(){var t=new a,e=new a;return function(i,n,r){var a=t.subVectors(r,n).cross(e.subVectors(i,n)).normalize();return this.setFromNormalAndCoplanarPoint(a,i),this}}(),clone:function(){return(new this.constructor).copy(this)},copy:function(t){return this.normal.copy(t.normal),this.constant=t.constant,this},normalize:function(){var t=1/this.normal.length();return this.normal.multiplyScalar(t),this.constant*=t,this},negate:function(){return this.constant*=-1,this.normal.negate(),this},distanceToPoint:function(t){return this.normal.dot(t)+this.constant},distanceToSphere:function(t){return this.distanceToPoint(t.center)-t.radius},projectPoint:function(t,e){return(e||new a).copy(this.normal).multiplyScalar(-this.distanceToPoint(t)).add(t)},intersectLine:function(){var t=new a;return function(e,i){var n=i||new a,r=e.delta(t),o=this.normal.dot(r);if(0!==o){var s=-(e.start.dot(this.normal)+this.constant)/o;if(!(s<0||s>1))return n.copy(r).multiplyScalar(s).add(e.start)}else if(0===this.distanceToPoint(e.start))return n.copy(e.start)}}(),intersectsLine:function(t){var e=this.distanceToPoint(t.start),i=this.distanceToPoint(t.end);return e<0&&i>0||i<0&&e>0},intersectsBox:function(t){return t.intersectsPlane(this)},intersectsSphere:function(t){return t.intersectsPlane(this)},coplanarPoint:function(t){return(t||new a).copy(this.normal).multiplyScalar(-this.constant)},applyMatrix4:function(){var t=new a,e=new o;return function(i,n){var r=n||e.getNormalMatrix(i),a=this.coplanarPoint(t).applyMatrix4(i),o=this.normal.applyMatrix3(r).normalize();return this.constant=-a.dot(o),this}}(),translate:function(t){return this.constant-=t.dot(this.normal),this},equals:function(t){return t.normal.equals(this.normal)&&t.constant===this.constant}}),Object.assign(rt.prototype,{set:function(t,e,i,n,r,a){var o=this.planes;return o[0].copy(t),o[1].copy(e),o[2].copy(i),o[3].copy(n),o[4].copy(r),o[5].copy(a),this},clone:function(){return(new this.constructor).copy(this)},copy:function(t){for(var e=this.planes,i=0;i<6;i++)e[i].copy(t.planes[i]);return this},setFromMatrix:function(t){var e=this.planes,i=t.elements,n=i[0],r=i[1],a=i[2],o=i[3],s=i[4],c=i[5],h=i[6],l=i[7],u=i[8],p=i[9],d=i[10],f=i[11],m=i[12],g=i[13],v=i[14],y=i[15];return e[0].setComponents(o-n,l-s,f-u,y-m).normalize(),e[1].setComponents(o+n,l+s,f+u,y+m).normalize(),e[2].setComponents(o+r,l+c,f+p,y+g).normalize(),e[3].setComponents(o-r,l-c,f-p,y-g).normalize(),e[4].setComponents(o-a,l-h,f-d,y-v).normalize(),e[5].setComponents(o+a,l+h,f+d,y+v).normalize(),this},intersectsObject:function(){var t=new it;return function(e){var i=e.geometry;return null===i.boundingSphere&&i.computeBoundingSphere(),t.copy(i.boundingSphere).applyMatrix4(e.matrixWorld),this.intersectsSphere(t)}}(),intersectsSprite:function(){var t=new it;return function(e){return t.center.set(0,0,0),t.radius=.7071067811865476,t.applyMatrix4(e.matrixWorld),this.intersectsSphere(t)}}(),intersectsSphere:function(t){for(var e=this.planes,i=t.center,n=-t.radius,r=0;r<6;r++){if(e[r].distanceToPoint(i)<n)return!1}return!0},intersectsBox:function(){var t=new a,e=new a;return function(i){for(var n=this.planes,r=0;r<6;r++){var a=n[r];t.x=a.normal.x>0?i.min.x:i.max.x,e.x=a.normal.x>0?i.max.x:i.min.x,t.y=a.normal.y>0?i.min.y:i.max.y,e.y=a.normal.y>0?i.max.y:i.min.y,t.z=a.normal.z>0?i.min.z:i.max.z,e.z=a.normal.z>0?i.max.z:i.min.z;var o=a.distanceToPoint(t),s=a.distanceToPoint(e);if(o<0&&s<0)return!1}return!0}}(),containsPoint:function(t){for(var e=this.planes,i=0;i<6;i++)if(e[i].distanceToPoint(t)<0)return!1;return!0}}),st.RotationOrders=[\"XYZ\",\"YZX\",\"ZXY\",\"XZY\",\"YXZ\",\"ZYX\"],st.DefaultOrder=\"XYZ\",Object.defineProperties(st.prototype,{x:{get:function(){return this._x},set:function(t){this._x=t,this.onChangeCallback()}},y:{get:function(){return this._y},set:function(t){this._y=t,this.onChangeCallback()}},z:{get:function(){return this._z},set:function(t){this._z=t,this.onChangeCallback()}},order:{get:function(){return this._order},set:function(t){this._order=t,this.onChangeCallback()}}}),Object.assign(st.prototype,{isEuler:!0,set:function(t,e,i,n){return this._x=t,this._y=e,this._z=i,this._order=n||this._order,this.onChangeCallback(),this},clone:function(){return new this.constructor(this._x,this._y,this._z,this._order)},copy:function(t){return this._x=t._x,this._y=t._y,this._z=t._z,this._order=t._order,this.onChangeCallback(),this},setFromRotationMatrix:function(t,e,i){var n=ms.clamp,r=t.elements,a=r[0],o=r[4],s=r[8],c=r[1],h=r[5],l=r[9],u=r[2],p=r[6],d=r[10];return e=e||this._order,\"XYZ\"===e?(this._y=Math.asin(n(s,-1,1)),Math.abs(s)<.99999?(this._x=Math.atan2(-l,d),this._z=Math.atan2(-o,a)):(this._x=Math.atan2(p,h),this._z=0)):\"YXZ\"===e?(this._x=Math.asin(-n(l,-1,1)),Math.abs(l)<.99999?(this._y=Math.atan2(s,d),this._z=Math.atan2(c,h)):(this._y=Math.atan2(-u,a),this._z=0)):\"ZXY\"===e?(this._x=Math.asin(n(p,-1,1)),Math.abs(p)<.99999?(this._y=Math.atan2(-u,d),this._z=Math.atan2(-o,h)):(this._y=0,this._z=Math.atan2(c,a))):\"ZYX\"===e?(this._y=Math.asin(-n(u,-1,1)),Math.abs(u)<.99999?(this._x=Math.atan2(p,d),this._z=Math.atan2(c,a)):(this._x=0,this._z=Math.atan2(-o,h))):\"YZX\"===e?(this._z=Math.asin(n(c,-1,1)),Math.abs(c)<.99999?(this._x=Math.atan2(-l,h),this._y=Math.atan2(-u,a)):(this._x=0,this._y=Math.atan2(s,d))):\"XZY\"===e?(this._z=Math.asin(-n(o,-1,1)),Math.abs(o)<.99999?(this._x=Math.atan2(p,h),this._y=Math.atan2(s,a)):(this._x=Math.atan2(-l,d),this._y=0)):console.warn(\"THREE.Euler: .setFromRotationMatrix() given unsupported order: \"+e),this._order=e,!1!==i&&this.onChangeCallback(),this},setFromQuaternion:function(){var t=new n;return function(e,i,n){return t.makeRotationFromQuaternion(e),this.setFromRotationMatrix(t,i,n)}}(),setFromVector3:function(t,e){return this.set(t.x,t.y,t.z,e||this._order)},reorder:function(){var t=new r;return function(e){return t.setFromEuler(this),this.setFromQuaternion(t,e)}}(),equals:function(t){return t._x===this._x&&t._y===this._y&&t._z===this._z&&t._order===this._order},fromArray:function(t){return this._x=t[0],this._y=t[1],this._z=t[2],void 0!==t[3]&&(this._order=t[3]),this.onChangeCallback(),this},toArray:function(t,e){return void 0===t&&(t=[]),void 0===e&&(e=0),t[e]=this._x,t[e+1]=this._y,t[e+2]=this._z,t[e+3]=this._order,t},toVector3:function(t){return t?t.set(this._x,this._y,this._z):new a(this._x,this._y,this._z)},onChange:function(t){return this.onChangeCallback=t,this},onChangeCallback:function(){}}),Object.assign(ct.prototype,{set:function(t){this.mask=1<<t|0},enable:function(t){this.mask|=1<<t|0},toggle:function(t){this.mask^=1<<t|0},disable:function(t){this.mask&=~(1<<t|0)},test:function(t){return 0!=(this.mask&t.mask)}});var Ps=0;ht.DefaultUp=new a(0,1,0),ht.DefaultMatrixAutoUpdate=!0,Object.assign(ht.prototype,e.prototype,{isObject3D:!0,onBeforeRender:function(){},onAfterRender:function(){},applyMatrix:function(t){this.matrix.multiplyMatrices(t,this.matrix),this.matrix.decompose(this.position,this.quaternion,this.scale)},applyQuaternion:function(t){return this.quaternion.premultiply(t),this},setRotationFromAxisAngle:function(t,e){this.quaternion.setFromAxisAngle(t,e)},setRotationFromEuler:function(t){this.quaternion.setFromEuler(t,!0)},setRotationFromMatrix:function(t){this.quaternion.setFromRotationMatrix(t)},setRotationFromQuaternion:function(t){this.quaternion.copy(t)},rotateOnAxis:function(){var t=new r;return function(e,i){return t.setFromAxisAngle(e,i),this.quaternion.multiply(t),this}}(),rotateOnWorldAxis:function(){var t=new r;return function(e,i){return t.setFromAxisAngle(e,i),this.quaternion.premultiply(t),this}}(),rotateX:function(){var t=new a(1,0,0);return function(e){return this.rotateOnAxis(t,e)}}(),rotateY:function(){\nvar t=new a(0,1,0);return function(e){return this.rotateOnAxis(t,e)}}(),rotateZ:function(){var t=new a(0,0,1);return function(e){return this.rotateOnAxis(t,e)}}(),translateOnAxis:function(){var t=new a;return function(e,i){return t.copy(e).applyQuaternion(this.quaternion),this.position.add(t.multiplyScalar(i)),this}}(),translateX:function(){var t=new a(1,0,0);return function(e){return this.translateOnAxis(t,e)}}(),translateY:function(){var t=new a(0,1,0);return function(e){return this.translateOnAxis(t,e)}}(),translateZ:function(){var t=new a(0,0,1);return function(e){return this.translateOnAxis(t,e)}}(),localToWorld:function(t){return t.applyMatrix4(this.matrixWorld)},worldToLocal:function(){var t=new n;return function(e){return e.applyMatrix4(t.getInverse(this.matrixWorld))}}(),lookAt:function(){var t=new n,e=new a;return function(i,n,r){i.isVector3?e.copy(i):e.set(i,n,r),this.isCamera?t.lookAt(this.position,e,this.up):t.lookAt(e,this.position,this.up),this.quaternion.setFromRotationMatrix(t)}}(),add:function(t){if(arguments.length>1){for(var e=0;e<arguments.length;e++)this.add(arguments[e]);return this}return t===this?(console.error(\"THREE.Object3D.add: object can't be added as a child of itself.\",t),this):(t&&t.isObject3D?(null!==t.parent&&t.parent.remove(t),t.parent=this,t.dispatchEvent({type:\"added\"}),this.children.push(t)):console.error(\"THREE.Object3D.add: object not an instance of THREE.Object3D.\",t),this)},remove:function(t){if(arguments.length>1){for(var e=0;e<arguments.length;e++)this.remove(arguments[e]);return this}var i=this.children.indexOf(t);return-1!==i&&(t.parent=null,t.dispatchEvent({type:\"removed\"}),this.children.splice(i,1)),this},getObjectById:function(t){return this.getObjectByProperty(\"id\",t)},getObjectByName:function(t){return this.getObjectByProperty(\"name\",t)},getObjectByProperty:function(t,e){if(this[t]===e)return this;for(var i=0,n=this.children.length;i<n;i++){var r=this.children[i],a=r.getObjectByProperty(t,e);if(void 0!==a)return a}},getWorldPosition:function(t){var e=t||new a;return this.updateMatrixWorld(!0),e.setFromMatrixPosition(this.matrixWorld)},getWorldQuaternion:function(){var t=new a,e=new a;return function(i){var n=i||new r;return this.updateMatrixWorld(!0),this.matrixWorld.decompose(t,n,e),n}}(),getWorldRotation:function(){var t=new r;return function(e){var i=e||new st;return this.getWorldQuaternion(t),i.setFromQuaternion(t,this.rotation.order,!1)}}(),getWorldScale:function(){var t=new a,e=new r;return function(i){var n=i||new a;return this.updateMatrixWorld(!0),this.matrixWorld.decompose(t,e,n),n}}(),getWorldDirection:function(){var t=new r;return function(e){var i=e||new a;return this.getWorldQuaternion(t),i.set(0,0,1).applyQuaternion(t)}}(),raycast:function(){},traverse:function(t){t(this);for(var e=this.children,i=0,n=e.length;i<n;i++)e[i].traverse(t)},traverseVisible:function(t){if(!1!==this.visible){t(this);for(var e=this.children,i=0,n=e.length;i<n;i++)e[i].traverseVisible(t)}},traverseAncestors:function(t){var e=this.parent;null!==e&&(t(e),e.traverseAncestors(t))},updateMatrix:function(){this.matrix.compose(this.position,this.quaternion,this.scale),this.matrixWorldNeedsUpdate=!0},updateMatrixWorld:function(t){this.matrixAutoUpdate&&this.updateMatrix(),(this.matrixWorldNeedsUpdate||t)&&(null===this.parent?this.matrixWorld.copy(this.matrix):this.matrixWorld.multiplyMatrices(this.parent.matrixWorld,this.matrix),this.matrixWorldNeedsUpdate=!1,t=!0);for(var e=this.children,i=0,n=e.length;i<n;i++)e[i].updateMatrixWorld(t)},toJSON:function(t){function e(e,i){return void 0===e[i.uuid]&&(e[i.uuid]=i.toJSON(t)),i.uuid}function i(t){var e=[];for(var i in t){var n=t[i];delete n.metadata,e.push(n)}return e}var n=void 0===t||\"string\"==typeof t,r={};n&&(t={geometries:{},materials:{},textures:{},images:{}},r.metadata={version:4.5,type:\"Object\",generator:\"Object3D.toJSON\"});var a={};if(a.uuid=this.uuid,a.type=this.type,\"\"!==this.name&&(a.name=this.name),!0===this.castShadow&&(a.castShadow=!0),!0===this.receiveShadow&&(a.receiveShadow=!0),!1===this.visible&&(a.visible=!1),\"{}\"!==JSON.stringify(this.userData)&&(a.userData=this.userData),a.matrix=this.matrix.toArray(),void 0!==this.geometry&&(a.geometry=e(t.geometries,this.geometry)),void 0!==this.material)if(Array.isArray(this.material)){for(var o=[],s=0,c=this.material.length;s<c;s++)o.push(e(t.materials,this.material[s]));a.material=o}else a.material=e(t.materials,this.material);if(this.children.length>0){a.children=[];for(var s=0;s<this.children.length;s++)a.children.push(this.children[s].toJSON(t).object)}if(n){var h=i(t.geometries),l=i(t.materials),u=i(t.textures),p=i(t.images);h.length>0&&(r.geometries=h),l.length>0&&(r.materials=l),u.length>0&&(r.textures=u),p.length>0&&(r.images=p)}return r.object=a,r},clone:function(t){return(new this.constructor).copy(this,t)},copy:function(t,e){if(void 0===e&&(e=!0),this.name=t.name,this.up.copy(t.up),this.position.copy(t.position),this.quaternion.copy(t.quaternion),this.scale.copy(t.scale),this.matrix.copy(t.matrix),this.matrixWorld.copy(t.matrixWorld),this.matrixAutoUpdate=t.matrixAutoUpdate,this.matrixWorldNeedsUpdate=t.matrixWorldNeedsUpdate,this.layers.mask=t.layers.mask,this.visible=t.visible,this.castShadow=t.castShadow,this.receiveShadow=t.receiveShadow,this.frustumCulled=t.frustumCulled,this.renderOrder=t.renderOrder,this.userData=JSON.parse(JSON.stringify(t.userData)),!0===e)for(var i=0;i<t.children.length;i++){var n=t.children[i];this.add(n.clone())}return this}}),lt.prototype=Object.assign(Object.create(ht.prototype),{constructor:lt,isCamera:!0,copy:function(t,e){return ht.prototype.copy.call(this,t,e),this.matrixWorldInverse.copy(t.matrixWorldInverse),this.projectionMatrix.copy(t.projectionMatrix),this},getWorldDirection:function(){var t=new r;return function(e){var i=e||new a;return this.getWorldQuaternion(t),i.set(0,0,-1).applyQuaternion(t)}}(),updateMatrixWorld:function(t){ht.prototype.updateMatrixWorld.call(this,t),this.matrixWorldInverse.getInverse(this.matrixWorld)},clone:function(){return(new this.constructor).copy(this)}}),ut.prototype=Object.assign(Object.create(lt.prototype),{constructor:ut,isOrthographicCamera:!0,copy:function(t,e){return lt.prototype.copy.call(this,t,e),this.left=t.left,this.right=t.right,this.top=t.top,this.bottom=t.bottom,this.near=t.near,this.far=t.far,this.zoom=t.zoom,this.view=null===t.view?null:Object.assign({},t.view),this},setViewOffset:function(t,e,i,n,r,a){null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1}),this.view.enabled=!0,this.view.fullWidth=t,this.view.fullHeight=e,this.view.offsetX=i,this.view.offsetY=n,this.view.width=r,this.view.height=a,this.updateProjectionMatrix()},clearViewOffset:function(){null!==this.view&&(this.view.enabled=!1),this.updateProjectionMatrix()},updateProjectionMatrix:function(){var t=(this.right-this.left)/(2*this.zoom),e=(this.top-this.bottom)/(2*this.zoom),i=(this.right+this.left)/2,n=(this.top+this.bottom)/2,r=i-t,a=i+t,o=n+e,s=n-e;if(null!==this.view&&this.view.enabled){var c=this.zoom/(this.view.width/this.view.fullWidth),h=this.zoom/(this.view.height/this.view.fullHeight),l=(this.right-this.left)/this.view.width,u=(this.top-this.bottom)/this.view.height;r+=l*(this.view.offsetX/c),a=r+l*(this.view.width/c),o-=u*(this.view.offsetY/h),s=o-u*(this.view.height/h)}this.projectionMatrix.makeOrthographic(r,a,o,s,this.near,this.far)},toJSON:function(t){var e=ht.prototype.toJSON.call(this,t);return e.object.zoom=this.zoom,e.object.left=this.left,e.object.right=this.right,e.object.top=this.top,e.object.bottom=this.bottom,e.object.near=this.near,e.object.far=this.far,null!==this.view&&(e.object.view=Object.assign({},this.view)),e}}),Object.assign(pt.prototype,{clone:function(){return(new this.constructor).copy(this)},copy:function(t){this.a=t.a,this.b=t.b,this.c=t.c,this.normal.copy(t.normal),this.color.copy(t.color),this.materialIndex=t.materialIndex;for(var e=0,i=t.vertexNormals.length;e<i;e++)this.vertexNormals[e]=t.vertexNormals[e].clone();for(var e=0,i=t.vertexColors.length;e<i;e++)this.vertexColors[e]=t.vertexColors[e].clone();return this}});var Cs=0;Object.assign(dt.prototype,e.prototype,{isGeometry:!0,applyMatrix:function(t){for(var e=(new o).getNormalMatrix(t),i=0,n=this.vertices.length;i<n;i++){this.vertices[i].applyMatrix4(t)}for(var i=0,n=this.faces.length;i<n;i++){var r=this.faces[i];r.normal.applyMatrix3(e).normalize();for(var a=0,s=r.vertexNormals.length;a<s;a++)r.vertexNormals[a].applyMatrix3(e).normalize()}return null!==this.boundingBox&&this.computeBoundingBox(),null!==this.boundingSphere&&this.computeBoundingSphere(),this.verticesNeedUpdate=!0,this.normalsNeedUpdate=!0,this},rotateX:function(){var t=new n;return function(e){return t.makeRotationX(e),this.applyMatrix(t),this}}(),rotateY:function(){var t=new n;return function(e){return t.makeRotationY(e),this.applyMatrix(t),this}}(),rotateZ:function(){var t=new n;return function(e){return t.makeRotationZ(e),this.applyMatrix(t),this}}(),translate:function(){var t=new n;return function(e,i,n){return t.makeTranslation(e,i,n),this.applyMatrix(t),this}}(),scale:function(){var t=new n;return function(e,i,n){return t.makeScale(e,i,n),this.applyMatrix(t),this}}(),lookAt:function(){var t=new ht;return function(e){t.lookAt(e),t.updateMatrix(),this.applyMatrix(t.matrix)}}(),fromBufferGeometry:function(t){function e(t,e,i,r){var a=void 0!==c?[p[t].clone(),p[e].clone(),p[i].clone()]:[],o=void 0!==h?[n.colors[t].clone(),n.colors[e].clone(),n.colors[i].clone()]:[],s=new pt(t,e,i,a,o,r);n.faces.push(s),void 0!==l&&n.faceVertexUvs[0].push([d[t].clone(),d[e].clone(),d[i].clone()]),void 0!==u&&n.faceVertexUvs[1].push([f[t].clone(),f[e].clone(),f[i].clone()])}var n=this,r=null!==t.index?t.index.array:void 0,o=t.attributes,s=o.position.array,c=void 0!==o.normal?o.normal.array:void 0,h=void 0!==o.color?o.color.array:void 0,l=void 0!==o.uv?o.uv.array:void 0,u=void 0!==o.uv2?o.uv2.array:void 0;void 0!==u&&(this.faceVertexUvs[1]=[]);for(var p=[],d=[],f=[],m=0,g=0;m<s.length;m+=3,g+=2)n.vertices.push(new a(s[m],s[m+1],s[m+2])),void 0!==c&&p.push(new a(c[m],c[m+1],c[m+2])),void 0!==h&&n.colors.push(new q(h[m],h[m+1],h[m+2])),void 0!==l&&d.push(new i(l[g],l[g+1])),void 0!==u&&f.push(new i(u[g],u[g+1]));var v=t.groups;if(v.length>0)for(var m=0;m<v.length;m++)for(var y=v[m],x=y.start,b=y.count,g=x,_=x+b;g<_;g+=3)void 0!==r?e(r[g],r[g+1],r[g+2],y.materialIndex):e(g,g+1,g+2,y.materialIndex);else if(void 0!==r)for(var m=0;m<r.length;m+=3)e(r[m],r[m+1],r[m+2]);else for(var m=0;m<s.length/3;m+=3)e(m,m+1,m+2);return this.computeFaceNormals(),null!==t.boundingBox&&(this.boundingBox=t.boundingBox.clone()),null!==t.boundingSphere&&(this.boundingSphere=t.boundingSphere.clone()),this},center:function(){this.computeBoundingBox();var t=this.boundingBox.getCenter().negate();return this.translate(t.x,t.y,t.z),t},normalize:function(){this.computeBoundingSphere();var t=this.boundingSphere.center,e=this.boundingSphere.radius,i=0===e?1:1/e,r=new n;return r.set(i,0,0,-i*t.x,0,i,0,-i*t.y,0,0,i,-i*t.z,0,0,0,1),this.applyMatrix(r),this},computeFaceNormals:function(){for(var t=new a,e=new a,i=0,n=this.faces.length;i<n;i++){var r=this.faces[i],o=this.vertices[r.a],s=this.vertices[r.b],c=this.vertices[r.c];t.subVectors(c,s),e.subVectors(o,s),t.cross(e),t.normalize(),r.normal.copy(t)}},computeVertexNormals:function(t){void 0===t&&(t=!0);var e,i,n,r,o,s;for(s=new Array(this.vertices.length),e=0,i=this.vertices.length;e<i;e++)s[e]=new a;if(t){var c,h,l,u=new a,p=new a;for(n=0,r=this.faces.length;n<r;n++)o=this.faces[n],c=this.vertices[o.a],h=this.vertices[o.b],l=this.vertices[o.c],u.subVectors(l,h),p.subVectors(c,h),u.cross(p),s[o.a].add(u),s[o.b].add(u),s[o.c].add(u)}else for(this.computeFaceNormals(),n=0,r=this.faces.length;n<r;n++)o=this.faces[n],s[o.a].add(o.normal),s[o.b].add(o.normal),s[o.c].add(o.normal);for(e=0,i=this.vertices.length;e<i;e++)s[e].normalize();for(n=0,r=this.faces.length;n<r;n++){o=this.faces[n];var d=o.vertexNormals;3===d.length?(d[0].copy(s[o.a]),d[1].copy(s[o.b]),d[2].copy(s[o.c])):(d[0]=s[o.a].clone(),d[1]=s[o.b].clone(),d[2]=s[o.c].clone())}this.faces.length>0&&(this.normalsNeedUpdate=!0)},computeFlatVertexNormals:function(){var t,e,i;for(this.computeFaceNormals(),t=0,e=this.faces.length;t<e;t++){i=this.faces[t];var n=i.vertexNormals;3===n.length?(n[0].copy(i.normal),n[1].copy(i.normal),n[2].copy(i.normal)):(n[0]=i.normal.clone(),n[1]=i.normal.clone(),n[2]=i.normal.clone())}this.faces.length>0&&(this.normalsNeedUpdate=!0)},computeMorphNormals:function(){var t,e,i,n,r;for(i=0,n=this.faces.length;i<n;i++)for(r=this.faces[i],r.__originalFaceNormal?r.__originalFaceNormal.copy(r.normal):r.__originalFaceNormal=r.normal.clone(),r.__originalVertexNormals||(r.__originalVertexNormals=[]),t=0,e=r.vertexNormals.length;t<e;t++)r.__originalVertexNormals[t]?r.__originalVertexNormals[t].copy(r.vertexNormals[t]):r.__originalVertexNormals[t]=r.vertexNormals[t].clone();var o=new dt;for(o.faces=this.faces,t=0,e=this.morphTargets.length;t<e;t++){if(!this.morphNormals[t]){this.morphNormals[t]={},this.morphNormals[t].faceNormals=[],this.morphNormals[t].vertexNormals=[];var s,c,h=this.morphNormals[t].faceNormals,l=this.morphNormals[t].vertexNormals;for(i=0,n=this.faces.length;i<n;i++)s=new a,c={a:new a,b:new a,c:new a},h.push(s),l.push(c)}var u=this.morphNormals[t];o.vertices=this.morphTargets[t].vertices,o.computeFaceNormals(),o.computeVertexNormals();var s,c;for(i=0,n=this.faces.length;i<n;i++)r=this.faces[i],s=u.faceNormals[i],c=u.vertexNormals[i],s.copy(r.normal),c.a.copy(r.vertexNormals[0]),c.b.copy(r.vertexNormals[1]),c.c.copy(r.vertexNormals[2])}for(i=0,n=this.faces.length;i<n;i++)r=this.faces[i],r.normal=r.__originalFaceNormal,r.vertexNormals=r.__originalVertexNormals},computeLineDistances:function(){for(var t=0,e=this.vertices,i=0,n=e.length;i<n;i++)i>0&&(t+=e[i].distanceTo(e[i-1])),this.lineDistances[i]=t},computeBoundingBox:function(){null===this.boundingBox&&(this.boundingBox=new et),this.boundingBox.setFromPoints(this.vertices)},computeBoundingSphere:function(){null===this.boundingSphere&&(this.boundingSphere=new it),this.boundingSphere.setFromPoints(this.vertices)},merge:function(t,e,i){if(!t||!t.isGeometry)return void console.error(\"THREE.Geometry.merge(): geometry not an instance of THREE.Geometry.\",t);var n,r=this.vertices.length,a=this.vertices,s=t.vertices,c=this.faces,h=t.faces,l=this.faceVertexUvs[0],u=t.faceVertexUvs[0],p=this.colors,d=t.colors;void 0===i&&(i=0),void 0!==e&&(n=(new o).getNormalMatrix(e));for(var f=0,m=s.length;f<m;f++){var g=s[f],v=g.clone();void 0!==e&&v.applyMatrix4(e),a.push(v)}for(var f=0,m=d.length;f<m;f++)p.push(d[f].clone());for(f=0,m=h.length;f<m;f++){var y,x,b,_=h[f],w=_.vertexNormals,M=_.vertexColors;y=new pt(_.a+r,_.b+r,_.c+r),y.normal.copy(_.normal),void 0!==n&&y.normal.applyMatrix3(n).normalize();for(var E=0,T=w.length;E<T;E++)x=w[E].clone(),void 0!==n&&x.applyMatrix3(n).normalize(),y.vertexNormals.push(x);y.color.copy(_.color);for(var E=0,T=M.length;E<T;E++)b=M[E],y.vertexColors.push(b.clone());y.materialIndex=_.materialIndex+i,c.push(y)}for(f=0,m=u.length;f<m;f++){var S=u[f],A=[];if(void 0!==S){for(var E=0,T=S.length;E<T;E++)A.push(S[E].clone());l.push(A)}}},mergeMesh:function(t){if(!t||!t.isMesh)return void console.error(\"THREE.Geometry.mergeMesh(): mesh not an instance of THREE.Mesh.\",t);t.matrixAutoUpdate&&t.updateMatrix(),this.merge(t.geometry,t.matrix)},mergeVertices:function(){var t,e,i,n,r,a,o,s,c={},h=[],l=[],u=Math.pow(10,4);for(i=0,n=this.vertices.length;i<n;i++)t=this.vertices[i],e=Math.round(t.x*u)+\"_\"+Math.round(t.y*u)+\"_\"+Math.round(t.z*u),void 0===c[e]?(c[e]=i,h.push(this.vertices[i]),l[i]=h.length-1):l[i]=l[c[e]];var p=[];for(i=0,n=this.faces.length;i<n;i++){r=this.faces[i],r.a=l[r.a],r.b=l[r.b],r.c=l[r.c],a=[r.a,r.b,r.c];for(var d=0;d<3;d++)if(a[d]===a[(d+1)%3]){p.push(i);break}}for(i=p.length-1;i>=0;i--){var f=p[i];for(this.faces.splice(f,1),o=0,s=this.faceVertexUvs.length;o<s;o++)this.faceVertexUvs[o].splice(f,1)}var m=this.vertices.length-h.length;return this.vertices=h,m},setFromPoints:function(t){this.vertices=[];for(var e=0,i=t.length;e<i;e++){var n=t[e];this.vertices.push(new a(n.x,n.y,n.z||0))}return this},sortFacesByMaterialIndex:function(){function t(t,e){return t.materialIndex-e.materialIndex}for(var e=this.faces,i=e.length,n=0;n<i;n++)e[n]._id=n;e.sort(t);var r,a,o=this.faceVertexUvs[0],s=this.faceVertexUvs[1];o&&o.length===i&&(r=[]),s&&s.length===i&&(a=[]);for(var n=0;n<i;n++){var c=e[n]._id;r&&r.push(o[c]),a&&a.push(s[c])}r&&(this.faceVertexUvs[0]=r),a&&(this.faceVertexUvs[1]=a)},toJSON:function(){function t(t,e,i){return i?t|1<<e:t&~(1<<e)}function e(t){var e=t.x.toString()+t.y.toString()+t.z.toString();return void 0!==p[e]?p[e]:(p[e]=u.length/3,u.push(t.x,t.y,t.z),p[e])}function i(t){var e=t.r.toString()+t.g.toString()+t.b.toString();return void 0!==f[e]?f[e]:(f[e]=d.length,d.push(t.getHex()),f[e])}function n(t){var e=t.x.toString()+t.y.toString();return void 0!==g[e]?g[e]:(g[e]=m.length/2,m.push(t.x,t.y),g[e])}var r={metadata:{version:4.5,type:\"Geometry\",generator:\"Geometry.toJSON\"}};if(r.uuid=this.uuid,r.type=this.type,\"\"!==this.name&&(r.name=this.name),void 0!==this.parameters){var a=this.parameters;for(var o in a)void 0!==a[o]&&(r[o]=a[o]);return r}for(var s=[],c=0;c<this.vertices.length;c++){var h=this.vertices[c];s.push(h.x,h.y,h.z)}for(var l=[],u=[],p={},d=[],f={},m=[],g={},c=0;c<this.faces.length;c++){var v=this.faces[c],y=void 0!==this.faceVertexUvs[0][c],x=v.normal.length()>0,b=v.vertexNormals.length>0,_=1!==v.color.r||1!==v.color.g||1!==v.color.b,w=v.vertexColors.length>0,M=0;if(M=t(M,0,0),M=t(M,1,!0),M=t(M,2,!1),M=t(M,3,y),M=t(M,4,x),M=t(M,5,b),M=t(M,6,_),M=t(M,7,w),l.push(M),l.push(v.a,v.b,v.c),l.push(v.materialIndex),y){var E=this.faceVertexUvs[0][c];l.push(n(E[0]),n(E[1]),n(E[2]))}if(x&&l.push(e(v.normal)),b){var T=v.vertexNormals;l.push(e(T[0]),e(T[1]),e(T[2]))}if(_&&l.push(i(v.color)),w){var S=v.vertexColors;l.push(i(S[0]),i(S[1]),i(S[2]))}}return r.data={},r.data.vertices=s,r.data.normals=u,d.length>0&&(r.data.colors=d),m.length>0&&(r.data.uvs=[m]),r.data.faces=l,r},clone:function(){return(new dt).copy(this)},copy:function(t){var e,i,n,r,a,o;this.vertices=[],this.colors=[],this.faces=[],this.faceVertexUvs=[[]],this.morphTargets=[],this.morphNormals=[],this.skinWeights=[],this.skinIndices=[],this.lineDistances=[],this.boundingBox=null,this.boundingSphere=null,this.name=t.name;var s=t.vertices;for(e=0,i=s.length;e<i;e++)this.vertices.push(s[e].clone());var c=t.colors;for(e=0,i=c.length;e<i;e++)this.colors.push(c[e].clone());var h=t.faces;for(e=0,i=h.length;e<i;e++)this.faces.push(h[e].clone());for(e=0,i=t.faceVertexUvs.length;e<i;e++){var l=t.faceVertexUvs[e];for(void 0===this.faceVertexUvs[e]&&(this.faceVertexUvs[e]=[]),n=0,r=l.length;n<r;n++){var u=l[n],p=[];for(a=0,o=u.length;a<o;a++){var d=u[a];p.push(d.clone())}this.faceVertexUvs[e].push(p)}}var f=t.morphTargets;for(e=0,i=f.length;e<i;e++){var m={};if(m.name=f[e].name,void 0!==f[e].vertices)for(m.vertices=[],n=0,r=f[e].vertices.length;n<r;n++)m.vertices.push(f[e].vertices[n].clone());if(void 0!==f[e].normals)for(m.normals=[],n=0,r=f[e].normals.length;n<r;n++)m.normals.push(f[e].normals[n].clone());this.morphTargets.push(m)}var g=t.morphNormals;for(e=0,i=g.length;e<i;e++){var v={};if(void 0!==g[e].vertexNormals)for(v.vertexNormals=[],n=0,r=g[e].vertexNormals.length;n<r;n++){var y=g[e].vertexNormals[n],x={};x.a=y.a.clone(),x.b=y.b.clone(),x.c=y.c.clone(),v.vertexNormals.push(x)}if(void 0!==g[e].faceNormals)for(v.faceNormals=[],n=0,r=g[e].faceNormals.length;n<r;n++)v.faceNormals.push(g[e].faceNormals[n].clone());this.morphNormals.push(v)}var b=t.skinWeights;for(e=0,i=b.length;e<i;e++)this.skinWeights.push(b[e].clone());var _=t.skinIndices;for(e=0,i=_.length;e<i;e++)this.skinIndices.push(_[e].clone());var w=t.lineDistances;for(e=0,i=w.length;e<i;e++)this.lineDistances.push(w[e]);var M=t.boundingBox;null!==M&&(this.boundingBox=M.clone());var E=t.boundingSphere;return null!==E&&(this.boundingSphere=E.clone()),this.elementsNeedUpdate=t.elementsNeedUpdate,this.verticesNeedUpdate=t.verticesNeedUpdate,this.uvsNeedUpdate=t.uvsNeedUpdate,this.normalsNeedUpdate=t.normalsNeedUpdate,this.colorsNeedUpdate=t.colorsNeedUpdate,this.lineDistancesNeedUpdate=t.lineDistancesNeedUpdate,this.groupsNeedUpdate=t.groupsNeedUpdate,this},dispose:function(){this.dispatchEvent({type:\"dispose\"})}}),Object.defineProperty(ft.prototype,\"needsUpdate\",{set:function(t){!0===t&&this.version++}}),Object.assign(ft.prototype,{isBufferAttribute:!0,setArray:function(t){if(Array.isArray(t))throw new TypeError(\"THREE.BufferAttribute: array should be a Typed Array.\");this.count=void 0!==t?t.length/this.itemSize:0,this.array=t},setDynamic:function(t){return this.dynamic=t,this},copy:function(t){return this.array=new t.array.constructor(t.array),this.itemSize=t.itemSize,this.count=t.count,this.normalized=t.normalized,this.dynamic=t.dynamic,this},copyAt:function(t,e,i){t*=this.itemSize,i*=e.itemSize;for(var n=0,r=this.itemSize;n<r;n++)this.array[t+n]=e.array[i+n];return this},copyArray:function(t){return this.array.set(t),this},copyColorsArray:function(t){for(var e=this.array,i=0,n=0,r=t.length;n<r;n++){var a=t[n];void 0===a&&(console.warn(\"THREE.BufferAttribute.copyColorsArray(): color is undefined\",n),a=new q),e[i++]=a.r,e[i++]=a.g,e[i++]=a.b}return this},copyIndicesArray:function(t){for(var e=this.array,i=0,n=0,r=t.length;n<r;n++){var a=t[n];e[i++]=a.a,e[i++]=a.b,e[i++]=a.c}return this},copyVector2sArray:function(t){for(var e=this.array,n=0,r=0,a=t.length;r<a;r++){var o=t[r];void 0===o&&(console.warn(\"THREE.BufferAttribute.copyVector2sArray(): vector is undefined\",r),o=new i),e[n++]=o.x,e[n++]=o.y}return this},copyVector3sArray:function(t){for(var e=this.array,i=0,n=0,r=t.length;n<r;n++){var o=t[n];void 0===o&&(console.warn(\"THREE.BufferAttribute.copyVector3sArray(): vector is undefined\",n),o=new a),e[i++]=o.x,e[i++]=o.y,e[i++]=o.z}return this},copyVector4sArray:function(t){for(var e=this.array,i=0,n=0,r=t.length;n<r;n++){var a=t[n];void 0===a&&(console.warn(\"THREE.BufferAttribute.copyVector4sArray(): vector is undefined\",n),a=new c),e[i++]=a.x,e[i++]=a.y,e[i++]=a.z,e[i++]=a.w}return this},set:function(t,e){return void 0===e&&(e=0),this.array.set(t,e),this},getX:function(t){return this.array[t*this.itemSize]},setX:function(t,e){return this.array[t*this.itemSize]=e,this},getY:function(t){return this.array[t*this.itemSize+1]},setY:function(t,e){return this.array[t*this.itemSize+1]=e,this},getZ:function(t){return this.array[t*this.itemSize+2]},setZ:function(t,e){return this.array[t*this.itemSize+2]=e,this},getW:function(t){return this.array[t*this.itemSize+3]},setW:function(t,e){return this.array[t*this.itemSize+3]=e,this},setXY:function(t,e,i){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=i,this},setXYZ:function(t,e,i,n){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=i,this.array[t+2]=n,this},setXYZW:function(t,e,i,n,r){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=i,this.array[t+2]=n,this.array[t+3]=r,this},onUpload:function(t){return this.onUploadCallback=t,this},clone:function(){return new this.constructor(this.array,this.itemSize).copy(this)}}),mt.prototype=Object.create(ft.prototype),mt.prototype.constructor=mt,gt.prototype=Object.create(ft.prototype),gt.prototype.constructor=gt,vt.prototype=Object.create(ft.prototype),vt.prototype.constructor=vt,yt.prototype=Object.create(ft.prototype),yt.prototype.constructor=yt,xt.prototype=Object.create(ft.prototype),xt.prototype.constructor=xt,bt.prototype=Object.create(ft.prototype),bt.prototype.constructor=bt,_t.prototype=Object.create(ft.prototype),_t.prototype.constructor=_t,wt.prototype=Object.create(ft.prototype),wt.prototype.constructor=wt,Mt.prototype=Object.create(ft.prototype),Mt.prototype.constructor=Mt,Object.assign(Et.prototype,{computeGroups:function(t){for(var e,i=[],n=void 0,r=t.faces,a=0;a<r.length;a++){var o=r[a];o.materialIndex!==n&&(n=o.materialIndex,void 0!==e&&(e.count=3*a-e.start,i.push(e)),e={start:3*a,materialIndex:n})}void 0!==e&&(e.count=3*a-e.start,i.push(e)),this.groups=i},fromGeometry:function(t){var e,n=t.faces,r=t.vertices,a=t.faceVertexUvs,o=a[0]&&a[0].length>0,s=a[1]&&a[1].length>0,c=t.morphTargets,h=c.length;if(h>0){e=[];for(var l=0;l<h;l++)e[l]=[];this.morphTargets.position=e}var u,p=t.morphNormals,d=p.length;if(d>0){u=[];for(var l=0;l<d;l++)u[l]=[];this.morphTargets.normal=u}for(var f=t.skinIndices,m=t.skinWeights,g=f.length===r.length,v=m.length===r.length,l=0;l<n.length;l++){var y=n[l];this.vertices.push(r[y.a],r[y.b],r[y.c]);var x=y.vertexNormals;if(3===x.length)this.normals.push(x[0],x[1],x[2]);else{var b=y.normal;this.normals.push(b,b,b)}var _=y.vertexColors;if(3===_.length)this.colors.push(_[0],_[1],_[2]);else{var w=y.color;this.colors.push(w,w,w)}if(!0===o){var M=a[0][l];void 0!==M?this.uvs.push(M[0],M[1],M[2]):(console.warn(\"THREE.DirectGeometry.fromGeometry(): Undefined vertexUv \",l),this.uvs.push(new i,new i,new i))}if(!0===s){var M=a[1][l];void 0!==M?this.uvs2.push(M[0],M[1],M[2]):(console.warn(\"THREE.DirectGeometry.fromGeometry(): Undefined vertexUv2 \",l),this.uvs2.push(new i,new i,new i))}for(var E=0;E<h;E++){var T=c[E].vertices;e[E].push(T[y.a],T[y.b],T[y.c])}for(var E=0;E<d;E++){var S=p[E].vertexNormals[l];u[E].push(S.a,S.b,S.c)}g&&this.skinIndices.push(f[y.a],f[y.b],f[y.c]),v&&this.skinWeights.push(m[y.a],m[y.b],m[y.c])}return this.computeGroups(t),this.verticesNeedUpdate=t.verticesNeedUpdate,this.normalsNeedUpdate=t.normalsNeedUpdate,this.colorsNeedUpdate=t.colorsNeedUpdate,this.uvsNeedUpdate=t.uvsNeedUpdate,this.groupsNeedUpdate=t.groupsNeedUpdate,this}});var Is=1;Object.assign(St.prototype,e.prototype,{isBufferGeometry:!0,getIndex:function(){return this.index},setIndex:function(t){Array.isArray(t)?this.index=new(Tt(t)>65535?_t:xt)(t,1):this.index=t},addAttribute:function(t,e){return e&&e.isBufferAttribute||e&&e.isInterleavedBufferAttribute?\"index\"===t?(console.warn(\"THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute.\"),void this.setIndex(e)):(this.attributes[t]=e,this):(console.warn(\"THREE.BufferGeometry: .addAttribute() now expects ( name, attribute ).\"),void this.addAttribute(t,new ft(arguments[1],arguments[2])))},getAttribute:function(t){return this.attributes[t]},removeAttribute:function(t){return delete this.attributes[t],this},addGroup:function(t,e,i){this.groups.push({start:t,count:e,materialIndex:void 0!==i?i:0})},clearGroups:function(){this.groups=[]},setDrawRange:function(t,e){this.drawRange.start=t,this.drawRange.count=e},applyMatrix:function(t){var e=this.attributes.position;void 0!==e&&(t.applyToBufferAttribute(e),e.needsUpdate=!0);var i=this.attributes.normal;if(void 0!==i){(new o).getNormalMatrix(t).applyToBufferAttribute(i),i.needsUpdate=!0}return null!==this.boundingBox&&this.computeBoundingBox(),null!==this.boundingSphere&&this.computeBoundingSphere(),this},rotateX:function(){var t=new n;return function(e){return t.makeRotationX(e),this.applyMatrix(t),this}}(),rotateY:function(){var t=new n;return function(e){return t.makeRotationY(e),this.applyMatrix(t),this}}(),rotateZ:function(){var t=new n;return function(e){return t.makeRotationZ(e),this.applyMatrix(t),this}}(),translate:function(){var t=new n;return function(e,i,n){return t.makeTranslation(e,i,n),this.applyMatrix(t),this}}(),scale:function(){var t=new n;return function(e,i,n){return t.makeScale(e,i,n),this.applyMatrix(t),this}}(),lookAt:function(){var t=new ht;return function(e){t.lookAt(e),t.updateMatrix(),this.applyMatrix(t.matrix)}}(),center:function(){this.computeBoundingBox();var t=this.boundingBox.getCenter().negate();return this.translate(t.x,t.y,t.z),t},setFromObject:function(t){var e=t.geometry;if(t.isPoints||t.isLine){var i=new wt(3*e.vertices.length,3),n=new wt(3*e.colors.length,3);if(this.addAttribute(\"position\",i.copyVector3sArray(e.vertices)),this.addAttribute(\"color\",n.copyColorsArray(e.colors)),e.lineDistances&&e.lineDistances.length===e.vertices.length){var r=new wt(e.lineDistances.length,1);this.addAttribute(\"lineDistance\",r.copyArray(e.lineDistances))}null!==e.boundingSphere&&(this.boundingSphere=e.boundingSphere.clone()),null!==e.boundingBox&&(this.boundingBox=e.boundingBox.clone())}else t.isMesh&&e&&e.isGeometry&&this.fromGeometry(e);return this},setFromPoints:function(t){for(var e=[],i=0,n=t.length;i<n;i++){var r=t[i];e.push(r.x,r.y,r.z||0)}return this.addAttribute(\"position\",new wt(e,3)),this},updateFromObject:function(t){var e=t.geometry;if(t.isMesh){var i=e.__directGeometry;if(!0===e.elementsNeedUpdate&&(i=void 0,e.elementsNeedUpdate=!1),void 0===i)return this.fromGeometry(e);i.verticesNeedUpdate=e.verticesNeedUpdate,i.normalsNeedUpdate=e.normalsNeedUpdate,i.colorsNeedUpdate=e.colorsNeedUpdate,i.uvsNeedUpdate=e.uvsNeedUpdate,i.groupsNeedUpdate=e.groupsNeedUpdate,e.verticesNeedUpdate=!1,e.normalsNeedUpdate=!1,e.colorsNeedUpdate=!1,e.uvsNeedUpdate=!1,e.groupsNeedUpdate=!1,e=i}var n;return!0===e.verticesNeedUpdate&&(n=this.attributes.position,void 0!==n&&(n.copyVector3sArray(e.vertices),n.needsUpdate=!0),e.verticesNeedUpdate=!1),!0===e.normalsNeedUpdate&&(n=this.attributes.normal,void 0!==n&&(n.copyVector3sArray(e.normals),n.needsUpdate=!0),e.normalsNeedUpdate=!1),!0===e.colorsNeedUpdate&&(n=this.attributes.color,void 0!==n&&(n.copyColorsArray(e.colors),n.needsUpdate=!0),e.colorsNeedUpdate=!1),e.uvsNeedUpdate&&(n=this.attributes.uv,void 0!==n&&(n.copyVector2sArray(e.uvs),n.needsUpdate=!0),e.uvsNeedUpdate=!1),e.lineDistancesNeedUpdate&&(n=this.attributes.lineDistance,void 0!==n&&(n.copyArray(e.lineDistances),n.needsUpdate=!0),e.lineDistancesNeedUpdate=!1),e.groupsNeedUpdate&&(e.computeGroups(t.geometry),this.groups=e.groups,e.groupsNeedUpdate=!1),this},fromGeometry:function(t){return t.__directGeometry=(new Et).fromGeometry(t),this.fromDirectGeometry(t.__directGeometry)},fromDirectGeometry:function(t){var e=new Float32Array(3*t.vertices.length);if(this.addAttribute(\"position\",new ft(e,3).copyVector3sArray(t.vertices)),t.normals.length>0){var i=new Float32Array(3*t.normals.length);this.addAttribute(\"normal\",new ft(i,3).copyVector3sArray(t.normals))}if(t.colors.length>0){var n=new Float32Array(3*t.colors.length);this.addAttribute(\"color\",new ft(n,3).copyColorsArray(t.colors))}if(t.uvs.length>0){var r=new Float32Array(2*t.uvs.length);this.addAttribute(\"uv\",new ft(r,2).copyVector2sArray(t.uvs))}if(t.uvs2.length>0){var a=new Float32Array(2*t.uvs2.length);this.addAttribute(\"uv2\",new ft(a,2).copyVector2sArray(t.uvs2))}if(t.indices.length>0){var o=Tt(t.indices)>65535?Uint32Array:Uint16Array,s=new o(3*t.indices.length);this.setIndex(new ft(s,1).copyIndicesArray(t.indices))}this.groups=t.groups;for(var c in t.morphTargets){for(var h=[],l=t.morphTargets[c],u=0,p=l.length;u<p;u++){var d=l[u],f=new wt(3*d.length,3);h.push(f.copyVector3sArray(d))}this.morphAttributes[c]=h}if(t.skinIndices.length>0){var m=new wt(4*t.skinIndices.length,4);this.addAttribute(\"skinIndex\",m.copyVector4sArray(t.skinIndices))}if(t.skinWeights.length>0){var g=new wt(4*t.skinWeights.length,4);this.addAttribute(\"skinWeight\",g.copyVector4sArray(t.skinWeights))}return null!==t.boundingSphere&&(this.boundingSphere=t.boundingSphere.clone()),null!==t.boundingBox&&(this.boundingBox=t.boundingBox.clone()),this},computeBoundingBox:function(){null===this.boundingBox&&(this.boundingBox=new et);var t=this.attributes.position;void 0!==t?this.boundingBox.setFromBufferAttribute(t):this.boundingBox.makeEmpty(),(isNaN(this.boundingBox.min.x)||isNaN(this.boundingBox.min.y)||isNaN(this.boundingBox.min.z))&&console.error('THREE.BufferGeometry.computeBoundingBox: Computed min/max have NaN values. The \"position\" attribute is likely to have NaN values.',this)},computeBoundingSphere:function(){var t=new et,e=new a;return function(){null===this.boundingSphere&&(this.boundingSphere=new it);var i=this.attributes.position\n;if(i){var n=this.boundingSphere.center;t.setFromBufferAttribute(i),t.getCenter(n);for(var r=0,a=0,o=i.count;a<o;a++)e.x=i.getX(a),e.y=i.getY(a),e.z=i.getZ(a),r=Math.max(r,n.distanceToSquared(e));this.boundingSphere.radius=Math.sqrt(r),isNaN(this.boundingSphere.radius)&&console.error('THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The \"position\" attribute is likely to have NaN values.',this)}}}(),computeFaceNormals:function(){},computeVertexNormals:function(){var t=this.index,e=this.attributes,i=this.groups;if(e.position){var n=e.position.array;if(void 0===e.normal)this.addAttribute(\"normal\",new ft(new Float32Array(n.length),3));else for(var r=e.normal.array,o=0,s=r.length;o<s;o++)r[o]=0;var c,h,l,u=e.normal.array,p=new a,d=new a,f=new a,m=new a,g=new a;if(t){var v=t.array;0===i.length&&this.addGroup(0,v.length);for(var y=0,x=i.length;y<x;++y)for(var b=i[y],_=b.start,w=b.count,o=_,s=_+w;o<s;o+=3)c=3*v[o+0],h=3*v[o+1],l=3*v[o+2],p.fromArray(n,c),d.fromArray(n,h),f.fromArray(n,l),m.subVectors(f,d),g.subVectors(p,d),m.cross(g),u[c]+=m.x,u[c+1]+=m.y,u[c+2]+=m.z,u[h]+=m.x,u[h+1]+=m.y,u[h+2]+=m.z,u[l]+=m.x,u[l+1]+=m.y,u[l+2]+=m.z}else for(var o=0,s=n.length;o<s;o+=9)p.fromArray(n,o),d.fromArray(n,o+3),f.fromArray(n,o+6),m.subVectors(f,d),g.subVectors(p,d),m.cross(g),u[o]=m.x,u[o+1]=m.y,u[o+2]=m.z,u[o+3]=m.x,u[o+4]=m.y,u[o+5]=m.z,u[o+6]=m.x,u[o+7]=m.y,u[o+8]=m.z;this.normalizeNormals(),e.normal.needsUpdate=!0}},merge:function(t,e){if(!t||!t.isBufferGeometry)return void console.error(\"THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.\",t);void 0===e&&(e=0);var i=this.attributes;for(var n in i)if(void 0!==t.attributes[n])for(var r=i[n],a=r.array,o=t.attributes[n],s=o.array,c=o.itemSize,h=0,l=c*e;h<s.length;h++,l++)a[l]=s[h];return this},normalizeNormals:function(){var t=new a;return function(){for(var e=this.attributes.normal,i=0,n=e.count;i<n;i++)t.x=e.getX(i),t.y=e.getY(i),t.z=e.getZ(i),t.normalize(),e.setXYZ(i,t.x,t.y,t.z)}}(),toNonIndexed:function(){if(null===this.index)return console.warn(\"THREE.BufferGeometry.toNonIndexed(): Geometry is already non-indexed.\"),this;var t=new St,e=this.index.array,i=this.attributes;for(var n in i){for(var r=i[n],a=r.array,o=r.itemSize,s=new a.constructor(e.length*o),c=0,h=0,l=0,u=e.length;l<u;l++){c=e[l]*o;for(var p=0;p<o;p++)s[h++]=a[c++]}t.addAttribute(n,new ft(s,o))}return t},toJSON:function(){var t={metadata:{version:4.5,type:\"BufferGeometry\",generator:\"BufferGeometry.toJSON\"}};if(t.uuid=this.uuid,t.type=this.type,\"\"!==this.name&&(t.name=this.name),void 0!==this.parameters){var e=this.parameters;for(var i in e)void 0!==e[i]&&(t[i]=e[i]);return t}t.data={attributes:{}};var n=this.index;if(null!==n){var r=Array.prototype.slice.call(n.array);t.data.index={type:n.array.constructor.name,array:r}}var a=this.attributes;for(var i in a){var o=a[i],r=Array.prototype.slice.call(o.array);t.data.attributes[i]={itemSize:o.itemSize,type:o.array.constructor.name,array:r,normalized:o.normalized}}var s=this.groups;s.length>0&&(t.data.groups=JSON.parse(JSON.stringify(s)));var c=this.boundingSphere;return null!==c&&(t.data.boundingSphere={center:c.center.toArray(),radius:c.radius}),t},clone:function(){return(new St).copy(this)},copy:function(t){var e,i,n;this.index=null,this.attributes={},this.morphAttributes={},this.groups=[],this.boundingBox=null,this.boundingSphere=null,this.name=t.name;var r=t.index;null!==r&&this.setIndex(r.clone());var a=t.attributes;for(e in a){var o=a[e];this.addAttribute(e,o.clone())}var s=t.morphAttributes;for(e in s){var c=[],h=s[e];for(i=0,n=h.length;i<n;i++)c.push(h[i].clone());this.morphAttributes[e]=c}var l=t.groups;for(i=0,n=l.length;i<n;i++){var u=l[i];this.addGroup(u.start,u.count,u.materialIndex)}var p=t.boundingBox;null!==p&&(this.boundingBox=p.clone());var d=t.boundingSphere;return null!==d&&(this.boundingSphere=d.clone()),this.drawRange.start=t.drawRange.start,this.drawRange.count=t.drawRange.count,this},dispose:function(){this.dispatchEvent({type:\"dispose\"})}}),At.prototype=Object.create(dt.prototype),At.prototype.constructor=At,Rt.prototype=Object.create(St.prototype),Rt.prototype.constructor=Rt,Lt.prototype=Object.create(dt.prototype),Lt.prototype.constructor=Lt,Pt.prototype=Object.create(St.prototype),Pt.prototype.constructor=Pt,Ct.prototype=Object.create(K.prototype),Ct.prototype.constructor=Ct,Ct.prototype.isMeshBasicMaterial=!0,Ct.prototype.copy=function(t){return K.prototype.copy.call(this,t),this.color.copy(t.color),this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this},It.prototype=Object.create(K.prototype),It.prototype.constructor=It,It.prototype.isShaderMaterial=!0,It.prototype.copy=function(t){return K.prototype.copy.call(this,t),this.fragmentShader=t.fragmentShader,this.vertexShader=t.vertexShader,this.uniforms=Ss.clone(t.uniforms),this.defines=t.defines,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.lights=t.lights,this.clipping=t.clipping,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.extensions=t.extensions,this},It.prototype.toJSON=function(t){var e=K.prototype.toJSON.call(this,t);return e.uniforms=this.uniforms,e.vertexShader=this.vertexShader,e.fragmentShader=this.fragmentShader,e},Object.assign(Ut.prototype,{set:function(t,e){return this.origin.copy(t),this.direction.copy(e),this},clone:function(){return(new this.constructor).copy(this)},copy:function(t){return this.origin.copy(t.origin),this.direction.copy(t.direction),this},at:function(t,e){return(e||new a).copy(this.direction).multiplyScalar(t).add(this.origin)},lookAt:function(t){return this.direction.copy(t).sub(this.origin).normalize(),this},recast:function(){var t=new a;return function(e){return this.origin.copy(this.at(e,t)),this}}(),closestPointToPoint:function(t,e){var i=e||new a;i.subVectors(t,this.origin);var n=i.dot(this.direction);return n<0?i.copy(this.origin):i.copy(this.direction).multiplyScalar(n).add(this.origin)},distanceToPoint:function(t){return Math.sqrt(this.distanceSqToPoint(t))},distanceSqToPoint:function(){var t=new a;return function(e){var i=t.subVectors(e,this.origin).dot(this.direction);return i<0?this.origin.distanceToSquared(e):(t.copy(this.direction).multiplyScalar(i).add(this.origin),t.distanceToSquared(e))}}(),distanceSqToSegment:function(){var t=new a,e=new a,i=new a;return function(n,r,a,o){t.copy(n).add(r).multiplyScalar(.5),e.copy(r).sub(n).normalize(),i.copy(this.origin).sub(t);var s,c,h,l,u=.5*n.distanceTo(r),p=-this.direction.dot(e),d=i.dot(this.direction),f=-i.dot(e),m=i.lengthSq(),g=Math.abs(1-p*p);if(g>0)if(s=p*f-d,c=p*d-f,l=u*g,s>=0)if(c>=-l)if(c<=l){var v=1/g;s*=v,c*=v,h=s*(s+p*c+2*d)+c*(p*s+c+2*f)+m}else c=u,s=Math.max(0,-(p*c+d)),h=-s*s+c*(c+2*f)+m;else c=-u,s=Math.max(0,-(p*c+d)),h=-s*s+c*(c+2*f)+m;else c<=-l?(s=Math.max(0,-(-p*u+d)),c=s>0?-u:Math.min(Math.max(-u,-f),u),h=-s*s+c*(c+2*f)+m):c<=l?(s=0,c=Math.min(Math.max(-u,-f),u),h=c*(c+2*f)+m):(s=Math.max(0,-(p*u+d)),c=s>0?u:Math.min(Math.max(-u,-f),u),h=-s*s+c*(c+2*f)+m);else c=p>0?-u:u,s=Math.max(0,-(p*c+d)),h=-s*s+c*(c+2*f)+m;return a&&a.copy(this.direction).multiplyScalar(s).add(this.origin),o&&o.copy(e).multiplyScalar(c).add(t),h}}(),intersectSphere:function(){var t=new a;return function(e,i){t.subVectors(e.center,this.origin);var n=t.dot(this.direction),r=t.dot(t)-n*n,a=e.radius*e.radius;if(r>a)return null;var o=Math.sqrt(a-r),s=n-o,c=n+o;return s<0&&c<0?null:s<0?this.at(c,i):this.at(s,i)}}(),intersectsSphere:function(t){return this.distanceToPoint(t.center)<=t.radius},distanceToPlane:function(t){var e=t.normal.dot(this.direction);if(0===e)return 0===t.distanceToPoint(this.origin)?0:null;var i=-(this.origin.dot(t.normal)+t.constant)/e;return i>=0?i:null},intersectPlane:function(t,e){var i=this.distanceToPlane(t);return null===i?null:this.at(i,e)},intersectsPlane:function(t){var e=t.distanceToPoint(this.origin);return 0===e||t.normal.dot(this.direction)*e<0},intersectBox:function(t,e){var i,n,r,a,o,s,c=1/this.direction.x,h=1/this.direction.y,l=1/this.direction.z,u=this.origin;return c>=0?(i=(t.min.x-u.x)*c,n=(t.max.x-u.x)*c):(i=(t.max.x-u.x)*c,n=(t.min.x-u.x)*c),h>=0?(r=(t.min.y-u.y)*h,a=(t.max.y-u.y)*h):(r=(t.max.y-u.y)*h,a=(t.min.y-u.y)*h),i>a||r>n?null:((r>i||i!==i)&&(i=r),(a<n||n!==n)&&(n=a),l>=0?(o=(t.min.z-u.z)*l,s=(t.max.z-u.z)*l):(o=(t.max.z-u.z)*l,s=(t.min.z-u.z)*l),i>s||o>n?null:((o>i||i!==i)&&(i=o),(s<n||n!==n)&&(n=s),n<0?null:this.at(i>=0?i:n,e)))},intersectsBox:function(){var t=new a;return function(e){return null!==this.intersectBox(e,t)}}(),intersectTriangle:function(){var t=new a,e=new a,i=new a,n=new a;return function(r,a,o,s,c){e.subVectors(a,r),i.subVectors(o,r),n.crossVectors(e,i);var h,l=this.direction.dot(n);if(l>0){if(s)return null;h=1}else{if(!(l<0))return null;h=-1,l=-l}t.subVectors(this.origin,r);var u=h*this.direction.dot(i.crossVectors(t,i));if(u<0)return null;var p=h*this.direction.dot(e.cross(t));if(p<0)return null;if(u+p>l)return null;var d=-h*t.dot(n);return d<0?null:this.at(d/l,c)}}(),applyMatrix4:function(t){return this.origin.applyMatrix4(t),this.direction.transformDirection(t),this},equals:function(t){return t.origin.equals(this.origin)&&t.direction.equals(this.direction)}}),Object.assign(Dt.prototype,{set:function(t,e){return this.start.copy(t),this.end.copy(e),this},clone:function(){return(new this.constructor).copy(this)},copy:function(t){return this.start.copy(t.start),this.end.copy(t.end),this},getCenter:function(t){return(t||new a).addVectors(this.start,this.end).multiplyScalar(.5)},delta:function(t){return(t||new a).subVectors(this.end,this.start)},distanceSq:function(){return this.start.distanceToSquared(this.end)},distance:function(){return this.start.distanceTo(this.end)},at:function(t,e){var i=e||new a;return this.delta(i).multiplyScalar(t).add(this.start)},closestPointToPointParameter:function(){var t=new a,e=new a;return function(i,n){t.subVectors(i,this.start),e.subVectors(this.end,this.start);var r=e.dot(e),a=e.dot(t),o=a/r;return n&&(o=ms.clamp(o,0,1)),o}}(),closestPointToPoint:function(t,e,i){var n=this.closestPointToPointParameter(t,e),r=i||new a;return this.delta(r).multiplyScalar(n).add(this.start)},applyMatrix4:function(t){return this.start.applyMatrix4(t),this.end.applyMatrix4(t),this},equals:function(t){return t.start.equals(this.start)&&t.end.equals(this.end)}}),Object.assign(Ot,{normal:function(){var t=new a;return function(e,i,n,r){var o=r||new a;o.subVectors(n,i),t.subVectors(e,i),o.cross(t);var s=o.lengthSq();return s>0?o.multiplyScalar(1/Math.sqrt(s)):o.set(0,0,0)}}(),barycoordFromPoint:function(){var t=new a,e=new a,i=new a;return function(n,r,o,s,c){t.subVectors(s,r),e.subVectors(o,r),i.subVectors(n,r);var h=t.dot(t),l=t.dot(e),u=t.dot(i),p=e.dot(e),d=e.dot(i),f=h*p-l*l,m=c||new a;if(0===f)return m.set(-2,-1,-1);var g=1/f,v=(p*u-l*d)*g,y=(h*d-l*u)*g;return m.set(1-v-y,y,v)}}(),containsPoint:function(){var t=new a;return function(e,i,n,r){var a=Ot.barycoordFromPoint(e,i,n,r,t);return a.x>=0&&a.y>=0&&a.x+a.y<=1}}()}),Object.assign(Ot.prototype,{set:function(t,e,i){return this.a.copy(t),this.b.copy(e),this.c.copy(i),this},setFromPointsAndIndices:function(t,e,i,n){return this.a.copy(t[e]),this.b.copy(t[i]),this.c.copy(t[n]),this},clone:function(){return(new this.constructor).copy(this)},copy:function(t){return this.a.copy(t.a),this.b.copy(t.b),this.c.copy(t.c),this},area:function(){var t=new a,e=new a;return function(){return t.subVectors(this.c,this.b),e.subVectors(this.a,this.b),.5*t.cross(e).length()}}(),midpoint:function(t){return(t||new a).addVectors(this.a,this.b).add(this.c).multiplyScalar(1/3)},normal:function(t){return Ot.normal(this.a,this.b,this.c,t)},plane:function(t){return(t||new nt).setFromCoplanarPoints(this.a,this.b,this.c)},barycoordFromPoint:function(t,e){return Ot.barycoordFromPoint(t,this.a,this.b,this.c,e)},containsPoint:function(t){return Ot.containsPoint(t,this.a,this.b,this.c)},closestPointToPoint:function(){var t=new nt,e=[new Dt,new Dt,new Dt],i=new a,n=new a;return function(r,o){var s=o||new a,c=1/0;if(t.setFromCoplanarPoints(this.a,this.b,this.c),t.projectPoint(r,i),!0===this.containsPoint(i))s.copy(i);else{e[0].set(this.a,this.b),e[1].set(this.b,this.c),e[2].set(this.c,this.a);for(var h=0;h<e.length;h++){e[h].closestPointToPoint(i,!0,n);var l=i.distanceToSquared(n);l<c&&(c=l,s.copy(n))}}return s}}(),equals:function(t){return t.a.equals(this.a)&&t.b.equals(this.b)&&t.c.equals(this.c)}}),Nt.prototype=Object.assign(Object.create(ht.prototype),{constructor:Nt,isMesh:!0,setDrawMode:function(t){this.drawMode=t},copy:function(t){return ht.prototype.copy.call(this,t),this.drawMode=t.drawMode,void 0!==t.morphTargetInfluences&&(this.morphTargetInfluences=t.morphTargetInfluences.slice()),void 0!==t.morphTargetDictionary&&(this.morphTargetDictionary=Object.assign({},t.morphTargetDictionary)),this},updateMorphTargets:function(){var t,e,i,n=this.geometry;if(n.isBufferGeometry){var r=n.morphAttributes,a=Object.keys(r);if(a.length>0){var o=r[a[0]];if(void 0!==o)for(this.morphTargetInfluences=[],this.morphTargetDictionary={},t=0,e=o.length;t<e;t++)i=o[t].name||String(t),this.morphTargetInfluences.push(0),this.morphTargetDictionary[i]=t}}else{var s=n.morphTargets;if(void 0!==s&&s.length>0)for(this.morphTargetInfluences=[],this.morphTargetDictionary={},t=0,e=s.length;t<e;t++)i=s[t].name||String(t),this.morphTargetInfluences.push(0),this.morphTargetDictionary[i]=t}},raycast:function(){function t(t,e,i,n,r,a,o){return Ot.barycoordFromPoint(t,e,i,n,y),r.multiplyScalar(y.x),a.multiplyScalar(y.y),o.multiplyScalar(y.z),r.add(a).add(o),r.clone()}function e(t,e,i,n,r,a,o,s){if(null===(e.side===ba?n.intersectTriangle(o,a,r,!0,s):n.intersectTriangle(r,a,o,e.side!==_a,s)))return null;b.copy(s),b.applyMatrix4(t.matrixWorld);var c=i.ray.origin.distanceTo(b);return c<i.near||c>i.far?null:{distance:c,point:b.clone(),object:t}}function r(i,n,r,a,o,s,c,p){h.fromBufferAttribute(a,s),l.fromBufferAttribute(a,c),u.fromBufferAttribute(a,p);var d=e(i,i.material,n,r,h,l,u,x);return d&&(o&&(m.fromBufferAttribute(o,s),g.fromBufferAttribute(o,c),v.fromBufferAttribute(o,p),d.uv=t(x,h,l,u,m,g,v)),d.face=new pt(s,c,p,Ot.normal(h,l,u)),d.faceIndex=s),d}var o=new n,s=new Ut,c=new it,h=new a,l=new a,u=new a,p=new a,d=new a,f=new a,m=new i,g=new i,v=new i,y=new a,x=new a,b=new a;return function(i,n){var a=this.geometry,y=this.material,b=this.matrixWorld;if(void 0!==y&&(null===a.boundingSphere&&a.computeBoundingSphere(),c.copy(a.boundingSphere),c.applyMatrix4(b),!1!==i.ray.intersectsSphere(c)&&(o.getInverse(b),s.copy(i.ray).applyMatrix4(o),null===a.boundingBox||!1!==s.intersectsBox(a.boundingBox)))){var _;if(a.isBufferGeometry){var w,M,E,T,S,A=a.index,R=a.attributes.position,L=a.attributes.uv;if(null!==A)for(T=0,S=A.count;T<S;T+=3)w=A.getX(T),M=A.getX(T+1),E=A.getX(T+2),(_=r(this,i,s,R,L,w,M,E))&&(_.faceIndex=Math.floor(T/3),n.push(_));else if(void 0!==R)for(T=0,S=R.count;T<S;T+=3)w=T,M=T+1,E=T+2,(_=r(this,i,s,R,L,w,M,E))&&(_.index=w,n.push(_))}else if(a.isGeometry){var P,C,I,U,D=Array.isArray(y),O=a.vertices,N=a.faces,F=a.faceVertexUvs[0];F.length>0&&(U=F);for(var B=0,z=N.length;B<z;B++){var G=N[B],H=D?y[G.materialIndex]:y;if(void 0!==H){if(P=O[G.a],C=O[G.b],I=O[G.c],!0===H.morphTargets){var V=a.morphTargets,k=this.morphTargetInfluences;h.set(0,0,0),l.set(0,0,0),u.set(0,0,0);for(var j=0,W=V.length;j<W;j++){var X=k[j];if(0!==X){var q=V[j].vertices;h.addScaledVector(p.subVectors(q[G.a],P),X),l.addScaledVector(d.subVectors(q[G.b],C),X),u.addScaledVector(f.subVectors(q[G.c],I),X)}}h.add(P),l.add(C),u.add(I),P=h,C=l,I=u}if(_=e(this,H,i,s,P,C,I,x)){if(U&&U[B]){var Y=U[B];m.copy(Y[0]),g.copy(Y[1]),v.copy(Y[2]),_.uv=t(x,P,C,I,m,g,v)}_.face=G,_.faceIndex=B,n.push(_)}}}}}}}(),clone:function(){return new this.constructor(this.geometry,this.material).copy(this)}});var Us=0;me.prototype=Object.assign(Object.create(lt.prototype),{constructor:me,isPerspectiveCamera:!0,copy:function(t,e){return lt.prototype.copy.call(this,t,e),this.fov=t.fov,this.zoom=t.zoom,this.near=t.near,this.far=t.far,this.focus=t.focus,this.aspect=t.aspect,this.view=null===t.view?null:Object.assign({},t.view),this.filmGauge=t.filmGauge,this.filmOffset=t.filmOffset,this},setFocalLength:function(t){var e=.5*this.getFilmHeight()/t;this.fov=2*ms.RAD2DEG*Math.atan(e),this.updateProjectionMatrix()},getFocalLength:function(){var t=Math.tan(.5*ms.DEG2RAD*this.fov);return.5*this.getFilmHeight()/t},getEffectiveFOV:function(){return 2*ms.RAD2DEG*Math.atan(Math.tan(.5*ms.DEG2RAD*this.fov)/this.zoom)},getFilmWidth:function(){return this.filmGauge*Math.min(this.aspect,1)},getFilmHeight:function(){return this.filmGauge/Math.max(this.aspect,1)},setViewOffset:function(t,e,i,n,r,a){this.aspect=t/e,null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1}),this.view.enabled=!0,this.view.fullWidth=t,this.view.fullHeight=e,this.view.offsetX=i,this.view.offsetY=n,this.view.width=r,this.view.height=a,this.updateProjectionMatrix()},clearViewOffset:function(){null!==this.view&&(this.view.enabled=!1),this.updateProjectionMatrix()},updateProjectionMatrix:function(){var t=this.near,e=t*Math.tan(.5*ms.DEG2RAD*this.fov)/this.zoom,i=2*e,n=this.aspect*i,r=-.5*n,a=this.view;if(null!==this.view&&this.view.enabled){var o=a.fullWidth,s=a.fullHeight;r+=a.offsetX*n/o,e-=a.offsetY*i/s,n*=a.width/o,i*=a.height/s}var c=this.filmOffset;0!==c&&(r+=t*c/this.getFilmWidth()),this.projectionMatrix.makePerspective(r,r+n,e,e-i,t,this.far)},toJSON:function(t){var e=ht.prototype.toJSON.call(this,t);return e.object.fov=this.fov,e.object.zoom=this.zoom,e.object.near=this.near,e.object.far=this.far,e.object.focus=this.focus,e.object.aspect=this.aspect,null!==this.view&&(e.object.view=Object.assign({},this.view)),e.object.filmGauge=this.filmGauge,e.object.filmOffset=this.filmOffset,e}}),ge.prototype=Object.assign(Object.create(me.prototype),{constructor:ge,isArrayCamera:!0}),we.prototype.isFogExp2=!0,we.prototype.clone=function(){return new we(this.color.getHex(),this.density)},we.prototype.toJSON=function(){return{type:\"FogExp2\",color:this.color.getHex(),density:this.density}},Me.prototype.isFog=!0,Me.prototype.clone=function(){return new Me(this.color.getHex(),this.near,this.far)},Me.prototype.toJSON=function(){return{type:\"Fog\",color:this.color.getHex(),near:this.near,far:this.far}},Ee.prototype=Object.assign(Object.create(ht.prototype),{constructor:Ee,copy:function(t,e){return ht.prototype.copy.call(this,t,e),null!==t.background&&(this.background=t.background.clone()),null!==t.fog&&(this.fog=t.fog.clone()),null!==t.overrideMaterial&&(this.overrideMaterial=t.overrideMaterial.clone()),this.autoUpdate=t.autoUpdate,this.matrixAutoUpdate=t.matrixAutoUpdate,this},toJSON:function(t){var e=ht.prototype.toJSON.call(this,t);return null!==this.background&&(e.object.background=this.background.toJSON(t)),null!==this.fog&&(e.object.fog=this.fog.toJSON()),e}}),Te.prototype=Object.assign(Object.create(ht.prototype),{constructor:Te,isLensFlare:!0,copy:function(t){ht.prototype.copy.call(this,t),this.positionScreen.copy(t.positionScreen),this.customUpdateCallback=t.customUpdateCallback;for(var e=0,i=t.lensFlares.length;e<i;e++)this.lensFlares.push(t.lensFlares[e]);return this},add:function(t,e,i,n,r,a){void 0===e&&(e=-1),void 0===i&&(i=0),void 0===a&&(a=1),void 0===r&&(r=new q(16777215)),void 0===n&&(n=Sa),i=Math.min(i,Math.max(0,i)),this.lensFlares.push({texture:t,size:e,distance:i,x:0,y:0,z:0,scale:1,rotation:0,opacity:a,color:r,blending:n})},updateLensFlares:function(){var t,e,i=this.lensFlares.length,n=2*-this.positionScreen.x,r=2*-this.positionScreen.y;for(t=0;t<i;t++)e=this.lensFlares[t],e.x=this.positionScreen.x+n*e.distance,e.y=this.positionScreen.y+r*e.distance,e.wantedRotation=e.x*Math.PI*.25,e.rotation+=.25*(e.wantedRotation-e.rotation)}}),Se.prototype=Object.create(K.prototype),Se.prototype.constructor=Se,Se.prototype.isSpriteMaterial=!0,Se.prototype.copy=function(t){return K.prototype.copy.call(this,t),this.color.copy(t.color),this.map=t.map,this.rotation=t.rotation,this},Ae.prototype=Object.assign(Object.create(ht.prototype),{constructor:Ae,isSprite:!0,raycast:function(){var t=new a,e=new a,i=new a;return function(n,r){e.setFromMatrixPosition(this.matrixWorld),n.ray.closestPointToPoint(e,t),i.setFromMatrixScale(this.matrixWorld);var a=i.x*i.y/4;if(!(e.distanceToSquared(t)>a)){var o=n.ray.origin.distanceTo(t);o<n.near||o>n.far||r.push({distance:o,point:t.clone(),face:null,object:this})}}}(),clone:function(){return new this.constructor(this.material).copy(this)}}),Re.prototype=Object.assign(Object.create(ht.prototype),{constructor:Re,copy:function(t){ht.prototype.copy.call(this,t,!1);for(var e=t.levels,i=0,n=e.length;i<n;i++){var r=e[i];this.addLevel(r.object.clone(),r.distance)}return this},addLevel:function(t,e){void 0===e&&(e=0),e=Math.abs(e);for(var i=this.levels,n=0;n<i.length&&!(e<i[n].distance);n++);i.splice(n,0,{distance:e,object:t}),this.add(t)},getObjectForDistance:function(t){for(var e=this.levels,i=1,n=e.length;i<n&&!(t<e[i].distance);i++);return e[i-1].object},raycast:function(){var t=new a;return function(e,i){t.setFromMatrixPosition(this.matrixWorld);var n=e.ray.origin.distanceTo(t);this.getObjectForDistance(n).raycast(e,i)}}(),update:function(){var t=new a,e=new a;return function(i){var n=this.levels;if(n.length>1){t.setFromMatrixPosition(i.matrixWorld),e.setFromMatrixPosition(this.matrixWorld);var r=t.distanceTo(e);n[0].object.visible=!0;for(var a=1,o=n.length;a<o&&r>=n[a].distance;a++)n[a-1].object.visible=!1,n[a].object.visible=!0;for(;a<o;a++)n[a].object.visible=!1}}}(),toJSON:function(t){var e=ht.prototype.toJSON.call(this,t);e.object.levels=[];for(var i=this.levels,n=0,r=i.length;n<r;n++){var a=i[n];e.object.levels.push({object:a.object.uuid,distance:a.distance})}return e}}),Object.assign(Le.prototype,{calculateInverses:function(){this.boneInverses=[];for(var t=0,e=this.bones.length;t<e;t++){var i=new n;this.bones[t]&&i.getInverse(this.bones[t].matrixWorld),this.boneInverses.push(i)}},pose:function(){var t,e,i;for(e=0,i=this.bones.length;e<i;e++)(t=this.bones[e])&&t.matrixWorld.getInverse(this.boneInverses[e]);for(e=0,i=this.bones.length;e<i;e++)(t=this.bones[e])&&(t.parent&&t.parent.isBone?(t.matrix.getInverse(t.parent.matrixWorld),t.matrix.multiply(t.matrixWorld)):t.matrix.copy(t.matrixWorld),t.matrix.decompose(t.position,t.quaternion,t.scale))},update:function(){var t=new n,e=new n;return function(){for(var i=this.bones,n=this.boneInverses,r=this.boneMatrices,a=this.boneTexture,o=0,s=i.length;o<s;o++){var c=i[o]?i[o].matrixWorld:e;t.multiplyMatrices(c,n[o]),t.toArray(r,16*o)}void 0!==a&&(a.needsUpdate=!0)}}(),clone:function(){return new Le(this.bones,this.boneInverses)}}),Pe.prototype=Object.assign(Object.create(ht.prototype),{constructor:Pe,isBone:!0}),Ce.prototype=Object.assign(Object.create(Nt.prototype),{constructor:Ce,isSkinnedMesh:!0,initBones:function(){var t,e,i,n,r=[];if(this.geometry&&void 0!==this.geometry.bones){for(i=0,n=this.geometry.bones.length;i<n;i++)e=this.geometry.bones[i],t=new Pe,r.push(t),t.name=e.name,t.position.fromArray(e.pos),t.quaternion.fromArray(e.rotq),void 0!==e.scl&&t.scale.fromArray(e.scl);for(i=0,n=this.geometry.bones.length;i<n;i++)e=this.geometry.bones[i],-1!==e.parent&&null!==e.parent&&void 0!==r[e.parent]?r[e.parent].add(r[i]):this.add(r[i])}return this.updateMatrixWorld(!0),r},bind:function(t,e){this.skeleton=t,void 0===e&&(this.updateMatrixWorld(!0),this.skeleton.calculateInverses(),e=this.matrixWorld),this.bindMatrix.copy(e),this.bindMatrixInverse.getInverse(e)},pose:function(){this.skeleton.pose()},normalizeSkinWeights:function(){var t,e;if(this.geometry&&this.geometry.isGeometry)for(e=0;e<this.geometry.skinWeights.length;e++){var i=this.geometry.skinWeights[e];t=1/i.manhattanLength(),t!==1/0?i.multiplyScalar(t):i.set(1,0,0,0)}else if(this.geometry&&this.geometry.isBufferGeometry){var n=new c,r=this.geometry.attributes.skinWeight;for(e=0;e<r.count;e++)n.x=r.getX(e),n.y=r.getY(e),n.z=r.getZ(e),n.w=r.getW(e),t=1/n.manhattanLength(),t!==1/0?n.multiplyScalar(t):n.set(1,0,0,0),r.setXYZW(e,n.x,n.y,n.z,n.w)}},updateMatrixWorld:function(t){Nt.prototype.updateMatrixWorld.call(this,t),\"attached\"===this.bindMode?this.bindMatrixInverse.getInverse(this.matrixWorld):\"detached\"===this.bindMode?this.bindMatrixInverse.getInverse(this.bindMatrix):console.warn(\"THREE.SkinnedMesh: Unrecognized bindMode: \"+this.bindMode)},clone:function(){return new this.constructor(this.geometry,this.material).copy(this)}}),Ie.prototype=Object.create(K.prototype),Ie.prototype.constructor=Ie,Ie.prototype.isLineBasicMaterial=!0,Ie.prototype.copy=function(t){return K.prototype.copy.call(this,t),this.color.copy(t.color),this.linewidth=t.linewidth,this.linecap=t.linecap,this.linejoin=t.linejoin,this},Ue.prototype=Object.assign(Object.create(ht.prototype),{constructor:Ue,isLine:!0,raycast:function(){var t=new n,e=new Ut,i=new it;return function(n,r){var o=n.linePrecision,s=o*o,c=this.geometry,h=this.matrixWorld;if(null===c.boundingSphere&&c.computeBoundingSphere(),i.copy(c.boundingSphere),i.applyMatrix4(h),!1!==n.ray.intersectsSphere(i)){t.getInverse(h),e.copy(n.ray).applyMatrix4(t);var l=new a,u=new a,p=new a,d=new a,f=this&&this.isLineSegments?2:1;if(c.isBufferGeometry){var m=c.index,g=c.attributes,v=g.position.array;if(null!==m)for(var y=m.array,x=0,b=y.length-1;x<b;x+=f){var _=y[x],w=y[x+1];l.fromArray(v,3*_),u.fromArray(v,3*w);var M=e.distanceSqToSegment(l,u,d,p);if(!(M>s)){d.applyMatrix4(this.matrixWorld);var E=n.ray.origin.distanceTo(d);E<n.near||E>n.far||r.push({distance:E,point:p.clone().applyMatrix4(this.matrixWorld),index:x,face:null,faceIndex:null,object:this})}}else for(var x=0,b=v.length/3-1;x<b;x+=f){l.fromArray(v,3*x),u.fromArray(v,3*x+3);var M=e.distanceSqToSegment(l,u,d,p);if(!(M>s)){d.applyMatrix4(this.matrixWorld);var E=n.ray.origin.distanceTo(d);E<n.near||E>n.far||r.push({distance:E,point:p.clone().applyMatrix4(this.matrixWorld),index:x,face:null,faceIndex:null,object:this})}}}else if(c.isGeometry)for(var T=c.vertices,S=T.length,x=0;x<S-1;x+=f){var M=e.distanceSqToSegment(T[x],T[x+1],d,p);if(!(M>s)){d.applyMatrix4(this.matrixWorld);var E=n.ray.origin.distanceTo(d);E<n.near||E>n.far||r.push({distance:E,point:p.clone().applyMatrix4(this.matrixWorld),index:x,face:null,faceIndex:null,object:this})}}}}}(),clone:function(){return new this.constructor(this.geometry,this.material).copy(this)}}),De.prototype=Object.assign(Object.create(Ue.prototype),{constructor:De,isLineSegments:!0}),Oe.prototype=Object.assign(Object.create(Ue.prototype),{constructor:Oe,isLineLoop:!0}),Ne.prototype=Object.create(K.prototype),Ne.prototype.constructor=Ne,Ne.prototype.isPointsMaterial=!0,Ne.prototype.copy=function(t){return K.prototype.copy.call(this,t),this.color.copy(t.color),this.map=t.map,this.size=t.size,this.sizeAttenuation=t.sizeAttenuation,this},Fe.prototype=Object.assign(Object.create(ht.prototype),{constructor:Fe,isPoints:!0,raycast:function(){var t=new n,e=new Ut,i=new it;return function(n,r){function o(t,i){var a=e.distanceSqToPoint(t);if(a<p){var o=e.closestPointToPoint(t);o.applyMatrix4(h);var c=n.ray.origin.distanceTo(o);if(c<n.near||c>n.far)return;r.push({distance:c,distanceToRay:Math.sqrt(a),point:o.clone(),index:i,face:null,object:s})}}var s=this,c=this.geometry,h=this.matrixWorld,l=n.params.Points.threshold;if(null===c.boundingSphere&&c.computeBoundingSphere(),i.copy(c.boundingSphere),i.applyMatrix4(h),i.radius+=l,!1!==n.ray.intersectsSphere(i)){t.getInverse(h),e.copy(n.ray).applyMatrix4(t);var u=l/((this.scale.x+this.scale.y+this.scale.z)/3),p=u*u,d=new a;if(c.isBufferGeometry){var f=c.index,m=c.attributes,g=m.position.array;if(null!==f)for(var v=f.array,y=0,x=v.length;y<x;y++){var b=v[y];d.fromArray(g,3*b),o(d,b)}else for(var y=0,_=g.length/3;y<_;y++)d.fromArray(g,3*y),o(d,y)}else for(var w=c.vertices,y=0,_=w.length;y<_;y++)o(w[y],y)}}}(),clone:function(){return new this.constructor(this.geometry,this.material).copy(this)}}),Be.prototype=Object.assign(Object.create(ht.prototype),{constructor:Be}),ze.prototype=Object.create(s.prototype),ze.prototype.constructor=ze,Ge.prototype=Object.create(s.prototype),Ge.prototype.constructor=Ge,Ge.prototype.isCompressedTexture=!0,He.prototype=Object.create(s.prototype),He.prototype.constructor=He,He.prototype.isDepthTexture=!0,Ve.prototype=Object.create(St.prototype),Ve.prototype.constructor=Ve,ke.prototype=Object.create(dt.prototype),ke.prototype.constructor=ke,je.prototype=Object.create(St.prototype),je.prototype.constructor=je,We.prototype=Object.create(dt.prototype),We.prototype.constructor=We,Xe.prototype=Object.create(St.prototype),Xe.prototype.constructor=Xe,qe.prototype=Object.create(dt.prototype),qe.prototype.constructor=qe,Ye.prototype=Object.create(Xe.prototype),Ye.prototype.constructor=Ye,Ze.prototype=Object.create(dt.prototype),Ze.prototype.constructor=Ze,Je.prototype=Object.create(Xe.prototype),Je.prototype.constructor=Je,Qe.prototype=Object.create(dt.prototype),Qe.prototype.constructor=Qe,Ke.prototype=Object.create(Xe.prototype),Ke.prototype.constructor=Ke,$e.prototype=Object.create(dt.prototype),$e.prototype.constructor=$e,ti.prototype=Object.create(Xe.prototype),ti.prototype.constructor=ti,ei.prototype=Object.create(dt.prototype),ei.prototype.constructor=ei,ii.prototype=Object.create(St.prototype),ii.prototype.constructor=ii,ni.prototype=Object.create(dt.prototype),ni.prototype.constructor=ni,ri.prototype=Object.create(St.prototype),ri.prototype.constructor=ri,ai.prototype=Object.create(dt.prototype),ai.prototype.constructor=ai,oi.prototype=Object.create(St.prototype),oi.prototype.constructor=oi;var Ds={area:function(t){for(var e=t.length,i=0,n=e-1,r=0;r<e;n=r++)i+=t[n].x*t[r].y-t[r].x*t[n].y;return.5*i},triangulate:function(){function t(t,e,i,n,r,a){var o,s,c,h,l,u,p,d,f;if(s=t[a[e]].x,c=t[a[e]].y,h=t[a[i]].x,l=t[a[i]].y,u=t[a[n]].x,p=t[a[n]].y,(h-s)*(p-c)-(l-c)*(u-s)<=0)return!1;var m,g,v,y,x,b,_,w,M,E,T,S,A,R,L;for(m=u-h,g=p-l,v=s-u,y=c-p,x=h-s,b=l-c,o=0;o<r;o++)if(d=t[a[o]].x,f=t[a[o]].y,!(d===s&&f===c||d===h&&f===l||d===u&&f===p)&&(_=d-s,w=f-c,M=d-h,E=f-l,T=d-u,S=f-p,L=m*E-g*M,A=x*w-b*_,R=v*S-y*T,L>=-Number.EPSILON&&R>=-Number.EPSILON&&A>=-Number.EPSILON))return!1;return!0}return function(e,i){var n=e.length;if(n<3)return null;var r,a,o,s=[],c=[],h=[];if(Ds.area(e)>0)for(a=0;a<n;a++)c[a]=a;else for(a=0;a<n;a++)c[a]=n-1-a;var l=n,u=2*l;for(a=l-1;l>2;){if(u--<=0)return console.warn(\"THREE.ShapeUtils: Unable to triangulate polygon! in triangulate()\"),i?h:s;if(r=a,l<=r&&(r=0),a=r+1,l<=a&&(a=0),o=a+1,l<=o&&(o=0),t(e,r,a,o,l,c)){var p,d,f,m,g;for(p=c[r],d=c[a],f=c[o],s.push([e[p],e[d],e[f]]),h.push([c[r],c[a],c[o]]),m=a,g=a+1;g<l;m++,g++)c[m]=c[g];l--,u=2*l}}return i?h:s}}(),triangulateShape:function(t,e){function i(t){var e=t.length;e>2&&t[e-1].equals(t[0])&&t.pop()}function n(t,e,i){return t.x!==e.x?t.x<e.x?t.x<=i.x&&i.x<=e.x:e.x<=i.x&&i.x<=t.x:t.y<e.y?t.y<=i.y&&i.y<=e.y:e.y<=i.y&&i.y<=t.y}function r(t,e,i,r,a){var o=e.x-t.x,s=e.y-t.y,c=r.x-i.x,h=r.y-i.y,l=t.x-i.x,u=t.y-i.y,p=s*c-o*h,d=s*l-o*u;if(Math.abs(p)>Number.EPSILON){var f;if(p>0){if(d<0||d>p)return[];if((f=h*l-c*u)<0||f>p)return[]}else{if(d>0||d<p)return[];if((f=h*l-c*u)>0||f<p)return[]}if(0===f)return!a||0!==d&&d!==p?[t]:[];if(f===p)return!a||0!==d&&d!==p?[e]:[];if(0===d)return[i];if(d===p)return[r];var m=f/p;return[{x:t.x+m*o,y:t.y+m*s}]}if(0!==d||h*l!=c*u)return[];var g=0===o&&0===s,v=0===c&&0===h\n;if(g&&v)return t.x!==i.x||t.y!==i.y?[]:[t];if(g)return n(i,r,t)?[t]:[];if(v)return n(t,e,i)?[i]:[];var y,x,b,_,w,M,E,T;return 0!==o?(t.x<e.x?(y=t,b=t.x,x=e,_=e.x):(y=e,b=e.x,x=t,_=t.x),i.x<r.x?(w=i,E=i.x,M=r,T=r.x):(w=r,E=r.x,M=i,T=i.x)):(t.y<e.y?(y=t,b=t.y,x=e,_=e.y):(y=e,b=e.y,x=t,_=t.y),i.y<r.y?(w=i,E=i.y,M=r,T=r.y):(w=r,E=r.y,M=i,T=i.y)),b<=E?_<E?[]:_===E?a?[]:[w]:_<=T?[w,x]:[w,M]:b>T?[]:b===T?a?[]:[y]:_<=T?[y,x]:[y,M]}function a(t,e,i,n){var r=e.x-t.x,a=e.y-t.y,o=i.x-t.x,s=i.y-t.y,c=n.x-t.x,h=n.y-t.y,l=r*s-a*o,u=r*h-a*c;if(Math.abs(l)>Number.EPSILON){var p=c*s-h*o;return l>0?u>=0&&p>=0:u>=0||p>=0}return u>0}i(t),e.forEach(i);for(var o,s,c,h,l,u,p={},d=t.concat(),f=0,m=e.length;f<m;f++)Array.prototype.push.apply(d,e[f]);for(o=0,s=d.length;o<s;o++)l=d[o].x+\":\"+d[o].y,void 0!==p[l]&&console.warn(\"THREE.ShapeUtils: Duplicate point\",l,o),p[l]=o;var g=function(t,e){for(var i,n,o,s,c,h,l,u,p,d,f,m=t.concat(),g=[],v=[],y=0,x=e.length;y<x;y++)g.push(y);for(var b=0,_=2*g.length;g.length>0;){if(--_<0){console.log('THREE.ShapeUtils: Infinite Loop! Holes left:\" + indepHoles.length + \", Probably Hole outside Shape!');break}for(o=b;o<m.length;o++){s=m[o],n=-1;for(var y=0;y<g.length;y++)if(h=g[y],l=s.x+\":\"+s.y+\":\"+h,void 0===v[l]){i=e[h];for(var w=0;w<i.length;w++)if(c=i[w],function(t,e){var n=m.length-1,r=t-1;r<0&&(r=n);var o=t+1;o>n&&(o=0);var s=a(m[t],m[r],m[o],i[e]);if(!s)return!1;var c=i.length-1,h=e-1;h<0&&(h=c);var l=e+1;return l>c&&(l=0),!!(s=a(i[e],i[h],i[l],m[t]))}(o,w)&&!function(t,e){var i,n,a;for(i=0;i<m.length;i++)if(n=i+1,n%=m.length,a=r(t,e,m[i],m[n],!0),a.length>0)return!0;return!1}(s,c)&&!function(t,i){var n,a,o,s,c;for(n=0;n<g.length;n++)for(a=e[g[n]],o=0;o<a.length;o++)if(s=o+1,s%=a.length,c=r(t,i,a[o],a[s],!0),c.length>0)return!0;return!1}(s,c)){n=w,g.splice(y,1),u=m.slice(0,o+1),p=m.slice(o),d=i.slice(n),f=i.slice(0,n+1),m=u.concat(d).concat(f).concat(p),b=o;break}if(n>=0)break;v[l]=!0}if(n>=0)break}}return m}(t,e),v=Ds.triangulate(g,!1);for(o=0,s=v.length;o<s;o++)for(h=v[o],c=0;c<3;c++)l=h[c].x+\":\"+h[c].y,void 0!==(u=p[l])&&(h[c]=u);return v.concat()},isClockWise:function(t){return Ds.area(t)<0}};si.prototype=Object.create(dt.prototype),si.prototype.constructor=si,ci.prototype=Object.create(St.prototype),ci.prototype.constructor=ci,ci.prototype.getArrays=function(){var t=this.getAttribute(\"position\"),e=t?Array.prototype.slice.call(t.array):[],i=this.getAttribute(\"uv\"),n=i?Array.prototype.slice.call(i.array):[],r=this.index;return{position:e,uv:n,index:r?Array.prototype.slice.call(r.array):[]}},ci.prototype.addShapeList=function(t,e){var i=t.length;e.arrays=this.getArrays();for(var n=0;n<i;n++){var r=t[n];this.addShape(r,e)}this.setIndex(e.arrays.index),this.addAttribute(\"position\",new wt(e.arrays.position,3)),this.addAttribute(\"uv\",new wt(e.arrays.uv,2))},ci.prototype.addShape=function(t,e){function n(t,e,i){return e||console.error(\"THREE.ExtrudeGeometry: vec does not exist\"),e.clone().multiplyScalar(i).add(t)}function r(t,e,n){var r,a,o,s=t.x-e.x,c=t.y-e.y,h=n.x-t.x,l=n.y-t.y,u=s*s+c*c,p=s*l-c*h;if(Math.abs(p)>Number.EPSILON){var d=Math.sqrt(u),f=Math.sqrt(h*h+l*l),m=e.x-c/d,g=e.y+s/d,v=n.x-l/f,y=n.y+h/f,x=((v-m)*l-(y-g)*h)/(s*l-c*h);r=m+s*x-t.x,a=g+c*x-t.y;var b=r*r+a*a;if(b<=2)return new i(r,a);o=Math.sqrt(b/2)}else{var _=!1;s>Number.EPSILON?h>Number.EPSILON&&(_=!0):s<-Number.EPSILON?h<-Number.EPSILON&&(_=!0):Math.sign(c)===Math.sign(l)&&(_=!0),_?(r=-c,a=s,o=Math.sqrt(u)):(r=s,a=c,o=Math.sqrt(u/2))}return new i(r/o,a/o)}function o(t,e){var i,n;for(J=t.length;--J>=0;){i=J,n=J-1,n<0&&(n=t.length-1);var r=0,a=R+2*T;for(r=0;r<a;r++){var o=q*r,s=q*(r+1);h(e+i+o,e+n+o,e+n+s,e+i+s)}}}function s(t,e,i){_.push(t),_.push(e),_.push(i)}function c(t,e,i){l(t),l(e),l(i);var n=y.length/3,r=C.generateTopUV(O,y,n-3,n-2,n-1);u(r[0]),u(r[1]),u(r[2])}function h(t,e,i,n){l(t),l(e),l(n),l(e),l(i),l(n);var r=y.length/3,a=C.generateSideWallUV(O,y,r-6,r-3,r-2,r-1);u(a[0]),u(a[1]),u(a[3]),u(a[1]),u(a[2]),u(a[3])}function l(t){x.push(y.length/3),y.push(_[3*t+0]),y.push(_[3*t+1]),y.push(_[3*t+2])}function u(t){b.push(t.x),b.push(t.y)}var p,d,f,m,g,v=e.arrays?e.arrays:this.getArrays(),y=v.position,x=v.index,b=v.uv,_=[],w=void 0!==e.amount?e.amount:100,M=void 0!==e.bevelThickness?e.bevelThickness:6,E=void 0!==e.bevelSize?e.bevelSize:M-2,T=void 0!==e.bevelSegments?e.bevelSegments:3,S=void 0===e.bevelEnabled||e.bevelEnabled,A=void 0!==e.curveSegments?e.curveSegments:12,R=void 0!==e.steps?e.steps:1,L=e.extrudePath,P=!1,C=void 0!==e.UVGenerator?e.UVGenerator:si.WorldUVGenerator;L&&(p=L.getSpacedPoints(R),P=!0,S=!1,d=void 0!==e.frames?e.frames:L.computeFrenetFrames(R,!1),f=new a,m=new a,g=new a),S||(T=0,M=0,E=0);var I,U,D,O=this,N=t.extractPoints(A),F=N.shape,B=N.holes;if(!Ds.isClockWise(F))for(F=F.reverse(),U=0,D=B.length;U<D;U++)I=B[U],Ds.isClockWise(I)&&(B[U]=I.reverse());var z=Ds.triangulateShape(F,B),G=F;for(U=0,D=B.length;U<D;U++)I=B[U],F=F.concat(I);for(var H,V,k,j,W,X,q=F.length,Y=z.length,Z=[],J=0,Q=G.length,K=Q-1,$=J+1;J<Q;J++,K++,$++)K===Q&&(K=0),$===Q&&($=0),Z[J]=r(G[J],G[K],G[$]);var tt,et=[],it=Z.concat();for(U=0,D=B.length;U<D;U++){for(I=B[U],tt=[],J=0,Q=I.length,K=Q-1,$=J+1;J<Q;J++,K++,$++)K===Q&&(K=0),$===Q&&($=0),tt[J]=r(I[J],I[K],I[$]);et.push(tt),it=it.concat(tt)}for(H=0;H<T;H++){for(k=H/T,j=M*Math.cos(k*Math.PI/2),V=E*Math.sin(k*Math.PI/2),J=0,Q=G.length;J<Q;J++)W=n(G[J],Z[J],V),s(W.x,W.y,-j);for(U=0,D=B.length;U<D;U++)for(I=B[U],tt=et[U],J=0,Q=I.length;J<Q;J++)W=n(I[J],tt[J],V),s(W.x,W.y,-j)}for(V=E,J=0;J<q;J++)W=S?n(F[J],it[J],V):F[J],P?(m.copy(d.normals[0]).multiplyScalar(W.x),f.copy(d.binormals[0]).multiplyScalar(W.y),g.copy(p[0]).add(m).add(f),s(g.x,g.y,g.z)):s(W.x,W.y,0);var nt;for(nt=1;nt<=R;nt++)for(J=0;J<q;J++)W=S?n(F[J],it[J],V):F[J],P?(m.copy(d.normals[nt]).multiplyScalar(W.x),f.copy(d.binormals[nt]).multiplyScalar(W.y),g.copy(p[nt]).add(m).add(f),s(g.x,g.y,g.z)):s(W.x,W.y,w/R*nt);for(H=T-1;H>=0;H--){for(k=H/T,j=M*Math.cos(k*Math.PI/2),V=E*Math.sin(k*Math.PI/2),J=0,Q=G.length;J<Q;J++)W=n(G[J],Z[J],V),s(W.x,W.y,w+j);for(U=0,D=B.length;U<D;U++)for(I=B[U],tt=et[U],J=0,Q=I.length;J<Q;J++)W=n(I[J],tt[J],V),P?s(W.x,W.y+p[R-1].y,p[R-1].x+j):s(W.x,W.y,w+j)}!function(){var t=y.length/3;if(S){var i=0,n=q*i;for(J=0;J<Y;J++)X=z[J],c(X[2]+n,X[1]+n,X[0]+n);for(i=R+2*T,n=q*i,J=0;J<Y;J++)X=z[J],c(X[0]+n,X[1]+n,X[2]+n)}else{for(J=0;J<Y;J++)X=z[J],c(X[2],X[1],X[0]);for(J=0;J<Y;J++)X=z[J],c(X[0]+q*R,X[1]+q*R,X[2]+q*R)}O.addGroup(t,y.length/3-t,void 0!==e.material?e.material:0)}(),function(){var t=y.length/3,i=0;for(o(G,i),i+=G.length,U=0,D=B.length;U<D;U++)I=B[U],o(I,i),i+=I.length;O.addGroup(t,y.length/3-t,void 0!==e.extrudeMaterial?e.extrudeMaterial:1)}(),e.arrays||(this.setIndex(x),this.addAttribute(\"position\",new wt(y,3)),this.addAttribute(\"uv\",new wt(e.arrays.uv,2)))},si.WorldUVGenerator={generateTopUV:function(t,e,n,r,a){var o=e[3*n],s=e[3*n+1],c=e[3*r],h=e[3*r+1],l=e[3*a],u=e[3*a+1];return[new i(o,s),new i(c,h),new i(l,u)]},generateSideWallUV:function(t,e,n,r,a,o){var s=e[3*n],c=e[3*n+1],h=e[3*n+2],l=e[3*r],u=e[3*r+1],p=e[3*r+2],d=e[3*a],f=e[3*a+1],m=e[3*a+2],g=e[3*o],v=e[3*o+1],y=e[3*o+2];return Math.abs(c-u)<.01?[new i(s,1-h),new i(l,1-p),new i(d,1-m),new i(g,1-y)]:[new i(c,1-h),new i(u,1-p),new i(f,1-m),new i(v,1-y)]}},hi.prototype=Object.create(dt.prototype),hi.prototype.constructor=hi,li.prototype=Object.create(ci.prototype),li.prototype.constructor=li,ui.prototype=Object.create(dt.prototype),ui.prototype.constructor=ui,pi.prototype=Object.create(St.prototype),pi.prototype.constructor=pi,di.prototype=Object.create(dt.prototype),di.prototype.constructor=di,fi.prototype=Object.create(St.prototype),fi.prototype.constructor=fi,mi.prototype=Object.create(dt.prototype),mi.prototype.constructor=mi,gi.prototype=Object.create(St.prototype),gi.prototype.constructor=gi,vi.prototype=Object.create(dt.prototype),vi.prototype.constructor=vi,yi.prototype=Object.create(St.prototype),yi.prototype.constructor=yi,xi.prototype=Object.create(St.prototype),xi.prototype.constructor=xi,bi.prototype=Object.create(dt.prototype),bi.prototype.constructor=bi,_i.prototype=Object.create(St.prototype),_i.prototype.constructor=_i,wi.prototype=Object.create(bi.prototype),wi.prototype.constructor=wi,Mi.prototype=Object.create(_i.prototype),Mi.prototype.constructor=Mi,Ei.prototype=Object.create(dt.prototype),Ei.prototype.constructor=Ei,Ti.prototype=Object.create(St.prototype),Ti.prototype.constructor=Ti;var Os=Object.freeze({WireframeGeometry:Ve,ParametricGeometry:ke,ParametricBufferGeometry:je,TetrahedronGeometry:qe,TetrahedronBufferGeometry:Ye,OctahedronGeometry:Ze,OctahedronBufferGeometry:Je,IcosahedronGeometry:Qe,IcosahedronBufferGeometry:Ke,DodecahedronGeometry:$e,DodecahedronBufferGeometry:ti,PolyhedronGeometry:We,PolyhedronBufferGeometry:Xe,TubeGeometry:ei,TubeBufferGeometry:ii,TorusKnotGeometry:ni,TorusKnotBufferGeometry:ri,TorusGeometry:ai,TorusBufferGeometry:oi,TextGeometry:hi,TextBufferGeometry:li,SphereGeometry:ui,SphereBufferGeometry:pi,RingGeometry:di,RingBufferGeometry:fi,PlaneGeometry:Lt,PlaneBufferGeometry:Pt,LatheGeometry:mi,LatheBufferGeometry:gi,ShapeGeometry:vi,ShapeBufferGeometry:yi,ExtrudeGeometry:si,ExtrudeBufferGeometry:ci,EdgesGeometry:xi,ConeGeometry:wi,ConeBufferGeometry:Mi,CylinderGeometry:bi,CylinderBufferGeometry:_i,CircleGeometry:Ei,CircleBufferGeometry:Ti,BoxGeometry:At,BoxBufferGeometry:Rt});Si.prototype=Object.create(K.prototype),Si.prototype.constructor=Si,Si.prototype.isShadowMaterial=!0,Ai.prototype=Object.create(It.prototype),Ai.prototype.constructor=Ai,Ai.prototype.isRawShaderMaterial=!0,Ri.prototype=Object.create(K.prototype),Ri.prototype.constructor=Ri,Ri.prototype.isMeshStandardMaterial=!0,Ri.prototype.copy=function(t){return K.prototype.copy.call(this,t),this.defines={STANDARD:\"\"},this.color.copy(t.color),this.roughness=t.roughness,this.metalness=t.metalness,this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.roughnessMap=t.roughnessMap,this.metalnessMap=t.metalnessMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.envMapIntensity=t.envMapIntensity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this},Li.prototype=Object.create(Ri.prototype),Li.prototype.constructor=Li,Li.prototype.isMeshPhysicalMaterial=!0,Li.prototype.copy=function(t){return Ri.prototype.copy.call(this,t),this.defines={PHYSICAL:\"\"},this.reflectivity=t.reflectivity,this.clearCoat=t.clearCoat,this.clearCoatRoughness=t.clearCoatRoughness,this},Pi.prototype=Object.create(K.prototype),Pi.prototype.constructor=Pi,Pi.prototype.isMeshPhongMaterial=!0,Pi.prototype.copy=function(t){return K.prototype.copy.call(this,t),this.color.copy(t.color),this.specular.copy(t.specular),this.shininess=t.shininess,this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this},Ci.prototype=Object.create(Pi.prototype),Ci.prototype.constructor=Ci,Ci.prototype.isMeshToonMaterial=!0,Ci.prototype.copy=function(t){return Pi.prototype.copy.call(this,t),this.gradientMap=t.gradientMap,this},Ii.prototype=Object.create(K.prototype),Ii.prototype.constructor=Ii,Ii.prototype.isMeshNormalMaterial=!0,Ii.prototype.copy=function(t){return K.prototype.copy.call(this,t),this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this},Ui.prototype=Object.create(K.prototype),Ui.prototype.constructor=Ui,Ui.prototype.isMeshLambertMaterial=!0,Ui.prototype.copy=function(t){return K.prototype.copy.call(this,t),this.color.copy(t.color),this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this},Di.prototype=Object.create(Ie.prototype),Di.prototype.constructor=Di,Di.prototype.isLineDashedMaterial=!0,Di.prototype.copy=function(t){return Ie.prototype.copy.call(this,t),this.scale=t.scale,this.dashSize=t.dashSize,this.gapSize=t.gapSize,this};var Ns=Object.freeze({ShadowMaterial:Si,SpriteMaterial:Se,RawShaderMaterial:Ai,ShaderMaterial:It,PointsMaterial:Ne,MeshPhysicalMaterial:Li,MeshStandardMaterial:Ri,MeshPhongMaterial:Pi,MeshToonMaterial:Ci,MeshNormalMaterial:Ii,MeshLambertMaterial:Ui,MeshDepthMaterial:$,MeshDistanceMaterial:tt,MeshBasicMaterial:Ct,LineDashedMaterial:Di,LineBasicMaterial:Ie,Material:K}),Fs={enabled:!1,files:{},add:function(t,e){!1!==this.enabled&&(this.files[t]=e)},get:function(t){if(!1!==this.enabled)return this.files[t]},remove:function(t){delete this.files[t]},clear:function(){this.files={}}},Bs=new Oi,zs={};Object.assign(Ni.prototype,{load:function(t,e,i,n){void 0===t&&(t=\"\"),void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);var r=this,a=Fs.get(t);if(void 0!==a)return r.manager.itemStart(t),setTimeout(function(){e&&e(a),r.manager.itemEnd(t)},0),a;if(void 0!==zs[t])return void zs[t].push({onLoad:e,onProgress:i,onError:n});var o=/^data:(.*?)(;base64)?,(.*)$/,s=t.match(o);if(s){var c=s[1],h=!!s[2],l=s[3];l=window.decodeURIComponent(l),h&&(l=window.atob(l));try{var u,p=(this.responseType||\"\").toLowerCase();switch(p){case\"arraybuffer\":case\"blob\":for(var d=new Uint8Array(l.length),f=0;f<l.length;f++)d[f]=l.charCodeAt(f);u=\"blob\"===p?new Blob([d.buffer],{type:c}):d.buffer;break;case\"document\":var m=new DOMParser;u=m.parseFromString(l,c);break;case\"json\":u=JSON.parse(l);break;default:u=l}window.setTimeout(function(){e&&e(u),r.manager.itemEnd(t)},0)}catch(e){window.setTimeout(function(){n&&n(e),r.manager.itemEnd(t),r.manager.itemError(t)},0)}}else{zs[t]=[],zs[t].push({onLoad:e,onProgress:i,onError:n});var g=new XMLHttpRequest;g.open(\"GET\",t,!0),g.addEventListener(\"load\",function(e){var i=e.target.response;Fs.add(t,i);var n=zs[t];if(delete zs[t],200===this.status){for(var a=0,o=n.length;a<o;a++){var s=n[a];s.onLoad&&s.onLoad(i)}r.manager.itemEnd(t)}else if(0===this.status){console.warn(\"THREE.FileLoader: HTTP Status 0 received.\");for(var a=0,o=n.length;a<o;a++){var s=n[a];s.onLoad&&s.onLoad(i)}r.manager.itemEnd(t)}else{for(var a=0,o=n.length;a<o;a++){var s=n[a];s.onError&&s.onError(e)}r.manager.itemEnd(t),r.manager.itemError(t)}},!1),g.addEventListener(\"progress\",function(e){for(var i=zs[t],n=0,r=i.length;n<r;n++){var a=i[n];a.onProgress&&a.onProgress(e)}},!1),g.addEventListener(\"error\",function(e){var i=zs[t];delete zs[t];for(var n=0,a=i.length;n<a;n++){var o=i[n];o.onError&&o.onError(e)}r.manager.itemEnd(t),r.manager.itemError(t)},!1),void 0!==this.responseType&&(g.responseType=this.responseType),void 0!==this.withCredentials&&(g.withCredentials=this.withCredentials),g.overrideMimeType&&g.overrideMimeType(void 0!==this.mimeType?this.mimeType:\"text/plain\");for(var v in this.requestHeader)g.setRequestHeader(v,this.requestHeader[v]);g.send(null)}return r.manager.itemStart(t),g},setPath:function(t){return this.path=t,this},setResponseType:function(t){return this.responseType=t,this},setWithCredentials:function(t){return this.withCredentials=t,this},setMimeType:function(t){return this.mimeType=t,this},setRequestHeader:function(t){return this.requestHeader=t,this}}),Object.assign(Fi.prototype,{load:function(t,e,i,n){var r=this,a=[],o=new Ge;o.image=a;var s=new Ni(this.manager);if(s.setPath(this.path),s.setResponseType(\"arraybuffer\"),Array.isArray(t))for(var c=0,h=0,l=t.length;h<l;++h)!function(h){s.load(t[h],function(t){var i=r._parser(t,!0);a[h]={width:i.width,height:i.height,format:i.format,mipmaps:i.mipmaps},6===(c+=1)&&(1===i.mipmapCount&&(o.minFilter=Mo),o.format=i.format,o.needsUpdate=!0,e&&e(o))},i,n)}(h);else s.load(t,function(t){var i=r._parser(t,!0);if(i.isCubemap)for(var n=i.mipmaps.length/i.mipmapCount,s=0;s<n;s++){a[s]={mipmaps:[]};for(var c=0;c<i.mipmapCount;c++)a[s].mipmaps.push(i.mipmaps[s*i.mipmapCount+c]),a[s].format=i.format,a[s].width=i.width,a[s].height=i.height}else o.image.width=i.width,o.image.height=i.height,o.mipmaps=i.mipmaps;1===i.mipmapCount&&(o.minFilter=Mo),o.format=i.format,o.needsUpdate=!0,e&&e(o)},i,n);return o},setPath:function(t){return this.path=t,this}}),Object.assign(Bi.prototype,{load:function(t,e,i,n){var r=this,a=new u,o=new Ni(this.manager);return o.setResponseType(\"arraybuffer\"),o.load(t,function(t){var i=r._parser(t);i&&(void 0!==i.image?a.image=i.image:void 0!==i.data&&(a.image.width=i.width,a.image.height=i.height,a.image.data=i.data),a.wrapS=void 0!==i.wrapS?i.wrapS:yo,a.wrapT=void 0!==i.wrapT?i.wrapT:yo,a.magFilter=void 0!==i.magFilter?i.magFilter:Mo,a.minFilter=void 0!==i.minFilter?i.minFilter:To,a.anisotropy=void 0!==i.anisotropy?i.anisotropy:1,void 0!==i.format&&(a.format=i.format),void 0!==i.type&&(a.type=i.type),void 0!==i.mipmaps&&(a.mipmaps=i.mipmaps),1===i.mipmapCount&&(a.minFilter=Mo),a.needsUpdate=!0,e&&e(a,i))},i,n),a}}),Object.assign(zi.prototype,{crossOrigin:\"Anonymous\",load:function(t,e,i,n){void 0===t&&(t=\"\"),void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);var r=this,a=Fs.get(t);if(void 0!==a)return r.manager.itemStart(t),setTimeout(function(){e&&e(a),r.manager.itemEnd(t)},0),a;var o=document.createElementNS(\"http://www.w3.org/1999/xhtml\",\"img\");return o.addEventListener(\"load\",function(){Fs.add(t,this),e&&e(this),r.manager.itemEnd(t)},!1),o.addEventListener(\"error\",function(e){n&&n(e),r.manager.itemEnd(t),r.manager.itemError(t)},!1),\"data:\"!==t.substr(0,5)&&void 0!==this.crossOrigin&&(o.crossOrigin=this.crossOrigin),r.manager.itemStart(t),o.src=t,o},setCrossOrigin:function(t){return this.crossOrigin=t,this},setPath:function(t){return this.path=t,this}}),Object.assign(Gi.prototype,{crossOrigin:\"Anonymous\",load:function(t,e,i,n){var r=new p,a=new zi(this.manager);a.setCrossOrigin(this.crossOrigin),a.setPath(this.path);for(var o=0,s=0;s<t.length;++s)!function(i){a.load(t[i],function(t){r.images[i]=t,6==++o&&(r.needsUpdate=!0,e&&e(r))},void 0,n)}(s);return r},setCrossOrigin:function(t){return this.crossOrigin=t,this},setPath:function(t){return this.path=t,this}}),Object.assign(Hi.prototype,{crossOrigin:\"Anonymous\",load:function(t,e,i,n){var r=new zi(this.manager);r.setCrossOrigin(this.crossOrigin),r.setPath(this.path);var a=new s;return a.image=r.load(t,function(){var i=t.search(/\\.(jpg|jpeg)$/)>0||0===t.search(/^data\\:image\\/jpeg/);a.format=i?zo:Go,a.needsUpdate=!0,void 0!==e&&e(a)},i,n),a},setCrossOrigin:function(t){return this.crossOrigin=t,this},setPath:function(t){return this.path=t,this}}),Vi.prototype=Object.assign(Object.create(ht.prototype),{constructor:Vi,isLight:!0,copy:function(t){return ht.prototype.copy.call(this,t),this.color.copy(t.color),this.intensity=t.intensity,this},toJSON:function(t){var e=ht.prototype.toJSON.call(this,t);return e.object.color=this.color.getHex(),e.object.intensity=this.intensity,void 0!==this.groundColor&&(e.object.groundColor=this.groundColor.getHex()),void 0!==this.distance&&(e.object.distance=this.distance),void 0!==this.angle&&(e.object.angle=this.angle),void 0!==this.decay&&(e.object.decay=this.decay),void 0!==this.penumbra&&(e.object.penumbra=this.penumbra),void 0!==this.shadow&&(e.object.shadow=this.shadow.toJSON()),e}}),ki.prototype=Object.assign(Object.create(Vi.prototype),{constructor:ki,isHemisphereLight:!0,copy:function(t){return Vi.prototype.copy.call(this,t),this.groundColor.copy(t.groundColor),this}}),Object.assign(ji.prototype,{copy:function(t){return this.camera=t.camera.clone(),this.bias=t.bias,this.radius=t.radius,this.mapSize.copy(t.mapSize),this},clone:function(){return(new this.constructor).copy(this)},toJSON:function(){var t={};return 0!==this.bias&&(t.bias=this.bias),1!==this.radius&&(t.radius=this.radius),512===this.mapSize.x&&512===this.mapSize.y||(t.mapSize=this.mapSize.toArray()),t.camera=this.camera.toJSON(!1).object,delete t.camera.matrix,t}}),Wi.prototype=Object.assign(Object.create(ji.prototype),{constructor:Wi,isSpotLightShadow:!0,update:function(t){var e=this.camera,i=2*ms.RAD2DEG*t.angle,n=this.mapSize.width/this.mapSize.height,r=t.distance||e.far;i===e.fov&&n===e.aspect&&r===e.far||(e.fov=i,e.aspect=n,e.far=r,e.updateProjectionMatrix())}}),Xi.prototype=Object.assign(Object.create(Vi.prototype),{constructor:Xi,isSpotLight:!0,copy:function(t){return Vi.prototype.copy.call(this,t),this.distance=t.distance,this.angle=t.angle,this.penumbra=t.penumbra,this.decay=t.decay,this.target=t.target.clone(),this.shadow=t.shadow.clone(),this}}),qi.prototype=Object.assign(Object.create(Vi.prototype),{constructor:qi,isPointLight:!0,copy:function(t){return Vi.prototype.copy.call(this,t),this.distance=t.distance,this.decay=t.decay,this.shadow=t.shadow.clone(),this}}),Yi.prototype=Object.assign(Object.create(ji.prototype),{constructor:Yi}),Zi.prototype=Object.assign(Object.create(Vi.prototype),{constructor:Zi,isDirectionalLight:!0,copy:function(t){return Vi.prototype.copy.call(this,t),this.target=t.target.clone(),this.shadow=t.shadow.clone(),this}}),Ji.prototype=Object.assign(Object.create(Vi.prototype),{constructor:Ji,isAmbientLight:!0}),Qi.prototype=Object.assign(Object.create(Vi.prototype),{constructor:Qi,isRectAreaLight:!0,copy:function(t){return Vi.prototype.copy.call(this,t),this.width=t.width,this.height=t.height,this},toJSON:function(t){var e=Vi.prototype.toJSON.call(this,t);return e.object.width=this.width,e.object.height=this.height,e}}),Ki.prototype=Object.assign(Object.create(hn.prototype),{constructor:Ki,ValueTypeName:\"string\",ValueBufferType:Array,DefaultInterpolation:2300,InterpolantFactoryMethodLinear:void 0,InterpolantFactoryMethodSmooth:void 0}),$i.prototype=Object.assign(Object.create(hn.prototype),{constructor:$i,ValueTypeName:\"bool\",ValueBufferType:Array,DefaultInterpolation:2300,InterpolantFactoryMethodLinear:void 0,InterpolantFactoryMethodSmooth:void 0}),Object.assign(tn.prototype,{evaluate:function(t){var e=this.parameterPositions,i=this._cachedIndex,n=e[i],r=e[i-1];t:{e:{var a;i:{n:if(!(t<n)){for(var o=i+2;;){if(void 0===n){if(t<r)break n;return i=e.length,this._cachedIndex=i,this.afterEnd_(i-1,t,r)}if(i===o)break;if(r=n,n=e[++i],t<n)break e}a=e.length;break i}{if(t>=r)break t;var s=e[1];t<s&&(i=2,r=s);for(var o=i-2;;){if(void 0===r)return this._cachedIndex=0,this.beforeStart_(0,t,n);if(i===o)break;if(n=r,r=e[--i-1],t>=r)break e}a=i,i=0}}for(;i<a;){var c=i+a>>>1;t<e[c]?a=c:i=c+1}if(n=e[i],void 0===(r=e[i-1]))return this._cachedIndex=0,this.beforeStart_(0,t,n);if(void 0===n)return i=e.length,this._cachedIndex=i,this.afterEnd_(i-1,r,t)}this._cachedIndex=i,this.intervalChanged_(i,r,n)}return this.interpolate_(i,r,t,n)},settings:null,DefaultSettings_:{},getSettings_:function(){return this.settings||this.DefaultSettings_},copySampleValue_:function(t){for(var e=this.resultBuffer,i=this.sampleValues,n=this.valueSize,r=t*n,a=0;a!==n;++a)e[a]=i[r+a];return e},interpolate_:function(){throw new Error(\"call to abstract method\")},intervalChanged_:function(){}}),Object.assign(tn.prototype,{beforeStart_:tn.prototype.copySampleValue_,afterEnd_:tn.prototype.copySampleValue_}),en.prototype=Object.assign(Object.create(tn.prototype),{constructor:en,interpolate_:function(t,e,i,n){for(var a=this.resultBuffer,o=this.sampleValues,s=this.valueSize,c=t*s,h=(i-e)/(n-e),l=c+s;c!==l;c+=4)r.slerpFlat(a,0,o,c-s,o,c,h);return a}}),nn.prototype=Object.assign(Object.create(hn.prototype),{constructor:nn,ValueTypeName:\"quaternion\",DefaultInterpolation:2301,InterpolantFactoryMethodLinear:function(t){return new en(this.times,this.values,this.getValueSize(),t)},InterpolantFactoryMethodSmooth:void 0}),rn.prototype=Object.assign(Object.create(hn.prototype),{constructor:rn,ValueTypeName:\"color\"}),an.prototype=Object.assign(Object.create(hn.prototype),{constructor:an,ValueTypeName:\"number\"}),on.prototype=Object.assign(Object.create(tn.prototype),{constructor:on,DefaultSettings_:{endingStart:is,endingEnd:is},intervalChanged_:function(t,e,i){var n=this.parameterPositions,r=t-2,a=t+1,o=n[r],s=n[a];if(void 0===o)switch(this.getSettings_().endingStart){case 2401:r=t,o=2*e-i;break;case 2402:r=n.length-2,o=e+n[r]-n[r+1];break;default:r=t,o=i}if(void 0===s)switch(this.getSettings_().endingEnd){case 2401:a=t,s=2*i-e;break;case 2402:a=1,s=i+n[1]-n[0];break;default:a=t-1,s=e}var c=.5*(i-e),h=this.valueSize;this._weightPrev=c/(e-o),this._weightNext=c/(s-i),this._offsetPrev=r*h,this._offsetNext=a*h},interpolate_:function(t,e,i,n){for(var r=this.resultBuffer,a=this.sampleValues,o=this.valueSize,s=t*o,c=s-o,h=this._offsetPrev,l=this._offsetNext,u=this._weightPrev,p=this._weightNext,d=(i-e)/(n-e),f=d*d,m=f*d,g=-u*m+2*u*f-u*d,v=(1+u)*m+(-1.5-2*u)*f+(-.5+u)*d+1,y=(-1-p)*m+(1.5+p)*f+.5*d,x=p*m-p*f,b=0;b!==o;++b)r[b]=g*a[h+b]+v*a[c+b]+y*a[s+b]+x*a[l+b];return r}}),sn.prototype=Object.assign(Object.create(tn.prototype),{constructor:sn,interpolate_:function(t,e,i,n){for(var r=this.resultBuffer,a=this.sampleValues,o=this.valueSize,s=t*o,c=s-o,h=(i-e)/(n-e),l=1-h,u=0;u!==o;++u)r[u]=a[c+u]*l+a[s+u]*h;return r}}),cn.prototype=Object.assign(Object.create(tn.prototype),{constructor:cn,interpolate_:function(t){return this.copySampleValue_(t-1)}});var Gs={arraySlice:function(t,e,i){return Gs.isTypedArray(t)?new t.constructor(t.subarray(e,void 0!==i?i:t.length)):t.slice(e,i)},convertArray:function(t,e,i){return!t||!i&&t.constructor===e?t:\"number\"==typeof e.BYTES_PER_ELEMENT?new e(t):Array.prototype.slice.call(t)},isTypedArray:function(t){return ArrayBuffer.isView(t)&&!(t instanceof DataView)},getKeyframeOrder:function(t){function e(e,i){return t[e]-t[i]}for(var i=t.length,n=new Array(i),r=0;r!==i;++r)n[r]=r;return n.sort(e),n},sortedArray:function(t,e,i){for(var n=t.length,r=new t.constructor(n),a=0,o=0;o!==n;++a)for(var s=i[a]*e,c=0;c!==e;++c)r[o++]=t[s+c];return r},flattenJSON:function(t,e,i,n){for(var r=1,a=t[0];void 0!==a&&void 0===a[n];)a=t[r++];if(void 0!==a){var o=a[n];if(void 0!==o)if(Array.isArray(o))do{o=a[n],void 0!==o&&(e.push(a.time),i.push.apply(i,o)),a=t[r++]}while(void 0!==a);else if(void 0!==o.toArray)do{o=a[n],void 0!==o&&(e.push(a.time),o.toArray(i,i.length)),a=t[r++]}while(void 0!==a);else do{o=a[n],void 0!==o&&(e.push(a.time),i.push(o)),a=t[r++]}while(void 0!==a)}}};Object.assign(hn,{parse:function(t){if(void 0===t.type)throw new Error(\"THREE.KeyframeTrack: track type undefined, can not parse\");var e=hn._getTrackTypeForValueTypeName(t.type);if(void 0===t.times){var i=[],n=[];Gs.flattenJSON(t.keys,i,n,\"value\"),t.times=i,t.values=n}return void 0!==e.parse?e.parse(t):new e(t.name,t.times,t.values,t.interpolation)},toJSON:function(t){var e,i=t.constructor;if(void 0!==i.toJSON)e=i.toJSON(t);else{e={name:t.name,times:Gs.convertArray(t.times,Array),values:Gs.convertArray(t.values,Array)};var n=t.getInterpolation();n!==t.DefaultInterpolation&&(e.interpolation=n)}return e.type=t.ValueTypeName,e},_getTrackTypeForValueTypeName:function(t){switch(t.toLowerCase()){case\"scalar\":case\"double\":case\"float\":case\"number\":case\"integer\":return an;case\"vector\":case\"vector2\":case\"vector3\":case\"vector4\":return ln;case\"color\":return rn;case\"quaternion\":return nn;case\"bool\":case\"boolean\":return $i;case\"string\":return Ki}throw new Error(\"THREE.KeyframeTrack: Unsupported typeName: \"+t)}}),Object.assign(hn.prototype,{constructor:hn,TimeBufferType:Float32Array,ValueBufferType:Float32Array,DefaultInterpolation:2301,InterpolantFactoryMethodDiscrete:function(t){return new cn(this.times,this.values,this.getValueSize(),t)},InterpolantFactoryMethodLinear:function(t){return new sn(this.times,this.values,this.getValueSize(),t)},InterpolantFactoryMethodSmooth:function(t){return new on(this.times,this.values,this.getValueSize(),t)},setInterpolation:function(t){var e;switch(t){case 2300:e=this.InterpolantFactoryMethodDiscrete;break;case 2301:e=this.InterpolantFactoryMethodLinear;break;case 2302:e=this.InterpolantFactoryMethodSmooth}if(void 0===e){var i=\"unsupported interpolation for \"+this.ValueTypeName+\" keyframe track named \"+this.name;if(void 0===this.createInterpolant){if(t===this.DefaultInterpolation)throw new Error(i);this.setInterpolation(this.DefaultInterpolation)}return void console.warn(\"THREE.KeyframeTrack:\",i)}this.createInterpolant=e},getInterpolation:function(){switch(this.createInterpolant){case this.InterpolantFactoryMethodDiscrete:return 2300;case this.InterpolantFactoryMethodLinear:return 2301;case this.InterpolantFactoryMethodSmooth:return 2302}},getValueSize:function(){return this.values.length/this.times.length},shift:function(t){if(0!==t)for(var e=this.times,i=0,n=e.length;i!==n;++i)e[i]+=t;return this},scale:function(t){if(1!==t)for(var e=this.times,i=0,n=e.length;i!==n;++i)e[i]*=t;return this},trim:function(t,e){for(var i=this.times,n=i.length,r=0,a=n-1;r!==n&&i[r]<t;)++r;for(;-1!==a&&i[a]>e;)--a;if(++a,0!==r||a!==n){r>=a&&(a=Math.max(a,1),r=a-1);var o=this.getValueSize();this.times=Gs.arraySlice(i,r,a),this.values=Gs.arraySlice(this.values,r*o,a*o)}return this},validate:function(){var t=!0,e=this.getValueSize();e-Math.floor(e)!=0&&(console.error(\"THREE.KeyframeTrack: Invalid value size in track.\",this),t=!1);var i=this.times,n=this.values,r=i.length;0===r&&(console.error(\"THREE.KeyframeTrack: Track is empty.\",this),t=!1);for(var a=null,o=0;o!==r;o++){var s=i[o];if(\"number\"==typeof s&&isNaN(s)){console.error(\"THREE.KeyframeTrack: Time is not a valid number.\",this,o,s),t=!1;break}if(null!==a&&a>s){console.error(\"THREE.KeyframeTrack: Out of order keys.\",this,o,s,a),t=!1;break}a=s}if(void 0!==n&&Gs.isTypedArray(n))for(var o=0,c=n.length;o!==c;++o){var h=n[o];if(isNaN(h)){console.error(\"THREE.KeyframeTrack: Value is not a valid number.\",this,o,h),t=!1;break}}return t},optimize:function(){for(var t=this.times,e=this.values,i=this.getValueSize(),n=2302===this.getInterpolation(),r=1,a=t.length-1,o=1;o<a;++o){var s=!1,c=t[o];if(c!==t[o+1]&&(1!==o||c!==c[0]))if(n)s=!0;else for(var h=o*i,l=h-i,u=h+i,p=0;p!==i;++p){var d=e[h+p];if(d!==e[l+p]||d!==e[u+p]){s=!0;break}}if(s){if(o!==r){t[r]=t[o]\n;for(var f=o*i,m=r*i,p=0;p!==i;++p)e[m+p]=e[f+p]}++r}}if(a>0){t[r]=t[a];for(var f=a*i,m=r*i,p=0;p!==i;++p)e[m+p]=e[f+p];++r}return r!==t.length&&(this.times=Gs.arraySlice(t,0,r),this.values=Gs.arraySlice(e,0,r*i)),this}}),ln.prototype=Object.assign(Object.create(hn.prototype),{constructor:ln,ValueTypeName:\"vector\"}),Object.assign(un,{parse:function(t){for(var e=[],i=t.tracks,n=1/(t.fps||1),r=0,a=i.length;r!==a;++r)e.push(hn.parse(i[r]).scale(n));return new un(t.name,t.duration,e)},toJSON:function(t){for(var e=[],i=t.tracks,n={name:t.name,duration:t.duration,tracks:e},r=0,a=i.length;r!==a;++r)e.push(hn.toJSON(i[r]));return n},CreateFromMorphTargetSequence:function(t,e,i,n){for(var r=e.length,a=[],o=0;o<r;o++){var s=[],c=[];s.push((o+r-1)%r,o,(o+1)%r),c.push(0,1,0);var h=Gs.getKeyframeOrder(s);s=Gs.sortedArray(s,1,h),c=Gs.sortedArray(c,1,h),n||0!==s[0]||(s.push(r),c.push(c[0])),a.push(new an(\".morphTargetInfluences[\"+e[o].name+\"]\",s,c).scale(1/i))}return new un(t,-1,a)},findByName:function(t,e){var i=t;if(!Array.isArray(t)){var n=t;i=n.geometry&&n.geometry.animations||n.animations}for(var r=0;r<i.length;r++)if(i[r].name===e)return i[r];return null},CreateClipsFromMorphTargetSequences:function(t,e,i){for(var n={},r=/^([\\w-]*?)([\\d]+)$/,a=0,o=t.length;a<o;a++){var s=t[a],c=s.name.match(r);if(c&&c.length>1){var h=c[1],l=n[h];l||(n[h]=l=[]),l.push(s)}}var u=[];for(var h in n)u.push(un.CreateFromMorphTargetSequence(h,n[h],e,i));return u},parseAnimation:function(t,e){if(!t)return console.error(\"THREE.AnimationClip: No animation in JSONLoader data.\"),null;for(var i=function(t,e,i,n,r){if(0!==i.length){var a=[],o=[];Gs.flattenJSON(i,a,o,n),0!==a.length&&r.push(new t(e,a,o))}},n=[],r=t.name||\"default\",a=t.length||-1,o=t.fps||30,s=t.hierarchy||[],c=0;c<s.length;c++){var h=s[c].keys;if(h&&0!==h.length)if(h[0].morphTargets){for(var l={},u=0;u<h.length;u++)if(h[u].morphTargets)for(var p=0;p<h[u].morphTargets.length;p++)l[h[u].morphTargets[p]]=-1;for(var d in l){for(var f=[],m=[],p=0;p!==h[u].morphTargets.length;++p){var g=h[u];f.push(g.time),m.push(g.morphTarget===d?1:0)}n.push(new an(\".morphTargetInfluence[\"+d+\"]\",f,m))}a=l.length*(o||1)}else{var v=\".bones[\"+e[c].name+\"]\";i(ln,v+\".position\",h,\"pos\",n),i(nn,v+\".quaternion\",h,\"rot\",n),i(ln,v+\".scale\",h,\"scl\",n)}}return 0===n.length?null:new un(r,a,n)}}),Object.assign(un.prototype,{resetDuration:function(){for(var t=this.tracks,e=0,i=0,n=t.length;i!==n;++i){var r=this.tracks[i];e=Math.max(e,r.times[r.times.length-1])}this.duration=e},trim:function(){for(var t=0;t<this.tracks.length;t++)this.tracks[t].trim(0,this.duration);return this},optimize:function(){for(var t=0;t<this.tracks.length;t++)this.tracks[t].optimize();return this}}),Object.assign(pn.prototype,{load:function(t,e,i,n){var r=this;new Ni(r.manager).load(t,function(t){e(r.parse(JSON.parse(t)))},i,n)},setTextures:function(t){this.textures=t},parse:function(t){function e(t){return void 0===n[t]&&console.warn(\"THREE.MaterialLoader: Undefined texture\",t),n[t]}var n=this.textures,r=new Ns[t.type];if(void 0!==t.uuid&&(r.uuid=t.uuid),void 0!==t.name&&(r.name=t.name),void 0!==t.color&&r.color.setHex(t.color),void 0!==t.roughness&&(r.roughness=t.roughness),void 0!==t.metalness&&(r.metalness=t.metalness),void 0!==t.emissive&&r.emissive.setHex(t.emissive),void 0!==t.specular&&r.specular.setHex(t.specular),void 0!==t.shininess&&(r.shininess=t.shininess),void 0!==t.clearCoat&&(r.clearCoat=t.clearCoat),void 0!==t.clearCoatRoughness&&(r.clearCoatRoughness=t.clearCoatRoughness),void 0!==t.uniforms&&(r.uniforms=t.uniforms),void 0!==t.vertexShader&&(r.vertexShader=t.vertexShader),void 0!==t.fragmentShader&&(r.fragmentShader=t.fragmentShader),void 0!==t.vertexColors&&(r.vertexColors=t.vertexColors),void 0!==t.fog&&(r.fog=t.fog),void 0!==t.flatShading&&(r.flatShading=t.flatShading),void 0!==t.blending&&(r.blending=t.blending),void 0!==t.side&&(r.side=t.side),void 0!==t.opacity&&(r.opacity=t.opacity),void 0!==t.transparent&&(r.transparent=t.transparent),void 0!==t.alphaTest&&(r.alphaTest=t.alphaTest),void 0!==t.depthTest&&(r.depthTest=t.depthTest),void 0!==t.depthWrite&&(r.depthWrite=t.depthWrite),void 0!==t.colorWrite&&(r.colorWrite=t.colorWrite),void 0!==t.wireframe&&(r.wireframe=t.wireframe),void 0!==t.wireframeLinewidth&&(r.wireframeLinewidth=t.wireframeLinewidth),void 0!==t.wireframeLinecap&&(r.wireframeLinecap=t.wireframeLinecap),void 0!==t.wireframeLinejoin&&(r.wireframeLinejoin=t.wireframeLinejoin),void 0!==t.rotation&&(r.rotation=t.rotation),1!==t.linewidth&&(r.linewidth=t.linewidth),void 0!==t.dashSize&&(r.dashSize=t.dashSize),void 0!==t.gapSize&&(r.gapSize=t.gapSize),void 0!==t.scale&&(r.scale=t.scale),void 0!==t.skinning&&(r.skinning=t.skinning),void 0!==t.morphTargets&&(r.morphTargets=t.morphTargets),void 0!==t.dithering&&(r.dithering=t.dithering),void 0!==t.visible&&(r.visible=t.visible),void 0!==t.userData&&(r.userData=t.userData),void 0!==t.shading&&(r.flatShading=1===t.shading),void 0!==t.size&&(r.size=t.size),void 0!==t.sizeAttenuation&&(r.sizeAttenuation=t.sizeAttenuation),void 0!==t.map&&(r.map=e(t.map)),void 0!==t.alphaMap&&(r.alphaMap=e(t.alphaMap),r.transparent=!0),void 0!==t.bumpMap&&(r.bumpMap=e(t.bumpMap)),void 0!==t.bumpScale&&(r.bumpScale=t.bumpScale),void 0!==t.normalMap&&(r.normalMap=e(t.normalMap)),void 0!==t.normalScale){var a=t.normalScale;!1===Array.isArray(a)&&(a=[a,a]),r.normalScale=(new i).fromArray(a)}return void 0!==t.displacementMap&&(r.displacementMap=e(t.displacementMap)),void 0!==t.displacementScale&&(r.displacementScale=t.displacementScale),void 0!==t.displacementBias&&(r.displacementBias=t.displacementBias),void 0!==t.roughnessMap&&(r.roughnessMap=e(t.roughnessMap)),void 0!==t.metalnessMap&&(r.metalnessMap=e(t.metalnessMap)),void 0!==t.emissiveMap&&(r.emissiveMap=e(t.emissiveMap)),void 0!==t.emissiveIntensity&&(r.emissiveIntensity=t.emissiveIntensity),void 0!==t.specularMap&&(r.specularMap=e(t.specularMap)),void 0!==t.envMap&&(r.envMap=e(t.envMap)),void 0!==t.reflectivity&&(r.reflectivity=t.reflectivity),void 0!==t.lightMap&&(r.lightMap=e(t.lightMap)),void 0!==t.lightMapIntensity&&(r.lightMapIntensity=t.lightMapIntensity),void 0!==t.aoMap&&(r.aoMap=e(t.aoMap)),void 0!==t.aoMapIntensity&&(r.aoMapIntensity=t.aoMapIntensity),void 0!==t.gradientMap&&(r.gradientMap=e(t.gradientMap)),r}}),Object.assign(dn.prototype,{load:function(t,e,i,n){var r=this;new Ni(r.manager).load(t,function(t){e(r.parse(JSON.parse(t)))},i,n)},parse:function(t){var e=new St,i=t.data.index;if(void 0!==i){var n=new Hs[i.type](i.array);e.setIndex(new ft(n,1))}var r=t.data.attributes;for(var o in r){var s=r[o],n=new Hs[s.type](s.array);e.addAttribute(o,new ft(n,s.itemSize,s.normalized))}var c=t.data.groups||t.data.drawcalls||t.data.offsets;if(void 0!==c)for(var h=0,l=c.length;h!==l;++h){var u=c[h];e.addGroup(u.start,u.count,u.materialIndex)}var p=t.data.boundingSphere;if(void 0!==p){var d=new a;void 0!==p.center&&d.fromArray(p.center),e.boundingSphere=new it(d,p.radius)}return e}});var Hs={Int8Array:Int8Array,Uint8Array:Uint8Array,Uint8ClampedArray:\"undefined\"!=typeof Uint8ClampedArray?Uint8ClampedArray:Uint8Array,Int16Array:Int16Array,Uint16Array:Uint16Array,Int32Array:Int32Array,Uint32Array:Uint32Array,Float32Array:Float32Array,Float64Array:Float64Array};fn.Handlers={handlers:[],add:function(t,e){this.handlers.push(t,e)},get:function(t){for(var e=this.handlers,i=0,n=e.length;i<n;i+=2){var r=e[i],a=e[i+1];if(r.test(t))return a}return null}},Object.assign(fn.prototype,{crossOrigin:void 0,extractUrlBase:function(t){var e=t.split(\"/\");return 1===e.length?\"./\":(e.pop(),e.join(\"/\")+\"/\")},initMaterials:function(t,e,i){for(var n=[],r=0;r<t.length;++r)n[r]=this.createMaterial(t[r],e,i);return n},createMaterial:function(){var t={NoBlending:Ta,NormalBlending:Sa,AdditiveBlending:Aa,SubtractiveBlending:Ra,MultiplyBlending:La,CustomBlending:Pa},e=new q,i=new Hi,n=new pn;return function(r,a,o){function s(t,e,n,r,s){var h,l=a+t,u=fn.Handlers.get(l);null!==u?h=u.load(l):(i.setCrossOrigin(o),h=i.load(l)),void 0!==e&&(h.repeat.fromArray(e),1!==e[0]&&(h.wrapS=vo),1!==e[1]&&(h.wrapT=vo)),void 0!==n&&h.offset.fromArray(n),void 0!==r&&(\"repeat\"===r[0]&&(h.wrapS=vo),\"mirror\"===r[0]&&(h.wrapS=xo),\"repeat\"===r[1]&&(h.wrapT=vo),\"mirror\"===r[1]&&(h.wrapT=xo)),void 0!==s&&(h.anisotropy=s);var p=ms.generateUUID();return c[p]=h,p}var c={},h={uuid:ms.generateUUID(),type:\"MeshLambertMaterial\"};for(var l in r){var u=r[l];switch(l){case\"DbgColor\":case\"DbgIndex\":case\"opticalDensity\":case\"illumination\":break;case\"DbgName\":h.name=u;break;case\"blending\":h.blending=t[u];break;case\"colorAmbient\":case\"mapAmbient\":console.warn(\"THREE.Loader.createMaterial:\",l,\"is no longer supported.\");break;case\"colorDiffuse\":h.color=e.fromArray(u).getHex();break;case\"colorSpecular\":h.specular=e.fromArray(u).getHex();break;case\"colorEmissive\":h.emissive=e.fromArray(u).getHex();break;case\"specularCoef\":h.shininess=u;break;case\"shading\":\"basic\"===u.toLowerCase()&&(h.type=\"MeshBasicMaterial\"),\"phong\"===u.toLowerCase()&&(h.type=\"MeshPhongMaterial\"),\"standard\"===u.toLowerCase()&&(h.type=\"MeshStandardMaterial\");break;case\"mapDiffuse\":h.map=s(u,r.mapDiffuseRepeat,r.mapDiffuseOffset,r.mapDiffuseWrap,r.mapDiffuseAnisotropy);break;case\"mapDiffuseRepeat\":case\"mapDiffuseOffset\":case\"mapDiffuseWrap\":case\"mapDiffuseAnisotropy\":break;case\"mapEmissive\":h.emissiveMap=s(u,r.mapEmissiveRepeat,r.mapEmissiveOffset,r.mapEmissiveWrap,r.mapEmissiveAnisotropy);break;case\"mapEmissiveRepeat\":case\"mapEmissiveOffset\":case\"mapEmissiveWrap\":case\"mapEmissiveAnisotropy\":break;case\"mapLight\":h.lightMap=s(u,r.mapLightRepeat,r.mapLightOffset,r.mapLightWrap,r.mapLightAnisotropy);break;case\"mapLightRepeat\":case\"mapLightOffset\":case\"mapLightWrap\":case\"mapLightAnisotropy\":break;case\"mapAO\":h.aoMap=s(u,r.mapAORepeat,r.mapAOOffset,r.mapAOWrap,r.mapAOAnisotropy);break;case\"mapAORepeat\":case\"mapAOOffset\":case\"mapAOWrap\":case\"mapAOAnisotropy\":break;case\"mapBump\":h.bumpMap=s(u,r.mapBumpRepeat,r.mapBumpOffset,r.mapBumpWrap,r.mapBumpAnisotropy);break;case\"mapBumpScale\":h.bumpScale=u;break;case\"mapBumpRepeat\":case\"mapBumpOffset\":case\"mapBumpWrap\":case\"mapBumpAnisotropy\":break;case\"mapNormal\":h.normalMap=s(u,r.mapNormalRepeat,r.mapNormalOffset,r.mapNormalWrap,r.mapNormalAnisotropy);break;case\"mapNormalFactor\":h.normalScale=[u,u];break;case\"mapNormalRepeat\":case\"mapNormalOffset\":case\"mapNormalWrap\":case\"mapNormalAnisotropy\":break;case\"mapSpecular\":h.specularMap=s(u,r.mapSpecularRepeat,r.mapSpecularOffset,r.mapSpecularWrap,r.mapSpecularAnisotropy);break;case\"mapSpecularRepeat\":case\"mapSpecularOffset\":case\"mapSpecularWrap\":case\"mapSpecularAnisotropy\":break;case\"mapMetalness\":h.metalnessMap=s(u,r.mapMetalnessRepeat,r.mapMetalnessOffset,r.mapMetalnessWrap,r.mapMetalnessAnisotropy);break;case\"mapMetalnessRepeat\":case\"mapMetalnessOffset\":case\"mapMetalnessWrap\":case\"mapMetalnessAnisotropy\":break;case\"mapRoughness\":h.roughnessMap=s(u,r.mapRoughnessRepeat,r.mapRoughnessOffset,r.mapRoughnessWrap,r.mapRoughnessAnisotropy);break;case\"mapRoughnessRepeat\":case\"mapRoughnessOffset\":case\"mapRoughnessWrap\":case\"mapRoughnessAnisotropy\":break;case\"mapAlpha\":h.alphaMap=s(u,r.mapAlphaRepeat,r.mapAlphaOffset,r.mapAlphaWrap,r.mapAlphaAnisotropy);break;case\"mapAlphaRepeat\":case\"mapAlphaOffset\":case\"mapAlphaWrap\":case\"mapAlphaAnisotropy\":break;case\"flipSided\":h.side=ba;break;case\"doubleSided\":h.side=_a;break;case\"transparency\":console.warn(\"THREE.Loader.createMaterial: transparency has been renamed to opacity\"),h.opacity=u;break;case\"depthTest\":case\"depthWrite\":case\"colorWrite\":case\"opacity\":case\"reflectivity\":case\"transparent\":case\"visible\":case\"wireframe\":h[l]=u;break;case\"vertexColors\":!0===u&&(h.vertexColors=Ea),\"face\"===u&&(h.vertexColors=Ma);break;default:console.error(\"THREE.Loader.createMaterial: Unsupported\",l,u)}}return\"MeshBasicMaterial\"===h.type&&delete h.emissive,\"MeshPhongMaterial\"!==h.type&&delete h.specular,h.opacity<1&&(h.transparent=!0),n.setTextures(c),n.parse(h)}}()}),Object.assign(mn.prototype,{load:function(t,e,i,n){var r=this,a=this.texturePath&&\"string\"==typeof this.texturePath?this.texturePath:fn.prototype.extractUrlBase(t),o=new Ni(this.manager);o.setWithCredentials(this.withCredentials),o.load(t,function(i){var n=JSON.parse(i),o=n.metadata;if(void 0!==o){var s=o.type;if(void 0!==s){if(\"object\"===s.toLowerCase())return void console.error(\"THREE.JSONLoader: \"+t+\" should be loaded with THREE.ObjectLoader instead.\");if(\"scene\"===s.toLowerCase())return void console.error(\"THREE.JSONLoader: \"+t+\" should be loaded with THREE.SceneLoader instead.\")}}var c=r.parse(n,a);e(c.geometry,c.materials)},i,n)},setTexturePath:function(t){this.texturePath=t},parse:function(){function t(t,e){function n(t,e){return t&1<<e}var r,o,s,c,h,l,u,p,d,f,m,g,v,y,x,b,_,w,M,E,T,S,A,R,L,P,C,I=t.faces,U=t.vertices,D=t.normals,O=t.colors,N=t.scale,F=0;if(void 0!==t.uvs){for(r=0;r<t.uvs.length;r++)t.uvs[r].length&&F++;for(r=0;r<F;r++)e.faceVertexUvs[r]=[]}for(c=0,h=U.length;c<h;)w=new a,w.x=U[c++]*N,w.y=U[c++]*N,w.z=U[c++]*N,e.vertices.push(w);for(c=0,h=I.length;c<h;)if(f=I[c++],m=n(f,0),g=n(f,1),v=n(f,3),y=n(f,4),x=n(f,5),b=n(f,6),_=n(f,7),m){if(E=new pt,E.a=I[c],E.b=I[c+1],E.c=I[c+3],T=new pt,T.a=I[c+1],T.b=I[c+2],T.c=I[c+3],c+=4,g&&(d=I[c++],E.materialIndex=d,T.materialIndex=d),s=e.faces.length,v)for(r=0;r<F;r++)for(R=t.uvs[r],e.faceVertexUvs[r][s]=[],e.faceVertexUvs[r][s+1]=[],o=0;o<4;o++)p=I[c++],P=R[2*p],C=R[2*p+1],L=new i(P,C),2!==o&&e.faceVertexUvs[r][s].push(L),0!==o&&e.faceVertexUvs[r][s+1].push(L);if(y&&(u=3*I[c++],E.normal.set(D[u++],D[u++],D[u]),T.normal.copy(E.normal)),x)for(r=0;r<4;r++)u=3*I[c++],A=new a(D[u++],D[u++],D[u]),2!==r&&E.vertexNormals.push(A),0!==r&&T.vertexNormals.push(A);if(b&&(l=I[c++],S=O[l],E.color.setHex(S),T.color.setHex(S)),_)for(r=0;r<4;r++)l=I[c++],S=O[l],2!==r&&E.vertexColors.push(new q(S)),0!==r&&T.vertexColors.push(new q(S));e.faces.push(E),e.faces.push(T)}else{if(M=new pt,M.a=I[c++],M.b=I[c++],M.c=I[c++],g&&(d=I[c++],M.materialIndex=d),s=e.faces.length,v)for(r=0;r<F;r++)for(R=t.uvs[r],e.faceVertexUvs[r][s]=[],o=0;o<3;o++)p=I[c++],P=R[2*p],C=R[2*p+1],L=new i(P,C),e.faceVertexUvs[r][s].push(L);if(y&&(u=3*I[c++],M.normal.set(D[u++],D[u++],D[u])),x)for(r=0;r<3;r++)u=3*I[c++],A=new a(D[u++],D[u++],D[u]),M.vertexNormals.push(A);if(b&&(l=I[c++],M.color.setHex(O[l])),_)for(r=0;r<3;r++)l=I[c++],M.vertexColors.push(new q(O[l]));e.faces.push(M)}}function e(t,e){var i=void 0!==t.influencesPerVertex?t.influencesPerVertex:2;if(t.skinWeights)for(var n=0,r=t.skinWeights.length;n<r;n+=i){var a=t.skinWeights[n],o=i>1?t.skinWeights[n+1]:0,s=i>2?t.skinWeights[n+2]:0,h=i>3?t.skinWeights[n+3]:0;e.skinWeights.push(new c(a,o,s,h))}if(t.skinIndices)for(var n=0,r=t.skinIndices.length;n<r;n+=i){var l=t.skinIndices[n],u=i>1?t.skinIndices[n+1]:0,p=i>2?t.skinIndices[n+2]:0,d=i>3?t.skinIndices[n+3]:0;e.skinIndices.push(new c(l,u,p,d))}e.bones=t.bones,e.bones&&e.bones.length>0&&(e.skinWeights.length!==e.skinIndices.length||e.skinIndices.length!==e.vertices.length)&&console.warn(\"When skinning, number of vertices (\"+e.vertices.length+\"), skinIndices (\"+e.skinIndices.length+\"), and skinWeights (\"+e.skinWeights.length+\") should match.\")}function n(t,e){var i=t.scale;if(void 0!==t.morphTargets)for(var n=0,r=t.morphTargets.length;n<r;n++){e.morphTargets[n]={},e.morphTargets[n].name=t.morphTargets[n].name,e.morphTargets[n].vertices=[];for(var o=e.morphTargets[n].vertices,s=t.morphTargets[n].vertices,c=0,h=s.length;c<h;c+=3){var l=new a;l.x=s[c]*i,l.y=s[c+1]*i,l.z=s[c+2]*i,o.push(l)}}if(void 0!==t.morphColors&&t.morphColors.length>0){console.warn('THREE.JSONLoader: \"morphColors\" no longer supported. Using them as face colors.');for(var u=e.faces,p=t.morphColors[0].colors,n=0,r=u.length;n<r;n++)u[n].color.fromArray(p,3*n)}}function r(t,e){var i=[],n=[];void 0!==t.animation&&n.push(t.animation),void 0!==t.animations&&(t.animations.length?n=n.concat(t.animations):n.push(t.animations));for(var r=0;r<n.length;r++){var a=un.parseAnimation(n[r],e.bones);a&&i.push(a)}if(e.morphTargets){var o=un.CreateClipsFromMorphTargetSequences(e.morphTargets,10);i=i.concat(o)}i.length>0&&(e.animations=i)}return function(i,a){void 0!==i.data&&(i=i.data),void 0!==i.scale?i.scale=1/i.scale:i.scale=1;var o=new dt;return t(i,o),e(i,o),n(i,o),r(i,o),o.computeFaceNormals(),o.computeBoundingSphere(),void 0===i.materials||0===i.materials.length?{geometry:o}:{geometry:o,materials:fn.prototype.initMaterials(i.materials,a,this.crossOrigin)}}}()}),Object.assign(gn.prototype,{load:function(t,e,i,n){\"\"===this.texturePath&&(this.texturePath=t.substring(0,t.lastIndexOf(\"/\")+1));var r=this;new Ni(r.manager).load(t,function(i){var a=null;try{a=JSON.parse(i)}catch(e){return void 0!==n&&n(e),void console.error(\"THREE:ObjectLoader: Can't parse \"+t+\".\",e.message)}var o=a.metadata;if(void 0===o||void 0===o.type||\"geometry\"===o.type.toLowerCase())return void console.error(\"THREE.ObjectLoader: Can't load \"+t+\". Use THREE.JSONLoader instead.\");r.parse(a,e)},i,n)},setTexturePath:function(t){this.texturePath=t},setCrossOrigin:function(t){this.crossOrigin=t},parse:function(t,e){var i=this.parseGeometries(t.geometries),n=this.parseImages(t.images,function(){void 0!==e&&e(o)}),r=this.parseTextures(t.textures,n),a=this.parseMaterials(t.materials,r),o=this.parseObject(t.object,i,a);return t.animations&&(o.animations=this.parseAnimations(t.animations)),void 0!==t.images&&0!==t.images.length||void 0!==e&&e(o),o},parseGeometries:function(t){var e={};if(void 0!==t)for(var i=new mn,n=new dn,r=0,a=t.length;r<a;r++){var o,s=t[r];switch(s.type){case\"PlaneGeometry\":case\"PlaneBufferGeometry\":o=new Os[s.type](s.width,s.height,s.widthSegments,s.heightSegments);break;case\"BoxGeometry\":case\"BoxBufferGeometry\":case\"CubeGeometry\":o=new Os[s.type](s.width,s.height,s.depth,s.widthSegments,s.heightSegments,s.depthSegments);break;case\"CircleGeometry\":case\"CircleBufferGeometry\":o=new Os[s.type](s.radius,s.segments,s.thetaStart,s.thetaLength);break;case\"CylinderGeometry\":case\"CylinderBufferGeometry\":o=new Os[s.type](s.radiusTop,s.radiusBottom,s.height,s.radialSegments,s.heightSegments,s.openEnded,s.thetaStart,s.thetaLength);break;case\"ConeGeometry\":case\"ConeBufferGeometry\":o=new Os[s.type](s.radius,s.height,s.radialSegments,s.heightSegments,s.openEnded,s.thetaStart,s.thetaLength);break;case\"SphereGeometry\":case\"SphereBufferGeometry\":o=new Os[s.type](s.radius,s.widthSegments,s.heightSegments,s.phiStart,s.phiLength,s.thetaStart,s.thetaLength);break;case\"DodecahedronGeometry\":case\"DodecahedronBufferGeometry\":case\"IcosahedronGeometry\":case\"IcosahedronBufferGeometry\":case\"OctahedronGeometry\":case\"OctahedronBufferGeometry\":case\"TetrahedronGeometry\":case\"TetrahedronBufferGeometry\":o=new Os[s.type](s.radius,s.detail);break;case\"RingGeometry\":case\"RingBufferGeometry\":o=new Os[s.type](s.innerRadius,s.outerRadius,s.thetaSegments,s.phiSegments,s.thetaStart,s.thetaLength);break;case\"TorusGeometry\":case\"TorusBufferGeometry\":o=new Os[s.type](s.radius,s.tube,s.radialSegments,s.tubularSegments,s.arc);break;case\"TorusKnotGeometry\":case\"TorusKnotBufferGeometry\":o=new Os[s.type](s.radius,s.tube,s.tubularSegments,s.radialSegments,s.p,s.q);break;case\"LatheGeometry\":case\"LatheBufferGeometry\":o=new Os[s.type](s.points,s.segments,s.phiStart,s.phiLength);break;case\"PolyhedronGeometry\":case\"PolyhedronBufferGeometry\":o=new Os[s.type](s.vertices,s.indices,s.radius,s.details);break;case\"BufferGeometry\":o=n.parse(s);break;case\"Geometry\":o=i.parse(s,this.texturePath).geometry;break;default:console.warn('THREE.ObjectLoader: Unsupported geometry type \"'+s.type+'\"');continue}o.uuid=s.uuid,void 0!==s.name&&(o.name=s.name),e[s.uuid]=o}return e},parseMaterials:function(t,e){var i={};if(void 0!==t){var n=new pn;n.setTextures(e);for(var r=0,a=t.length;r<a;r++){var o=t[r];if(\"MultiMaterial\"===o.type){for(var s=[],c=0;c<o.materials.length;c++)s.push(n.parse(o.materials[c]));i[o.uuid]=s}else i[o.uuid]=n.parse(o)}}return i},parseAnimations:function(t){for(var e=[],i=0;i<t.length;i++){var n=un.parse(t[i]);e.push(n)}return e},parseImages:function(t,e){var i=this,n={};if(void 0!==t&&t.length>0){var r=new Oi(e),a=new zi(r);a.setCrossOrigin(this.crossOrigin);for(var o=0,s=t.length;o<s;o++){var c=t[o],h=/^(\\/\\/)|([a-z]+:(\\/\\/)?)/i.test(c.url)?c.url:i.texturePath+c.url;n[c.uuid]=function(t){return i.manager.itemStart(t),a.load(t,function(){i.manager.itemEnd(t)},void 0,function(){i.manager.itemEnd(t),i.manager.itemError(t)})}(h)}}return n},parseTextures:function(t,e){function i(t,e){return\"number\"==typeof t?t:(console.warn(\"THREE.ObjectLoader.parseTexture: Constant should be in numeric form.\",t),e[t])}var n={};if(void 0!==t)for(var r=0,a=t.length;r<a;r++){var o=t[r];void 0===o.image&&console.warn('THREE.ObjectLoader: No \"image\" specified for',o.uuid),void 0===e[o.image]&&console.warn(\"THREE.ObjectLoader: Undefined image\",o.image);var c=new s(e[o.image]);c.needsUpdate=!0,c.uuid=o.uuid,void 0!==o.name&&(c.name=o.name),void 0!==o.mapping&&(c.mapping=i(o.mapping,Vs)),void 0!==o.offset&&c.offset.fromArray(o.offset),void 0!==o.repeat&&c.repeat.fromArray(o.repeat),void 0!==o.center&&c.center.fromArray(o.center),void 0!==o.rotation&&(c.rotation=o.rotation),void 0!==o.wrap&&(c.wrapS=i(o.wrap[0],ks),c.wrapT=i(o.wrap[1],ks)),void 0!==o.minFilter&&(c.minFilter=i(o.minFilter,js)),void 0!==o.magFilter&&(c.magFilter=i(o.magFilter,js)),void 0!==o.anisotropy&&(c.anisotropy=o.anisotropy),void 0!==o.flipY&&(c.flipY=o.flipY),n[o.uuid]=c}return n},parseObject:function(){var t=new n;return function(e,i,n){function r(t){return void 0===i[t]&&console.warn(\"THREE.ObjectLoader: Undefined geometry\",t),i[t]}function a(t){if(void 0!==t){if(Array.isArray(t)){for(var e=[],i=0,r=t.length;i<r;i++){var a=t[i];void 0===n[a]&&console.warn(\"THREE.ObjectLoader: Undefined material\",a),e.push(n[a])}return e}return void 0===n[t]&&console.warn(\"THREE.ObjectLoader: Undefined material\",t),n[t]}}var o;switch(e.type){case\"Scene\":o=new Ee,void 0!==e.background&&Number.isInteger(e.background)&&(o.background=new q(e.background)),void 0!==e.fog&&(\"Fog\"===e.fog.type?o.fog=new Me(e.fog.color,e.fog.near,e.fog.far):\"FogExp2\"===e.fog.type&&(o.fog=new we(e.fog.color,e.fog.density)));break;case\"PerspectiveCamera\":o=new me(e.fov,e.aspect,e.near,e.far),void 0!==e.focus&&(o.focus=e.focus),void 0!==e.zoom&&(o.zoom=e.zoom),void 0!==e.filmGauge&&(o.filmGauge=e.filmGauge),void 0!==e.filmOffset&&(o.filmOffset=e.filmOffset),void 0!==e.view&&(o.view=Object.assign({},e.view));break;case\"OrthographicCamera\":o=new ut(e.left,e.right,e.top,e.bottom,e.near,e.far);break;case\"AmbientLight\":o=new Ji(e.color,e.intensity);break;case\"DirectionalLight\":o=new Zi(e.color,e.intensity);break;case\"PointLight\":o=new qi(e.color,e.intensity,e.distance,e.decay);break;case\"RectAreaLight\":o=new Qi(e.color,e.intensity,e.width,e.height);break;case\"SpotLight\":o=new Xi(e.color,e.intensity,e.distance,e.angle,e.penumbra,e.decay);break;case\"HemisphereLight\":o=new ki(e.color,e.groundColor,e.intensity);break;case\"SkinnedMesh\":console.warn(\"THREE.ObjectLoader.parseObject() does not support SkinnedMesh yet.\");case\"Mesh\":var s=r(e.geometry),c=a(e.material);o=s.bones&&s.bones.length>0?new Ce(s,c):new Nt(s,c);break;case\"LOD\":o=new Re;break;case\"Line\":o=new Ue(r(e.geometry),a(e.material),e.mode);break;case\"LineLoop\":o=new Oe(r(e.geometry),a(e.material));break;case\"LineSegments\":o=new De(r(e.geometry),a(e.material));break;case\"PointCloud\":case\"Points\":o=new Fe(r(e.geometry),a(e.material));break;case\"Sprite\":o=new Ae(a(e.material));break;case\"Group\":o=new Be;break;default:o=new ht}if(o.uuid=e.uuid,void 0!==e.name&&(o.name=e.name),void 0!==e.matrix?(t.fromArray(e.matrix),t.decompose(o.position,o.quaternion,o.scale)):(void 0!==e.position&&o.position.fromArray(e.position),void 0!==e.rotation&&o.rotation.fromArray(e.rotation),void 0!==e.quaternion&&o.quaternion.fromArray(e.quaternion),void 0!==e.scale&&o.scale.fromArray(e.scale)),void 0!==e.castShadow&&(o.castShadow=e.castShadow),void 0!==e.receiveShadow&&(o.receiveShadow=e.receiveShadow),e.shadow&&(void 0!==e.shadow.bias&&(o.shadow.bias=e.shadow.bias),void 0!==e.shadow.radius&&(o.shadow.radius=e.shadow.radius),void 0!==e.shadow.mapSize&&o.shadow.mapSize.fromArray(e.shadow.mapSize),void 0!==e.shadow.camera&&(o.shadow.camera=this.parseObject(e.shadow.camera))),void 0!==e.visible&&(o.visible=e.visible),void 0!==e.userData&&(o.userData=e.userData),void 0!==e.children)for(var h=e.children,l=0;l<h.length;l++)o.add(this.parseObject(h[l],i,n));if(\"LOD\"===e.type)for(var u=e.levels,p=0;p<u.length;p++){var d=u[p],f=o.getObjectByProperty(\"uuid\",d.object);void 0!==f&&o.addLevel(f,d.distance)}return o}}()});var Vs={UVMapping:300,CubeReflectionMapping:ho,CubeRefractionMapping:lo,EquirectangularReflectionMapping:uo,EquirectangularRefractionMapping:po,SphericalReflectionMapping:fo,CubeUVReflectionMapping:mo,CubeUVRefractionMapping:go},ks={RepeatWrapping:vo,ClampToEdgeWrapping:yo,MirroredRepeatWrapping:xo},js={NearestFilter:bo,NearestMipMapNearestFilter:_o,NearestMipMapLinearFilter:wo,LinearFilter:Mo,LinearMipMapNearestFilter:Eo,LinearMipMapLinearFilter:To};Object.assign(An.prototype,{getPoint:function(){return console.warn(\"THREE.Curve: .getPoint() not implemented.\"),null},getPointAt:function(t,e){var i=this.getUtoTmapping(t);return this.getPoint(i,e)},getPoints:function(t){void 0===t&&(t=5);for(var e=[],i=0;i<=t;i++)e.push(this.getPoint(i/t));return e},getSpacedPoints:function(t){void 0===t&&(t=5);for(var e=[],i=0;i<=t;i++)e.push(this.getPointAt(i/t));return e},getLength:function(){var t=this.getLengths();return t[t.length-1]},getLengths:function(t){if(void 0===t&&(t=this.arcLengthDivisions),this.cacheArcLengths&&this.cacheArcLengths.length===t+1&&!this.needsUpdate)return this.cacheArcLengths;this.needsUpdate=!1;var e,i,n=[],r=this.getPoint(0),a=0;for(n.push(0),i=1;i<=t;i++)e=this.getPoint(i/t),a+=e.distanceTo(r),n.push(a),r=e;return this.cacheArcLengths=n,n},updateArcLengths:function(){this.needsUpdate=!0,this.getLengths()},getUtoTmapping:function(t,e){var i,n=this.getLengths(),r=0,a=n.length;i=e||t*n[a-1];for(var o,s=0,c=a-1;s<=c;)if(r=Math.floor(s+(c-s)/2),(o=n[r]-i)<0)s=r+1;else{if(!(o>0)){c=r;break}c=r-1}if(r=c,n[r]===i)return r/(a-1);var h=n[r];return(r+(i-h)/(n[r+1]-h))/(a-1)},getTangent:function(t){var e=t-1e-4,i=t+1e-4;e<0&&(e=0),i>1&&(i=1);var n=this.getPoint(e);return this.getPoint(i).clone().sub(n).normalize()},getTangentAt:function(t){var e=this.getUtoTmapping(t);return this.getTangent(e)},computeFrenetFrames:function(t,e){var i,r,o,s=new a,c=[],h=[],l=[],u=new a,p=new n;for(i=0;i<=t;i++)r=i/t,c[i]=this.getTangentAt(r),c[i].normalize();h[0]=new a,l[0]=new a;var d=Number.MAX_VALUE,f=Math.abs(c[0].x),m=Math.abs(c[0].y),g=Math.abs(c[0].z);for(f<=d&&(d=f,s.set(1,0,0)),m<=d&&(d=m,s.set(0,1,0)),g<=d&&s.set(0,0,1),u.crossVectors(c[0],s).normalize(),h[0].crossVectors(c[0],u),l[0].crossVectors(c[0],h[0]),i=1;i<=t;i++)h[i]=h[i-1].clone(),l[i]=l[i-1].clone(),u.crossVectors(c[i-1],c[i]),u.length()>Number.EPSILON&&(u.normalize(),o=Math.acos(ms.clamp(c[i-1].dot(c[i]),-1,1)),h[i].applyMatrix4(p.makeRotationAxis(u,o))),l[i].crossVectors(c[i],h[i]);if(!0===e)for(o=Math.acos(ms.clamp(h[0].dot(h[t]),-1,1)),o/=t,c[0].dot(u.crossVectors(h[0],h[t]))>0&&(o=-o),i=1;i<=t;i++)h[i].applyMatrix4(p.makeRotationAxis(c[i],o*i)),l[i].crossVectors(c[i],h[i]);return{tangents:c,normals:h,binormals:l}},clone:function(){return(new this.constructor).copy(this)},copy:function(t){return this.arcLengthDivisions=t.arcLengthDivisions,this}}),Rn.prototype=Object.create(An.prototype),Rn.prototype.constructor=Rn,Rn.prototype.isLineCurve=!0,Rn.prototype.getPoint=function(t,e){var n=e||new i;return 1===t?n.copy(this.v2):(n.copy(this.v2).sub(this.v1),n.multiplyScalar(t).add(this.v1)),n},Rn.prototype.getPointAt=function(t,e){return this.getPoint(t,e)},Rn.prototype.getTangent=function(){return this.v2.clone().sub(this.v1).normalize()},Rn.prototype.copy=function(t){return An.prototype.copy.call(this,t),this.v1.copy(t.v1),this.v2.copy(t.v2),this},Ln.prototype=Object.assign(Object.create(An.prototype),{constructor:Ln,add:function(t){this.curves.push(t)},closePath:function(){var t=this.curves[0].getPoint(0),e=this.curves[this.curves.length-1].getPoint(1);t.equals(e)||this.curves.push(new Rn(e,t))},getPoint:function(t){for(var e=t*this.getLength(),i=this.getCurveLengths(),n=0;n<i.length;){if(i[n]>=e){var r=i[n]-e,a=this.curves[n],o=a.getLength(),s=0===o?0:1-r/o;return a.getPointAt(s)}n++}return null},getLength:function(){var t=this.getCurveLengths();return t[t.length-1]},updateArcLengths:function(){this.needsUpdate=!0,this.cacheLengths=null,this.getCurveLengths()},getCurveLengths:function(){if(this.cacheLengths&&this.cacheLengths.length===this.curves.length)return this.cacheLengths;for(var t=[],e=0,i=0,n=this.curves.length;i<n;i++)e+=this.curves[i].getLength(),t.push(e);return this.cacheLengths=t,t},getSpacedPoints:function(t){void 0===t&&(t=40);for(var e=[],i=0;i<=t;i++)e.push(this.getPoint(i/t));return this.autoClose&&e.push(e[0]),e},getPoints:function(t){t=t||12;for(var e,i=[],n=0,r=this.curves;n<r.length;n++)for(var a=r[n],o=a&&a.isEllipseCurve?2*t:a&&a.isLineCurve?1:a&&a.isSplineCurve?t*a.points.length:t,s=a.getPoints(o),c=0;c<s.length;c++){var h=s[c];e&&e.equals(h)||(i.push(h),e=h)}return this.autoClose&&i.length>1&&!i[i.length-1].equals(i[0])&&i.push(i[0]),i},copy:function(t){An.prototype.copy.call(this,t),this.curves=[];for(var e=0,i=t.curves.length;e<i;e++){var n=t.curves[e];this.curves.push(n.clone())}return this.autoClose=t.autoClose,this}}),Pn.prototype=Object.create(An.prototype),Pn.prototype.constructor=Pn,Pn.prototype.isEllipseCurve=!0,Pn.prototype.getPoint=function(t,e){for(var n=e||new i,r=2*Math.PI,a=this.aEndAngle-this.aStartAngle,o=Math.abs(a)<Number.EPSILON;a<0;)a+=r;for(;a>r;)a-=r;a<Number.EPSILON&&(a=o?0:r),!0!==this.aClockwise||o||(a===r?a=-r:a-=r);var s=this.aStartAngle+t*a,c=this.aX+this.xRadius*Math.cos(s),h=this.aY+this.yRadius*Math.sin(s);if(0!==this.aRotation){var l=Math.cos(this.aRotation),u=Math.sin(this.aRotation),p=c-this.aX,d=h-this.aY;c=p*l-d*u+this.aX,h=p*u+d*l+this.aY}return n.set(c,h)},Pn.prototype.copy=function(t){return An.prototype.copy.call(this,t),this.aX=t.aX,this.aY=t.aY,this.xRadius=t.xRadius,this.yRadius=t.yRadius,this.aStartAngle=t.aStartAngle,this.aEndAngle=t.aEndAngle,this.aClockwise=t.aClockwise,this.aRotation=t.aRotation,this},Cn.prototype=Object.create(An.prototype),Cn.prototype.constructor=Cn,Cn.prototype.isSplineCurve=!0,Cn.prototype.getPoint=function(t,e){var n=e||new i,r=this.points,a=(r.length-1)*t,o=Math.floor(a),s=a-o,c=r[0===o?o:o-1],h=r[o],l=r[o>r.length-2?r.length-1:o+1],u=r[o>r.length-3?r.length-1:o+2];return n.set(vn(s,c.x,h.x,l.x,u.x),vn(s,c.y,h.y,l.y,u.y)),n},Cn.prototype.copy=function(t){An.prototype.copy.call(this,t),this.points=[];for(var e=0,i=t.points.length;e<i;e++){var n=t.points[e];this.points.push(n.clone())}return this},In.prototype=Object.create(An.prototype),In.prototype.constructor=In,In.prototype.isCubicBezierCurve=!0,In.prototype.getPoint=function(t,e){var n=e||new i,r=this.v0,a=this.v1,o=this.v2,s=this.v3;return n.set(Sn(t,r.x,a.x,o.x,s.x),Sn(t,r.y,a.y,o.y,s.y)),n},In.prototype.copy=function(t){return An.prototype.copy.call(this,t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this.v3.copy(t.v3),this},Un.prototype=Object.create(An.prototype),Un.prototype.constructor=Un,Un.prototype.isQuadraticBezierCurve=!0,Un.prototype.getPoint=function(t,e){var n=e||new i,r=this.v0,a=this.v1,o=this.v2;return n.set(_n(t,r.x,a.x,o.x),_n(t,r.y,a.y,o.y)),n},Un.prototype.copy=function(t){return An.prototype.copy.call(this,t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this},Dn.prototype=Object.assign(Object.create(Ln.prototype),{constructor:Dn,setFromPoints:function(t){this.moveTo(t[0].x,t[0].y);for(var e=1,i=t.length;e<i;e++)this.lineTo(t[e].x,t[e].y)},moveTo:function(t,e){this.currentPoint.set(t,e)},lineTo:function(t,e){var n=new Rn(this.currentPoint.clone(),new i(t,e));this.curves.push(n),\nthis.currentPoint.set(t,e)},quadraticCurveTo:function(t,e,n,r){var a=new Un(this.currentPoint.clone(),new i(t,e),new i(n,r));this.curves.push(a),this.currentPoint.set(n,r)},bezierCurveTo:function(t,e,n,r,a,o){var s=new In(this.currentPoint.clone(),new i(t,e),new i(n,r),new i(a,o));this.curves.push(s),this.currentPoint.set(a,o)},splineThru:function(t){var e=[this.currentPoint.clone()].concat(t),i=new Cn(e);this.curves.push(i),this.currentPoint.copy(t[t.length-1])},arc:function(t,e,i,n,r,a){var o=this.currentPoint.x,s=this.currentPoint.y;this.absarc(t+o,e+s,i,n,r,a)},absarc:function(t,e,i,n,r,a){this.absellipse(t,e,i,i,n,r,a)},ellipse:function(t,e,i,n,r,a,o,s){var c=this.currentPoint.x,h=this.currentPoint.y;this.absellipse(t+c,e+h,i,n,r,a,o,s)},absellipse:function(t,e,i,n,r,a,o,s){var c=new Pn(t,e,i,n,r,a,o,s);if(this.curves.length>0){var h=c.getPoint(0);h.equals(this.currentPoint)||this.lineTo(h.x,h.y)}this.curves.push(c);var l=c.getPoint(1);this.currentPoint.copy(l)},copy:function(t){return Ln.prototype.copy.call(this,t),this.currentPoint.copy(t.currentPoint),this}}),On.prototype=Object.assign(Object.create(Dn.prototype),{constructor:On,getPointsHoles:function(t){for(var e=[],i=0,n=this.holes.length;i<n;i++)e[i]=this.holes[i].getPoints(t);return e},extractPoints:function(t){return{shape:this.getPoints(t),holes:this.getPointsHoles(t)}},copy:function(t){Dn.prototype.copy.call(this,t),this.holes=[];for(var e=0,i=t.holes.length;e<i;e++){var n=t.holes[e];this.holes.push(n.clone())}return this}}),Object.assign(Nn.prototype,{moveTo:function(t,e){this.currentPath=new Dn,this.subPaths.push(this.currentPath),this.currentPath.moveTo(t,e)},lineTo:function(t,e){this.currentPath.lineTo(t,e)},quadraticCurveTo:function(t,e,i,n){this.currentPath.quadraticCurveTo(t,e,i,n)},bezierCurveTo:function(t,e,i,n,r,a){this.currentPath.bezierCurveTo(t,e,i,n,r,a)},splineThru:function(t){this.currentPath.splineThru(t)},toShapes:function(t,e){function i(t){for(var e=[],i=0,n=t.length;i<n;i++){var r=t[i],a=new On;a.curves=r.curves,e.push(a)}return e}var n=Ds.isClockWise,r=this.subPaths;if(0===r.length)return[];if(!0===e)return i(r);var a,o,s,c=[];if(1===r.length)return o=r[0],s=new On,s.curves=o.curves,c.push(s),c;var h=!n(r[0].getPoints());h=t?!h:h;var l,u=[],p=[],d=[],f=0;p[f]=void 0,d[f]=[];for(var m=0,g=r.length;m<g;m++)o=r[m],l=o.getPoints(),a=n(l),a=t?!a:a,a?(!h&&p[f]&&f++,p[f]={s:new On,p:l},p[f].s.curves=o.curves,h&&f++,d[f]=[]):d[f].push({h:o,p:l[0]});if(!p[0])return i(r);if(p.length>1){for(var v=!1,y=[],x=0,b=p.length;x<b;x++)u[x]=[];for(var x=0,b=p.length;x<b;x++)for(var _=d[x],w=0;w<_.length;w++){for(var M=_[w],E=!0,T=0;T<p.length;T++)(function(t,e){for(var i=e.length,n=!1,r=i-1,a=0;a<i;r=a++){var o=e[r],s=e[a],c=s.x-o.x,h=s.y-o.y;if(Math.abs(h)>Number.EPSILON){if(h<0&&(o=e[a],c=-c,s=e[r],h=-h),t.y<o.y||t.y>s.y)continue;if(t.y===o.y){if(t.x===o.x)return!0}else{var l=h*(t.x-o.x)-c*(t.y-o.y);if(0===l)return!0;if(l<0)continue;n=!n}}else{if(t.y!==o.y)continue;if(s.x<=t.x&&t.x<=o.x||o.x<=t.x&&t.x<=s.x)return!0}}return n})(M.p,p[T].p)&&(x!==T&&y.push({froms:x,tos:T,hole:w}),E?(E=!1,u[T].push(M)):v=!0);E&&u[x].push(M)}y.length>0&&(v||(d=u))}for(var S,m=0,A=p.length;m<A;m++){s=p[m].s,c.push(s),S=d[m];for(var R=0,L=S.length;R<L;R++)s.holes.push(S[R].h)}return c}}),Object.assign(Fn.prototype,{isFont:!0,generateShapes:function(t,e,i){function n(t,e,i,n){var a=r.glyphs[t]||r.glyphs[\"?\"];if(a){var o,s,c,h,l,u,p,d,f,m=new Nn,g=[];if(a.o)for(var v=a._cachedOutline||(a._cachedOutline=a.o.split(\" \")),y=0,x=v.length;y<x;){var b=v[y++];switch(b){case\"m\":o=v[y++]*e+i,s=v[y++]*e+n,m.moveTo(o,s);break;case\"l\":o=v[y++]*e+i,s=v[y++]*e+n,m.lineTo(o,s);break;case\"q\":c=v[y++]*e+i,h=v[y++]*e+n,l=v[y++]*e+i,u=v[y++]*e+n,m.quadraticCurveTo(l,u,c,h),f=g[g.length-1],f&&(f.x,f.y);break;case\"b\":c=v[y++]*e+i,h=v[y++]*e+n,l=v[y++]*e+i,u=v[y++]*e+n,p=v[y++]*e+i,d=v[y++]*e+n,m.bezierCurveTo(l,u,p,d,c,h),f=g[g.length-1],f&&(f.x,f.y)}}return{offsetX:a.ha*e,path:m}}}void 0===e&&(e=100),void 0===i&&(i=4);for(var r=this.data,a=function(t){for(var i=String(t).split(\"\"),a=e/r.resolution,o=(r.boundingBox.yMax-r.boundingBox.yMin+r.underlineThickness)*a,s=0,c=0,h=[],l=0;l<i.length;l++){var u=i[l];if(\"\\n\"===u)s=0,c-=o;else{var p=n(u,a,s,c);s+=p.offsetX,h.push(p.path)}}return h}(t),o=[],s=0,c=a.length;s<c;s++)Array.prototype.push.apply(o,a[s].toShapes());return o}}),Object.assign(Bn.prototype,{load:function(t,e,i,n){var r=this,a=new Ni(this.manager);a.setPath(this.path),a.load(t,function(t){var i;try{i=JSON.parse(t)}catch(e){console.warn(\"THREE.FontLoader: typeface.js support is being deprecated. Use typeface.json instead.\"),i=JSON.parse(t.substring(65,t.length-2))}var n=r.parse(i);e&&e(n)},i,n)},parse:function(t){return new Fn(t)},setPath:function(t){return this.path=t,this}});var Ws,Xs={getContext:function(){return void 0===Ws&&(Ws=new(window.AudioContext||window.webkitAudioContext)),Ws},setContext:function(t){Ws=t}};Object.assign(zn.prototype,{load:function(t,e,i,n){var r=new Ni(this.manager);r.setResponseType(\"arraybuffer\"),r.load(t,function(t){Xs.getContext().decodeAudioData(t,function(t){e(t)})},i,n)}}),Object.assign(Gn.prototype,{update:function(){var t,e,i,r,a,o,s,c,h=new n,l=new n;return function(n){if(t!==this||e!==n.focus||i!==n.fov||r!==n.aspect*this.aspect||a!==n.near||o!==n.far||s!==n.zoom||c!==this.eyeSep){t=this,e=n.focus,i=n.fov,r=n.aspect*this.aspect,a=n.near,o=n.far,s=n.zoom;var u=n.projectionMatrix.clone();c=this.eyeSep/2;var p,d,f=c*a/e,m=a*Math.tan(ms.DEG2RAD*i*.5)/s;l.elements[12]=-c,h.elements[12]=c,p=-m*r+f,d=m*r+f,u.elements[0]=2*a/(d-p),u.elements[8]=(d+p)/(d-p),this.cameraL.projectionMatrix.copy(u),p=-m*r-f,d=m*r-f,u.elements[0]=2*a/(d-p),u.elements[8]=(d+p)/(d-p),this.cameraR.projectionMatrix.copy(u)}this.cameraL.matrixWorld.copy(n.matrixWorld).multiply(l),this.cameraR.matrixWorld.copy(n.matrixWorld).multiply(h)}}()}),Hn.prototype=Object.create(ht.prototype),Hn.prototype.constructor=Hn,Vn.prototype=Object.assign(Object.create(ht.prototype),{constructor:Vn,getInput:function(){return this.gain},removeFilter:function(){null!==this.filter&&(this.gain.disconnect(this.filter),this.filter.disconnect(this.context.destination),this.gain.connect(this.context.destination),this.filter=null)},getFilter:function(){return this.filter},setFilter:function(t){null!==this.filter?(this.gain.disconnect(this.filter),this.filter.disconnect(this.context.destination)):this.gain.disconnect(this.context.destination),this.filter=t,this.gain.connect(this.filter),this.filter.connect(this.context.destination)},getMasterVolume:function(){return this.gain.gain.value},setMasterVolume:function(t){this.gain.gain.value=t},updateMatrixWorld:function(){var t=new a,e=new r,i=new a,n=new a;return function(r){ht.prototype.updateMatrixWorld.call(this,r);var a=this.context.listener,o=this.up;this.matrixWorld.decompose(t,e,i),n.set(0,0,-1).applyQuaternion(e),a.positionX?(a.positionX.setValueAtTime(t.x,this.context.currentTime),a.positionY.setValueAtTime(t.y,this.context.currentTime),a.positionZ.setValueAtTime(t.z,this.context.currentTime),a.forwardX.setValueAtTime(n.x,this.context.currentTime),a.forwardY.setValueAtTime(n.y,this.context.currentTime),a.forwardZ.setValueAtTime(n.z,this.context.currentTime),a.upX.setValueAtTime(o.x,this.context.currentTime),a.upY.setValueAtTime(o.y,this.context.currentTime),a.upZ.setValueAtTime(o.z,this.context.currentTime)):(a.setPosition(t.x,t.y,t.z),a.setOrientation(n.x,n.y,n.z,o.x,o.y,o.z))}}()}),kn.prototype=Object.assign(Object.create(ht.prototype),{constructor:kn,getOutput:function(){return this.gain},setNodeSource:function(t){return this.hasPlaybackControl=!1,this.sourceType=\"audioNode\",this.source=t,this.connect(),this},setBuffer:function(t){return this.buffer=t,this.sourceType=\"buffer\",this.autoplay&&this.play(),this},play:function(){if(!0===this.isPlaying)return void console.warn(\"THREE.Audio: Audio is already playing.\");if(!1===this.hasPlaybackControl)return void console.warn(\"THREE.Audio: this Audio has no playback control.\");var t=this.context.createBufferSource();return t.buffer=this.buffer,t.loop=this.loop,t.onended=this.onEnded.bind(this),t.playbackRate.setValueAtTime(this.playbackRate,this.startTime),this.startTime=this.context.currentTime,t.start(this.startTime,this.offset),this.isPlaying=!0,this.source=t,this.connect()},pause:function(){return!1===this.hasPlaybackControl?void console.warn(\"THREE.Audio: this Audio has no playback control.\"):(!0===this.isPlaying&&(this.source.stop(),this.offset+=(this.context.currentTime-this.startTime)*this.playbackRate,this.isPlaying=!1),this)},stop:function(){return!1===this.hasPlaybackControl?void console.warn(\"THREE.Audio: this Audio has no playback control.\"):(this.source.stop(),this.offset=0,this.isPlaying=!1,this)},connect:function(){if(this.filters.length>0){this.source.connect(this.filters[0]);for(var t=1,e=this.filters.length;t<e;t++)this.filters[t-1].connect(this.filters[t]);this.filters[this.filters.length-1].connect(this.getOutput())}else this.source.connect(this.getOutput());return this},disconnect:function(){if(this.filters.length>0){this.source.disconnect(this.filters[0]);for(var t=1,e=this.filters.length;t<e;t++)this.filters[t-1].disconnect(this.filters[t]);this.filters[this.filters.length-1].disconnect(this.getOutput())}else this.source.disconnect(this.getOutput());return this},getFilters:function(){return this.filters},setFilters:function(t){return t||(t=[]),!0===this.isPlaying?(this.disconnect(),this.filters=t,this.connect()):this.filters=t,this},getFilter:function(){return this.getFilters()[0]},setFilter:function(t){return this.setFilters(t?[t]:[])},setPlaybackRate:function(t){return!1===this.hasPlaybackControl?void console.warn(\"THREE.Audio: this Audio has no playback control.\"):(this.playbackRate=t,!0===this.isPlaying&&this.source.playbackRate.setValueAtTime(this.playbackRate,this.context.currentTime),this)},getPlaybackRate:function(){return this.playbackRate},onEnded:function(){this.isPlaying=!1},getLoop:function(){return!1===this.hasPlaybackControl?(console.warn(\"THREE.Audio: this Audio has no playback control.\"),!1):this.loop},setLoop:function(t){return!1===this.hasPlaybackControl?void console.warn(\"THREE.Audio: this Audio has no playback control.\"):(this.loop=t,!0===this.isPlaying&&(this.source.loop=this.loop),this)},getVolume:function(){return this.gain.gain.value},setVolume:function(t){return this.gain.gain.value=t,this}}),jn.prototype=Object.assign(Object.create(kn.prototype),{constructor:jn,getOutput:function(){return this.panner},getRefDistance:function(){return this.panner.refDistance},setRefDistance:function(t){this.panner.refDistance=t},getRolloffFactor:function(){return this.panner.rolloffFactor},setRolloffFactor:function(t){this.panner.rolloffFactor=t},getDistanceModel:function(){return this.panner.distanceModel},setDistanceModel:function(t){this.panner.distanceModel=t},getMaxDistance:function(){return this.panner.maxDistance},setMaxDistance:function(t){this.panner.maxDistance=t},updateMatrixWorld:function(){var t=new a;return function(e){ht.prototype.updateMatrixWorld.call(this,e),t.setFromMatrixPosition(this.matrixWorld),this.panner.setPosition(t.x,t.y,t.z)}}()}),Object.assign(Wn.prototype,{getFrequencyData:function(){return this.analyser.getByteFrequencyData(this.data),this.data},getAverageFrequency:function(){for(var t=0,e=this.getFrequencyData(),i=0;i<e.length;i++)t+=e[i];return t/e.length}}),Object.assign(Xn.prototype,{accumulate:function(t,e){var i=this.buffer,n=this.valueSize,r=t*n+n,a=this.cumulativeWeight;if(0===a){for(var o=0;o!==n;++o)i[r+o]=i[o];a=e}else{a+=e;var s=e/a;this._mixBufferRegion(i,r,0,s,n)}this.cumulativeWeight=a},apply:function(t){var e=this.valueSize,i=this.buffer,n=t*e+e,r=this.cumulativeWeight,a=this.binding;if(this.cumulativeWeight=0,r<1){var o=3*e;this._mixBufferRegion(i,n,o,1-r,e)}for(var s=e,c=e+e;s!==c;++s)if(i[s]!==i[s+e]){a.setValue(i,n);break}},saveOriginalState:function(){var t=this.binding,e=this.buffer,i=this.valueSize,n=3*i;t.getValue(e,n);for(var r=i,a=n;r!==a;++r)e[r]=e[n+r%i];this.cumulativeWeight=0},restoreOriginalState:function(){var t=3*this.valueSize;this.binding.setValue(this.buffer,t)},_select:function(t,e,i,n,r){if(n>=.5)for(var a=0;a!==r;++a)t[e+a]=t[i+a]},_slerp:function(t,e,i,n){r.slerpFlat(t,e,t,e,t,i,n)},_lerp:function(t,e,i,n,r){for(var a=1-n,o=0;o!==r;++o){var s=e+o;t[s]=t[s]*a+t[i+o]*n}}}),Object.assign(qn.prototype,{getValue:function(t,e){this.bind();var i=this._targetGroup.nCachedObjects_,n=this._bindings[i];void 0!==n&&n.getValue(t,e)},setValue:function(t,e){for(var i=this._bindings,n=this._targetGroup.nCachedObjects_,r=i.length;n!==r;++n)i[n].setValue(t,e)},bind:function(){for(var t=this._bindings,e=this._targetGroup.nCachedObjects_,i=t.length;e!==i;++e)t[e].bind()},unbind:function(){for(var t=this._bindings,e=this._targetGroup.nCachedObjects_,i=t.length;e!==i;++e)t[e].unbind()}}),Object.assign(Yn,{Composite:qn,create:function(t,e,i){return t&&t.isAnimationObjectGroup?new Yn.Composite(t,e,i):new Yn(t,e,i)},sanitizeNodeName:function(t){return t.replace(/\\s/g,\"_\").replace(/[^\\w-]/g,\"\")},parseTrackName:function(){var t=/((?:[\\w-]+[\\/:])*)/,e=/([\\w-\\.]+)?/,i=/(?:\\.([\\w-]+)(?:\\[(.+)\\])?)?/,n=/\\.([\\w-]+)(?:\\[(.+)\\])?/,r=new RegExp(\"^\"+t.source+e.source+i.source+n.source+\"$\"),a=[\"material\",\"materials\",\"bones\"];return function(t){var e=r.exec(t);if(!e)throw new Error(\"PropertyBinding: Cannot parse trackName: \"+t);var i={nodeName:e[2],objectName:e[3],objectIndex:e[4],propertyName:e[5],propertyIndex:e[6]},n=i.nodeName&&i.nodeName.lastIndexOf(\".\");if(void 0!==n&&-1!==n){var o=i.nodeName.substring(n+1);-1!==a.indexOf(o)&&(i.nodeName=i.nodeName.substring(0,n),i.objectName=o)}if(null===i.propertyName||0===i.propertyName.length)throw new Error(\"PropertyBinding: can not parse propertyName from trackName: \"+t);return i}}(),findNode:function(t,e){if(!e||\"\"===e||\"root\"===e||\".\"===e||-1===e||e===t.name||e===t.uuid)return t;if(t.skeleton){var i=function(t){for(var i=0;i<t.bones.length;i++){var n=t.bones[i];if(n.name===e)return n}return null}(t.skeleton);if(i)return i}if(t.children){var n=function(t){for(var i=0;i<t.length;i++){var r=t[i];if(r.name===e||r.uuid===e)return r;var a=n(r.children);if(a)return a}return null},r=n(t.children);if(r)return r}return null}}),Object.assign(Yn.prototype,{_getValue_unavailable:function(){},_setValue_unavailable:function(){},BindingType:{Direct:0,EntireArray:1,ArrayElement:2,HasFromToArray:3},Versioning:{None:0,NeedsUpdate:1,MatrixWorldNeedsUpdate:2},GetterByBindingType:[function(t,e){t[e]=this.node[this.propertyName]},function(t,e){for(var i=this.resolvedProperty,n=0,r=i.length;n!==r;++n)t[e++]=i[n]},function(t,e){t[e]=this.resolvedProperty[this.propertyIndex]},function(t,e){this.resolvedProperty.toArray(t,e)}],SetterByBindingTypeAndVersioning:[[function(t,e){this.targetObject[this.propertyName]=t[e]},function(t,e){this.targetObject[this.propertyName]=t[e],this.targetObject.needsUpdate=!0},function(t,e){this.targetObject[this.propertyName]=t[e],this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){for(var i=this.resolvedProperty,n=0,r=i.length;n!==r;++n)i[n]=t[e++]},function(t,e){for(var i=this.resolvedProperty,n=0,r=i.length;n!==r;++n)i[n]=t[e++];this.targetObject.needsUpdate=!0},function(t,e){for(var i=this.resolvedProperty,n=0,r=i.length;n!==r;++n)i[n]=t[e++];this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){this.resolvedProperty[this.propertyIndex]=t[e]},function(t,e){this.resolvedProperty[this.propertyIndex]=t[e],this.targetObject.needsUpdate=!0},function(t,e){this.resolvedProperty[this.propertyIndex]=t[e],this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){this.resolvedProperty.fromArray(t,e)},function(t,e){this.resolvedProperty.fromArray(t,e),this.targetObject.needsUpdate=!0},function(t,e){this.resolvedProperty.fromArray(t,e),this.targetObject.matrixWorldNeedsUpdate=!0}]],getValue:function(t,e){this.bind(),this.getValue(t,e)},setValue:function(t,e){this.bind(),this.setValue(t,e)},bind:function(){var t=this.node,e=this.parsedPath,i=e.objectName,n=e.propertyName,r=e.propertyIndex;if(t||(t=Yn.findNode(this.rootNode,e.nodeName)||this.rootNode,this.node=t),this.getValue=this._getValue_unavailable,this.setValue=this._setValue_unavailable,!t)return void console.error(\"THREE.PropertyBinding: Trying to update node for track: \"+this.path+\" but it wasn't found.\");if(i){var a=e.objectIndex;switch(i){case\"materials\":if(!t.material)return void console.error(\"THREE.PropertyBinding: Can not bind to material as node does not have a material.\",this);if(!t.material.materials)return void console.error(\"THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.\",this);t=t.material.materials;break;case\"bones\":if(!t.skeleton)return void console.error(\"THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.\",this);t=t.skeleton.bones;for(var o=0;o<t.length;o++)if(t[o].name===a){a=o;break}break;default:if(void 0===t[i])return void console.error(\"THREE.PropertyBinding: Can not bind to objectName of node undefined.\",this);t=t[i]}if(void 0!==a){if(void 0===t[a])return void console.error(\"THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.\",this,t);t=t[a]}}var s=t[n];if(void 0===s){var c=e.nodeName;return void console.error(\"THREE.PropertyBinding: Trying to update property for track: \"+c+\".\"+n+\" but it wasn't found.\",t)}var h=this.Versioning.None;void 0!==t.needsUpdate?(h=this.Versioning.NeedsUpdate,this.targetObject=t):void 0!==t.matrixWorldNeedsUpdate&&(h=this.Versioning.MatrixWorldNeedsUpdate,this.targetObject=t);var l=this.BindingType.Direct;if(void 0!==r){if(\"morphTargetInfluences\"===n){if(!t.geometry)return void console.error(\"THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.\",this);if(t.geometry.isBufferGeometry){if(!t.geometry.morphAttributes)return void console.error(\"THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.\",this);for(var o=0;o<this.node.geometry.morphAttributes.position.length;o++)if(t.geometry.morphAttributes.position[o].name===r){r=o;break}}else{if(!t.geometry.morphTargets)return void console.error(\"THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphTargets.\",this);for(var o=0;o<this.node.geometry.morphTargets.length;o++)if(t.geometry.morphTargets[o].name===r){r=o;break}}}l=this.BindingType.ArrayElement,this.resolvedProperty=s,this.propertyIndex=r}else void 0!==s.fromArray&&void 0!==s.toArray?(l=this.BindingType.HasFromToArray,this.resolvedProperty=s):Array.isArray(s)?(l=this.BindingType.EntireArray,this.resolvedProperty=s):this.propertyName=n;this.getValue=this.GetterByBindingType[l],this.setValue=this.SetterByBindingTypeAndVersioning[l][h]},unbind:function(){this.node=null,this.getValue=this._getValue_unbound,this.setValue=this._setValue_unbound}}),Object.assign(Yn.prototype,{_getValue_unbound:Yn.prototype.getValue,_setValue_unbound:Yn.prototype.setValue}),Object.assign(Zn.prototype,{isAnimationObjectGroup:!0,add:function(){for(var t=this._objects,e=t.length,i=this.nCachedObjects_,n=this._indicesByUUID,r=this._paths,a=this._parsedPaths,o=this._bindings,s=o.length,c=0,h=arguments.length;c!==h;++c){var l=arguments[c],u=l.uuid,p=n[u],d=void 0;if(void 0===p){p=e++,n[u]=p,t.push(l);for(var f=0,m=s;f!==m;++f)o[f].push(new Yn(l,r[f],a[f]))}else if(p<i){d=t[p];var g=--i,v=t[g];n[v.uuid]=p,t[p]=v,n[u]=g,t[g]=l;for(var f=0,m=s;f!==m;++f){var y=o[f],x=y[g],b=y[p];y[p]=x,void 0===b&&(b=new Yn(l,r[f],a[f])),y[g]=b}}else t[p]!==d&&console.error(\"THREE.AnimationObjectGroup: Different objects with the same UUID detected. Clean the caches or recreate your infrastructure when reloading scenes.\")}this.nCachedObjects_=i},remove:function(){for(var t=this._objects,e=this.nCachedObjects_,i=this._indicesByUUID,n=this._bindings,r=n.length,a=0,o=arguments.length;a!==o;++a){var s=arguments[a],c=s.uuid,h=i[c];if(void 0!==h&&h>=e){var l=e++,u=t[l];i[u.uuid]=h,t[h]=u,i[c]=l,t[l]=s;for(var p=0,d=r;p!==d;++p){var f=n[p],m=f[l],g=f[h];f[h]=m,f[l]=g}}}this.nCachedObjects_=e},uncache:function(){for(var t=this._objects,e=t.length,i=this.nCachedObjects_,n=this._indicesByUUID,r=this._bindings,a=r.length,o=0,s=arguments.length;o!==s;++o){var c=arguments[o],h=c.uuid,l=n[h];if(void 0!==l)if(delete n[h],l<i){var u=--i,p=t[u],d=--e,f=t[d];n[p.uuid]=l,t[l]=p,n[f.uuid]=u,t[u]=f,t.pop();for(var m=0,g=a;m!==g;++m){var v=r[m],y=v[u],x=v[d];v[l]=y,v[u]=x,v.pop()}}else{var d=--e,f=t[d];n[f.uuid]=l,t[l]=f,t.pop();for(var m=0,g=a;m!==g;++m){var v=r[m];v[l]=v[d],v.pop()}}}this.nCachedObjects_=i},subscribe_:function(t,e){var i=this._bindingsIndicesByPath,n=i[t],r=this._bindings;if(void 0!==n)return r[n];var a=this._paths,o=this._parsedPaths,s=this._objects,c=s.length,h=this.nCachedObjects_,l=new Array(c);n=r.length,i[t]=n,a.push(t),o.push(e),r.push(l);for(var u=h,p=s.length;u!==p;++u){var d=s[u];l[u]=new Yn(d,t,e)}return l},unsubscribe_:function(t){var e=this._bindingsIndicesByPath,i=e[t];if(void 0!==i){var n=this._paths,r=this._parsedPaths,a=this._bindings,o=a.length-1,s=a[o];e[t[o]]=i,a[i]=s,a.pop(),r[i]=r[o],r.pop(),n[i]=n[o],n.pop()}}}),Object.assign(Jn.prototype,{play:function(){return this._mixer._activateAction(this),this},stop:function(){return this._mixer._deactivateAction(this),this.reset()},reset:function(){return this.paused=!1,this.enabled=!0,this.time=0,this._loopCount=-1,this._startTime=null,this.stopFading().stopWarping()},isRunning:function(){return this.enabled&&!this.paused&&0!==this.timeScale&&null===this._startTime&&this._mixer._isActiveAction(this)},isScheduled:function(){return this._mixer._isActiveAction(this)},startAt:function(t){return this._startTime=t,this},setLoop:function(t,e){return this.loop=t,this.repetitions=e,this},setEffectiveWeight:function(t){return this.weight=t,this._effectiveWeight=this.enabled?t:0,this.stopFading()},getEffectiveWeight:function(){return this._effectiveWeight},fadeIn:function(t){return this._scheduleFading(t,0,1)},fadeOut:function(t){return this._scheduleFading(t,1,0)},crossFadeFrom:function(t,e,i){if(t.fadeOut(e),this.fadeIn(e),i){var n=this._clip.duration,r=t._clip.duration,a=r/n,o=n/r;t.warp(1,a,e),this.warp(o,1,e)}return this},crossFadeTo:function(t,e,i){return t.crossFadeFrom(this,e,i)},stopFading:function(){var t=this._weightInterpolant;return null!==t&&(this._weightInterpolant=null,this._mixer._takeBackControlInterpolant(t)),this},setEffectiveTimeScale:function(t){return this.timeScale=t,this._effectiveTimeScale=this.paused?0:t,this.stopWarping()},getEffectiveTimeScale:function(){return this._effectiveTimeScale},setDuration:function(t){return this.timeScale=this._clip.duration/t,this.stopWarping()},syncWith:function(t){return this.time=t.time,this.timeScale=t.timeScale,this.stopWarping()},halt:function(t){return this.warp(this._effectiveTimeScale,0,t)},warp:function(t,e,i){var n=this._mixer,r=n.time,a=this._timeScaleInterpolant,o=this.timeScale;null===a&&(a=n._lendControlInterpolant(),this._timeScaleInterpolant=a);var s=a.parameterPositions,c=a.sampleValues;return s[0]=r,s[1]=r+i,c[0]=t/o,c[1]=e/o,this},stopWarping:function(){var t=this._timeScaleInterpolant;return null!==t&&(this._timeScaleInterpolant=null,this._mixer._takeBackControlInterpolant(t)),this},getMixer:function(){return this._mixer},getClip:function(){return this._clip},getRoot:function(){return this._localRoot||this._mixer._root},_update:function(t,e,i,n){if(!this.enabled)return void this._updateWeight(t);var r=this._startTime;if(null!==r){var a=(t-r)*i;if(a<0||0===i)return;this._startTime=null,e=i*a}e*=this._updateTimeScale(t);var o=this._updateTime(e),s=this._updateWeight(t);if(s>0)for(var c=this._interpolants,h=this._propertyBindings,l=0,u=c.length;l!==u;++l)c[l].evaluate(o),h[l].accumulate(n,s)},_updateWeight:function(t){var e=0;if(this.enabled){e=this.weight;var i=this._weightInterpolant;if(null!==i){var n=i.evaluate(t)[0];e*=n,t>i.parameterPositions[1]&&(this.stopFading(),0===n&&(this.enabled=!1))}}return this._effectiveWeight=e,e},_updateTimeScale:function(t){var e=0;if(!this.paused){e=this.timeScale;var i=this._timeScaleInterpolant;if(null!==i){e*=i.evaluate(t)[0],t>i.parameterPositions[1]&&(this.stopWarping(),0===e?this.paused=!0:this.timeScale=e)}}return this._effectiveTimeScale=e,e},_updateTime:function(t){var e=this.time+t;if(0===t)return e;var i=this._clip.duration,n=this.loop,r=this._loopCount;if(2200===n){-1===r&&(this._loopCount=0,this._setEndings(!0,!0,!1));t:{if(e>=i)e=i;else{if(!(e<0))break t;e=0}this.clampWhenFinished?this.paused=!0:this.enabled=!1,this._mixer.dispatchEvent({type:\"finished\",action:this,direction:t<0?-1:1})}}else{var a=2202===n;if(-1===r&&(t>=0?(r=0,this._setEndings(!0,0===this.repetitions,a)):this._setEndings(0===this.repetitions,!0,a)),e>=i||e<0){var o=Math.floor(e/i);e-=i*o,r+=Math.abs(o);var s=this.repetitions-r;if(s<0)this.clampWhenFinished?this.paused=!0:this.enabled=!1,e=t>0?i:0,this._mixer.dispatchEvent({type:\"finished\",action:this,direction:t>0?1:-1});else{if(0===s){var c=t<0;this._setEndings(c,!c,a)}else this._setEndings(!1,!1,a);this._loopCount=r,this._mixer.dispatchEvent({type:\"loop\",action:this,loopDelta:o})}}if(a&&1==(1&r))return this.time=e,i-e}return this.time=e,e},_setEndings:function(t,e,i){var n=this._interpolantSettings;i?(n.endingStart=2401,n.endingEnd=2401):(n.endingStart=t?this.zeroSlopeAtStart?2401:is:2402,n.endingEnd=e?this.zeroSlopeAtEnd?2401:is:2402)},_scheduleFading:function(t,e,i){var n=this._mixer,r=n.time,a=this._weightInterpolant;null===a&&(a=n._lendControlInterpolant(),this._weightInterpolant=a);var o=a.parameterPositions,s=a.sampleValues;return o[0]=r,s[0]=e,o[1]=r+t,s[1]=i,this}}),Object.assign(Qn.prototype,e.prototype,{_bindAction:function(t,e){var i=t._localRoot||this._root,n=t._clip.tracks,r=n.length,a=t._propertyBindings,o=t._interpolants,s=i.uuid,c=this._bindingsByRootAndName,h=c[s];void 0===h&&(h={},c[s]=h);for(var l=0;l!==r;++l){var u=n[l],p=u.name,d=h[p];if(void 0!==d)a[l]=d;else{if(void 0!==(d=a[l])){null===d._cacheIndex&&(++d.referenceCount,this._addInactiveBinding(d,s,p));continue}var f=e&&e._propertyBindings[l].binding.parsedPath;d=new Xn(Yn.create(i,p,f),u.ValueTypeName,u.getValueSize()),++d.referenceCount,this._addInactiveBinding(d,s,p),a[l]=d}o[l].resultBuffer=d.buffer}},_activateAction:function(t){if(!this._isActiveAction(t)){if(null===t._cacheIndex){var e=(t._localRoot||this._root).uuid,i=t._clip.uuid,n=this._actionsByClip[i];this._bindAction(t,n&&n.knownActions[0]),this._addInactiveAction(t,i,e)}for(var r=t._propertyBindings,a=0,o=r.length;a!==o;++a){var s=r[a];0==s.useCount++&&(this._lendBinding(s),s.saveOriginalState())}this._lendAction(t)}},_deactivateAction:function(t){if(this._isActiveAction(t)){for(var e=t._propertyBindings,i=0,n=e.length;i!==n;++i){var r=e[i];0==--r.useCount&&(r.restoreOriginalState(),this._takeBackBinding(r))}this._takeBackAction(t)}},_initMemoryManager:function(){this._actions=[],this._nActiveActions=0,this._actionsByClip={},this._bindings=[],this._nActiveBindings=0,this._bindingsByRootAndName={},this._controlInterpolants=[],this._nActiveControlInterpolants=0;var t=this;this.stats={actions:{get total(){return t._actions.length},get inUse(){return t._nActiveActions}},bindings:{get total(){return t._bindings.length},get inUse(){return t._nActiveBindings}},controlInterpolants:{get total(){return t._controlInterpolants.length},get inUse(){return t._nActiveControlInterpolants}}}},_isActiveAction:function(t){var e=t._cacheIndex;return null!==e&&e<this._nActiveActions},_addInactiveAction:function(t,e,i){var n=this._actions,r=this._actionsByClip,a=r[e];if(void 0===a)a={knownActions:[t],actionByRoot:{}},t._byClipCacheIndex=0,r[e]=a;else{var o=a.knownActions;t._byClipCacheIndex=o.length,o.push(t)}t._cacheIndex=n.length,n.push(t),a.actionByRoot[i]=t},_removeInactiveAction:function(t){var e=this._actions,i=e[e.length-1],n=t._cacheIndex;i._cacheIndex=n,e[n]=i,e.pop(),t._cacheIndex=null;var r=t._clip.uuid,a=this._actionsByClip,o=a[r],s=o.knownActions,c=s[s.length-1],h=t._byClipCacheIndex;c._byClipCacheIndex=h,s[h]=c,s.pop(),t._byClipCacheIndex=null,delete o.actionByRoot[(t._localRoot||this._root).uuid],0===s.length&&delete a[r],this._removeInactiveBindingsForAction(t)},_removeInactiveBindingsForAction:function(t){for(var e=t._propertyBindings,i=0,n=e.length;i!==n;++i){var r=e[i];0==--r.referenceCount&&this._removeInactiveBinding(r)}},_lendAction:function(t){var e=this._actions,i=t._cacheIndex,n=this._nActiveActions++,r=e[n];t._cacheIndex=n,e[n]=t,r._cacheIndex=i,e[i]=r},_takeBackAction:function(t){var e=this._actions,i=t._cacheIndex,n=--this._nActiveActions,r=e[n];t._cacheIndex=n,e[n]=t,r._cacheIndex=i,e[i]=r},_addInactiveBinding:function(t,e,i){var n=this._bindingsByRootAndName,r=n[e],a=this._bindings;void 0===r&&(r={},n[e]=r),r[i]=t,t._cacheIndex=a.length,a.push(t)},_removeInactiveBinding:function(t){var e=this._bindings,i=t.binding,n=i.rootNode.uuid,r=i.path,a=this._bindingsByRootAndName,o=a[n],s=e[e.length-1],c=t._cacheIndex;s._cacheIndex=c,e[c]=s,e.pop(),delete o[r];t:{for(var h in o)break t;delete a[n]}},_lendBinding:function(t){var e=this._bindings,i=t._cacheIndex,n=this._nActiveBindings++,r=e[n];t._cacheIndex=n,e[n]=t,r._cacheIndex=i,e[i]=r},_takeBackBinding:function(t){var e=this._bindings,i=t._cacheIndex,n=--this._nActiveBindings,r=e[n];t._cacheIndex=n,e[n]=t,r._cacheIndex=i,e[i]=r},_lendControlInterpolant:function(){var t=this._controlInterpolants,e=this._nActiveControlInterpolants++,i=t[e];return void 0===i&&(i=new sn(new Float32Array(2),new Float32Array(2),1,this._controlInterpolantsResultBuffer),i.__cacheIndex=e,t[e]=i),i},_takeBackControlInterpolant:function(t){var e=this._controlInterpolants,i=t.__cacheIndex,n=--this._nActiveControlInterpolants,r=e[n];t.__cacheIndex=n,e[n]=t,r.__cacheIndex=i,e[i]=r},_controlInterpolantsResultBuffer:new Float32Array(1),clipAction:function(t,e){var i=e||this._root,n=i.uuid,r=\"string\"==typeof t?un.findByName(i,t):t,a=null!==r?r.uuid:t,o=this._actionsByClip[a],s=null;if(void 0!==o){var c=o.actionByRoot[n];if(void 0!==c)return c;s=o.knownActions[0],null===r&&(r=s._clip)}if(null===r)return null;var h=new Jn(this,r,e);return this._bindAction(h,s),this._addInactiveAction(h,a,n),h},existingAction:function(t,e){var i=e||this._root,n=i.uuid,r=\"string\"==typeof t?un.findByName(i,t):t,a=r?r.uuid:t,o=this._actionsByClip[a];return void 0!==o?o.actionByRoot[n]||null:null},stopAllAction:function(){var t=this._actions,e=this._nActiveActions,i=this._bindings,n=this._nActiveBindings;this._nActiveActions=0,this._nActiveBindings=0;for(var r=0;r!==e;++r)t[r].reset();for(var r=0;r!==n;++r)i[r].useCount=0;return this},update:function(t){t*=this.timeScale;for(var e=this._actions,i=this._nActiveActions,n=this.time+=t,r=Math.sign(t),a=this._accuIndex^=1,o=0;o!==i;++o){e[o]._update(n,t,r,a)}for(var s=this._bindings,c=this._nActiveBindings,o=0;o!==c;++o)s[o].apply(a);return this},getRoot:function(){return this._root},uncacheClip:function(t){var e=this._actions,i=t.uuid,n=this._actionsByClip,r=n[i];if(void 0!==r){for(var a=r.knownActions,o=0,s=a.length;o!==s;++o){var c=a[o];this._deactivateAction(c);var h=c._cacheIndex,l=e[e.length-1];c._cacheIndex=null,c._byClipCacheIndex=null,l._cacheIndex=h,e[h]=l,e.pop(),this._removeInactiveBindingsForAction(c)}delete n[i]}},uncacheRoot:function(t){var e=t.uuid,i=this._actionsByClip;for(var n in i){var r=i[n].actionByRoot,a=r[e];void 0!==a&&(this._deactivateAction(a),this._removeInactiveAction(a))}var o=this._bindingsByRootAndName,s=o[e];if(void 0!==s)for(var c in s){var h=s[c];h.restoreOriginalState(),this._removeInactiveBinding(h)}},uncacheAction:function(t,e){var i=this.existingAction(t,e);null!==i&&(this._deactivateAction(i),this._removeInactiveAction(i))}}),Kn.prototype.clone=function(){\nreturn new Kn(void 0===this.value.clone?this.value:this.value.clone())},$n.prototype=Object.assign(Object.create(St.prototype),{constructor:$n,isInstancedBufferGeometry:!0,copy:function(t){return St.prototype.copy.call(this,t),this.maxInstancedCount=t.maxInstancedCount,this},clone:function(){return(new this.constructor).copy(this)}}),Object.defineProperties(tr.prototype,{count:{get:function(){return this.data.count}},array:{get:function(){return this.data.array}}}),Object.assign(tr.prototype,{isInterleavedBufferAttribute:!0,setX:function(t,e){return this.data.array[t*this.data.stride+this.offset]=e,this},setY:function(t,e){return this.data.array[t*this.data.stride+this.offset+1]=e,this},setZ:function(t,e){return this.data.array[t*this.data.stride+this.offset+2]=e,this},setW:function(t,e){return this.data.array[t*this.data.stride+this.offset+3]=e,this},getX:function(t){return this.data.array[t*this.data.stride+this.offset]},getY:function(t){return this.data.array[t*this.data.stride+this.offset+1]},getZ:function(t){return this.data.array[t*this.data.stride+this.offset+2]},getW:function(t){return this.data.array[t*this.data.stride+this.offset+3]},setXY:function(t,e,i){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=i,this},setXYZ:function(t,e,i,n){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=i,this.data.array[t+2]=n,this},setXYZW:function(t,e,i,n,r){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=i,this.data.array[t+2]=n,this.data.array[t+3]=r,this}}),Object.defineProperty(er.prototype,\"needsUpdate\",{set:function(t){!0===t&&this.version++}}),Object.assign(er.prototype,{isInterleavedBuffer:!0,setArray:function(t){if(Array.isArray(t))throw new TypeError(\"THREE.BufferAttribute: array should be a Typed Array.\");this.count=void 0!==t?t.length/this.stride:0,this.array=t},setDynamic:function(t){return this.dynamic=t,this},copy:function(t){return this.array=new t.array.constructor(t.array),this.count=t.count,this.stride=t.stride,this.dynamic=t.dynamic,this},copyAt:function(t,e,i){t*=this.stride,i*=e.stride;for(var n=0,r=this.stride;n<r;n++)this.array[t+n]=e.array[i+n];return this},set:function(t,e){return void 0===e&&(e=0),this.array.set(t,e),this},clone:function(){return(new this.constructor).copy(this)},onUpload:function(t){return this.onUploadCallback=t,this}}),ir.prototype=Object.assign(Object.create(er.prototype),{constructor:ir,isInstancedInterleavedBuffer:!0,copy:function(t){return er.prototype.copy.call(this,t),this.meshPerAttribute=t.meshPerAttribute,this}}),nr.prototype=Object.assign(Object.create(ft.prototype),{constructor:nr,isInstancedBufferAttribute:!0,copy:function(t){return ft.prototype.copy.call(this,t),this.meshPerAttribute=t.meshPerAttribute,this}}),Object.assign(rr.prototype,{linePrecision:1,set:function(t,e){this.ray.set(t,e)},setFromCamera:function(t,e){e&&e.isPerspectiveCamera?(this.ray.origin.setFromMatrixPosition(e.matrixWorld),this.ray.direction.set(t.x,t.y,.5).unproject(e).sub(this.ray.origin).normalize()):e&&e.isOrthographicCamera?(this.ray.origin.set(t.x,t.y,(e.near+e.far)/(e.near-e.far)).unproject(e),this.ray.direction.set(0,0,-1).transformDirection(e.matrixWorld)):console.error(\"THREE.Raycaster: Unsupported camera type.\")},intersectObject:function(t,e){var i=[];return or(t,this,i,e),i.sort(ar),i},intersectObjects:function(t,e){var i=[];if(!1===Array.isArray(t))return console.warn(\"THREE.Raycaster.intersectObjects: objects is not an Array.\"),i;for(var n=0,r=t.length;n<r;n++)or(t[n],this,i,e);return i.sort(ar),i}}),Object.assign(sr.prototype,{start:function(){this.startTime=(\"undefined\"==typeof performance?Date:performance).now(),this.oldTime=this.startTime,this.elapsedTime=0,this.running=!0},stop:function(){this.getElapsedTime(),this.running=!1,this.autoStart=!1},getElapsedTime:function(){return this.getDelta(),this.elapsedTime},getDelta:function(){var t=0;if(this.autoStart&&!this.running)return this.start(),0;if(this.running){var e=(\"undefined\"==typeof performance?Date:performance).now();t=(e-this.oldTime)/1e3,this.oldTime=e,this.elapsedTime+=t}return t}}),Object.assign(cr.prototype,{set:function(t,e,i){return this.radius=t,this.phi=e,this.theta=i,this},clone:function(){return(new this.constructor).copy(this)},copy:function(t){return this.radius=t.radius,this.phi=t.phi,this.theta=t.theta,this},makeSafe:function(){return this.phi=Math.max(1e-6,Math.min(Math.PI-1e-6,this.phi)),this},setFromVector3:function(t){return this.radius=t.length(),0===this.radius?(this.theta=0,this.phi=0):(this.theta=Math.atan2(t.x,t.z),this.phi=Math.acos(ms.clamp(t.y/this.radius,-1,1))),this}}),Object.assign(hr.prototype,{set:function(t,e,i){return this.radius=t,this.theta=e,this.y=i,this},clone:function(){return(new this.constructor).copy(this)},copy:function(t){return this.radius=t.radius,this.theta=t.theta,this.y=t.y,this},setFromVector3:function(t){return this.radius=Math.sqrt(t.x*t.x+t.z*t.z),this.theta=Math.atan2(t.x,t.z),this.y=t.y,this}}),lr.prototype=Object.create(ht.prototype),lr.prototype.constructor=lr,lr.prototype.isImmediateRenderObject=!0,ur.prototype=Object.create(De.prototype),ur.prototype.constructor=ur,ur.prototype.update=function(){var t=new a,e=new a,i=new o;return function(){var n=[\"a\",\"b\",\"c\"];this.object.updateMatrixWorld(!0),i.getNormalMatrix(this.object.matrixWorld);var r=this.object.matrixWorld,a=this.geometry.attributes.position,o=this.object.geometry;if(o&&o.isGeometry)for(var s=o.vertices,c=o.faces,h=0,l=0,u=c.length;l<u;l++)for(var p=c[l],d=0,f=p.vertexNormals.length;d<f;d++){var m=s[p[n[d]]],g=p.vertexNormals[d];t.copy(m).applyMatrix4(r),e.copy(g).applyMatrix3(i).normalize().multiplyScalar(this.size).add(t),a.setXYZ(h,t.x,t.y,t.z),h+=1,a.setXYZ(h,e.x,e.y,e.z),h+=1}else if(o&&o.isBufferGeometry)for(var v=o.attributes.position,y=o.attributes.normal,h=0,d=0,f=v.count;d<f;d++)t.set(v.getX(d),v.getY(d),v.getZ(d)).applyMatrix4(r),e.set(y.getX(d),y.getY(d),y.getZ(d)),e.applyMatrix3(i).normalize().multiplyScalar(this.size).add(t),a.setXYZ(h,t.x,t.y,t.z),h+=1,a.setXYZ(h,e.x,e.y,e.z),h+=1;a.needsUpdate=!0}}(),pr.prototype=Object.create(ht.prototype),pr.prototype.constructor=pr,pr.prototype.dispose=function(){this.cone.geometry.dispose(),this.cone.material.dispose()},pr.prototype.update=function(){var t=new a,e=new a;return function(){this.light.updateMatrixWorld();var i=this.light.distance?this.light.distance:1e3,n=i*Math.tan(this.light.angle);this.cone.scale.set(n,n,i),t.setFromMatrixPosition(this.light.matrixWorld),e.setFromMatrixPosition(this.light.target.matrixWorld),this.cone.lookAt(e.sub(t)),void 0!==this.color?this.cone.material.color.set(this.color):this.cone.material.color.copy(this.light.color)}}(),fr.prototype=Object.create(De.prototype),fr.prototype.constructor=fr,fr.prototype.updateMatrixWorld=function(){var t=new a,e=new n,i=new n;return function(n){var r=this.bones,a=this.geometry,o=a.getAttribute(\"position\");i.getInverse(this.root.matrixWorld);for(var s=0,c=0;s<r.length;s++){var h=r[s];h.parent&&h.parent.isBone&&(e.multiplyMatrices(i,h.matrixWorld),t.setFromMatrixPosition(e),o.setXYZ(c,t.x,t.y,t.z),e.multiplyMatrices(i,h.parent.matrixWorld),t.setFromMatrixPosition(e),o.setXYZ(c+1,t.x,t.y,t.z),c+=2)}a.getAttribute(\"position\").needsUpdate=!0,ht.prototype.updateMatrixWorld.call(this,n)}}(),mr.prototype=Object.create(Nt.prototype),mr.prototype.constructor=mr,mr.prototype.dispose=function(){this.geometry.dispose(),this.material.dispose()},mr.prototype.update=function(){void 0!==this.color?this.material.color.set(this.color):this.material.color.copy(this.light.color)},gr.prototype=Object.create(ht.prototype),gr.prototype.constructor=gr,gr.prototype.dispose=function(){this.children[0].geometry.dispose(),this.children[0].material.dispose()},gr.prototype.update=function(){var t=.5*this.light.width,e=.5*this.light.height,i=this.line.geometry.attributes.position,n=i.array;n[0]=t,n[1]=-e,n[2]=0,n[3]=t,n[4]=e,n[5]=0,n[6]=-t,n[7]=e,n[8]=0,n[9]=-t,n[10]=-e,n[11]=0,n[12]=t,n[13]=-e,n[14]=0,i.needsUpdate=!0,void 0!==this.color?this.line.material.color.set(this.color):this.line.material.color.copy(this.light.color)},vr.prototype=Object.create(ht.prototype),vr.prototype.constructor=vr,vr.prototype.dispose=function(){this.children[0].geometry.dispose(),this.children[0].material.dispose()},vr.prototype.update=function(){var t=new a,e=new q,i=new q;return function(){var n=this.children[0];if(void 0!==this.color)this.material.color.set(this.color);else{var r=n.geometry.getAttribute(\"color\");e.copy(this.light.color),i.copy(this.light.groundColor);for(var a=0,o=r.count;a<o;a++){var s=a<o/2?e:i;r.setXYZ(a,s.r,s.g,s.b)}r.needsUpdate=!0}n.lookAt(t.setFromMatrixPosition(this.light.matrixWorld).negate())}}(),yr.prototype=Object.create(De.prototype),yr.prototype.constructor=yr,xr.prototype=Object.create(De.prototype),xr.prototype.constructor=xr,br.prototype=Object.create(De.prototype),br.prototype.constructor=br,br.prototype.update=function(){var t=new a,e=new a,i=new o;return function(){this.object.updateMatrixWorld(!0),i.getNormalMatrix(this.object.matrixWorld);for(var n=this.object.matrixWorld,r=this.geometry.attributes.position,a=this.object.geometry,o=a.vertices,s=a.faces,c=0,h=0,l=s.length;h<l;h++){var u=s[h],p=u.normal;t.copy(o[u.a]).add(o[u.b]).add(o[u.c]).divideScalar(3).applyMatrix4(n),e.copy(p).applyMatrix3(i).normalize().multiplyScalar(this.size).add(t),r.setXYZ(c,t.x,t.y,t.z),c+=1,r.setXYZ(c,e.x,e.y,e.z),c+=1}r.needsUpdate=!0}}(),_r.prototype=Object.create(ht.prototype),_r.prototype.constructor=_r,_r.prototype.dispose=function(){this.lightPlane.geometry.dispose(),this.lightPlane.material.dispose(),this.targetLine.geometry.dispose(),this.targetLine.material.dispose()},_r.prototype.update=function(){var t=new a,e=new a,i=new a;return function(){t.setFromMatrixPosition(this.light.matrixWorld),e.setFromMatrixPosition(this.light.target.matrixWorld),i.subVectors(e,t),this.lightPlane.lookAt(i),void 0!==this.color?(this.lightPlane.material.color.set(this.color),this.targetLine.material.color.set(this.color)):(this.lightPlane.material.color.copy(this.light.color),this.targetLine.material.color.copy(this.light.color)),this.targetLine.lookAt(i),this.targetLine.scale.z=i.length()}}(),wr.prototype=Object.create(De.prototype),wr.prototype.constructor=wr,wr.prototype.update=function(){function t(t,a,o,s){n.set(a,o,s).unproject(r);var c=i[t];if(void 0!==c)for(var h=e.getAttribute(\"position\"),l=0,u=c.length;l<u;l++)h.setXYZ(c[l],n.x,n.y,n.z)}var e,i,n=new a,r=new lt;return function(){e=this.geometry,i=this.pointMap;r.projectionMatrix.copy(this.camera.projectionMatrix),t(\"c\",0,0,-1),t(\"t\",0,0,1),t(\"n1\",-1,-1,-1),t(\"n2\",1,-1,-1),t(\"n3\",-1,1,-1),t(\"n4\",1,1,-1),t(\"f1\",-1,-1,1),t(\"f2\",1,-1,1),t(\"f3\",-1,1,1),t(\"f4\",1,1,1),t(\"u1\",.7,1.1,-1),t(\"u2\",-.7,1.1,-1),t(\"u3\",0,2,-1),t(\"cf1\",-1,0,1),t(\"cf2\",1,0,1),t(\"cf3\",0,-1,1),t(\"cf4\",0,1,1),t(\"cn1\",-1,0,-1),t(\"cn2\",1,0,-1),t(\"cn3\",0,-1,-1),t(\"cn4\",0,1,-1),e.getAttribute(\"position\").needsUpdate=!0}}(),Mr.prototype=Object.create(De.prototype),Mr.prototype.constructor=Mr,Mr.prototype.update=function(){var t=new et;return function(e){if(void 0!==e&&console.warn(\"THREE.BoxHelper: .update() has no longer arguments.\"),void 0!==this.object&&t.setFromObject(this.object),!t.isEmpty()){var i=t.min,n=t.max,r=this.geometry.attributes.position,a=r.array;a[0]=n.x,a[1]=n.y,a[2]=n.z,a[3]=i.x,a[4]=n.y,a[5]=n.z,a[6]=i.x,a[7]=i.y,a[8]=n.z,a[9]=n.x,a[10]=i.y,a[11]=n.z,a[12]=n.x,a[13]=n.y,a[14]=i.z,a[15]=i.x,a[16]=n.y,a[17]=i.z,a[18]=i.x,a[19]=i.y,a[20]=i.z,a[21]=n.x,a[22]=i.y,a[23]=i.z,r.needsUpdate=!0,this.geometry.computeBoundingSphere()}}}(),Mr.prototype.setFromObject=function(t){return this.object=t,this.update(),this},Er.prototype=Object.create(De.prototype),Er.prototype.constructor=Er,Er.prototype.updateMatrixWorld=function(t){var e=this.box;e.isEmpty()||(e.getCenter(this.position),e.getSize(this.scale),this.scale.multiplyScalar(.5),ht.prototype.updateMatrixWorld.call(this,t))},Tr.prototype=Object.create(Ue.prototype),Tr.prototype.constructor=Tr,Tr.prototype.updateMatrixWorld=function(t){var e=-this.plane.constant;Math.abs(e)<1e-8&&(e=1e-8),this.scale.set(.5*this.size,.5*this.size,e),this.lookAt(this.plane.normal),ht.prototype.updateMatrixWorld.call(this,t)};var qs,Ys;Sr.prototype=Object.create(ht.prototype),Sr.prototype.constructor=Sr,Sr.prototype.setDirection=function(){var t,e=new a;return function(i){i.y>.99999?this.quaternion.set(0,0,0,1):i.y<-.99999?this.quaternion.set(1,0,0,0):(e.set(i.z,0,-i.x).normalize(),t=Math.acos(i.y),this.quaternion.setFromAxisAngle(e,t))}}(),Sr.prototype.setLength=function(t,e,i){void 0===e&&(e=.2*t),void 0===i&&(i=.2*e),this.line.scale.set(1,Math.max(0,t-e),1),this.line.updateMatrix(),this.cone.scale.set(i,e,i),this.cone.position.y=t,this.cone.updateMatrix()},Sr.prototype.setColor=function(t){this.line.material.color.copy(t),this.cone.material.color.copy(t)},Ar.prototype=Object.create(De.prototype),Ar.prototype.constructor=Ar;var Zs=new a,Js=new Rr,Qs=new Rr,Ks=new Rr;Lr.prototype=Object.create(An.prototype),Lr.prototype.constructor=Lr,Lr.prototype.isCatmullRomCurve3=!0,Lr.prototype.getPoint=function(t,e){var i=e||new a,n=this.points,r=n.length,o=(r-(this.closed?0:1))*t,s=Math.floor(o),c=o-s;this.closed?s+=s>0?0:(Math.floor(Math.abs(s)/n.length)+1)*n.length:0===c&&s===r-1&&(s=r-2,c=1);var h,l,u,p;if(this.closed||s>0?h=n[(s-1)%r]:(Zs.subVectors(n[0],n[1]).add(n[0]),h=Zs),l=n[s%r],u=n[(s+1)%r],this.closed||s+2<r?p=n[(s+2)%r]:(Zs.subVectors(n[r-1],n[r-2]).add(n[r-1]),p=Zs),\"centripetal\"===this.curveType||\"chordal\"===this.curveType){var d=\"chordal\"===this.curveType?.5:.25,f=Math.pow(h.distanceToSquared(l),d),m=Math.pow(l.distanceToSquared(u),d),g=Math.pow(u.distanceToSquared(p),d);m<1e-4&&(m=1),f<1e-4&&(f=m),g<1e-4&&(g=m),Js.initNonuniformCatmullRom(h.x,l.x,u.x,p.x,f,m,g),Qs.initNonuniformCatmullRom(h.y,l.y,u.y,p.y,f,m,g),Ks.initNonuniformCatmullRom(h.z,l.z,u.z,p.z,f,m,g)}else\"catmullrom\"===this.curveType&&(Js.initCatmullRom(h.x,l.x,u.x,p.x,this.tension),Qs.initCatmullRom(h.y,l.y,u.y,p.y,this.tension),Ks.initCatmullRom(h.z,l.z,u.z,p.z,this.tension));return i.set(Js.calc(c),Qs.calc(c),Ks.calc(c)),i},Lr.prototype.copy=function(t){An.prototype.copy.call(this,t),this.points=[];for(var e=0,i=t.points.length;e<i;e++){var n=t.points[e];this.points.push(n.clone())}return this.closed=t.closed,this.curveType=t.curveType,this.tension=t.tension,this},Pr.prototype=Object.create(An.prototype),Pr.prototype.constructor=Pr,Pr.prototype.isCubicBezierCurve3=!0,Pr.prototype.getPoint=function(t,e){var i=e||new a,n=this.v0,r=this.v1,o=this.v2,s=this.v3;return i.set(Sn(t,n.x,r.x,o.x,s.x),Sn(t,n.y,r.y,o.y,s.y),Sn(t,n.z,r.z,o.z,s.z)),i},Pr.prototype.copy=function(t){return An.prototype.copy.call(this,t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this.v3.copy(t.v3),this},Cr.prototype=Object.create(An.prototype),Cr.prototype.constructor=Cr,Cr.prototype.isQuadraticBezierCurve3=!0,Cr.prototype.getPoint=function(t,e){var i=e||new a,n=this.v0,r=this.v1,o=this.v2;return i.set(_n(t,n.x,r.x,o.x),_n(t,n.y,r.y,o.y),_n(t,n.z,r.z,o.z)),i},Cr.prototype.copy=function(t){return An.prototype.copy.call(this,t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this},Ir.prototype=Object.create(An.prototype),Ir.prototype.constructor=Ir,Ir.prototype.isLineCurve3=!0,Ir.prototype.getPoint=function(t,e){var i=e||new a;return 1===t?i.copy(this.v2):(i.copy(this.v2).sub(this.v1),i.multiplyScalar(t).add(this.v1)),i},Ir.prototype.getPointAt=function(t,e){return this.getPoint(t,e)},Ir.prototype.copy=function(t){return An.prototype.copy.call(this,t),this.v1.copy(t.v1),this.v2.copy(t.v2),this},Ur.prototype=Object.create(Pn.prototype),Ur.prototype.constructor=Ur,Ur.prototype.isArcCurve=!0;var $s={createMultiMaterialObject:function(t,e){for(var i=new Be,n=0,r=e.length;n<r;n++)i.add(new Nt(t,e[n]));return i},detach:function(t,e,i){t.applyMatrix(e.matrixWorld),e.remove(t),i.add(t)},attach:function(t,e,i){t.applyMatrix((new n).getInverse(i.matrixWorld)),e.remove(t),i.add(t)}};An.create=function(t,e){return console.log(\"THREE.Curve.create() has been deprecated\"),t.prototype=Object.create(An.prototype),t.prototype.constructor=t,t.prototype.getPoint=e,t},Object.assign(Ln.prototype,{createPointsGeometry:function(t){console.warn(\"THREE.CurvePath: .createPointsGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.\");var e=this.getPoints(t);return this.createGeometry(e)},createSpacedPointsGeometry:function(t){console.warn(\"THREE.CurvePath: .createSpacedPointsGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.\");var e=this.getSpacedPoints(t);return this.createGeometry(e)},createGeometry:function(t){console.warn(\"THREE.CurvePath: .createGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.\");for(var e=new dt,i=0,n=t.length;i<n;i++){var r=t[i];e.vertices.push(new a(r.x,r.y,r.z||0))}return e}}),Object.assign(Dn.prototype,{fromPoints:function(t){console.warn(\"THREE.Path: .fromPoints() has been renamed to .setFromPoints().\"),this.setFromPoints(t)}}),ta.prototype=Object.create(Lr.prototype),ea.prototype=Object.create(Lr.prototype),ia.prototype=Object.create(Lr.prototype),Object.assign(ia.prototype,{initFromArray:function(){console.error(\"THREE.Spline: .initFromArray() has been removed.\")},getControlPointsArray:function(){console.error(\"THREE.Spline: .getControlPointsArray() has been removed.\")},reparametrizeByArcLength:function(){console.error(\"THREE.Spline: .reparametrizeByArcLength() has been removed.\")}}),yr.prototype.setColors=function(){console.error(\"THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.\")},fr.prototype.update=function(){console.error(\"THREE.SkeletonHelper: update() no longer needs to be called.\")},Object.assign(Y.prototype,{center:function(t){return console.warn(\"THREE.Box2: .center() has been renamed to .getCenter().\"),this.getCenter(t)},empty:function(){return console.warn(\"THREE.Box2: .empty() has been renamed to .isEmpty().\"),this.isEmpty()},isIntersectionBox:function(t){return console.warn(\"THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox().\"),this.intersectsBox(t)},size:function(t){return console.warn(\"THREE.Box2: .size() has been renamed to .getSize().\"),this.getSize(t)}}),Object.assign(et.prototype,{center:function(t){return console.warn(\"THREE.Box3: .center() has been renamed to .getCenter().\"),this.getCenter(t)},empty:function(){return console.warn(\"THREE.Box3: .empty() has been renamed to .isEmpty().\"),this.isEmpty()},isIntersectionBox:function(t){return console.warn(\"THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox().\"),this.intersectsBox(t)},isIntersectionSphere:function(t){return console.warn(\"THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere().\"),this.intersectsSphere(t)},size:function(t){return console.warn(\"THREE.Box3: .size() has been renamed to .getSize().\"),this.getSize(t)}}),Dt.prototype.center=function(t){return console.warn(\"THREE.Line3: .center() has been renamed to .getCenter().\"),this.getCenter(t)},Object.assign(ms,{random16:function(){return console.warn(\"THREE.Math: .random16() has been deprecated. Use Math.random() instead.\"),Math.random()},nearestPowerOfTwo:function(t){return console.warn(\"THREE.Math: .nearestPowerOfTwo() has been renamed to .floorPowerOfTwo().\"),ms.floorPowerOfTwo(t)},nextPowerOfTwo:function(t){return console.warn(\"THREE.Math: .nextPowerOfTwo() has been renamed to .ceilPowerOfTwo().\"),ms.ceilPowerOfTwo(t)}}),Object.assign(o.prototype,{flattenToArrayOffset:function(t,e){return console.warn(\"THREE.Matrix3: .flattenToArrayOffset() has been deprecated. Use .toArray() instead.\"),this.toArray(t,e)},multiplyVector3:function(t){return console.warn(\"THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead.\"),t.applyMatrix3(this)},multiplyVector3Array:function(){console.error(\"THREE.Matrix3: .multiplyVector3Array() has been removed.\")},applyToBuffer:function(t){return console.warn(\"THREE.Matrix3: .applyToBuffer() has been removed. Use matrix.applyToBufferAttribute( attribute ) instead.\"),this.applyToBufferAttribute(t)},applyToVector3Array:function(){console.error(\"THREE.Matrix3: .applyToVector3Array() has been removed.\")}}),Object.assign(n.prototype,{extractPosition:function(t){return console.warn(\"THREE.Matrix4: .extractPosition() has been renamed to .copyPosition().\"),this.copyPosition(t)},flattenToArrayOffset:function(t,e){return console.warn(\"THREE.Matrix4: .flattenToArrayOffset() has been deprecated. Use .toArray() instead.\"),this.toArray(t,e)},getPosition:function(){var t;return function(){return void 0===t&&(t=new a),console.warn(\"THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead.\"),t.setFromMatrixColumn(this,3)}}(),setRotationFromQuaternion:function(t){return console.warn(\"THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion().\"),this.makeRotationFromQuaternion(t)},multiplyToArray:function(){console.warn(\"THREE.Matrix4: .multiplyToArray() has been removed.\")},multiplyVector3:function(t){return console.warn(\"THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) instead.\"),t.applyMatrix4(this)},multiplyVector4:function(t){return console.warn(\"THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead.\"),t.applyMatrix4(this)},multiplyVector3Array:function(){console.error(\"THREE.Matrix4: .multiplyVector3Array() has been removed.\")},rotateAxis:function(t){console.warn(\"THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead.\"),t.transformDirection(this)},crossVector:function(t){return console.warn(\"THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead.\"),t.applyMatrix4(this)},translate:function(){console.error(\"THREE.Matrix4: .translate() has been removed.\")},rotateX:function(){console.error(\"THREE.Matrix4: .rotateX() has been removed.\")},rotateY:function(){console.error(\"THREE.Matrix4: .rotateY() has been removed.\")},rotateZ:function(){console.error(\"THREE.Matrix4: .rotateZ() has been removed.\")},rotateByAxis:function(){console.error(\"THREE.Matrix4: .rotateByAxis() has been removed.\")},applyToBuffer:function(t){return console.warn(\"THREE.Matrix4: .applyToBuffer() has been removed. Use matrix.applyToBufferAttribute( attribute ) instead.\"),this.applyToBufferAttribute(t)},applyToVector3Array:function(){console.error(\"THREE.Matrix4: .applyToVector3Array() has been removed.\")},makeFrustum:function(t,e,i,n,r,a){return console.warn(\"THREE.Matrix4: .makeFrustum() has been removed. Use .makePerspective( left, right, top, bottom, near, far ) instead.\"),this.makePerspective(t,e,n,i,r,a)}}),nt.prototype.isIntersectionLine=function(t){return console.warn(\"THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine().\"),this.intersectsLine(t)},r.prototype.multiplyVector3=function(t){return console.warn(\"THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead.\"),t.applyQuaternion(this)},Object.assign(Ut.prototype,{isIntersectionBox:function(t){return console.warn(\"THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox().\"),this.intersectsBox(t)},isIntersectionPlane:function(t){return console.warn(\"THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane().\"),this.intersectsPlane(t)},isIntersectionSphere:function(t){return console.warn(\"THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere().\"),this.intersectsSphere(t)}}),Object.assign(On.prototype,{extractAllPoints:function(t){return console.warn(\"THREE.Shape: .extractAllPoints() has been removed. Use .extractPoints() instead.\"),this.extractPoints(t)},extrude:function(t){return console.warn(\"THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead.\"),new si(this,t)},makeGeometry:function(t){return console.warn(\"THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead.\"),new vi(this,t)}}),Object.assign(i.prototype,{fromAttribute:function(t,e,i){return console.warn(\"THREE.Vector2: .fromAttribute() has been renamed to .fromBufferAttribute().\"),this.fromBufferAttribute(t,e,i)},distanceToManhattan:function(t){return console.warn(\"THREE.Vector2: .distanceToManhattan() has been renamed to .manhattanDistanceTo().\"),this.manhattanDistanceTo(t)},lengthManhattan:function(){return console.warn(\"THREE.Vector2: .lengthManhattan() has been renamed to .manhattanLength().\"),this.manhattanLength()}}),Object.assign(a.prototype,{setEulerFromRotationMatrix:function(){console.error(\"THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.\")},setEulerFromQuaternion:function(){console.error(\"THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.\")},getPositionFromMatrix:function(t){return console.warn(\"THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition().\"),this.setFromMatrixPosition(t)},getScaleFromMatrix:function(t){return console.warn(\"THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale().\"),this.setFromMatrixScale(t)},getColumnFromMatrix:function(t,e){return console.warn(\"THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn().\"),this.setFromMatrixColumn(e,t)},applyProjection:function(t){return console.warn(\"THREE.Vector3: .applyProjection() has been removed. Use .applyMatrix4( m ) instead.\"),this.applyMatrix4(t)},fromAttribute:function(t,e,i){return console.warn(\"THREE.Vector3: .fromAttribute() has been renamed to .fromBufferAttribute().\"),this.fromBufferAttribute(t,e,i)},distanceToManhattan:function(t){return console.warn(\"THREE.Vector3: .distanceToManhattan() has been renamed to .manhattanDistanceTo().\"),this.manhattanDistanceTo(t)},lengthManhattan:function(){return console.warn(\"THREE.Vector3: .lengthManhattan() has been renamed to .manhattanLength().\"),this.manhattanLength()}}),Object.assign(c.prototype,{fromAttribute:function(t,e,i){return console.warn(\"THREE.Vector4: .fromAttribute() has been renamed to .fromBufferAttribute().\"),this.fromBufferAttribute(t,e,i)},lengthManhattan:function(){return console.warn(\"THREE.Vector4: .lengthManhattan() has been renamed to .manhattanLength().\"),this.manhattanLength()}}),dt.prototype.computeTangents=function(){console.warn(\"THREE.Geometry: .computeTangents() has been removed.\")},Object.assign(ht.prototype,{getChildByName:function(t){return console.warn(\"THREE.Object3D: .getChildByName() has been renamed to .getObjectByName().\"),this.getObjectByName(t)},renderDepth:function(){console.warn(\"THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.\")},translate:function(t,e){return console.warn(\"THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead.\"),this.translateOnAxis(e,t)}}),Object.defineProperties(ht.prototype,{eulerOrder:{get:function(){return console.warn(\"THREE.Object3D: .eulerOrder is now .rotation.order.\"),this.rotation.order},set:function(t){console.warn(\"THREE.Object3D: .eulerOrder is now .rotation.order.\"),this.rotation.order=t}},useQuaternion:{get:function(){console.warn(\"THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.\")},set:function(){console.warn(\"THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.\")}}}),Object.defineProperties(Re.prototype,{objects:{get:function(){return console.warn(\"THREE.LOD: .objects has been renamed to .levels.\"),this.levels}}}),Object.defineProperty(Le.prototype,\"useVertexTexture\",{get:function(){console.warn(\"THREE.Skeleton: useVertexTexture has been removed.\")},set:function(){console.warn(\"THREE.Skeleton: useVertexTexture has been removed.\")}}),Object.defineProperty(An.prototype,\"__arcLengthDivisions\",{get:function(){return console.warn(\"THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.\"),this.arcLengthDivisions},set:function(t){console.warn(\"THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.\"),this.arcLengthDivisions=t}}),me.prototype.setLens=function(t,e){console.warn(\"THREE.PerspectiveCamera.setLens is deprecated. Use .setFocalLength and .filmGauge for a photographic setup.\"),void 0!==e&&(this.filmGauge=e),this.setFocalLength(t)},Object.defineProperties(Vi.prototype,{onlyShadow:{set:function(){console.warn(\"THREE.Light: .onlyShadow has been removed.\")}},shadowCameraFov:{set:function(t){console.warn(\"THREE.Light: .shadowCameraFov is now .shadow.camera.fov.\"),this.shadow.camera.fov=t}},shadowCameraLeft:{set:function(t){console.warn(\"THREE.Light: .shadowCameraLeft is now .shadow.camera.left.\"),this.shadow.camera.left=t}},shadowCameraRight:{set:function(t){console.warn(\"THREE.Light: .shadowCameraRight is now .shadow.camera.right.\"),this.shadow.camera.right=t}},shadowCameraTop:{set:function(t){console.warn(\"THREE.Light: .shadowCameraTop is now .shadow.camera.top.\"),this.shadow.camera.top=t}},shadowCameraBottom:{set:function(t){console.warn(\"THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom.\"),this.shadow.camera.bottom=t}},shadowCameraNear:{set:function(t){console.warn(\"THREE.Light: .shadowCameraNear is now .shadow.camera.near.\"),this.shadow.camera.near=t}},shadowCameraFar:{set:function(t){console.warn(\"THREE.Light: .shadowCameraFar is now .shadow.camera.far.\"),this.shadow.camera.far=t}},shadowCameraVisible:{set:function(){console.warn(\"THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.\")}},shadowBias:{set:function(t){console.warn(\"THREE.Light: .shadowBias is now .shadow.bias.\"),this.shadow.bias=t}},shadowDarkness:{set:function(){console.warn(\"THREE.Light: .shadowDarkness has been removed.\")}},shadowMapWidth:{set:function(t){console.warn(\"THREE.Light: .shadowMapWidth is now .shadow.mapSize.width.\"),this.shadow.mapSize.width=t}},shadowMapHeight:{set:function(t){console.warn(\"THREE.Light: .shadowMapHeight is now .shadow.mapSize.height.\"),this.shadow.mapSize.height=t}}}),Object.defineProperties(ft.prototype,{length:{get:function(){return console.warn(\"THREE.BufferAttribute: .length has been deprecated. Use .count instead.\"),this.array.length}}}),Object.assign(St.prototype,{addIndex:function(t){console.warn(\"THREE.BufferGeometry: .addIndex() has been renamed to .setIndex().\"),this.setIndex(t)},addDrawCall:function(t,e,i){void 0!==i&&console.warn(\"THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset.\"),console.warn(\"THREE.BufferGeometry: .addDrawCall() is now .addGroup().\"),this.addGroup(t,e)},clearDrawCalls:function(){console.warn(\"THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups().\"),this.clearGroups()},computeTangents:function(){console.warn(\"THREE.BufferGeometry: .computeTangents() has been removed.\")},computeOffsets:function(){console.warn(\"THREE.BufferGeometry: .computeOffsets() has been removed.\")}}),Object.defineProperties(St.prototype,{drawcalls:{get:function(){return console.error(\"THREE.BufferGeometry: .drawcalls has been renamed to .groups.\"),this.groups}},offsets:{get:function(){return console.warn(\"THREE.BufferGeometry: .offsets has been renamed to .groups.\"),this.groups}}}),Object.defineProperties(Kn.prototype,{dynamic:{set:function(){console.warn(\"THREE.Uniform: .dynamic has been removed. Use object.onBeforeRender() instead.\")}},onUpdate:{value:function(){return console.warn(\"THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead.\"),this}}}),Object.defineProperties(K.prototype,{wrapAround:{get:function(){console.warn(\"THREE.Material: .wrapAround has been removed.\")},set:function(){console.warn(\"THREE.Material: .wrapAround has been removed.\")}},\nwrapRGB:{get:function(){return console.warn(\"THREE.Material: .wrapRGB has been removed.\"),new q}},shading:{get:function(){console.error(\"THREE.\"+this.type+\": .shading has been removed. Use the boolean .flatShading instead.\")},set:function(t){console.warn(\"THREE.\"+this.type+\": .shading has been removed. Use the boolean .flatShading instead.\"),this.flatShading=1===t}}}),Object.defineProperties(Pi.prototype,{metal:{get:function(){return console.warn(\"THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead.\"),!1},set:function(){console.warn(\"THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead\")}}}),Object.defineProperties(It.prototype,{derivatives:{get:function(){return console.warn(\"THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives.\"),this.extensions.derivatives},set:function(t){console.warn(\"THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives.\"),this.extensions.derivatives=t}}}),Object.assign(_e.prototype,{getCurrentRenderTarget:function(){return console.warn(\"THREE.WebGLRenderer: .getCurrentRenderTarget() is now .getRenderTarget().\"),this.getRenderTarget()},getMaxAnisotropy:function(){return console.warn(\"THREE.WebGLRenderer: .getMaxAnisotropy() is now .capabilities.getMaxAnisotropy().\"),this.capabilities.getMaxAnisotropy()},getPrecision:function(){return console.warn(\"THREE.WebGLRenderer: .getPrecision() is now .capabilities.precision.\"),this.capabilities.precision},resetGLState:function(){return console.warn(\"THREE.WebGLRenderer: .resetGLState() is now .state.reset().\"),this.state.reset()},supportsFloatTextures:function(){return console.warn(\"THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( 'OES_texture_float' ).\"),this.extensions.get(\"OES_texture_float\")},supportsHalfFloatTextures:function(){return console.warn(\"THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( 'OES_texture_half_float' ).\"),this.extensions.get(\"OES_texture_half_float\")},supportsStandardDerivatives:function(){return console.warn(\"THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( 'OES_standard_derivatives' ).\"),this.extensions.get(\"OES_standard_derivatives\")},supportsCompressedTextureS3TC:function(){return console.warn(\"THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( 'WEBGL_compressed_texture_s3tc' ).\"),this.extensions.get(\"WEBGL_compressed_texture_s3tc\")},supportsCompressedTexturePVRTC:function(){return console.warn(\"THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( 'WEBGL_compressed_texture_pvrtc' ).\"),this.extensions.get(\"WEBGL_compressed_texture_pvrtc\")},supportsBlendMinMax:function(){return console.warn(\"THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( 'EXT_blend_minmax' ).\"),this.extensions.get(\"EXT_blend_minmax\")},supportsVertexTextures:function(){return console.warn(\"THREE.WebGLRenderer: .supportsVertexTextures() is now .capabilities.vertexTextures.\"),this.capabilities.vertexTextures},supportsInstancedArrays:function(){return console.warn(\"THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( 'ANGLE_instanced_arrays' ).\"),this.extensions.get(\"ANGLE_instanced_arrays\")},enableScissorTest:function(t){console.warn(\"THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest().\"),this.setScissorTest(t)},initMaterial:function(){console.warn(\"THREE.WebGLRenderer: .initMaterial() has been removed.\")},addPrePlugin:function(){console.warn(\"THREE.WebGLRenderer: .addPrePlugin() has been removed.\")},addPostPlugin:function(){console.warn(\"THREE.WebGLRenderer: .addPostPlugin() has been removed.\")},updateShadowMap:function(){console.warn(\"THREE.WebGLRenderer: .updateShadowMap() has been removed.\")}}),Object.defineProperties(_e.prototype,{shadowMapEnabled:{get:function(){return this.shadowMap.enabled},set:function(t){console.warn(\"THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled.\"),this.shadowMap.enabled=t}},shadowMapType:{get:function(){return this.shadowMap.type},set:function(t){console.warn(\"THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type.\"),this.shadowMap.type=t}},shadowMapCullFace:{get:function(){return this.shadowMap.cullFace},set:function(t){console.warn(\"THREE.WebGLRenderer: .shadowMapCullFace is now .shadowMap.cullFace.\"),this.shadowMap.cullFace=t}}}),Object.defineProperties(at.prototype,{cullFace:{get:function(){return this.renderReverseSided?ma:fa},set:function(t){var e=t!==fa;console.warn(\"WebGLRenderer: .shadowMap.cullFace is deprecated. Set .shadowMap.renderReverseSided to \"+e+\".\"),this.renderReverseSided=e}}}),Object.defineProperties(h.prototype,{wrapS:{get:function(){return console.warn(\"THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.\"),this.texture.wrapS},set:function(t){console.warn(\"THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.\"),this.texture.wrapS=t}},wrapT:{get:function(){return console.warn(\"THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.\"),this.texture.wrapT},set:function(t){console.warn(\"THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.\"),this.texture.wrapT=t}},magFilter:{get:function(){return console.warn(\"THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.\"),this.texture.magFilter},set:function(t){console.warn(\"THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.\"),this.texture.magFilter=t}},minFilter:{get:function(){return console.warn(\"THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.\"),this.texture.minFilter},set:function(t){console.warn(\"THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.\"),this.texture.minFilter=t}},anisotropy:{get:function(){return console.warn(\"THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.\"),this.texture.anisotropy},set:function(t){console.warn(\"THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.\"),this.texture.anisotropy=t}},offset:{get:function(){return console.warn(\"THREE.WebGLRenderTarget: .offset is now .texture.offset.\"),this.texture.offset},set:function(t){console.warn(\"THREE.WebGLRenderTarget: .offset is now .texture.offset.\"),this.texture.offset=t}},repeat:{get:function(){return console.warn(\"THREE.WebGLRenderTarget: .repeat is now .texture.repeat.\"),this.texture.repeat},set:function(t){console.warn(\"THREE.WebGLRenderTarget: .repeat is now .texture.repeat.\"),this.texture.repeat=t}},format:{get:function(){return console.warn(\"THREE.WebGLRenderTarget: .format is now .texture.format.\"),this.texture.format},set:function(t){console.warn(\"THREE.WebGLRenderTarget: .format is now .texture.format.\"),this.texture.format=t}},type:{get:function(){return console.warn(\"THREE.WebGLRenderTarget: .type is now .texture.type.\"),this.texture.type},set:function(t){console.warn(\"THREE.WebGLRenderTarget: .type is now .texture.type.\"),this.texture.type=t}},generateMipmaps:{get:function(){return console.warn(\"THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.\"),this.texture.generateMipmaps},set:function(t){console.warn(\"THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.\"),this.texture.generateMipmaps=t}}}),kn.prototype.load=function(t){console.warn(\"THREE.Audio: .load has been deprecated. Use THREE.AudioLoader instead.\");var e=this;return(new zn).load(t,function(t){e.setBuffer(t)}),this},Wn.prototype.getData=function(){return console.warn(\"THREE.AudioAnalyser: .getData() is now .getFrequencyData().\"),this.getFrequencyData()},Hn.prototype.updateCubeMap=function(t,e){return console.warn(\"THREE.CubeCamera: .updateCubeMap() is now .update().\"),this.update(t,e)};var tc={merge:function(t,e,i){console.warn(\"THREE.GeometryUtils: .merge() has been moved to Geometry. Use geometry.merge( geometry2, matrix, materialIndexOffset ) instead.\");var n;e.isMesh&&(e.matrixAutoUpdate&&e.updateMatrix(),n=e.matrix,e=e.geometry),t.merge(e,n,i)},center:function(t){return console.warn(\"THREE.GeometryUtils: .center() has been moved to Geometry. Use geometry.center() instead.\"),t.center()}},ec={crossOrigin:void 0,loadTexture:function(t,e,i,n){console.warn(\"THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.\");var r=new Hi;r.setCrossOrigin(this.crossOrigin);var a=r.load(t,i,void 0,n);return e&&(a.mapping=e),a},loadTextureCube:function(t,e,i,n){console.warn(\"THREE.ImageUtils.loadTextureCube has been deprecated. Use THREE.CubeTextureLoader() instead.\");var r=new Gi;r.setCrossOrigin(this.crossOrigin);var a=r.load(t,i,void 0,n);return e&&(a.mapping=e),a},loadCompressedTexture:function(){console.error(\"THREE.ImageUtils.loadCompressedTexture has been removed. Use THREE.DDSLoader instead.\")},loadCompressedTextureCube:function(){console.error(\"THREE.ImageUtils.loadCompressedTextureCube has been removed. Use THREE.DDSLoader 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r,a,n,i=[],s=[];for(r=0;r<e.length;r++){Be(We(e[r]),t,i)}for(r=0;r<t.length;r++)for(a=0;a<i.length;a++)if(n=i[a],n.bone.name===t[r].name){s[r]=n,n.processed=!0;break}for(r=0;r<i.length;r++)n=i[r],!1===n.processed&&(s.push(n),n.processed=!0);var o=[],c=[];for(r=0;r<s.length;r++)n=s[r],o.push(n.bone),c.push(n.boneInverse);return new THREE.Skeleton(o,c)}function Be(e,t,r){e.traverse(function(e){if(!0===e.isBone){for(var a,n=0;n<t.length;n++){var i=t[n];if(i.name===e.name){a=i.boneInverse;break}}void 0===a&&(a=new THREE.Matrix4),r.push({bone:e,boneInverse:a,processed:!1})}})}function Ue(e){for(var t=[],r=e.matrix,a=e.nodes,n=e.type,i=e.instanceCameras,s=e.instanceControllers,o=e.instanceLights,c=e.instanceGeometries,l=e.instanceNodes,d=0,u=a.length;d<u;d++)t.push(We(a[d]));for(var d=0,u=i.length;d<u;d++)t.push(oe(i[d]).clone());for(var d=0,u=s.length;d<u;d++)for(var f=s[d],m=S(f.id),h=Ne(m.id),p=ze(h,f.materials),v=f.skeletons,g=m.skin.joints,b=Pe(v,g),y=0,E=p.length;y<E;y++){var N=p[y];N.isSkinnedMesh&&(N.bind(b,m.skin.bindMatrix),N.normalizeSkinWeights()),t.push(N)}for(var d=0,u=o.length;d<u;d++)t.push(fe(o[d]).clone());for(var d=0,u=c.length;d<u;d++)for(var f=c[d],h=Ne(f.id),p=ze(h,f.materials),y=0,E=p.length;y<E;y++)t.push(p[y]);for(var d=0,u=l.length;d<u;d++)t.push(We(l[d]).clone());var N;if(0===a.length&&1===t.length)N=t[0];else{N=\"JOINT\"===n?new THREE.Bone:new THREE.Group;for(var d=0;d<t.length;d++)N.add(t[d])}return N.name=\"JOINT\"===n?e.sid:e.name,N.matrix.copy(r),N.matrix.decompose(N.position,N.quaternion,N.scale),N}function Ve(e,t){for(var r=[],a=0,n=e.length;a<n;a++){var i=t[e[a]];r.push(te(i))}return r}function ze(e,t){var r=[];for(var a in e){var n=e[a],i=Ve(n.materialKeys,t);0===i.length&&(\"lines\"===a||\"linestrips\"===a?i.push(new THREE.LineBasicMaterial):i.push(new THREE.MeshPhongMaterial));var s=void 0!==n.data.attributes.skinIndex;if(s)for(var o=0,c=i.length;o<c;o++)i[o].skinning=!0;var l,d=1===i.length?i[0]:i;switch(a){case\"lines\":l=new THREE.LineSegments(n.data,d);break;case\"linestrips\":l=new THREE.Line(n.data,d);break;case\"triangles\":case\"polylist\":l=s?new THREE.SkinnedMesh(n.data,d):new THREE.Mesh(n.data,d)}r.push(l)}return r}function We(e){return m(ot.nodes[e],Ue)}function Je(e){var t={name:e.getAttribute(\"name\"),children:[]};Se(e);for(var a=r(e,\"node\"),n=0;n<a.length;n++)t.children.push(qe(a[n]));ot.visualScenes[e.getAttribute(\"id\")]=t}function De(e){var t=new THREE.Group;t.name=e.name;for(var r=e.children,a=0;a<r.length;a++){var n=r[a];null===n.id?t.add(Ue(n)):t.add(We(n.id))}return t}function Ge(e){return m(ot.visualScenes[e],De)}var Ke=new THREE.Vector3,Xe=new THREE.Vector3,Qe=new THREE.Quaternion,Ye=new THREE.Matrix4,Ze=new THREE.Vector3;if(console.time(\"THREE.ColladaLoader\"),0===e.length)return{scene:new THREE.Scene};console.time(\"THREE.ColladaLoader: DOMParser\");var $e=(new DOMParser).parseFromString(e,\"application/xml\");console.timeEnd(\"THREE.ColladaLoader: DOMParser\");var et=r($e,\"COLLADA\")[0],tt=et.getAttribute(\"version\");console.log(\"THREE.ColladaLoader: File version\",tt);var rt=function(e){return{unit:l(r(e,\"unit\")[0]),upAxis:d(r(e,\"up_axis\")[0])}}(r(et,\"asset\")[0]),at=new THREE.TextureLoader(this.manager);at.setPath(t).setCrossOrigin(this.crossOrigin);var nt=[],it={},st=0,ot={animations:{},clips:{},controllers:{},images:{},effects:{},materials:{},cameras:{},lights:{},geometries:{},nodes:{},visualScenes:{},kinematicsModels:{},kinematicsScenes:{}};console.time(\"THREE.ColladaLoader: Parse\"),u(et,\"library_animations\",\"animation\",h),u(et,\"library_animation_clips\",\"animation_clip\",R),u(et,\"library_controllers\",\"controller\",_),u(et,\"library_images\",\"image\",q),u(et,\"library_effects\",\"effect\",B),u(et,\"library_materials\",\"material\",$),u(et,\"library_cameras\",\"camera\",re),u(et,\"library_lights\",\"light\",ce),u(et,\"library_geometries\",\"geometry\",me),u(et,\"library_nodes\",\"node\",qe),u(et,\"library_visual_scenes\",\"visual_scene\",Je),u(et,\"library_kinematics_models\",\"kinematics_model\",Te),u(et,\"scene\",\"instance_kinematics_scene\",Me),console.timeEnd(\"THREE.ColladaLoader: Parse\"),console.time(\"THREE.ColladaLoader: Build\"),f(ot.animations,g),f(ot.clips,H),f(ot.controllers,O),f(ot.images,F),f(ot.effects,Y),f(ot.materials,ee),f(ot.cameras,se),f(ot.lights,ue),f(ot.geometries,be),f(ot.visualScenes,De),console.timeEnd(\"THREE.ColladaLoader: Build\"),function(){var e=ot.clips;if(!0===c(e)){if(!1===c(ot.animations)){var t=[];for(var r in ot.animations)for(var a=b(r),n=0,i=a.length;n<i;n++)t.push(a[n]);nt.push(new THREE.AnimationClip(\"default\",-1,t))}}else for(var r in e)nt.push(C(r))}(),function(){var e=Object.keys(ot.kinematicsModels)[0],t=Object.keys(ot.kinematicsScenes)[0],r=Object.keys(ot.visualScenes)[0];if(void 0!==e&&void 0!==t){for(var a=xe(e),n=Oe(t),i=Ge(r),s=n.bindJointAxis,o={},c=0,l=s.length;c<l;c++){var d=s[c],u=et.querySelector('[sid=\"'+d.target+'\"]');if(u){var f=u.parentElement;!function(e,t){var r=t.getAttribute(\"name\"),n=a.joints[e];i.traverse(function(a){a.name===r&&(o[e]={object:a,transforms:Ie(t),joint:n,position:n.zeroPosition})})}(d.jointIndex,f)}}var m=new THREE.Matrix4;it={joints:a&&a.joints,getJointValue:function(e){var t=o[e];if(t)return t.position;console.warn(\"THREE.ColladaLoader: Joint \"+e+\" doesn't exist.\")},setJointValue:function(e,t){var r=o[e];if(r){var a=r.joint;if(t>a.limits.max||t<a.limits.min)console.warn(\"THREE.ColladaLoader: Joint \"+e+\" value \"+t+\" outside of limits (min: \"+a.limits.min+\", max: \"+a.limits.max+\").\");else if(a.static)console.warn(\"THREE.ColladaLoader: Joint \"+e+\" is static.\");else{var n=r.object,i=a.axis,s=r.transforms;Ye.identity();for(var c=0;c<s.length;c++){var l=s[c];if(l.sid&&-1!==l.sid.indexOf(e))switch(a.type){case\"revolute\":Ye.multiply(m.makeRotationAxis(i,THREE.Math.degToRad(t)));break;case\"prismatic\":Ye.multiply(m.makeTranslation(i.x*t,i.y*t,i.z*t));break;default:console.warn(\"THREE.ColladaLoader: Unknown joint type: \"+a.type)}else switch(l.type){case\"matrix\":Ye.multiply(l.obj);break;case\"translate\":Ye.multiply(m.makeTranslation(l.obj.x,l.obj.y,l.obj.z));break;case\"scale\":Ye.scale(l.obj);break;case\"rotate\":Ye.multiply(m.makeRotationAxis(l.obj,l.angle))}}n.matrix.copy(Ye),n.matrix.decompose(n.position,n.quaternion,n.scale),o[e].position=t}}else console.log(\"THREE.ColladaLoader: \"+e+\" does not exist.\")}}}}();var ct=function(e){return Ge(s(r(e,\"instance_visual_scene\")[0].getAttribute(\"url\")))}(r(et,\"scene\")[0]);return\"Z_UP\"===rt.upAxis&&(ct.rotation.x=-Math.PI/2),ct.scale.multiplyScalar(rt.unit),console.timeEnd(\"THREE.ColladaLoader\"),{animations:nt,kinematics:it,library:ot,scene:ct}}};","THREE.GLTFLoader=function(){function e(e){this.manager=void 0!==e?e:THREE.DefaultLoadingManager}function a(){var e={};return{get:function(a){return e[a]},add:function(a,t){e[a]=t},remove:function(a){delete e[a]},removeAll:function(){e={}}}}function t(e){this.name=d.KHR_LIGHTS,this.lights={};var a=e.extensions&&e.extensions[d.KHR_LIGHTS]||{},t=a.lights||{};for(var r in t){var n,s=t[r],i=(new THREE.Color).fromArray(s.color);switch(s.type){case\"directional\":n=new THREE.DirectionalLight(i),n.position.set(0,0,1);break;case\"point\":n=new THREE.PointLight(i);break;case\"spot\":n=new THREE.SpotLight(i),n.position.set(0,0,1);break;case\"ambient\":n=new THREE.AmbientLight(i)}n&&(void 0!==s.constantAttenuation&&(n.intensity=s.constantAttenuation),void 0!==s.linearAttenuation&&(n.distance=1/s.linearAttenuation),void 0!==s.quadraticAttenuation&&(n.decay=s.quadraticAttenuation),void 0!==s.fallOffAngle&&(n.angle=s.fallOffAngle),void 0!==s.fallOffExponent&&console.warn(\"THREE.GLTFLoader:: light.fallOffExponent not currently supported.\"),n.name=s.name||\"light_\"+r,this.lights[r]=n)}}function r(e){this.name=d.KHR_MATERIALS_COMMON}function n(e){this.name=d.KHR_BINARY_GLTF,this.content=null,this.body=null;var a=new DataView(e,0,m);if(this.header={magic:l(new Uint8Array(e.slice(0,4))),version:a.getUint32(4,!0),length:a.getUint32(8,!0)},this.header.magic!==E)throw new Error(\"THREE.GLTFLoader: Unsupported glTF-Binary header.\");if(this.header.version<2)throw new Error(\"THREE.GLTFLoader: Legacy binary file detected. Use GLTFLoader instead.\");for(var t=new DataView(e,m),r=0;r<t.byteLength;){var n=t.getUint32(r,!0);r+=4;var s=t.getUint32(r,!0);if(r+=4,s===f.JSON){var i=new Uint8Array(e,m+r,n);this.content=l(i)}else if(s===f.BIN){var o=m+r;this.body=e.slice(o,o+n)}r+=n}if(null===this.content)throw new Error(\"THREE.GLTFLoader: JSON content not found.\")}function s(){return{name:d.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS,specularGlossinessParams:[\"color\",\"map\",\"lightMap\",\"lightMapIntensity\",\"aoMap\",\"aoMapIntensity\",\"emissive\",\"emissiveIntensity\",\"emissiveMap\",\"bumpMap\",\"bumpScale\",\"normalMap\",\"displacementMap\",\"displacementScale\",\"displacementBias\",\"specularMap\",\"specular\",\"glossinessMap\",\"glossiness\",\"alphaMap\",\"envMap\",\"envMapIntensity\",\"refractionRatio\"],getMaterialType:function(){return THREE.ShaderMaterial},extendParams:function(e,a,t){var r=a.extensions[this.name],n=THREE.ShaderLib.standard,s=THREE.UniformsUtils.clone(n.uniforms),i=[\"#ifdef USE_SPECULARMAP\",\"\\tuniform sampler2D specularMap;\",\"#endif\"].join(\"\\n\"),o=[\"#ifdef USE_GLOSSINESSMAP\",\"\\tuniform sampler2D glossinessMap;\",\"#endif\"].join(\"\\n\"),l=[\"vec3 specularFactor = specular;\",\"#ifdef USE_SPECULARMAP\",\"\\tvec4 texelSpecular = texture2D( specularMap, vUv );\",\"\\t// reads channel RGB, compatible with a glTF Specular-Glossiness (RGBA) texture\",\"\\tspecularFactor *= texelSpecular.rgb;\",\"#endif\"].join(\"\\n\"),u=[\"float glossinessFactor = glossiness;\",\"#ifdef USE_GLOSSINESSMAP\",\"\\tvec4 texelGlossiness = texture2D( glossinessMap, vUv );\",\"\\t// reads channel A, compatible with a glTF Specular-Glossiness (RGBA) texture\",\"\\tglossinessFactor *= texelGlossiness.a;\",\"#endif\"].join(\"\\n\"),c=[\"PhysicalMaterial material;\",\"material.diffuseColor = diffuseColor.rgb;\",\"material.specularRoughness = clamp( 1.0 - glossinessFactor, 0.04, 1.0 );\",\"material.specularColor = specularFactor.rgb;\"].join(\"\\n\"),p=n.fragmentShader.replace(\"#include <specularmap_fragment>\",\"\").replace(\"uniform float roughness;\",\"uniform vec3 specular;\").replace(\"uniform float metalness;\",\"uniform float glossiness;\").replace(\"#include <roughnessmap_pars_fragment>\",i).replace(\"#include <metalnessmap_pars_fragment>\",o).replace(\"#include <roughnessmap_fragment>\",l).replace(\"#include <metalnessmap_fragment>\",u).replace(\"#include <lights_physical_fragment>\",c);delete s.roughness,delete s.metalness,delete s.roughnessMap,delete s.metalnessMap,s.specular={value:(new THREE.Color).setHex(1118481)},s.glossiness={value:.5},s.specularMap={value:null},s.glossinessMap={value:null},e.vertexShader=n.vertexShader,e.fragmentShader=p,e.uniforms=s,e.defines={STANDARD:\"\"},e.color=new THREE.Color(1,1,1),e.opacity=1;var d=[];if(Array.isArray(r.diffuseFactor)){var E=r.diffuseFactor;e.color.fromArray(E),e.opacity=E[3]}if(void 0!==r.diffuseTexture&&d.push(t.assignTexture(e,\"map\",r.diffuseTexture.index)),e.emissive=new THREE.Color(0,0,0),e.glossiness=void 0!==r.glossinessFactor?r.glossinessFactor:1,e.specular=new THREE.Color(1,1,1),Array.isArray(r.specularFactor)&&e.specular.fromArray(r.specularFactor),void 0!==r.specularGlossinessTexture){var m=r.specularGlossinessTexture.index;d.push(t.assignTexture(e,\"glossinessMap\",m)),d.push(t.assignTexture(e,\"specularMap\",m))}return Promise.all(d)},createMaterial:function(e){var a=new THREE.ShaderMaterial({defines:e.defines,vertexShader:e.vertexShader,fragmentShader:e.fragmentShader,uniforms:e.uniforms,fog:!0,lights:!0,opacity:e.opacity,transparent:e.transparent});return a.isGLTFSpecularGlossinessMaterial=!0,a.color=e.color,a.map=void 0===e.map?null:e.map,a.lightMap=null,a.lightMapIntensity=1,a.aoMap=void 0===e.aoMap?null:e.aoMap,a.aoMapIntensity=1,a.emissive=e.emissive,a.emissiveIntensity=1,a.emissiveMap=void 0===e.emissiveMap?null:e.emissiveMap,a.bumpMap=void 0===e.bumpMap?null:e.bumpMap,a.bumpScale=1,a.normalMap=void 0===e.normalMap?null:e.normalMap,e.normalScale&&(a.normalScale=e.normalScale),a.displacementMap=null,a.displacementScale=1,a.displacementBias=0,a.specularMap=void 0===e.specularMap?null:e.specularMap,a.specular=e.specular,a.glossinessMap=void 0===e.glossinessMap?null:e.glossinessMap,a.glossiness=e.glossiness,a.alphaMap=null,a.envMap=void 0===e.envMap?null:e.envMap,a.envMapIntensity=1,a.refractionRatio=.98,a.extensions.derivatives=!0,a},cloneMaterial:function(e){var a=e.clone();a.isGLTFSpecularGlossinessMaterial=!0;for(var t=this.specularGlossinessParams,r=0;r<t.length;r++)a[t[r]]=e[t[r]];return a},refreshUniforms:function(e,a,t,r,n,s){var i=n.uniforms,o=n.defines;i.opacity.value=n.opacity,i.diffuse.value.copy(n.color),i.emissive.value.copy(n.emissive).multiplyScalar(n.emissiveIntensity),i.map.value=n.map,i.specularMap.value=n.specularMap,i.alphaMap.value=n.alphaMap,i.lightMap.value=n.lightMap,i.lightMapIntensity.value=n.lightMapIntensity,i.aoMap.value=n.aoMap,i.aoMapIntensity.value=n.aoMapIntensity;var l;if(n.map?l=n.map:n.specularMap?l=n.specularMap:n.displacementMap?l=n.displacementMap:n.normalMap?l=n.normalMap:n.bumpMap?l=n.bumpMap:n.glossinessMap?l=n.glossinessMap:n.alphaMap?l=n.alphaMap:n.emissiveMap&&(l=n.emissiveMap),void 0!==l){l.isWebGLRenderTarget&&(l=l.texture);var u,c;if(void 0!==l.matrix){if(!0===l.matrixAutoUpdate){u=l.offset,c=l.repeat;var p=l.rotation,d=l.center;l.matrix.setUvTransform(u.x,u.y,c.x,c.y,p,d.x,d.y)}i.uvTransform.value.copy(l.matrix)}else u=l.offset,c=l.repeat,i.offsetRepeat.value.set(u.x,u.y,c.x,c.y)}i.envMap.value=n.envMap,i.envMapIntensity.value=n.envMapIntensity,i.flipEnvMap.value=n.envMap&&n.envMap.isCubeTexture?-1:1,i.refractionRatio.value=n.refractionRatio,i.specular.value.copy(n.specular),i.glossiness.value=n.glossiness,i.glossinessMap.value=n.glossinessMap,i.emissiveMap.value=n.emissiveMap,i.bumpMap.value=n.bumpMap,i.normalMap.value=n.normalMap,i.displacementMap.value=n.displacementMap,i.displacementScale.value=n.displacementScale,i.displacementBias.value=n.displacementBias,null!==i.glossinessMap.value&&void 0===o.USE_GLOSSINESSMAP&&(o.USE_GLOSSINESSMAP=\"\",o.USE_ROUGHNESSMAP=\"\"),null===i.glossinessMap.value&&void 0!==o.USE_GLOSSINESSMAP&&(delete o.USE_GLOSSINESSMAP,delete o.USE_ROUGHNESSMAP)}}}function i(e,a,t){if(!e)return Promise.resolve();var r,n=[];if(\"[object Array]\"===Object.prototype.toString.call(e)){r=[];for(var s=e.length,i=0;i<s;i++){var o=a.call(t||this,e[i],i);o&&(o instanceof Promise?o=o.then(function(e,a){r[e]=a}.bind(this,i)):r[i]=o,n.push(o))}}else{r={};for(var l in e)if(e.hasOwnProperty(l)){var o=a.call(t||this,e[l],l);o&&(o instanceof Promise?o=o.then(function(e,a){r[e]=a}.bind(this,l)):r[l]=o,n.push(o))}}return Promise.all(n).then(function(){return r})}function o(e,a){return\"string\"!=typeof e||\"\"===e?\"\":/^(https?:)?\\/\\//i.test(e)?e:/^data:.*,.*$/i.test(e)?e:/^blob:.*$/i.test(e)?e:a+e}function l(e){if(void 0!==window.TextDecoder)return(new TextDecoder).decode(e);for(var a=\"\",t=0,r=e.length;t<r;t++)a+=String.fromCharCode(e[t]);return a}function u(){return new THREE.MeshStandardMaterial({color:16777215,emissive:0,metalness:1,roughness:1,transparent:!1,depthTest:!0,side:THREE.FrontSide})}function c(e,a,t,r){var n=e.geometry,s=e.material,i=t.targets,o=n.morphAttributes;o.position=[],o.normal=[],s.morphTargets=!0;for(var l=0,u=i.length;l<u;l++){var c,p,d=i[l],E=\"morphTarget\"+l;if(void 0!==d.POSITION){c=r.accessors[d.POSITION].clone();for(var m=n.attributes.position,f=0,h=c.count;f<h;f++)c.setXYZ(f,c.getX(f)+m.getX(f),c.getY(f)+m.getY(f),c.getZ(f)+m.getZ(f))}else n.attributes.position&&(c=n.attributes.position.clone());if(void 0!==c&&(c.name=E,o.position.push(c)),void 0!==d.NORMAL){s.morphNormals=!0,p=r.accessors[d.NORMAL].clone();for(var T=n.attributes.normal,f=0,h=p.count;f<h;f++)p.setXYZ(f,p.getX(f)+T.getX(f),p.getY(f)+T.getY(f),p.getZ(f)+T.getZ(f))}else void 0!==n.attributes.normal&&(p=n.attributes.normal.clone());void 0!==p&&(p.name=E,o.normal.push(p))}if(e.updateMorphTargets(),void 0!==a.weights)for(var l=0,u=a.weights.length;l<u;l++)e.morphTargetInfluences[l]=a.weights[l]}function p(e,t,r){this.json=e||{},this.extensions=t||{},this.options=r||{},this.cache=new a,this.textureLoader=new THREE.TextureLoader(this.options.manager),this.textureLoader.setCrossOrigin(this.options.crossOrigin),this.fileLoader=new THREE.FileLoader(this.options.manager),this.fileLoader.setResponseType(\"arraybuffer\")}e.prototype={constructor:e,crossOrigin:\"Anonymous\",load:function(e,a,t,r){var n=this,s=void 0!==this.path?this.path:THREE.Loader.prototype.extractUrlBase(e),i=new THREE.FileLoader(n.manager);i.setResponseType(\"arraybuffer\"),i.load(e,function(e){try{n.parse(e,s,a,r)}catch(e){void 0!==r&&r(e.constructor===Error?e:new Error(\"THREE.GLTFLoader: Unable to parse model.\"))}},t,r)},setCrossOrigin:function(e){this.crossOrigin=e},setPath:function(e){this.path=e},parse:function(e,a,i,o){var u,c={};if(\"string\"==typeof e)u=e;else{if(l(new Uint8Array(e,0,4))===E){try{c[d.KHR_BINARY_GLTF]=new n(e)}catch(e){return void(o&&o(e))}u=c[d.KHR_BINARY_GLTF].content}else u=l(new Uint8Array(e))}var m=JSON.parse(u);if(void 0===m.asset||m.asset.version[0]<2)return void(o&&o(new Error(\"THREE.GLTFLoader: Unsupported asset. glTF versions >=2.0 are supported.\")));m.extensionsUsed&&(m.extensionsUsed.indexOf(d.KHR_LIGHTS)>=0&&(c[d.KHR_LIGHTS]=new t(m)),m.extensionsUsed.indexOf(d.KHR_MATERIALS_COMMON)>=0&&(c[d.KHR_MATERIALS_COMMON]=new r(m)),m.extensionsUsed.indexOf(d.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS)>=0&&(c[d.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS]=new s)),console.time(\"GLTFLoader\"),new p(m,c,{path:a||this.path||\"\",crossOrigin:this.crossOrigin,manager:this.manager}).parse(function(e,a,t,r){console.timeEnd(\"GLTFLoader\"),i({scene:e,scenes:a,cameras:t,animations:r})},o)}};var d={KHR_BINARY_GLTF:\"KHR_binary_glTF\",KHR_LIGHTS:\"KHR_lights\",KHR_MATERIALS_COMMON:\"KHR_materials_common\",KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS:\"KHR_materials_pbrSpecularGlossiness\"};r.prototype.getMaterialType=function(e){switch(e.extensions[this.name].type){case\"commonBlinn\":case\"commonPhong\":return THREE.MeshPhongMaterial;case\"commonLambert\":return THREE.MeshLambertMaterial;case\"commonConstant\":default:return THREE.MeshBasicMaterial}},r.prototype.extendParams=function(e,a,t){var r=a.extensions[this.name],n=[],s=[];switch(r.type){case\"commonBlinn\":case\"commonPhong\":s.push(\"diffuseFactor\",\"diffuseTexture\",\"specularFactor\",\"specularTexture\",\"shininessFactor\");break;case\"commonLambert\":s.push(\"diffuseFactor\",\"diffuseTexture\")}var i={};return s.forEach(function(e){void 0!==r[e]&&(i[e]=r[e])}),void 0!==i.diffuseFactor&&(e.color=(new THREE.Color).fromArray(i.diffuseFactor),e.opacity=i.diffuseFactor[3]),void 0!==i.diffuseTexture&&n.push(t.assignTexture(e,\"map\",i.diffuseTexture.index)),void 0!==i.specularFactor&&(e.specular=(new THREE.Color).fromArray(i.specularFactor)),void 0!==i.specularTexture&&n.push(t.assignTexture(e,\"specularMap\",i.specularTexture.index)),void 0!==i.shininessFactor&&(e.shininess=i.shininessFactor),Promise.all(n)};var E=\"glTF\",m=12,f={JSON:1313821514,BIN:5130562},h={FLOAT:5126,FLOAT_MAT3:35675,FLOAT_MAT4:35676,FLOAT_VEC2:35664,FLOAT_VEC3:35665,FLOAT_VEC4:35666,LINEAR:9729,REPEAT:10497,SAMPLER_2D:35678,POINTS:0,LINES:1,LINE_LOOP:2,LINE_STRIP:3,TRIANGLES:4,TRIANGLE_STRIP:5,TRIANGLE_FAN:6,UNSIGNED_BYTE:5121,UNSIGNED_SHORT:5123},T=(Number,THREE.Matrix3,THREE.Matrix4,THREE.Vector2,THREE.Vector3,THREE.Vector4,THREE.Texture,{5120:Int8Array,5121:Uint8Array,5122:Int16Array,5123:Uint16Array,5125:Uint32Array,5126:Float32Array}),v={9728:THREE.NearestFilter,9729:THREE.LinearFilter,9984:THREE.NearestMipMapNearestFilter,9985:THREE.LinearMipMapNearestFilter,9986:THREE.NearestMipMapLinearFilter,9987:THREE.LinearMipMapLinearFilter},R={33071:THREE.ClampToEdgeWrapping,33648:THREE.MirroredRepeatWrapping,10497:THREE.RepeatWrapping},g={6406:THREE.AlphaFormat,6407:THREE.RGBFormat,6408:THREE.RGBAFormat,6409:THREE.LuminanceFormat,6410:THREE.LuminanceAlphaFormat},M={5121:THREE.UnsignedByteType,32819:THREE.UnsignedShort4444Type,32820:THREE.UnsignedShort5551Type,33635:THREE.UnsignedShort565Type},S=(THREE.BackSide,THREE.FrontSide,THREE.NeverDepth,THREE.LessDepth,THREE.EqualDepth,THREE.LessEqualDepth,THREE.GreaterEqualDepth,THREE.NotEqualDepth,THREE.GreaterEqualDepth,THREE.AlwaysDepth,THREE.AddEquation,THREE.SubtractEquation,THREE.ReverseSubtractEquation,THREE.ZeroFactor,THREE.OneFactor,THREE.SrcColorFactor,THREE.OneMinusSrcColorFactor,THREE.SrcAlphaFactor,THREE.OneMinusSrcAlphaFactor,THREE.DstAlphaFactor,THREE.OneMinusDstAlphaFactor,THREE.DstColorFactor,THREE.OneMinusDstColorFactor,THREE.SrcAlphaSaturateFactor,{SCALAR:1,VEC2:2,VEC3:3,VEC4:4,MAT2:4,MAT3:9,MAT4:16}),H={scale:\"scale\",translation:\"position\",rotation:\"quaternion\",weights:\"morphTargetInfluences\"},L={CATMULLROMSPLINE:THREE.InterpolateSmooth,CUBICSPLINE:THREE.InterpolateSmooth,LINEAR:THREE.InterpolateLinear,STEP:THREE.InterpolateDiscrete},A={OPAQUE:\"OPAQUE\",MASK:\"MASK\",BLEND:\"BLEND\"};return p.prototype._withDependencies=function(e){for(var a={},t=0;t<e.length;t++){var r=e[t],n=\"load\"+r.charAt(0).toUpperCase()+r.slice(1),s=this.cache.get(r);if(void 0!==s)a[r]=s;else if(this[n]){var o=this[n]();this.cache.add(r,o),a[r]=o}}return i(a,function(e){return e})},p.prototype.parse=function(e,a){var t=this.json,r=this;this.cache.removeAll(),this._withDependencies([\"scenes\",\"animations\"]).then(function(n){var s=n.scenes||[],i=s[t.scene||0],o=n.animations||[];r.getDependencies(\"camera\").then(function(a){e(i,s,a,o)}).catch(a)}).catch(a)},p.prototype.getDependency=function(e,a){var t=e+\":\"+a,r=this.cache.get(t);if(!r){r=this[\"load\"+e.charAt(0).toUpperCase()+e.slice(1)](a),this.cache.add(t,r)}return r},p.prototype.getDependencies=function(e){var a=this,t=this.json[e+\"s\"]||[];return Promise.all(t.map(function(t,r){return a.getDependency(e,r)}))},p.prototype.loadBuffer=function(e){var a=this.json.buffers[e],t=this.fileLoader;if(a.type&&\"arraybuffer\"!==a.type)throw new Error(\"THREE.GLTFLoader: \"+a.type+\" buffer type is not supported.\");if(void 0===a.uri&&0===e)return Promise.resolve(this.extensions[d.KHR_BINARY_GLTF].body);var r=this.options;return new Promise(function(e,n){t.load(o(a.uri,r.path),e,void 0,function(){n(new Error('THREE.GLTFLoader: Failed to load buffer \"'+a.uri+'\".'))})})},p.prototype.loadBufferView=function(e){var a=this.json.bufferViews[e];return this.getDependency(\"buffer\",a.buffer).then(function(e){var t=a.byteLength||0,r=a.byteOffset||0;return e.slice(r,r+t)})},p.prototype.loadAccessors=function(){var e=this,a=this.json;return i(a.accessors,function(t){return e.getDependency(\"bufferView\",t.bufferView).then(function(e){var r,n=S[t.type],s=T[t.componentType],i=s.BYTES_PER_ELEMENT,o=i*n,l=a.bufferViews[t.bufferView].byteStride,u=!0===t.normalized;if(l&&l!==o){r=new s(e);var c=new THREE.InterleavedBuffer(r,l/i);return new THREE.InterleavedBufferAttribute(c,n,t.byteOffset/i,u)}return r=new s(e,t.byteOffset,t.count*n),new THREE.BufferAttribute(r,n,u)})})},p.prototype.loadTexture=function(e){var a=this,t=this.json,r=this.options,n=this.textureLoader,s=window.URL||window.webkitURL,i=t.textures[e],l=t.images[i.source],u=l.uri,c=!1;return void 0!==l.bufferView&&(u=a.getDependency(\"bufferView\",l.bufferView).then(function(e){c=!0;var a=new Blob([e],{type:l.mimeType});return u=s.createObjectURL(a)})),Promise.resolve(u).then(function(e){var a=THREE.Loader.Handlers.get(e)||n;return new Promise(function(t,n){a.load(o(e,r.path),t,void 0,n)})}).then(function(e){!0===c&&s.revokeObjectURL(u),e.flipY=!1,void 0!==i.name&&(e.name=i.name),e.format=void 0!==i.format?g[i.format]:THREE.RGBAFormat,void 0!==i.internalFormat&&e.format!==g[i.internalFormat]&&console.warn(\"THREE.GLTFLoader: Three.js does not support texture internalFormat which is different from texture format. internalFormat will be forced to be the same value as format.\"),e.type=void 0!==i.type?M[i.type]:THREE.UnsignedByteType;var a=t.samplers||{},r=a[i.sampler]||{};return e.magFilter=v[r.magFilter]||THREE.LinearFilter,e.minFilter=v[r.minFilter]||THREE.LinearMipMapLinearFilter,e.wrapS=R[r.wrapS]||THREE.RepeatWrapping,e.wrapT=R[r.wrapT]||THREE.RepeatWrapping,e})},p.prototype.assignTexture=function(e,a,t){return this.getDependency(\"texture\",t).then(function(t){e[a]=t})},p.prototype.loadMaterials=function(){var e=this,a=this.json,t=this.extensions;return i(a.materials,function(a){var r,n={},s=a.extensions||{},i=[];if(s[d.KHR_MATERIALS_COMMON]){var o=t[d.KHR_MATERIALS_COMMON];r=o.getMaterialType(a),i.push(o.extendParams(n,a,e))}else if(s[d.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS]){var l=t[d.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS];r=l.getMaterialType(a),i.push(l.extendParams(n,a,e))}else if(void 0!==a.pbrMetallicRoughness){r=THREE.MeshStandardMaterial;var u=a.pbrMetallicRoughness;if(n.color=new THREE.Color(1,1,1),n.opacity=1,Array.isArray(u.baseColorFactor)){var c=u.baseColorFactor;n.color.fromArray(c),n.opacity=c[3]}if(void 0!==u.baseColorTexture&&i.push(e.assignTexture(n,\"map\",u.baseColorTexture.index)),n.metalness=void 0!==u.metallicFactor?u.metallicFactor:1,n.roughness=void 0!==u.roughnessFactor?u.roughnessFactor:1,void 0!==u.metallicRoughnessTexture){var p=u.metallicRoughnessTexture.index;i.push(e.assignTexture(n,\"metalnessMap\",p)),i.push(e.assignTexture(n,\"roughnessMap\",p))}}else r=THREE.MeshPhongMaterial;!0===a.doubleSided&&(n.side=THREE.DoubleSide);var E=a.alphaMode||A.OPAQUE;return E!==A.OPAQUE?(n.transparent=!0,E===A.MASK&&(n.alphaTest=void 0!==a.alphaCutoff?a.alphaCutoff:.5)):n.transparent=!1,void 0!==a.normalTexture&&(i.push(e.assignTexture(n,\"normalMap\",a.normalTexture.index)),n.normalScale=new THREE.Vector2(1,1),void 0!==a.normalTexture.scale&&n.normalScale.set(a.normalTexture.scale,a.normalTexture.scale)),void 0!==a.occlusionTexture&&(i.push(e.assignTexture(n,\"aoMap\",a.occlusionTexture.index)),void 0!==a.occlusionTexture.strength&&(n.aoMapIntensity=a.occlusionTexture.strength)),void 0!==a.emissiveFactor&&(r===THREE.MeshBasicMaterial?n.color=(new THREE.Color).fromArray(a.emissiveFactor):n.emissive=(new THREE.Color).fromArray(a.emissiveFactor)),void 0!==a.emissiveTexture&&(r===THREE.MeshBasicMaterial?i.push(e.assignTexture(n,\"map\",a.emissiveTexture.index)):i.push(e.assignTexture(n,\"emissiveMap\",a.emissiveTexture.index))),Promise.all(i).then(function(){var e;return e=r===THREE.ShaderMaterial?t[d.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS].createMaterial(n):new r(n),void 0!==a.name&&(e.name=a.name),e.normalScale&&(e.normalScale.x=-e.normalScale.x),e.map&&(e.map.encoding=THREE.sRGBEncoding),e.emissiveMap&&(e.emissiveMap.encoding=THREE.sRGBEncoding),a.extras&&(e.userData=a.extras),e})})},p.prototype.loadGeometries=function(e){return this._withDependencies([\"accessors\"]).then(function(a){return i(e,function(e){var t=new THREE.BufferGeometry,r=e.attributes;for(var n in r){var s=r[n];if(void 0===s)return;var i=a.accessors[s];switch(n){case\"POSITION\":t.addAttribute(\"position\",i);break;case\"NORMAL\":t.addAttribute(\"normal\",i);break;case\"TEXCOORD_0\":case\"TEXCOORD0\":case\"TEXCOORD\":t.addAttribute(\"uv\",i);break;case\"TEXCOORD_1\":t.addAttribute(\"uv2\",i);break;case\"COLOR_0\":case\"COLOR0\":case\"COLOR\":t.addAttribute(\"color\",i);break;case\"WEIGHTS_0\":case\"WEIGHT\":t.addAttribute(\"skinWeight\",i);break;case\"JOINTS_0\":case\"JOINT\":t.addAttribute(\"skinIndex\",i)}}return void 0!==e.indices&&t.setIndex(a.accessors[e.indices]),t})})},p.prototype.loadMeshes=function(){var e=this,a=this.json,t=this.extensions;return this._withDependencies([\"accessors\",\"materials\"]).then(function(r){return i(a.meshes,function(a,n){var s=new THREE.Group,i=a.primitives||[];return e.loadGeometries(i).then(function(e){for(var o=0;o<i.length;o++){var l=i[o],p=e[o],E=void 0===l.material?u():r.materials[l.material];E.aoMap&&void 0===p.attributes.uv2&&void 0!==p.attributes.uv&&(console.log(\"THREE.GLTFLoader: Duplicating UVs to support aoMap.\"),p.addAttribute(\"uv2\",new THREE.BufferAttribute(p.attributes.uv.array,2)));var m=void 0!==p.attributes.color,f=void 0===p.attributes.normal;if(m||f)if(E.isGLTFSpecularGlossinessMaterial){var T=t[d.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS];E=T.cloneMaterial(E)}else E=E.clone();m&&(E.vertexColors=THREE.VertexColors,E.needsUpdate=!0),f&&(E.flatShading=!0);var v;if(l.mode===h.TRIANGLES||void 0===l.mode)v=new THREE.Mesh(p,E);else if(l.mode===h.TRIANGLE_STRIP)v=new THREE.Mesh(p,E),v.drawMode=THREE.TriangleStripDrawMode;else if(l.mode===h.TRIANGLE_FAN)v=new THREE.Mesh(p,E),v.drawMode=THREE.TriangleFanDrawMode;else if(l.mode===h.LINES)v=new THREE.LineSegments(p,E);else if(l.mode===h.LINE_STRIP)v=new THREE.Line(p,E);else if(l.mode===h.LINE_LOOP)v=new THREE.LineLoop(p,E);else{if(l.mode!==h.POINTS)throw new Error(\"THREE.GLTFLoader: Primitive mode unsupported: \",l.mode);v=new THREE.Points(p,E)}if(v.name=a.name||\"mesh_\"+n,void 0!==l.targets&&c(v,a,l,r),l.extras&&(v.userData=l.extras),!(i.length>1))return v;v.name+=\"_\"+o,s.add(v)}return s})})})},p.prototype.loadCamera=function(e){var a,t=this.json.cameras[e],r=t[t.type];if(!r)return void console.warn(\"THREE.GLTFLoader: Missing camera parameters.\");if(\"perspective\"===t.type){var n=r.aspectRatio||1,s=r.yfov*n;a=new THREE.PerspectiveCamera(THREE.Math.radToDeg(s),n,r.znear||1,r.zfar||2e6)}else\"orthographic\"===t.type&&(a=new THREE.OrthographicCamera(r.xmag/-2,r.xmag/2,r.ymag/2,r.ymag/-2,r.znear,r.zfar));return void 0!==t.name&&(a.name=t.name),t.extras&&(a.userData=t.extras),Promise.resolve(a)},p.prototype.loadSkins=function(){var e=this.json;return this._withDependencies([\"accessors\"]).then(function(a){return i(e.skins,function(e){return{joints:e.joints,inverseBindMatrices:a.accessors[e.inverseBindMatrices]}})})},p.prototype.loadAnimations=function(){var e=this.json;return this._withDependencies([\"accessors\",\"nodes\"]).then(function(a){return i(e.animations,function(e,t){for(var r=[],n=0;n<e.channels.length;n++){var s=e.channels[n],i=e.samplers[s.sampler];if(i){var o=s.target,l=void 0!==o.node?o.node:o.id,u=void 0!==e.parameters?e.parameters[i.input]:i.input,c=void 0!==e.parameters?e.parameters[i.output]:i.output,p=a.accessors[u],d=a.accessors[c],E=a.nodes[l];if(E){E.updateMatrix(),E.matrixAutoUpdate=!0;var m;switch(H[o.path]){case H.weights:m=THREE.NumberKeyframeTrack;break;case H.rotation:m=THREE.QuaternionKeyframeTrack;break;case H.position:case H.scale:default:m=THREE.VectorKeyframeTrack}var f=E.name?E.name:E.uuid;\"CATMULLROMSPLINE\"===i.interpolation&&console.warn(\"THREE.GLTFLoader: CATMULLROMSPLINE interpolation is not supported. Using CUBICSPLINE instead.\");var h=void 0!==i.interpolation?L[i.interpolation]:THREE.InterpolateLinear,T=[];H[o.path]===H.weights?E.traverse(function(e){!0===e.isMesh&&!0===e.material.morphTargets&&T.push(e.name?e.name:e.uuid)}):T.push(f);for(var v=0,R=T.length;v<R;v++)r.push(new m(T[v]+\".\"+H[o.path],THREE.AnimationUtils.arraySlice(p.array,0),THREE.AnimationUtils.arraySlice(d.array,0),h))}}}var l=void 0!==e.name?e.name:\"animation_\"+t;return new THREE.AnimationClip(l,void 0,r)})})},p.prototype.loadNodes=function(){for(var e=this.json,a=this.extensions,t=this,r=e.nodes||[],n=e.skins||[],s={},o={},l=0;l<n.length;l++)for(var u=n[l].joints,c=0;c<u.length;++c)r[u[c]].isBone=!0;for(var p=0;p<r.length;p++){var E=r[p];void 0!==E.mesh&&(void 0===s[E.mesh]&&(s[E.mesh]=o[E.mesh]=0),s[E.mesh]++)}return t._withDependencies([\"meshes\",\"skins\",\"cameras\"]).then(function(r){return i(e.nodes,function(e){if(!0===e.isBone)return new THREE.Bone;if(void 0!==e.mesh){var n=r.meshes[e.mesh].clone();return s[e.mesh]>1&&(n.name+=\"_instance_\"+o[e.mesh]++),n}if(void 0!==e.camera)return t.getDependency(\"camera\",e.camera);if(e.extensions&&e.extensions[d.KHR_LIGHTS]&&void 0!==e.extensions[d.KHR_LIGHTS].light){return a[d.KHR_LIGHTS].lights[e.extensions[d.KHR_LIGHTS].light]}return new THREE.Object3D}).then(function(a){return i(a,function(t,n){var s=e.nodes[n];if(void 0!==s.name&&(t.name=THREE.PropertyBinding.sanitizeNodeName(s.name)),s.extras&&(t.userData=s.extras),void 0!==s.matrix){var i=new THREE.Matrix4;i.fromArray(s.matrix),t.applyMatrix(i)}else void 0!==s.translation&&t.position.fromArray(s.translation),void 0!==s.rotation&&t.quaternion.fromArray(s.rotation),void 0!==s.scale&&t.scale.fromArray(s.scale);if(void 0!==s.skin){for(var o=[],l=t.children.length>0?t.children:[t],u=0;u<l.length;u++){var c=l[u],p=r.skins[s.skin],d=c.geometry,E=c.material;E.skinning=!0;var m=new THREE.SkinnedMesh(d,E);m.morphTargetInfluences=c.morphTargetInfluences,m.userData=c.userData,m.name=c.name;for(var f=[],h=[],T=0,v=p.joints.length;T<v;T++){var R=p.joints[T],g=a[R];if(g){f.push(g);var M=p.inverseBindMatrices.array,S=(new THREE.Matrix4).fromArray(M,16*T);h.push(S)}else console.warn('THREE.GLTFLoader: Joint \"%s\" could not be found.',R)}m.bind(new THREE.Skeleton(f,h),m.matrixWorld),o.push(m)}t.children.length>0?(t.remove.apply(t,t.children),t.add.apply(t,o)):t=o[0]}return t})})})},p.prototype.loadScenes=function(){function e(t,r,n){var s=n[t];r.add(s);var i=a.nodes[t];if(i.children)for(var o=i.children,l=0,u=o.length;l<u;l++){var c=o[l];e(c,s,n)}}var a=this.json,t=this.extensions;return this._withDependencies([\"nodes\"]).then(function(r){return i(a.scenes,function(a){var n=new THREE.Scene;void 0!==a.name&&(n.name=a.name),a.extras&&(n.userData=a.extras);for(var s=a.nodes||[],i=0,o=s.length;i<o;i++){e(s[i],n,r.nodes)}if(n.traverse(function(e){e.material&&e.material.isGLTFSpecularGlossinessMaterial&&(e.onBeforeRender=t[d.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS].refreshUniforms)}),a.extensions&&a.extensions[d.KHR_LIGHTS]&&void 0!==a.extensions[d.KHR_LIGHTS].light){var l=t[d.KHR_LIGHTS].lights;n.add(l[a.extensions[d.KHR_LIGHTS].light])}return n})})},e}();","THREE.MTLLoader=function(t){this.manager=void 0!==t?t:THREE.DefaultLoadingManager},THREE.MTLLoader.prototype={constructor:THREE.MTLLoader,load:function(t,a,e,r){var s=this,i=new THREE.FileLoader(this.manager);i.setPath(this.path),i.load(t,function(t){a(s.parse(t))},e,r)},setPath:function(t){this.path=t},setTexturePath:function(t){this.texturePath=t},setBaseUrl:function(t){console.warn(\"THREE.MTLLoader: .setBaseUrl() is deprecated. Use .setTexturePath( path ) for texture path or .setPath( path ) for general base path instead.\"),this.setTexturePath(t)},setCrossOrigin:function(t){this.crossOrigin=t},setMaterialOptions:function(t){this.materialOptions=t},parse:function(t){for(var a=t.split(\"\\n\"),e={},r=/\\s+/,s={},i=0;i<a.length;i++){var o=a[i];if(o=o.trim(),0!==o.length&&\"#\"!==o.charAt(0)){var n=o.indexOf(\" \"),p=n>=0?o.substring(0,n):o;p=p.toLowerCase();var h=n>=0?o.substring(n+1):\"\";if(h=h.trim(),\"newmtl\"===p)e={name:h},s[h]=e;else if(e)if(\"ka\"===p||\"kd\"===p||\"ks\"===p){var l=h.split(r,3);e[p]=[parseFloat(l[0]),parseFloat(l[1]),parseFloat(l[2])]}else e[p]=h}}var c=new THREE.MTLLoader.MaterialCreator(this.texturePath||this.path,this.materialOptions);return c.setCrossOrigin(this.crossOrigin),c.setManager(this.manager),c.setMaterials(s),c}},THREE.MTLLoader.MaterialCreator=function(t,a){this.baseUrl=t||\"\",this.options=a,this.materialsInfo={},this.materials={},this.materialsArray=[],this.nameLookup={},this.side=this.options&&this.options.side?this.options.side:THREE.FrontSide,this.wrap=this.options&&this.options.wrap?this.options.wrap:THREE.RepeatWrapping},THREE.MTLLoader.MaterialCreator.prototype={constructor:THREE.MTLLoader.MaterialCreator,crossOrigin:\"Anonymous\",setCrossOrigin:function(t){this.crossOrigin=t},setManager:function(t){this.manager=t},setMaterials:function(t){this.materialsInfo=this.convert(t),this.materials={},this.materialsArray=[],this.nameLookup={}},convert:function(t){if(!this.options)return t;var a={};for(var e in t){var r=t[e],s={};a[e]=s;for(var i in r){var o=!0,n=r[i],p=i.toLowerCase();switch(p){case\"kd\":case\"ka\":case\"ks\":this.options&&this.options.normalizeRGB&&(n=[n[0]/255,n[1]/255,n[2]/255]),this.options&&this.options.ignoreZeroRGBs&&0===n[0]&&0===n[1]&&0===n[2]&&(o=!1)}o&&(s[p]=n)}}return a},preload:function(){for(var t in this.materialsInfo)this.create(t)},getIndex:function(t){return this.nameLookup[t]},getAsArray:function(){var t=0;for(var a in this.materialsInfo)this.materialsArray[t]=this.create(a),this.nameLookup[a]=t,t++;return this.materialsArray},create:function(t){return void 0===this.materials[t]&&this.createMaterial_(t),this.materials[t]},createMaterial_:function(t){function a(t,a){return\"string\"!=typeof a||\"\"===a?\"\":/^https?:\\/\\//i.test(a)?a:t+a}function e(t,e){if(!i[t]){var s=r.getTextureParams(e,i),o=r.loadTexture(a(r.baseUrl,s.url));o.repeat.copy(s.scale),o.offset.copy(s.offset),o.wrapS=r.wrap,o.wrapT=r.wrap,i[t]=o}}var r=this,s=this.materialsInfo[t],i={name:t,side:this.side};for(var o in s){var n,p=s[o];if(\"\"!==p)switch(o.toLowerCase()){case\"kd\":i.color=(new THREE.Color).fromArray(p);break;case\"ks\":i.specular=(new THREE.Color).fromArray(p);break;case\"map_kd\":e(\"map\",p);break;case\"map_ks\":e(\"specularMap\",p);break;case\"norm\":e(\"normalMap\",p);break;case\"map_bump\":case\"bump\":e(\"bumpMap\",p);break;case\"ns\":i.shininess=parseFloat(p);break;case\"d\":n=parseFloat(p),n<1&&(i.opacity=n,i.transparent=!0);break;case\"tr\":n=parseFloat(p),n>0&&(i.opacity=1-n,i.transparent=!0)}}return this.materials[t]=new THREE.MeshPhongMaterial(i),this.materials[t]},getTextureParams:function(t,a){var e,r={scale:new THREE.Vector2(1,1),offset:new THREE.Vector2(0,0)},s=t.split(/\\s+/);return e=s.indexOf(\"-bm\"),e>=0&&(a.bumpScale=parseFloat(s[e+1]),s.splice(e,2)),e=s.indexOf(\"-s\"),e>=0&&(r.scale.set(parseFloat(s[e+1]),parseFloat(s[e+2])),s.splice(e,4)),e=s.indexOf(\"-o\"),e>=0&&(r.offset.set(parseFloat(s[e+1]),parseFloat(s[e+2])),s.splice(e,4)),r.url=s.join(\" \").trim(),r},loadTexture:function(t,a,e,r,s){var i,o=THREE.Loader.Handlers.get(t),n=void 0!==this.manager?this.manager:THREE.DefaultLoadingManager;return null===o&&(o=new THREE.TextureLoader(n)),o.setCrossOrigin&&o.setCrossOrigin(this.crossOrigin),i=o.load(t,e,r,s),void 0!==a&&(i.mapping=a),i}};","THREE.OBJLoader=function(){function t(){var t={objects:[],object:{},vertices:[],normals:[],colors:[],uvs:[],materialLibraries:[],startObject:function(t,e){if(this.object&&!1===this.object.fromDeclaration)return this.object.name=t,void(this.object.fromDeclaration=!1!==e);var r=this.object&&\"function\"==typeof this.object.currentMaterial?this.object.currentMaterial():void 0;if(this.object&&\"function\"==typeof this.object._finalize&&this.object._finalize(!0),this.object={name:t||\"\",fromDeclaration:!1!==e,geometry:{vertices:[],normals:[],colors:[],uvs:[]},materials:[],smooth:!0,startMaterial:function(t,e){var r=this._finalize(!1);r&&(r.inherited||r.groupCount<=0)&&this.materials.splice(r.index,1);var i={index:this.materials.length,name:t||\"\",mtllib:Array.isArray(e)&&e.length>0?e[e.length-1]:\"\",smooth:void 0!==r?r.smooth:this.smooth,groupStart:void 0!==r?r.groupEnd:0,groupEnd:-1,groupCount:-1,inherited:!1,clone:function(t){var e={index:\"number\"==typeof t?t:this.index,name:this.name,mtllib:this.mtllib,smooth:this.smooth,groupStart:0,groupEnd:-1,groupCount:-1,inherited:!1};return e.clone=this.clone.bind(e),e}};return this.materials.push(i),i},currentMaterial:function(){if(this.materials.length>0)return this.materials[this.materials.length-1]},_finalize:function(t){var e=this.currentMaterial();if(e&&-1===e.groupEnd&&(e.groupEnd=this.geometry.vertices.length/3,e.groupCount=e.groupEnd-e.groupStart,e.inherited=!1),t&&this.materials.length>1)for(var r=this.materials.length-1;r>=0;r--)this.materials[r].groupCount<=0&&this.materials.splice(r,1);return t&&0===this.materials.length&&this.materials.push({name:\"\",smooth:this.smooth}),e}},r&&r.name&&\"function\"==typeof r.clone){var i=r.clone(0);i.inherited=!0,this.object.materials.push(i)}this.objects.push(this.object)},finalize:function(){this.object&&\"function\"==typeof this.object._finalize&&this.object._finalize(!0)},parseVertexIndex:function(t,e){var r=parseInt(t,10);return 3*(r>=0?r-1:r+e/3)},parseNormalIndex:function(t,e){var r=parseInt(t,10);return 3*(r>=0?r-1:r+e/3)},parseUVIndex:function(t,e){var r=parseInt(t,10);return 2*(r>=0?r-1:r+e/2)},addVertex:function(t,e,r){var i=this.vertices,s=this.object.geometry.vertices;s.push(i[t+0],i[t+1],i[t+2]),s.push(i[e+0],i[e+1],i[e+2]),s.push(i[r+0],i[r+1],i[r+2])},addVertexLine:function(t){var e=this.vertices;this.object.geometry.vertices.push(e[t+0],e[t+1],e[t+2])},addNormal:function(t,e,r){var i=this.normals,s=this.object.geometry.normals;s.push(i[t+0],i[t+1],i[t+2]),s.push(i[e+0],i[e+1],i[e+2]),s.push(i[r+0],i[r+1],i[r+2])},addColor:function(t,e,r){var i=this.colors,s=this.object.geometry.colors;s.push(i[t+0],i[t+1],i[t+2]),s.push(i[e+0],i[e+1],i[e+2]),s.push(i[r+0],i[r+1],i[r+2])},addUV:function(t,e,r){var i=this.uvs,s=this.object.geometry.uvs;s.push(i[t+0],i[t+1]),s.push(i[e+0],i[e+1]),s.push(i[r+0],i[r+1])},addUVLine:function(t){var e=this.uvs;this.object.geometry.uvs.push(e[t+0],e[t+1])},addFace:function(t,e,r,i,s,a,n,o,h){var l=this.vertices.length,u=this.parseVertexIndex(t,l),c=this.parseVertexIndex(e,l),m=this.parseVertexIndex(r,l);if(this.addVertex(u,c,m),void 0!==i){var p=this.uvs.length;u=this.parseUVIndex(i,p),c=this.parseUVIndex(s,p),m=this.parseUVIndex(a,p),this.addUV(u,c,m)}if(void 0!==n){var f=this.normals.length;u=this.parseNormalIndex(n,f),c=n===o?u:this.parseNormalIndex(o,f),m=n===h?u:this.parseNormalIndex(h,f),this.addNormal(u,c,m)}this.colors.length>0&&this.addColor(u,c,m)},addLineGeometry:function(t,e){this.object.geometry.type=\"Line\";for(var r=this.vertices.length,i=this.uvs.length,s=0,a=t.length;s<a;s++)this.addVertexLine(this.parseVertexIndex(t[s],r));for(var n=0,a=e.length;n<a;n++)this.addUVLine(this.parseUVIndex(e[n],i))}};return t.startObject(\"\",!1),t}function e(t){this.manager=void 0!==t?t:THREE.DefaultLoadingManager,this.materials=null}var r=/^[og]\\s*(.+)?/,i=/^mtllib /,s=/^usemtl /;return e.prototype={constructor:e,load:function(t,e,r,i){var s=this,a=new THREE.FileLoader(s.manager);a.setPath(this.path),a.load(t,function(t){e(s.parse(t))},r,i)},setPath:function(t){this.path=t},setMaterials:function(t){return this.materials=t,this},parse:function(e){console.time(\"OBJLoader\");var a=new t;-1!==e.indexOf(\"\\r\\n\")&&(e=e.replace(/\\r\\n/g,\"\\n\")),-1!==e.indexOf(\"\\\\\\n\")&&(e=e.replace(/\\\\\\n/g,\"\"));for(var n=e.split(\"\\n\"),o=\"\",h=\"\",l=[],u=\"function\"==typeof\"\".trimLeft,c=0,m=n.length;c<m;c++)if(o=n[c],o=u?o.trimLeft():o.trim(),0!==o.length&&\"#\"!==(h=o.charAt(0)))if(\"v\"===h){var p=o.split(/\\s+/);switch(p[0]){case\"v\":a.vertices.push(parseFloat(p[1]),parseFloat(p[2]),parseFloat(p[3])),8===p.length&&a.colors.push(parseFloat(p[4]),parseFloat(p[5]),parseFloat(p[6]));break;case\"vn\":a.normals.push(parseFloat(p[1]),parseFloat(p[2]),parseFloat(p[3]));break;case\"vt\":a.uvs.push(parseFloat(p[1]),parseFloat(p[2]))}}else if(\"f\"===h){for(var f=o.substr(1).trim(),d=f.split(/\\s+/),v=[],g=0,b=d.length;g<b;g++){var E=d[g];if(E.length>0){var j=E.split(\"/\");v.push(j)}}for(var x=v[0],g=1,b=v.length-1;g<b;g++){var L=v[g],y=v[g+1];a.addFace(x[0],L[0],y[0],x[1],L[1],y[1],x[2],L[2],y[2])}}else if(\"l\"===h){var w=o.substring(1).trim().split(\" \"),V=[],F=[];if(-1===o.indexOf(\"/\"))V=w;else for(var H=0,R=w.length;H<R;H++){var T=w[H].split(\"/\");\"\"!==T[0]&&V.push(T[0]),\"\"!==T[1]&&F.push(T[1])}a.addLineGeometry(V,F)}else if(null!==(l=r.exec(o))){var I=(\" \"+l[0].substr(1).trim()).substr(1);a.startObject(I)}else if(s.test(o))a.object.startMaterial(o.substring(7).trim(),a.materialLibraries);else if(i.test(o))a.materialLibraries.push(o.substring(7).trim());else{if(\"s\"!==h){if(\"\\0\"===o)continue;throw new Error('THREE.OBJLoader: Unexpected line: \"'+o+'\"')}if(l=o.split(\" \"),l.length>1){var M=l[1].trim().toLowerCase();a.object.smooth=\"0\"!==M&&\"off\"!==M}else a.object.smooth=!0;var B=a.object.currentMaterial();B&&(B.smooth=a.object.smooth)}a.finalize();var A=new THREE.Group;A.materialLibraries=[].concat(a.materialLibraries);for(var c=0,m=a.objects.length;c<m;c++){var O=a.objects[c],U=O.geometry,C=O.materials,z=\"Line\"===U.type;if(0!==U.vertices.length){var N=new THREE.BufferGeometry;N.addAttribute(\"position\",new THREE.Float32BufferAttribute(U.vertices,3)),U.normals.length>0?N.addAttribute(\"normal\",new THREE.Float32BufferAttribute(U.normals,3)):N.computeVertexNormals(),U.colors.length>0&&N.addAttribute(\"color\",new THREE.Float32BufferAttribute(U.colors,3)),U.uvs.length>0&&N.addAttribute(\"uv\",new THREE.Float32BufferAttribute(U.uvs,2));for(var S=[],_=0,G=C.length;_<G;_++){var D=C[_],B=void 0;if(null!==this.materials&&(B=this.materials.create(D.name),z&&B&&!(B instanceof THREE.LineBasicMaterial))){var J=new THREE.LineBasicMaterial;J.copy(B),B=J}B||(B=z?new THREE.LineBasicMaterial:new THREE.MeshPhongMaterial,B.name=D.name),B.flatShading=!D.smooth,S.push(B)}var P;if(S.length>1){for(var _=0,G=C.length;_<G;_++){var D=C[_];N.addGroup(D.groupStart,D.groupCount,_)}P=z?new THREE.LineSegments(N,S):new THREE.Mesh(N,S)}else P=z?new THREE.LineSegments(N,S[0]):new THREE.Mesh(N,S[0]);P.name=O.name,A.add(P)}}return console.timeEnd(\"OBJLoader\"),A}},e}();","/**\n * Tween.js - Licensed under the MIT license\n * https://github.com/tweenjs/tween.js\n * ----------------------------------------------\n *\n * See https://github.com/tweenjs/tween.js/graphs/contributors for the full list of contributors.\n * Thank you all, you're awesome!\n */\n\n\nvar _Group = function () {\n\tthis._tweens = {};\n\tthis._tweensAddedDuringUpdate = {};\n};\n\n_Group.prototype = {\n\tgetAll: function () {\n\n\t\treturn Object.keys(this._tweens).map(function (tweenId) {\n\t\t\treturn this._tweens[tweenId];\n\t\t}.bind(this));\n\n\t},\n\n\tremoveAll: function () {\n\n\t\tthis._tweens = {};\n\n\t},\n\n\tadd: function (tween) {\n\n\t\tthis._tweens[tween.getId()] = tween;\n\t\tthis._tweensAddedDuringUpdate[tween.getId()] = tween;\n\n\t},\n\n\tremove: function (tween) {\n\n\t\tdelete this._tweens[tween.getId()];\n\t\tdelete this._tweensAddedDuringUpdate[tween.getId()];\n\n\t},\n\n\tupdate: function (time, preserve) {\n\n\t\tvar tweenIds = Object.keys(this._tweens);\n\n\t\tif (tweenIds.length === 0) {\n\t\t\treturn false;\n\t\t}\n\n\t\ttime = time !== undefined ? time : TWEEN.now();\n\n\t\t// Tweens are updated in \"batches\". If you add a new tween during an update, then the\n\t\t// new tween will be updated in the next batch.\n\t\t// If you remove a tween during an update, it will normally still be updated. However,\n\t\t// if the removed tween was added during the current batch, then it will not be updated.\n\t\twhile (tweenIds.length > 0) {\n\t\t\tthis._tweensAddedDuringUpdate = {};\n\n\t\t\tfor (var i = 0; i < tweenIds.length; i++) {\n\n\t\t\t\tif (this._tweens[tweenIds[i]].update(time) === false) {\n\t\t\t\t\tthis._tweens[tweenIds[i]]._isPlaying = false;\n\n\t\t\t\t\tif (!preserve) {\n\t\t\t\t\t\tdelete this._tweens[tweenIds[i]];\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\ttweenIds = Object.keys(this._tweensAddedDuringUpdate);\n\t\t}\n\n\t\treturn true;\n\n\t}\n};\n\nvar TWEEN = new _Group();\n\nTWEEN.Group = _Group;\nTWEEN._nextId = 0;\nTWEEN.nextId = function () {\n\treturn TWEEN._nextId++;\n};\n\n\n// Include a performance.now polyfill.\n// In node.js, use process.hrtime.\nif (typeof (window) === 'undefined' && typeof (process) !== 'undefined') {\n\tTWEEN.now = function () {\n\t\tvar time = process.hrtime();\n\n\t\t// Convert [seconds, nanoseconds] to milliseconds.\n\t\treturn time[0] * 1000 + time[1] / 1000000;\n\t};\n}\n// In a browser, use window.performance.now if it is available.\nelse if (typeof (window) !== 'undefined' &&\n         window.performance !== undefined &&\n\t\t window.performance.now !== undefined) {\n\t// This must be bound, because directly assigning this function\n\t// leads to an invocation exception in Chrome.\n\tTWEEN.now = window.performance.now.bind(window.performance);\n}\n// Use Date.now if it is available.\nelse if (Date.now !== undefined) {\n\tTWEEN.now = Date.now;\n}\n// Otherwise, use 'new Date().getTime()'.\nelse {\n\tTWEEN.now = function () {\n\t\treturn new Date().getTime();\n\t};\n}\n\n\nTWEEN.Tween = function (object, group) {\n\tthis._object = object;\n\tthis._valuesStart = {};\n\tthis._valuesEnd = {};\n\tthis._valuesStartRepeat = {};\n\tthis._duration = 1000;\n\tthis._repeat = 0;\n\tthis._repeatDelayTime = undefined;\n\tthis._yoyo = false;\n\tthis._isPlaying = false;\n\tthis._reversed = false;\n\tthis._delayTime = 0;\n\tthis._startTime = null;\n\tthis._easingFunction = TWEEN.Easing.Linear.None;\n\tthis._interpolationFunction = TWEEN.Interpolation.Linear;\n\tthis._chainedTweens = [];\n\tthis._onStartCallback = null;\n\tthis._onStartCallbackFired = false;\n\tthis._onUpdateCallback = null;\n\tthis._onCompleteCallback = null;\n\tthis._onStopCallback = null;\n\tthis._group = group || TWEEN;\n\tthis._id = TWEEN.nextId();\n\n};\n\nTWEEN.Tween.prototype = {\n\tgetId: function getId() {\n\t\treturn this._id;\n\t},\n\n\tisPlaying: function isPlaying() {\n\t\treturn this._isPlaying;\n\t},\n\n\tto: function to(properties, duration) {\n\n\t\tthis._valuesEnd = properties;\n\n\t\tif (duration !== undefined) {\n\t\t\tthis._duration = duration;\n\t\t}\n\n\t\treturn this;\n\n\t},\n\n\tstart: function start(time) {\n\n\t\tthis._group.add(this);\n\n\t\tthis._isPlaying = true;\n\n\t\tthis._onStartCallbackFired = false;\n\n\t\tthis._startTime = time !== undefined ? time : TWEEN.now();\n\t\tthis._startTime += this._delayTime;\n\n\t\tfor (var property in this._valuesEnd) {\n\n\t\t\t// Check if an Array was provided as property value\n\t\t\tif (this._valuesEnd[property] instanceof Array) {\n\n\t\t\t\tif (this._valuesEnd[property].length === 0) {\n\t\t\t\t\tcontinue;\n\t\t\t\t}\n\n\t\t\t\t// Create a local copy of the Array with the start value at the front\n\t\t\t\tthis._valuesEnd[property] = [this._object[property]].concat(this._valuesEnd[property]);\n\n\t\t\t}\n\n\t\t\t// If `to()` specifies a property that doesn't exist in the source object,\n\t\t\t// we should not set that property in the object\n\t\t\tif (this._object[property] === undefined) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t// Save the starting value.\n\t\t\tthis._valuesStart[property] = this._object[property];\n\n\t\t\tif ((this._valuesStart[property] instanceof Array) === false) {\n\t\t\t\tthis._valuesStart[property] *= 1.0; // Ensures we're using numbers, not strings\n\t\t\t}\n\n\t\t\tthis._valuesStartRepeat[property] = this._valuesStart[property] || 0;\n\n\t\t}\n\n\t\treturn this;\n\n\t},\n\n\tstop: function stop() {\n\n\t\tif (!this._isPlaying) {\n\t\t\treturn this;\n\t\t}\n\n\t\tthis._group.remove(this);\n\t\tthis._isPlaying = false;\n\n\t\tif (this._onStopCallback !== null) {\n\t\t\tthis._onStopCallback.call(this._object, this._object);\n\t\t}\n\n\t\tthis.stopChainedTweens();\n\t\treturn this;\n\n\t},\n\n\tend: function end() {\n\n\t\tthis.update(this._startTime + this._duration);\n\t\treturn this;\n\n\t},\n\n\tstopChainedTweens: function stopChainedTweens() {\n\n\t\tfor (var i = 0, numChainedTweens = this._chainedTweens.length; i < numChainedTweens; i++) {\n\t\t\tthis._chainedTweens[i].stop();\n\t\t}\n\n\t},\n\n\tdelay: function delay(amount) {\n\n\t\tthis._delayTime = amount;\n\t\treturn this;\n\n\t},\n\n\trepeat: function repeat(times) {\n\n\t\tthis._repeat = times;\n\t\treturn this;\n\n\t},\n\n\trepeatDelay: function repeatDelay(amount) {\n\n\t\tthis._repeatDelayTime = amount;\n\t\treturn this;\n\n\t},\n\n\tyoyo: function yoyo(yoyo) {\n\n\t\tthis._yoyo = yoyo;\n\t\treturn this;\n\n\t},\n\n\teasing: function easing(easing) {\n\n\t\tthis._easingFunction = easing;\n\t\treturn this;\n\n\t},\n\n\tinterpolation: function interpolation(interpolation) {\n\n\t\tthis._interpolationFunction = interpolation;\n\t\treturn this;\n\n\t},\n\n\tchain: function chain() {\n\n\t\tthis._chainedTweens = arguments;\n\t\treturn this;\n\n\t},\n\n\tonStart: function onStart(callback) {\n\n\t\tthis._onStartCallback = callback;\n\t\treturn this;\n\n\t},\n\n\tonUpdate: function onUpdate(callback) {\n\n\t\tthis._onUpdateCallback = callback;\n\t\treturn this;\n\n\t},\n\n\tonComplete: function onComplete(callback) {\n\n\t\tthis._onCompleteCallback = callback;\n\t\treturn this;\n\n\t},\n\n\tonStop: function onStop(callback) {\n\n\t\tthis._onStopCallback = callback;\n\t\treturn this;\n\n\t},\n\n\tupdate: function update(time) {\n\n\t\tvar property;\n\t\tvar elapsed;\n\t\tvar value;\n\n\t\tif (time < this._startTime) {\n\t\t\treturn true;\n\t\t}\n\n\t\tif (this._onStartCallbackFired === false) {\n\n\t\t\tif (this._onStartCallback !== null) {\n\t\t\t\tthis._onStartCallback.call(this._object, this._object);\n\t\t\t}\n\n\t\t\tthis._onStartCallbackFired = true;\n\t\t}\n\n\t\telapsed = (time - this._startTime) / this._duration;\n\t\telapsed = elapsed > 1 ? 1 : elapsed;\n\n\t\tvalue = this._easingFunction(elapsed);\n\n\t\tfor (property in this._valuesEnd) {\n\n\t\t\t// Don't update properties that do not exist in the source object\n\t\t\tif (this._valuesStart[property] === undefined) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tvar start = this._valuesStart[property] || 0;\n\t\t\tvar end = this._valuesEnd[property];\n\n\t\t\tif (end instanceof Array) {\n\n\t\t\t\tthis._object[property] = this._interpolationFunction(end, value);\n\n\t\t\t} else {\n\n\t\t\t\t// Parses relative end values with start as base (e.g.: +10, -3)\n\t\t\t\tif (typeof (end) === 'string') {\n\n\t\t\t\t\tif (end.charAt(0) === '+' || end.charAt(0) === '-') {\n\t\t\t\t\t\tend = start + parseFloat(end);\n\t\t\t\t\t} else {\n\t\t\t\t\t\tend = parseFloat(end);\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t// Protect against non numeric properties.\n\t\t\t\tif (typeof (end) === 'number') {\n\t\t\t\t\tthis._object[property] = start + (end - start) * value;\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tif (this._onUpdateCallback !== null) {\n\t\t\tthis._onUpdateCallback.call(this._object, value);\n\t\t}\n\n\t\tif (elapsed === 1) {\n\n\t\t\tif (this._repeat > 0) {\n\n\t\t\t\tif (isFinite(this._repeat)) {\n\t\t\t\t\tthis._repeat--;\n\t\t\t\t}\n\n\t\t\t\t// Reassign starting values, restart by making startTime = now\n\t\t\t\tfor (property in this._valuesStartRepeat) {\n\n\t\t\t\t\tif (typeof (this._valuesEnd[property]) === 'string') {\n\t\t\t\t\t\tthis._valuesStartRepeat[property] = this._valuesStartRepeat[property] + parseFloat(this._valuesEnd[property]);\n\t\t\t\t\t}\n\n\t\t\t\t\tif (this._yoyo) {\n\t\t\t\t\t\tvar tmp = this._valuesStartRepeat[property];\n\n\t\t\t\t\t\tthis._valuesStartRepeat[property] = this._valuesEnd[property];\n\t\t\t\t\t\tthis._valuesEnd[property] = tmp;\n\t\t\t\t\t}\n\n\t\t\t\t\tthis._valuesStart[property] = this._valuesStartRepeat[property];\n\n\t\t\t\t}\n\n\t\t\t\tif (this._yoyo) {\n\t\t\t\t\tthis._reversed = !this._reversed;\n\t\t\t\t}\n\n\t\t\t\tif (this._repeatDelayTime !== undefined) {\n\t\t\t\t\tthis._startTime = time + this._repeatDelayTime;\n\t\t\t\t} else {\n\t\t\t\t\tthis._startTime = time + this._delayTime;\n\t\t\t\t}\n\n\t\t\t\treturn true;\n\n\t\t\t} else {\n\n\t\t\t\tif (this._onCompleteCallback !== null) {\n\n\t\t\t\t\tthis._onCompleteCallback.call(this._object, this._object);\n\t\t\t\t}\n\n\t\t\t\tfor (var i = 0, numChainedTweens = this._chainedTweens.length; i < numChainedTweens; i++) {\n\t\t\t\t\t// Make the chained tweens start exactly at the time they should,\n\t\t\t\t\t// even if the `update()` method was called way past the duration of the tween\n\t\t\t\t\tthis._chainedTweens[i].start(this._startTime + this._duration);\n\t\t\t\t}\n\n\t\t\t\treturn false;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn true;\n\n\t}\n};\n\n\nTWEEN.Easing = {\n\n\tLinear: {\n\n\t\tNone: function (k) {\n\n\t\t\treturn k;\n\n\t\t}\n\n\t},\n\n\tQuadratic: {\n\n\t\tIn: function (k) {\n\n\t\t\treturn k * k;\n\n\t\t},\n\n\t\tOut: function (k) {\n\n\t\t\treturn k * (2 - k);\n\n\t\t},\n\n\t\tInOut: function (k) {\n\n\t\t\tif ((k *= 2) < 1) {\n\t\t\t\treturn 0.5 * k * k;\n\t\t\t}\n\n\t\t\treturn - 0.5 * (--k * (k - 2) - 1);\n\n\t\t}\n\n\t},\n\n\tCubic: {\n\n\t\tIn: function (k) {\n\n\t\t\treturn k * k * k;\n\n\t\t},\n\n\t\tOut: function (k) {\n\n\t\t\treturn --k * k * k + 1;\n\n\t\t},\n\n\t\tInOut: function (k) {\n\n\t\t\tif ((k *= 2) < 1) {\n\t\t\t\treturn 0.5 * k * k * k;\n\t\t\t}\n\n\t\t\treturn 0.5 * ((k -= 2) * k * k + 2);\n\n\t\t}\n\n\t},\n\n\tQuartic: {\n\n\t\tIn: function (k) {\n\n\t\t\treturn k * k * k * k;\n\n\t\t},\n\n\t\tOut: function (k) {\n\n\t\t\treturn 1 - (--k * k * k * k);\n\n\t\t},\n\n\t\tInOut: function (k) {\n\n\t\t\tif ((k *= 2) < 1) {\n\t\t\t\treturn 0.5 * k * k * k * k;\n\t\t\t}\n\n\t\t\treturn - 0.5 * ((k -= 2) * k * k * k - 2);\n\n\t\t}\n\n\t},\n\n\tQuintic: {\n\n\t\tIn: function (k) {\n\n\t\t\treturn k * k * k * k * k;\n\n\t\t},\n\n\t\tOut: function (k) {\n\n\t\t\treturn --k * k * k * k * k + 1;\n\n\t\t},\n\n\t\tInOut: function (k) {\n\n\t\t\tif ((k *= 2) < 1) {\n\t\t\t\treturn 0.5 * k * k * k * k * k;\n\t\t\t}\n\n\t\t\treturn 0.5 * ((k -= 2) * k * k * k * k + 2);\n\n\t\t}\n\n\t},\n\n\tSinusoidal: {\n\n\t\tIn: function (k) {\n\n\t\t\treturn 1 - Math.cos(k * Math.PI / 2);\n\n\t\t},\n\n\t\tOut: function (k) {\n\n\t\t\treturn Math.sin(k * Math.PI / 2);\n\n\t\t},\n\n\t\tInOut: function (k) {\n\n\t\t\treturn 0.5 * (1 - Math.cos(Math.PI * k));\n\n\t\t}\n\n\t},\n\n\tExponential: {\n\n\t\tIn: function (k) {\n\n\t\t\treturn k === 0 ? 0 : Math.pow(1024, k - 1);\n\n\t\t},\n\n\t\tOut: function (k) {\n\n\t\t\treturn k === 1 ? 1 : 1 - Math.pow(2, - 10 * k);\n\n\t\t},\n\n\t\tInOut: function (k) {\n\n\t\t\tif (k === 0) {\n\t\t\t\treturn 0;\n\t\t\t}\n\n\t\t\tif (k === 1) {\n\t\t\t\treturn 1;\n\t\t\t}\n\n\t\t\tif ((k *= 2) < 1) {\n\t\t\t\treturn 0.5 * Math.pow(1024, k - 1);\n\t\t\t}\n\n\t\t\treturn 0.5 * (- Math.pow(2, - 10 * (k - 1)) + 2);\n\n\t\t}\n\n\t},\n\n\tCircular: {\n\n\t\tIn: function (k) {\n\n\t\t\treturn 1 - Math.sqrt(1 - k * k);\n\n\t\t},\n\n\t\tOut: function (k) {\n\n\t\t\treturn Math.sqrt(1 - (--k * k));\n\n\t\t},\n\n\t\tInOut: function (k) {\n\n\t\t\tif ((k *= 2) < 1) {\n\t\t\t\treturn - 0.5 * (Math.sqrt(1 - k * k) - 1);\n\t\t\t}\n\n\t\t\treturn 0.5 * (Math.sqrt(1 - (k -= 2) * k) + 1);\n\n\t\t}\n\n\t},\n\n\tElastic: {\n\n\t\tIn: function (k) {\n\n\t\t\tif (k === 0) {\n\t\t\t\treturn 0;\n\t\t\t}\n\n\t\t\tif (k === 1) {\n\t\t\t\treturn 1;\n\t\t\t}\n\n\t\t\treturn -Math.pow(2, 10 * (k - 1)) * Math.sin((k - 1.1) * 5 * Math.PI);\n\n\t\t},\n\n\t\tOut: function (k) {\n\n\t\t\tif (k === 0) {\n\t\t\t\treturn 0;\n\t\t\t}\n\n\t\t\tif (k === 1) {\n\t\t\t\treturn 1;\n\t\t\t}\n\n\t\t\treturn Math.pow(2, -10 * k) * Math.sin((k - 0.1) * 5 * Math.PI) + 1;\n\n\t\t},\n\n\t\tInOut: function (k) {\n\n\t\t\tif (k === 0) {\n\t\t\t\treturn 0;\n\t\t\t}\n\n\t\t\tif (k === 1) {\n\t\t\t\treturn 1;\n\t\t\t}\n\n\t\t\tk *= 2;\n\n\t\t\tif (k < 1) {\n\t\t\t\treturn -0.5 * Math.pow(2, 10 * (k - 1)) * Math.sin((k - 1.1) * 5 * Math.PI);\n\t\t\t}\n\n\t\t\treturn 0.5 * Math.pow(2, -10 * (k - 1)) * Math.sin((k - 1.1) * 5 * Math.PI) + 1;\n\n\t\t}\n\n\t},\n\n\tBack: {\n\n\t\tIn: function (k) {\n\n\t\t\tvar s = 1.70158;\n\n\t\t\treturn k * k * ((s + 1) * k - s);\n\n\t\t},\n\n\t\tOut: function (k) {\n\n\t\t\tvar s = 1.70158;\n\n\t\t\treturn --k * k * ((s + 1) * k + s) + 1;\n\n\t\t},\n\n\t\tInOut: function (k) {\n\n\t\t\tvar s = 1.70158 * 1.525;\n\n\t\t\tif ((k *= 2) < 1) {\n\t\t\t\treturn 0.5 * (k * k * ((s + 1) * k - s));\n\t\t\t}\n\n\t\t\treturn 0.5 * ((k -= 2) * k * ((s + 1) * k + s) + 2);\n\n\t\t}\n\n\t},\n\n\tBounce: {\n\n\t\tIn: function (k) {\n\n\t\t\treturn 1 - TWEEN.Easing.Bounce.Out(1 - k);\n\n\t\t},\n\n\t\tOut: function (k) {\n\n\t\t\tif (k < (1 / 2.75)) {\n\t\t\t\treturn 7.5625 * k * k;\n\t\t\t} else if (k < (2 / 2.75)) {\n\t\t\t\treturn 7.5625 * (k -= (1.5 / 2.75)) * k + 0.75;\n\t\t\t} else if (k < (2.5 / 2.75)) {\n\t\t\t\treturn 7.5625 * (k -= (2.25 / 2.75)) * k + 0.9375;\n\t\t\t} else {\n\t\t\t\treturn 7.5625 * (k -= (2.625 / 2.75)) * k + 0.984375;\n\t\t\t}\n\n\t\t},\n\n\t\tInOut: function (k) {\n\n\t\t\tif (k < 0.5) {\n\t\t\t\treturn TWEEN.Easing.Bounce.In(k * 2) * 0.5;\n\t\t\t}\n\n\t\t\treturn TWEEN.Easing.Bounce.Out(k * 2 - 1) * 0.5 + 0.5;\n\n\t\t}\n\n\t}\n\n};\n\nTWEEN.Interpolation = {\n\n\tLinear: function (v, k) {\n\n\t\tvar m = v.length - 1;\n\t\tvar f = m * k;\n\t\tvar i = Math.floor(f);\n\t\tvar fn = TWEEN.Interpolation.Utils.Linear;\n\n\t\tif (k < 0) {\n\t\t\treturn fn(v[0], v[1], f);\n\t\t}\n\n\t\tif (k > 1) {\n\t\t\treturn fn(v[m], v[m - 1], m - f);\n\t\t}\n\n\t\treturn fn(v[i], v[i + 1 > m ? m : i + 1], f - i);\n\n\t},\n\n\tBezier: function (v, k) {\n\n\t\tvar b = 0;\n\t\tvar n = v.length - 1;\n\t\tvar pw = Math.pow;\n\t\tvar bn = TWEEN.Interpolation.Utils.Bernstein;\n\n\t\tfor (var i = 0; i <= n; i++) {\n\t\t\tb += pw(1 - k, n - i) * pw(k, i) * v[i] * bn(n, i);\n\t\t}\n\n\t\treturn b;\n\n\t},\n\n\tCatmullRom: function (v, k) {\n\n\t\tvar m = v.length - 1;\n\t\tvar f = m * k;\n\t\tvar i = Math.floor(f);\n\t\tvar fn = TWEEN.Interpolation.Utils.CatmullRom;\n\n\t\tif (v[0] === v[m]) {\n\n\t\t\tif (k < 0) {\n\t\t\t\ti = Math.floor(f = m * (1 + k));\n\t\t\t}\n\n\t\t\treturn fn(v[(i - 1 + m) % m], v[i], v[(i + 1) % m], v[(i + 2) % m], f - i);\n\n\t\t} else {\n\n\t\t\tif (k < 0) {\n\t\t\t\treturn v[0] - (fn(v[0], v[0], v[1], v[1], -f) - v[0]);\n\t\t\t}\n\n\t\t\tif (k > 1) {\n\t\t\t\treturn v[m] - (fn(v[m], v[m], v[m - 1], v[m - 1], f - m) - v[m]);\n\t\t\t}\n\n\t\t\treturn fn(v[i ? i - 1 : 0], v[i], v[m < i + 1 ? m : i + 1], v[m < i + 2 ? m : i + 2], f - i);\n\n\t\t}\n\n\t},\n\n\tUtils: {\n\n\t\tLinear: function (p0, p1, t) {\n\n\t\t\treturn (p1 - p0) * t + p0;\n\n\t\t},\n\n\t\tBernstein: function (n, i) {\n\n\t\t\tvar fc = TWEEN.Interpolation.Utils.Factorial;\n\n\t\t\treturn fc(n) / fc(i) / fc(n - i);\n\n\t\t},\n\n\t\tFactorial: (function () {\n\n\t\t\tvar a = [1];\n\n\t\t\treturn function (n) {\n\n\t\t\t\tvar s = 1;\n\n\t\t\t\tif (a[n]) {\n\t\t\t\t\treturn a[n];\n\t\t\t\t}\n\n\t\t\t\tfor (var i = n; i > 1; i--) {\n\t\t\t\t\ts *= i;\n\t\t\t\t}\n\n\t\t\t\ta[n] = s;\n\t\t\t\treturn s;\n\n\t\t\t};\n\n\t\t})(),\n\n\t\tCatmullRom: function (p0, p1, p2, p3, t) {\n\n\t\t\tvar v0 = (p2 - p0) * 0.5;\n\t\t\tvar v1 = (p3 - p1) * 0.5;\n\t\t\tvar t2 = t * t;\n\t\t\tvar t3 = t * t2;\n\n\t\t\treturn (2 * p1 - 2 * p2 + v0 + v1) * t3 + (- 3 * p1 + 3 * p2 - 2 * v0 - v1) * t2 + v0 * t + p1;\n\n\t\t}\n\n\t}\n\n};\n\n// UMD (Universal Module Definition)\n(function (root) {\n\n\tif (typeof define === 'function' && define.amd) {\n\n\t\t// AMD\n\t\tdefine([], function () {\n\t\t\treturn TWEEN;\n\t\t});\n\n\t} else if (typeof module !== 'undefined' && typeof exports === 'object') {\n\n\t\t// Node.js\n\t\tmodule.exports = TWEEN;\n\n\t} else if (root !== undefined) {\n\n\t\t// Global variable\n\t\troot.TWEEN = TWEEN;\n\n\t}\n\n})(this);\n","var str = Object.prototype.toString\n\nmodule.exports = anArray\n\nfunction anArray(arr) {\n  return (\n       arr.BYTES_PER_ELEMENT\n    && str.call(arr.buffer) === '[object ArrayBuffer]'\n    || Array.isArray(arr)\n  )\n}\n","module.exports = function numtype(num, def) {\n\treturn typeof num === 'number'\n\t\t? num \n\t\t: (typeof def === 'number' ? def : 0)\n}","'use strict'\n\nexports.byteLength = byteLength\nexports.toByteArray = toByteArray\nexports.fromByteArray = fromByteArray\n\nvar lookup = []\nvar revLookup = []\nvar Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array\n\nvar code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'\nfor (var i = 0, len = code.length; i < len; ++i) {\n  lookup[i] = code[i]\n  revLookup[code.charCodeAt(i)] = i\n}\n\nrevLookup['-'.charCodeAt(0)] = 62\nrevLookup['_'.charCodeAt(0)] = 63\n\nfunction placeHoldersCount (b64) {\n  var len = b64.length\n  if (len % 4 > 0) {\n    throw new Error('Invalid string. Length must be a multiple of 4')\n  }\n\n  // the number of equal signs (place holders)\n  // if there are two placeholders, than the two characters before it\n  // represent one byte\n  // if there is only one, then the three characters before it represent 2 bytes\n  // this is just a cheap hack to not do indexOf twice\n  return b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0\n}\n\nfunction byteLength (b64) {\n  // base64 is 4/3 + up to two characters of the original data\n  return (b64.length * 3 / 4) - placeHoldersCount(b64)\n}\n\nfunction toByteArray (b64) {\n  var i, l, tmp, placeHolders, arr\n  var len = b64.length\n  placeHolders = placeHoldersCount(b64)\n\n  arr = new Arr((len * 3 / 4) - placeHolders)\n\n  // if there are placeholders, only get up to the last complete 4 chars\n  l = placeHolders > 0 ? len - 4 : len\n\n  var L = 0\n\n  for (i = 0; i < l; i += 4) {\n    tmp = (revLookup[b64.charCodeAt(i)] << 18) | (revLookup[b64.charCodeAt(i + 1)] << 12) | (revLookup[b64.charCodeAt(i + 2)] << 6) | revLookup[b64.charCodeAt(i + 3)]\n    arr[L++] = (tmp >> 16) & 0xFF\n    arr[L++] = (tmp >> 8) & 0xFF\n    arr[L++] = tmp & 0xFF\n  }\n\n  if (placeHolders === 2) {\n    tmp = (revLookup[b64.charCodeAt(i)] << 2) | (revLookup[b64.charCodeAt(i + 1)] >> 4)\n    arr[L++] = tmp & 0xFF\n  } else if (placeHolders === 1) {\n    tmp = (revLookup[b64.charCodeAt(i)] << 10) | (revLookup[b64.charCodeAt(i + 1)] << 4) | (revLookup[b64.charCodeAt(i + 2)] >> 2)\n    arr[L++] = (tmp >> 8) & 0xFF\n    arr[L++] = tmp & 0xFF\n  }\n\n  return arr\n}\n\nfunction tripletToBase64 (num) {\n  return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F]\n}\n\nfunction encodeChunk (uint8, start, end) {\n  var tmp\n  var output = []\n  for (var i = start; i < end; i += 3) {\n    tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])\n    output.push(tripletToBase64(tmp))\n  }\n  return output.join('')\n}\n\nfunction fromByteArray (uint8) {\n  var tmp\n  var len = uint8.length\n  var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes\n  var output = ''\n  var parts = []\n  var maxChunkLength = 16383 // must be multiple of 3\n\n  // go through the array every three bytes, we'll deal with trailing stuff later\n  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {\n    parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))\n  }\n\n  // pad the end with zeros, but make sure to not forget the extra bytes\n  if (extraBytes === 1) {\n    tmp = uint8[len - 1]\n    output += lookup[tmp >> 2]\n    output += lookup[(tmp << 4) & 0x3F]\n    output += '=='\n  } else if (extraBytes === 2) {\n    tmp = (uint8[len - 2] << 8) + (uint8[len - 1])\n    output += lookup[tmp >> 10]\n    output += lookup[(tmp >> 4) & 0x3F]\n    output += lookup[(tmp << 2) & 0x3F]\n    output += '='\n  }\n\n  parts.push(output)\n\n  return parts.join('')\n}\n","'use strict';\n// For more information about browser field, check out the browser field at https://github.com/substack/browserify-handbook#browser-field.\n\nmodule.exports = {\n    // Create a <link> tag with optional data attributes\n    createLink: function(href, attributes) {\n        var head = document.head || document.getElementsByTagName('head')[0];\n        var link = document.createElement('link');\n\n        link.href = href;\n        link.rel = 'stylesheet';\n\n        for (var key in attributes) {\n            if ( ! attributes.hasOwnProperty(key)) {\n                continue;\n            }\n            var value = attributes[key];\n            link.setAttribute('data-' + key, value);\n        }\n\n        head.appendChild(link);\n    },\n    // Create a <style> tag with optional data attributes\n    createStyle: function(cssText, attributes) {\n        var head = document.head || document.getElementsByTagName('head')[0],\n            style = document.createElement('style');\n\n        style.type = 'text/css';\n\n        for (var key in attributes) {\n            if ( ! attributes.hasOwnProperty(key)) {\n                continue;\n            }\n            var value = attributes[key];\n            style.setAttribute('data-' + key, value);\n        }\n        \n        if (style.sheet) { // for jsdom and IE9+\n            style.innerHTML = cssText;\n            style.sheet.cssText = cssText;\n            head.appendChild(style);\n        } else if (style.styleSheet) { // for IE8 and below\n            head.appendChild(style);\n            style.styleSheet.cssText = cssText;\n        } else { // for Chrome, Firefox, and Safari\n            style.appendChild(document.createTextNode(cssText));\n            head.appendChild(style);\n        }\n    }\n};\n","// shim for using process in browser\nvar process = module.exports = {};\n\n// cached from whatever global is present so that test runners that stub it\n// don't break things.  But we need to wrap it in a try catch in case it is\n// wrapped in strict mode code which doesn't define any globals.  It's inside a\n// function because try/catches deoptimize in certain engines.\n\nvar cachedSetTimeout;\nvar cachedClearTimeout;\n\nfunction defaultSetTimout() {\n    throw new Error('setTimeout has not been defined');\n}\nfunction defaultClearTimeout () {\n    throw new Error('clearTimeout has not been defined');\n}\n(function () {\n    try {\n        if (typeof setTimeout === 'function') {\n            cachedSetTimeout = setTimeout;\n        } else {\n            cachedSetTimeout = defaultSetTimout;\n        }\n    } catch (e) {\n        cachedSetTimeout = defaultSetTimout;\n    }\n    try {\n        if (typeof clearTimeout === 'function') {\n            cachedClearTimeout = clearTimeout;\n        } else {\n            cachedClearTimeout = defaultClearTimeout;\n        }\n    } catch (e) {\n        cachedClearTimeout = defaultClearTimeout;\n    }\n} ())\nfunction runTimeout(fun) {\n    if (cachedSetTimeout === setTimeout) {\n        //normal enviroments in sane situations\n        return setTimeout(fun, 0);\n    }\n    // if setTimeout wasn't available but was latter defined\n    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {\n        cachedSetTimeout = setTimeout;\n        return setTimeout(fun, 0);\n    }\n    try {\n        // when when somebody has screwed with setTimeout but no I.E. maddness\n        return cachedSetTimeout(fun, 0);\n    } catch(e){\n        try {\n            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally\n            return cachedSetTimeout.call(null, fun, 0);\n        } catch(e){\n            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error\n            return cachedSetTimeout.call(this, fun, 0);\n        }\n    }\n\n\n}\nfunction runClearTimeout(marker) {\n    if (cachedClearTimeout === clearTimeout) {\n        //normal enviroments in sane situations\n        return clearTimeout(marker);\n    }\n    // if clearTimeout wasn't available but was latter defined\n    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {\n        cachedClearTimeout = clearTimeout;\n        return clearTimeout(marker);\n    }\n    try {\n        // when when somebody has screwed with setTimeout but no I.E. maddness\n        return cachedClearTimeout(marker);\n    } catch (e){\n        try {\n            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally\n            return cachedClearTimeout.call(null, marker);\n        } catch (e){\n            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.\n            // Some versions of I.E. have different rules for clearTimeout vs setTimeout\n            return cachedClearTimeout.call(this, marker);\n        }\n    }\n\n\n\n}\nvar queue = [];\nvar draining = false;\nvar currentQueue;\nvar queueIndex = -1;\n\nfunction cleanUpNextTick() {\n    if (!draining || !currentQueue) {\n        return;\n    }\n    draining = false;\n    if (currentQueue.length) {\n        queue = currentQueue.concat(queue);\n    } else {\n        queueIndex = -1;\n    }\n    if (queue.length) {\n        drainQueue();\n    }\n}\n\nfunction drainQueue() {\n    if (draining) {\n        return;\n    }\n    var timeout = runTimeout(cleanUpNextTick);\n    draining = true;\n\n    var len = queue.length;\n    while(len) {\n        currentQueue = queue;\n        queue = [];\n        while (++queueIndex < len) {\n            if (currentQueue) {\n                currentQueue[queueIndex].run();\n            }\n        }\n        queueIndex = -1;\n        len = queue.length;\n    }\n    currentQueue = null;\n    draining = false;\n    runClearTimeout(timeout);\n}\n\nprocess.nextTick = function (fun) {\n    var args = new Array(arguments.length - 1);\n    if (arguments.length > 1) {\n        for (var i = 1; i < arguments.length; i++) {\n            args[i - 1] = arguments[i];\n        }\n    }\n    queue.push(new Item(fun, args));\n    if (queue.length === 1 && !draining) {\n        runTimeout(drainQueue);\n    }\n};\n\n// v8 likes predictible objects\nfunction Item(fun, array) {\n    this.fun = fun;\n    this.array = array;\n}\nItem.prototype.run = function () {\n    this.fun.apply(null, this.array);\n};\nprocess.title = 'browser';\nprocess.browser = true;\nprocess.env = {};\nprocess.argv = [];\nprocess.version = ''; // empty string to avoid regexp issues\nprocess.versions = {};\n\nfunction noop() {}\n\nprocess.on = noop;\nprocess.addListener = noop;\nprocess.once = noop;\nprocess.off = noop;\nprocess.removeListener = noop;\nprocess.removeAllListeners = noop;\nprocess.emit = noop;\nprocess.prependListener = noop;\nprocess.prependOnceListener = noop;\n\nprocess.listeners = function (name) { return [] }\n\nprocess.binding = function (name) {\n    throw new Error('process.binding is not supported');\n};\n\nprocess.cwd = function () { return '/' };\nprocess.chdir = function (dir) {\n    throw new Error('process.chdir is not supported');\n};\nprocess.umask = function() { return 0; };\n","var Buffer = require('buffer').Buffer; // for use with browserify\n\nmodule.exports = function (a, b) {\n    if (!Buffer.isBuffer(a)) return undefined;\n    if (!Buffer.isBuffer(b)) return undefined;\n    if (typeof a.equals === 'function') return a.equals(b);\n    if (a.length !== b.length) return false;\n    \n    for (var i = 0; i < a.length; i++) {\n        if (a[i] !== b[i]) return false;\n    }\n    \n    return true;\n};\n","/*!\n * The buffer module from node.js, for the browser.\n *\n * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>\n * @license  MIT\n */\n/* eslint-disable no-proto */\n\n'use strict'\n\nvar base64 = require('base64-js')\nvar ieee754 = require('ieee754')\nvar isArray = require('isarray')\n\nexports.Buffer = Buffer\nexports.SlowBuffer = SlowBuffer\nexports.INSPECT_MAX_BYTES = 50\n\n/**\n * If `Buffer.TYPED_ARRAY_SUPPORT`:\n *   === true    Use Uint8Array implementation (fastest)\n *   === false   Use Object implementation (most compatible, even IE6)\n *\n * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,\n * Opera 11.6+, iOS 4.2+.\n *\n * Due to various browser bugs, sometimes the Object implementation will be used even\n * when the browser supports typed arrays.\n *\n * Note:\n *\n *   - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances,\n *     See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438.\n *\n *   - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function.\n *\n *   - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of\n *     incorrect length in some situations.\n\n * We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they\n * get the Object implementation, which is slower but behaves correctly.\n */\nBuffer.TYPED_ARRAY_SUPPORT = global.TYPED_ARRAY_SUPPORT !== undefined\n  ? global.TYPED_ARRAY_SUPPORT\n  : typedArraySupport()\n\n/*\n * Export kMaxLength after typed array support is determined.\n */\nexports.kMaxLength = kMaxLength()\n\nfunction typedArraySupport () {\n  try {\n    var arr = new Uint8Array(1)\n    arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }}\n    return arr.foo() === 42 && // typed array instances can be augmented\n        typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray`\n        arr.subarray(1, 1).byteLength === 0 // ie10 has broken `subarray`\n  } catch (e) {\n    return false\n  }\n}\n\nfunction kMaxLength () {\n  return Buffer.TYPED_ARRAY_SUPPORT\n    ? 0x7fffffff\n    : 0x3fffffff\n}\n\nfunction createBuffer (that, length) {\n  if (kMaxLength() < length) {\n    throw new RangeError('Invalid typed array length')\n  }\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    // Return an augmented `Uint8Array` instance, for best performance\n    that = new Uint8Array(length)\n    that.__proto__ = Buffer.prototype\n  } else {\n    // Fallback: Return an object instance of the Buffer class\n    if (that === null) {\n      that = new Buffer(length)\n    }\n    that.length = length\n  }\n\n  return that\n}\n\n/**\n * The Buffer constructor returns instances of `Uint8Array` that have their\n * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of\n * `Uint8Array`, so the returned instances will have all the node `Buffer` methods\n * and the `Uint8Array` methods. Square bracket notation works as expected -- it\n * returns a single octet.\n *\n * The `Uint8Array` prototype remains unmodified.\n */\n\nfunction Buffer (arg, encodingOrOffset, length) {\n  if (!Buffer.TYPED_ARRAY_SUPPORT && !(this instanceof Buffer)) {\n    return new Buffer(arg, encodingOrOffset, length)\n  }\n\n  // Common case.\n  if (typeof arg === 'number') {\n    if (typeof encodingOrOffset === 'string') {\n      throw new Error(\n        'If encoding is specified then the first argument must be a string'\n      )\n    }\n    return allocUnsafe(this, arg)\n  }\n  return from(this, arg, encodingOrOffset, length)\n}\n\nBuffer.poolSize = 8192 // not used by this implementation\n\n// TODO: Legacy, not needed anymore. Remove in next major version.\nBuffer._augment = function (arr) {\n  arr.__proto__ = Buffer.prototype\n  return arr\n}\n\nfunction from (that, value, encodingOrOffset, length) {\n  if (typeof value === 'number') {\n    throw new TypeError('\"value\" argument must not be a number')\n  }\n\n  if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {\n    return fromArrayBuffer(that, value, encodingOrOffset, length)\n  }\n\n  if (typeof value === 'string') {\n    return fromString(that, value, encodingOrOffset)\n  }\n\n  return fromObject(that, value)\n}\n\n/**\n * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError\n * if value is a number.\n * Buffer.from(str[, encoding])\n * Buffer.from(array)\n * Buffer.from(buffer)\n * Buffer.from(arrayBuffer[, byteOffset[, length]])\n **/\nBuffer.from = function (value, encodingOrOffset, length) {\n  return from(null, value, encodingOrOffset, length)\n}\n\nif (Buffer.TYPED_ARRAY_SUPPORT) {\n  Buffer.prototype.__proto__ = Uint8Array.prototype\n  Buffer.__proto__ = Uint8Array\n  if (typeof Symbol !== 'undefined' && Symbol.species &&\n      Buffer[Symbol.species] === Buffer) {\n    // Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97\n    Object.defineProperty(Buffer, Symbol.species, {\n      value: null,\n      configurable: true\n    })\n  }\n}\n\nfunction assertSize (size) {\n  if (typeof size !== 'number') {\n    throw new TypeError('\"size\" argument must be a number')\n  } else if (size < 0) {\n    throw new RangeError('\"size\" argument must not be negative')\n  }\n}\n\nfunction alloc (that, size, fill, encoding) {\n  assertSize(size)\n  if (size <= 0) {\n    return createBuffer(that, size)\n  }\n  if (fill !== undefined) {\n    // Only pay attention to encoding if it's a string. This\n    // prevents accidentally sending in a number that would\n    // be interpretted as a start offset.\n    return typeof encoding === 'string'\n      ? createBuffer(that, size).fill(fill, encoding)\n      : createBuffer(that, size).fill(fill)\n  }\n  return createBuffer(that, size)\n}\n\n/**\n * Creates a new filled Buffer instance.\n * alloc(size[, fill[, encoding]])\n **/\nBuffer.alloc = function (size, fill, encoding) {\n  return alloc(null, size, fill, encoding)\n}\n\nfunction allocUnsafe (that, size) {\n  assertSize(size)\n  that = createBuffer(that, size < 0 ? 0 : checked(size) | 0)\n  if (!Buffer.TYPED_ARRAY_SUPPORT) {\n    for (var i = 0; i < size; ++i) {\n      that[i] = 0\n    }\n  }\n  return that\n}\n\n/**\n * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.\n * */\nBuffer.allocUnsafe = function (size) {\n  return allocUnsafe(null, size)\n}\n/**\n * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.\n */\nBuffer.allocUnsafeSlow = function (size) {\n  return allocUnsafe(null, size)\n}\n\nfunction fromString (that, string, encoding) {\n  if (typeof encoding !== 'string' || encoding === '') {\n    encoding = 'utf8'\n  }\n\n  if (!Buffer.isEncoding(encoding)) {\n    throw new TypeError('\"encoding\" must be a valid string encoding')\n  }\n\n  var length = byteLength(string, encoding) | 0\n  that = createBuffer(that, length)\n\n  var actual = that.write(string, encoding)\n\n  if (actual !== length) {\n    // Writing a hex string, for example, that contains invalid characters will\n    // cause everything after the first invalid character to be ignored. (e.g.\n    // 'abxxcd' will be treated as 'ab')\n    that = that.slice(0, actual)\n  }\n\n  return that\n}\n\nfunction fromArrayLike (that, array) {\n  var length = array.length < 0 ? 0 : checked(array.length) | 0\n  that = createBuffer(that, length)\n  for (var i = 0; i < length; i += 1) {\n    that[i] = array[i] & 255\n  }\n  return that\n}\n\nfunction fromArrayBuffer (that, array, byteOffset, length) {\n  array.byteLength // this throws if `array` is not a valid ArrayBuffer\n\n  if (byteOffset < 0 || array.byteLength < byteOffset) {\n    throw new RangeError('\\'offset\\' is out of bounds')\n  }\n\n  if (array.byteLength < byteOffset + (length || 0)) {\n    throw new RangeError('\\'length\\' is out of bounds')\n  }\n\n  if (byteOffset === undefined && length === undefined) {\n    array = new Uint8Array(array)\n  } else if (length === undefined) {\n    array = new Uint8Array(array, byteOffset)\n  } else {\n    array = new Uint8Array(array, byteOffset, length)\n  }\n\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    // Return an augmented `Uint8Array` instance, for best performance\n    that = array\n    that.__proto__ = Buffer.prototype\n  } else {\n    // Fallback: Return an object instance of the Buffer class\n    that = fromArrayLike(that, array)\n  }\n  return that\n}\n\nfunction fromObject (that, obj) {\n  if (Buffer.isBuffer(obj)) {\n    var len = checked(obj.length) | 0\n    that = createBuffer(that, len)\n\n    if (that.length === 0) {\n      return that\n    }\n\n    obj.copy(that, 0, 0, len)\n    return that\n  }\n\n  if (obj) {\n    if ((typeof ArrayBuffer !== 'undefined' &&\n        obj.buffer instanceof ArrayBuffer) || 'length' in obj) {\n      if (typeof obj.length !== 'number' || isnan(obj.length)) {\n        return createBuffer(that, 0)\n      }\n      return fromArrayLike(that, obj)\n    }\n\n    if (obj.type === 'Buffer' && isArray(obj.data)) {\n      return fromArrayLike(that, obj.data)\n    }\n  }\n\n  throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')\n}\n\nfunction checked (length) {\n  // Note: cannot use `length < kMaxLength()` here because that fails when\n  // length is NaN (which is otherwise coerced to zero.)\n  if (length >= kMaxLength()) {\n    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +\n                         'size: 0x' + kMaxLength().toString(16) + ' bytes')\n  }\n  return length | 0\n}\n\nfunction SlowBuffer (length) {\n  if (+length != length) { // eslint-disable-line eqeqeq\n    length = 0\n  }\n  return Buffer.alloc(+length)\n}\n\nBuffer.isBuffer = function isBuffer (b) {\n  return !!(b != null && b._isBuffer)\n}\n\nBuffer.compare = function compare (a, b) {\n  if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {\n    throw new TypeError('Arguments must be Buffers')\n  }\n\n  if (a === b) return 0\n\n  var x = a.length\n  var y = b.length\n\n  for (var i = 0, len = Math.min(x, y); i < len; ++i) {\n    if (a[i] !== b[i]) {\n      x = a[i]\n      y = b[i]\n      break\n    }\n  }\n\n  if (x < y) return -1\n  if (y < x) return 1\n  return 0\n}\n\nBuffer.isEncoding = function isEncoding (encoding) {\n  switch (String(encoding).toLowerCase()) {\n    case 'hex':\n    case 'utf8':\n    case 'utf-8':\n    case 'ascii':\n    case 'latin1':\n    case 'binary':\n    case 'base64':\n    case 'ucs2':\n    case 'ucs-2':\n    case 'utf16le':\n    case 'utf-16le':\n      return true\n    default:\n      return false\n  }\n}\n\nBuffer.concat = function concat (list, length) {\n  if (!isArray(list)) {\n    throw new TypeError('\"list\" argument must be an Array of Buffers')\n  }\n\n  if (list.length === 0) {\n    return Buffer.alloc(0)\n  }\n\n  var i\n  if (length === undefined) {\n    length = 0\n    for (i = 0; i < list.length; ++i) {\n      length += list[i].length\n    }\n  }\n\n  var buffer = Buffer.allocUnsafe(length)\n  var pos = 0\n  for (i = 0; i < list.length; ++i) {\n    var buf = list[i]\n    if (!Buffer.isBuffer(buf)) {\n      throw new TypeError('\"list\" argument must be an Array of Buffers')\n    }\n    buf.copy(buffer, pos)\n    pos += buf.length\n  }\n  return buffer\n}\n\nfunction byteLength (string, encoding) {\n  if (Buffer.isBuffer(string)) {\n    return string.length\n  }\n  if (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'function' &&\n      (ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) {\n    return string.byteLength\n  }\n  if (typeof string !== 'string') {\n    string = '' + string\n  }\n\n  var len = string.length\n  if (len === 0) return 0\n\n  // Use a for loop to avoid recursion\n  var loweredCase = false\n  for (;;) {\n    switch (encoding) {\n      case 'ascii':\n      case 'latin1':\n      case 'binary':\n        return len\n      case 'utf8':\n      case 'utf-8':\n      case undefined:\n        return utf8ToBytes(string).length\n      case 'ucs2':\n      case 'ucs-2':\n      case 'utf16le':\n      case 'utf-16le':\n        return len * 2\n      case 'hex':\n        return len >>> 1\n      case 'base64':\n        return base64ToBytes(string).length\n      default:\n        if (loweredCase) return utf8ToBytes(string).length // assume utf8\n        encoding = ('' + encoding).toLowerCase()\n        loweredCase = true\n    }\n  }\n}\nBuffer.byteLength = byteLength\n\nfunction slowToString (encoding, start, end) {\n  var loweredCase = false\n\n  // No need to verify that \"this.length <= MAX_UINT32\" since it's a read-only\n  // property of a typed array.\n\n  // This behaves neither like String nor Uint8Array in that we set start/end\n  // to their upper/lower bounds if the value passed is out of range.\n  // undefined is handled specially as per ECMA-262 6th Edition,\n  // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.\n  if (start === undefined || start < 0) {\n    start = 0\n  }\n  // Return early if start > this.length. Done here to prevent potential uint32\n  // coercion fail below.\n  if (start > this.length) {\n    return ''\n  }\n\n  if (end === undefined || end > this.length) {\n    end = this.length\n  }\n\n  if (end <= 0) {\n    return ''\n  }\n\n  // Force coersion to uint32. This will also coerce falsey/NaN values to 0.\n  end >>>= 0\n  start >>>= 0\n\n  if (end <= start) {\n    return ''\n  }\n\n  if (!encoding) encoding = 'utf8'\n\n  while (true) {\n    switch (encoding) {\n      case 'hex':\n        return hexSlice(this, start, end)\n\n      case 'utf8':\n      case 'utf-8':\n        return utf8Slice(this, start, end)\n\n      case 'ascii':\n        return asciiSlice(this, start, end)\n\n      case 'latin1':\n      case 'binary':\n        return latin1Slice(this, start, end)\n\n      case 'base64':\n        return base64Slice(this, start, end)\n\n      case 'ucs2':\n      case 'ucs-2':\n      case 'utf16le':\n      case 'utf-16le':\n        return utf16leSlice(this, start, end)\n\n      default:\n        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)\n        encoding = (encoding + '').toLowerCase()\n        loweredCase = true\n    }\n  }\n}\n\n// The property is used by `Buffer.isBuffer` and `is-buffer` (in Safari 5-7) to detect\n// Buffer instances.\nBuffer.prototype._isBuffer = true\n\nfunction swap (b, n, m) {\n  var i = b[n]\n  b[n] = b[m]\n  b[m] = i\n}\n\nBuffer.prototype.swap16 = function swap16 () {\n  var len = this.length\n  if (len % 2 !== 0) {\n    throw new RangeError('Buffer size must be a multiple of 16-bits')\n  }\n  for (var i = 0; i < len; i += 2) {\n    swap(this, i, i + 1)\n  }\n  return this\n}\n\nBuffer.prototype.swap32 = function swap32 () {\n  var len = this.length\n  if (len % 4 !== 0) {\n    throw new RangeError('Buffer size must be a multiple of 32-bits')\n  }\n  for (var i = 0; i < len; i += 4) {\n    swap(this, i, i + 3)\n    swap(this, i + 1, i + 2)\n  }\n  return this\n}\n\nBuffer.prototype.swap64 = function swap64 () {\n  var len = this.length\n  if (len % 8 !== 0) {\n    throw new RangeError('Buffer size must be a multiple of 64-bits')\n  }\n  for (var i = 0; i < len; i += 8) {\n    swap(this, i, i + 7)\n    swap(this, i + 1, i + 6)\n    swap(this, i + 2, i + 5)\n    swap(this, i + 3, i + 4)\n  }\n  return this\n}\n\nBuffer.prototype.toString = function toString () {\n  var length = this.length | 0\n  if (length === 0) return ''\n  if (arguments.length === 0) return utf8Slice(this, 0, length)\n  return slowToString.apply(this, arguments)\n}\n\nBuffer.prototype.equals = function equals (b) {\n  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')\n  if (this === b) return true\n  return Buffer.compare(this, b) === 0\n}\n\nBuffer.prototype.inspect = function inspect () {\n  var str = ''\n  var max = exports.INSPECT_MAX_BYTES\n  if (this.length > 0) {\n    str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')\n    if (this.length > max) str += ' ... '\n  }\n  return '<Buffer ' + str + '>'\n}\n\nBuffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {\n  if (!Buffer.isBuffer(target)) {\n    throw new TypeError('Argument must be a Buffer')\n  }\n\n  if (start === undefined) {\n    start = 0\n  }\n  if (end === undefined) {\n    end = target ? target.length : 0\n  }\n  if (thisStart === undefined) {\n    thisStart = 0\n  }\n  if (thisEnd === undefined) {\n    thisEnd = this.length\n  }\n\n  if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {\n    throw new RangeError('out of range index')\n  }\n\n  if (thisStart >= thisEnd && start >= end) {\n    return 0\n  }\n  if (thisStart >= thisEnd) {\n    return -1\n  }\n  if (start >= end) {\n    return 1\n  }\n\n  start >>>= 0\n  end >>>= 0\n  thisStart >>>= 0\n  thisEnd >>>= 0\n\n  if (this === target) return 0\n\n  var x = thisEnd - thisStart\n  var y = end - start\n  var len = Math.min(x, y)\n\n  var thisCopy = this.slice(thisStart, thisEnd)\n  var targetCopy = target.slice(start, end)\n\n  for (var i = 0; i < len; ++i) {\n    if (thisCopy[i] !== targetCopy[i]) {\n      x = thisCopy[i]\n      y = targetCopy[i]\n      break\n    }\n  }\n\n  if (x < y) return -1\n  if (y < x) return 1\n  return 0\n}\n\n// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,\n// OR the last index of `val` in `buffer` at offset <= `byteOffset`.\n//\n// Arguments:\n// - buffer - a Buffer to search\n// - val - a string, Buffer, or number\n// - byteOffset - an index into `buffer`; will be clamped to an int32\n// - encoding - an optional encoding, relevant is val is a string\n// - dir - true for indexOf, false for lastIndexOf\nfunction bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {\n  // Empty buffer means no match\n  if (buffer.length === 0) return -1\n\n  // Normalize byteOffset\n  if (typeof byteOffset === 'string') {\n    encoding = byteOffset\n    byteOffset = 0\n  } else if (byteOffset > 0x7fffffff) {\n    byteOffset = 0x7fffffff\n  } else if (byteOffset < -0x80000000) {\n    byteOffset = -0x80000000\n  }\n  byteOffset = +byteOffset  // Coerce to Number.\n  if (isNaN(byteOffset)) {\n    // byteOffset: it it's undefined, null, NaN, \"foo\", etc, search whole buffer\n    byteOffset = dir ? 0 : (buffer.length - 1)\n  }\n\n  // Normalize byteOffset: negative offsets start from the end of the buffer\n  if (byteOffset < 0) byteOffset = buffer.length + byteOffset\n  if (byteOffset >= buffer.length) {\n    if (dir) return -1\n    else byteOffset = buffer.length - 1\n  } else if (byteOffset < 0) {\n    if (dir) byteOffset = 0\n    else return -1\n  }\n\n  // Normalize val\n  if (typeof val === 'string') {\n    val = Buffer.from(val, encoding)\n  }\n\n  // Finally, search either indexOf (if dir is true) or lastIndexOf\n  if (Buffer.isBuffer(val)) {\n    // Special case: looking for empty string/buffer always fails\n    if (val.length === 0) {\n      return -1\n    }\n    return arrayIndexOf(buffer, val, byteOffset, encoding, dir)\n  } else if (typeof val === 'number') {\n    val = val & 0xFF // Search for a byte value [0-255]\n    if (Buffer.TYPED_ARRAY_SUPPORT &&\n        typeof Uint8Array.prototype.indexOf === 'function') {\n      if (dir) {\n        return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)\n      } else {\n        return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)\n      }\n    }\n    return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)\n  }\n\n  throw new TypeError('val must be string, number or Buffer')\n}\n\nfunction arrayIndexOf (arr, val, byteOffset, encoding, dir) {\n  var indexSize = 1\n  var arrLength = arr.length\n  var valLength = val.length\n\n  if (encoding !== undefined) {\n    encoding = String(encoding).toLowerCase()\n    if (encoding === 'ucs2' || encoding === 'ucs-2' ||\n        encoding === 'utf16le' || encoding === 'utf-16le') {\n      if (arr.length < 2 || val.length < 2) {\n        return -1\n      }\n      indexSize = 2\n      arrLength /= 2\n      valLength /= 2\n      byteOffset /= 2\n    }\n  }\n\n  function read (buf, i) {\n    if (indexSize === 1) {\n      return buf[i]\n    } else {\n      return buf.readUInt16BE(i * indexSize)\n    }\n  }\n\n  var i\n  if (dir) {\n    var foundIndex = -1\n    for (i = byteOffset; i < arrLength; i++) {\n      if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {\n        if (foundIndex === -1) foundIndex = i\n        if (i - foundIndex + 1 === valLength) return foundIndex * indexSize\n      } else {\n        if (foundIndex !== -1) i -= i - foundIndex\n        foundIndex = -1\n      }\n    }\n  } else {\n    if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength\n    for (i = byteOffset; i >= 0; i--) {\n      var found = true\n      for (var j = 0; j < valLength; j++) {\n        if (read(arr, i + j) !== read(val, j)) {\n          found = false\n          break\n        }\n      }\n      if (found) return i\n    }\n  }\n\n  return -1\n}\n\nBuffer.prototype.includes = function includes (val, byteOffset, encoding) {\n  return this.indexOf(val, byteOffset, encoding) !== -1\n}\n\nBuffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {\n  return bidirectionalIndexOf(this, val, byteOffset, encoding, true)\n}\n\nBuffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {\n  return bidirectionalIndexOf(this, val, byteOffset, encoding, false)\n}\n\nfunction hexWrite (buf, string, offset, length) {\n  offset = Number(offset) || 0\n  var remaining = buf.length - offset\n  if (!length) {\n    length = remaining\n  } else {\n    length = Number(length)\n    if (length > remaining) {\n      length = remaining\n    }\n  }\n\n  // must be an even number of digits\n  var strLen = string.length\n  if (strLen % 2 !== 0) throw new TypeError('Invalid hex string')\n\n  if (length > strLen / 2) {\n    length = strLen / 2\n  }\n  for (var i = 0; i < length; ++i) {\n    var parsed = parseInt(string.substr(i * 2, 2), 16)\n    if (isNaN(parsed)) return i\n    buf[offset + i] = parsed\n  }\n  return i\n}\n\nfunction utf8Write (buf, string, offset, length) {\n  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)\n}\n\nfunction asciiWrite (buf, string, offset, length) {\n  return blitBuffer(asciiToBytes(string), buf, offset, length)\n}\n\nfunction latin1Write (buf, string, offset, length) {\n  return asciiWrite(buf, string, offset, length)\n}\n\nfunction base64Write (buf, string, offset, length) {\n  return blitBuffer(base64ToBytes(string), buf, offset, length)\n}\n\nfunction ucs2Write (buf, string, offset, length) {\n  return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)\n}\n\nBuffer.prototype.write = function write (string, offset, length, encoding) {\n  // Buffer#write(string)\n  if (offset === undefined) {\n    encoding = 'utf8'\n    length = this.length\n    offset = 0\n  // Buffer#write(string, encoding)\n  } else if (length === undefined && typeof offset === 'string') {\n    encoding = offset\n    length = this.length\n    offset = 0\n  // Buffer#write(string, offset[, length][, encoding])\n  } else if (isFinite(offset)) {\n    offset = offset | 0\n    if (isFinite(length)) {\n      length = length | 0\n      if (encoding === undefined) encoding = 'utf8'\n    } else {\n      encoding = length\n      length = undefined\n    }\n  // legacy write(string, encoding, offset, length) - remove in v0.13\n  } else {\n    throw new Error(\n      'Buffer.write(string, encoding, offset[, length]) is no longer supported'\n    )\n  }\n\n  var remaining = this.length - offset\n  if (length === undefined || length > remaining) length = remaining\n\n  if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {\n    throw new RangeError('Attempt to write outside buffer bounds')\n  }\n\n  if (!encoding) encoding = 'utf8'\n\n  var loweredCase = false\n  for (;;) {\n    switch (encoding) {\n      case 'hex':\n        return hexWrite(this, string, offset, length)\n\n      case 'utf8':\n      case 'utf-8':\n        return utf8Write(this, string, offset, length)\n\n      case 'ascii':\n        return asciiWrite(this, string, offset, length)\n\n      case 'latin1':\n      case 'binary':\n        return latin1Write(this, string, offset, length)\n\n      case 'base64':\n        // Warning: maxLength not taken into account in base64Write\n        return base64Write(this, string, offset, length)\n\n      case 'ucs2':\n      case 'ucs-2':\n      case 'utf16le':\n      case 'utf-16le':\n        return ucs2Write(this, string, offset, length)\n\n      default:\n        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)\n        encoding = ('' + encoding).toLowerCase()\n        loweredCase = true\n    }\n  }\n}\n\nBuffer.prototype.toJSON = function toJSON () {\n  return {\n    type: 'Buffer',\n    data: Array.prototype.slice.call(this._arr || this, 0)\n  }\n}\n\nfunction base64Slice (buf, start, end) {\n  if (start === 0 && end === buf.length) {\n    return base64.fromByteArray(buf)\n  } else {\n    return base64.fromByteArray(buf.slice(start, end))\n  }\n}\n\nfunction utf8Slice (buf, start, end) {\n  end = Math.min(buf.length, end)\n  var res = []\n\n  var i = start\n  while (i < end) {\n    var firstByte = buf[i]\n    var codePoint = null\n    var bytesPerSequence = (firstByte > 0xEF) ? 4\n      : (firstByte > 0xDF) ? 3\n      : (firstByte > 0xBF) ? 2\n      : 1\n\n    if (i + bytesPerSequence <= end) {\n      var secondByte, thirdByte, fourthByte, tempCodePoint\n\n      switch (bytesPerSequence) {\n        case 1:\n          if (firstByte < 0x80) {\n            codePoint = firstByte\n          }\n          break\n        case 2:\n          secondByte = buf[i + 1]\n          if ((secondByte & 0xC0) === 0x80) {\n            tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)\n            if (tempCodePoint > 0x7F) {\n              codePoint = tempCodePoint\n            }\n          }\n          break\n        case 3:\n          secondByte = buf[i + 1]\n          thirdByte = buf[i + 2]\n          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {\n            tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)\n            if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {\n              codePoint = tempCodePoint\n            }\n          }\n          break\n        case 4:\n          secondByte = buf[i + 1]\n          thirdByte = buf[i + 2]\n          fourthByte = buf[i + 3]\n          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {\n            tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)\n            if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {\n              codePoint = tempCodePoint\n            }\n          }\n      }\n    }\n\n    if (codePoint === null) {\n      // we did not generate a valid codePoint so insert a\n      // replacement char (U+FFFD) and advance only 1 byte\n      codePoint = 0xFFFD\n      bytesPerSequence = 1\n    } else if (codePoint > 0xFFFF) {\n      // encode to utf16 (surrogate pair dance)\n      codePoint -= 0x10000\n      res.push(codePoint >>> 10 & 0x3FF | 0xD800)\n      codePoint = 0xDC00 | codePoint & 0x3FF\n    }\n\n    res.push(codePoint)\n    i += bytesPerSequence\n  }\n\n  return decodeCodePointsArray(res)\n}\n\n// Based on http://stackoverflow.com/a/22747272/680742, the browser with\n// the lowest limit is Chrome, with 0x10000 args.\n// We go 1 magnitude less, for safety\nvar MAX_ARGUMENTS_LENGTH = 0x1000\n\nfunction decodeCodePointsArray (codePoints) {\n  var len = codePoints.length\n  if (len <= MAX_ARGUMENTS_LENGTH) {\n    return String.fromCharCode.apply(String, codePoints) // avoid extra slice()\n  }\n\n  // Decode in chunks to avoid \"call stack size exceeded\".\n  var res = ''\n  var i = 0\n  while (i < len) {\n    res += String.fromCharCode.apply(\n      String,\n      codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)\n    )\n  }\n  return res\n}\n\nfunction asciiSlice (buf, start, end) {\n  var ret = ''\n  end = Math.min(buf.length, end)\n\n  for (var i = start; i < end; ++i) {\n    ret += String.fromCharCode(buf[i] & 0x7F)\n  }\n  return ret\n}\n\nfunction latin1Slice (buf, start, end) {\n  var ret = ''\n  end = Math.min(buf.length, end)\n\n  for (var i = start; i < end; ++i) {\n    ret += String.fromCharCode(buf[i])\n  }\n  return ret\n}\n\nfunction hexSlice (buf, start, end) {\n  var len = buf.length\n\n  if (!start || start < 0) start = 0\n  if (!end || end < 0 || end > len) end = len\n\n  var out = ''\n  for (var i = start; i < end; ++i) {\n    out += toHex(buf[i])\n  }\n  return out\n}\n\nfunction utf16leSlice (buf, start, end) {\n  var bytes = buf.slice(start, end)\n  var res = ''\n  for (var i = 0; i < bytes.length; i += 2) {\n    res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256)\n  }\n  return res\n}\n\nBuffer.prototype.slice = function slice (start, end) {\n  var len = this.length\n  start = ~~start\n  end = end === undefined ? len : ~~end\n\n  if (start < 0) {\n    start += len\n    if (start < 0) start = 0\n  } else if (start > len) {\n    start = len\n  }\n\n  if (end < 0) {\n    end += len\n    if (end < 0) end = 0\n  } else if (end > len) {\n    end = len\n  }\n\n  if (end < start) end = start\n\n  var newBuf\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    newBuf = this.subarray(start, end)\n    newBuf.__proto__ = Buffer.prototype\n  } else {\n    var sliceLen = end - start\n    newBuf = new Buffer(sliceLen, undefined)\n    for (var i = 0; i < sliceLen; ++i) {\n      newBuf[i] = this[i + start]\n    }\n  }\n\n  return newBuf\n}\n\n/*\n * Need to make sure that buffer isn't trying to write out of bounds.\n */\nfunction checkOffset (offset, ext, length) {\n  if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')\n  if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')\n}\n\nBuffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {\n  offset = offset | 0\n  byteLength = byteLength | 0\n  if (!noAssert) checkOffset(offset, byteLength, this.length)\n\n  var val = this[offset]\n  var mul = 1\n  var i = 0\n  while (++i < byteLength && (mul *= 0x100)) {\n    val += this[offset + i] * mul\n  }\n\n  return val\n}\n\nBuffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {\n  offset = offset | 0\n  byteLength = byteLength | 0\n  if (!noAssert) {\n    checkOffset(offset, byteLength, this.length)\n  }\n\n  var val = this[offset + --byteLength]\n  var mul = 1\n  while (byteLength > 0 && (mul *= 0x100)) {\n    val += this[offset + --byteLength] * mul\n  }\n\n  return val\n}\n\nBuffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 1, this.length)\n  return this[offset]\n}\n\nBuffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 2, this.length)\n  return this[offset] | (this[offset + 1] << 8)\n}\n\nBuffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 2, this.length)\n  return (this[offset] << 8) | this[offset + 1]\n}\n\nBuffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 4, this.length)\n\n  return ((this[offset]) |\n      (this[offset + 1] << 8) |\n      (this[offset + 2] << 16)) +\n      (this[offset + 3] * 0x1000000)\n}\n\nBuffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 4, this.length)\n\n  return (this[offset] * 0x1000000) +\n    ((this[offset + 1] << 16) |\n    (this[offset + 2] << 8) |\n    this[offset + 3])\n}\n\nBuffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {\n  offset = offset | 0\n  byteLength = byteLength | 0\n  if (!noAssert) checkOffset(offset, byteLength, this.length)\n\n  var val = this[offset]\n  var mul = 1\n  var i = 0\n  while (++i < byteLength && (mul *= 0x100)) {\n    val += this[offset + i] * mul\n  }\n  mul *= 0x80\n\n  if (val >= mul) val -= Math.pow(2, 8 * byteLength)\n\n  return val\n}\n\nBuffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {\n  offset = offset | 0\n  byteLength = byteLength | 0\n  if (!noAssert) checkOffset(offset, byteLength, this.length)\n\n  var i = byteLength\n  var mul = 1\n  var val = this[offset + --i]\n  while (i > 0 && (mul *= 0x100)) {\n    val += this[offset + --i] * mul\n  }\n  mul *= 0x80\n\n  if (val >= mul) val -= Math.pow(2, 8 * byteLength)\n\n  return val\n}\n\nBuffer.prototype.readInt8 = function readInt8 (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 1, this.length)\n  if (!(this[offset] & 0x80)) return (this[offset])\n  return ((0xff - this[offset] + 1) * -1)\n}\n\nBuffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 2, this.length)\n  var val = this[offset] | (this[offset + 1] << 8)\n  return (val & 0x8000) ? val | 0xFFFF0000 : val\n}\n\nBuffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 2, this.length)\n  var val = this[offset + 1] | (this[offset] << 8)\n  return (val & 0x8000) ? val | 0xFFFF0000 : val\n}\n\nBuffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 4, this.length)\n\n  return (this[offset]) |\n    (this[offset + 1] << 8) |\n    (this[offset + 2] << 16) |\n    (this[offset + 3] << 24)\n}\n\nBuffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 4, this.length)\n\n  return (this[offset] << 24) |\n    (this[offset + 1] << 16) |\n    (this[offset + 2] << 8) |\n    (this[offset + 3])\n}\n\nBuffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 4, this.length)\n  return ieee754.read(this, offset, true, 23, 4)\n}\n\nBuffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 4, this.length)\n  return ieee754.read(this, offset, false, 23, 4)\n}\n\nBuffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 8, this.length)\n  return ieee754.read(this, offset, true, 52, 8)\n}\n\nBuffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 8, this.length)\n  return ieee754.read(this, offset, false, 52, 8)\n}\n\nfunction checkInt (buf, value, offset, ext, max, min) {\n  if (!Buffer.isBuffer(buf)) throw new TypeError('\"buffer\" argument must be a Buffer instance')\n  if (value > max || value < min) throw new RangeError('\"value\" argument is out of bounds')\n  if (offset + ext > buf.length) throw new RangeError('Index out of range')\n}\n\nBuffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {\n  value = +value\n  offset = offset | 0\n  byteLength = byteLength | 0\n  if (!noAssert) {\n    var maxBytes = Math.pow(2, 8 * byteLength) - 1\n    checkInt(this, value, offset, byteLength, maxBytes, 0)\n  }\n\n  var mul = 1\n  var i = 0\n  this[offset] = value & 0xFF\n  while (++i < byteLength && (mul *= 0x100)) {\n    this[offset + i] = (value / mul) & 0xFF\n  }\n\n  return offset + byteLength\n}\n\nBuffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {\n  value = +value\n  offset = offset | 0\n  byteLength = byteLength | 0\n  if (!noAssert) {\n    var maxBytes = Math.pow(2, 8 * byteLength) - 1\n    checkInt(this, value, offset, byteLength, maxBytes, 0)\n  }\n\n  var i = byteLength - 1\n  var mul = 1\n  this[offset + i] = value & 0xFF\n  while (--i >= 0 && (mul *= 0x100)) {\n    this[offset + i] = (value / mul) & 0xFF\n  }\n\n  return offset + byteLength\n}\n\nBuffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)\n  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)\n  this[offset] = (value & 0xff)\n  return offset + 1\n}\n\nfunction objectWriteUInt16 (buf, value, offset, littleEndian) {\n  if (value < 0) value = 0xffff + value + 1\n  for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; ++i) {\n    buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>\n      (littleEndian ? i : 1 - i) * 8\n  }\n}\n\nBuffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = (value & 0xff)\n    this[offset + 1] = (value >>> 8)\n  } else {\n    objectWriteUInt16(this, value, offset, true)\n  }\n  return offset + 2\n}\n\nBuffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = (value >>> 8)\n    this[offset + 1] = (value & 0xff)\n  } else {\n    objectWriteUInt16(this, value, offset, false)\n  }\n  return offset + 2\n}\n\nfunction objectWriteUInt32 (buf, value, offset, littleEndian) {\n  if (value < 0) value = 0xffffffff + value + 1\n  for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; ++i) {\n    buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff\n  }\n}\n\nBuffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset + 3] = (value >>> 24)\n    this[offset + 2] = (value >>> 16)\n    this[offset + 1] = (value >>> 8)\n    this[offset] = (value & 0xff)\n  } else {\n    objectWriteUInt32(this, value, offset, true)\n  }\n  return offset + 4\n}\n\nBuffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = (value >>> 24)\n    this[offset + 1] = (value >>> 16)\n    this[offset + 2] = (value >>> 8)\n    this[offset + 3] = (value & 0xff)\n  } else {\n    objectWriteUInt32(this, value, offset, false)\n  }\n  return offset + 4\n}\n\nBuffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) {\n    var limit = Math.pow(2, 8 * byteLength - 1)\n\n    checkInt(this, value, offset, byteLength, limit - 1, -limit)\n  }\n\n  var i = 0\n  var mul = 1\n  var sub = 0\n  this[offset] = value & 0xFF\n  while (++i < byteLength && (mul *= 0x100)) {\n    if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {\n      sub = 1\n    }\n    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF\n  }\n\n  return offset + byteLength\n}\n\nBuffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) {\n    var limit = Math.pow(2, 8 * byteLength - 1)\n\n    checkInt(this, value, offset, byteLength, limit - 1, -limit)\n  }\n\n  var i = byteLength - 1\n  var mul = 1\n  var sub = 0\n  this[offset + i] = value & 0xFF\n  while (--i >= 0 && (mul *= 0x100)) {\n    if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {\n      sub = 1\n    }\n    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF\n  }\n\n  return offset + byteLength\n}\n\nBuffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)\n  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)\n  if (value < 0) value = 0xff + value + 1\n  this[offset] = (value & 0xff)\n  return offset + 1\n}\n\nBuffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = (value & 0xff)\n    this[offset + 1] = (value >>> 8)\n  } else {\n    objectWriteUInt16(this, value, offset, true)\n  }\n  return offset + 2\n}\n\nBuffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = (value >>> 8)\n    this[offset + 1] = (value & 0xff)\n  } else {\n    objectWriteUInt16(this, value, offset, false)\n  }\n  return offset + 2\n}\n\nBuffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = (value & 0xff)\n    this[offset + 1] = (value >>> 8)\n    this[offset + 2] = (value >>> 16)\n    this[offset + 3] = (value >>> 24)\n  } else {\n    objectWriteUInt32(this, value, offset, true)\n  }\n  return offset + 4\n}\n\nBuffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)\n  if (value < 0) value = 0xffffffff + value + 1\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = (value >>> 24)\n    this[offset + 1] = (value >>> 16)\n    this[offset + 2] = (value >>> 8)\n    this[offset + 3] = (value & 0xff)\n  } else {\n    objectWriteUInt32(this, value, offset, false)\n  }\n  return offset + 4\n}\n\nfunction checkIEEE754 (buf, value, offset, ext, max, min) {\n  if (offset + ext > buf.length) throw new RangeError('Index out of range')\n  if (offset < 0) throw new RangeError('Index out of range')\n}\n\nfunction writeFloat (buf, value, offset, littleEndian, noAssert) {\n  if (!noAssert) {\n    checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)\n  }\n  ieee754.write(buf, value, offset, littleEndian, 23, 4)\n  return offset + 4\n}\n\nBuffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {\n  return writeFloat(this, value, offset, true, noAssert)\n}\n\nBuffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {\n  return writeFloat(this, value, offset, false, noAssert)\n}\n\nfunction writeDouble (buf, value, offset, littleEndian, noAssert) {\n  if (!noAssert) {\n    checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)\n  }\n  ieee754.write(buf, value, offset, littleEndian, 52, 8)\n  return offset + 8\n}\n\nBuffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {\n  return writeDouble(this, value, offset, true, noAssert)\n}\n\nBuffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {\n  return writeDouble(this, value, offset, false, noAssert)\n}\n\n// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)\nBuffer.prototype.copy = function copy (target, targetStart, start, end) {\n  if (!start) start = 0\n  if (!end && end !== 0) end = this.length\n  if (targetStart >= target.length) targetStart = target.length\n  if (!targetStart) targetStart = 0\n  if (end > 0 && end < start) end = start\n\n  // Copy 0 bytes; we're done\n  if (end === start) return 0\n  if (target.length === 0 || this.length === 0) return 0\n\n  // Fatal error conditions\n  if (targetStart < 0) {\n    throw new RangeError('targetStart out of bounds')\n  }\n  if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')\n  if (end < 0) throw new RangeError('sourceEnd out of bounds')\n\n  // Are we oob?\n  if (end > this.length) end = this.length\n  if (target.length - targetStart < end - start) {\n    end = target.length - targetStart + start\n  }\n\n  var len = end - start\n  var i\n\n  if (this === target && start < targetStart && targetStart < end) {\n    // descending copy from end\n    for (i = len - 1; i >= 0; --i) {\n      target[i + targetStart] = this[i + start]\n    }\n  } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {\n    // ascending copy from start\n    for (i = 0; i < len; ++i) {\n      target[i + targetStart] = this[i + start]\n    }\n  } else {\n    Uint8Array.prototype.set.call(\n      target,\n      this.subarray(start, start + len),\n      targetStart\n    )\n  }\n\n  return len\n}\n\n// Usage:\n//    buffer.fill(number[, offset[, end]])\n//    buffer.fill(buffer[, offset[, end]])\n//    buffer.fill(string[, offset[, end]][, encoding])\nBuffer.prototype.fill = function fill (val, start, end, encoding) {\n  // Handle string cases:\n  if (typeof val === 'string') {\n    if (typeof start === 'string') {\n      encoding = start\n      start = 0\n      end = this.length\n    } else if (typeof end === 'string') {\n      encoding = end\n      end = this.length\n    }\n    if (val.length === 1) {\n      var code = val.charCodeAt(0)\n      if (code < 256) {\n        val = code\n      }\n    }\n    if (encoding !== undefined && typeof encoding !== 'string') {\n      throw new TypeError('encoding must be a string')\n    }\n    if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {\n      throw new TypeError('Unknown encoding: ' + encoding)\n    }\n  } else if (typeof val === 'number') {\n    val = val & 255\n  }\n\n  // Invalid ranges are not set to a default, so can range check early.\n  if (start < 0 || this.length < start || this.length < end) {\n    throw new RangeError('Out of range index')\n  }\n\n  if (end <= start) {\n    return this\n  }\n\n  start = start >>> 0\n  end = end === undefined ? this.length : end >>> 0\n\n  if (!val) val = 0\n\n  var i\n  if (typeof val === 'number') {\n    for (i = start; i < end; ++i) {\n      this[i] = val\n    }\n  } else {\n    var bytes = Buffer.isBuffer(val)\n      ? val\n      : utf8ToBytes(new Buffer(val, encoding).toString())\n    var len = bytes.length\n    for (i = 0; i < end - start; ++i) {\n      this[i + start] = bytes[i % len]\n    }\n  }\n\n  return this\n}\n\n// HELPER FUNCTIONS\n// ================\n\nvar INVALID_BASE64_RE = /[^+\\/0-9A-Za-z-_]/g\n\nfunction base64clean (str) {\n  // Node strips out invalid characters like \\n and \\t from the string, base64-js does not\n  str = stringtrim(str).replace(INVALID_BASE64_RE, '')\n  // Node converts strings with length < 2 to ''\n  if (str.length < 2) return ''\n  // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not\n  while (str.length % 4 !== 0) {\n    str = str + '='\n  }\n  return str\n}\n\nfunction stringtrim (str) {\n  if (str.trim) return str.trim()\n  return str.replace(/^\\s+|\\s+$/g, '')\n}\n\nfunction toHex (n) {\n  if (n < 16) return '0' + n.toString(16)\n  return n.toString(16)\n}\n\nfunction utf8ToBytes (string, units) {\n  units = units || Infinity\n  var codePoint\n  var length = string.length\n  var leadSurrogate = null\n  var bytes = []\n\n  for (var i = 0; i < length; ++i) {\n    codePoint = string.charCodeAt(i)\n\n    // is surrogate component\n    if (codePoint > 0xD7FF && codePoint < 0xE000) {\n      // last char was a lead\n      if (!leadSurrogate) {\n        // no lead yet\n        if (codePoint > 0xDBFF) {\n          // unexpected trail\n          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\n     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hi = c >> 8\n    lo = c % 256\n    byteArray.push(lo)\n    byteArray.push(hi)\n  }\n\n  return byteArray\n}\n\nfunction base64ToBytes (str) {\n  return base64.toByteArray(base64clean(str))\n}\n\nfunction blitBuffer (src, dst, offset, length) {\n  for (var i = 0; i < length; ++i) {\n    if ((i + offset >= dst.length) || (i >= src.length)) break\n    dst[i + offset] = src[i]\n  }\n  return i\n}\n\nfunction isnan (val) {\n  return val !== val // eslint-disable-line no-self-compare\n}\n","var toString = {}.toString;\n\nmodule.exports = Array.isArray || function (arr) {\n  return toString.call(arr) == '[object Array]';\n};\n","\n/**\n * This is the web browser implementation of `debug()`.\n *\n * Expose `debug()` as the module.\n */\n\nexports = module.exports = require('./debug');\nexports.log = log;\nexports.formatArgs = formatArgs;\nexports.save = save;\nexports.load = load;\nexports.useColors = useColors;\nexports.storage = 'undefined' != typeof chrome\n               && 'undefined' != typeof chrome.storage\n                  ? chrome.storage.local\n                  : localstorage();\n\n/**\n * Colors.\n */\n\nexports.colors = [\n  'lightseagreen',\n  'forestgreen',\n  'goldenrod',\n  'dodgerblue',\n  'darkorchid',\n  'crimson'\n];\n\n/**\n * Currently only WebKit-based Web Inspectors, Firefox >= v31,\n * and the Firebug extension (any Firefox version) are known\n * to support \"%c\" CSS customizations.\n *\n * TODO: add a `localStorage` variable to explicitly enable/disable colors\n */\n\nfunction useColors() {\n  // is webkit? http://stackoverflow.com/a/16459606/376773\n  return ('WebkitAppearance' in document.documentElement.style) ||\n    // is firebug? http://stackoverflow.com/a/398120/376773\n    (window.console && (console.firebug || (console.exception && console.table))) ||\n    // is firefox >= v31?\n    // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages\n    (navigator.userAgent.toLowerCase().match(/firefox\\/(\\d+)/) && parseInt(RegExp.$1, 10) >= 31);\n}\n\n/**\n * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.\n */\n\nexports.formatters.j = function(v) {\n  return JSON.stringify(v);\n};\n\n\n/**\n * Colorize log arguments if enabled.\n *\n * @api public\n */\n\nfunction formatArgs() {\n  var args = arguments;\n  var useColors = this.useColors;\n\n  args[0] = (useColors ? 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offset = +(offset || 0) | 0\n\n  if (Array.isArray(data) && Array.isArray(data[0])) {\n    var dim = data[0].length\n    var length = data.length * dim\n\n    // no output specified, create a new typed array\n    if (!output || typeof output === 'string') {\n      output = new (dtype(output || 'float32'))(length + offset)\n    }\n\n    var dstLength = output.length - offset\n    if (length !== dstLength) {\n      throw new Error('source length ' + length + ' (' + dim + 'x' + data.length + ')' +\n        ' does not match destination length ' + dstLength)\n    }\n\n    for (var i = 0, k = offset; i < data.length; i++) {\n      for (var j = 0; j < dim; j++) {\n        output[k++] = data[i][j]\n      }\n    }\n  } else {\n    if (!output || typeof output === 'string') {\n      // no output, create a new one\n      var Ctor = dtype(output || 'float32')\n      if (offset === 0) {\n        output = new Ctor(data)\n      } else {\n        output = new Ctor(data.length + offset)\n        output.set(data, offset)\n      }\n    } else {\n      // store output in existing array\n      output.set(data, offset)\n    }\n  }\n\n  return output\n}\n","var isFunction = require('is-function')\n\nmodule.exports = forEach\n\nvar toString = Object.prototype.toString\nvar hasOwnProperty = Object.prototype.hasOwnProperty\n\nfunction forEach(list, iterator, context) {\n    if (!isFunction(iterator)) {\n        throw new TypeError('iterator must be a function')\n    }\n\n    if (arguments.length < 3) {\n        context = this\n    }\n    \n    if (toString.call(list) === '[object Array]')\n        forEachArray(list, iterator, context)\n    else if (typeof list === 'string')\n        forEachString(list, iterator, context)\n    else\n        forEachObject(list, iterator, context)\n}\n\nfunction forEachArray(array, iterator, context) {\n    for (var i = 0, len = array.length; i < len; i++) {\n        if (hasOwnProperty.call(array, i)) {\n            iterator.call(context, array[i], i, array)\n        }\n    }\n}\n\nfunction forEachString(string, iterator, context) {\n    for (var i = 0, len = string.length; i < len; i++) {\n        // no such thing as a sparse string.\n        iterator.call(context, string.charAt(i), i, string)\n    }\n}\n\nfunction forEachObject(object, iterator, context) {\n    for (var k in object) {\n        if (hasOwnProperty.call(object, k)) {\n            iterator.call(context, object[k], k, object)\n        }\n    }\n}\n","var win;\n\nif (typeof window !== \"undefined\") {\n    win = window;\n} else if (typeof global !== \"undefined\") {\n    win = global;\n} else if (typeof self !== \"undefined\"){\n    win = self;\n} else {\n    win = {};\n}\n\nmodule.exports = win;\n","exports.read = function (buffer, offset, isLE, mLen, nBytes) {\n  var e, m\n  var eLen = nBytes * 8 - mLen - 1\n  var eMax = (1 << eLen) - 1\n  var eBias = eMax >> 1\n  var nBits = -7\n  var i = isLE ? (nBytes - 1) : 0\n  var d = isLE ? -1 : 1\n  var s = buffer[offset + i]\n\n  i += d\n\n  e = s & ((1 << (-nBits)) - 1)\n  s >>= (-nBits)\n  nBits += eLen\n  for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}\n\n  m = e & ((1 << (-nBits)) - 1)\n  e >>= (-nBits)\n  nBits += mLen\n  for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}\n\n  if (e === 0) {\n    e = 1 - eBias\n  } else if (e === eMax) {\n    return m ? NaN : ((s ? -1 : 1) * Infinity)\n  } else {\n    m = m + Math.pow(2, mLen)\n    e = e - eBias\n  }\n  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)\n}\n\nexports.write = function (buffer, value, offset, isLE, mLen, nBytes) {\n  var e, m, c\n  var eLen = nBytes * 8 - mLen - 1\n  var eMax = (1 << eLen) - 1\n  var eBias = eMax >> 1\n  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)\n  var i = isLE ? 0 : (nBytes - 1)\n  var d = isLE ? 1 : -1\n  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0\n\n  value = Math.abs(value)\n\n  if (isNaN(value) || value === Infinity) {\n    m = isNaN(value) ? 1 : 0\n    e = eMax\n  } else {\n    e = Math.floor(Math.log(value) / Math.LN2)\n    if (value * (c = Math.pow(2, -e)) < 1) {\n      e--\n      c *= 2\n    }\n    if (e + eBias >= 1) {\n      value += rt / c\n    } else {\n      value += rt * Math.pow(2, 1 - eBias)\n    }\n    if (value * c >= 2) {\n      e++\n      c /= 2\n    }\n\n    if (e + eBias >= eMax) {\n      m = 0\n      e = eMax\n    } else if (e + eBias >= 1) {\n      m = (value * c - 1) * Math.pow(2, mLen)\n      e = e + eBias\n    } else {\n      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)\n      e = 0\n    }\n  }\n\n  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}\n\n  e = (e << mLen) | m\n  eLen += mLen\n  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}\n\n  buffer[offset + i - d] |= s * 128\n}\n","if (typeof Object.create === 'function') {\n  // implementation from standard node.js 'util' module\n  module.exports = function inherits(ctor, superCtor) {\n    ctor.super_ = superCtor\n    ctor.prototype = Object.create(superCtor.prototype, {\n      constructor: {\n        value: ctor,\n        enumerable: false,\n        writable: true,\n        configurable: true\n      }\n    });\n  };\n} else {\n  // old school shim for old browsers\n  module.exports = function inherits(ctor, superCtor) {\n    ctor.super_ = superCtor\n    var TempCtor = function () {}\n    TempCtor.prototype = superCtor.prototype\n    ctor.prototype = new TempCtor()\n    ctor.prototype.constructor = ctor\n  }\n}\n","/*!\n * Determine if an object is a Buffer\n *\n * @author   Feross Aboukhadijeh <https://feross.org>\n * @license  MIT\n */\n\n// The _isBuffer check is for Safari 5-7 support, because it's missing\n// Object.prototype.constructor. Remove this eventually\nmodule.exports = function (obj) {\n  return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)\n}\n\nfunction isBuffer (obj) {\n  return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)\n}\n\n// For Node v0.10 support. Remove this eventually.\nfunction isSlowBuffer (obj) {\n  return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))\n}\n","module.exports = isFunction\n\nvar toString = Object.prototype.toString\n\nfunction isFunction (fn) {\n  var string = toString.call(fn)\n  return string === '[object Function]' ||\n    (typeof fn === 'function' && string !== '[object RegExp]') ||\n    (typeof window !== 'undefined' &&\n     // IE8 and below\n     (fn === window.setTimeout ||\n      fn === window.alert ||\n      fn === window.confirm ||\n      fn === window.prompt))\n};\n","'use strict';\nmodule.exports = function (x) {\n\tvar type = typeof x;\n\treturn x !== null && (type === 'object' || type === 'function');\n};\n","var wordWrap = require('word-wrapper')\nvar xtend = require('xtend')\nvar number = require('as-number')\n\nvar X_HEIGHTS = ['x', 'e', 'a', 'o', 'n', 's', 'r', 'c', 'u', 'm', 'v', 'w', 'z']\nvar M_WIDTHS = ['m', 'w']\nvar CAP_HEIGHTS = ['H', 'I', 'N', 'E', 'F', 'K', 'L', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z']\n\n\nvar TAB_ID = '\\t'.charCodeAt(0)\nvar SPACE_ID = ' '.charCodeAt(0)\nvar ALIGN_LEFT = 0, \n    ALIGN_CENTER = 1, \n    ALIGN_RIGHT = 2\n\nmodule.exports = function createLayout(opt) {\n  return new TextLayout(opt)\n}\n\nfunction TextLayout(opt) {\n  this.glyphs = []\n  this._measure = this.computeMetrics.bind(this)\n  this.update(opt)\n}\n\nTextLayout.prototype.update = function(opt) {\n  opt = xtend({\n    measure: this._measure\n  }, opt)\n  this._opt = opt\n  this._opt.tabSize = number(this._opt.tabSize, 4)\n\n  if (!opt.font)\n    throw new Error('must provide a valid bitmap font')\n\n  var glyphs = this.glyphs\n  var text = opt.text||'' \n  var font = opt.font\n  this._setupSpaceGlyphs(font)\n  \n  var lines = wordWrap.lines(text, opt)\n  var minWidth = opt.width || 0\n\n  //clear glyphs\n  glyphs.length = 0\n\n  //get max line width\n  var maxLineWidth = lines.reduce(function(prev, line) {\n    return Math.max(prev, line.width, minWidth)\n  }, 0)\n\n  //the pen position\n  var x = 0\n  var y = 0\n  var lineHeight = number(opt.lineHeight, font.common.lineHeight)\n  var baseline = font.common.base\n  var descender = lineHeight-baseline\n  var letterSpacing = opt.letterSpacing || 0\n  var height = lineHeight * lines.length - descender\n  var align = getAlignType(this._opt.align)\n\n  //draw text along baseline\n  y -= height\n  \n  //the metrics for this text layout\n  this._width = maxLineWidth\n  this._height = height\n  this._descender = lineHeight - baseline\n  this._baseline = baseline\n  this._xHeight = getXHeight(font)\n  this._capHeight = getCapHeight(font)\n  this._lineHeight = lineHeight\n  this._ascender = lineHeight - descender - this._xHeight\n    \n  //layout each glyph\n  var self = this\n  lines.forEach(function(line, lineIndex) {\n    var start = line.start\n    var end = line.end\n    var lineWidth = line.width\n    var lastGlyph\n    \n    //for each glyph in that line...\n    for (var i=start; i<end; i++) {\n      var id = text.charCodeAt(i)\n      var glyph = self.getGlyph(font, id)\n      if (glyph) {\n        if (lastGlyph) \n          x += getKerning(font, lastGlyph.id, glyph.id)\n\n        var tx = x\n        if (align === ALIGN_CENTER) \n          tx += (maxLineWidth-lineWidth)/2\n        else if (align === ALIGN_RIGHT)\n          tx += (maxLineWidth-lineWidth)\n\n        glyphs.push({\n          position: [tx, y],\n          data: glyph,\n          index: i,\n          line: lineIndex\n        })  \n\n        //move pen forward\n        x += glyph.xadvance + letterSpacing\n        lastGlyph = glyph\n      }\n    }\n\n    //next line down\n    y += lineHeight\n    x = 0\n  })\n  this._linesTotal = lines.length;\n}\n\nTextLayout.prototype._setupSpaceGlyphs = function(font) {\n  //These are fallbacks, when the font doesn't include\n  //' ' or '\\t' glyphs\n  this._fallbackSpaceGlyph = null\n  this._fallbackTabGlyph = null\n\n  if (!font.chars || font.chars.length === 0)\n    return\n\n  //try to get space glyph\n  //then fall back to the 'm' or 'w' glyphs\n  //then fall back to the first glyph available\n  var space = getGlyphById(font, SPACE_ID) \n          || getMGlyph(font) \n          || font.chars[0]\n\n  //and create a fallback for tab\n  var tabWidth = this._opt.tabSize * space.xadvance\n  this._fallbackSpaceGlyph = space\n  this._fallbackTabGlyph = xtend(space, {\n    x: 0, y: 0, xadvance: tabWidth, id: TAB_ID, \n    xoffset: 0, yoffset: 0, width: 0, height: 0\n  })\n}\n\nTextLayout.prototype.getGlyph = function(font, id) {\n  var glyph = getGlyphById(font, id)\n  if (glyph)\n    return glyph\n  else if (id === TAB_ID) \n    return this._fallbackTabGlyph\n  else if (id === SPACE_ID) \n    return this._fallbackSpaceGlyph\n  return null\n}\n\nTextLayout.prototype.computeMetrics = function(text, start, end, width) {\n  var letterSpacing = this._opt.letterSpacing || 0\n  var font = this._opt.font\n  var curPen = 0\n  var curWidth = 0\n  var count = 0\n  var glyph\n  var lastGlyph\n\n  if (!font.chars || font.chars.length === 0) {\n    return {\n      start: start,\n      end: start,\n      width: 0\n    }\n  }\n\n  end = Math.min(text.length, end)\n  for (var i=start; i < end; i++) {\n    var id = text.charCodeAt(i)\n    var glyph = this.getGlyph(font, id)\n\n    if (glyph) {\n      //move pen forward\n      var xoff = glyph.xoffset\n      var kern = lastGlyph ? getKerning(font, lastGlyph.id, glyph.id) : 0\n      curPen += kern\n\n      var nextPen = curPen + glyph.xadvance + letterSpacing\n      var nextWidth = curPen + glyph.width\n\n      //we've hit our limit; we can't move onto the next glyph\n      if (nextWidth >= width || nextPen >= width)\n        break\n\n      //otherwise continue along our line\n      curPen = nextPen\n      curWidth = nextWidth\n      lastGlyph = glyph\n    }\n    count++\n  }\n  \n  //make sure rightmost edge lines up with rendered glyphs\n  if (lastGlyph)\n    curWidth += lastGlyph.xoffset\n\n  return {\n    start: start,\n    end: start + count,\n    width: curWidth\n  }\n}\n\n//getters for the private vars\n;['width', 'height', \n  'descender', 'ascender',\n  'xHeight', 'baseline',\n  'capHeight',\n  'lineHeight' ].forEach(addGetter)\n\nfunction addGetter(name) {\n  Object.defineProperty(TextLayout.prototype, name, {\n    get: wrapper(name),\n    configurable: true\n  })\n}\n\n//create lookups for private vars\nfunction wrapper(name) {\n  return (new Function([\n    'return function '+name+'() {',\n    '  return this._'+name,\n    '}'\n  ].join('\\n')))()\n}\n\nfunction getGlyphById(font, id) {\n  if (!font.chars || font.chars.length === 0)\n    return null\n\n  var glyphIdx = findChar(font.chars, id)\n  if (glyphIdx >= 0)\n    return font.chars[glyphIdx]\n  return null\n}\n\nfunction getXHeight(font) {\n  for (var i=0; i<X_HEIGHTS.length; i++) {\n    var id = X_HEIGHTS[i].charCodeAt(0)\n    var idx = findChar(font.chars, id)\n    if (idx >= 0) \n      return font.chars[idx].height\n  }\n  return 0\n}\n\nfunction getMGlyph(font) {\n  for (var i=0; i<M_WIDTHS.length; i++) {\n    var id = M_WIDTHS[i].charCodeAt(0)\n    var idx = findChar(font.chars, id)\n    if (idx >= 0) \n      return font.chars[idx]\n  }\n  return 0\n}\n\nfunction getCapHeight(font) {\n  for (var i=0; i<CAP_HEIGHTS.length; i++) {\n    var id = CAP_HEIGHTS[i].charCodeAt(0)\n    var idx = findChar(font.chars, id)\n    if (idx >= 0) \n      return font.chars[idx].height\n  }\n  return 0\n}\n\nfunction getKerning(font, left, right) {\n  if (!font.kernings || font.kernings.length === 0)\n    return 0\n\n  var table = font.kernings\n  for (var i=0; i<table.length; i++) {\n    var kern = table[i]\n    if (kern.first === left && kern.second === right)\n      return kern.amount\n  }\n  return 0\n}\n\nfunction getAlignType(align) {\n  if (align === 'center')\n    return ALIGN_CENTER\n  else if (align === 'right')\n    return ALIGN_RIGHT\n  return ALIGN_LEFT\n}\n\nfunction findChar (array, value, start) {\n  start = start || 0\n  for (var i = start; i < array.length; i++) {\n    if (array[i].id === value) {\n      return i\n    }\n  }\n  return -1\n}","var xhr = require('xhr')\nvar noop = function(){}\nvar parseASCII = require('parse-bmfont-ascii')\nvar parseXML = require('parse-bmfont-xml')\nvar readBinary = require('parse-bmfont-binary')\nvar isBinaryFormat = require('./lib/is-binary')\nvar xtend = require('xtend')\n\nvar xml2 = (function hasXML2() {\n  return self.XMLHttpRequest && \"withCredentials\" in new XMLHttpRequest\n})()\n\nmodule.exports = function(opt, cb) {\n  cb = typeof cb === 'function' ? cb : noop\n\n  if (typeof opt === 'string')\n    opt = { uri: opt }\n  else if (!opt)\n    opt = {}\n\n  var expectBinary = opt.binary\n  if (expectBinary)\n    opt = getBinaryOpts(opt)\n\n  xhr(opt, function(err, res, body) {\n    if (err)\n      return cb(err)\n    if (!/^2/.test(res.statusCode))\n      return cb(new Error('http status code: '+res.statusCode))\n    if (!body)\n      return cb(new Error('no body result'))\n\n    var binary = false \n\n    //if the response type is an array buffer,\n    //we need to convert it into a regular Buffer object\n    if (isArrayBuffer(body)) {\n      var array = new Uint8Array(body)\n      body = new Buffer(array, 'binary')\n    }\n\n    //now check the string/Buffer response\n    //and see if it has a binary BMF header\n    if (isBinaryFormat(body)) {\n      binary = true\n      //if we have a string, turn it into a Buffer\n      if (typeof body === 'string') \n        body = new Buffer(body, 'binary')\n    } \n\n    //we are not parsing a binary format, just ASCII/XML/etc\n    if (!binary) {\n      //might still be a buffer if responseType is 'arraybuffer'\n      if (Buffer.isBuffer(body))\n        body = body.toString(opt.encoding)\n      body = body.trim()\n    }\n\n    var result\n    try {\n      var type = res.headers['content-type']\n      if (binary)\n        result = readBinary(body)\n      else if (/json/.test(type) || body.charAt(0) === '{')\n        result = JSON.parse(body)\n      else if (/xml/.test(type)  || body.charAt(0) === '<')\n        result = parseXML(body)\n      else\n        result = parseASCII(body)\n    } catch (e) {\n      cb(new Error('error parsing font '+e.message))\n      cb = noop\n    }\n    cb(null, result)\n  })\n}\n\nfunction isArrayBuffer(arr) {\n  var str = Object.prototype.toString\n  return str.call(arr) === '[object ArrayBuffer]'\n}\n\nfunction getBinaryOpts(opt) {\n  //IE10+ and other modern browsers support array buffers\n  if (xml2)\n    return xtend(opt, { responseType: 'arraybuffer' })\n  \n  if (typeof self.XMLHttpRequest === 'undefined')\n    throw new Error('your browser does not support XHR loading')\n\n  //IE9 and XML1 browsers could still use an override\n  var req = new self.XMLHttpRequest()\n  req.overrideMimeType('text/plain; charset=x-user-defined')\n  return xtend({\n    xhr: req\n  }, opt)\n}\n","var equal = require('buffer-equal')\nvar HEADER = new Buffer([66, 77, 70, 3])\n\nmodule.exports = function(buf) {\n  if (typeof buf === 'string')\n    return buf.substring(0, 3) === 'BMF'\n  return buf.length > 4 && equal(buf.slice(0, 4), HEADER)\n}","/*\nobject-assign\n(c) Sindre Sorhus\n@license MIT\n*/\n\n'use strict';\n/* eslint-disable no-unused-vars */\nvar getOwnPropertySymbols = Object.getOwnPropertySymbols;\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\nvar propIsEnumerable = Object.prototype.propertyIsEnumerable;\n\nfunction toObject(val) {\n\tif (val === null || val === undefined) {\n\t\tthrow new TypeError('Object.assign cannot be called with null or undefined');\n\t}\n\n\treturn Object(val);\n}\n\nfunction shouldUseNative() {\n\ttry {\n\t\tif (!Object.assign) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Detect buggy property enumeration order in older V8 versions.\n\n\t\t// https://bugs.chromium.org/p/v8/issues/detail?id=4118\n\t\tvar test1 = new String('abc');  // eslint-disable-line no-new-wrappers\n\t\ttest1[5] = 'de';\n\t\tif (Object.getOwnPropertyNames(test1)[0] === '5') {\n\t\t\treturn false;\n\t\t}\n\n\t\t// https://bugs.chromium.org/p/v8/issues/detail?id=3056\n\t\tvar test2 = {};\n\t\tfor (var i = 0; i < 10; i++) {\n\t\t\ttest2['_' + String.fromCharCode(i)] = i;\n\t\t}\n\t\tvar order2 = Object.getOwnPropertyNames(test2).map(function (n) {\n\t\t\treturn test2[n];\n\t\t});\n\t\tif (order2.join('') !== '0123456789') {\n\t\t\treturn false;\n\t\t}\n\n\t\t// https://bugs.chromium.org/p/v8/issues/detail?id=3056\n\t\tvar test3 = {};\n\t\t'abcdefghijklmnopqrst'.split('').forEach(function (letter) {\n\t\t\ttest3[letter] = letter;\n\t\t});\n\t\tif (Object.keys(Object.assign({}, test3)).join('') !==\n\t\t\t\t'abcdefghijklmnopqrst') {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn true;\n\t} catch (err) {\n\t\t// We don't expect any of the above to throw, but better to be safe.\n\t\treturn false;\n\t}\n}\n\nmodule.exports = shouldUseNative() ? Object.assign : function (target, source) {\n\tvar from;\n\tvar to = toObject(target);\n\tvar symbols;\n\n\tfor (var s = 1; s < arguments.length; s++) {\n\t\tfrom = Object(arguments[s]);\n\n\t\tfor (var key in from) {\n\t\t\tif (hasOwnProperty.call(from, key)) {\n\t\t\t\tto[key] = from[key];\n\t\t\t}\n\t\t}\n\n\t\tif (getOwnPropertySymbols) {\n\t\t\tsymbols = getOwnPropertySymbols(from);\n\t\t\tfor (var i = 0; i < symbols.length; i++) {\n\t\t\t\tif (propIsEnumerable.call(from, symbols[i])) {\n\t\t\t\t\tto[symbols[i]] = from[symbols[i]];\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\treturn to;\n};\n","module.exports = function parseBMFontAscii(data) {\n  if (!data)\n    throw new Error('no data provided')\n  data = data.toString().trim()\n\n  var output = {\n    pages: [],\n    chars: [],\n    kernings: []\n  }\n\n  var lines = data.split(/\\r\\n?|\\n/g)\n\n  if (lines.length === 0)\n    throw new Error('no data in BMFont file')\n\n  for (var i = 0; i < lines.length; i++) {\n    var lineData = splitLine(lines[i], i)\n    if (!lineData) //skip empty lines\n      continue\n\n    if (lineData.key === 'page') {\n      if (typeof lineData.data.id !== 'number')\n        throw new Error('malformed file at line ' + i + ' -- needs page id=N')\n      if (typeof lineData.data.file !== 'string')\n        throw new Error('malformed file at line ' + i + ' -- needs page file=\"path\"')\n      output.pages[lineData.data.id] = lineData.data.file\n    } else if (lineData.key === 'chars' || lineData.key === 'kernings') {\n      //... do nothing for these two ...\n    } else if (lineData.key === 'char') {\n      output.chars.push(lineData.data)\n    } else if (lineData.key === 'kerning') {\n      output.kernings.push(lineData.data)\n    } else {\n      output[lineData.key] = lineData.data\n    }\n  }\n\n  return output\n}\n\nfunction splitLine(line, idx) {\n  line = line.replace(/\\t+/g, ' ').trim()\n  if (!line)\n    return null\n\n  var space = line.indexOf(' ')\n  if (space === -1) \n    throw new Error(\"no named row at line \" + idx)\n\n  var key = line.substring(0, space)\n\n  line = line.substring(space + 1)\n  //clear \"letter\" field as it is non-standard and\n  //requires additional complexity to parse \" / = symbols\n  line = line.replace(/letter=[\\'\\\"]\\S+[\\'\\\"]/gi, '')  \n  line = line.split(\"=\")\n  line = line.map(function(str) {\n    return str.trim().match((/(\".*?\"|[^\"\\s]+)+(?=\\s*|\\s*$)/g))\n  })\n\n  var data = []\n  for (var i = 0; i < line.length; i++) {\n    var dt = line[i]\n    if (i === 0) {\n      data.push({\n        key: dt[0],\n        data: \"\"\n      })\n    } else if (i === line.length - 1) {\n      data[data.length - 1].data = parseData(dt[0])\n    } else {\n      data[data.length - 1].data = parseData(dt[0])\n      data.push({\n        key: dt[1],\n        data: \"\"\n      })\n    }\n  }\n\n  var out = {\n    key: key,\n    data: {}\n  }\n\n  data.forEach(function(v) {\n    out.data[v.key] = v.data;\n  })\n\n  return out\n}\n\nfunction parseData(data) {\n  if (!data || data.length === 0)\n    return \"\"\n\n  if (data.indexOf('\"') === 0 || data.indexOf(\"'\") === 0)\n    return data.substring(1, data.length - 1)\n  if (data.indexOf(',') !== -1)\n    return parseIntList(data)\n  return parseInt(data, 10)\n}\n\nfunction parseIntList(data) {\n  return data.split(',').map(function(val) {\n    return parseInt(val, 10)\n  })\n}","var HEADER = [66, 77, 70]\n\nmodule.exports = function readBMFontBinary(buf) {\n  if (buf.length < 6)\n    throw new Error('invalid buffer length for BMFont')\n\n  var header = HEADER.every(function(byte, i) {\n    return buf.readUInt8(i) === byte\n  })\n\n  if (!header)\n    throw new Error('BMFont missing BMF byte header')\n\n  var i = 3\n  var vers = buf.readUInt8(i++)\n  if (vers > 3)\n    throw new Error('Only supports BMFont Binary v3 (BMFont App v1.10)')\n  \n  var target = { kernings: [], chars: [] }\n  for (var b=0; b<5; b++)\n    i += readBlock(target, buf, i)\n  return target\n}\n\nfunction readBlock(target, buf, i) {\n  if (i > buf.length-1)\n    return 0\n\n  var blockID = buf.readUInt8(i++)\n  var blockSize = buf.readInt32LE(i)\n  i += 4\n\n  switch(blockID) {\n    case 1: \n      target.info = readInfo(buf, i)\n      break\n    case 2:\n      target.common = readCommon(buf, i)\n      break\n    case 3:\n      target.pages = readPages(buf, i, blockSize)\n      break\n    case 4:\n      target.chars = readChars(buf, i, blockSize)\n      break\n    case 5:\n      target.kernings = readKernings(buf, i, blockSize)\n      break\n  }\n  return 5 + blockSize\n}\n\nfunction readInfo(buf, i) {\n  var info = {}\n  info.size = buf.readInt16LE(i)\n\n  var bitField = buf.readUInt8(i+2)\n  info.smooth = (bitField >> 7) & 1\n  info.unicode = (bitField >> 6) & 1\n  info.italic = (bitField >> 5) & 1\n  info.bold = (bitField >> 4) & 1\n  \n  //fixedHeight is only mentioned in binary spec \n  if ((bitField >> 3) & 1)\n    info.fixedHeight = 1\n  \n  info.charset = buf.readUInt8(i+3) || ''\n  info.stretchH = buf.readUInt16LE(i+4)\n  info.aa = buf.readUInt8(i+6)\n  info.padding = [\n    buf.readInt8(i+7),\n    buf.readInt8(i+8),\n    buf.readInt8(i+9),\n    buf.readInt8(i+10)\n  ]\n  info.spacing = [\n    buf.readInt8(i+11),\n    buf.readInt8(i+12)\n  ]\n  info.outline = buf.readUInt8(i+13)\n  info.face = readStringNT(buf, i+14)\n  return info\n}\n\nfunction readCommon(buf, i) {\n  var common = {}\n  common.lineHeight = buf.readUInt16LE(i)\n  common.base = buf.readUInt16LE(i+2)\n  common.scaleW = buf.readUInt16LE(i+4)\n  common.scaleH = buf.readUInt16LE(i+6)\n  common.pages = buf.readUInt16LE(i+8)\n  var bitField = buf.readUInt8(i+10)\n  common.packed = 0\n  common.alphaChnl = buf.readUInt8(i+11)\n  common.redChnl = buf.readUInt8(i+12)\n  common.greenChnl = buf.readUInt8(i+13)\n  common.blueChnl = buf.readUInt8(i+14)\n  return common\n}\n\nfunction readPages(buf, i, size) {\n  var pages = []\n  var text = readNameNT(buf, i)\n  var len = text.length+1\n  var count = size / len\n  for (var c=0; c<count; c++) {\n    pages[c] = buf.slice(i, i+text.length).toString('utf8')\n    i += len\n  }\n  return pages\n}\n\nfunction readChars(buf, i, blockSize) {\n  var chars = []\n\n  var count = blockSize / 20\n  for (var c=0; c<count; c++) {\n    var char = {}\n    var off = c*20\n    char.id = buf.readUInt32LE(i + 0 + off)\n    char.x = buf.readUInt16LE(i + 4 + off)\n    char.y = buf.readUInt16LE(i + 6 + off)\n    char.width = buf.readUInt16LE(i + 8 + off)\n    char.height = buf.readUInt16LE(i + 10 + off)\n    char.xoffset = buf.readInt16LE(i + 12 + off)\n    char.yoffset = buf.readInt16LE(i + 14 + off)\n    char.xadvance = buf.readInt16LE(i + 16 + off)\n    char.page = buf.readUInt8(i + 18 + off)\n    char.chnl = buf.readUInt8(i + 19 + off)\n    chars[c] = char\n  }\n  return chars\n}\n\nfunction readKernings(buf, i, blockSize) {\n  var kernings = []\n  var count = blockSize / 10\n  for (var c=0; c<count; c++) {\n    var kern = {}\n    var off = c*10\n    kern.first = buf.readUInt32LE(i + 0 + off)\n    kern.second = buf.readUInt32LE(i + 4 + off)\n    kern.amount = buf.readInt16LE(i + 8 + off)\n    kernings[c] = kern\n  }\n  return kernings\n}\n\nfunction readNameNT(buf, offset) {\n  var pos=offset\n  for (; pos<buf.length; pos++) {\n    if (buf[pos] === 0x00) \n      break\n  }\n  return buf.slice(offset, pos)\n}\n\nfunction readStringNT(buf, offset) {\n  return readNameNT(buf, offset).toString('utf8')\n}","var parseAttributes = require('./parse-attribs')\nvar parseFromString = require('xml-parse-from-string')\n\n//In some cases element.attribute.nodeName can return\n//all lowercase values.. so we need to map them to the correct \n//case\nvar NAME_MAP = {\n  scaleh: 'scaleH',\n  scalew: 'scaleW',\n  stretchh: 'stretchH',\n  lineheight: 'lineHeight',\n  alphachnl: 'alphaChnl',\n  redchnl: 'redChnl',\n  greenchnl: 'greenChnl',\n  bluechnl: 'blueChnl'\n}\n\nmodule.exports = function parse(data) {\n  data = data.toString()\n  \n  var xmlRoot = parseFromString(data)\n  var output = {\n    pages: [],\n    chars: [],\n    kernings: []\n  }\n\n  //get config settings\n  ;['info', 'common'].forEach(function(key) {\n    var element = xmlRoot.getElementsByTagName(key)[0]\n    if (element)\n      output[key] = parseAttributes(getAttribs(element))\n  })\n\n  //get page info\n  var pageRoot = xmlRoot.getElementsByTagName('pages')[0]\n  if (!pageRoot)\n    throw new Error('malformed file -- no <pages> element')\n  var pages = pageRoot.getElementsByTagName('page')\n  for (var i=0; i<pages.length; i++) {\n    var p = pages[i]\n    var id = parseInt(p.getAttribute('id'), 10)\n    var file = p.getAttribute('file')\n    if (isNaN(id))\n      throw new Error('malformed file -- page \"id\" attribute is NaN')\n    if (!file)\n      throw new Error('malformed file -- needs page \"file\" attribute')\n    output.pages[parseInt(id, 10)] = file\n  }\n\n  //get kernings / chars\n  ;['chars', 'kernings'].forEach(function(key) {\n    var element = xmlRoot.getElementsByTagName(key)[0]\n    if (!element)\n      return\n    var childTag = key.substring(0, key.length-1)\n    var children = element.getElementsByTagName(childTag)\n    for (var i=0; i<children.length; i++) {      \n      var child = children[i]\n      output[key].push(parseAttributes(getAttribs(child)))\n    }\n  })\n  return output\n}\n\nfunction getAttribs(element) {\n  var attribs = getAttribList(element)\n  return attribs.reduce(function(dict, attrib) {\n    var key = mapName(attrib.nodeName)\n    dict[key] = attrib.nodeValue\n    return dict\n  }, {})\n}\n\nfunction getAttribList(element) {\n  //IE8+ and modern browsers\n  var attribs = []\n  for (var i=0; i<element.attributes.length; i++)\n    attribs.push(element.attributes[i])\n  return attribs\n}\n\nfunction mapName(nodeName) {\n  return NAME_MAP[nodeName.toLowerCase()] || nodeName\n}","//Some versions of GlyphDesigner have a typo\n//that causes some bugs with parsing. \n//Need to confirm with recent version of the software\n//to see whether this is still an issue or not.\nvar GLYPH_DESIGNER_ERROR = 'chasrset'\n\nmodule.exports = function parseAttributes(obj) {\n  if (GLYPH_DESIGNER_ERROR in obj) {\n    obj['charset'] = obj[GLYPH_DESIGNER_ERROR]\n    delete obj[GLYPH_DESIGNER_ERROR]\n  }\n\n  for (var k in obj) {\n    if (k === 'face' || k === 'charset') \n      continue\n    else if (k === 'padding' || k === 'spacing')\n      obj[k] = parseIntList(obj[k])\n    else\n      obj[k] = parseInt(obj[k], 10) \n  }\n  return obj\n}\n\nfunction parseIntList(data) {\n  return data.split(',').map(function(val) {\n    return parseInt(val, 10)\n  })\n}","var trim = require('trim')\n  , forEach = require('for-each')\n  , isArray = function(arg) {\n      return Object.prototype.toString.call(arg) === '[object Array]';\n    }\n\nmodule.exports = function (headers) {\n  if (!headers)\n    return {}\n\n  var result = {}\n\n  forEach(\n      trim(headers).split('\\n')\n    , function (row) {\n        var index = row.indexOf(':')\n          , key = trim(row.slice(0, index)).toLowerCase()\n          , value = trim(row.slice(index + 1))\n\n        if (typeof(result[key]) === 'undefined') {\n          result[key] = value\n        } else if (isArray(result[key])) {\n          result[key].push(value)\n        } else {\n          result[key] = [ result[key], value ]\n        }\n      }\n  )\n\n  return result\n}","var performance = global.performance || {};\n\nvar present = (function () {\n  var names = ['now', 'webkitNow', 'msNow', 'mozNow', 'oNow'];\n  while (names.length) {\n    var name = names.shift();\n    if (name in performance) {\n      return performance[name].bind(performance);\n    }\n  }\n\n  var dateNow = Date.now || function () { return new Date().getTime(); };\n  var navigationStart = (performance.timing || {}).navigationStart || dateNow();\n  return function () {\n    return dateNow() - navigationStart;\n  };\n}());\n\npresent.performanceNow = performance.now;\npresent.noConflict = function () {\n  performance.now = present.performanceNow;\n};\npresent.conflict = function () {\n  performance.now = present;\n};\npresent.conflict();\n\nmodule.exports = present;\n","(function(root) {\n\n\t// Store setTimeout reference so promise-polyfill will be unaffected by\n\t// other code modifying setTimeout (like sinon.useFakeTimers())\n\tvar setTimeoutFunc = setTimeout;\n\n\t// Use polyfill for setImmediate for performance gains\n\tvar asap = (typeof setImmediate === 'function' && setImmediate) ||\n\t\tfunction(fn) { setTimeoutFunc(fn, 1); };\n\n\t// Polyfill for Function.prototype.bind\n\tfunction bind(fn, thisArg) {\n\t\treturn function() {\n\t\t\tfn.apply(thisArg, arguments);\n\t\t}\n\t}\n\n\tvar isArray = Array.isArray || function(value) { return Object.prototype.toString.call(value) === \"[object Array]\" };\n\n\tfunction Promise(fn) {\n\t\tif (typeof this !== 'object') throw new TypeError('Promises must be constructed via new');\n\t\tif (typeof fn !== 'function') throw new TypeError('not a function');\n\t\tthis._state = null;\n\t\tthis._value = null;\n\t\tthis._deferreds = []\n\n\t\tdoResolve(fn, bind(resolve, this), bind(reject, this))\n\t}\n\n\tfunction handle(deferred) {\n\t\tvar me = this;\n\t\tif (this._state === null) {\n\t\t\tthis._deferreds.push(deferred);\n\t\t\treturn\n\t\t}\n\t\tasap(function() {\n\t\t\tvar cb = me._state ? deferred.onFulfilled : deferred.onRejected\n\t\t\tif (cb === null) {\n\t\t\t\t(me._state ? deferred.resolve : deferred.reject)(me._value);\n\t\t\t\treturn;\n\t\t\t}\n\t\t\tvar ret;\n\t\t\ttry {\n\t\t\t\tret = cb(me._value);\n\t\t\t}\n\t\t\tcatch (e) {\n\t\t\t\tdeferred.reject(e);\n\t\t\t\treturn;\n\t\t\t}\n\t\t\tdeferred.resolve(ret);\n\t\t})\n\t}\n\n\tfunction resolve(newValue) {\n\t\ttry { //Promise Resolution Procedure: https://github.com/promises-aplus/promises-spec#the-promise-resolution-procedure\n\t\t\tif (newValue === this) throw new TypeError('A promise cannot be resolved with itself.');\n\t\t\tif (newValue && (typeof newValue === 'object' || typeof newValue === 'function')) {\n\t\t\t\tvar then = newValue.then;\n\t\t\t\tif (typeof then === 'function') {\n\t\t\t\t\tdoResolve(bind(then, newValue), bind(resolve, this), bind(reject, this));\n\t\t\t\t\treturn;\n\t\t\t\t}\n\t\t\t}\n\t\t\tthis._state = true;\n\t\t\tthis._value = newValue;\n\t\t\tfinale.call(this);\n\t\t} catch (e) { reject.call(this, e); }\n\t}\n\n\tfunction reject(newValue) {\n\t\tthis._state = false;\n\t\tthis._value = newValue;\n\t\tfinale.call(this);\n\t}\n\n\tfunction finale() {\n\t\tfor (var i = 0, len = this._deferreds.length; i < len; i++) {\n\t\t\thandle.call(this, this._deferreds[i]);\n\t\t}\n\t\tthis._deferreds = null;\n\t}\n\n\tfunction Handler(onFulfilled, onRejected, resolve, reject){\n\t\tthis.onFulfilled = typeof onFulfilled === 'function' ? onFulfilled : null;\n\t\tthis.onRejected = typeof onRejected === 'function' ? onRejected : null;\n\t\tthis.resolve = resolve;\n\t\tthis.reject = reject;\n\t}\n\n\t/**\n\t * Take a potentially misbehaving resolver function and make sure\n\t * onFulfilled and onRejected are only called once.\n\t *\n\t * Makes no guarantees about asynchrony.\n\t */\n\tfunction doResolve(fn, onFulfilled, onRejected) {\n\t\tvar done = false;\n\t\ttry {\n\t\t\tfn(function (value) {\n\t\t\t\tif (done) return;\n\t\t\t\tdone = true;\n\t\t\t\tonFulfilled(value);\n\t\t\t}, function (reason) {\n\t\t\t\tif (done) return;\n\t\t\t\tdone = true;\n\t\t\t\tonRejected(reason);\n\t\t\t})\n\t\t} catch (ex) {\n\t\t\tif (done) return;\n\t\t\tdone = true;\n\t\t\tonRejected(ex);\n\t\t}\n\t}\n\n\tPromise.prototype['catch'] = function (onRejected) {\n\t\treturn this.then(null, onRejected);\n\t};\n\n\tPromise.prototype.then = function(onFulfilled, onRejected) {\n\t\tvar me = this;\n\t\treturn new Promise(function(resolve, reject) {\n\t\t\thandle.call(me, new Handler(onFulfilled, onRejected, resolve, reject));\n\t\t})\n\t};\n\n\tPromise.all = function () {\n\t\tvar args = Array.prototype.slice.call(arguments.length === 1 && isArray(arguments[0]) ? arguments[0] : arguments);\n\n\t\treturn new Promise(function (resolve, reject) {\n\t\t\tif (args.length === 0) return resolve([]);\n\t\t\tvar remaining = args.length;\n\t\t\tfunction res(i, val) {\n\t\t\t\ttry {\n\t\t\t\t\tif (val && (typeof val === 'object' || typeof val === 'function')) {\n\t\t\t\t\t\tvar then = val.then;\n\t\t\t\t\t\tif (typeof then === 'function') {\n\t\t\t\t\t\t\tthen.call(val, function (val) { res(i, val) }, reject);\n\t\t\t\t\t\t\treturn;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\targs[i] = val;\n\t\t\t\t\tif (--remaining === 0) {\n\t\t\t\t\t\tresolve(args);\n\t\t\t\t\t}\n\t\t\t\t} catch (ex) {\n\t\t\t\t\treject(ex);\n\t\t\t\t}\n\t\t\t}\n\t\t\tfor (var i = 0; i < args.length; i++) {\n\t\t\t\tres(i, args[i]);\n\t\t\t}\n\t\t});\n\t};\n\n\tPromise.resolve = function (value) {\n\t\tif (value && typeof value === 'object' && value.constructor === Promise) {\n\t\t\treturn value;\n\t\t}\n\n\t\treturn new Promise(function (resolve) {\n\t\t\tresolve(value);\n\t\t});\n\t};\n\n\tPromise.reject = function (value) {\n\t\treturn new Promise(function (resolve, reject) {\n\t\t\treject(value);\n\t\t});\n\t};\n\n\tPromise.race = function (values) {\n\t\treturn new Promise(function (resolve, reject) {\n\t\t\tfor(var i = 0, len = values.length; i < len; i++) {\n\t\t\t\tvalues[i].then(resolve, reject);\n\t\t\t}\n\t\t});\n\t};\n\n\t/**\n\t * Set the immediate function to execute callbacks\n\t * @param fn {function} Function to execute\n\t * @private\n\t */\n\tPromise._setImmediateFn = function _setImmediateFn(fn) {\n\t\tasap = fn;\n\t};\n\n\tif (typeof module !== 'undefined' && module.exports) {\n\t\tmodule.exports = Promise;\n\t} else if (!root.Promise) {\n\t\troot.Promise = Promise;\n\t}\n\n})(this);\n","var dtype = require('dtype')\nvar anArray = require('an-array')\nvar isBuffer = require('is-buffer')\n\nvar CW = [0, 2, 3]\nvar CCW = [2, 1, 3]\n\nmodule.exports = function createQuadElements(array, opt) {\n    //if user didn't specify an output array\n    if (!array || !(anArray(array) || isBuffer(array))) {\n        opt = array || {}\n        array = null\n    }\n\n    if (typeof opt === 'number') //backwards-compatible\n        opt = { count: opt }\n    else\n        opt = opt || {}\n\n    var type = typeof opt.type === 'string' ? opt.type : 'uint16'\n    var count = typeof opt.count === 'number' ? opt.count : 1\n    var start = (opt.start || 0) \n\n    var dir = opt.clockwise !== false ? CW : CCW,\n        a = dir[0], \n        b = dir[1],\n        c = dir[2]\n\n    var numIndices = count * 6\n\n    var indices = array || new (dtype(type))(numIndices)\n    for (var i = 0, j = 0; i < numIndices; i += 6, j += 4) {\n        var x = i + start\n        indices[x + 0] = j + 0\n        indices[x + 1] = j + 1\n        indices[x + 2] = j + 2\n        indices[x + 3] = j + a\n        indices[x + 4] = j + b\n        indices[x + 5] = j + c\n    }\n    return indices\n}","\n\n/*:: type Attr = { [key: string]: string | number } */\n/*:: type Opts = { preserveNumbers: ?boolean } */\n\n/*\n\nstyle-attr\n====\n\nVery simple parsing and stringifying of style attributes.\n\n`parse`\n----\n\nConvert a style attribute string to an object.\n\n*/\n\n/*:: declare function parse (raw: string, opts: ?Opts): Attr */\nfunction parse(raw, opts) {\n  opts = opts || {};\n\n  var preserveNumbers = opts.preserveNumbers;\n  var trim = function (s) {\n    return s.trim();\n  };\n  var obj = {};\n\n  getKeyValueChunks(raw).map(trim).filter(Boolean).forEach(function (item) {\n    // split with `.indexOf` rather than `.split` because the value may also contain colons.\n    var pos = item.indexOf(':');\n    var key = item.substr(0, pos).trim();\n    var val = item.substr(pos + 1).trim();\n    if (preserveNumbers && isNumeric(val)) {\n      val = Number(val);\n    }\n\n    obj[key] = val;\n  });\n\n  return obj;\n}\n\n/*\n\n`isNumeric`\n----\n\nCheck if a value is numeric.\nVia: https://stackoverflow.com/a/1830844/9324\n\n*/\n\n/*:: declare function isNumeric (n: any): boolean */\n\nfunction isNumeric(n) {\n  return !isNaN(parseFloat(n)) && isFinite(n);\n}\n\n/*\n\n`getKeyValueChunks`\n----\n\nSplit a string into chunks matching `<key>: <value>`\n\n*/\n/*:: declare function getKeyValueChunks (raw: string): Array<string> */\nfunction getKeyValueChunks(raw) {\n  var chunks = [];\n  var offset = 0;\n  var sep = ';';\n  var hasUnclosedUrl = /url\\([^\\)]+$/;\n  var chunk = '';\n  var nextSplit;\n  while (offset < raw.length) {\n    nextSplit = raw.indexOf(sep, offset);\n    if (nextSplit === -1) {\n      nextSplit = raw.length;\n    }\n\n    chunk += raw.substring(offset, nextSplit);\n\n    // data URIs can contain semicolons, so make sure we get the whole thing\n    if (hasUnclosedUrl.test(chunk)) {\n      chunk += ';';\n      offset = nextSplit + 1;\n      continue;\n    }\n\n    chunks.push(chunk);\n    chunk = '';\n    offset = nextSplit + 1;\n  }\n\n  return chunks;\n}\n\n/*\n\n`stringify`\n----\n\nConvert an object into an attribute string\n\n*/\n/*:: declare function stringify (obj: Attr): string */\nfunction stringify(obj) {\n  return Object.keys(obj).map(function (key) {\n    return key + ':' + obj[key];\n  }).join(';');\n}\n\n/*\n\n`normalize`\n----\n\nNormalize an attribute string (eg. collapse duplicates)\n\n*/\n/*:: declare function normalize (str: string, opts: ?Opts): string */\nfunction normalize(str, opts) {\n  return stringify(parse(str, opts));\n}\n\nmodule.exports.parse = parse;\nmodule.exports.stringify = stringify;\nmodule.exports.normalize = normalize;","var createLayout = require('layout-bmfont-text')\nvar inherits = require('inherits')\nvar createIndices = require('quad-indices')\nvar buffer = require('three-buffer-vertex-data')\nvar assign = require('object-assign')\n\nvar vertices = require('./lib/vertices')\nvar utils = require('./lib/utils')\n\nvar Base = THREE.BufferGeometry\n\nmodule.exports = function createTextGeometry (opt) {\n  return new TextGeometry(opt)\n}\n\nfunction TextGeometry (opt) {\n  Base.call(this)\n\n  if (typeof opt === 'string') {\n    opt = { text: opt }\n  }\n\n  // use these as default values for any subsequent\n  // calls to update()\n  this._opt = assign({}, opt)\n\n  // also do an initial setup...\n  if (opt) this.update(opt)\n}\n\ninherits(TextGeometry, Base)\n\nTextGeometry.prototype.update = function (opt) {\n  if (typeof opt === 'string') {\n    opt = { text: opt }\n  }\n\n  // use constructor defaults\n  opt = assign({}, this._opt, opt)\n\n  if (!opt.font) {\n    throw new TypeError('must specify a { font } in options')\n  }\n\n  this.layout = createLayout(opt)\n\n  // get vec2 texcoords\n  var flipY = opt.flipY !== false\n\n  // the desired BMFont data\n  var font = opt.font\n\n  // determine texture size from font file\n  var texWidth = font.common.scaleW\n  var texHeight = font.common.scaleH\n\n  // get visible glyphs\n  var glyphs = this.layout.glyphs.filter(function (glyph) {\n    var bitmap = glyph.data\n    return bitmap.width * bitmap.height > 0\n  })\n\n  // provide visible glyphs for convenience\n  this.visibleGlyphs = glyphs\n\n  // get common vertex data\n  var positions = vertices.positions(glyphs)\n  var uvs = vertices.uvs(glyphs, texWidth, texHeight, flipY)\n  var indices = createIndices({\n    clockwise: true,\n    type: 'uint16',\n    count: glyphs.length\n  })\n\n  // update vertex data\n  buffer.index(this, indices, 1, 'uint16')\n  buffer.attr(this, 'position', positions, 2)\n  buffer.attr(this, 'uv', uvs, 2)\n\n  // update multipage data\n  if (!opt.multipage && 'page' in this.attributes) {\n    // disable multipage rendering\n    this.removeAttribute('page')\n  } else if (opt.multipage) {\n    var pages = vertices.pages(glyphs)\n    // enable multipage rendering\n    buffer.attr(this, 'page', pages, 1)\n  }\n}\n\nTextGeometry.prototype.computeBoundingSphere = function () {\n  if (this.boundingSphere === null) {\n    this.boundingSphere = new THREE.Sphere()\n  }\n\n  var positions = this.attributes.position.array\n  var itemSize = this.attributes.position.itemSize\n  if (!positions || !itemSize || positions.length < 2) {\n    this.boundingSphere.radius = 0\n    this.boundingSphere.center.set(0, 0, 0)\n    return\n  }\n  utils.computeSphere(positions, this.boundingSphere)\n  if (isNaN(this.boundingSphere.radius)) {\n    console.error('THREE.BufferGeometry.computeBoundingSphere(): ' +\n      'Computed radius is NaN. The ' +\n      '\"position\" attribute is likely to have NaN values.')\n  }\n}\n\nTextGeometry.prototype.computeBoundingBox = function () {\n  if (this.boundingBox === null) {\n    this.boundingBox = new THREE.Box3()\n  }\n\n  var bbox = this.boundingBox\n  var positions = this.attributes.position.array\n  var itemSize = this.attributes.position.itemSize\n  if (!positions || !itemSize || positions.length < 2) {\n    bbox.makeEmpty()\n    return\n  }\n  utils.computeBox(positions, bbox)\n}\n","var itemSize = 2\nvar box = { min: [0, 0], max: [0, 0] }\n\nfunction bounds (positions) {\n  var count = positions.length / itemSize\n  box.min[0] = positions[0]\n  box.min[1] = positions[1]\n  box.max[0] = positions[0]\n  box.max[1] = positions[1]\n\n  for (var i = 0; i < count; i++) {\n    var x = positions[i * itemSize + 0]\n    var y = positions[i * itemSize + 1]\n    box.min[0] = Math.min(x, box.min[0])\n    box.min[1] = Math.min(y, box.min[1])\n    box.max[0] = Math.max(x, box.max[0])\n    box.max[1] = Math.max(y, box.max[1])\n  }\n}\n\nmodule.exports.computeBox = function (positions, output) {\n  bounds(positions)\n  output.min.set(box.min[0], box.min[1], 0)\n  output.max.set(box.max[0], box.max[1], 0)\n}\n\nmodule.exports.computeSphere = function (positions, output) {\n  bounds(positions)\n  var minX = box.min[0]\n  var minY = box.min[1]\n  var maxX = box.max[0]\n  var maxY = box.max[1]\n  var width = maxX - minX\n  var height = maxY - minY\n  var length = Math.sqrt(width * width + height * height)\n  output.center.set(minX + width / 2, minY + height / 2, 0)\n  output.radius = length / 2\n}\n","module.exports.pages = function pages (glyphs) {\n  var pages = new Float32Array(glyphs.length * 4 * 1)\n  var i = 0\n  glyphs.forEach(function (glyph) {\n    var id = glyph.data.page || 0\n    pages[i++] = id\n    pages[i++] = id\n    pages[i++] = id\n    pages[i++] = id\n  })\n  return pages\n}\n\nmodule.exports.uvs = function uvs (glyphs, texWidth, texHeight, flipY) {\n  var uvs = new Float32Array(glyphs.length * 4 * 2)\n  var i = 0\n  glyphs.forEach(function (glyph) {\n    var bitmap = glyph.data\n    var bw = (bitmap.x + bitmap.width)\n    var bh = (bitmap.y + bitmap.height)\n\n    // top left position\n    var u0 = bitmap.x / texWidth\n    var v1 = bitmap.y / texHeight\n    var u1 = bw / texWidth\n    var v0 = bh / texHeight\n\n    if (flipY) {\n      v1 = (texHeight - bitmap.y) / texHeight\n      v0 = (texHeight - bh) / texHeight\n    }\n\n    // BL\n    uvs[i++] = u0\n    uvs[i++] = v1\n    // TL\n    uvs[i++] = u0\n    uvs[i++] = v0\n    // TR\n    uvs[i++] = u1\n    uvs[i++] = v0\n    // BR\n    uvs[i++] = u1\n    uvs[i++] = v1\n  })\n  return uvs\n}\n\nmodule.exports.positions = function positions (glyphs) {\n  var positions = new Float32Array(glyphs.length * 4 * 2)\n  var i = 0\n  glyphs.forEach(function (glyph) {\n    var bitmap = glyph.data\n\n    // bottom left position\n    var x = glyph.position[0] + bitmap.xoffset\n    var y = glyph.position[1] + bitmap.yoffset\n\n    // quad size\n    var w = bitmap.width\n    var h = bitmap.height\n\n    // BL\n    positions[i++] = x\n    positions[i++] = y\n    // TL\n    positions[i++] = x\n    positions[i++] = y + h\n    // TR\n    positions[i++] = x + w\n    positions[i++] = y + h\n    // BR\n    positions[i++] = x + w\n    positions[i++] = y\n  })\n  return positions\n}\n","var flatten = require('flatten-vertex-data')\nvar warned = false;\n\nmodule.exports.attr = setAttribute\nmodule.exports.index = setIndex\n\nfunction setIndex (geometry, data, itemSize, dtype) {\n  if (typeof itemSize !== 'number') itemSize = 1\n  if (typeof dtype !== 'string') dtype = 'uint16'\n\n  var isR69 = !geometry.index && typeof geometry.setIndex !== 'function'\n  var attrib = isR69 ? geometry.getAttribute('index') : geometry.index\n  var newAttrib = updateAttribute(attrib, data, itemSize, dtype)\n  if (newAttrib) {\n    if (isR69) geometry.addAttribute('index', newAttrib)\n    else geometry.index = newAttrib\n  }\n}\n\nfunction setAttribute (geometry, key, data, itemSize, dtype) {\n  if (typeof itemSize !== 'number') itemSize = 3\n  if (typeof dtype !== 'string') dtype = 'float32'\n  if (Array.isArray(data) &&\n    Array.isArray(data[0]) &&\n    data[0].length !== itemSize) {\n    throw new Error('Nested vertex array has unexpected size; expected ' +\n      itemSize + ' but found ' + data[0].length)\n  }\n\n  var attrib = geometry.getAttribute(key)\n  var newAttrib = updateAttribute(attrib, data, itemSize, dtype)\n  if (newAttrib) {\n    geometry.addAttribute(key, newAttrib)\n  }\n}\n\nfunction updateAttribute (attrib, data, itemSize, dtype) {\n  data = data || []\n  if (!attrib || rebuildAttribute(attrib, data, itemSize)) {\n    // create a new array with desired type\n    data = flatten(data, dtype)\n\n    var needsNewBuffer = attrib && typeof attrib.setArray !== 'function'\n    if (!attrib || needsNewBuffer) {\n      // We are on an old version of ThreeJS which can't\n      // support growing / shrinking buffers, so we need\n      // to build a new buffer\n      if (needsNewBuffer && !warned) {\n        warned = true\n        console.warn([\n          'A WebGL buffer is being updated with a new size or itemSize, ',\n          'however this version of ThreeJS only supports fixed-size buffers.',\n          '\\nThe old buffer may still be kept in memory.\\n',\n          'To avoid memory leaks, it is recommended that you dispose ',\n          'your geometries and create new ones, or update to ThreeJS r82 or newer.\\n',\n          'See here for discussion:\\n',\n          'https://github.com/mrdoob/three.js/pull/9631'\n        ].join(''))\n      }\n\n      // Build a new attribute\n      attrib = new THREE.BufferAttribute(data, itemSize);\n    }\n\n    attrib.itemSize = itemSize\n    attrib.needsUpdate = true\n\n    // New versions of ThreeJS suggest using setArray\n    // to change the data. It will use bufferData internally,\n    // so you can change the array size without any issues\n    if (typeof attrib.setArray === 'function') {\n      attrib.setArray(data)\n    }\n\n    return attrib\n  } else {\n    // copy data into the existing array\n    flatten(data, attrib.array)\n    attrib.needsUpdate = true\n    return null\n  }\n}\n\n// Test whether the attribute needs to be re-created,\n// returns false if we can re-use it as-is.\nfunction rebuildAttribute (attrib, data, itemSize) {\n  if (attrib.itemSize !== itemSize) return true\n  if (!attrib.array) return true\n  var attribLength = attrib.array.length\n  if (Array.isArray(data) && Array.isArray(data[0])) {\n    // [ [ x, y, z ] ]\n    return attribLength !== data.length * itemSize\n  } else {\n    // [ x, y, z ]\n    return attribLength !== data.length\n  }\n  return false\n}\n","\nexports = module.exports = trim;\n\nfunction trim(str){\n  return str.replace(/^\\s*|\\s*$/g, '');\n}\n\nexports.left = function(str){\n  return str.replace(/^\\s*/, '');\n};\n\nexports.right = function(str){\n  return str.replace(/\\s*$/, '');\n};\n","/*\n * Copyright 2015 Google Inc. All Rights Reserved.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nvar Util = require('./util.js');\nvar WakeLock = require('./wakelock.js');\n\n// Start at a higher number to reduce chance of conflict.\nvar nextDisplayId = 1000;\nvar hasShowDeprecationWarning = false;\n\nvar defaultLeftBounds = [0, 0, 0.5, 1];\nvar defaultRightBounds = [0.5, 0, 0.5, 1];\n\n/**\n * The base class for all VR frame data.\n */\n\nfunction VRFrameData() {\n  this.leftProjectionMatrix = new Float32Array(16);\n  this.leftViewMatrix = new Float32Array(16);\n  this.rightProjectionMatrix = new Float32Array(16);\n  this.rightViewMatrix = new Float32Array(16);\n  this.pose = null;\n};\n\n/**\n * The base class for all VR displays.\n */\nfunction VRDisplay() {\n  this.isPolyfilled = true;\n  this.displayId = nextDisplayId++;\n  this.displayName = 'webvr-polyfill displayName';\n\n  this.depthNear = 0.01;\n  this.depthFar = 10000.0;\n\n  this.isConnected = true;\n  this.isPresenting = false;\n  this.capabilities = {\n    hasPosition: false,\n    hasOrientation: false,\n    hasExternalDisplay: false,\n    canPresent: false,\n    maxLayers: 1\n  };\n  this.stageParameters = null;\n\n  // \"Private\" members.\n  this.waitingForPresent_ = false;\n  this.layer_ = null;\n\n  this.fullscreenElement_ = null;\n  this.fullscreenWrapper_ = null;\n  this.fullscreenElementCachedStyle_ = null;\n\n  this.fullscreenEventTarget_ = null;\n  this.fullscreenChangeHandler_ = null;\n  this.fullscreenErrorHandler_ = null;\n\n  this.wakelock_ = new WakeLock();\n}\n\nVRDisplay.prototype.getFrameData = function(frameData) {\n  // TODO: Technically this should retain it's value for the duration of a frame\n  // but I doubt that's practical to do in javascript.\n  return Util.frameDataFromPose(frameData, this.getPose(), this);\n};\n\nVRDisplay.prototype.getPose = function() {\n  // TODO: Technically this should retain it's value for the duration of a frame\n  // but I doubt that's practical to do in javascript.\n  return this.getImmediatePose();\n};\n\nVRDisplay.prototype.requestAnimationFrame = function(callback) {\n  return window.requestAnimationFrame(callback);\n};\n\nVRDisplay.prototype.cancelAnimationFrame = function(id) {\n  return window.cancelAnimationFrame(id);\n};\n\nVRDisplay.prototype.wrapForFullscreen = function(element) {\n  // Don't wrap in iOS.\n  if (Util.isIOS()) {\n    return element;\n  }\n  if (!this.fullscreenWrapper_) {\n    this.fullscreenWrapper_ = document.createElement('div');\n    var cssProperties = [\n      'height: ' + Math.min(screen.height, screen.width) + 'px !important',\n      'top: 0 !important',\n      'left: 0 !important',\n      'right: 0 !important',\n      'border: 0',\n      'margin: 0',\n      'padding: 0',\n      'z-index: 999999 !important',\n      'position: fixed',\n    ];\n    this.fullscreenWrapper_.setAttribute('style', cssProperties.join('; ') + ';');\n    this.fullscreenWrapper_.classList.add('webvr-polyfill-fullscreen-wrapper');\n  }\n\n  if (this.fullscreenElement_ == element) {\n    return this.fullscreenWrapper_;\n  }\n\n  // Remove any previously applied wrappers\n  this.removeFullscreenWrapper();\n\n  this.fullscreenElement_ = element;\n  var parent = this.fullscreenElement_.parentElement;\n  parent.insertBefore(this.fullscreenWrapper_, this.fullscreenElement_);\n  parent.removeChild(this.fullscreenElement_);\n  this.fullscreenWrapper_.insertBefore(this.fullscreenElement_, this.fullscreenWrapper_.firstChild);\n  this.fullscreenElementCachedStyle_ = this.fullscreenElement_.getAttribute('style');\n\n  var self = this;\n  function applyFullscreenElementStyle() {\n    if (!self.fullscreenElement_) {\n      return;\n    }\n\n    var cssProperties = [\n      'position: absolute',\n      'top: 0',\n      'left: 0',\n      'width: ' + Math.max(screen.width, screen.height) + 'px',\n      'height: ' + Math.min(screen.height, screen.width) + 'px',\n      'border: 0',\n      'margin: 0',\n      'padding: 0',\n    ];\n    self.fullscreenElement_.setAttribute('style', cssProperties.join('; ') + ';');\n  }\n\n  applyFullscreenElementStyle();\n\n  return this.fullscreenWrapper_;\n};\n\nVRDisplay.prototype.removeFullscreenWrapper = function() {\n  if (!this.fullscreenElement_) {\n    return;\n  }\n\n  var element = this.fullscreenElement_;\n  if (this.fullscreenElementCachedStyle_) {\n    element.setAttribute('style', this.fullscreenElementCachedStyle_);\n  } else {\n    element.removeAttribute('style');\n  }\n  this.fullscreenElement_ = null;\n  this.fullscreenElementCachedStyle_ = null;\n\n  var parent = this.fullscreenWrapper_.parentElement;\n  this.fullscreenWrapper_.removeChild(element);\n  parent.insertBefore(element, this.fullscreenWrapper_);\n  parent.removeChild(this.fullscreenWrapper_);\n\n  return element;\n};\n\nVRDisplay.prototype.requestPresent = function(layers) {\n  var wasPresenting = this.isPresenting;\n  var self = this;\n\n  if (!(layers instanceof Array)) {\n    if (!hasShowDeprecationWarning) {\n      console.warn(\"Using a deprecated form of requestPresent. Should pass in an array of VRLayers.\");\n      hasShowDeprecationWarning = true;\n    }\n    layers = [layers];\n  }\n\n  return new Promise(function(resolve, reject) {\n    if (!self.capabilities.canPresent) {\n      reject(new Error('VRDisplay is not capable of presenting.'));\n      return;\n    }\n\n    if (layers.length == 0 || layers.length > self.capabilities.maxLayers) {\n      reject(new Error('Invalid number of layers.'));\n      return;\n    }\n\n    var incomingLayer = layers[0];\n    if (!incomingLayer.source) {\n      /*\n      todo: figure out the correct behavior if the source is not provided.\n      see https://github.com/w3c/webvr/issues/58\n      */\n      resolve();\n      return;\n    }\n\n    var leftBounds = incomingLayer.leftBounds || defaultLeftBounds;\n    var rightBounds = incomingLayer.rightBounds || defaultRightBounds;\n    if (wasPresenting) {\n      // Already presenting, just changing configuration\n      var layer = self.layer_;\n      if (layer.source !== incomingLayer.source) {\n        layer.source = incomingLayer.source;\n      }\n\n      for (var i = 0; i < 4; i++) {\n        layer.leftBounds[i] = leftBounds[i];\n        layer.rightBounds[i] = rightBounds[i];\n      }\n\n      resolve();\n      return;\n    }\n\n    // Was not already presenting.\n    self.layer_ = {\n      predistorted: incomingLayer.predistorted,\n      source: incomingLayer.source,\n      leftBounds: leftBounds.slice(0),\n      rightBounds: rightBounds.slice(0)\n    };\n\n    self.waitingForPresent_ = false;\n    if (self.layer_ && self.layer_.source) {\n      var fullscreenElement = self.wrapForFullscreen(self.layer_.source);\n\n      var onFullscreenChange = function() {\n        var actualFullscreenElement = Util.getFullscreenElement();\n\n        self.isPresenting = (fullscreenElement === actualFullscreenElement);\n        if (self.isPresenting) {\n          if (screen.orientation && screen.orientation.lock) {\n            screen.orientation.lock('landscape-primary').catch(function(error){\n                    console.error('screen.orientation.lock() failed due to', error.message)\n            });\n          }\n          self.waitingForPresent_ = false;\n          self.beginPresent_();\n          resolve();\n        } else {\n          if (screen.orientation && screen.orientation.unlock) {\n            screen.orientation.unlock();\n          }\n          self.removeFullscreenWrapper();\n          self.wakelock_.release();\n          self.endPresent_();\n          self.removeFullscreenListeners_();\n        }\n        self.fireVRDisplayPresentChange_();\n      }\n      var onFullscreenError = function() {\n        if (!self.waitingForPresent_) {\n          return;\n        }\n\n        self.removeFullscreenWrapper();\n        self.removeFullscreenListeners_();\n\n        self.wakelock_.release();\n        self.waitingForPresent_ = false;\n        self.isPresenting = false;\n\n        reject(new Error('Unable to present.'));\n      }\n\n      self.addFullscreenListeners_(fullscreenElement,\n          onFullscreenChange, onFullscreenError);\n\n      if (Util.requestFullscreen(fullscreenElement)) {\n        self.wakelock_.request();\n        self.waitingForPresent_ = true;\n      } else if (Util.isIOS() || Util.isWebViewAndroid()) {\n        // *sigh* Just fake it.\n        self.wakelock_.request();\n        self.isPresenting = true;\n        self.beginPresent_();\n        self.fireVRDisplayPresentChange_();\n        resolve();\n      }\n    }\n\n    if (!self.waitingForPresent_ && !Util.isIOS()) {\n      Util.exitFullscreen();\n      reject(new Error('Unable to present.'));\n    }\n  });\n};\n\nVRDisplay.prototype.exitPresent = function() {\n  var wasPresenting = this.isPresenting;\n  var self = this;\n  this.isPresenting = false;\n  this.layer_ = null;\n  this.wakelock_.release();\n\n  return new Promise(function(resolve, reject) {\n    if (wasPresenting) {\n      if (!Util.exitFullscreen() && Util.isIOS()) {\n        self.endPresent_();\n        self.fireVRDisplayPresentChange_();\n      }\n\n      if (Util.isWebViewAndroid()) {\n        self.removeFullscreenWrapper();\n        self.removeFullscreenListeners_();\n        self.endPresent_();\n        self.fireVRDisplayPresentChange_();\n      }\n\n      resolve();\n    } else {\n      reject(new Error('Was not presenting to VRDisplay.'));\n    }\n  });\n};\n\nVRDisplay.prototype.getLayers = function() {\n  if (this.layer_) {\n    return [this.layer_];\n  }\n  return [];\n};\n\nVRDisplay.prototype.fireVRDisplayPresentChange_ = function() {\n  // Important: unfortunately we cannot have full spec compliance here.\n  // CustomEvent custom fields all go under e.detail (so the VRDisplay ends up\n  // being e.detail.display, instead of e.display as per WebVR spec).\n  var event = new CustomEvent('vrdisplaypresentchange', {detail: {display: this}});\n  window.dispatchEvent(event);\n};\n\nVRDisplay.prototype.fireVRDisplayConnect_ = function() {\n  // Important: unfortunately we cannot have full spec compliance here.\n  // CustomEvent custom fields all go under e.detail (so the VRDisplay ends up\n  // being e.detail.display, instead of e.display as per WebVR spec).\n  var event = new CustomEvent('vrdisplayconnect', {detail: {display: this}});\n  window.dispatchEvent(event);\n};\n\nVRDisplay.prototype.addFullscreenListeners_ = function(element, changeHandler, errorHandler) {\n  this.removeFullscreenListeners_();\n\n  this.fullscreenEventTarget_ = element;\n  this.fullscreenChangeHandler_ = changeHandler;\n  this.fullscreenErrorHandler_ = errorHandler;\n\n  if (changeHandler) {\n    if (document.fullscreenEnabled) {\n      element.addEventListener('fullscreenchange', changeHandler, false);\n    } else if (document.webkitFullscreenEnabled) {\n      element.addEventListener('webkitfullscreenchange', changeHandler, false);\n    } else if (document.mozFullScreenEnabled) {\n      document.addEventListener('mozfullscreenchange', changeHandler, false);\n    } else if (document.msFullscreenEnabled) {\n      element.addEventListener('msfullscreenchange', changeHandler, false);\n    }\n  }\n\n  if (errorHandler) {\n    if (document.fullscreenEnabled) {\n      element.addEventListener('fullscreenerror', errorHandler, false);\n    } else if (document.webkitFullscreenEnabled) {\n      element.addEventListener('webkitfullscreenerror', errorHandler, false);\n    } else if (document.mozFullScreenEnabled) {\n      document.addEventListener('mozfullscreenerror', errorHandler, false);\n    } else if (document.msFullscreenEnabled) {\n      element.addEventListener('msfullscreenerror', errorHandler, false);\n    }\n  }\n};\n\nVRDisplay.prototype.removeFullscreenListeners_ = function() {\n  if (!this.fullscreenEventTarget_)\n    return;\n\n  var element = this.fullscreenEventTarget_;\n\n  if (this.fullscreenChangeHandler_) {\n    var changeHandler = this.fullscreenChangeHandler_;\n    element.removeEventListener('fullscreenchange', changeHandler, false);\n    element.removeEventListener('webkitfullscreenchange', changeHandler, false);\n    document.removeEventListener('mozfullscreenchange', changeHandler, false);\n    element.removeEventListener('msfullscreenchange', changeHandler, false);\n  }\n\n  if (this.fullscreenErrorHandler_) {\n    var errorHandler = this.fullscreenErrorHandler_;\n    element.removeEventListener('fullscreenerror', errorHandler, false);\n    element.removeEventListener('webkitfullscreenerror', errorHandler, false);\n    document.removeEventListener('mozfullscreenerror', errorHandler, false);\n    element.removeEventListener('msfullscreenerror', errorHandler, false);\n  }\n\n  this.fullscreenEventTarget_ = null;\n  this.fullscreenChangeHandler_ = null;\n  this.fullscreenErrorHandler_ = null;\n};\n\nVRDisplay.prototype.beginPresent_ = function() {\n  // Override to add custom behavior when presentation begins.\n};\n\nVRDisplay.prototype.endPresent_ = function() {\n  // Override to add custom behavior when presentation ends.\n};\n\nVRDisplay.prototype.submitFrame = function(pose) {\n  // Override to add custom behavior for frame submission.\n};\n\nVRDisplay.prototype.getEyeParameters = function(whichEye) {\n  // Override to return accurate eye parameters if canPresent is true.\n  return null;\n};\n\n/*\n * Deprecated classes\n */\n\n/**\n * The base class for all VR devices. (Deprecated)\n */\nfunction VRDevice() {\n  this.isPolyfilled = true;\n  this.hardwareUnitId = 'webvr-polyfill hardwareUnitId';\n  this.deviceId = 'webvr-polyfill deviceId';\n  this.deviceName = 'webvr-polyfill deviceName';\n}\n\n/**\n * The base class for all VR HMD devices. (Deprecated)\n */\nfunction HMDVRDevice() {\n}\nHMDVRDevice.prototype = new VRDevice();\n\n/**\n * The base class for all VR position sensor devices. (Deprecated)\n */\nfunction PositionSensorVRDevice() {\n}\nPositionSensorVRDevice.prototype = new VRDevice();\n\nmodule.exports.VRFrameData = VRFrameData;\nmodule.exports.VRDisplay = VRDisplay;\nmodule.exports.VRDevice = VRDevice;\nmodule.exports.HMDVRDevice = HMDVRDevice;\nmodule.exports.PositionSensorVRDevice = PositionSensorVRDevice;\n","/*\n * Copyright 2016 Google Inc. All Rights Reserved.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nvar CardboardUI = require('./cardboard-ui.js');\nvar Util = require('./util.js');\nvar WGLUPreserveGLState = require('./deps/wglu-preserve-state.js');\n\nvar distortionVS = [\n  'attribute vec2 position;',\n  'attribute vec3 texCoord;',\n\n  'varying vec2 vTexCoord;',\n\n  'uniform vec4 viewportOffsetScale[2];',\n\n  'void main() {',\n  '  vec4 viewport = viewportOffsetScale[int(texCoord.z)];',\n  '  vTexCoord = (texCoord.xy * viewport.zw) + viewport.xy;',\n  '  gl_Position = vec4( position, 1.0, 1.0 );',\n  '}',\n].join('\\n');\n\nvar distortionFS = [\n  'precision mediump float;',\n  'uniform sampler2D diffuse;',\n\n  'varying vec2 vTexCoord;',\n\n  'void main() {',\n  '  gl_FragColor = texture2D(diffuse, vTexCoord);',\n  '}',\n].join('\\n');\n\n/**\n * A mesh-based distorter.\n */\nfunction CardboardDistorter(gl) {\n  this.gl = gl;\n  this.ctxAttribs = gl.getContextAttributes();\n\n  this.meshWidth = 20;\n  this.meshHeight = 20;\n\n  this.bufferScale = window.WebVRConfig.BUFFER_SCALE;\n\n  this.bufferWidth = gl.drawingBufferWidth;\n  this.bufferHeight = gl.drawingBufferHeight;\n\n  // Patching support\n  this.realBindFramebuffer = gl.bindFramebuffer;\n  this.realEnable = gl.enable;\n  this.realDisable = gl.disable;\n  this.realColorMask = gl.colorMask;\n  this.realClearColor = gl.clearColor;\n  this.realViewport = gl.viewport;\n\n  if (!Util.isIOS()) {\n    this.realCanvasWidth = Object.getOwnPropertyDescriptor(gl.canvas.__proto__, 'width');\n    this.realCanvasHeight = Object.getOwnPropertyDescriptor(gl.canvas.__proto__, 'height');\n  }\n\n  this.isPatched = false;\n\n  // State tracking\n  this.lastBoundFramebuffer = null;\n  this.cullFace = false;\n  this.depthTest = false;\n  this.blend = false;\n  this.scissorTest = false;\n  this.stencilTest = false;\n  this.viewport = [0, 0, 0, 0];\n  this.colorMask = [true, true, true, true];\n  this.clearColor = [0, 0, 0, 0];\n\n  this.attribs = {\n    position: 0,\n    texCoord: 1\n  };\n  this.program = Util.linkProgram(gl, distortionVS, distortionFS, this.attribs);\n  this.uniforms = Util.getProgramUniforms(gl, this.program);\n\n  this.viewportOffsetScale = new Float32Array(8);\n  this.setTextureBounds();\n\n  this.vertexBuffer = gl.createBuffer();\n  this.indexBuffer = gl.createBuffer();\n  this.indexCount = 0;\n\n  this.renderTarget = gl.createTexture();\n  this.framebuffer = gl.createFramebuffer();\n\n  this.depthStencilBuffer = null;\n  this.depthBuffer = null;\n  this.stencilBuffer = null;\n\n  if (this.ctxAttribs.depth && this.ctxAttribs.stencil) {\n    this.depthStencilBuffer = gl.createRenderbuffer();\n  } else if (this.ctxAttribs.depth) {\n    this.depthBuffer = gl.createRenderbuffer();\n  } else if (this.ctxAttribs.stencil) {\n    this.stencilBuffer = gl.createRenderbuffer();\n  }\n\n  this.patch();\n\n  this.onResize();\n\n  if (!window.WebVRConfig.CARDBOARD_UI_DISABLED) {\n    this.cardboardUI = new CardboardUI(gl);\n  }\n};\n\n/**\n * Tears down all the resources created by the distorter and removes any\n * patches.\n */\nCardboardDistorter.prototype.destroy = function() {\n  var gl = this.gl;\n\n  this.unpatch();\n\n  gl.deleteProgram(this.program);\n  gl.deleteBuffer(this.vertexBuffer);\n  gl.deleteBuffer(this.indexBuffer);\n  gl.deleteTexture(this.renderTarget);\n  gl.deleteFramebuffer(this.framebuffer);\n  if (this.depthStencilBuffer) {\n    gl.deleteRenderbuffer(this.depthStencilBuffer);\n  }\n  if (this.depthBuffer) {\n    gl.deleteRenderbuffer(this.depthBuffer);\n  }\n  if (this.stencilBuffer) {\n    gl.deleteRenderbuffer(this.stencilBuffer);\n  }\n\n  if (this.cardboardUI) {\n    this.cardboardUI.destroy();\n  }\n};\n\n\n/**\n * Resizes the backbuffer to match the canvas width and height.\n */\nCardboardDistorter.prototype.onResize = function() {\n  var gl = this.gl;\n  var self = this;\n\n  var glState = [\n    gl.RENDERBUFFER_BINDING,\n    gl.TEXTURE_BINDING_2D, gl.TEXTURE0\n  ];\n\n  WGLUPreserveGLState(gl, glState, function(gl) {\n    // Bind real backbuffer and clear it once. We don't need to clear it again\n    // after that because we're overwriting the same area every frame.\n    self.realBindFramebuffer.call(gl, gl.FRAMEBUFFER, null);\n\n    // Put things in a good state\n    if (self.scissorTest) { self.realDisable.call(gl, gl.SCISSOR_TEST); }\n    self.realColorMask.call(gl, true, true, true, true);\n    self.realViewport.call(gl, 0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);\n    self.realClearColor.call(gl, 0, 0, 0, 1);\n\n    gl.clear(gl.COLOR_BUFFER_BIT);\n\n    // Now bind and resize the fake backbuffer\n    self.realBindFramebuffer.call(gl, gl.FRAMEBUFFER, self.framebuffer);\n\n    gl.bindTexture(gl.TEXTURE_2D, self.renderTarget);\n    gl.texImage2D(gl.TEXTURE_2D, 0, self.ctxAttribs.alpha ? gl.RGBA : gl.RGB,\n        self.bufferWidth, self.bufferHeight, 0,\n        self.ctxAttribs.alpha ? gl.RGBA : gl.RGB, gl.UNSIGNED_BYTE, null);\n    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);\n    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);\n    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);\n    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);\n    gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, self.renderTarget, 0);\n\n    if (self.ctxAttribs.depth && self.ctxAttribs.stencil) {\n      gl.bindRenderbuffer(gl.RENDERBUFFER, self.depthStencilBuffer);\n      gl.renderbufferStorage(gl.RENDERBUFFER, gl.DEPTH_STENCIL,\n          self.bufferWidth, self.bufferHeight);\n      gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.DEPTH_STENCIL_ATTACHMENT,\n          gl.RENDERBUFFER, self.depthStencilBuffer);\n    } else if (self.ctxAttribs.depth) {\n      gl.bindRenderbuffer(gl.RENDERBUFFER, self.depthBuffer);\n      gl.renderbufferStorage(gl.RENDERBUFFER, gl.DEPTH_COMPONENT16,\n          self.bufferWidth, self.bufferHeight);\n      gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.DEPTH_ATTACHMENT,\n          gl.RENDERBUFFER, self.depthBuffer);\n    } else if (self.ctxAttribs.stencil) {\n      gl.bindRenderbuffer(gl.RENDERBUFFER, self.stencilBuffer);\n      gl.renderbufferStorage(gl.RENDERBUFFER, gl.STENCIL_INDEX8,\n          self.bufferWidth, self.bufferHeight);\n      gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.STENCIL_ATTACHMENT,\n          gl.RENDERBUFFER, self.stencilBuffer);\n    }\n\n    if (!gl.checkFramebufferStatus(gl.FRAMEBUFFER) === gl.FRAMEBUFFER_COMPLETE) {\n      console.error('Framebuffer incomplete!');\n    }\n\n    self.realBindFramebuffer.call(gl, gl.FRAMEBUFFER, self.lastBoundFramebuffer);\n\n    if (self.scissorTest) { self.realEnable.call(gl, gl.SCISSOR_TEST); }\n\n    self.realColorMask.apply(gl, self.colorMask);\n    self.realViewport.apply(gl, self.viewport);\n    self.realClearColor.apply(gl, self.clearColor);\n  });\n\n  if (this.cardboardUI) {\n    this.cardboardUI.onResize();\n  }\n};\n\nCardboardDistorter.prototype.patch = function() {\n  if (this.isPatched) {\n    return;\n  }\n\n  var self = this;\n  var canvas = this.gl.canvas;\n  var gl = this.gl;\n\n  if (!Util.isIOS()) {\n    canvas.width = Util.getScreenWidth() * this.bufferScale;\n    canvas.height = Util.getScreenHeight() * this.bufferScale;\n\n    Object.defineProperty(canvas, 'width', {\n      configurable: true,\n      enumerable: true,\n      get: function() {\n        return self.bufferWidth;\n      },\n      set: function(value) {\n        self.bufferWidth = value;\n        self.realCanvasWidth.set.call(canvas, value);\n        self.onResize();\n      }\n    });\n\n    Object.defineProperty(canvas, 'height', {\n      configurable: true,\n      enumerable: true,\n      get: function() {\n        return self.bufferHeight;\n      },\n      set: function(value) {\n        self.bufferHeight = value;\n        self.realCanvasHeight.set.call(canvas, value);\n        self.onResize();\n      }\n    });\n  }\n\n  this.lastBoundFramebuffer = gl.getParameter(gl.FRAMEBUFFER_BINDING);\n\n  if (this.lastBoundFramebuffer == null) {\n    this.lastBoundFramebuffer = this.framebuffer;\n    this.gl.bindFramebuffer(gl.FRAMEBUFFER, this.framebuffer);\n  }\n\n  this.gl.bindFramebuffer = function(target, framebuffer) {\n    self.lastBoundFramebuffer = framebuffer ? framebuffer : self.framebuffer;\n    // Silently make calls to bind the default framebuffer bind ours instead.\n    self.realBindFramebuffer.call(gl, target, self.lastBoundFramebuffer);\n  };\n\n  this.cullFace = gl.getParameter(gl.CULL_FACE);\n  this.depthTest = gl.getParameter(gl.DEPTH_TEST);\n  this.blend = gl.getParameter(gl.BLEND);\n  this.scissorTest = gl.getParameter(gl.SCISSOR_TEST);\n  this.stencilTest = gl.getParameter(gl.STENCIL_TEST);\n\n  gl.enable = function(pname) {\n    switch (pname) {\n      case gl.CULL_FACE: self.cullFace = true; break;\n      case gl.DEPTH_TEST: self.depthTest = true; break;\n      case gl.BLEND: self.blend = true; break;\n      case gl.SCISSOR_TEST: self.scissorTest = true; break;\n      case gl.STENCIL_TEST: self.stencilTest = true; break;\n    }\n    self.realEnable.call(gl, pname);\n  };\n\n  gl.disable = function(pname) {\n    switch (pname) {\n      case gl.CULL_FACE: self.cullFace = false; break;\n      case gl.DEPTH_TEST: self.depthTest = false; break;\n      case gl.BLEND: self.blend = false; break;\n      case gl.SCISSOR_TEST: self.scissorTest = false; break;\n      case gl.STENCIL_TEST: self.stencilTest = false; break;\n    }\n    self.realDisable.call(gl, pname);\n  };\n\n  this.colorMask = gl.getParameter(gl.COLOR_WRITEMASK);\n  gl.colorMask = function(r, g, b, a) {\n    self.colorMask[0] = r;\n    self.colorMask[1] = g;\n    self.colorMask[2] = b;\n    self.colorMask[3] = a;\n    self.realColorMask.call(gl, r, g, b, a);\n  };\n\n  this.clearColor = gl.getParameter(gl.COLOR_CLEAR_VALUE);\n  gl.clearColor = function(r, g, b, a) {\n    self.clearColor[0] = r;\n    self.clearColor[1] = g;\n    self.clearColor[2] = b;\n    self.clearColor[3] = a;\n    self.realClearColor.call(gl, r, g, b, a);\n  };\n\n  this.viewport = gl.getParameter(gl.VIEWPORT);\n  gl.viewport = function(x, y, w, h) {\n    self.viewport[0] = x;\n    self.viewport[1] = y;\n    self.viewport[2] = w;\n    self.viewport[3] = h;\n    self.realViewport.call(gl, x, y, w, h);\n  };\n\n  this.isPatched = true;\n  Util.safariCssSizeWorkaround(canvas);\n};\n\nCardboardDistorter.prototype.unpatch = function() {\n  if (!this.isPatched) {\n    return;\n  }\n\n  var gl = this.gl;\n  var canvas = this.gl.canvas;\n\n  if (!Util.isIOS()) {\n    Object.defineProperty(canvas, 'width', this.realCanvasWidth);\n    Object.defineProperty(canvas, 'height', this.realCanvasHeight);\n  }\n  canvas.width = this.bufferWidth;\n  canvas.height = this.bufferHeight;\n\n  gl.bindFramebuffer = this.realBindFramebuffer;\n  gl.enable = this.realEnable;\n  gl.disable = this.realDisable;\n  gl.colorMask = this.realColorMask;\n  gl.clearColor = this.realClearColor;\n  gl.viewport = this.realViewport;\n\n  // Check to see if our fake backbuffer is bound and bind the real backbuffer\n  // if that's the case.\n  if (this.lastBoundFramebuffer == this.framebuffer) {\n    gl.bindFramebuffer(gl.FRAMEBUFFER, null);\n  }\n\n  this.isPatched = false;\n\n  setTimeout(function() {\n    Util.safariCssSizeWorkaround(canvas);\n  }, 1);\n};\n\nCardboardDistorter.prototype.setTextureBounds = function(leftBounds, rightBounds) {\n  if (!leftBounds) {\n    leftBounds = [0, 0, 0.5, 1];\n  }\n\n  if (!rightBounds) {\n    rightBounds = [0.5, 0, 0.5, 1];\n  }\n\n  // Left eye\n  this.viewportOffsetScale[0] = leftBounds[0]; // X\n  this.viewportOffsetScale[1] = leftBounds[1]; // Y\n  this.viewportOffsetScale[2] = leftBounds[2]; // Width\n  this.viewportOffsetScale[3] = leftBounds[3]; // Height\n\n  // Right eye\n  this.viewportOffsetScale[4] = rightBounds[0]; // X\n  this.viewportOffsetScale[5] = rightBounds[1]; // Y\n  this.viewportOffsetScale[6] = rightBounds[2]; // Width\n  this.viewportOffsetScale[7] = rightBounds[3]; // Height\n};\n\n/**\n * Performs distortion pass on the injected backbuffer, rendering it to the real\n * backbuffer.\n */\nCardboardDistorter.prototype.submitFrame = function() {\n  var gl = this.gl;\n  var self = this;\n\n  var glState = [];\n\n  if (!window.WebVRConfig.DIRTY_SUBMIT_FRAME_BINDINGS) {\n    glState.push(\n      gl.CURRENT_PROGRAM,\n      gl.ARRAY_BUFFER_BINDING,\n      gl.ELEMENT_ARRAY_BUFFER_BINDING,\n      gl.TEXTURE_BINDING_2D, gl.TEXTURE0\n    );\n  }\n\n  WGLUPreserveGLState(gl, glState, function(gl) {\n    // Bind the real default framebuffer\n    self.realBindFramebuffer.call(gl, gl.FRAMEBUFFER, null);\n\n    // Make sure the GL state is in a good place\n    if (self.cullFace) { self.realDisable.call(gl, gl.CULL_FACE); }\n    if (self.depthTest) { self.realDisable.call(gl, gl.DEPTH_TEST); }\n    if (self.blend) { self.realDisable.call(gl, gl.BLEND); }\n    if (self.scissorTest) { self.realDisable.call(gl, gl.SCISSOR_TEST); }\n    if (self.stencilTest) { self.realDisable.call(gl, gl.STENCIL_TEST); }\n    self.realColorMask.call(gl, true, true, true, true);\n    self.realViewport.call(gl, 0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);\n\n    // If the backbuffer has an alpha channel clear every frame so the page\n    // doesn't show through.\n    if (self.ctxAttribs.alpha || Util.isIOS()) {\n      self.realClearColor.call(gl, 0, 0, 0, 1);\n      gl.clear(gl.COLOR_BUFFER_BIT);\n    }\n\n    // Bind distortion program and mesh\n    gl.useProgram(self.program);\n\n    gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, self.indexBuffer);\n\n    gl.bindBuffer(gl.ARRAY_BUFFER, self.vertexBuffer);\n    gl.enableVertexAttribArray(self.attribs.position);\n    gl.enableVertexAttribArray(self.attribs.texCoord);\n    gl.vertexAttribPointer(self.attribs.position, 2, gl.FLOAT, false, 20, 0);\n    gl.vertexAttribPointer(self.attribs.texCoord, 3, gl.FLOAT, false, 20, 8);\n\n    gl.activeTexture(gl.TEXTURE0);\n    gl.uniform1i(self.uniforms.diffuse, 0);\n    gl.bindTexture(gl.TEXTURE_2D, self.renderTarget);\n\n    gl.uniform4fv(self.uniforms.viewportOffsetScale, self.viewportOffsetScale);\n\n    // Draws both eyes\n    gl.drawElements(gl.TRIANGLES, self.indexCount, gl.UNSIGNED_SHORT, 0);\n\n    if (self.cardboardUI) {\n      self.cardboardUI.renderNoState();\n    }\n\n    // Bind the fake default framebuffer again\n    self.realBindFramebuffer.call(self.gl, gl.FRAMEBUFFER, self.framebuffer);\n\n    // If preserveDrawingBuffer == false clear the framebuffer\n    if (!self.ctxAttribs.preserveDrawingBuffer) {\n      self.realClearColor.call(gl, 0, 0, 0, 0);\n      gl.clear(gl.COLOR_BUFFER_BIT);\n    }\n\n    if (!window.WebVRConfig.DIRTY_SUBMIT_FRAME_BINDINGS) {\n      self.realBindFramebuffer.call(gl, gl.FRAMEBUFFER, self.lastBoundFramebuffer);\n    }\n\n    // Restore state\n    if (self.cullFace) { self.realEnable.call(gl, gl.CULL_FACE); }\n    if (self.depthTest) { self.realEnable.call(gl, gl.DEPTH_TEST); }\n    if (self.blend) { self.realEnable.call(gl, gl.BLEND); }\n    if (self.scissorTest) { self.realEnable.call(gl, gl.SCISSOR_TEST); }\n    if (self.stencilTest) { self.realEnable.call(gl, gl.STENCIL_TEST); }\n\n    self.realColorMask.apply(gl, self.colorMask);\n    self.realViewport.apply(gl, self.viewport);\n    if (self.ctxAttribs.alpha || !self.ctxAttribs.preserveDrawingBuffer) {\n      self.realClearColor.apply(gl, self.clearColor);\n    }\n  });\n\n  // Workaround for the fact that Safari doesn't allow us to patch the canvas\n  // width and height correctly. After each submit frame check to see what the\n  // real backbuffer size has been set to and resize the fake backbuffer size\n  // to match.\n  if (Util.isIOS()) {\n    var canvas = gl.canvas;\n    if (canvas.width != self.bufferWidth || canvas.height != self.bufferHeight) {\n      self.bufferWidth = canvas.width;\n      self.bufferHeight = canvas.height;\n      self.onResize();\n    }\n  }\n};\n\n/**\n * Call when the deviceInfo has changed. At this point we need\n * to re-calculate the distortion mesh.\n */\nCardboardDistorter.prototype.updateDeviceInfo = function(deviceInfo) {\n  var gl = this.gl;\n  var self = this;\n\n  var glState = [gl.ARRAY_BUFFER_BINDING, gl.ELEMENT_ARRAY_BUFFER_BINDING];\n  WGLUPreserveGLState(gl, glState, function(gl) {\n    var vertices = self.computeMeshVertices_(self.meshWidth, self.meshHeight, deviceInfo);\n    gl.bindBuffer(gl.ARRAY_BUFFER, self.vertexBuffer);\n    gl.bufferData(gl.ARRAY_BUFFER, vertices, gl.STATIC_DRAW);\n\n    // Indices don't change based on device parameters, so only compute once.\n    if (!self.indexCount) {\n      var indices = self.computeMeshIndices_(self.meshWidth, self.meshHeight);\n      gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, self.indexBuffer);\n      gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, indices, gl.STATIC_DRAW);\n      self.indexCount = indices.length;\n    }\n  });\n};\n\n/**\n * Build the distortion mesh vertices.\n * Based on code from the Unity cardboard plugin.\n */\nCardboardDistorter.prototype.computeMeshVertices_ = function(width, height, deviceInfo) {\n  var vertices = new Float32Array(2 * width * height * 5);\n\n  var lensFrustum = deviceInfo.getLeftEyeVisibleTanAngles();\n  var noLensFrustum = deviceInfo.getLeftEyeNoLensTanAngles();\n  var viewport = deviceInfo.getLeftEyeVisibleScreenRect(noLensFrustum);\n  var vidx = 0;\n  var iidx = 0;\n  for (var e = 0; e < 2; e++) {\n    for (var j = 0; j < height; j++) {\n      for (var i = 0; i < width; i++, vidx++) {\n        var u = i / (width - 1);\n        var v = j / (height - 1);\n\n        // Grid points regularly spaced in StreoScreen, and barrel distorted in\n        // the mesh.\n        var s = u;\n        var t = v;\n        var x = Util.lerp(lensFrustum[0], lensFrustum[2], u);\n        var y = Util.lerp(lensFrustum[3], lensFrustum[1], v);\n        var d = Math.sqrt(x * x + y * y);\n        var r = deviceInfo.distortion.distortInverse(d);\n        var p = x * r / d;\n        var q = y * r / d;\n        u = (p - noLensFrustum[0]) / (noLensFrustum[2] - noLensFrustum[0]);\n        v = (q - noLensFrustum[3]) / (noLensFrustum[1] - noLensFrustum[3]);\n\n        // Convert u,v to mesh screen coordinates.\n        var aspect = deviceInfo.device.widthMeters / deviceInfo.device.heightMeters;\n\n        // FIXME: The original Unity plugin multiplied U by the aspect ratio\n        // and didn't multiply either value by 2, but that seems to get it\n        // really close to correct looking for me. I hate this kind of \"Don't\n        // know why it works\" code though, and wold love a more logical\n        // explanation of what needs to happen here.\n        u = (viewport.x + u * viewport.width - 0.5) * 2.0; //* aspect;\n        v = (viewport.y + v * viewport.height - 0.5) * 2.0;\n\n        vertices[(vidx * 5) + 0] = u; // position.x\n        vertices[(vidx * 5) + 1] = v; // position.y\n        vertices[(vidx * 5) + 2] = s; // texCoord.x\n        vertices[(vidx * 5) + 3] = t; // texCoord.y\n        vertices[(vidx * 5) + 4] = e; // texCoord.z (viewport index)\n      }\n    }\n    var w = lensFrustum[2] - lensFrustum[0];\n    lensFrustum[0] = -(w + lensFrustum[0]);\n    lensFrustum[2] = w - lensFrustum[2];\n    w = noLensFrustum[2] - noLensFrustum[0];\n    noLensFrustum[0] = -(w + noLensFrustum[0]);\n    noLensFrustum[2] = w - noLensFrustum[2];\n    viewport.x = 1 - (viewport.x + viewport.width);\n  }\n  return vertices;\n}\n\n/**\n * Build the distortion mesh indices.\n * Based on code from the Unity cardboard plugin.\n */\nCardboardDistorter.prototype.computeMeshIndices_ = function(width, height) {\n  var indices = new Uint16Array(2 * (width - 1) * (height - 1) * 6);\n  var halfwidth = width / 2;\n  var halfheight = height / 2;\n  var vidx = 0;\n  var iidx = 0;\n  for (var e = 0; e < 2; e++) {\n    for (var j = 0; j < height; j++) {\n      for (var i = 0; i < width; i++, vidx++) {\n        if (i == 0 || j == 0)\n          continue;\n        // Build a quad.  Lower right and upper left quadrants have quads with\n        // the triangle diagonal flipped to get the vignette to interpolate\n        // correctly.\n        if ((i <= halfwidth) == (j <= halfheight)) {\n          // Quad diagonal lower left to upper right.\n          indices[iidx++] = vidx;\n          indices[iidx++] = vidx - width - 1;\n          indices[iidx++] = vidx - width;\n          indices[iidx++] = vidx - width - 1;\n          indices[iidx++] = vidx;\n          indices[iidx++] = vidx - 1;\n        } else {\n          // Quad diagonal upper left to lower right.\n          indices[iidx++] = vidx - 1;\n          indices[iidx++] = vidx - width;\n          indices[iidx++] = vidx;\n          indices[iidx++] = vidx - width;\n          indices[iidx++] = vidx - 1;\n          indices[iidx++] = vidx - width - 1;\n        }\n      }\n    }\n  }\n  return indices;\n};\n\nCardboardDistorter.prototype.getOwnPropertyDescriptor_ = function(proto, attrName) {\n  var descriptor = Object.getOwnPropertyDescriptor(proto, attrName);\n  // In some cases (ahem... Safari), the descriptor returns undefined get and\n  // set fields. In this case, we need to create a synthetic property\n  // descriptor. This works around some of the issues in\n  // https://github.com/borismus/webvr-polyfill/issues/46\n  if (descriptor.get === undefined || descriptor.set === undefined) {\n    descriptor.configurable = true;\n    descriptor.enumerable = true;\n    descriptor.get = function() {\n      return this.getAttribute(attrName);\n    };\n    descriptor.set = function(val) {\n      this.setAttribute(attrName, val);\n    };\n  }\n  return descriptor;\n};\n\nmodule.exports = CardboardDistorter;\n","/*\n * Copyright 2016 Google Inc. All Rights Reserved.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nvar Util = require('./util.js');\nvar WGLUPreserveGLState = require('./deps/wglu-preserve-state.js');\n\nvar uiVS = [\n  'attribute vec2 position;',\n\n  'uniform mat4 projectionMat;',\n\n  'void main() {',\n  '  gl_Position = projectionMat * vec4( position, -1.0, 1.0 );',\n  '}',\n].join('\\n');\n\nvar uiFS = [\n  'precision mediump float;',\n\n  'uniform vec4 color;',\n\n  'void main() {',\n  '  gl_FragColor = color;',\n  '}',\n].join('\\n');\n\nvar DEG2RAD = Math.PI/180.0;\n\n// The gear has 6 identical sections, each spanning 60 degrees.\nvar kAnglePerGearSection = 60;\n\n// Half-angle of the span of the outer rim.\nvar kOuterRimEndAngle = 12;\n\n// Angle between the middle of the outer rim and the start of the inner rim.\nvar kInnerRimBeginAngle = 20;\n\n// Distance from center to outer rim, normalized so that the entire model\n// fits in a [-1, 1] x [-1, 1] square.\nvar kOuterRadius = 1;\n\n// Distance from center to depressed rim, in model units.\nvar kMiddleRadius = 0.75;\n\n// Radius of the inner hollow circle, in model units.\nvar kInnerRadius = 0.3125;\n\n// Center line thickness in DP.\nvar kCenterLineThicknessDp = 4;\n\n// Button width in DP.\nvar kButtonWidthDp = 28;\n\n// Factor to scale the touch area that responds to the touch.\nvar kTouchSlopFactor = 1.5;\n\nvar Angles = [\n  0, kOuterRimEndAngle, kInnerRimBeginAngle,\n  kAnglePerGearSection - kInnerRimBeginAngle,\n  kAnglePerGearSection - kOuterRimEndAngle\n];\n\n/**\n * Renders the alignment line and \"options\" gear. It is assumed that the canvas\n * this is rendered into covers the entire screen (or close to it.)\n */\nfunction CardboardUI(gl) {\n  this.gl = gl;\n\n  this.attribs = {\n    position: 0\n  };\n  this.program = Util.linkProgram(gl, uiVS, uiFS, this.attribs);\n  this.uniforms = Util.getProgramUniforms(gl, this.program);\n\n  this.vertexBuffer = gl.createBuffer();\n  this.gearOffset = 0;\n  this.gearVertexCount = 0;\n  this.arrowOffset = 0;\n  this.arrowVertexCount = 0;\n\n  this.projMat = new Float32Array(16);\n\n  this.listener = null;\n\n  this.onResize();\n};\n\n/**\n * Tears down all the resources created by the UI renderer.\n */\nCardboardUI.prototype.destroy = function() {\n  var gl = this.gl;\n\n  if (this.listener) {\n    gl.canvas.removeEventListener('click', this.listener, false);\n  }\n\n  gl.deleteProgram(this.program);\n  gl.deleteBuffer(this.vertexBuffer);\n};\n\n/**\n * Adds a listener to clicks on the gear and back icons\n */\nCardboardUI.prototype.listen = function(optionsCallback, backCallback) {\n  var canvas = this.gl.canvas;\n  this.listener = function(event) {\n    var midline = canvas.clientWidth / 2;\n    var buttonSize = kButtonWidthDp * kTouchSlopFactor;\n    // Check to see if the user clicked on (or around) the gear icon\n    if (event.clientX > midline - buttonSize &&\n        event.clientX < midline + buttonSize &&\n        event.clientY > canvas.clientHeight - buttonSize) {\n      optionsCallback(event);\n    }\n    // Check to see if the user clicked on (or around) the back icon\n    else if (event.clientX < buttonSize && event.clientY < buttonSize) {\n      backCallback(event);\n    }\n  };\n  canvas.addEventListener('click', this.listener, false);\n};\n\n/**\n * Builds the UI mesh.\n */\nCardboardUI.prototype.onResize = function() {\n  var gl = this.gl;\n  var self = this;\n\n  var glState = [\n    gl.ARRAY_BUFFER_BINDING\n  ];\n\n  WGLUPreserveGLState(gl, glState, function(gl) {\n    var vertices = [];\n\n    var midline = gl.drawingBufferWidth / 2;\n\n    // The gl buffer size will likely be smaller than the physical pixel count.\n    // So we need to scale the dps down based on the actual buffer size vs physical pixel count.\n    // This will properly size the ui elements no matter what the gl buffer resolution is\n    var physicalPixels = Math.max(screen.width, screen.height) * window.devicePixelRatio;\n    var scalingRatio = gl.drawingBufferWidth / physicalPixels;\n    var dps = scalingRatio *  window.devicePixelRatio;\n\n    var lineWidth = kCenterLineThicknessDp * dps / 2;\n    var buttonSize = kButtonWidthDp * kTouchSlopFactor * dps;\n    var buttonScale = kButtonWidthDp * dps / 2;\n    var buttonBorder = ((kButtonWidthDp * kTouchSlopFactor) - kButtonWidthDp) * dps;\n\n    // Build centerline\n    vertices.push(midline - lineWidth, buttonSize);\n    vertices.push(midline - lineWidth, gl.drawingBufferHeight);\n    vertices.push(midline + lineWidth, buttonSize);\n    vertices.push(midline + lineWidth, gl.drawingBufferHeight);\n\n    // Build gear\n    self.gearOffset = (vertices.length / 2);\n\n    function addGearSegment(theta, r) {\n      var angle = (90 - theta) * DEG2RAD;\n      var x = Math.cos(angle);\n      var y = Math.sin(angle);\n      vertices.push(kInnerRadius * x * buttonScale + midline, kInnerRadius * y * buttonScale + buttonScale);\n      vertices.push(r * x * buttonScale + midline, r * y * buttonScale + buttonScale);\n    }\n\n    for (var i = 0; i <= 6; i++) {\n      var segmentTheta = i * kAnglePerGearSection;\n\n      addGearSegment(segmentTheta, kOuterRadius);\n      addGearSegment(segmentTheta + kOuterRimEndAngle, kOuterRadius);\n      addGearSegment(segmentTheta + kInnerRimBeginAngle, kMiddleRadius);\n      addGearSegment(segmentTheta + (kAnglePerGearSection - kInnerRimBeginAngle), kMiddleRadius);\n      addGearSegment(segmentTheta + (kAnglePerGearSection - kOuterRimEndAngle), kOuterRadius);\n    }\n\n    self.gearVertexCount = (vertices.length / 2) - self.gearOffset;\n\n    // Build back arrow\n    self.arrowOffset = (vertices.length / 2);\n\n    function addArrowVertex(x, y) {\n      vertices.push(buttonBorder + x, gl.drawingBufferHeight - buttonBorder - y);\n    }\n\n    var angledLineWidth = lineWidth / Math.sin(45 * DEG2RAD);\n\n    addArrowVertex(0, buttonScale);\n    addArrowVertex(buttonScale, 0);\n    addArrowVertex(buttonScale + angledLineWidth, angledLineWidth);\n    addArrowVertex(angledLineWidth, buttonScale + angledLineWidth);\n\n    addArrowVertex(angledLineWidth, buttonScale - angledLineWidth);\n    addArrowVertex(0, buttonScale);\n    addArrowVertex(buttonScale, buttonScale * 2);\n    addArrowVertex(buttonScale + angledLineWidth, (buttonScale * 2) - angledLineWidth);\n\n    addArrowVertex(angledLineWidth, buttonScale - angledLineWidth);\n    addArrowVertex(0, buttonScale);\n\n    addArrowVertex(angledLineWidth, buttonScale - lineWidth);\n    addArrowVertex(kButtonWidthDp * dps, buttonScale - lineWidth);\n    addArrowVertex(angledLineWidth, buttonScale + lineWidth);\n    addArrowVertex(kButtonWidthDp * dps, buttonScale + lineWidth);\n\n    self.arrowVertexCount = (vertices.length / 2) - self.arrowOffset;\n\n    // Buffer data\n    gl.bindBuffer(gl.ARRAY_BUFFER, self.vertexBuffer);\n    gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(vertices), gl.STATIC_DRAW);\n  });\n};\n\n/**\n * Performs distortion pass on the injected backbuffer, rendering it to the real\n * backbuffer.\n */\nCardboardUI.prototype.render = function() {\n  var gl = this.gl;\n  var self = this;\n\n  var glState = [\n    gl.CULL_FACE,\n    gl.DEPTH_TEST,\n    gl.BLEND,\n    gl.SCISSOR_TEST,\n    gl.STENCIL_TEST,\n    gl.COLOR_WRITEMASK,\n    gl.VIEWPORT,\n\n    gl.CURRENT_PROGRAM,\n    gl.ARRAY_BUFFER_BINDING\n  ];\n\n  WGLUPreserveGLState(gl, glState, function(gl) {\n    // Make sure the GL state is in a good place\n    gl.disable(gl.CULL_FACE);\n    gl.disable(gl.DEPTH_TEST);\n    gl.disable(gl.BLEND);\n    gl.disable(gl.SCISSOR_TEST);\n    gl.disable(gl.STENCIL_TEST);\n    gl.colorMask(true, true, true, true);\n    gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);\n\n    self.renderNoState();\n  });\n};\n\nCardboardUI.prototype.renderNoState = function() {\n  var gl = this.gl;\n\n  // Bind distortion program and mesh\n  gl.useProgram(this.program);\n\n  gl.bindBuffer(gl.ARRAY_BUFFER, this.vertexBuffer);\n  gl.enableVertexAttribArray(this.attribs.position);\n  gl.vertexAttribPointer(this.attribs.position, 2, gl.FLOAT, false, 8, 0);\n\n  gl.uniform4f(this.uniforms.color, 1.0, 1.0, 1.0, 1.0);\n\n  Util.orthoMatrix(this.projMat, 0, gl.drawingBufferWidth, 0, gl.drawingBufferHeight, 0.1, 1024.0);\n  gl.uniformMatrix4fv(this.uniforms.projectionMat, false, this.projMat);\n\n  // Draws UI element\n  gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);\n  gl.drawArrays(gl.TRIANGLE_STRIP, this.gearOffset, this.gearVertexCount);\n  gl.drawArrays(gl.TRIANGLE_STRIP, this.arrowOffset, this.arrowVertexCount);\n};\n\nmodule.exports = CardboardUI;\n","/*\n * Copyright 2016 Google Inc. All Rights Reserved.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nvar CardboardDistorter = require('./cardboard-distorter.js');\nvar CardboardUI = require('./cardboard-ui.js');\nvar DeviceInfo = require('./device-info.js');\nvar Dpdb = require('./dpdb/dpdb.js');\nvar FusionPoseSensor = require('./sensor-fusion/fusion-pose-sensor.js');\nvar RotateInstructions = require('./rotate-instructions.js');\nvar ViewerSelector = require('./viewer-selector.js');\nvar VRDisplay = require('./base.js').VRDisplay;\nvar Util = require('./util.js');\n\nvar Eye = {\n  LEFT: 'left',\n  RIGHT: 'right'\n};\n\n/**\n * VRDisplay based on mobile device parameters and DeviceMotion APIs.\n */\nfunction CardboardVRDisplay() {\n  this.displayName = 'Cardboard VRDisplay (webvr-polyfill)';\n\n  this.capabilities.hasOrientation = true;\n  this.capabilities.canPresent = true;\n\n  // \"Private\" members.\n  this.bufferScale_ = window.WebVRConfig.BUFFER_SCALE;\n  this.poseSensor_ = new FusionPoseSensor();\n  this.distorter_ = null;\n  this.cardboardUI_ = null;\n\n  this.dpdb_ = new Dpdb(true, this.onDeviceParamsUpdated_.bind(this));\n  this.deviceInfo_ = new DeviceInfo(this.dpdb_.getDeviceParams());\n\n  this.viewerSelector_ = new ViewerSelector();\n  this.viewerSelector_.onChange(this.onViewerChanged_.bind(this));\n\n  // Set the correct initial viewer.\n  this.deviceInfo_.setViewer(this.viewerSelector_.getCurrentViewer());\n\n  if (!window.WebVRConfig.ROTATE_INSTRUCTIONS_DISABLED) {\n    this.rotateInstructions_ = new RotateInstructions();\n  }\n\n  if (Util.isIOS()) {\n    // Listen for resize events to workaround this awful Safari bug.\n    window.addEventListener('resize', this.onResize_.bind(this));\n  }\n}\nCardboardVRDisplay.prototype = new VRDisplay();\n\nCardboardVRDisplay.prototype.getImmediatePose = function() {\n  return {\n    position: this.poseSensor_.getPosition(),\n    orientation: this.poseSensor_.getOrientation(),\n    linearVelocity: null,\n    linearAcceleration: null,\n    angularVelocity: null,\n    angularAcceleration: null\n  };\n};\n\nCardboardVRDisplay.prototype.resetPose = function() {\n  this.poseSensor_.resetPose();\n};\n\nCardboardVRDisplay.prototype.getEyeParameters = function(whichEye) {\n  var offset = [this.deviceInfo_.viewer.interLensDistance * 0.5, 0.0, 0.0];\n  var fieldOfView;\n\n  // TODO: FoV can be a little expensive to compute. Cache when device params change.\n  if (whichEye == Eye.LEFT) {\n    offset[0] *= -1.0;\n    fieldOfView = this.deviceInfo_.getFieldOfViewLeftEye();\n  } else if (whichEye == Eye.RIGHT) {\n    fieldOfView = this.deviceInfo_.getFieldOfViewRightEye();\n  } else {\n    console.error('Invalid eye provided: %s', whichEye);\n    return null;\n  }\n\n  return {\n    fieldOfView: fieldOfView,\n    offset: offset,\n    // TODO: Should be able to provide better values than these.\n    renderWidth: this.deviceInfo_.device.width * 0.5 * this.bufferScale_,\n    renderHeight: this.deviceInfo_.device.height * this.bufferScale_,\n  };\n};\n\nCardboardVRDisplay.prototype.onDeviceParamsUpdated_ = function(newParams) {\n  if (Util.isDebug()) {\n    console.log('DPDB reported that device params were updated.');\n  }\n  this.deviceInfo_.updateDeviceParams(newParams);\n\n  if (this.distorter_) {\n    this.distorter_.updateDeviceInfo(this.deviceInfo_);\n  }\n};\n\nCardboardVRDisplay.prototype.updateBounds_ = function () {\n  if (this.layer_ && this.distorter_ && (this.layer_.leftBounds || this.layer_.rightBounds)) {\n    this.distorter_.setTextureBounds(this.layer_.leftBounds, this.layer_.rightBounds);\n  }\n};\n\nCardboardVRDisplay.prototype.beginPresent_ = function() {\n  var gl = this.layer_.source.getContext('webgl');\n  if (!gl)\n    gl = this.layer_.source.getContext('experimental-webgl');\n  if (!gl)\n    gl = this.layer_.source.getContext('webgl2');\n\n  if (!gl)\n    return; // Can't do distortion without a WebGL context.\n\n  // Provides a way to opt out of distortion\n  if (this.layer_.predistorted) {\n    if (!window.WebVRConfig.CARDBOARD_UI_DISABLED) {\n      gl.canvas.width = Util.getScreenWidth() * this.bufferScale_;\n      gl.canvas.height = Util.getScreenHeight() * this.bufferScale_;\n      this.cardboardUI_ = new CardboardUI(gl);\n    }\n  } else {\n    // Create a new distorter for the target context\n    this.distorter_ = new CardboardDistorter(gl);\n    this.distorter_.updateDeviceInfo(this.deviceInfo_);\n    this.cardboardUI_ = this.distorter_.cardboardUI;\n  }\n\n  if (this.cardboardUI_) {\n    this.cardboardUI_.listen(function(e) {\n      // Options clicked.\n      this.viewerSelector_.show(this.layer_.source.parentElement);\n      e.stopPropagation();\n      e.preventDefault();\n    }.bind(this), function(e) {\n      // Back clicked.\n      this.exitPresent();\n      e.stopPropagation();\n      e.preventDefault();\n    }.bind(this));\n  }\n\n  if (this.rotateInstructions_) {\n    if (Util.isLandscapeMode() && Util.isMobile()) {\n      // In landscape mode, temporarily show the \"put into Cardboard\"\n      // interstitial. Otherwise, do the default thing.\n      this.rotateInstructions_.showTemporarily(3000, this.layer_.source.parentElement);\n    } else {\n      this.rotateInstructions_.update();\n    }\n  }\n\n  // Listen for orientation change events in order to show interstitial.\n  this.orientationHandler = this.onOrientationChange_.bind(this);\n  window.addEventListener('orientationchange', this.orientationHandler);\n\n  // Listen for present display change events in order to update distorter dimensions\n  this.vrdisplaypresentchangeHandler = this.updateBounds_.bind(this);\n  window.addEventListener('vrdisplaypresentchange', this.vrdisplaypresentchangeHandler);\n\n  // Fire this event initially, to give geometry-distortion clients the chance\n  // to do something custom.\n  this.fireVRDisplayDeviceParamsChange_();\n};\n\nCardboardVRDisplay.prototype.endPresent_ = function() {\n  if (this.distorter_) {\n    this.distorter_.destroy();\n    this.distorter_ = null;\n  }\n  if (this.cardboardUI_) {\n    this.cardboardUI_.destroy();\n    this.cardboardUI_ = null;\n  }\n\n  if (this.rotateInstructions_) {\n    this.rotateInstructions_.hide();\n  }\n  this.viewerSelector_.hide();\n\n  window.removeEventListener('orientationchange', this.orientationHandler);\n  window.removeEventListener('vrdisplaypresentchange', this.vrdisplaypresentchangeHandler);\n};\n\nCardboardVRDisplay.prototype.submitFrame = function(pose) {\n  if (this.distorter_) {\n    this.updateBounds_();\n    this.distorter_.submitFrame();\n  } else if (this.cardboardUI_ && this.layer_) {\n    // Hack for predistorted: true.\n    var canvas = this.layer_.source.getContext('webgl').canvas;\n    if (canvas.width != this.lastWidth || canvas.height != this.lastHeight) {\n      this.cardboardUI_.onResize();\n    }\n    this.lastWidth = canvas.width;\n    this.lastHeight = canvas.height;\n\n    // Render the Cardboard UI.\n    this.cardboardUI_.render();\n  }\n};\n\nCardboardVRDisplay.prototype.onOrientationChange_ = function(e) {\n  // Hide the viewer selector.\n  this.viewerSelector_.hide();\n\n  // Update the rotate instructions.\n  if (this.rotateInstructions_) {\n    this.rotateInstructions_.update();\n  }\n\n  this.onResize_();\n};\n\nCardboardVRDisplay.prototype.onResize_ = function(e) {\n  if (this.layer_) {\n    var gl = this.layer_.source.getContext('webgl');\n    // Size the CSS canvas.\n    // Added padding on right and bottom because iPhone 5 will not\n    // hide the URL bar unless content is bigger than the screen.\n    // This will not be visible as long as the container element (e.g. body)\n    // is set to 'overflow: hidden'.\n    // Additionally, 'box-sizing: content-box' ensures renderWidth = width + padding.\n    // This is required when 'box-sizing: border-box' is used elsewhere in the page.\n    var cssProperties = [\n      'position: absolute',\n      'top: 0',\n      'left: 0',\n      // Use vw/vh to handle implicitly devicePixelRatio; issue #282\n      'width: 100vw',\n      'height: 100vh',\n      'border: 0',\n      'margin: 0',\n      // Set no padding in the case where you don't have control over\n      // the content injection, like in Unity WebGL; issue #282\n      'padding: 0px',\n      'box-sizing: content-box',\n    ];\n    gl.canvas.setAttribute('style', cssProperties.join('; ') + ';');\n\n    Util.safariCssSizeWorkaround(gl.canvas);\n  }\n};\n\nCardboardVRDisplay.prototype.onViewerChanged_ = function(viewer) {\n  this.deviceInfo_.setViewer(viewer);\n\n  if (this.distorter_) {\n    // Update the distortion appropriately.\n    this.distorter_.updateDeviceInfo(this.deviceInfo_);\n  }\n\n  // Fire a new event containing viewer and device parameters for clients that\n  // want to implement their own geometry-based distortion.\n  this.fireVRDisplayDeviceParamsChange_();\n};\n\nCardboardVRDisplay.prototype.fireVRDisplayDeviceParamsChange_ = function() {\n  var event = new CustomEvent('vrdisplaydeviceparamschange', {\n    detail: {\n      vrdisplay: this,\n      deviceInfo: this.deviceInfo_,\n    }\n  });\n  window.dispatchEvent(event);\n};\n\nmodule.exports = CardboardVRDisplay;\n","/**\n * Copyright (c) 2016, Brandon Jones.\n * https://github.com/toji/webgl-utils/blob/master/src/wglu-preserve-state.js\n * LICENSE: https://github.com/toji/webgl-utils/blob/master/LICENSE.md\n */\n\nfunction WGLUPreserveGLState(gl, bindings, callback) {\n  if (!bindings) {\n    callback(gl);\n    return;\n  }\n\n  var boundValues = [];\n\n  var activeTexture = null;\n  for (var i = 0; i < bindings.length; ++i) {\n    var binding = bindings[i];\n    switch (binding) {\n      case gl.TEXTURE_BINDING_2D:\n      case gl.TEXTURE_BINDING_CUBE_MAP:\n        var textureUnit = bindings[++i];\n        if (textureUnit < gl.TEXTURE0 || textureUnit > gl.TEXTURE31) {\n          console.error(\"TEXTURE_BINDING_2D or TEXTURE_BINDING_CUBE_MAP must be followed by a valid texture unit\");\n          boundValues.push(null, null);\n          break;\n        }\n        if (!activeTexture) {\n          activeTexture = gl.getParameter(gl.ACTIVE_TEXTURE);\n        }\n        gl.activeTexture(textureUnit);\n        boundValues.push(gl.getParameter(binding), null);\n        break;\n      case gl.ACTIVE_TEXTURE:\n        activeTexture = gl.getParameter(gl.ACTIVE_TEXTURE);\n        boundValues.push(null);\n        break;\n      default:\n        boundValues.push(gl.getParameter(binding));\n        break;\n    }\n  }\n\n  callback(gl);\n\n  for (var i = 0; i < bindings.length; ++i) {\n    var binding = bindings[i];\n    var boundValue = boundValues[i];\n    switch (binding) {\n      case gl.ACTIVE_TEXTURE:\n        break; // Ignore this binding, since we special-case it to happen last.\n      case gl.ARRAY_BUFFER_BINDING:\n        gl.bindBuffer(gl.ARRAY_BUFFER, boundValue);\n        break;\n      case gl.COLOR_CLEAR_VALUE:\n        gl.clearColor(boundValue[0], boundValue[1], boundValue[2], boundValue[3]);\n        break;\n      case gl.COLOR_WRITEMASK:\n        gl.colorMask(boundValue[0], boundValue[1], boundValue[2], boundValue[3]);\n        break;\n      case gl.CURRENT_PROGRAM:\n        gl.useProgram(boundValue);\n        break;\n      case gl.ELEMENT_ARRAY_BUFFER_BINDING:\n        gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, boundValue);\n        break;\n      case gl.FRAMEBUFFER_BINDING:\n        gl.bindFramebuffer(gl.FRAMEBUFFER, boundValue);\n        break;\n      case gl.RENDERBUFFER_BINDING:\n        gl.bindRenderbuffer(gl.RENDERBUFFER, boundValue);\n        break;\n      case gl.TEXTURE_BINDING_2D:\n        var textureUnit = bindings[++i];\n        if (textureUnit < gl.TEXTURE0 || textureUnit > gl.TEXTURE31)\n          break;\n        gl.activeTexture(textureUnit);\n        gl.bindTexture(gl.TEXTURE_2D, boundValue);\n        break;\n      case gl.TEXTURE_BINDING_CUBE_MAP:\n        var textureUnit = bindings[++i];\n        if (textureUnit < gl.TEXTURE0 || textureUnit > gl.TEXTURE31)\n          break;\n        gl.activeTexture(textureUnit);\n        gl.bindTexture(gl.TEXTURE_CUBE_MAP, boundValue);\n        break;\n      case gl.VIEWPORT:\n        gl.viewport(boundValue[0], boundValue[1], boundValue[2], boundValue[3]);\n        break;\n      case gl.BLEND:\n      case gl.CULL_FACE:\n      case gl.DEPTH_TEST:\n      case gl.SCISSOR_TEST:\n      case gl.STENCIL_TEST:\n        if (boundValue) {\n          gl.enable(binding);\n        } else {\n          gl.disable(binding);\n        }\n        break;\n      default:\n        console.log(\"No GL restore behavior for 0x\" + binding.toString(16));\n        break;\n    }\n\n    if (activeTexture) {\n      gl.activeTexture(activeTexture);\n    }\n  }\n}\n\nmodule.exports = WGLUPreserveGLState;\n","/*\n * Copyright 2015 Google Inc. All Rights Reserved.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nvar Distortion = require('./distortion/distortion.js');\nvar MathUtil = require('./math-util.js');\nvar Util = require('./util.js');\n\nfunction Device(params) {\n  this.width = params.width || Util.getScreenWidth();\n  this.height = params.height || Util.getScreenHeight();\n  this.widthMeters = params.widthMeters;\n  this.heightMeters = params.heightMeters;\n  this.bevelMeters = params.bevelMeters;\n}\n\n\n// Fallback Android device (based on Nexus 5 measurements) for use when\n// we can't recognize an Android device.\nvar DEFAULT_ANDROID = new Device({\n  widthMeters: 0.110,\n  heightMeters: 0.062,\n  bevelMeters: 0.004\n});\n\n// Fallback iOS device (based on iPhone6) for use when\n// we can't recognize an Android device.\nvar DEFAULT_IOS = new Device({\n  widthMeters: 0.1038,\n  heightMeters: 0.0584,\n  bevelMeters: 0.004\n});\n\n\nvar Viewers = {\n  CardboardV1: new CardboardViewer({\n    id: 'CardboardV1',\n    label: 'Cardboard I/O 2014',\n    fov: 40,\n    interLensDistance: 0.060,\n    baselineLensDistance: 0.035,\n    screenLensDistance: 0.042,\n    distortionCoefficients: [0.441, 0.156],\n    inverseCoefficients: [-0.4410035, 0.42756155, -0.4804439, 0.5460139,\n      -0.58821183, 0.5733938, -0.48303202, 0.33299083, -0.17573841,\n      0.0651772, -0.01488963, 0.001559834]\n  }),\n  CardboardV2: new CardboardViewer({\n    id: 'CardboardV2',\n    label: 'Cardboard I/O 2015',\n    fov: 60,\n    interLensDistance: 0.064,\n    baselineLensDistance: 0.035,\n    screenLensDistance: 0.039,\n    distortionCoefficients: [0.34, 0.55],\n    inverseCoefficients: [-0.33836704, -0.18162185, 0.862655, -1.2462051,\n      1.0560602, -0.58208317, 0.21609078, -0.05444823, 0.009177956,\n      -9.904169E-4, 6.183535E-5, -1.6981803E-6]\n  })\n};\n\n\nvar DEFAULT_LEFT_CENTER = {x: 0.5, y: 0.5};\nvar DEFAULT_RIGHT_CENTER = {x: 0.5, y: 0.5};\n\n/**\n * Manages information about the device and the viewer.\n *\n * deviceParams indicates the parameters of the device to use (generally\n * obtained from dpdb.getDeviceParams()). Can be null to mean no device\n * params were found.\n */\nfunction DeviceInfo(deviceParams) {\n  this.viewer = Viewers.CardboardV2;\n  this.updateDeviceParams(deviceParams);\n  this.distortion = new Distortion(this.viewer.distortionCoefficients);\n}\n\nDeviceInfo.prototype.updateDeviceParams = function(deviceParams) {\n  this.device = this.determineDevice_(deviceParams) || this.device;\n};\n\nDeviceInfo.prototype.getDevice = function() {\n  return this.device;\n};\n\nDeviceInfo.prototype.setViewer = function(viewer) {\n  this.viewer = viewer;\n  this.distortion = new Distortion(this.viewer.distortionCoefficients);\n};\n\nDeviceInfo.prototype.determineDevice_ = function(deviceParams) {\n  if (!deviceParams) {\n    // No parameters, so use a default.\n    if (Util.isIOS()) {\n      console.warn('Using fallback iOS device measurements.');\n      return DEFAULT_IOS;\n    } else {\n      console.warn('Using fallback Android device measurements.');\n      return DEFAULT_ANDROID;\n    }\n  }\n\n  // Compute device screen dimensions based on deviceParams.\n  var METERS_PER_INCH = 0.0254;\n  var metersPerPixelX = METERS_PER_INCH / deviceParams.xdpi;\n  var metersPerPixelY = METERS_PER_INCH / deviceParams.ydpi;\n  var width = Util.getScreenWidth();\n  var height = Util.getScreenHeight();\n  return new Device({\n    widthMeters: metersPerPixelX * width,\n    heightMeters: metersPerPixelY * height,\n    bevelMeters: deviceParams.bevelMm * 0.001,\n  });\n};\n\n/**\n * Calculates field of view for the left eye.\n */\nDeviceInfo.prototype.getDistortedFieldOfViewLeftEye = function() {\n  var viewer = this.viewer;\n  var device = this.device;\n  var distortion = this.distortion;\n\n  // Device.height and device.width for device in portrait mode, so transpose.\n  var eyeToScreenDistance = viewer.screenLensDistance;\n\n  var outerDist = (device.widthMeters - viewer.interLensDistance) / 2;\n  var innerDist = viewer.interLensDistance / 2;\n  var bottomDist = viewer.baselineLensDistance - device.bevelMeters;\n  var topDist = device.heightMeters - bottomDist;\n\n  var outerAngle = MathUtil.radToDeg * Math.atan(\n      distortion.distort(outerDist / eyeToScreenDistance));\n  var innerAngle = MathUtil.radToDeg * Math.atan(\n      distortion.distort(innerDist / eyeToScreenDistance));\n  var bottomAngle = MathUtil.radToDeg * Math.atan(\n      distortion.distort(bottomDist / eyeToScreenDistance));\n  var topAngle = MathUtil.radToDeg * Math.atan(\n      distortion.distort(topDist / eyeToScreenDistance));\n\n  return {\n    leftDegrees: Math.min(outerAngle, viewer.fov),\n    rightDegrees: Math.min(innerAngle, viewer.fov),\n    downDegrees: Math.min(bottomAngle, viewer.fov),\n    upDegrees: Math.min(topAngle, viewer.fov)\n  };\n};\n\n/**\n * Calculates the tan-angles from the maximum FOV for the left eye for the\n * current device and screen parameters.\n */\nDeviceInfo.prototype.getLeftEyeVisibleTanAngles = function() {\n  var viewer = this.viewer;\n  var device = this.device;\n  var distortion = this.distortion;\n\n  // Tan-angles from the max FOV.\n  var fovLeft = Math.tan(-MathUtil.degToRad * viewer.fov);\n  var fovTop = Math.tan(MathUtil.degToRad * viewer.fov);\n  var fovRight = Math.tan(MathUtil.degToRad * viewer.fov);\n  var fovBottom = Math.tan(-MathUtil.degToRad * viewer.fov);\n  // Viewport size.\n  var halfWidth = device.widthMeters / 4;\n  var halfHeight = device.heightMeters / 2;\n  // Viewport center, measured from left lens position.\n  var verticalLensOffset = (viewer.baselineLensDistance - device.bevelMeters - halfHeight);\n  var centerX = viewer.interLensDistance / 2 - halfWidth;\n  var centerY = -verticalLensOffset;\n  var centerZ = viewer.screenLensDistance;\n  // Tan-angles of the viewport edges, as seen through the lens.\n  var screenLeft = distortion.distort((centerX - halfWidth) / centerZ);\n  var screenTop = distortion.distort((centerY + halfHeight) / centerZ);\n  var screenRight = distortion.distort((centerX + halfWidth) / centerZ);\n  var screenBottom = distortion.distort((centerY - halfHeight) / centerZ);\n  // Compare the two sets of tan-angles and take the value closer to zero on each side.\n  var result = new Float32Array(4);\n  result[0] = Math.max(fovLeft, screenLeft);\n  result[1] = Math.min(fovTop, screenTop);\n  result[2] = Math.min(fovRight, screenRight);\n  result[3] = Math.max(fovBottom, screenBottom);\n  return result;\n};\n\n/**\n * Calculates the tan-angles from the maximum FOV for the left eye for the\n * current device and screen parameters, assuming no lenses.\n */\nDeviceInfo.prototype.getLeftEyeNoLensTanAngles = function() {\n  var viewer = this.viewer;\n  var device = this.device;\n  var distortion = this.distortion;\n\n  var result = new Float32Array(4);\n  // Tan-angles from the max FOV.\n  var fovLeft = distortion.distortInverse(Math.tan(-MathUtil.degToRad * viewer.fov));\n  var fovTop = distortion.distortInverse(Math.tan(MathUtil.degToRad * viewer.fov));\n  var fovRight = distortion.distortInverse(Math.tan(MathUtil.degToRad * viewer.fov));\n  var fovBottom = distortion.distortInverse(Math.tan(-MathUtil.degToRad * viewer.fov));\n  // Viewport size.\n  var halfWidth = device.widthMeters / 4;\n  var halfHeight = device.heightMeters / 2;\n  // Viewport center, measured from left lens position.\n  var verticalLensOffset = (viewer.baselineLensDistance - device.bevelMeters - halfHeight);\n  var centerX = viewer.interLensDistance / 2 - halfWidth;\n  var centerY = -verticalLensOffset;\n  var centerZ = viewer.screenLensDistance;\n  // Tan-angles of the viewport edges, as seen through the lens.\n  var screenLeft = (centerX - halfWidth) / centerZ;\n  var screenTop = (centerY + halfHeight) / centerZ;\n  var screenRight = (centerX + halfWidth) / centerZ;\n  var screenBottom = (centerY - halfHeight) / centerZ;\n  // Compare the two sets of tan-angles and take the value closer to zero on each side.\n  result[0] = Math.max(fovLeft, screenLeft);\n  result[1] = Math.min(fovTop, screenTop);\n  result[2] = Math.min(fovRight, screenRight);\n  result[3] = Math.max(fovBottom, screenBottom);\n  return result;\n};\n\n/**\n * Calculates the screen rectangle visible from the left eye for the\n * current device and screen parameters.\n */\nDeviceInfo.prototype.getLeftEyeVisibleScreenRect = function(undistortedFrustum) {\n  var viewer = this.viewer;\n  var device = this.device;\n\n  var dist = viewer.screenLensDistance;\n  var eyeX = (device.widthMeters - viewer.interLensDistance) / 2;\n  var eyeY = viewer.baselineLensDistance - device.bevelMeters;\n  var left = (undistortedFrustum[0] * dist + eyeX) / device.widthMeters;\n  var top = (undistortedFrustum[1] * dist + eyeY) / device.heightMeters;\n  var right = (undistortedFrustum[2] * dist + eyeX) / device.widthMeters;\n  var bottom = (undistortedFrustum[3] * dist + eyeY) / device.heightMeters;\n  return {\n    x: left,\n    y: bottom,\n    width: right - left,\n    height: top - bottom\n  };\n};\n\nDeviceInfo.prototype.getFieldOfViewLeftEye = function(opt_isUndistorted) {\n  return opt_isUndistorted ? this.getUndistortedFieldOfViewLeftEye() :\n      this.getDistortedFieldOfViewLeftEye();\n};\n\nDeviceInfo.prototype.getFieldOfViewRightEye = function(opt_isUndistorted) {\n  var fov = this.getFieldOfViewLeftEye(opt_isUndistorted);\n  return {\n    leftDegrees: fov.rightDegrees,\n    rightDegrees: fov.leftDegrees,\n    upDegrees: fov.upDegrees,\n    downDegrees: fov.downDegrees\n  };\n};\n\n/**\n * Calculates undistorted field of view for the left eye.\n */\nDeviceInfo.prototype.getUndistortedFieldOfViewLeftEye = function() {\n  var p = this.getUndistortedParams_();\n\n  return {\n    leftDegrees: MathUtil.radToDeg * Math.atan(p.outerDist),\n    rightDegrees: MathUtil.radToDeg * Math.atan(p.innerDist),\n    downDegrees: MathUtil.radToDeg * Math.atan(p.bottomDist),\n    upDegrees: MathUtil.radToDeg * Math.atan(p.topDist)\n  };\n};\n\nDeviceInfo.prototype.getUndistortedViewportLeftEye = function() {\n  var p = this.getUndistortedParams_();\n  var viewer = this.viewer;\n  var device = this.device;\n\n  // Distances stored in local variables are in tan-angle units unless otherwise\n  // noted.\n  var eyeToScreenDistance = viewer.screenLensDistance;\n  var screenWidth = device.widthMeters / eyeToScreenDistance;\n  var screenHeight = device.heightMeters / eyeToScreenDistance;\n  var xPxPerTanAngle = device.width / screenWidth;\n  var yPxPerTanAngle = device.height / screenHeight;\n\n  var x = Math.round((p.eyePosX - p.outerDist) * xPxPerTanAngle);\n  var y = Math.round((p.eyePosY - p.bottomDist) * yPxPerTanAngle);\n  return {\n    x: x,\n    y: y,\n    width: Math.round((p.eyePosX + p.innerDist) * xPxPerTanAngle) - x,\n    height: Math.round((p.eyePosY + p.topDist) * yPxPerTanAngle) - y\n  };\n};\n\nDeviceInfo.prototype.getUndistortedParams_ = function() {\n  var viewer = this.viewer;\n  var device = this.device;\n  var distortion = this.distortion;\n\n  // Most of these variables in tan-angle units.\n  var eyeToScreenDistance = viewer.screenLensDistance;\n  var halfLensDistance = viewer.interLensDistance / 2 / eyeToScreenDistance;\n  var screenWidth = device.widthMeters / eyeToScreenDistance;\n  var screenHeight = device.heightMeters / eyeToScreenDistance;\n\n  var eyePosX = screenWidth / 2 - halfLensDistance;\n  var eyePosY = (viewer.baselineLensDistance - device.bevelMeters) / eyeToScreenDistance;\n\n  var maxFov = viewer.fov;\n  var viewerMax = distortion.distortInverse(Math.tan(MathUtil.degToRad * maxFov));\n  var outerDist = Math.min(eyePosX, viewerMax);\n  var innerDist = Math.min(halfLensDistance, viewerMax);\n  var bottomDist = Math.min(eyePosY, viewerMax);\n  var topDist = Math.min(screenHeight - eyePosY, viewerMax);\n\n  return {\n    outerDist: outerDist,\n    innerDist: innerDist,\n    topDist: topDist,\n    bottomDist: bottomDist,\n    eyePosX: eyePosX,\n    eyePosY: eyePosY\n  };\n};\n\n\nfunction CardboardViewer(params) {\n  // A machine readable ID.\n  this.id = params.id;\n  // A human readable label.\n  this.label = params.label;\n\n  // Field of view in degrees (per side).\n  this.fov = params.fov;\n\n  // Distance between lens centers in meters.\n  this.interLensDistance = params.interLensDistance;\n  // Distance between viewer baseline and lens center in meters.\n  this.baselineLensDistance = params.baselineLensDistance;\n  // Screen-to-lens distance in meters.\n  this.screenLensDistance = params.screenLensDistance;\n\n  // Distortion coefficients.\n  this.distortionCoefficients = params.distortionCoefficients;\n  // Inverse distortion coefficients.\n  // TODO: Calculate these from distortionCoefficients in the future.\n  this.inverseCoefficients = params.inverseCoefficients;\n}\n\n// Export viewer information.\nDeviceInfo.Viewers = Viewers;\nmodule.exports = DeviceInfo;\n","/*\n * Copyright 2016 Google Inc. All Rights Reserved.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nvar VRDisplay = require('./base.js').VRDisplay;\nvar HMDVRDevice = require('./base.js').HMDVRDevice;\nvar PositionSensorVRDevice = require('./base.js').PositionSensorVRDevice;\n\n/**\n * Wraps a VRDisplay and exposes it as a HMDVRDevice\n */\nfunction VRDisplayHMDDevice(display) {\n  this.display = display;\n\n  this.hardwareUnitId = display.displayId;\n  this.deviceId = 'webvr-polyfill:HMD:' + display.displayId;\n  this.deviceName = display.displayName + ' (HMD)';\n}\nVRDisplayHMDDevice.prototype = new HMDVRDevice();\n\nVRDisplayHMDDevice.prototype.getEyeParameters = function(whichEye) {\n  var eyeParameters = this.display.getEyeParameters(whichEye);\n\n  return {\n    currentFieldOfView: eyeParameters.fieldOfView,\n    maximumFieldOfView: eyeParameters.fieldOfView,\n    minimumFieldOfView: eyeParameters.fieldOfView,\n    recommendedFieldOfView: eyeParameters.fieldOfView,\n    eyeTranslation: { x: eyeParameters.offset[0], y: eyeParameters.offset[1], z: eyeParameters.offset[2] },\n    renderRect: {\n      x: (whichEye == 'right') ? eyeParameters.renderWidth : 0,\n      y: 0,\n      width: eyeParameters.renderWidth,\n      height: eyeParameters.renderHeight\n    }\n  };\n};\n\nVRDisplayHMDDevice.prototype.setFieldOfView =\n    function(opt_fovLeft, opt_fovRight, opt_zNear, opt_zFar) {\n  // Not supported. getEyeParameters reports that the min, max, and recommended\n  // FoV is all the same, so no adjustment can be made.\n};\n\n// TODO: Need to hook requestFullscreen to see if a wrapped VRDisplay was passed\n// in as an option. If so we should prevent the default fullscreen behavior and\n// call VRDisplay.requestPresent instead.\n\n/**\n * Wraps a VRDisplay and exposes it as a PositionSensorVRDevice\n */\nfunction VRDisplayPositionSensorDevice(display) {\n  this.display = display;\n\n  this.hardwareUnitId = display.displayId;\n  this.deviceId = 'webvr-polyfill:PositionSensor: ' + display.displayId;\n  this.deviceName = display.displayName + ' (PositionSensor)';\n}\nVRDisplayPositionSensorDevice.prototype = new PositionSensorVRDevice();\n\nVRDisplayPositionSensorDevice.prototype.getState = function() {\n  var pose = this.display.getPose();\n  return {\n    position: pose.position ? { x: pose.position[0], y: pose.position[1], z: pose.position[2] } : null,\n    orientation: pose.orientation ? { x: pose.orientation[0], y: pose.orientation[1], z: pose.orientation[2], w: pose.orientation[3] } : null,\n    linearVelocity: null,\n    linearAcceleration: null,\n    angularVelocity: null,\n    angularAcceleration: null\n  };\n};\n\nVRDisplayPositionSensorDevice.prototype.resetState = function() {\n  return this.positionDevice.resetPose();\n};\n\n\nmodule.exports.VRDisplayHMDDevice = VRDisplayHMDDevice;\nmodule.exports.VRDisplayPositionSensorDevice = VRDisplayPositionSensorDevice;\n\n","/**\n * TODO(smus): Implement coefficient inversion.\n */\nfunction Distortion(coefficients) {\n  this.coefficients = coefficients;\n}\n\n/**\n * Calculates the inverse distortion for a radius.\n * </p><p>\n * Allows to compute the original undistorted radius from a distorted one.\n * See also getApproximateInverseDistortion() for a faster but potentially\n * less accurate method.\n *\n * @param {Number} radius Distorted radius from the lens center in tan-angle units.\n * @return {Number} The undistorted radius in tan-angle units.\n */\nDistortion.prototype.distortInverse = function(radius) {\n  // Secant method.\n  var r0 = 0;\n  var r1 = 1;\n  var dr0 = radius - this.distort(r0);\n  while (Math.abs(r1 - r0) > 0.0001 /** 0.1mm */) {\n    var dr1 = radius - this.distort(r1);\n    var r2 = r1 - dr1 * ((r1 - r0) / (dr1 - dr0));\n    r0 = r1;\n    r1 = r2;\n    dr0 = dr1;\n  }\n  return r1;\n};\n\n/**\n * Distorts a radius by its distortion factor from the center of the lenses.\n *\n * @param {Number} radius Radius from the lens center in tan-angle units.\n * @return {Number} The distorted radius in tan-angle units.\n */\nDistortion.prototype.distort = function(radius) {\n  var r2 = radius * radius;\n  var ret = 0;\n  for (var i = 0; i < this.coefficients.length; i++) {\n    ret = r2 * (ret + this.coefficients[i]);\n  }\n  return (ret + 1) * radius;\n};\n\nmodule.exports = Distortion;\n","/*\n * Copyright 2015 Google Inc. All Rights Reserved.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n// Offline cache of the DPDB, to be used until we load the online one (and\n// as a fallback in case we can't load the online one).\nvar DPDB_CACHE = require('./dpdb.json');\nvar Util = require('../util.js');\n\n// Online DPDB URL.\nvar ONLINE_DPDB_URL =\n  'https://dpdb.webvr.rocks/dpdb.json';\n\n/**\n * Calculates device parameters based on the DPDB (Device Parameter Database).\n * Initially, uses the cached DPDB values.\n *\n * If fetchOnline == true, then this object tries to fetch the online version\n * of the DPDB and updates the device info if a better match is found.\n * Calls the onDeviceParamsUpdated callback when there is an update to the\n * device information.\n */\nfunction Dpdb(fetchOnline, onDeviceParamsUpdated) {\n  // Start with the offline DPDB cache while we are loading the real one.\n  this.dpdb = DPDB_CACHE;\n\n  // Calculate device params based on the offline version of the DPDB.\n  this.recalculateDeviceParams_();\n\n  // XHR to fetch online DPDB file, if requested.\n  if (fetchOnline) {\n    // Set the callback.\n    this.onDeviceParamsUpdated = onDeviceParamsUpdated;\n\n    var xhr = new XMLHttpRequest();\n    var obj = this;\n    xhr.open('GET', ONLINE_DPDB_URL, true);\n    xhr.addEventListener('load', function() {\n      obj.loading = false;\n      if (xhr.status >= 200 && xhr.status <= 299) {\n        // Success.\n        obj.dpdb = JSON.parse(xhr.response);\n        obj.recalculateDeviceParams_();\n      } else {\n        // Error loading the DPDB.\n        console.error('Error loading online DPDB!');\n      }\n    });\n    xhr.send();\n  }\n}\n\n// Returns the current device parameters.\nDpdb.prototype.getDeviceParams = function() {\n  return this.deviceParams;\n};\n\n// Recalculates this device's parameters based on the DPDB.\nDpdb.prototype.recalculateDeviceParams_ = function() {\n  var newDeviceParams = this.calcDeviceParams_();\n  if (newDeviceParams) {\n    this.deviceParams = newDeviceParams;\n    // Invoke callback, if it is set.\n    if (this.onDeviceParamsUpdated) {\n      this.onDeviceParamsUpdated(this.deviceParams);\n    }\n  } else {\n    console.error('Failed to recalculate device parameters.');\n  }\n};\n\n// Returns a DeviceParams object that represents the best guess as to this\n// device's parameters. Can return null if the device does not match any\n// known devices.\nDpdb.prototype.calcDeviceParams_ = function() {\n  var db = this.dpdb; // shorthand\n  if (!db) {\n    console.error('DPDB not available.');\n    return null;\n  }\n  if (db.format != 1) {\n    console.error('DPDB has unexpected format version.');\n    return null;\n  }\n  if (!db.devices || !db.devices.length) {\n    console.error('DPDB does not have a devices section.');\n    return null;\n  }\n\n  // Get the actual user agent and screen dimensions in pixels.\n  var userAgent = navigator.userAgent || navigator.vendor || window.opera;\n  var width = Util.getScreenWidth();\n  var height = Util.getScreenHeight();\n\n  if (!db.devices) {\n    console.error('DPDB has no devices section.');\n    return null;\n  }\n\n  for (var i = 0; i < db.devices.length; i++) {\n    var device = db.devices[i];\n    if (!device.rules) {\n      console.warn('Device[' + i + '] has no rules section.');\n      continue;\n    }\n\n    if (device.type != 'ios' && device.type != 'android') {\n      console.warn('Device[' + i + '] has invalid type.');\n      continue;\n    }\n\n    // See if this device is of the appropriate type.\n    if (Util.isIOS() != (device.type == 'ios')) continue;\n\n    // See if this device matches any of the rules:\n    var matched = false;\n    for (var j = 0; j < device.rules.length; j++) {\n      var rule = device.rules[j];\n      if (this.matchRule_(rule, userAgent, width, height)) {\n        matched = true;\n        break;\n      }\n    }\n    if (!matched) continue;\n\n    // device.dpi might be an array of [ xdpi, ydpi] or just a scalar.\n    var xdpi = device.dpi[0] || device.dpi;\n    var ydpi = device.dpi[1] || device.dpi;\n\n    return new DeviceParams({ xdpi: xdpi, ydpi: ydpi, bevelMm: device.bw });\n  }\n\n  console.warn('No DPDB device match.');\n  return null;\n};\n\nDpdb.prototype.matchRule_ = function(rule, ua, screenWidth, screenHeight) {\n  // We can only match 'ua' and 'res' rules, not other types like 'mdmh'\n  // (which are meant for native platforms).\n  if (!rule.ua && !rule.res) return false;\n\n  // If our user agent string doesn't contain the indicated user agent string,\n  // the match fails.\n  if (rule.ua && ua.indexOf(rule.ua) < 0) return false;\n\n  // If the rule specifies screen dimensions that don't correspond to ours,\n  // the match fails.\n  if (rule.res) {\n    if (!rule.res[0] || !rule.res[1]) return false;\n    var resX = rule.res[0];\n    var resY = rule.res[1];\n    // Compare min and max so as to make the order not matter, i.e., it should\n    // be true that 640x480 == 480x640.\n    if (Math.min(screenWidth, screenHeight) != Math.min(resX, resY) ||\n        (Math.max(screenWidth, screenHeight) != Math.max(resX, resY))) {\n      return false;\n    }\n  }\n\n  return true;\n}\n\nfunction DeviceParams(params) {\n  this.xdpi = params.xdpi;\n  this.ydpi = params.ydpi;\n  this.bevelMm = params.bevelMm;\n}\n\nmodule.exports = Dpdb;\n","/*\n * Copyright 2015 Google Inc. All Rights Reserved.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nvar Util = require('./util.js');\nvar WebVRPolyfill = require('./webvr-polyfill.js').WebVRPolyfill;\n\n// Initialize a WebVRConfig just in case.\nwindow.WebVRConfig = Util.extend({\n  // Forces availability of VR mode, even for non-mobile devices.\n  FORCE_ENABLE_VR: false,\n\n  // Complementary filter coefficient. 0 for accelerometer, 1 for gyro.\n  K_FILTER: 0.98,\n\n  // How far into the future to predict during fast motion (in seconds).\n  PREDICTION_TIME_S: 0.040,\n\n  // Flag to enable touch panner. In case you have your own touch controls.\n  TOUCH_PANNER_DISABLED: true,\n\n  // Flag to disabled the UI in VR Mode.\n  CARDBOARD_UI_DISABLED: false, // Default: false\n\n  // Flag to disable the instructions to rotate your device.\n  ROTATE_INSTRUCTIONS_DISABLED: false, // Default: false.\n\n  // Enable yaw panning only, disabling roll and pitch. This can be useful\n  // for panoramas with nothing interesting above or below.\n  YAW_ONLY: false,\n\n  // To disable keyboard and mouse controls, if you want to use your own\n  // implementation.\n  MOUSE_KEYBOARD_CONTROLS_DISABLED: false,\n\n  // Prevent the polyfill from initializing immediately. Requires the app\n  // to call InitializeWebVRPolyfill() before it can be used.\n  DEFER_INITIALIZATION: false,\n\n  // Enable the deprecated version of the API (navigator.getVRDevices).\n  ENABLE_DEPRECATED_API: false,\n\n  // Scales the recommended buffer size reported by WebVR, which can improve\n  // performance.\n  // UPDATE(2016-05-03): Setting this to 0.5 by default since 1.0 does not\n  // perform well on many mobile devices.\n  BUFFER_SCALE: 0.5,\n\n  // Allow VRDisplay.submitFrame to change gl bindings, which is more\n  // efficient if the application code will re-bind its resources on the\n  // next frame anyway. This has been seen to cause rendering glitches with\n  // THREE.js.\n  // Dirty bindings include: gl.FRAMEBUFFER_BINDING, gl.CURRENT_PROGRAM,\n  // gl.ARRAY_BUFFER_BINDING, gl.ELEMENT_ARRAY_BUFFER_BINDING,\n  // and gl.TEXTURE_BINDING_2D for texture unit 0.\n  DIRTY_SUBMIT_FRAME_BINDINGS: false,\n\n  // When set to true, this will cause a polyfilled VRDisplay to always be\n  // appended to the list returned by navigator.getVRDisplays(), even if that\n  // list includes a native VRDisplay.\n  ALWAYS_APPEND_POLYFILL_DISPLAY: false,\n\n  // There are versions of Chrome (M58-M60?) where the native WebVR API exists,\n  // and instead of returning 0 VR displays when none are detected,\n  // `navigator.getVRDisplays()`'s promise never resolves. This results\n  // in the polyfill hanging and not being able to provide fallback\n  // displays, so set a timeout in milliseconds to stop waiting for a response\n  // and just use polyfilled displays.\n  // https://bugs.chromium.org/p/chromium/issues/detail?id=727969\n  GET_VR_DISPLAYS_TIMEOUT: 1000,\n}, window.WebVRConfig);\n\nif (!window.WebVRConfig.DEFER_INITIALIZATION) {\n  new WebVRPolyfill();\n} else {\n  window.InitializeWebVRPolyfill = function() {\n    new WebVRPolyfill();\n  }\n}\n\nwindow.WebVRPolyfill = WebVRPolyfill;\n","/*\n * Copyright 2016 Google Inc. All Rights Reserved.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nvar MathUtil = window.MathUtil || {};\n\nMathUtil.degToRad = Math.PI / 180;\nMathUtil.radToDeg = 180 / Math.PI;\n\n// Some minimal math functionality borrowed from THREE.Math and stripped down\n// for the purposes of this library.\n\n\nMathUtil.Vector2 = function ( x, y ) {\n  this.x = x || 0;\n  this.y = y || 0;\n};\n\nMathUtil.Vector2.prototype = {\n  constructor: MathUtil.Vector2,\n\n  set: function ( x, y ) {\n    this.x = x;\n    this.y = y;\n\n    return this;\n  },\n\n  copy: function ( v ) {\n    this.x = v.x;\n    this.y = v.y;\n\n    return this;\n  },\n\n  subVectors: function ( a, b ) {\n    this.x = a.x - b.x;\n    this.y = a.y - b.y;\n\n    return this;\n  },\n};\n\nMathUtil.Vector3 = function ( x, y, z ) {\n  this.x = x || 0;\n  this.y = y || 0;\n  this.z = z || 0;\n};\n\nMathUtil.Vector3.prototype = {\n  constructor: MathUtil.Vector3,\n\n  set: function ( x, y, z ) {\n    this.x = x;\n    this.y = y;\n    this.z = z;\n\n    return this;\n  },\n\n  copy: function ( v ) {\n    this.x = v.x;\n    this.y = v.y;\n    this.z = v.z;\n\n    return this;\n  },\n\n  length: function () {\n    return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z );\n  },\n\n  normalize: function () {\n    var scalar = this.length();\n\n    if ( scalar !== 0 ) {\n      var invScalar = 1 / scalar;\n\n      this.multiplyScalar(invScalar);\n    } else {\n      this.x = 0;\n      this.y = 0;\n      this.z = 0;\n    }\n\n    return this;\n  },\n\n  multiplyScalar: function ( scalar ) {\n    this.x *= scalar;\n    this.y *= scalar;\n    this.z *= scalar;\n  },\n\n  applyQuaternion: function ( q ) {\n    var x = this.x;\n    var y = this.y;\n    var z = this.z;\n\n    var qx = q.x;\n    var qy = q.y;\n    var qz = q.z;\n    var qw = q.w;\n\n    // calculate quat * vector\n    var ix =  qw * x + qy * z - qz * y;\n    var iy =  qw * y + qz * x - qx * z;\n    var iz =  qw * z + qx * y - qy * x;\n    var iw = - qx * x - qy * y - qz * z;\n\n    // calculate result * inverse quat\n    this.x = ix * qw + iw * - qx + iy * - qz - iz * - qy;\n    this.y = iy * qw + iw * - qy + iz * - qx - ix * - qz;\n    this.z = iz * qw + iw * - qz + ix * - qy - iy * - qx;\n\n    return this;\n  },\n\n  dot: function ( v ) {\n    return this.x * v.x + this.y * v.y + this.z * v.z;\n  },\n\n  crossVectors: function ( a, b ) {\n    var ax = a.x, ay = a.y, az = a.z;\n    var bx = b.x, by = b.y, bz = b.z;\n\n    this.x = ay * bz - az * by;\n    this.y = az * bx - ax * bz;\n    this.z = ax * by - ay * bx;\n\n    return this;\n  },\n};\n\nMathUtil.Quaternion = function ( x, y, z, w ) {\n  this.x = x || 0;\n  this.y = y || 0;\n  this.z = z || 0;\n  this.w = ( w !== undefined ) ? w : 1;\n};\n\nMathUtil.Quaternion.prototype = {\n  constructor: MathUtil.Quaternion,\n\n  set: function ( x, y, z, w ) {\n    this.x = x;\n    this.y = y;\n    this.z = z;\n    this.w = w;\n\n    return this;\n  },\n\n  copy: function ( quaternion ) {\n    this.x = quaternion.x;\n    this.y = quaternion.y;\n    this.z = quaternion.z;\n    this.w = quaternion.w;\n\n    return this;\n  },\n\n  setFromEulerXYZ: function( x, y, z ) {\n    var c1 = Math.cos( x / 2 );\n    var c2 = Math.cos( y / 2 );\n    var c3 = Math.cos( z / 2 );\n    var s1 = Math.sin( x / 2 );\n    var s2 = Math.sin( y / 2 );\n    var s3 = Math.sin( z / 2 );\n\n    this.x = s1 * c2 * c3 + c1 * s2 * s3;\n    this.y = c1 * s2 * c3 - s1 * c2 * s3;\n    this.z = c1 * c2 * s3 + s1 * s2 * c3;\n    this.w = c1 * c2 * c3 - s1 * s2 * s3;\n\n    return this;\n  },\n\n  setFromEulerYXZ: function( x, y, z ) {\n    var c1 = Math.cos( x / 2 );\n    var c2 = Math.cos( y / 2 );\n    var c3 = Math.cos( z / 2 );\n    var s1 = Math.sin( x / 2 );\n    var s2 = Math.sin( y / 2 );\n    var s3 = Math.sin( z / 2 );\n\n    this.x = s1 * c2 * c3 + c1 * s2 * s3;\n    this.y = c1 * s2 * c3 - s1 * c2 * s3;\n    this.z = c1 * c2 * s3 - s1 * s2 * c3;\n    this.w = c1 * c2 * c3 + s1 * s2 * s3;\n\n    return this;\n  },\n\n  setFromAxisAngle: function ( axis, angle ) {\n    // http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/index.htm\n    // assumes axis is normalized\n\n    var halfAngle = angle / 2, s = Math.sin( halfAngle );\n\n    this.x = axis.x * s;\n    this.y = axis.y * s;\n    this.z = axis.z * s;\n    this.w = Math.cos( halfAngle );\n\n    return this;\n  },\n\n  multiply: function ( q ) {\n    return this.multiplyQuaternions( this, q );\n  },\n\n  multiplyQuaternions: function ( a, b ) {\n    // from http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/code/index.htm\n\n    var qax = a.x, qay = a.y, qaz = a.z, qaw = a.w;\n    var qbx = b.x, qby = b.y, qbz = b.z, qbw = b.w;\n\n    this.x = qax * qbw + qaw * qbx + qay * qbz - qaz * qby;\n    this.y = qay * qbw + qaw * qby + qaz * qbx - qax * qbz;\n    this.z = qaz * qbw + qaw * qbz + qax * qby - qay * qbx;\n    this.w = qaw * qbw - qax * qbx - qay * qby - qaz * qbz;\n\n    return this;\n  },\n\n  inverse: function () {\n    this.x *= -1;\n    this.y *= -1;\n    this.z *= -1;\n\n    this.normalize();\n\n    return this;\n  },\n\n  normalize: function () {\n    var l = Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w );\n\n    if ( l === 0 ) {\n      this.x = 0;\n      this.y = 0;\n      this.z = 0;\n      this.w = 1;\n    } else {\n      l = 1 / l;\n\n      this.x = this.x * l;\n      this.y = this.y * l;\n      this.z = this.z * l;\n      this.w = this.w * l;\n    }\n\n    return this;\n  },\n\n  slerp: function ( qb, t ) {\n    if ( t === 0 ) return this;\n    if ( t === 1 ) return this.copy( qb );\n\n    var x = this.x, y = this.y, z = this.z, w = this.w;\n\n    // http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/slerp/\n\n    var cosHalfTheta = w * qb.w + x * qb.x + y * qb.y + z * qb.z;\n\n    if ( cosHalfTheta < 0 ) {\n      this.w = - qb.w;\n      this.x = - qb.x;\n      this.y = - qb.y;\n      this.z = - qb.z;\n\n      cosHalfTheta = - cosHalfTheta;\n    } else {\n      this.copy( qb );\n    }\n\n    if ( cosHalfTheta >= 1.0 ) {\n      this.w = w;\n      this.x = x;\n      this.y = y;\n      this.z = z;\n\n      return this;\n    }\n\n    var halfTheta = Math.acos( cosHalfTheta );\n    var sinHalfTheta = Math.sqrt( 1.0 - cosHalfTheta * cosHalfTheta );\n\n    if ( Math.abs( sinHalfTheta ) < 0.001 ) {\n      this.w = 0.5 * ( w + this.w );\n      this.x = 0.5 * ( x + this.x );\n      this.y = 0.5 * ( y + this.y );\n      this.z = 0.5 * ( z + this.z );\n\n      return this;\n    }\n\n    var ratioA = Math.sin( ( 1 - t ) * halfTheta ) / sinHalfTheta,\n    ratioB = Math.sin( t * halfTheta ) / sinHalfTheta;\n\n    this.w = ( w * ratioA + this.w * ratioB );\n    this.x = ( x * ratioA + this.x * ratioB );\n    this.y = ( y * ratioA + this.y * ratioB );\n    this.z = ( z * ratioA + this.z * ratioB );\n\n    return this;\n  },\n\n  setFromUnitVectors: function () {\n    // http://lolengine.net/blog/2014/02/24/quaternion-from-two-vectors-final\n    // assumes direction vectors vFrom and vTo are normalized\n\n    var v1, r;\n    var EPS = 0.000001;\n\n    return function ( vFrom, vTo ) {\n      if ( v1 === undefined ) v1 = new MathUtil.Vector3();\n\n      r = vFrom.dot( vTo ) + 1;\n\n      if ( r < EPS ) {\n        r = 0;\n\n        if ( Math.abs( vFrom.x ) > Math.abs( vFrom.z ) ) {\n          v1.set( - vFrom.y, vFrom.x, 0 );\n        } else {\n          v1.set( 0, - vFrom.z, vFrom.y );\n        }\n      } else {\n        v1.crossVectors( vFrom, vTo );\n      }\n\n      this.x = v1.x;\n      this.y = v1.y;\n      this.z = v1.z;\n      this.w = r;\n\n      this.normalize();\n\n      return this;\n    }\n  }(),\n};\n\nmodule.exports = MathUtil;\n","/*\n * Copyright 2016 Google Inc. All Rights Reserved.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nvar VRDisplay = require('./base.js').VRDisplay;\nvar MathUtil = require('./math-util.js');\nvar Util = require('./util.js');\n\n// How much to rotate per key stroke.\nvar KEY_SPEED = 0.15;\nvar KEY_ANIMATION_DURATION = 80;\n\n// How much to rotate for mouse events.\nvar MOUSE_SPEED_X = 0.5;\nvar MOUSE_SPEED_Y = 0.3;\n\n/**\n * VRDisplay based on mouse and keyboard input. Designed for desktops/laptops\n * where orientation events aren't supported. Cannot present.\n */\nfunction MouseKeyboardVRDisplay() {\n  this.displayName = 'Mouse and Keyboard VRDisplay (webvr-polyfill)';\n\n  this.capabilities.hasOrientation = true;\n\n  // Attach to mouse and keyboard events.\n  window.addEventListener('keydown', this.onKeyDown_.bind(this));\n  window.addEventListener('mousemove', this.onMouseMove_.bind(this));\n  window.addEventListener('mousedown', this.onMouseDown_.bind(this));\n  window.addEventListener('mouseup', this.onMouseUp_.bind(this));\n\n  // \"Private\" members.\n  this.phi_ = 0;\n  this.theta_ = 0;\n\n  // Variables for keyboard-based rotation animation.\n  this.targetAngle_ = null;\n  this.angleAnimation_ = null;\n\n  // State variables for calculations.\n  this.orientation_ = new MathUtil.Quaternion();\n\n  // Variables for mouse-based rotation.\n  this.rotateStart_ = new MathUtil.Vector2();\n  this.rotateEnd_ = new MathUtil.Vector2();\n  this.rotateDelta_ = new MathUtil.Vector2();\n  this.isDragging_ = false;\n\n  this.orientationOut_ = new Float32Array(4);\n}\nMouseKeyboardVRDisplay.prototype = new VRDisplay();\n\nMouseKeyboardVRDisplay.prototype.getImmediatePose = function() {\n  this.orientation_.setFromEulerYXZ(this.phi_, this.theta_, 0);\n\n  this.orientationOut_[0] = this.orientation_.x;\n  this.orientationOut_[1] = this.orientation_.y;\n  this.orientationOut_[2] = this.orientation_.z;\n  this.orientationOut_[3] = this.orientation_.w;\n\n  return {\n    position: null,\n    orientation: this.orientationOut_,\n    linearVelocity: null,\n    linearAcceleration: null,\n    angularVelocity: null,\n    angularAcceleration: null\n  };\n};\n\nMouseKeyboardVRDisplay.prototype.onKeyDown_ = function(e) {\n  // Track WASD and arrow keys.\n  if (e.keyCode == 38) { // Up key.\n    this.animatePhi_(this.phi_ + KEY_SPEED);\n  } else if (e.keyCode == 39) { // Right key.\n    this.animateTheta_(this.theta_ - KEY_SPEED);\n  } else if (e.keyCode == 40) { // Down key.\n    this.animatePhi_(this.phi_ - KEY_SPEED);\n  } else if (e.keyCode == 37) { // Left key.\n    this.animateTheta_(this.theta_ + KEY_SPEED);\n  }\n};\n\nMouseKeyboardVRDisplay.prototype.animateTheta_ = function(targetAngle) {\n  this.animateKeyTransitions_('theta_', targetAngle);\n};\n\nMouseKeyboardVRDisplay.prototype.animatePhi_ = function(targetAngle) {\n  // Prevent looking too far up or down.\n  targetAngle = Util.clamp(targetAngle, -Math.PI/2, Math.PI/2);\n  this.animateKeyTransitions_('phi_', targetAngle);\n};\n\n/**\n * Start an animation to transition an angle from one value to another.\n */\nMouseKeyboardVRDisplay.prototype.animateKeyTransitions_ = function(angleName, targetAngle) {\n  // If an animation is currently running, cancel it.\n  if (this.angleAnimation_) {\n    cancelAnimationFrame(this.angleAnimation_);\n  }\n  var startAngle = this[angleName];\n  var startTime = new Date();\n  // Set up an interval timer to perform the animation.\n  this.angleAnimation_ = requestAnimationFrame(function animate() {\n    // Once we're finished the animation, we're done.\n    var elapsed = new Date() - startTime;\n    if (elapsed >= KEY_ANIMATION_DURATION) {\n      this[angleName] = targetAngle;\n      cancelAnimationFrame(this.angleAnimation_);\n      return;\n    }\n    // loop with requestAnimationFrame\n    this.angleAnimation_ = requestAnimationFrame(animate.bind(this))\n    // Linearly interpolate the angle some amount.\n    var percent = elapsed / KEY_ANIMATION_DURATION;\n    this[angleName] = startAngle + (targetAngle - startAngle) * percent;\n  }.bind(this));\n};\n\nMouseKeyboardVRDisplay.prototype.onMouseDown_ = function(e) {\n  this.rotateStart_.set(e.clientX, e.clientY);\n  this.isDragging_ = true;\n};\n\n// Very similar to https://gist.github.com/mrflix/8351020\nMouseKeyboardVRDisplay.prototype.onMouseMove_ = function(e) {\n  if (!this.isDragging_ && !this.isPointerLocked_()) {\n    return;\n  }\n  // Support pointer lock API.\n  if (this.isPointerLocked_()) {\n    var movementX = e.movementX || e.mozMovementX || 0;\n    var movementY = e.movementY || e.mozMovementY || 0;\n    this.rotateEnd_.set(this.rotateStart_.x - movementX, this.rotateStart_.y - movementY);\n  } else {\n    this.rotateEnd_.set(e.clientX, e.clientY);\n  }\n  // Calculate how much we moved in mouse space.\n  this.rotateDelta_.subVectors(this.rotateEnd_, this.rotateStart_);\n  this.rotateStart_.copy(this.rotateEnd_);\n\n  // Keep track of the cumulative euler angles.\n  this.phi_ += 2 * Math.PI * this.rotateDelta_.y / screen.height * MOUSE_SPEED_Y;\n  this.theta_ += 2 * Math.PI * this.rotateDelta_.x / screen.width * MOUSE_SPEED_X;\n\n  // Prevent looking too far up or down.\n  this.phi_ = Util.clamp(this.phi_, -Math.PI/2, Math.PI/2);\n};\n\nMouseKeyboardVRDisplay.prototype.onMouseUp_ = function(e) {\n  this.isDragging_ = false;\n};\n\nMouseKeyboardVRDisplay.prototype.isPointerLocked_ = function() {\n  var el = document.pointerLockElement || document.mozPointerLockElement ||\n      document.webkitPointerLockElement;\n  return el !== undefined;\n};\n\nMouseKeyboardVRDisplay.prototype.resetPose = function() {\n  this.phi_ = 0;\n  this.theta_ = 0;\n};\n\nmodule.exports = MouseKeyboardVRDisplay;\n","// This is the entry point if requiring/importing via node, or\r\n// a build tool that uses package.json entry (like browserify, webpack).\r\n// If running in node with a window mock available, globalize its members\r\n// if needed. Otherwise, just continue to `./main`\r\nif (typeof global !== 'undefined' && global.window) {\r\n  global.document = global.window.document;\r\n  global.navigator = global.window.navigator;\r\n}\r\n\r\nrequire('./main');\r\n","/*\n * Copyright 2015 Google Inc. All Rights Reserved.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nvar Util = require('./util.js');\n\nfunction RotateInstructions() {\n  this.loadIcon_();\n\n  var overlay = document.createElement('div');\n  var s = overlay.style;\n  s.position = 'fixed';\n  s.top = 0;\n  s.right = 0;\n  s.bottom = 0;\n  s.left = 0;\n  s.backgroundColor = 'gray';\n  s.fontFamily = 'sans-serif';\n  // Force this to be above the fullscreen canvas, which is at zIndex: 999999.\n  s.zIndex = 1000000;\n\n  var img = document.createElement('img');\n  img.src = this.icon;\n  var s = img.style;\n  s.marginLeft = '25%';\n  s.marginTop = '25%';\n  s.width = '50%';\n  overlay.appendChild(img);\n\n  var text = document.createElement('div');\n  var s = text.style;\n  s.textAlign = 'center';\n  s.fontSize = '16px';\n  s.lineHeight = '24px';\n  s.margin = '24px 25%';\n  s.width = '50%';\n  text.innerHTML = 'Place your phone into your Cardboard viewer.';\n  overlay.appendChild(text);\n\n  var snackbar = document.createElement('div');\n  var s = snackbar.style;\n  s.backgroundColor = '#CFD8DC';\n  s.position = 'fixed';\n  s.bottom = 0;\n  s.width = '100%';\n  s.height = '48px';\n  s.padding = '14px 24px';\n  s.boxSizing = 'border-box';\n  s.color = '#656A6B';\n  overlay.appendChild(snackbar);\n\n  var snackbarText = document.createElement('div');\n  snackbarText.style.float = 'left';\n  snackbarText.innerHTML = 'No Cardboard viewer?';\n\n  var snackbarButton = document.createElement('a');\n  snackbarButton.href = 'https://www.google.com/get/cardboard/get-cardboard/';\n  snackbarButton.innerHTML = 'get one';\n  snackbarButton.target = '_blank';\n  var s = snackbarButton.style;\n  s.float = 'right';\n  s.fontWeight = 600;\n  s.textTransform = 'uppercase';\n  s.borderLeft = '1px solid gray';\n  s.paddingLeft = '24px';\n  s.textDecoration = 'none';\n  s.color = '#656A6B';\n\n  snackbar.appendChild(snackbarText);\n  snackbar.appendChild(snackbarButton);\n\n  this.overlay = overlay;\n  this.text = text;\n\n  this.hide();\n}\n\nRotateInstructions.prototype.show = function(parent) {\n  if (!parent && !this.overlay.parentElement) {\n    document.body.appendChild(this.overlay);\n  } else if (parent) {\n    if (this.overlay.parentElement && this.overlay.parentElement != parent)\n      this.overlay.parentElement.removeChild(this.overlay);\n\n    parent.appendChild(this.overlay);\n  }\n\n  this.overlay.style.display = 'block';\n\n  var img = this.overlay.querySelector('img');\n  var s = img.style;\n\n  if (Util.isLandscapeMode()) {\n    s.width = '20%';\n    s.marginLeft = '40%';\n    s.marginTop = '3%';\n  } else {\n    s.width = '50%';\n    s.marginLeft = '25%';\n    s.marginTop = '25%';\n  }\n};\n\nRotateInstructions.prototype.hide = function() {\n  this.overlay.style.display = 'none';\n};\n\nRotateInstructions.prototype.showTemporarily = function(ms, parent) {\n  this.show(parent);\n  this.timer = setTimeout(this.hide.bind(this), ms);\n};\n\nRotateInstructions.prototype.disableShowTemporarily = function() {\n  clearTimeout(this.timer);\n};\n\nRotateInstructions.prototype.update = function() {\n  this.disableShowTemporarily();\n  // In portrait VR mode, tell the user to rotate to landscape. Otherwise, hide\n  // the instructions.\n  if (!Util.isLandscapeMode() && Util.isMobile()) {\n    this.show();\n  } else {\n    this.hide();\n  }\n};\n\nRotateInstructions.prototype.loadIcon_ = function() {\n  // Encoded asset_src/rotate-instructions.svg\n  this.icon = Util.base64('image/svg+xml', '<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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All Rights Reserved.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nvar SensorSample = require('./sensor-sample.js');\nvar MathUtil = require('../math-util.js');\nvar Util = require('../util.js');\n\n/**\n * An implementation of a simple complementary filter, which fuses gyroscope and\n * accelerometer data from the 'devicemotion' event.\n *\n * Accelerometer data is very noisy, but stable over the long term.\n * Gyroscope data is smooth, but tends to drift over the long term.\n *\n * This fusion is relatively simple:\n * 1. Get orientation estimates from accelerometer by applying a low-pass filter\n *    on that data.\n * 2. Get orientation estimates from gyroscope by integrating over time.\n * 3. Combine the two estimates, weighing (1) in the long term, but (2) for the\n *    short term.\n */\nfunction ComplementaryFilter(kFilter) {\n  this.kFilter = kFilter;\n\n  // Raw sensor measurements.\n  this.currentAccelMeasurement = new SensorSample();\n  this.currentGyroMeasurement = new SensorSample();\n  this.previousGyroMeasurement = new SensorSample();\n\n  // Set default look direction to be in the correct direction.\n  if (Util.isIOS()) {\n    this.filterQ = new MathUtil.Quaternion(-1, 0, 0, 1);\n  } else {\n    this.filterQ = new MathUtil.Quaternion(1, 0, 0, 1);\n  }\n  this.previousFilterQ = new MathUtil.Quaternion();\n  this.previousFilterQ.copy(this.filterQ);\n\n  // Orientation based on the accelerometer.\n  this.accelQ = new MathUtil.Quaternion();\n  // Whether or not the orientation has been initialized.\n  this.isOrientationInitialized = false;\n  // Running estimate of gravity based on the current orientation.\n  this.estimatedGravity = new MathUtil.Vector3();\n  // Measured gravity based on accelerometer.\n  this.measuredGravity = new MathUtil.Vector3();\n\n  // Debug only quaternion of gyro-based orientation.\n  this.gyroIntegralQ = new MathUtil.Quaternion();\n}\n\nComplementaryFilter.prototype.addAccelMeasurement = function(vector, timestampS) {\n  this.currentAccelMeasurement.set(vector, timestampS);\n};\n\nComplementaryFilter.prototype.addGyroMeasurement = function(vector, timestampS) {\n  this.currentGyroMeasurement.set(vector, timestampS);\n\n  var deltaT = timestampS - this.previousGyroMeasurement.timestampS;\n  if (Util.isTimestampDeltaValid(deltaT)) {\n    this.run_();\n  }\n\n  this.previousGyroMeasurement.copy(this.currentGyroMeasurement);\n};\n\nComplementaryFilter.prototype.run_ = function() {\n\n  if (!this.isOrientationInitialized) {\n    this.accelQ = this.accelToQuaternion_(this.currentAccelMeasurement.sample);\n    this.previousFilterQ.copy(this.accelQ);\n    this.isOrientationInitialized = true;\n    return;\n  }\n\n  var deltaT = this.currentGyroMeasurement.timestampS -\n      this.previousGyroMeasurement.timestampS;\n\n  // Convert gyro rotation vector to a quaternion delta.\n  var gyroDeltaQ = this.gyroToQuaternionDelta_(this.currentGyroMeasurement.sample, deltaT);\n  this.gyroIntegralQ.multiply(gyroDeltaQ);\n\n  // filter_1 = K * (filter_0 + gyro * dT) + (1 - K) * accel.\n  this.filterQ.copy(this.previousFilterQ);\n  this.filterQ.multiply(gyroDeltaQ);\n\n  // Calculate the delta between the current estimated gravity and the real\n  // gravity vector from accelerometer.\n  var invFilterQ = new MathUtil.Quaternion();\n  invFilterQ.copy(this.filterQ);\n  invFilterQ.inverse();\n\n  this.estimatedGravity.set(0, 0, -1);\n  this.estimatedGravity.applyQuaternion(invFilterQ);\n  this.estimatedGravity.normalize();\n\n  this.measuredGravity.copy(this.currentAccelMeasurement.sample);\n  this.measuredGravity.normalize();\n\n  // Compare estimated gravity with measured gravity, get the delta quaternion\n  // between the two.\n  var deltaQ = new MathUtil.Quaternion();\n  deltaQ.setFromUnitVectors(this.estimatedGravity, this.measuredGravity);\n  deltaQ.inverse();\n\n  if (Util.isDebug()) {\n    console.log('Delta: %d deg, G_est: (%s, %s, %s), G_meas: (%s, %s, %s)',\n                MathUtil.radToDeg * Util.getQuaternionAngle(deltaQ),\n                (this.estimatedGravity.x).toFixed(1),\n                (this.estimatedGravity.y).toFixed(1),\n                (this.estimatedGravity.z).toFixed(1),\n                (this.measuredGravity.x).toFixed(1),\n                (this.measuredGravity.y).toFixed(1),\n                (this.measuredGravity.z).toFixed(1));\n  }\n\n  // Calculate the SLERP target: current orientation plus the measured-estimated\n  // quaternion delta.\n  var targetQ = new MathUtil.Quaternion();\n  targetQ.copy(this.filterQ);\n  targetQ.multiply(deltaQ);\n\n  // SLERP factor: 0 is pure gyro, 1 is pure accel.\n  this.filterQ.slerp(targetQ, 1 - this.kFilter);\n\n  this.previousFilterQ.copy(this.filterQ);\n};\n\nComplementaryFilter.prototype.getOrientation = function() {\n  return this.filterQ;\n};\n\nComplementaryFilter.prototype.accelToQuaternion_ = function(accel) {\n  var normAccel = new MathUtil.Vector3();\n  normAccel.copy(accel);\n  normAccel.normalize();\n  var quat = new MathUtil.Quaternion();\n  quat.setFromUnitVectors(new MathUtil.Vector3(0, 0, -1), normAccel);\n  quat.inverse();\n  return quat;\n};\n\nComplementaryFilter.prototype.gyroToQuaternionDelta_ = function(gyro, dt) {\n  // Extract axis and angle from the gyroscope data.\n  var quat = new MathUtil.Quaternion();\n  var axis = new MathUtil.Vector3();\n  axis.copy(gyro);\n  axis.normalize();\n  quat.setFromAxisAngle(axis, gyro.length() * dt);\n  return quat;\n};\n\n\nmodule.exports = ComplementaryFilter;\n","/*\n * Copyright 2015 Google Inc. All Rights Reserved.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nvar ComplementaryFilter = require('./complementary-filter.js');\nvar PosePredictor = require('./pose-predictor.js');\nvar TouchPanner = require('../touch-panner.js');\nvar MathUtil = require('../math-util.js');\nvar Util = require('../util.js');\n\n/**\n * The pose sensor, implemented using DeviceMotion APIs.\n */\nfunction FusionPoseSensor() {\n  this.deviceId = 'webvr-polyfill:fused';\n  this.deviceName = 'VR Position Device (webvr-polyfill:fused)';\n\n  this.accelerometer = new MathUtil.Vector3();\n  this.gyroscope = new MathUtil.Vector3();\n\n  this.start();\n\n  this.filter = new ComplementaryFilter(window.WebVRConfig.K_FILTER);\n  this.posePredictor = new PosePredictor(window.WebVRConfig.PREDICTION_TIME_S);\n  this.touchPanner = new TouchPanner();\n\n  this.filterToWorldQ = new MathUtil.Quaternion();\n\n  // Set the filter to world transform, depending on OS.\n  if (Util.isIOS()) {\n    this.filterToWorldQ.setFromAxisAngle(new MathUtil.Vector3(1, 0, 0), Math.PI / 2);\n  } else {\n    this.filterToWorldQ.setFromAxisAngle(new MathUtil.Vector3(1, 0, 0), -Math.PI / 2);\n  }\n\n  this.inverseWorldToScreenQ = new MathUtil.Quaternion();\n  this.worldToScreenQ = new MathUtil.Quaternion();\n  this.originalPoseAdjustQ = new MathUtil.Quaternion();\n  this.originalPoseAdjustQ.setFromAxisAngle(new MathUtil.Vector3(0, 0, 1),\n                                           -window.orientation * Math.PI / 180);\n\n  this.setScreenTransform_();\n  // Adjust this filter for being in landscape mode.\n  if (Util.isLandscapeMode()) {\n    this.filterToWorldQ.multiply(this.inverseWorldToScreenQ);\n  }\n\n  // Keep track of a reset transform for resetSensor.\n  this.resetQ = new MathUtil.Quaternion();\n\n  this.isFirefoxAndroid = Util.isFirefoxAndroid();\n  this.isIOS = Util.isIOS();\n\n  this.orientationOut_ = new Float32Array(4);\n}\n\nFusionPoseSensor.prototype.getPosition = function() {\n  // This PoseSensor doesn't support position\n  return null;\n};\n\nFusionPoseSensor.prototype.getOrientation = function() {\n  // Convert from filter space to the the same system used by the\n  // deviceorientation event.\n  var orientation = this.filter.getOrientation();\n\n  // Predict orientation.\n  this.predictedQ = this.posePredictor.getPrediction(orientation, this.gyroscope, this.previousTimestampS);\n\n  // Convert to THREE coordinate system: -Z forward, Y up, X right.\n  var out = new MathUtil.Quaternion();\n  out.copy(this.filterToWorldQ);\n  out.multiply(this.resetQ);\n  if (!window.WebVRConfig.TOUCH_PANNER_DISABLED) {\n    out.multiply(this.touchPanner.getOrientation());\n  }\n  out.multiply(this.predictedQ);\n  out.multiply(this.worldToScreenQ);\n\n  // Handle the yaw-only case.\n  if (window.WebVRConfig.YAW_ONLY) {\n    // Make a quaternion that only turns around the Y-axis.\n    out.x = 0;\n    out.z = 0;\n    out.normalize();\n  }\n\n  this.orientationOut_[0] = out.x;\n  this.orientationOut_[1] = out.y;\n  this.orientationOut_[2] = out.z;\n  this.orientationOut_[3] = out.w;\n  return this.orientationOut_;\n};\n\nFusionPoseSensor.prototype.resetPose = function() {\n  // Reduce to inverted yaw-only.\n  this.resetQ.copy(this.filter.getOrientation());\n  this.resetQ.x = 0;\n  this.resetQ.y = 0;\n  this.resetQ.z *= -1;\n  this.resetQ.normalize();\n\n  // Take into account extra transformations in landscape mode.\n  if (Util.isLandscapeMode()) {\n    this.resetQ.multiply(this.inverseWorldToScreenQ);\n  }\n\n  // Take into account original pose.\n  this.resetQ.multiply(this.originalPoseAdjustQ);\n\n  if (!window.WebVRConfig.TOUCH_PANNER_DISABLED) {\n    this.touchPanner.resetSensor();\n  }\n};\n\nFusionPoseSensor.prototype.onDeviceMotion_ = function(deviceMotion) {\n  this.updateDeviceMotion_(deviceMotion);\n};\n\nFusionPoseSensor.prototype.updateDeviceMotion_ = function(deviceMotion) {\n  var accGravity = deviceMotion.accelerationIncludingGravity;\n  var rotRate = deviceMotion.rotationRate;\n  var timestampS = deviceMotion.timeStamp / 1000;\n\n  var deltaS = timestampS - this.previousTimestampS;\n  if (deltaS <= Util.MIN_TIMESTEP || deltaS > Util.MAX_TIMESTEP) {\n    console.warn('Invalid timestamps detected. Time step between successive ' +\n                 'gyroscope sensor samples is very small or not monotonic');\n    this.previousTimestampS = timestampS;\n    return;\n  }\n\n  this.accelerometer.set(-accGravity.x, -accGravity.y, -accGravity.z);\n  if (Util.isR7()) {\n    this.gyroscope.set(-rotRate.beta, rotRate.alpha, rotRate.gamma);\n  } else {\n    this.gyroscope.set(rotRate.alpha, rotRate.beta, rotRate.gamma);\n  }\n\n  // With iOS and Firefox Android, rotationRate is reported in degrees,\n  // so we first convert to radians.\n  if (this.isIOS || this.isFirefoxAndroid) {\n    this.gyroscope.multiplyScalar(Math.PI / 180);\n  }\n\n  this.filter.addAccelMeasurement(this.accelerometer, timestampS);\n  this.filter.addGyroMeasurement(this.gyroscope, timestampS);\n\n  this.previousTimestampS = timestampS;\n};\n\nFusionPoseSensor.prototype.onOrientationChange_ = function(screenOrientation) {\n  this.setScreenTransform_();\n};\n\n/**\n * This is only needed if we are in an cross origin iframe on iOS to work around\n * this issue: https://bugs.webkit.org/show_bug.cgi?id=152299.\n */\nFusionPoseSensor.prototype.onMessage_ = function(event) {\n  var message = event.data;\n\n  // If there's no message type, ignore it.\n  if (!message || !message.type) {\n    return;\n  }\n\n  // Ignore all messages that aren't devicemotion.\n  var type = message.type.toLowerCase();\n  if (type !== 'devicemotion') {\n    return;\n  }\n\n  // Update device motion.\n  this.updateDeviceMotion_(message.deviceMotionEvent);\n};\n\nFusionPoseSensor.prototype.setScreenTransform_ = function() {\n  this.worldToScreenQ.set(0, 0, 0, 1);\n  switch (window.orientation) {\n    case 0:\n      break;\n    case 90:\n      this.worldToScreenQ.setFromAxisAngle(new MathUtil.Vector3(0, 0, 1), -Math.PI / 2);\n      break;\n    case -90:\n      this.worldToScreenQ.setFromAxisAngle(new MathUtil.Vector3(0, 0, 1), Math.PI / 2);\n      break;\n    case 180:\n      // TODO.\n      break;\n  }\n  this.inverseWorldToScreenQ.copy(this.worldToScreenQ);\n  this.inverseWorldToScreenQ.inverse();\n};\n\nFusionPoseSensor.prototype.start = function() {\n  this.onDeviceMotionCallback_ = this.onDeviceMotion_.bind(this);\n  this.onOrientationChangeCallback_ = this.onOrientationChange_.bind(this);\n  this.onMessageCallback_ = this.onMessage_.bind(this);\n\n  // Only listen for postMessages if we're in an iOS and embedded inside a cross\n  // domain IFrame. In this case, the polyfill can still work if the containing\n  // page sends synthetic devicemotion events. For an example of this, see\n  // iframe-message-sender.js in VR View: https://goo.gl/XDtvFZ\n  if (Util.isIOS() && Util.isInsideCrossDomainIFrame()) {\n    window.addEventListener('message', this.onMessageCallback_);\n  }\n  window.addEventListener('orientationchange', this.onOrientationChangeCallback_);\n  window.addEventListener('devicemotion', this.onDeviceMotionCallback_);\n};\n\nFusionPoseSensor.prototype.stop = function() {\n  window.removeEventListener('devicemotion', this.onDeviceMotionCallback_);\n  window.removeEventListener('orientationchange', this.onOrientationChangeCallback_);\n  window.removeEventListener('message', this.onMessageCallback_);\n};\n\nmodule.exports = FusionPoseSensor;\n","/*\n * Copyright 2015 Google Inc. All Rights Reserved.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nvar MathUtil = require('../math-util');\nvar Util = require('../util');\n\n/**\n * Given an orientation and the gyroscope data, predicts the future orientation\n * of the head. This makes rendering appear faster.\n *\n * Also see: http://msl.cs.uiuc.edu/~lavalle/papers/LavYerKatAnt14.pdf\n *\n * @param {Number} predictionTimeS time from head movement to the appearance of\n * the corresponding image.\n */\nfunction PosePredictor(predictionTimeS) {\n  this.predictionTimeS = predictionTimeS;\n\n  // The quaternion corresponding to the previous state.\n  this.previousQ = new MathUtil.Quaternion();\n  // Previous time a prediction occurred.\n  this.previousTimestampS = null;\n\n  // The delta quaternion that adjusts the current pose.\n  this.deltaQ = new MathUtil.Quaternion();\n  // The output quaternion.\n  this.outQ = new MathUtil.Quaternion();\n}\n\nPosePredictor.prototype.getPrediction = function(currentQ, gyro, timestampS) {\n  if (!this.previousTimestampS) {\n    this.previousQ.copy(currentQ);\n    this.previousTimestampS = timestampS;\n    return currentQ;\n  }\n\n  // Calculate axis and angle based on gyroscope rotation rate data.\n  var axis = new MathUtil.Vector3();\n  axis.copy(gyro);\n  axis.normalize();\n\n  var angularSpeed = gyro.length();\n\n  // If we're rotating slowly, don't do prediction.\n  if (angularSpeed < MathUtil.degToRad * 20) {\n    if (Util.isDebug()) {\n      console.log('Moving slowly, at %s deg/s: no prediction',\n                  (MathUtil.radToDeg * angularSpeed).toFixed(1));\n    }\n    this.outQ.copy(currentQ);\n    this.previousQ.copy(currentQ);\n    return this.outQ;\n  }\n\n  // Get the predicted angle based on the time delta and latency.\n  var deltaT = timestampS - this.previousTimestampS;\n  var predictAngle = angularSpeed * this.predictionTimeS;\n\n  this.deltaQ.setFromAxisAngle(axis, predictAngle);\n  this.outQ.copy(this.previousQ);\n  this.outQ.multiply(this.deltaQ);\n\n  this.previousQ.copy(currentQ);\n  this.previousTimestampS = timestampS;\n\n  return this.outQ;\n};\n\n\nmodule.exports = PosePredictor;\n","function SensorSample(sample, timestampS) {\n  this.set(sample, timestampS);\n};\n\nSensorSample.prototype.set = function(sample, timestampS) {\n  this.sample = sample;\n  this.timestampS = timestampS;\n};\n\nSensorSample.prototype.copy = function(sensorSample) {\n  this.set(sensorSample.sample, sensorSample.timestampS);\n};\n\nmodule.exports = SensorSample;\n","/*\n * Copyright 2015 Google Inc. All Rights Reserved.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nvar MathUtil = require('./math-util.js');\nvar Util = require('./util.js');\n\nvar ROTATE_SPEED = 0.5;\n/**\n * Provides a quaternion responsible for pre-panning the scene before further\n * transformations due to device sensors.\n */\nfunction TouchPanner() {\n  window.addEventListener('touchstart', this.onTouchStart_.bind(this));\n  window.addEventListener('touchmove', this.onTouchMove_.bind(this));\n  window.addEventListener('touchend', this.onTouchEnd_.bind(this));\n\n  this.isTouching = false;\n  this.rotateStart = new MathUtil.Vector2();\n  this.rotateEnd = new MathUtil.Vector2();\n  this.rotateDelta = new MathUtil.Vector2();\n\n  this.theta = 0;\n  this.orientation = new MathUtil.Quaternion();\n}\n\nTouchPanner.prototype.getOrientation = function() {\n  this.orientation.setFromEulerXYZ(0, 0, this.theta);\n  return this.orientation;\n};\n\nTouchPanner.prototype.resetSensor = function() {\n  this.theta = 0;\n};\n\nTouchPanner.prototype.onTouchStart_ = function(e) {\n  // Only respond if there is exactly one touch.\n  // Note that the Daydream controller passes in a `touchstart` event with\n  // no `touches` property, so we must check for that case too.\n  if (!e.touches || e.touches.length != 1) {\n    return;\n  }\n  this.rotateStart.set(e.touches[0].pageX, e.touches[0].pageY);\n  this.isTouching = true;\n};\n\nTouchPanner.prototype.onTouchMove_ = function(e) {\n  if (!this.isTouching) {\n    return;\n  }\n  this.rotateEnd.set(e.touches[0].pageX, e.touches[0].pageY);\n  this.rotateDelta.subVectors(this.rotateEnd, this.rotateStart);\n  this.rotateStart.copy(this.rotateEnd);\n\n  // On iOS, direction is inverted.\n  if (Util.isIOS()) {\n    this.rotateDelta.x *= -1;\n  }\n\n  var element = document.body;\n  this.theta += 2 * Math.PI * this.rotateDelta.x / element.clientWidth * ROTATE_SPEED;\n};\n\nTouchPanner.prototype.onTouchEnd_ = function(e) {\n  this.isTouching = false;\n};\n\nmodule.exports = TouchPanner;\n","/*\n * Copyright 2015 Google Inc. All Rights Reserved.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nvar Util = window.Util || {};\n\nUtil.MIN_TIMESTEP = 0.001;\nUtil.MAX_TIMESTEP = 1;\n\nUtil.base64 = function(mimeType, base64) {\n  return 'data:' + mimeType + ';base64,' + base64;\n};\n\nUtil.clamp = function(value, min, max) {\n  return Math.min(Math.max(min, value), max);\n};\n\nUtil.lerp = function(a, b, t) {\n  return a + ((b - a) * t);\n};\n\n/**\n * Light polyfill for `Promise.race`. Returns\n * a promise that resolves when the first promise\n * provided resolves.\n *\n * @param {Array<Promise>} promises\n */\nUtil.race = function(promises) {\n  if (Promise.race) {\n    return Promise.race(promises);\n  }\n\n  return new Promise(function (resolve, reject) {\n    for (var i = 0; i < promises.length; i++) {\n      promises[i].then(resolve, reject);\n    }\n  });\n};\n\nUtil.isIOS = (function() {\n  var isIOS = /iPad|iPhone|iPod/.test(navigator.platform);\n  return function() {\n    return isIOS;\n  };\n})();\n\nUtil.isWebViewAndroid = (function() {\n  var isWebViewAndroid = navigator.userAgent.indexOf('Version') !== -1 &&\n      navigator.userAgent.indexOf('Android') !== -1 &&\n      navigator.userAgent.indexOf('Chrome') !== -1;\n  return function() {\n    return isWebViewAndroid;\n  };\n})();\n\nUtil.isSafari = (function() {\n  var isSafari = /^((?!chrome|android).)*safari/i.test(navigator.userAgent);\n  return function() {\n    return isSafari;\n  };\n})();\n\nUtil.isFirefoxAndroid = (function() {\n  var isFirefoxAndroid = navigator.userAgent.indexOf('Firefox') !== -1 &&\n      navigator.userAgent.indexOf('Android') !== -1;\n  return function() {\n    return isFirefoxAndroid;\n  };\n})();\n\nUtil.isR7 = (function() {\n  var isR7 = navigator.userAgent.indexOf('R7 Build') !== -1;\n  return function() {\n    return isR7;\n  };\n})();\n\nUtil.isLandscapeMode = function() {\n  var rtn = (window.orientation == 90 || window.orientation == -90);\n  return Util.isR7() ? !rtn : rtn;\n};\n\n// Helper method to validate the time steps of sensor timestamps.\nUtil.isTimestampDeltaValid = function(timestampDeltaS) {\n  if (isNaN(timestampDeltaS)) {\n    return false;\n  }\n  if (timestampDeltaS <= Util.MIN_TIMESTEP) {\n    return false;\n  }\n  if (timestampDeltaS > Util.MAX_TIMESTEP) {\n    return false;\n  }\n  return true;\n};\n\nUtil.getScreenWidth = function() {\n  return Math.max(window.screen.width, window.screen.height) *\n      window.devicePixelRatio;\n};\n\nUtil.getScreenHeight = function() {\n  return Math.min(window.screen.width, window.screen.height) *\n      window.devicePixelRatio;\n};\n\nUtil.requestFullscreen = function(element) {\n  if (Util.isWebViewAndroid()) {\n      return false;\n  }\n  if (element.requestFullscreen) {\n    element.requestFullscreen();\n  } else if (element.webkitRequestFullscreen) {\n    element.webkitRequestFullscreen();\n  } else if (element.mozRequestFullScreen) {\n    element.mozRequestFullScreen();\n  } else if (element.msRequestFullscreen) {\n    element.msRequestFullscreen();\n  } else {\n    return false;\n  }\n\n  return true;\n};\n\nUtil.exitFullscreen = function() {\n  if (document.exitFullscreen) {\n    document.exitFullscreen();\n  } else if (document.webkitExitFullscreen) {\n    document.webkitExitFullscreen();\n  } else if (document.mozCancelFullScreen) {\n    document.mozCancelFullScreen();\n  } else if (document.msExitFullscreen) {\n    document.msExitFullscreen();\n  } else {\n    return false;\n  }\n\n  return true;\n};\n\nUtil.getFullscreenElement = function() {\n  return document.fullscreenElement ||\n      document.webkitFullscreenElement ||\n      document.mozFullScreenElement ||\n      document.msFullscreenElement;\n};\n\nUtil.linkProgram = function(gl, vertexSource, fragmentSource, attribLocationMap) {\n  // No error checking for brevity.\n  var vertexShader = gl.createShader(gl.VERTEX_SHADER);\n  gl.shaderSource(vertexShader, vertexSource);\n  gl.compileShader(vertexShader);\n\n  var fragmentShader = gl.createShader(gl.FRAGMENT_SHADER);\n  gl.shaderSource(fragmentShader, fragmentSource);\n  gl.compileShader(fragmentShader);\n\n  var program = gl.createProgram();\n  gl.attachShader(program, vertexShader);\n  gl.attachShader(program, fragmentShader);\n\n  for (var attribName in attribLocationMap)\n    gl.bindAttribLocation(program, attribLocationMap[attribName], attribName);\n\n  gl.linkProgram(program);\n\n  gl.deleteShader(vertexShader);\n  gl.deleteShader(fragmentShader);\n\n  return program;\n};\n\nUtil.getProgramUniforms = function(gl, program) {\n  var uniforms = {};\n  var uniformCount = gl.getProgramParameter(program, gl.ACTIVE_UNIFORMS);\n  var uniformName = '';\n  for (var i = 0; i < uniformCount; i++) {\n    var uniformInfo = gl.getActiveUniform(program, i);\n    uniformName = uniformInfo.name.replace('[0]', '');\n    uniforms[uniformName] = gl.getUniformLocation(program, uniformName);\n  }\n  return uniforms;\n};\n\nUtil.orthoMatrix = function (out, left, right, bottom, top, near, far) {\n  var lr = 1 / (left - right),\n      bt = 1 / (bottom - top),\n      nf = 1 / (near - far);\n  out[0] = -2 * lr;\n  out[1] = 0;\n  out[2] = 0;\n  out[3] = 0;\n  out[4] = 0;\n  out[5] = -2 * bt;\n  out[6] = 0;\n  out[7] = 0;\n  out[8] = 0;\n  out[9] = 0;\n  out[10] = 2 * nf;\n  out[11] = 0;\n  out[12] = (left + right) * lr;\n  out[13] = (top + bottom) * bt;\n  out[14] = (far + near) * nf;\n  out[15] = 1;\n  return out;\n};\n\nUtil.copyArray = function (source, dest) {\n  for (var i = 0, n = source.length; i < n; i++) {\n    dest[i] = source[i];\n  }\n};\n\nUtil.isMobile = function() {\n  var check = false;\n  (function(a){if(/(android|bb\\d+|meego).+mobile|avantgo|bada\\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\\-(n|u)|c55\\/|capi|ccwa|cdm\\-|cell|chtm|cldc|cmd\\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\\-s|devi|dica|dmob|do(c|p)o|ds(12|\\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\\-|_)|g1 u|g560|gene|gf\\-5|g\\-mo|go(\\.w|od)|gr(ad|un)|haie|hcit|hd\\-(m|p|t)|hei\\-|hi(pt|ta)|hp( i|ip)|hs\\-c|ht(c(\\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\\-(20|go|ma)|i230|iac( |\\-|\\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\\/)|klon|kpt |kwc\\-|kyo(c|k)|le(no|xi)|lg( g|\\/(k|l|u)|50|54|\\-[a-w])|libw|lynx|m1\\-w|m3ga|m50\\/|ma(te|ui|xo)|mc(01|21|ca)|m\\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\\-2|po(ck|rt|se)|prox|psio|pt\\-g|qa\\-a|qc(07|12|21|32|60|\\-[2-7]|i\\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\\-|oo|p\\-)|sdk\\/|se(c(\\-|0|1)|47|mc|nd|ri)|sgh\\-|shar|sie(\\-|m)|sk\\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\\-|v\\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\\-|tdg\\-|tel(i|m)|tim\\-|t\\-mo|to(pl|sh)|ts(70|m\\-|m3|m5)|tx\\-9|up(\\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\\-|your|zeto|zte\\-/i.test(a.substr(0,4)))check = true})(navigator.userAgent||navigator.vendor||window.opera);\n  return check;\n};\n\nUtil.extend = function(dest, src) {\n  for (var key in src) {\n    if (src.hasOwnProperty(key)) {\n      dest[key] = src[key];\n    }\n  }\n\n  return dest;\n}\n\nUtil.safariCssSizeWorkaround = function(canvas) {\n  // TODO(smus): Remove this workaround when Safari for iOS is fixed.\n  // iOS only workaround (for https://bugs.webkit.org/show_bug.cgi?id=152556).\n  //\n  // \"To the last I grapple with thee;\n  //  from hell's heart I stab at thee;\n  //  for hate's sake I spit my last breath at thee.\"\n  // -- Moby Dick, by Herman Melville\n  if (Util.isIOS()) {\n    var width = canvas.style.width;\n    var height = canvas.style.height;\n    canvas.style.width = (parseInt(width) + 1) + 'px';\n    canvas.style.height = (parseInt(height)) + 'px';\n    setTimeout(function() {\n      canvas.style.width = width;\n      canvas.style.height = height;\n    }, 100);\n  }\n\n  // Debug only.\n  window.Util = Util;\n  window.canvas = canvas;\n};\n\nUtil.isDebug = function() {\n  return Util.getQueryParameter('debug');\n};\n\nUtil.getQueryParameter = function(name) {\n  var name = name.replace(/[\\[]/, \"\\\\[\").replace(/[\\]]/, \"\\\\]\");\n  var regex = new RegExp(\"[\\\\?&]\" + name + \"=([^&#]*)\"),\n      results = regex.exec(location.search);\n  return results === null ? \"\" : decodeURIComponent(results[1].replace(/\\+/g, \" \"));\n};\n\nUtil.frameDataFromPose = (function() {\n  var piOver180 = Math.PI / 180.0;\n  var rad45 = Math.PI * 0.25;\n\n  // Borrowed from glMatrix.\n  function mat4_perspectiveFromFieldOfView(out, fov, near, far) {\n    var upTan = Math.tan(fov ? (fov.upDegrees * piOver180) : rad45),\n    downTan = Math.tan(fov ? (fov.downDegrees * piOver180) : rad45),\n    leftTan = Math.tan(fov ? (fov.leftDegrees * piOver180) : rad45),\n    rightTan = Math.tan(fov ? (fov.rightDegrees * piOver180) : rad45),\n    xScale = 2.0 / (leftTan + rightTan),\n    yScale = 2.0 / (upTan + downTan);\n\n    out[0] = xScale;\n    out[1] = 0.0;\n    out[2] = 0.0;\n    out[3] = 0.0;\n    out[4] = 0.0;\n    out[5] = yScale;\n    out[6] = 0.0;\n    out[7] = 0.0;\n    out[8] = -((leftTan - rightTan) * xScale * 0.5);\n    out[9] = ((upTan - downTan) * yScale * 0.5);\n    out[10] = far / (near - far);\n    out[11] = -1.0;\n    out[12] = 0.0;\n    out[13] = 0.0;\n    out[14] = (far * near) / (near - far);\n    out[15] = 0.0;\n    return out;\n  }\n\n  function mat4_fromRotationTranslation(out, q, v) {\n    // Quaternion math\n    var x = q[0], y = q[1], z = q[2], w = q[3],\n        x2 = x + x,\n        y2 = y + y,\n        z2 = z + z,\n\n        xx = x * x2,\n        xy = x * y2,\n        xz = x * z2,\n        yy = y * y2,\n        yz = y * z2,\n        zz = z * z2,\n        wx = w * x2,\n        wy = w * y2,\n        wz = w * z2;\n\n    out[0] = 1 - (yy + zz);\n    out[1] = xy + wz;\n    out[2] = xz - wy;\n    out[3] = 0;\n    out[4] = xy - wz;\n    out[5] = 1 - (xx + zz);\n    out[6] = yz + wx;\n    out[7] = 0;\n    out[8] = xz + wy;\n    out[9] = yz - wx;\n    out[10] = 1 - (xx + yy);\n    out[11] = 0;\n    out[12] = v[0];\n    out[13] = v[1];\n    out[14] = v[2];\n    out[15] = 1;\n\n    return out;\n  };\n\n  function mat4_translate(out, a, v) {\n    var x = v[0], y = v[1], z = v[2],\n        a00, a01, a02, a03,\n        a10, a11, a12, a13,\n        a20, a21, a22, a23;\n\n    if (a === out) {\n      out[12] = a[0] * x + a[4] * y + a[8] * z + a[12];\n      out[13] = a[1] * x + a[5] * y + a[9] * z + a[13];\n      out[14] = a[2] * x + a[6] * y + a[10] * z + a[14];\n      out[15] = a[3] * x + a[7] * y + a[11] * z + a[15];\n    } else {\n      a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];\n      a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];\n      a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];\n\n      out[0] = a00; out[1] = a01; out[2] = a02; out[3] = a03;\n      out[4] = a10; out[5] = a11; out[6] = a12; out[7] = a13;\n      out[8] = a20; out[9] = a21; out[10] = a22; out[11] = a23;\n\n      out[12] = a00 * x + a10 * y + a20 * z + a[12];\n      out[13] = a01 * x + a11 * y + a21 * z + a[13];\n      out[14] = a02 * x + a12 * y + a22 * z + a[14];\n      out[15] = a03 * x + a13 * y + a23 * z + a[15];\n    }\n\n    return out;\n  };\n\n  function mat4_invert(out, a) {\n    var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n        a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n        a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n        a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],\n\n        b00 = a00 * a11 - a01 * a10,\n        b01 = a00 * a12 - a02 * a10,\n        b02 = a00 * a13 - a03 * a10,\n        b03 = a01 * a12 - a02 * a11,\n        b04 = a01 * a13 - a03 * a11,\n        b05 = a02 * a13 - a03 * a12,\n        b06 = a20 * a31 - a21 * a30,\n        b07 = a20 * a32 - a22 * a30,\n        b08 = a20 * a33 - a23 * a30,\n        b09 = a21 * a32 - a22 * a31,\n        b10 = a21 * a33 - a23 * a31,\n        b11 = a22 * a33 - a23 * a32,\n\n        // Calculate the determinant\n        det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n\n    if (!det) {\n      return null;\n    }\n    det = 1.0 / det;\n\n    out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;\n    out[1] = (a02 * b10 - a01 * b11 - a03 * b09) * det;\n    out[2] = (a31 * b05 - a32 * b04 + a33 * b03) * det;\n    out[3] = (a22 * b04 - a21 * b05 - a23 * b03) * det;\n    out[4] = (a12 * b08 - a10 * b11 - a13 * b07) * det;\n    out[5] = (a00 * b11 - a02 * b08 + a03 * b07) * det;\n    out[6] = (a32 * b02 - a30 * b05 - a33 * b01) * det;\n    out[7] = (a20 * b05 - a22 * b02 + a23 * b01) * det;\n    out[8] = (a10 * b10 - a11 * b08 + a13 * b06) * det;\n    out[9] = (a01 * b08 - a00 * b10 - a03 * b06) * det;\n    out[10] = (a30 * b04 - a31 * b02 + a33 * b00) * det;\n    out[11] = (a21 * b02 - a20 * b04 - a23 * b00) * det;\n    out[12] = (a11 * b07 - a10 * b09 - a12 * b06) * det;\n    out[13] = (a00 * b09 - a01 * b07 + a02 * b06) * det;\n    out[14] = (a31 * b01 - a30 * b03 - a32 * b00) * det;\n    out[15] = (a20 * b03 - a21 * b01 + a22 * b00) * det;\n\n    return out;\n  };\n\n  var defaultOrientation = new Float32Array([0, 0, 0, 1]);\n  var defaultPosition = new Float32Array([0, 0, 0]);\n\n  function updateEyeMatrices(projection, view, pose, parameters, vrDisplay) {\n    mat4_perspectiveFromFieldOfView(projection, parameters ? parameters.fieldOfView : null, vrDisplay.depthNear, vrDisplay.depthFar);\n\n    var orientation = pose.orientation || defaultOrientation;\n    var position = pose.position || defaultPosition;\n\n    mat4_fromRotationTranslation(view, orientation, position);\n    if (parameters)\n      mat4_translate(view, view, parameters.offset);\n    mat4_invert(view, view);\n  }\n\n  return function(frameData, pose, vrDisplay) {\n    if (!frameData || !pose)\n      return false;\n\n    frameData.pose = pose;\n    frameData.timestamp = pose.timestamp;\n\n    updateEyeMatrices(\n        frameData.leftProjectionMatrix, frameData.leftViewMatrix,\n        pose, vrDisplay.getEyeParameters(\"left\"), vrDisplay);\n    updateEyeMatrices(\n        frameData.rightProjectionMatrix, frameData.rightViewMatrix,\n        pose, vrDisplay.getEyeParameters(\"right\"), vrDisplay);\n\n    return true;\n  };\n})();\n\nUtil.isInsideCrossDomainIFrame = function() {\n  var isFramed = (window.self !== window.top);\n  var refDomain = Util.getDomainFromUrl(document.referrer);\n  var thisDomain = Util.getDomainFromUrl(window.location.href);\n\n  return isFramed && (refDomain !== thisDomain);\n};\n\n// From http://stackoverflow.com/a/23945027.\nUtil.getDomainFromUrl = function(url) {\n  var domain;\n  // Find & remove protocol (http, ftp, etc.) and get domain.\n  if (url.indexOf(\"://\") > -1) {\n    domain = url.split('/')[2];\n  }\n  else {\n    domain = url.split('/')[0];\n  }\n\n  //find & remove port number\n  domain = domain.split(':')[0];\n\n  return domain;\n}\n\nmodule.exports = Util;\n","/*\n * Copyright 2015 Google Inc. All Rights Reserved.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nvar DeviceInfo = require('./device-info.js');\nvar Util = require('./util.js');\n\nvar DEFAULT_VIEWER = 'CardboardV1';\nvar VIEWER_KEY = 'WEBVR_CARDBOARD_VIEWER';\nvar CLASS_NAME = 'webvr-polyfill-viewer-selector';\n\n/**\n * Creates a viewer selector with the options specified. Supports being shown\n * and hidden. Generates events when viewer parameters change. Also supports\n * saving the currently selected index in localStorage.\n */\nfunction ViewerSelector() {\n  // Try to load the selected key from local storage.\n  try {\n    this.selectedKey = localStorage.getItem(VIEWER_KEY);\n  } catch (error) {\n    console.error('Failed to load viewer profile: %s', error);\n  }\n\n  //If none exists, or if localstorage is unavailable, use the default key.\n  if (!this.selectedKey) {\n    this.selectedKey = DEFAULT_VIEWER;\n  }\n\n  this.dialog = this.createDialog_(DeviceInfo.Viewers);\n  this.root = null;\n  this.onChangeCallbacks_ = [];\n}\n\nViewerSelector.prototype.show = function(root) {\n  this.root = root;\n\n  root.appendChild(this.dialog);\n\n  // Ensure the currently selected item is checked.\n  var selected = this.dialog.querySelector('#' + this.selectedKey);\n  selected.checked = true;\n\n  // Show the UI.\n  this.dialog.style.display = 'block';\n};\n\nViewerSelector.prototype.hide = function() {\n  if (this.root && this.root.contains(this.dialog)) {\n    this.root.removeChild(this.dialog);\n  }\n  this.dialog.style.display = 'none';\n};\n\nViewerSelector.prototype.getCurrentViewer = function() {\n  return DeviceInfo.Viewers[this.selectedKey];\n};\n\nViewerSelector.prototype.getSelectedKey_ = function() {\n  var input = this.dialog.querySelector('input[name=field]:checked');\n  if (input) {\n    return input.id;\n  }\n  return null;\n};\n\nViewerSelector.prototype.onChange = function(cb) {\n  this.onChangeCallbacks_.push(cb);\n};\n\nViewerSelector.prototype.fireOnChange_ = function(viewer) {\n  for (var i = 0; i < this.onChangeCallbacks_.length; i++) {\n    this.onChangeCallbacks_[i](viewer);\n  }\n};\n\nViewerSelector.prototype.onSave_ = function() {\n  this.selectedKey = this.getSelectedKey_();\n  if (!this.selectedKey || !DeviceInfo.Viewers[this.selectedKey]) {\n    console.error('ViewerSelector.onSave_: this should never happen!');\n    return;\n  }\n\n  this.fireOnChange_(DeviceInfo.Viewers[this.selectedKey]);\n\n  // Attempt to save the viewer profile, but fails in private mode.\n  try {\n    localStorage.setItem(VIEWER_KEY, this.selectedKey);\n  } catch(error) {\n    console.error('Failed to save viewer profile: %s', error);\n  }\n  this.hide();\n};\n\n/**\n * Creates the dialog.\n */\nViewerSelector.prototype.createDialog_ = function(options) {\n  var container = document.createElement('div');\n  container.classList.add(CLASS_NAME);\n  container.style.display = 'none';\n  // Create an overlay that dims the background, and which goes away when you\n  // tap it.\n  var overlay = document.createElement('div');\n  var s = overlay.style;\n  s.position = 'fixed';\n  s.left = 0;\n  s.top = 0;\n  s.width = '100%';\n  s.height = '100%';\n  s.background = 'rgba(0, 0, 0, 0.3)';\n  overlay.addEventListener('click', this.hide.bind(this));\n\n  var width = 280;\n  var dialog = document.createElement('div');\n  var s = dialog.style;\n  s.boxSizing = 'border-box';\n  s.position = 'fixed';\n  s.top = '24px';\n  s.left = '50%';\n  s.marginLeft = (-width/2) + 'px';\n  s.width = width + 'px';\n  s.padding = '24px';\n  s.overflow = 'hidden';\n  s.background = '#fafafa';\n  s.fontFamily = \"'Roboto', sans-serif\";\n  s.boxShadow = '0px 5px 20px #666';\n\n  dialog.appendChild(this.createH1_('Select your viewer'));\n  for (var id in options) {\n    dialog.appendChild(this.createChoice_(id, options[id].label));\n  }\n  dialog.appendChild(this.createButton_('Save', this.onSave_.bind(this)));\n\n  container.appendChild(overlay);\n  container.appendChild(dialog);\n\n  return container;\n};\n\nViewerSelector.prototype.createH1_ = function(name) {\n  var h1 = document.createElement('h1');\n  var s = h1.style;\n  s.color = 'black';\n  s.fontSize = '20px';\n  s.fontWeight = 'bold';\n  s.marginTop = 0;\n  s.marginBottom = '24px';\n  h1.innerHTML = name;\n  return h1;\n};\n\nViewerSelector.prototype.createChoice_ = function(id, name) {\n  /*\n  <div class=\"choice\">\n  <input id=\"v1\" type=\"radio\" name=\"field\" value=\"v1\">\n  <label for=\"v1\">Cardboard V1</label>\n  </div>\n  */\n  var div = document.createElement('div');\n  div.style.marginTop = '8px';\n  div.style.color = 'black';\n\n  var input = document.createElement('input');\n  input.style.fontSize = '30px';\n  input.setAttribute('id', id);\n  input.setAttribute('type', 'radio');\n  input.setAttribute('value', id);\n  input.setAttribute('name', 'field');\n\n  var label = document.createElement('label');\n  label.style.marginLeft = '4px';\n  label.setAttribute('for', id);\n  label.innerHTML = name;\n\n  div.appendChild(input);\n  div.appendChild(label);\n\n  return div;\n};\n\nViewerSelector.prototype.createButton_ = function(label, onclick) {\n  var button = document.createElement('button');\n  button.innerHTML = label;\n  var s = button.style;\n  s.float = 'right';\n  s.textTransform = 'uppercase';\n  s.color = '#1094f7';\n  s.fontSize = '14px';\n  s.letterSpacing = 0;\n  s.border = 0;\n  s.background = 'none';\n  s.marginTop = '16px';\n\n  button.addEventListener('click', onclick);\n\n  return button;\n};\n\nmodule.exports = ViewerSelector;\n","/*\n * Copyright 2015 Google Inc. All Rights Reserved.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nvar Util = require('./util.js');\n\n/**\n * Android and iOS compatible wakelock implementation.\n *\n * Refactored thanks to dkovalev@.\n */\nfunction AndroidWakeLock() {\n  var video = document.createElement('video');\n  video.setAttribute('loop', '');\n\n  function addSourceToVideo(element, type, dataURI) {\n    var source = document.createElement('source');\n    source.src = dataURI;\n    source.type = 'video/' + type;\n    element.appendChild(source);\n  }\n\n  addSourceToVideo(video,'webm', Util.base64('video/webm', 'GkXfo0AgQoaBAUL3gQFC8oEEQvOBCEKCQAR3ZWJtQoeBAkKFgQIYU4BnQI0VSalmQCgq17FAAw9CQE2AQAZ3aGFtbXlXQUAGd2hhbW15RIlACECPQAAAAAAAFlSua0AxrkAu14EBY8WBAZyBACK1nEADdW5khkAFVl9WUDglhohAA1ZQOIOBAeBABrCBCLqBCB9DtnVAIueBAKNAHIEAAIAwAQCdASoIAAgAAUAmJaQAA3AA/vz0AAA='));\n  addSourceToVideo(video, 'mp4', Util.base64('video/mp4', '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'));\n\n  this.request = function() {\n    if (video.paused) {\n      video.play();\n    }\n  };\n\n  this.release = function() {\n    video.pause();\n  };\n}\n\nfunction iOSWakeLock() {\n  var timer = null;\n\n  this.request = function() {\n    if (!timer) {\n      timer = setInterval(function() {\n        window.location = window.location;\n        setTimeout(window.stop, 0);\n      }, 30000);\n    }\n  }\n\n  this.release = function() {\n    if (timer) {\n      clearInterval(timer);\n      timer = null;\n    }\n  }\n}\n\n\nfunction getWakeLock() {\n  var userAgent = navigator.userAgent || navigator.vendor || window.opera;\n  if (userAgent.match(/iPhone/i) || userAgent.match(/iPod/i)) {\n    return iOSWakeLock;\n  } else {\n    return AndroidWakeLock;\n  }\n}\n\nmodule.exports = getWakeLock();","/*\n * Copyright 2015 Google Inc. All Rights Reserved.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nvar Util = require('./util.js');\nvar CardboardVRDisplay = require('./cardboard-vr-display.js');\nvar MouseKeyboardVRDisplay = require('./mouse-keyboard-vr-display.js');\n// Uncomment to add positional tracking via webcam.\n//var WebcamPositionSensorVRDevice = require('./webcam-position-sensor-vr-device.js');\nvar VRDisplay = require('./base.js').VRDisplay;\nvar VRFrameData = require('./base.js').VRFrameData;\nvar HMDVRDevice = require('./base.js').HMDVRDevice;\nvar PositionSensorVRDevice = require('./base.js').PositionSensorVRDevice;\nvar VRDisplayHMDDevice = require('./display-wrappers.js').VRDisplayHMDDevice;\nvar VRDisplayPositionSensorDevice = require('./display-wrappers.js').VRDisplayPositionSensorDevice;\nvar version = require('../package.json').version;\n\nfunction WebVRPolyfill() {\n  this.displays = [];\n  this.devices = []; // For deprecated objects\n  this.devicesPopulated = false;\n  this.nativeWebVRAvailable = this.isWebVRAvailable();\n  this.nativeLegacyWebVRAvailable = this.isDeprecatedWebVRAvailable();\n  this.nativeGetVRDisplaysFunc = this.nativeWebVRAvailable ?\n                                 navigator.getVRDisplays :\n                                 null;\n\n  if (!this.nativeLegacyWebVRAvailable && !this.nativeWebVRAvailable) {\n    this.enablePolyfill();\n    if (window.WebVRConfig.ENABLE_DEPRECATED_API) {\n      this.enableDeprecatedPolyfill();\n    }\n  }\n\n  // Put a shim in place to update the API to 1.1 if needed.\n  InstallWebVRSpecShim();\n}\n\nWebVRPolyfill.prototype.isWebVRAvailable = function() {\n  return ('getVRDisplays' in navigator);\n};\n\nWebVRPolyfill.prototype.isDeprecatedWebVRAvailable = function() {\n  return ('getVRDevices' in navigator) || ('mozGetVRDevices' in navigator);\n};\n\nWebVRPolyfill.prototype.connectDisplay = function(vrDisplay) {\n  vrDisplay.fireVRDisplayConnect_();\n  this.displays.push(vrDisplay);\n};\n\nWebVRPolyfill.prototype.populateDevices = function() {\n  if (this.devicesPopulated) {\n    return;\n  }\n\n  // Initialize our virtual VR devices.\n  var vrDisplay = null;\n\n  // Add a Cardboard VRDisplay on compatible mobile devices\n  if (this.isCardboardCompatible()) {\n    vrDisplay = new CardboardVRDisplay();\n\n    this.connectDisplay(vrDisplay);\n\n    // For backwards compatibility\n    if (window.WebVRConfig.ENABLE_DEPRECATED_API) {\n      this.devices.push(new VRDisplayHMDDevice(vrDisplay));\n      this.devices.push(new VRDisplayPositionSensorDevice(vrDisplay));\n    }\n  }\n\n  // Add a Mouse and Keyboard driven VRDisplay for desktops/laptops\n  if (!this.isMobile() && !window.WebVRConfig.MOUSE_KEYBOARD_CONTROLS_DISABLED) {\n    vrDisplay = new MouseKeyboardVRDisplay();\n    this.connectDisplay(vrDisplay);\n\n    // For backwards compatibility\n    if (window.WebVRConfig.ENABLE_DEPRECATED_API) {\n      this.devices.push(new VRDisplayHMDDevice(vrDisplay));\n      this.devices.push(new VRDisplayPositionSensorDevice(vrDisplay));\n    }\n  }\n\n  // Uncomment to add positional tracking via webcam.\n  //if (!this.isMobile() && window.WebVRConfig.ENABLE_DEPRECATED_API) {\n  //  positionDevice = new WebcamPositionSensorVRDevice();\n  //  this.devices.push(positionDevice);\n  //}\n\n  this.devicesPopulated = true;\n};\n\nWebVRPolyfill.prototype.enablePolyfill = function() {\n  // Provide navigator.getVRDisplays.\n  navigator.getVRDisplays = this.getVRDisplays.bind(this);\n\n  // Polyfill native VRDisplay.getFrameData\n  if (this.nativeWebVRAvailable && window.VRFrameData) {\n    var NativeVRFrameData = window.VRFrameData;\n    var nativeFrameData = new window.VRFrameData();\n    var nativeGetFrameData = window.VRDisplay.prototype.getFrameData;\n    window.VRFrameData = VRFrameData;\n\n    window.VRDisplay.prototype.getFrameData = function(frameData) {\n      if (frameData instanceof NativeVRFrameData) {\n        nativeGetFrameData.call(this, frameData);\n        return;\n      }\n\n      /*\n      Copy frame data from the native object into the polyfilled object.\n      */\n\n      nativeGetFrameData.call(this, nativeFrameData);\n      frameData.pose = nativeFrameData.pose;\n      Util.copyArray(nativeFrameData.leftProjectionMatrix, frameData.leftProjectionMatrix);\n      Util.copyArray(nativeFrameData.rightProjectionMatrix, frameData.rightProjectionMatrix);\n      Util.copyArray(nativeFrameData.leftViewMatrix, frameData.leftViewMatrix);\n      Util.copyArray(nativeFrameData.rightViewMatrix, frameData.rightViewMatrix);\n      //todo: copy\n    };\n  }\n\n  // Provide the `VRDisplay` object.\n  window.VRDisplay = VRDisplay;\n\n  // Provide the `navigator.vrEnabled` property.\n  if (navigator && typeof navigator.vrEnabled === 'undefined') {\n    var self = this;\n    Object.defineProperty(navigator, 'vrEnabled', {\n      get: function () {\n        return self.isCardboardCompatible() &&\n            (self.isFullScreenAvailable() || Util.isIOS());\n      }\n    });\n  }\n\n  if (!('VRFrameData' in window)) {\n    // Provide the VRFrameData object.\n    window.VRFrameData = VRFrameData;\n  }\n};\n\nWebVRPolyfill.prototype.enableDeprecatedPolyfill = function() {\n  // Provide navigator.getVRDevices.\n  navigator.getVRDevices = this.getVRDevices.bind(this);\n\n  // Provide the CardboardHMDVRDevice and PositionSensorVRDevice objects.\n  window.HMDVRDevice = HMDVRDevice;\n  window.PositionSensorVRDevice = PositionSensorVRDevice;\n};\n\nWebVRPolyfill.prototype.getVRDisplays = function() {\n  this.populateDevices();\n  var polyfillDisplays = this.displays;\n\n  if (!this.nativeWebVRAvailable) {\n    return Promise.resolve(polyfillDisplays);\n  }\n\n  // Set up a race condition if this browser has a bug where\n  // `navigator.getVRDisplays()` never resolves.\n  var timeoutId;\n  var vrDisplaysNative = this.nativeGetVRDisplaysFunc.call(navigator);\n  var timeoutPromise = new Promise(function(resolve) {\n    timeoutId = setTimeout(function() {\n      console.warn('Native WebVR implementation detected, but `getVRDisplays()` failed to resolve. Falling back to polyfill.');\n      resolve([]);\n    }, window.WebVRConfig.GET_VR_DISPLAYS_TIMEOUT);\n  });\n\n  return Util.race([\n    vrDisplaysNative,\n    timeoutPromise\n  ]).then(function(nativeDisplays) {\n    clearTimeout(timeoutId);\n    if (window.WebVRConfig.ALWAYS_APPEND_POLYFILL_DISPLAY) {\n      return nativeDisplays.concat(polyfillDisplays);\n    } else {\n      return nativeDisplays.length > 0 ? nativeDisplays : polyfillDisplays;\n    }\n  });\n};\n\nWebVRPolyfill.prototype.getVRDevices = function() {\n  console.warn('getVRDevices is deprecated. Please update your code to use getVRDisplays instead.');\n  var self = this;\n  return new Promise(function(resolve, reject) {\n    try {\n      if (!self.devicesPopulated) {\n        if (self.nativeWebVRAvailable) {\n          return navigator.getVRDisplays(function(displays) {\n            for (var i = 0; i < displays.length; ++i) {\n              self.devices.push(new VRDisplayHMDDevice(displays[i]));\n              self.devices.push(new VRDisplayPositionSensorDevice(displays[i]));\n            }\n            self.devicesPopulated = true;\n            resolve(self.devices);\n          }, reject);\n        }\n\n        if (self.nativeLegacyWebVRAvailable) {\n          return (navigator.getVRDDevices || navigator.mozGetVRDevices)(function(devices) {\n            for (var i = 0; i < devices.length; ++i) {\n              if (devices[i] instanceof HMDVRDevice) {\n                self.devices.push(devices[i]);\n              }\n              if (devices[i] instanceof PositionSensorVRDevice) {\n                self.devices.push(devices[i]);\n              }\n            }\n            self.devicesPopulated = true;\n            resolve(self.devices);\n          }, reject);\n        }\n      }\n\n      self.populateDevices();\n      resolve(self.devices);\n    } catch (e) {\n      reject(e);\n    }\n  });\n};\n\nWebVRPolyfill.prototype.NativeVRFrameData = window.VRFrameData;\n\n/**\n * Determine if a device is mobile.\n */\nWebVRPolyfill.prototype.isMobile = function() {\n  return /Android/i.test(navigator.userAgent) ||\n      /iPhone|iPad|iPod/i.test(navigator.userAgent);\n};\n\nWebVRPolyfill.prototype.isCardboardCompatible = function() {\n  // For now, support all iOS and Android devices.\n  // Also enable the WebVRConfig.FORCE_VR flag for debugging.\n  return this.isMobile() || window.WebVRConfig.FORCE_ENABLE_VR;\n};\n\nWebVRPolyfill.prototype.isFullScreenAvailable = function() {\n  return (document.fullscreenEnabled ||\n          document.mozFullScreenEnabled ||\n          document.webkitFullscreenEnabled ||\n          false);\n};\n\n// Installs a shim that updates a WebVR 1.0 spec implementation to WebVR 1.1\nfunction InstallWebVRSpecShim() {\n  if ('VRDisplay' in window && !('VRFrameData' in window)) {\n    // Provide the VRFrameData object.\n    window.VRFrameData = VRFrameData;\n\n    // A lot of Chrome builds don't have depthNear and depthFar, even\n    // though they're in the WebVR 1.0 spec. Patch them in if they're not present.\n    if(!('depthNear' in window.VRDisplay.prototype)) {\n      window.VRDisplay.prototype.depthNear = 0.01;\n    }\n\n    if(!('depthFar' in window.VRDisplay.prototype)) {\n      window.VRDisplay.prototype.depthFar = 10000.0;\n    }\n\n    window.VRDisplay.prototype.getFrameData = function(frameData) {\n      return Util.frameDataFromPose(frameData, this.getPose(), this);\n    }\n  }\n};\n\nWebVRPolyfill.InstallWebVRSpecShim = InstallWebVRSpecShim;\nWebVRPolyfill.version = version;\n\nmodule.exports.WebVRPolyfill = WebVRPolyfill;\n","var newline = /\\n/\nvar newlineChar = '\\n'\nvar whitespace = /\\s/\n\nmodule.exports = function(text, opt) {\n    var lines = module.exports.lines(text, opt)\n    return lines.map(function(line) {\n        return text.substring(line.start, line.end)\n    }).join('\\n')\n}\n\nmodule.exports.lines = function wordwrap(text, opt) {\n    opt = opt||{}\n\n    //zero width results in nothing visible\n    if (opt.width === 0 && opt.mode !== 'nowrap') \n        return []\n\n    text = text||''\n    var width = typeof opt.width === 'number' ? opt.width : Number.MAX_VALUE\n    var start = Math.max(0, opt.start||0)\n    var end = typeof opt.end === 'number' ? opt.end : text.length\n    var mode = opt.mode\n\n    var measure = opt.measure || monospace\n    if (mode === 'pre')\n        return pre(measure, text, start, end, width)\n    else\n        return greedy(measure, text, start, end, width, mode)\n}\n\nfunction idxOf(text, chr, start, end) {\n    var idx = text.indexOf(chr, start)\n    if (idx === -1 || idx > end)\n        return end\n    return idx\n}\n\nfunction isWhitespace(chr) {\n    return whitespace.test(chr)\n}\n\nfunction pre(measure, text, start, end, width) {\n    var lines = []\n    var lineStart = start\n    for (var i=start; i<end && i<text.length; i++) {\n        var chr = text.charAt(i)\n        var isNewline = newline.test(chr)\n\n        //If we've reached a newline, then step down a line\n        //Or if we've reached the EOF\n        if (isNewline || i===end-1) {\n            var lineEnd = isNewline ? i : i+1\n            var measured = measure(text, lineStart, lineEnd, width)\n            lines.push(measured)\n            \n            lineStart = i+1\n        }\n    }\n    return lines\n}\n\nfunction greedy(measure, text, start, end, width, mode) {\n    //A greedy word wrapper based on LibGDX algorithm\n    //https://github.com/libgdx/libgdx/blob/master/gdx/src/com/badlogic/gdx/graphics/g2d/BitmapFontCache.java\n    var lines = []\n\n    var testWidth = width\n    //if 'nowrap' is specified, we only wrap on newline chars\n    if (mode === 'nowrap')\n        testWidth = Number.MAX_VALUE\n\n    while (start < end && start < text.length) {\n        //get next newline position\n        var newLine = idxOf(text, newlineChar, start, end)\n\n        //eat whitespace at start of line\n        while (start < newLine) {\n            if (!isWhitespace( text.charAt(start) ))\n                break\n            start++\n        }\n\n        //determine visible # of glyphs for the available width\n        var measured = measure(text, start, newLine, testWidth)\n\n        var lineEnd = start + (measured.end-measured.start)\n        var nextStart = lineEnd + newlineChar.length\n\n        //if we had to cut the line before the next newline...\n        if (lineEnd < newLine) {\n            //find char to break on\n            while (lineEnd > start) {\n                if (isWhitespace(text.charAt(lineEnd)))\n                    break\n                lineEnd--\n            }\n            if (lineEnd === start) {\n                if (nextStart > start + newlineChar.length) nextStart--\n                lineEnd = nextStart // If no characters to break, show all.\n            } else {\n                nextStart = lineEnd\n                //eat whitespace at end of line\n                while (lineEnd > start) {\n                    if (!isWhitespace(text.charAt(lineEnd - newlineChar.length)))\n                        break\n                    lineEnd--\n                }\n            }\n        }\n        if (lineEnd >= start) {\n            var result = measure(text, start, lineEnd, testWidth)\n            lines.push(result)\n        }\n        start = nextStart\n    }\n    return lines\n}\n\n//determines the visible number of glyphs within a given width\nfunction monospace(text, start, end, width) {\n    var glyphs = Math.min(width, end-start)\n    return {\n        start: start,\n        end: start+glyphs\n    }\n}","\"use strict\";\nvar window = require(\"global/window\")\nvar isFunction = require(\"is-function\")\nvar parseHeaders = require(\"parse-headers\")\nvar xtend = require(\"xtend\")\n\nmodule.exports = createXHR\ncreateXHR.XMLHttpRequest = window.XMLHttpRequest || noop\ncreateXHR.XDomainRequest = \"withCredentials\" in (new createXHR.XMLHttpRequest()) ? createXHR.XMLHttpRequest : window.XDomainRequest\n\nforEachArray([\"get\", \"put\", \"post\", \"patch\", \"head\", \"delete\"], function(method) {\n    createXHR[method === \"delete\" ? \"del\" : method] = function(uri, options, callback) {\n        options = initParams(uri, options, callback)\n        options.method = method.toUpperCase()\n        return _createXHR(options)\n    }\n})\n\nfunction forEachArray(array, iterator) {\n    for (var i = 0; i < array.length; i++) {\n        iterator(array[i])\n    }\n}\n\nfunction isEmpty(obj){\n    for(var i in obj){\n        if(obj.hasOwnProperty(i)) return false\n    }\n    return true\n}\n\nfunction initParams(uri, options, callback) {\n    var params = uri\n\n    if (isFunction(options)) {\n        callback = options\n        if (typeof uri === \"string\") {\n            params = {uri:uri}\n        }\n    } else {\n        params = xtend(options, {uri: uri})\n    }\n\n    params.callback = callback\n    return params\n}\n\nfunction createXHR(uri, options, callback) {\n    options = initParams(uri, options, callback)\n    return _createXHR(options)\n}\n\nfunction _createXHR(options) {\n    if(typeof options.callback === \"undefined\"){\n        throw new Error(\"callback argument missing\")\n    }\n\n    var called = false\n    var callback = function cbOnce(err, response, body){\n        if(!called){\n            called = true\n            options.callback(err, response, body)\n        }\n    }\n\n    function readystatechange() {\n        if (xhr.readyState === 4) {\n            setTimeout(loadFunc, 0)\n        }\n    }\n\n    function getBody() {\n        // Chrome with requestType=blob throws errors arround when even testing access to responseText\n        var body = undefined\n\n        if (xhr.response) {\n            body = xhr.response\n        } else {\n            body = xhr.responseText || getXml(xhr)\n        }\n\n        if (isJson) {\n            try {\n                body = JSON.parse(body)\n            } catch (e) {}\n        }\n\n        return body\n    }\n\n    function errorFunc(evt) {\n        clearTimeout(timeoutTimer)\n        if(!(evt instanceof Error)){\n            evt = new Error(\"\" + (evt || \"Unknown XMLHttpRequest Error\") )\n        }\n        evt.statusCode = 0\n        return callback(evt, failureResponse)\n    }\n\n    // will load the data & process the response in a special response object\n    function loadFunc() {\n        if (aborted) return\n        var status\n        clearTimeout(timeoutTimer)\n        if(options.useXDR && xhr.status===undefined) {\n            //IE8 CORS GET successful response doesn't have a status field, but body is fine\n            status = 200\n        } else {\n            status = (xhr.status === 1223 ? 204 : xhr.status)\n        }\n        var response = failureResponse\n        var err = null\n\n        if (status !== 0){\n            response = {\n                body: getBody(),\n                statusCode: status,\n                method: method,\n                headers: {},\n                url: uri,\n                rawRequest: xhr\n            }\n            if(xhr.getAllResponseHeaders){ //remember xhr can in fact be XDR for CORS in IE\n                response.headers = parseHeaders(xhr.getAllResponseHeaders())\n            }\n        } else {\n            err = new Error(\"Internal XMLHttpRequest Error\")\n        }\n        return callback(err, response, response.body)\n    }\n\n    var xhr = options.xhr || null\n\n    if (!xhr) {\n        if (options.cors || options.useXDR) {\n            xhr = new createXHR.XDomainRequest()\n        }else{\n            xhr = new createXHR.XMLHttpRequest()\n        }\n    }\n\n    var key\n    var aborted\n    var uri = xhr.url = options.uri || options.url\n    var method = xhr.method = options.method || \"GET\"\n    var body = options.body || options.data\n    var headers = xhr.headers = options.headers || {}\n    var sync = !!options.sync\n    var isJson = false\n    var timeoutTimer\n    var failureResponse = {\n        body: undefined,\n        headers: {},\n        statusCode: 0,\n        method: method,\n        url: uri,\n        rawRequest: xhr\n    }\n\n    if (\"json\" in options && options.json !== false) {\n        isJson = true\n        headers[\"accept\"] || headers[\"Accept\"] || (headers[\"Accept\"] = \"application/json\") //Don't override existing accept header declared by user\n        if (method !== \"GET\" && method !== \"HEAD\") {\n            headers[\"content-type\"] || headers[\"Content-Type\"] || (headers[\"Content-Type\"] = \"application/json\") //Don't override existing accept header declared by user\n            body = JSON.stringify(options.json === true ? body : options.json)\n        }\n    }\n\n    xhr.onreadystatechange = readystatechange\n    xhr.onload = loadFunc\n    xhr.onerror = errorFunc\n    // IE9 must have onprogress be set to a unique function.\n    xhr.onprogress = function () {\n        // IE must die\n    }\n    xhr.onabort = function(){\n        aborted = true;\n    }\n    xhr.ontimeout = errorFunc\n    xhr.open(method, uri, !sync, options.username, options.password)\n    //has to be after open\n    if(!sync) {\n        xhr.withCredentials = !!options.withCredentials\n    }\n    // Cannot set timeout with sync request\n    // not setting timeout on the xhr object, because of old webkits etc. not handling that correctly\n    // both npm's request and jquery 1.x use this kind of timeout, so this is being consistent\n    if (!sync && options.timeout > 0 ) {\n        timeoutTimer = setTimeout(function(){\n            if (aborted) return\n            aborted = true//IE9 may still call readystatechange\n            xhr.abort(\"timeout\")\n            var e = new Error(\"XMLHttpRequest timeout\")\n            e.code = \"ETIMEDOUT\"\n            errorFunc(e)\n        }, options.timeout )\n    }\n\n    if (xhr.setRequestHeader) {\n        for(key in headers){\n            if(headers.hasOwnProperty(key)){\n                xhr.setRequestHeader(key, headers[key])\n            }\n        }\n    } else if (options.headers && !isEmpty(options.headers)) {\n        throw new Error(\"Headers cannot be set on an XDomainRequest object\")\n    }\n\n    if (\"responseType\" in options) {\n        xhr.responseType = options.responseType\n    }\n\n    if (\"beforeSend\" in options &&\n        typeof options.beforeSend === \"function\"\n    ) {\n        options.beforeSend(xhr)\n    }\n\n    // Microsoft Edge browser sends \"undefined\" when send is called with undefined value.\n    // XMLHttpRequest spec says to pass null as body to indicate no body\n    // See https://github.com/naugtur/xhr/issues/100.\n    xhr.send(body || null)\n\n    return xhr\n\n\n}\n\nfunction getXml(xhr) {\n    if (xhr.responseType === \"document\") {\n        return xhr.responseXML\n    }\n    var firefoxBugTakenEffect = xhr.responseXML && xhr.responseXML.documentElement.nodeName === \"parsererror\"\n    if (xhr.responseType === \"\" && !firefoxBugTakenEffect) {\n        return xhr.responseXML\n    }\n\n    return null\n}\n\nfunction noop() {}\n","module.exports = (function xmlparser() {\n  //common browsers\n  if (typeof self.DOMParser !== 'undefined') {\n    return function(str) {\n      var parser = new self.DOMParser()\n      return parser.parseFromString(str, 'application/xml')\n    }\n  } \n\n  //IE8 fallback\n  if (typeof self.ActiveXObject !== 'undefined'\n      && new self.ActiveXObject('Microsoft.XMLDOM')) {\n    return function(str) {\n      var xmlDoc = new self.ActiveXObject(\"Microsoft.XMLDOM\")\n      xmlDoc.async = \"false\"\n      xmlDoc.loadXML(str)\n      return xmlDoc\n    }\n  }\n\n  //last resort fallback\n  return function(str) {\n    var div = document.createElement('div')\n    div.innerHTML = str\n    return div\n  }\n})()\n","module.exports = extend\n\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\n\nfunction extend() {\n    var target = {}\n\n    for (var i = 0; i < arguments.length; i++) {\n        var source = arguments[i]\n\n        for (var key in source) {\n            if (hasOwnProperty.call(source, key)) {\n                target[key] = source[key]\n            }\n        }\n    }\n\n    return target\n}\n","var registerComponent = require('../core/component').registerComponent;\nvar THREE = require('../lib/three');\nvar utils = require('../utils/');\nvar bind = utils.bind;\n\nvar checkHasPositionalTracking = utils.device.checkHasPositionalTracking;\n\n/**\n * Camera component.\n * Pairs along with camera system to handle tracking the active camera.\n */\nmodule.exports.Component = registerComponent('camera', {\n  schema: {\n    active: {default: true},\n    far: {default: 10000},\n    fov: {default: 80, min: 0},\n    near: {default: 0.005, min: 0},\n    userHeight: {default: 0, min: 0},\n    zoom: {default: 1, min: 0}\n  },\n\n  /**\n   * Initialize three.js camera and add it to the entity.\n   * Add reference from scene to this entity as the camera.\n   */\n  init: function () {\n    var camera;\n    var el = this.el;\n    var sceneEl = el.sceneEl;\n\n    this.savedPose = null;\n\n    // Create camera.\n    camera = this.camera = new THREE.PerspectiveCamera();\n    el.setObject3D('camera', camera);\n\n    // Add listeners to save and restore camera pose if headset is present.\n    this.onEnterVR = bind(this.onEnterVR, this);\n    this.onExitVR = bind(this.onExitVR, this);\n    sceneEl.addEventListener('enter-vr', this.onEnterVR);\n    sceneEl.addEventListener('exit-vr', this.onExitVR);\n\n    // Call enter VR handler if the scene has entered VR before the event listeners attached.\n    if (sceneEl.is('vr-mode')) { this.onEnterVR(); }\n  },\n\n  /**\n   * Update three.js camera.\n   */\n  update: function (oldData) {\n    var el = this.el;\n    var data = this.data;\n    var camera = this.camera;\n    var system = this.system;\n\n    // Update height offset.\n    this.addHeightOffset(oldData.userHeight);\n\n    // Update properties.\n    camera.aspect = data.aspect || (window.innerWidth / window.innerHeight);\n    camera.far = data.far;\n    camera.fov = data.fov;\n    camera.near = data.near;\n    camera.zoom = data.zoom;\n    camera.updateProjectionMatrix();\n\n    // Active property did not change.\n    if (oldData && oldData.active === data.active) { return; }\n\n    // If `active` property changes, or first update, handle active camera with system.\n    if (data.active && system.activeCameraEl !== el) {\n      // Camera enabled. Set camera to this camera.\n      system.setActiveCamera(el);\n    } else if (!data.active && system.activeCameraEl === el) {\n      // Camera disabled. Set camera to another camera.\n      system.disableActiveCamera();\n    }\n  },\n\n  /**\n   * Remove camera on remove (callback).\n   */\n  remove: function () {\n    var sceneEl = this.el.sceneEl;\n    this.el.removeObject3D('camera');\n    sceneEl.removeEventListener('enter-vr', this.onEnterVR);\n    sceneEl.removeEventListener('exit-vr', this.onExitVR);\n  },\n\n  /**\n   * Save pose and remove the offset.\n   */\n  onEnterVR: function () {\n    this.saveCameraPose();\n    this.removeHeightOffset();\n  },\n\n  /**\n   * Restore the pose. Do not need to re-add the offset because it was saved on entering VR.\n   */\n  onExitVR: function () {\n    this.restoreCameraPose();\n  },\n\n  /**\n   * Offsets the position of the camera to set a human scale perspective\n   * This offset is not necessary when using a headset because the SDK\n   * will return the real user's head height and position.\n   */\n  addHeightOffset: function (oldOffset) {\n    var el = this.el;\n    var currentPosition;\n    var userHeightOffset = this.data.userHeight;\n\n    oldOffset = oldOffset || 0;\n    currentPosition = el.getAttribute('position') || {x: 0, y: 0, z: 0};\n    el.setAttribute('position', {\n      x: currentPosition.x,\n      y: currentPosition.y - oldOffset + userHeightOffset,\n      z: currentPosition.z\n    });\n  },\n\n  /**\n   * Remove the height offset (called when entering VR) since WebVR API gives absolute\n   * position.\n   */\n  removeHeightOffset: function () {\n    var currentPosition;\n    var el = this.el;\n    var hasPositionalTracking;\n    var userHeightOffset = this.data.userHeight;\n\n    // Remove the offset if there is positional tracking when entering VR.\n    // Necessary for fullscreen mode with no headset.\n    // Checking this.hasPositionalTracking to make the value injectable for unit tests.\n    hasPositionalTracking = this.hasPositionalTracking !== undefined\n      ? this.hasPositionalTracking\n      : checkHasPositionalTracking();\n\n    if (!userHeightOffset || !hasPositionalTracking) { return; }\n\n    currentPosition = el.getAttribute('position') || {x: 0, y: 0, z: 0};\n    el.setAttribute('position', {\n      x: currentPosition.x,\n      y: currentPosition.y - userHeightOffset,\n      z: currentPosition.z\n    });\n  },\n\n  /**\n   * Save camera pose before entering VR to restore later if exiting.\n   */\n  saveCameraPose: function () {\n    var el = this.el;\n    var hasPositionalTracking = this.hasPositionalTracking !== undefined ? this.hasPositionalTracking : checkHasPositionalTracking();\n\n    if (this.savedPose || !hasPositionalTracking) { return; }\n\n    this.savedPose = {\n      position: el.getAttribute('position').clone(),\n      rotation: el.getAttribute('rotation')\n    };\n  },\n\n  /**\n   * Reset camera pose to before entering VR.\n   */\n  restoreCameraPose: function () {\n    var el = this.el;\n    var savedPose = this.savedPose;\n    var hasPositionalTracking = this.hasPositionalTracking !== undefined ? this.hasPositionalTracking : checkHasPositionalTracking();\n\n    if (!savedPose || !hasPositionalTracking) { return; }\n\n    // Reset camera orientation.\n    el.setAttribute('position', savedPose.position);\n    el.setAttribute('rotation', savedPose.rotation);\n    this.savedPose = null;\n  }\n});\n","var registerComponent = require('../core/component').registerComponent;\nvar THREE = require('../lib/three');\n\nmodule.exports.Component = registerComponent('collada-model', {\n  schema: {type: 'asset'},\n\n  init: function () {\n    this.model = null;\n    this.loader = new THREE.ColladaLoader();\n    this.loader.options.convertUpAxis = true;\n  },\n\n  update: function () {\n    var self = this;\n    var el = this.el;\n    var src = this.data;\n\n    if (!src) { return; }\n\n    this.remove();\n\n    this.loader.load(src, function (colladaModel) {\n      self.model = colladaModel.scene;\n      el.setObject3D('mesh', self.model);\n      el.emit('model-loaded', {format: 'collada', model: self.model});\n    });\n  },\n\n  remove: function () {\n    if (!this.model) { return; }\n    this.el.removeObject3D('mesh');\n  }\n});\n","/* global THREE */\nvar registerComponent = require('../core/component').registerComponent;\nvar utils = require('../utils/');\n\nvar bind = utils.bind;\n\nvar EVENTS = {\n  CLICK: 'click',\n  FUSING: 'fusing',\n  MOUSEENTER: 'mouseenter',\n  MOUSEDOWN: 'mousedown',\n  MOUSELEAVE: 'mouseleave',\n  MOUSEUP: 'mouseup'\n};\n\nvar STATES = {\n  FUSING: 'cursor-fusing',\n  HOVERING: 'cursor-hovering',\n  HOVERED: 'cursor-hovered'\n};\n\nvar CANVAS_EVENTS = {\n  DOWN: ['mousedown', 'touchstart'],\n  UP: ['mouseup', 'touchend']\n};\n\n/**\n * Cursor component. Applies the raycaster component specifically for starting the raycaster\n * from the camera and pointing from camera's facing direction, and then only returning the\n * closest intersection. Cursor can be fine-tuned by setting raycaster properties.\n *\n * @member {object} fuseTimeout - Timeout to trigger fuse-click.\n * @member {Element} cursorDownEl - Entity that was last mousedowned during current click.\n * @member {object} intersection - Attributes of the current intersection event, including\n *         3D- and 2D-space coordinates. See: http://threejs.org/docs/api/core/Raycaster.html\n * @member {Element} intersectedEl - Currently-intersected entity. Used to keep track to\n *         emit events when unintersecting.\n */\nmodule.exports.Component = registerComponent('cursor', {\n  dependencies: ['raycaster'],\n\n  schema: {\n    downEvents: {default: []},\n    fuse: {default: utils.device.isMobile()},\n    fuseTimeout: {default: 1500, min: 0},\n    upEvents: {default: []},\n    rayOrigin: {default: 'entity', oneOf: ['mouse', 'entity']}\n  },\n\n  init: function () {\n    var self = this;\n\n    this.fuseTimeout = undefined;\n    this.cursorDownEl = null;\n    this.intersection = null;\n    this.intersectedEl = null;\n    this.canvasBounds = document.body.getBoundingClientRect();\n\n    // Debounce.\n    this.updateCanvasBounds = utils.debounce(function updateCanvasBounds () {\n      self.canvasBounds = self.el.sceneEl.canvas.getBoundingClientRect();\n    }, 200);\n\n    this.eventDetail = {};\n    this.intersectedEventDetail = {cursorEl: this.el};\n\n    // Bind methods.\n    this.onCursorDown = bind(this.onCursorDown, this);\n    this.onCursorUp = bind(this.onCursorUp, this);\n    this.onIntersection = bind(this.onIntersection, this);\n    this.onIntersectionCleared = bind(this.onIntersectionCleared, this);\n    this.onMouseMove = bind(this.onMouseMove, this);\n  },\n\n  update: function (oldData) {\n    if (this.data.rayOrigin === oldData.rayOrigin) { return; }\n    this.updateMouseEventListeners();\n  },\n\n  play: function () {\n    this.addEventListeners();\n  },\n\n  pause: function () {\n    this.removeEventListeners();\n  },\n\n  remove: function () {\n    var el = this.el;\n    el.removeState(STATES.HOVERING);\n    el.removeState(STATES.FUSING);\n    clearTimeout(this.fuseTimeout);\n    if (this.intersectedEl) { this.intersectedEl.removeState(STATES.HOVERED); }\n    this.removeEventListeners();\n  },\n\n  addEventListeners: function () {\n    var canvas;\n    var data = this.data;\n    var el = this.el;\n    var self = this;\n\n    function addCanvasListeners () {\n      canvas = el.sceneEl.canvas;\n      CANVAS_EVENTS.DOWN.forEach(function (downEvent) {\n        canvas.addEventListener(downEvent, self.onCursorDown);\n      });\n      CANVAS_EVENTS.UP.forEach(function (upEvent) {\n        canvas.addEventListener(upEvent, self.onCursorUp);\n      });\n    }\n\n    canvas = el.sceneEl.canvas;\n    if (canvas) {\n      addCanvasListeners();\n    } else {\n      el.sceneEl.addEventListener('render-target-loaded', addCanvasListeners);\n    }\n\n    data.downEvents.forEach(function (downEvent) {\n      el.addEventListener(downEvent, self.onCursorDown);\n    });\n    data.upEvents.forEach(function (upEvent) {\n      el.addEventListener(upEvent, self.onCursorUp);\n    });\n    el.addEventListener('raycaster-intersection', this.onIntersection);\n    el.addEventListener('raycaster-intersection-cleared', this.onIntersectionCleared);\n\n    window.addEventListener('resize', this.updateCanvasBounds);\n  },\n\n  removeEventListeners: function () {\n    var canvas;\n    var data = this.data;\n    var el = this.el;\n    var self = this;\n\n    canvas = el.sceneEl.canvas;\n    if (canvas) {\n      CANVAS_EVENTS.DOWN.forEach(function (downEvent) {\n        canvas.removeEventListener(downEvent, self.onCursorDown);\n      });\n      CANVAS_EVENTS.UP.forEach(function (upEvent) {\n        canvas.removeEventListener(upEvent, self.onCursorUp);\n      });\n    }\n\n    data.downEvents.forEach(function (downEvent) {\n      el.removeEventListener(downEvent, self.onCursorDown);\n    });\n    data.upEvents.forEach(function (upEvent) {\n      el.removeEventListener(upEvent, self.onCursorUp);\n    });\n    el.removeEventListener('raycaster-intersection', this.onIntersection);\n    el.removeEventListener('raycaster-intersection-cleared', this.onIntersectionCleared);\n    canvas.removeEventListener('mousemove', this.onMouseMove);\n    canvas.removeEventListener('touchstart', this.onMouseMove);\n    canvas.removeEventListener('touchmove', this.onMouseMove);\n    canvas.removeEventListener('resize', this.updateCanvasBounds);\n  },\n\n  updateMouseEventListeners: function () {\n    var canvas;\n    var el = this.el;\n\n    canvas = el.sceneEl.canvas;\n    canvas.removeEventListener('mousemove', this.onMouseMove);\n    canvas.removeEventListener('touchmove', this.onMouseMove);\n    el.setAttribute('raycaster', 'useWorldCoordinates', false);\n    if (this.data.rayOrigin !== 'mouse') { return; }\n    canvas.addEventListener('mousemove', this.onMouseMove, false);\n    canvas.addEventListener('touchmove', this.onMouseMove, false);\n    el.setAttribute('raycaster', 'useWorldCoordinates', true);\n    this.updateCanvasBounds();\n  },\n\n  onMouseMove: (function () {\n    var direction = new THREE.Vector3();\n    var mouse = new THREE.Vector2();\n    var origin = new THREE.Vector3();\n    var rayCasterConfig = {origin: origin, direction: direction};\n\n    return function (evt) {\n      var bounds = this.canvasBounds;\n      var camera = this.el.sceneEl.camera;\n      var left;\n      var point;\n      var top;\n\n      camera.parent.updateMatrixWorld();\n      camera.updateMatrixWorld();\n\n      // Calculate mouse position based on the canvas element\n      if (evt.type === 'touchmove' || evt.type === 'touchstart') {\n        // Track the first touch for simplicity.\n        point = evt.touches.item(0);\n      } else {\n        point = evt;\n      }\n\n      left = point.clientX - bounds.left;\n      top = point.clientY - bounds.top;\n      mouse.x = (left / bounds.width) * 2 - 1;\n      mouse.y = -(top / bounds.height) * 2 + 1;\n\n      origin.setFromMatrixPosition(camera.matrixWorld);\n      direction.set(mouse.x, mouse.y, 0.5).unproject(camera).sub(origin).normalize();\n      this.el.setAttribute('raycaster', rayCasterConfig);\n      if (evt.type === 'touchmove') { evt.preventDefault(); }\n    };\n  })(),\n\n  /**\n   * Trigger mousedown and keep track of the mousedowned entity.\n   */\n  onCursorDown: function (evt) {\n    // Raycast again for touch.\n    if (this.data.rayOrigin === 'mouse') {\n      this.onMouseMove(evt);\n      this.el.components.raycaster.checkIntersections();\n    }\n\n    this.twoWayEmit(EVENTS.MOUSEDOWN);\n    this.cursorDownEl = this.intersectedEl;\n    if (evt.type === 'touchstart') { evt.preventDefault(); }\n  },\n\n  /**\n   * Trigger mouseup if:\n   * - Not fusing (mobile has no mouse).\n   * - Currently intersecting an entity.\n   * - Currently-intersected entity is the same as the one when mousedown was triggered,\n   *   in case user mousedowned one entity, dragged to another, and mouseupped.\n   */\n  onCursorUp: function (evt) {\n    this.twoWayEmit(EVENTS.MOUSEUP);\n\n    // If intersected entity has changed since the cursorDown, still emit mouseUp on the\n    // previously cursorUp entity.\n    if (this.cursorDownEl && this.cursorDownEl !== this.intersectedEl) {\n      this.intersectedEventDetail.intersection = null;\n      this.cursorDownEl.emit(EVENTS.MOUSEUP, this.intersectedEventDetail);\n    }\n\n    if (!this.data.fuse && this.intersectedEl && this.cursorDownEl === this.intersectedEl) {\n      this.twoWayEmit(EVENTS.CLICK);\n    }\n\n    this.cursorDownEl = null;\n    if (evt.type === 'touchend') { evt.preventDefault(); }\n  },\n\n  /**\n   * Handle intersection.\n   */\n  onIntersection: function (evt) {\n    var self = this;\n    var cursorEl = this.el;\n    var data = this.data;\n    var index;\n    var intersectedEl;\n    var intersection;\n\n    // Select closest object, excluding the cursor.\n    index = evt.detail.els[0] === cursorEl ? 1 : 0;\n    intersection = evt.detail.intersections[index];\n    intersectedEl = evt.detail.els[index];\n\n    // If cursor is the only intersected object, ignore the event.\n    if (!intersectedEl) { return; }\n\n    // Already intersecting this entity.\n    if (this.intersectedEl === intersectedEl) {\n      this.intersection = intersection;\n      return;\n    }\n\n    // Unset current intersection.\n    if (this.intersectedEl) { this.clearCurrentIntersection(); }\n\n    // Set new intersection.\n    this.intersection = intersection;\n    this.intersectedEl = intersectedEl;\n\n    // Hovering.\n    cursorEl.addState(STATES.HOVERING);\n    intersectedEl.addState(STATES.HOVERED);\n    self.twoWayEmit(EVENTS.MOUSEENTER);\n\n    // Begin fuse if necessary.\n    if (data.fuseTimeout === 0 || !data.fuse) { return; }\n    cursorEl.addState(STATES.FUSING);\n    this.twoWayEmit(EVENTS.FUSING);\n    this.fuseTimeout = setTimeout(function fuse () {\n      cursorEl.removeState(STATES.FUSING);\n      self.twoWayEmit(EVENTS.CLICK);\n    }, data.fuseTimeout);\n  },\n\n  /**\n   * Handle intersection cleared.\n   */\n  onIntersectionCleared: function (evt) {\n    var clearedEls = evt.detail.clearedEls;\n\n    // Check if the current intersection has ended\n    if (clearedEls.indexOf(this.intersectedEl) !== -1) {\n      this.clearCurrentIntersection();\n    }\n  },\n\n  clearCurrentIntersection: function () {\n    var cursorEl = this.el;\n\n    // No longer hovering (or fusing).\n    this.intersectedEl.removeState(STATES.HOVERED);\n    cursorEl.removeState(STATES.HOVERING);\n    cursorEl.removeState(STATES.FUSING);\n    this.twoWayEmit(EVENTS.MOUSELEAVE);\n\n    // Unset intersected entity (after emitting the event).\n    this.intersection = null;\n    this.intersectedEl = null;\n\n    // Clear fuseTimeout.\n    clearTimeout(this.fuseTimeout);\n  },\n\n  /**\n   * Helper to emit on both the cursor and the intersected entity (if exists).\n   */\n  twoWayEmit: function (evtName) {\n    var el = this.el;\n    var intersectedEl = this.intersectedEl;\n    var intersection = this.intersection;\n\n    this.eventDetail.intersectedEl = intersectedEl;\n    this.eventDetail.intersection = intersection;\n    el.emit(evtName, this.eventDetail);\n\n    if (!intersectedEl) { return; }\n\n    this.intersectedEventDetail.intersection = intersection;\n    intersectedEl.emit(evtName, this.intersectedEventDetail);\n  }\n});\n","var registerComponent = require('../core/component').registerComponent;\nvar bind = require('../utils/bind');\nvar checkControllerPresentAndSetup = require('../utils/tracked-controls').checkControllerPresentAndSetup;\nvar trackedControlsUtils = require('../utils/tracked-controls');\nvar emitIfAxesChanged = trackedControlsUtils.emitIfAxesChanged;\nvar onButtonEvent = trackedControlsUtils.onButtonEvent;\n\nvar DAYDREAM_CONTROLLER_MODEL_BASE_URL = 'https://cdn.aframe.io/controllers/google/';\nvar DAYDREAM_CONTROLLER_MODEL_OBJ_URL = DAYDREAM_CONTROLLER_MODEL_BASE_URL + 'vr_controller_daydream.obj';\nvar DAYDREAM_CONTROLLER_MODEL_OBJ_MTL = DAYDREAM_CONTROLLER_MODEL_BASE_URL + 'vr_controller_daydream.mtl';\n\nvar GAMEPAD_ID_PREFIX = 'Daydream Controller';\n\n/**\n * Daydream controls.\n * Interface with Daydream controller and map Gamepad events to\n * controller buttons: trackpad, menu, system\n * Load a controller model and highlight the pressed buttons.\n */\nmodule.exports.Component = registerComponent('daydream-controls', {\n  schema: {\n    hand: {default: ''},  // This informs the degenerate arm model.\n    buttonColor: {type: 'color', default: '#000000'},\n    buttonTouchedColor: {type: 'color', default: '#777777'},\n    buttonHighlightColor: {type: 'color', default: '#FFFFFF'},\n    model: {default: true},\n    rotationOffset: {default: 0},\n    armModel: {default: true}\n  },\n\n  /**\n   * Button IDs:\n   * 0 - trackpad\n   * 1 - menu (never dispatched on this layer)\n   * 2 - system (never dispatched on this layer)\n   */\n  mapping: {\n    axes: {trackpad: [0, 1]},\n    buttons: ['trackpad', 'menu', 'system']\n  },\n\n  bindMethods: function () {\n    this.onModelLoaded = bind(this.onModelLoaded, this);\n    this.onControllersUpdate = bind(this.onControllersUpdate, this);\n    this.checkIfControllerPresent = bind(this.checkIfControllerPresent, this);\n    this.removeControllersUpdateListener = bind(this.removeControllersUpdateListener, this);\n    this.onAxisMoved = bind(this.onAxisMoved, this);\n  },\n\n  init: function () {\n    var self = this;\n    this.animationActive = 'pointing';\n    this.onButtonChanged = bind(this.onButtonChanged, this);\n    this.onButtonDown = function (evt) { onButtonEvent(evt.detail.id, 'down', self); };\n    this.onButtonUp = function (evt) { onButtonEvent(evt.detail.id, 'up', self); };\n    this.onButtonTouchStart = function (evt) { onButtonEvent(evt.detail.id, 'touchstart', self); };\n    this.onButtonTouchEnd = function (evt) { onButtonEvent(evt.detail.id, 'touchend', self); };\n    this.onAxisMoved = bind(this.onAxisMoved, this);\n    this.controllerPresent = false;\n    this.lastControllerCheck = 0;\n    this.bindMethods();\n    this.checkControllerPresentAndSetup = checkControllerPresentAndSetup;  // To allow mock.\n    this.emitIfAxesChanged = emitIfAxesChanged;  // To allow mock.\n  },\n\n  addEventListeners: function () {\n    var el = this.el;\n    el.addEventListener('buttonchanged', this.onButtonChanged);\n    el.addEventListener('buttondown', this.onButtonDown);\n    el.addEventListener('buttonup', this.onButtonUp);\n    el.addEventListener('touchstart', this.onButtonTouchStart);\n    el.addEventListener('touchend', this.onButtonTouchEnd);\n    el.addEventListener('model-loaded', this.onModelLoaded);\n    el.addEventListener('axismove', this.onAxisMoved);\n    this.controllerEventsActive = true;\n  },\n\n  removeEventListeners: function () {\n    var el = this.el;\n    el.removeEventListener('buttonchanged', this.onButtonChanged);\n    el.removeEventListener('buttondown', this.onButtonDown);\n    el.removeEventListener('buttonup', this.onButtonUp);\n    el.removeEventListener('touchstart', this.onButtonTouchStart);\n    el.removeEventListener('touchend', this.onButtonTouchEnd);\n    el.removeEventListener('model-loaded', this.onModelLoaded);\n    el.removeEventListener('axismove', this.onAxisMoved);\n    this.controllerEventsActive = false;\n  },\n\n  checkIfControllerPresent: function () {\n    this.checkControllerPresentAndSetup(this, GAMEPAD_ID_PREFIX, {hand: this.data.hand});\n  },\n\n  play: function () {\n    this.checkIfControllerPresent();\n    this.addControllersUpdateListener();\n  },\n\n  pause: function () {\n    this.removeEventListeners();\n    this.removeControllersUpdateListener();\n  },\n\n  injectTrackedControls: function () {\n    var el = this.el;\n    var data = this.data;\n    el.setAttribute('tracked-controls', {\n      armModel: data.armModel,\n      hand: data.hand,\n      idPrefix: GAMEPAD_ID_PREFIX,\n      rotationOffset: data.rotationOffset\n    });\n    if (!this.data.model) { return; }\n    this.el.setAttribute('obj-model', {\n      obj: DAYDREAM_CONTROLLER_MODEL_OBJ_URL,\n      mtl: DAYDREAM_CONTROLLER_MODEL_OBJ_MTL\n    });\n  },\n\n  addControllersUpdateListener: function () {\n    this.el.sceneEl.addEventListener('controllersupdated', this.onControllersUpdate, false);\n  },\n\n  removeControllersUpdateListener: function () {\n    this.el.sceneEl.removeEventListener('controllersupdated', this.onControllersUpdate, false);\n  },\n\n  onControllersUpdate: function () {\n    this.checkIfControllerPresent();\n  },\n\n  onModelLoaded: function (evt) {\n    var controllerObject3D = evt.detail.model;\n    var buttonMeshes;\n    if (!this.data.model) { return; }\n    buttonMeshes = this.buttonMeshes = {};\n    buttonMeshes.menu = controllerObject3D.getObjectByName('AppButton_AppButton_Cylinder.004');\n    buttonMeshes.system = controllerObject3D.getObjectByName('HomeButton_HomeButton_Cylinder.005');\n    buttonMeshes.trackpad = controllerObject3D.getObjectByName('TouchPad_TouchPad_Cylinder.003');\n    // Offset pivot point.\n    controllerObject3D.position.set(0, 0, -0.04);\n  },\n\n  onAxisMoved: function (evt) {\n    this.emitIfAxesChanged(this, this.mapping.axes, evt);\n  },\n\n  onButtonChanged: function (evt) {\n    var button = this.mapping.buttons[evt.detail.id];\n    if (!button) return;\n    // Pass along changed event with button state, using button mapping for convenience.\n    this.el.emit(button + 'changed', evt.detail.state);\n  },\n\n  updateModel: function (buttonName, evtName) {\n    if (!this.data.model) { return; }\n    this.updateButtonModel(buttonName, evtName);\n  },\n\n  updateButtonModel: function (buttonName, state) {\n    var buttonMeshes = this.buttonMeshes;\n    if (!buttonMeshes || !buttonMeshes[buttonName]) { return; }\n    var color;\n    switch (state) {\n      case 'down':\n        color = this.data.buttonHighlightColor;\n        break;\n      case 'touchstart':\n        color = this.data.buttonTouchedColor;\n        break;\n      default:\n        color = this.data.buttonColor;\n    }\n    buttonMeshes[buttonName].material.color.set(color);\n  }\n});\n","var registerComponent = require('../core/component').registerComponent;\nvar bind = require('../utils/bind');\nvar trackedControlsUtils = require('../utils/tracked-controls');\nvar checkControllerPresentAndSetup = trackedControlsUtils.checkControllerPresentAndSetup;\nvar emitIfAxesChanged = trackedControlsUtils.emitIfAxesChanged;\nvar onButtonEvent = trackedControlsUtils.onButtonEvent;\n\nvar GEARVR_CONTROLLER_MODEL_BASE_URL = 'https://cdn.aframe.io/controllers/samsung/';\nvar GEARVR_CONTROLLER_MODEL_OBJ_URL = GEARVR_CONTROLLER_MODEL_BASE_URL + 'gear_vr_controller.obj';\nvar GEARVR_CONTROLLER_MODEL_OBJ_MTL = GEARVR_CONTROLLER_MODEL_BASE_URL + 'gear_vr_controller.mtl';\n\nvar GAMEPAD_ID_PREFIX = 'Gear VR';\n\n/**\n * Gear VR controls.\n * Interface with Gear VR controller and map Gamepad events to\n * controller buttons: trackpad, trigger\n * Load a controller model and highlight the pressed buttons.\n */\nmodule.exports.Component = registerComponent('gearvr-controls', {\n  schema: {\n    hand: {default: ''},  // This informs the degenerate arm model.\n    buttonColor: {type: 'color', default: '#000000'},\n    buttonTouchedColor: {type: 'color', default: '#777777'},\n    buttonHighlightColor: {type: 'color', default: '#FFFFFF'},\n    model: {default: true},\n    rotationOffset: {default: 0},\n    armModel: {default: true}\n  },\n\n  /**\n   * Button IDs:\n   * 0 - trackpad\n   * 1 - trigger\n   */\n  mapping: {\n    axes: {trackpad: [0, 1]},\n    buttons: ['trackpad', 'trigger']\n  },\n\n  bindMethods: function () {\n    this.onModelLoaded = bind(this.onModelLoaded, this);\n    this.onControllersUpdate = bind(this.onControllersUpdate, this);\n    this.checkIfControllerPresent = bind(this.checkIfControllerPresent, this);\n    this.removeControllersUpdateListener = bind(this.removeControllersUpdateListener, this);\n    this.onAxisMoved = bind(this.onAxisMoved, this);\n  },\n\n  init: function () {\n    var self = this;\n    this.animationActive = 'pointing';\n    this.onButtonChanged = bind(this.onButtonChanged, this);\n    this.onButtonDown = function (evt) { onButtonEvent(evt.detail.id, 'down', self); };\n    this.onButtonUp = function (evt) { onButtonEvent(evt.detail.id, 'up', self); };\n    this.onButtonTouchStart = function (evt) { onButtonEvent(evt.detail.id, 'touchstart', self); };\n    this.onButtonTouchEnd = function (evt) { onButtonEvent(evt.detail.id, 'touchend', self); };\n    this.onAxisMoved = bind(this.onAxisMoved, this);\n    this.controllerPresent = false;\n    this.lastControllerCheck = 0;\n    this.bindMethods();\n    this.checkControllerPresentAndSetup = checkControllerPresentAndSetup;  // To allow mock.\n    this.emitIfAxesChanged = emitIfAxesChanged;  // To allow mock.\n  },\n\n  addEventListeners: function () {\n    var el = this.el;\n    el.addEventListener('buttonchanged', this.onButtonChanged);\n    el.addEventListener('buttondown', this.onButtonDown);\n    el.addEventListener('buttonup', this.onButtonUp);\n    el.addEventListener('touchstart', this.onButtonTouchStart);\n    el.addEventListener('touchend', this.onButtonTouchEnd);\n    el.addEventListener('model-loaded', this.onModelLoaded);\n    el.addEventListener('axismove', this.onAxisMoved);\n    this.controllerEventsActive = true;\n    this.addControllersUpdateListener();\n  },\n\n  removeEventListeners: function () {\n    var el = this.el;\n    el.removeEventListener('buttonchanged', this.onButtonChanged);\n    el.removeEventListener('buttondown', this.onButtonDown);\n    el.removeEventListener('buttonup', this.onButtonUp);\n    el.removeEventListener('touchstart', this.onButtonTouchStart);\n    el.removeEventListener('touchend', this.onButtonTouchEnd);\n    el.removeEventListener('model-loaded', this.onModelLoaded);\n    el.removeEventListener('axismove', this.onAxisMoved);\n    this.controllerEventsActive = false;\n    this.removeControllersUpdateListener();\n  },\n\n  checkIfControllerPresent: function () {\n    this.checkControllerPresentAndSetup(this, GAMEPAD_ID_PREFIX,\n                                        this.data.hand ? {hand: this.data.hand} : {});\n  },\n\n  play: function () {\n    this.checkIfControllerPresent();\n    this.addControllersUpdateListener();\n  },\n\n  pause: function () {\n    this.removeEventListeners();\n    this.removeControllersUpdateListener();\n  },\n\n  injectTrackedControls: function () {\n    var el = this.el;\n    var data = this.data;\n    el.setAttribute('tracked-controls', {\n      armModel: data.armModel,\n      idPrefix: GAMEPAD_ID_PREFIX,\n      rotationOffset: data.rotationOffset\n    });\n    if (!this.data.model) { return; }\n    this.el.setAttribute('obj-model', {\n      obj: GEARVR_CONTROLLER_MODEL_OBJ_URL,\n      mtl: GEARVR_CONTROLLER_MODEL_OBJ_MTL\n    });\n  },\n\n  addControllersUpdateListener: function () {\n    this.el.sceneEl.addEventListener('controllersupdated', this.onControllersUpdate, false);\n  },\n\n  removeControllersUpdateListener: function () {\n    this.el.sceneEl.removeEventListener('controllersupdated', this.onControllersUpdate, false);\n  },\n\n  onControllersUpdate: function () {\n    this.checkIfControllerPresent();\n  },\n\n  // No need for onButtonChanged, since Gear VR controller has no analog buttons.\n\n  onModelLoaded: function (evt) {\n    var controllerObject3D = evt.detail.model;\n    var buttonMeshes;\n    if (!this.data.model) { return; }\n    buttonMeshes = this.buttonMeshes = {};\n    buttonMeshes.trigger = controllerObject3D.children[2];\n    buttonMeshes.trackpad = controllerObject3D.children[1];\n  },\n\n  onButtonChanged: function (evt) {\n    var button = this.mapping.buttons[evt.detail.id];\n    if (!button) return;\n    // Pass along changed event with button state, using button mapping for convenience.\n    this.el.emit(button + 'changed', evt.detail.state);\n  },\n\n  onAxisMoved: function (evt) {\n    this.emitIfAxesChanged(this, this.mapping.axes, evt);\n  },\n\n  updateModel: function (buttonName, evtName) {\n    if (!this.data.model) { return; }\n    this.updateButtonModel(buttonName, evtName);\n  },\n\n  updateButtonModel: function (buttonName, state) {\n    var buttonMeshes = this.buttonMeshes;\n    if (!buttonMeshes || !buttonMeshes[buttonName]) { return; }\n    var color;\n    switch (state) {\n      case 'down':\n        color = this.data.buttonHighlightColor;\n        break;\n      case 'touchstart':\n        color = this.data.buttonTouchedColor;\n        break;\n      default:\n        color = this.data.buttonColor;\n    }\n    buttonMeshes[buttonName].material.color.set(color);\n  }\n});\n","var geometries = require('../core/geometry').geometries;\nvar geometryNames = require('../core/geometry').geometryNames;\nvar registerComponent = require('../core/component').registerComponent;\nvar THREE = require('../lib/three');\n\nvar dummyGeometry = new THREE.Geometry();\n\n/**\n * Geometry component. Combined with material component to make a mesh in 3D object.\n * Extended with registered geometries.\n */\nmodule.exports.Component = registerComponent('geometry', {\n  schema: {\n    buffer: {default: true},\n    primitive: {default: 'box', oneOf: geometryNames},\n    skipCache: {default: false}\n  },\n\n  init: function () {\n    this.geometry = null;\n  },\n\n  /**\n   * Talk to geometry system to get or create geometry.\n   */\n  update: function (previousData) {\n    var data = this.data;\n    var el = this.el;\n    var mesh;\n    var system = this.system;\n\n    // Dispose old geometry if we created one.\n    if (this.geometry) {\n      system.unuseGeometry(previousData);\n      this.geometry = null;\n    }\n\n    // Create new geometry.\n    this.geometry = system.getOrCreateGeometry(data);\n\n    // Set on mesh. If mesh does not exist, create it.\n    mesh = el.getObject3D('mesh');\n    if (mesh) {\n      mesh.geometry = this.geometry;\n    } else {\n      mesh = new THREE.Mesh();\n      mesh.geometry = this.geometry;\n      el.setObject3D('mesh', mesh);\n    }\n  },\n\n  /**\n   * Tell geometry system that entity is no longer using the geometry.\n   * Unset the geometry on the mesh\n   */\n  remove: function () {\n    this.system.unuseGeometry(this.data);\n    this.el.getObject3D('mesh').geometry = dummyGeometry;\n    this.geometry = null;\n  },\n\n  /**\n   * Update geometry component schema based on geometry type.\n   *\n   * @param {object} data - New data passed by Component.\n   */\n  updateSchema: function (data) {\n    var newGeometryType = data.primitive;\n    var currentGeometryType = this.data && this.data.primitive;\n    var schema = geometries[newGeometryType] && geometries[newGeometryType].schema;\n\n    // Geometry has no schema.\n    if (!schema) { throw new Error('Unknown geometry schema `' + newGeometryType + '`'); }\n    // Nothing has changed.\n    if (currentGeometryType && currentGeometryType === newGeometryType) { return; }\n\n    this.extendSchema(schema);\n  }\n});\n","var registerComponent = require('../core/component').registerComponent;\nvar THREE = require('../lib/three');\nvar utils = require('../utils/');\nvar warn = utils.debug('components:gltf-model:warn');\n\n/**\n * glTF model loader.\n */\nmodule.exports.Component = registerComponent('gltf-model', {\n  schema: {type: 'model'},\n\n  init: function () {\n    this.model = null;\n    this.loader = new THREE.GLTFLoader();\n  },\n\n  update: function () {\n    var self = this;\n    var el = this.el;\n    var src = this.data;\n\n    if (!src) { return; }\n\n    this.remove();\n\n    this.loader.load(src, function gltfLoaded (gltfModel) {\n      self.model = gltfModel.scene || gltfModel.scenes[0];\n      self.model.animations = gltfModel.animations;\n      el.setObject3D('mesh', self.model);\n      el.emit('model-loaded', {format: 'gltf', model: self.model});\n    }, undefined /* onProgress */, function gltfFailed (error) {\n      var message = (error && error.message) ? error.message : 'Failed to load glTF model';\n      warn(message);\n      el.emit('model-error', {format: 'gltf', src: src});\n    });\n  },\n\n  remove: function () {\n    if (!this.model) { return; }\n    this.el.removeObject3D('mesh');\n  }\n});\n","/* global THREE */\nvar registerComponent = require('../core/component').registerComponent;\n\n// Found at https://github.com/aframevr/assets.\nvar MODEL_URLS = {\n  left: 'https://cdn.aframe.io/controllers/oculus-hands/v2/leftHand.json',\n  right: 'https://cdn.aframe.io/controllers/oculus-hands/v2/rightHand.json'\n};\n\n// Poses.\nvar ANIMATIONS = {\n  open: 'Open',\n  // point: grip active, trackpad surface active, trigger inactive.\n  point: 'Point',\n  // pointThumb: grip active, trigger inactive, trackpad surface inactive.\n  pointThumb: 'Point + Thumb',\n  // fist: grip active, trigger active, trackpad surface active.\n  fist: 'Fist',\n  // hold: trigger active, grip inactive.\n  hold: 'Hold',\n  // thumbUp: grip active, trigger active, trackpad surface inactive.\n  thumbUp: 'Thumb Up'\n};\n\n// Map animation to public events for the API.\nvar EVENTS = {};\nEVENTS[ANIMATIONS.fist] = 'grip';\nEVENTS[ANIMATIONS.thumbUp] = 'pistol';\nEVENTS[ANIMATIONS.point] = 'pointing';\nEVENTS[ANIMATIONS.thumb] = 'thumb';\n\n/**\n * Hand controls component that abstracts 6DoF controls:\n *   oculus-touch-controls, vive-controls, windows-motion-controls.\n *\n * Originally meant to be a sample implementation of applications-specific controls that\n * abstracts multiple types of controllers.\n *\n * Auto-detect appropriate controller.\n * Handle common events coming from the detected vendor-specific controls.\n * Translate button events to semantic hand-related event names:\n *   (gripclose, gripopen, thumbup, thumbdown, pointup, pointdown)\n * Load hand model with gestures that are applied based on the button pressed.\n *\n * @property {string} Hand mapping (`left`, `right`).\n */\nmodule.exports.Component = registerComponent('hand-controls', {\n  schema: {default: 'left'},\n\n  init: function () {\n    var self = this;\n    var el = this.el;\n    // Current pose.\n    this.gesture = ANIMATIONS.open;\n    // Active buttons populated by events provided by the attached controls.\n    this.pressedButtons = {};\n    this.touchedButtons = {};\n    this.loader = new THREE.ObjectLoader();\n    this.loader.setCrossOrigin('anonymous');\n\n    this.onGripDown = function () { self.handleButton('grip', 'down'); };\n    this.onGripUp = function () { self.handleButton('grip', 'up'); };\n    this.onTrackpadDown = function () { self.handleButton('trackpad', 'down'); };\n    this.onTrackpadUp = function () { self.handleButton('trackpad', 'up'); };\n    this.onTrackpadTouchStart = function () { self.handleButton('trackpad', 'touchstart'); };\n    this.onTrackpadTouchEnd = function () { self.handleButton('trackpad', 'touchend'); };\n    this.onTriggerDown = function () { self.handleButton('trigger', 'down'); };\n    this.onTriggerUp = function () { self.handleButton('trigger', 'up'); };\n    this.onTriggerTouchStart = function () { self.handleButton('trigger', 'touchstart'); };\n    this.onTriggerTouchEnd = function () { self.handleButton('trigger', 'touchend'); };\n    this.onGripTouchStart = function () { self.handleButton('grip', 'touchstart'); };\n    this.onGripTouchEnd = function () { self.handleButton('grip', 'touchend'); };\n    this.onThumbstickDown = function () { self.handleButton('thumbstick', 'down'); };\n    this.onThumbstickUp = function () { self.handleButton('thumbstick', 'up'); };\n    this.onAorXTouchStart = function () { self.handleButton('AorX', 'touchstart'); };\n    this.onAorXTouchEnd = function () { self.handleButton('AorX', 'touchend'); };\n    this.onBorYTouchStart = function () { self.handleButton('BorY', 'touchstart'); };\n    this.onBorYTouchEnd = function () { self.handleButton('BorY', 'touchend'); };\n    this.onSurfaceTouchStart = function () { self.handleButton('surface', 'touchstart'); };\n    this.onSurfaceTouchEnd = function () { self.handleButton('surface', 'touchend'); };\n    this.onControllerConnected = function () { self.setModelVisibility(true); };\n    this.onControllerDisconnected = function () { self.setModelVisibility(false); };\n\n    el.addEventListener('controllerconnected', this.onControllerConnected);\n    el.addEventListener('controllerdisconnected', this.onControllerDisconnected);\n  },\n\n  play: function () {\n    this.addEventListeners();\n  },\n\n  pause: function () {\n    this.removeEventListeners();\n  },\n\n  tick: function (time, delta) {\n    var mesh = this.el.getObject3D('mesh');\n\n    if (!mesh || !mesh.mixer) { return; }\n\n    mesh.mixer.update(delta / 1000);\n  },\n\n  addEventListeners: function () {\n    var el = this.el;\n    el.addEventListener('gripdown', this.onGripDown);\n    el.addEventListener('gripup', this.onGripUp);\n    el.addEventListener('trackpaddown', this.onTrackpadDown);\n    el.addEventListener('trackpadup', this.onTrackpadUp);\n    el.addEventListener('trackpadtouchstart', this.onTrackpadTouchStart);\n    el.addEventListener('trackpadtouchend', this.onTrackpadTouchEnd);\n    el.addEventListener('triggerdown', this.onTriggerDown);\n    el.addEventListener('triggerup', this.onTriggerUp);\n    el.addEventListener('triggertouchstart', this.onTriggerTouchStart);\n    el.addEventListener('triggertouchend', this.onTriggerTouchEnd);\n    el.addEventListener('griptouchstart', this.onGripTouchStart);\n    el.addEventListener('griptouchend', this.onGripTouchEnd);\n    el.addEventListener('thumbstickdown', this.onThumbstickDown);\n    el.addEventListener('thumbstickup', this.onThumbstickUp);\n    el.addEventListener('abuttontouchstart', this.onAorXTouchStart);\n    el.addEventListener('abuttontouchend', this.onAorXTouchEnd);\n    el.addEventListener('bbuttontouchstart', this.onBorYTouchStart);\n    el.addEventListener('bbuttontouchend', this.onBorYTouchEnd);\n    el.addEventListener('xbuttontouchstart', this.onAorXTouchStart);\n    el.addEventListener('xbuttontouchend', this.onAorXTouchEnd);\n    el.addEventListener('ybuttontouchstart', this.onBorYTouchStart);\n    el.addEventListener('ybuttontouchend', this.onBorYTouchEnd);\n    el.addEventListener('surfacetouchstart', this.onSurfaceTouchStart);\n    el.addEventListener('surfacetouchend', this.onSurfaceTouchEnd);\n  },\n\n  removeEventListeners: function () {\n    var el = this.el;\n    el.removeEventListener('gripdown', this.onGripDown);\n    el.removeEventListener('gripup', this.onGripUp);\n    el.removeEventListener('trackpaddown', this.onTrackpadDown);\n    el.removeEventListener('trackpadup', this.onTrackpadUp);\n    el.removeEventListener('trackpadtouchstart', this.onTrackpadTouchStart);\n    el.removeEventListener('trackpadtouchend', this.onTrackpadTouchEnd);\n    el.removeEventListener('triggerdown', this.onTriggerDown);\n    el.removeEventListener('triggerup', this.onTriggerUp);\n    el.removeEventListener('triggertouchstart', this.onTriggerTouchStart);\n    el.removeEventListener('triggertouchend', this.onTriggerTouchEnd);\n    el.removeEventListener('griptouchstart', this.onGripTouchStart);\n    el.removeEventListener('griptouchend', this.onGripTouchEnd);\n    el.removeEventListener('thumbstickdown', this.onThumbstickDown);\n    el.removeEventListener('thumbstickup', this.onThumbstickUp);\n    el.removeEventListener('abuttontouchstart', this.onAorXTouchStart);\n    el.removeEventListener('abuttontouchend', this.onAorXTouchEnd);\n    el.removeEventListener('bbuttontouchstart', this.onBorYTouchStart);\n    el.removeEventListener('bbuttontouchend', this.onBorYTouchEnd);\n    el.removeEventListener('xbuttontouchstart', this.onAorXTouchStart);\n    el.removeEventListener('xbuttontouchend', this.onAorXTouchEnd);\n    el.removeEventListener('ybuttontouchstart', this.onBorYTouchStart);\n    el.removeEventListener('ybuttontouchend', this.onBorYTouchEnd);\n    el.removeEventListener('surfacetouchstart', this.onSurfaceTouchStart);\n    el.removeEventListener('surfacetouchend', this.onSurfaceTouchEnd);\n  },\n\n  /**\n   * Update handler. More like the `init` handler since the only property is the hand, and\n   * that won't be changing much.\n   */\n  update: function (previousHand) {\n    var controlConfiguration;\n    var el = this.el;\n    var hand = this.data;\n\n    // Get common configuration to abstract different vendor controls.\n    controlConfiguration = {\n      hand: hand,\n      model: false,\n      rotationOffset: hand === 'left' ? 90 : -90\n    };\n\n    // Set model.\n    if (hand !== previousHand) {\n      this.loader.load(MODEL_URLS[hand], function (scene) {\n        var mesh = scene.getObjectByName('Hand');\n        mesh.material.skinning = true;\n        mesh.mixer = new THREE.AnimationMixer(mesh);\n        el.setObject3D('mesh', mesh);\n        mesh.position.set(0, 0, 0);\n        mesh.rotation.set(0, 0, 0);\n        // hidden by default\n        mesh.visible = false;\n        el.setAttribute('vive-controls', controlConfiguration);\n        el.setAttribute('oculus-touch-controls', controlConfiguration);\n        el.setAttribute('windows-motion-controls', controlConfiguration);\n      });\n    }\n  },\n\n  remove: function () {\n    this.el.removeObject3D('mesh');\n  },\n\n  /**\n   * Play model animation, based on which button was pressed and which kind of event.\n   *\n   * 1. Process buttons.\n   * 2. Determine gesture (this.determineGesture()).\n   * 3. Animation gesture (this.animationGesture()).\n   * 4. Emit gesture events (this.emitGestureEvents()).\n   *\n   * @param {string} button - Name of the button.\n   * @param {string} evt - Type of event for the button (i.e., down/up/touchstart/touchend).\n   */\n  handleButton: function (button, evt) {\n    var lastGesture;\n    var isPressed = evt === 'down';\n    var isTouched = evt === 'touchstart';\n\n    // Update objects.\n    if (evt.indexOf('touch') === 0) {\n      // Update touch object.\n      if (isTouched === this.touchedButtons[button]) { return; }\n      this.touchedButtons[button] = isTouched;\n    } else {\n      // Update button object.\n      if (isPressed === this.pressedButtons[button]) { return; }\n      this.pressedButtons[button] = isPressed;\n    }\n\n    // Determine the gesture.\n    lastGesture = this.gesture;\n    this.gesture = this.determineGesture();\n\n    // Same gesture.\n    if (this.gesture === lastGesture) { return; }\n\n    // Animate gesture.\n    this.animateGesture(this.gesture, lastGesture);\n\n    // Emit events.\n    this.emitGestureEvents(this.gesture, lastGesture);\n  },\n\n  /**\n   * Determine which pose hand should be in considering active and touched buttons.\n   */\n  determineGesture: function () {\n    var gesture;\n    var isGripActive = this.pressedButtons['grip'];\n    var isSurfaceActive = this.pressedButtons['surface'] || this.touchedButtons['surface'];\n    var isTrackpadActive = this.pressedButtons['trackpad'] || this.touchedButtons['trackpad'];\n    var isTriggerActive = this.pressedButtons['trigger'] || this.touchedButtons['trigger'];\n    var isABXYActive = this.touchedButtons['AorX'] || this.touchedButtons['BorY'];\n    var isVive = isViveController(this.el.components['tracked-controls']);\n\n    // Works well with Oculus Touch and Windows Motion Controls, but Vive needs tweaks.\n    if (isGripActive) {\n      if (isVive) {\n        gesture = ANIMATIONS.fist;\n      } else\n        if (isSurfaceActive || isABXYActive || isTrackpadActive) {\n          gesture = isTriggerActive ? ANIMATIONS.fist : ANIMATIONS.point;\n        } else {\n          gesture = isTriggerActive ? ANIMATIONS.thumbUp : ANIMATIONS.pointThumb;\n        }\n    } else {\n      if (isTriggerActive) {\n        gesture = !isVive ? ANIMATIONS.hold : ANIMATIONS.fist;\n      } else if (isVive && isTrackpadActive) {\n        gesture = ANIMATIONS.point;\n      }\n    }\n\n    return gesture;\n  },\n\n  /**\n   * Play gesture animation.\n   *\n   * @param {string} gesture - Which pose to animate to. If absent, then animate to open.\n   * @param {string} lastGesture - Previous gesture, to reverse back to open if needed.\n   */\n  animateGesture: function (gesture, lastGesture) {\n    if (gesture) {\n      this.playAnimation(gesture || ANIMATIONS.open, lastGesture, false);\n      return;\n    }\n    // If no gesture, then reverse the current gesture back to open pose.\n    this.playAnimation(lastGesture, lastGesture, true);\n  },\n\n  /**\n   * Emit `hand-controls`-specific events.\n   */\n  emitGestureEvents: function (gesture, lastGesture) {\n    var el = this.el;\n    var eventName;\n\n    if (lastGesture === gesture) { return; }\n\n    // Emit event for lastGesture not inactive.\n    eventName = getGestureEventName(lastGesture, false);\n    if (eventName) { el.emit(eventName); }\n\n    // Emit event for current gesture now active.\n    eventName = getGestureEventName(gesture, true);\n    if (eventName) { el.emit(eventName); }\n  },\n\n/**\n  * Play hand animation based on button state.\n  *\n  * @param {string} gesture - Name of the animation as specified by the model.\n  * @param {string} lastGesture - Previous pose.\n  * @param {boolean} reverse - Whether animation should play in reverse.\n  */\n  playAnimation: function (gesture, lastGesture, reverse) {\n    var fromAction;\n    var mesh = this.el.getObject3D('mesh');\n    var toAction;\n\n    if (!mesh) { return; }\n\n    // Grab clip action.\n    toAction = mesh.mixer.clipAction(gesture);\n    toAction.clampWhenFinished = true;\n    toAction.loop = THREE.PingPong;\n    toAction.repetitions = 0;\n    toAction.timeScale = reverse ? -1 : 1;\n    toAction.weight = 1;\n\n    // No gesture to gesture or gesture to no gesture.\n    if (!lastGesture || gesture === lastGesture) {\n      // Stop all current animations.\n      mesh.mixer.stopAllAction();\n\n      // Play animation.\n      toAction.play();\n      return;\n    }\n\n    // Animate or crossfade from gesture to gesture.\n    fromAction = mesh.mixer.clipAction(lastGesture);\n    mesh.mixer.stopAllAction();\n    fromAction.weight = 0.15;\n    fromAction.play();\n    toAction.play();\n    fromAction.crossFadeTo(toAction, 0.15, true);\n  },\n\n  setModelVisibility: function (visible) {\n    var model = this.el.getObject3D('mesh');\n    if (!model) { return; }\n    model.visible = visible;\n  }\n});\n\n/**\n * Suffix gestures based on toggle state (e.g., open/close, up/down, start/end).\n *\n * @param {string} gesture\n * @param {boolean} active\n */\nfunction getGestureEventName (gesture, active) {\n  var eventName;\n\n  if (!gesture) { return; }\n\n  eventName = EVENTS[gesture];\n  if (eventName === 'grip') {\n    return eventName + (active ? 'close' : 'open');\n  }\n  if (eventName === 'point' || eventName === 'thumb') {\n    return eventName + (active ? 'up' : 'down');\n  }\n  if (eventName === 'pointing' || eventName === 'pistol') {\n    return eventName + (active ? 'start' : 'end');\n  }\n  return;\n}\n\nfunction isViveController (trackedControls) {\n  var controllerId = trackedControls && trackedControls.controller &&\n                     trackedControls.controller.id;\n  return controllerId && controllerId.indexOf('OpenVR ') === 0;\n}\n","require('./camera');\nrequire('./collada-model');\nrequire('./cursor');\nrequire('./daydream-controls');\nrequire('./gearvr-controls');\nrequire('./geometry');\nrequire('./gltf-model');\nrequire('./hand-controls');\nrequire('./laser-controls');\nrequire('./light');\nrequire('./line');\nrequire('./link');\nrequire('./look-controls');\nrequire('./material');\nrequire('./obj-model');\nrequire('./oculus-touch-controls');\nrequire('./position');\nrequire('./raycaster');\nrequire('./rotation');\nrequire('./scale');\nrequire('./shadow');\nrequire('./sound');\nrequire('./text');\nrequire('./tracked-controls');\nrequire('./visible');\nrequire('./vive-controls');\nrequire('./wasd-controls');\nrequire('./windows-motion-controls');\n\nrequire('./scene/debug');\nrequire('./scene/embedded');\nrequire('./scene/inspector');\nrequire('./scene/fog');\nrequire('./scene/keyboard-shortcuts');\nrequire('./scene/pool');\nrequire('./scene/screenshot');\nrequire('./scene/stats');\nrequire('./scene/vr-mode-ui');\n","var registerComponent = require('../core/component').registerComponent;\nvar utils = require('../utils/');\n\nregisterComponent('laser-controls', {\n  schema: {\n    hand: {default: 'right'}\n  },\n\n  init: function () {\n    var config = this.config;\n    var data = this.data;\n    var el = this.el;\n    var self = this;\n\n    // Set all controller models.\n    el.setAttribute('daydream-controls', {hand: data.hand});\n    el.setAttribute('gearvr-controls', {hand: data.hand});\n    el.setAttribute('oculus-touch-controls', {hand: data.hand});\n    el.setAttribute('vive-controls', {hand: data.hand});\n    el.setAttribute('windows-motion-controls', {hand: data.hand});\n\n    // Wait for controller to connect, or have a valid pointing pose, before creating ray\n    el.addEventListener('controllerconnected', createRay);\n    el.addEventListener('controllerdisconnected', hideRay);\n    el.addEventListener('controllermodelready', function (evt) {\n      createRay(evt);\n      self.modelReady = true;\n    });\n\n    function createRay (evt) {\n      var controllerConfig = config[evt.detail.name];\n\n      if (!controllerConfig) { return; }\n\n      // Show the line unless a particular config opts to hide it, until a controllermodelready\n      // event comes through.\n      var raycasterConfig = utils.extend({\n        showLine: true\n      }, controllerConfig.raycaster || {});\n\n      // The controllermodelready event contains a rayOrigin that takes into account\n      // offsets specific to the loaded model.\n      if (evt.detail.rayOrigin) {\n        raycasterConfig.origin = evt.detail.rayOrigin.origin;\n        raycasterConfig.direction = evt.detail.rayOrigin.direction;\n        raycasterConfig.showLine = true;\n      }\n\n      // Only apply a default raycaster if it does not yet exist. This prevents it overwriting\n      // config applied from a controllermodelready event.\n      if (evt.detail.rayOrigin || !self.modelReady) {\n        el.setAttribute('raycaster', raycasterConfig);\n      } else {\n        el.setAttribute('raycaster', 'showLine', true);\n      }\n\n      el.setAttribute('cursor', utils.extend({\n        fuse: false\n      }, controllerConfig.cursor));\n    }\n\n    function hideRay () {\n      el.setAttribute('raycaster', 'showLine', false);\n    }\n  },\n\n  config: {\n    'daydream-controls': {\n      cursor: {downEvents: ['trackpaddown'], upEvents: ['trackpadup']}\n    },\n\n    'gearvr-controls': {\n      cursor: {downEvents: ['trackpaddown'], upEvents: ['trackpadup']},\n      raycaster: {origin: {x: 0, y: 0.0005, z: 0}}\n    },\n\n    'oculus-touch-controls': {\n      cursor: {downEvents: ['triggerdown'], upEvents: ['triggerup']},\n      raycaster: {origin: {x: 0.001, y: 0, z: 0.065}, direction: {x: 0, y: -0.8, z: -1}}\n    },\n\n    'vive-controls': {\n      cursor: {downEvents: ['triggerdown'], upEvents: ['triggerup']}\n    },\n\n    'windows-motion-controls': {\n      cursor: {downEvents: ['triggerdown'], upEvents: ['triggerup']},\n      raycaster: {showLine: false}\n    }\n  }\n});\n","var bind = require('../utils/bind');\nvar diff = require('../utils').diff;\nvar debug = require('../utils/debug');\nvar registerComponent = require('../core/component').registerComponent;\nvar THREE = require('../lib/three');\n\nvar degToRad = THREE.Math.degToRad;\nvar warn = debug('components:light:warn');\n\n/**\n * Light component.\n */\nmodule.exports.Component = registerComponent('light', {\n  schema: {\n    angle: {default: 60, if: {type: ['spot']}},\n    color: {type: 'color'},\n    groundColor: {type: 'color', if: {type: ['hemisphere']}},\n    decay: {default: 1, if: {type: ['point', 'spot']}},\n    distance: {default: 0.0, min: 0, if: {type: ['point', 'spot']}},\n    intensity: {default: 1.0, min: 0, if: {type: ['ambient', 'directional', 'hemisphere', 'point', 'spot']}},\n    penumbra: {default: 0, min: 0, max: 1, if: {type: ['spot']}},\n    type: {default: 'directional', oneOf: ['ambient', 'directional', 'hemisphere', 'point', 'spot']},\n    target: {type: 'selector', if: {type: ['spot', 'directional']}},\n\n    // Shadows.\n    castShadow: {default: false, if: {type: ['point', 'spot', 'directional']}},\n    shadowBias: {default: 0, if: {castShadow: true}},\n    shadowCameraFar: {default: 500, if: {castShadow: true}},\n    shadowCameraFov: {default: 90, if: {castShadow: true}},\n    shadowCameraNear: {default: 0.5, if: {castShadow: true}},\n    shadowCameraTop: {default: 5, if: {castShadow: true}},\n    shadowCameraRight: {default: 5, if: {castShadow: true}},\n    shadowCameraBottom: {default: -5, if: {castShadow: true}},\n    shadowCameraLeft: {default: -5, if: {castShadow: true}},\n    shadowCameraVisible: {default: false, if: {castShadow: true}},\n    shadowMapHeight: {default: 512, if: {castShadow: true}},\n    shadowMapWidth: {default: 512, if: {castShadow: true}}\n  },\n\n  /**\n   * Notifies scene a light has been added to remove default lighting.\n   */\n  init: function () {\n    var el = this.el;\n    this.light = null;\n    this.defaultTarget = null;\n    this.system.registerLight(el);\n  },\n\n  /**\n   * (Re)create or update light.\n   */\n  update: function (oldData) {\n    var data = this.data;\n    var diffData = diff(data, oldData);\n    var light = this.light;\n    var self = this;\n\n    // Existing light.\n    if (light && !('type' in diffData)) {\n      var shadowsLoaded = false;\n      // Light type has not changed. Update light.\n      Object.keys(diffData).forEach(function (key) {\n        var value = data[key];\n\n        switch (key) {\n          case 'color': {\n            light.color.set(value);\n            break;\n          }\n\n          case 'groundColor': {\n            light.groundColor.set(value);\n            break;\n          }\n\n          case 'angle': {\n            light.angle = degToRad(value);\n            break;\n          }\n\n          case 'target': {\n            // Reset target if selector is null.\n            if (value === null) {\n              if (data.type === 'spot' || data.type === 'directional') {\n                light.target = self.defaultTarget;\n              }\n            } else {\n              // Target specified, set target to entity's `object3D` when it is loaded.\n              if (value.hasLoaded) {\n                self.onSetTarget(value, light);\n              } else {\n                value.addEventListener('loaded', bind(self.onSetTarget, self, value, light));\n              }\n            }\n            break;\n          }\n\n          case 'castShadow':\n          case 'shadowBias':\n          case 'shadowCameraFar':\n          case 'shadowCameraFov':\n          case 'shadowCameraNear':\n          case 'shadowCameraTop':\n          case 'shadowCameraRight':\n          case 'shadowCameraBottom':\n          case 'shadowCameraLeft':\n          case 'shadowCameraVisible':\n          case 'shadowMapHeight':\n          case 'shadowMapWidth':\n            if (!shadowsLoaded) {\n              self.updateShadow();\n              shadowsLoaded = true;\n            }\n            break;\n\n          default: {\n            light[key] = value;\n          }\n        }\n      });\n      return;\n    }\n\n    // No light yet or light type has changed. Create and add light.\n    this.setLight(this.data);\n    this.updateShadow();\n  },\n\n  setLight: function (data) {\n    var el = this.el;\n    var newLight = this.getLight(data);\n    if (newLight) {\n      if (this.light) {\n        el.removeObject3D('light');\n      }\n\n      this.light = newLight;\n      this.light.el = el;\n      el.setObject3D('light', this.light);\n\n      // HACK solution for issue #1624\n      if (data.type === 'spot' || data.type === 'directional' || data.type === 'hemisphere') {\n        el.getObject3D('light').translateY(-1);\n      }\n\n      // set and position default lighttarget as a child to enable spotlight orientation\n      if (data.type === 'spot') {\n        el.setObject3D('light-target', this.defaultTarget);\n        el.getObject3D('light-target').position.set(0, 0, -1);\n      }\n    }\n  },\n\n  /**\n   * Updates shadow-related properties on the current light.\n   */\n  updateShadow: function () {\n    var el = this.el;\n    var data = this.data;\n    var light = this.light;\n\n    light.castShadow = data.castShadow;\n\n    // Shadow camera helper.\n    var cameraHelper = el.getObject3D('cameraHelper');\n    if (data.shadowCameraVisible && !cameraHelper) {\n      el.setObject3D('cameraHelper', new THREE.CameraHelper(light.shadow.camera));\n    } else if (!data.shadowCameraVisible && cameraHelper) {\n      el.removeObject3D('cameraHelper');\n    }\n\n    if (!data.castShadow) { return light; }\n\n    // Shadow appearance.\n    light.shadow.bias = data.shadowBias;\n    light.shadow.mapSize.height = data.shadowMapHeight;\n    light.shadow.mapSize.width = data.shadowMapWidth;\n\n    // Shadow camera.\n    light.shadow.camera.near = data.shadowCameraNear;\n    light.shadow.camera.far = data.shadowCameraFar;\n    if (light.shadow.camera instanceof THREE.OrthographicCamera) {\n      light.shadow.camera.top = data.shadowCameraTop;\n      light.shadow.camera.right = data.shadowCameraRight;\n      light.shadow.camera.bottom = data.shadowCameraBottom;\n      light.shadow.camera.left = data.shadowCameraLeft;\n    } else {\n      light.shadow.camera.fov = data.shadowCameraFov;\n    }\n    light.shadow.camera.updateProjectionMatrix();\n\n    if (cameraHelper) { cameraHelper.update(); }\n  },\n\n  /**\n   * Creates a new three.js light object given data object defining the light.\n   *\n   * @param {object} data\n   */\n  getLight: function (data) {\n    var angle = data.angle;\n    var color = new THREE.Color(data.color).getHex();\n    var decay = data.decay;\n    var distance = data.distance;\n    var groundColor = new THREE.Color(data.groundColor).getHex();\n    var intensity = data.intensity;\n    var type = data.type;\n    var target = data.target;\n    var light = null;\n\n    switch (type.toLowerCase()) {\n      case 'ambient': {\n        return new THREE.AmbientLight(color, intensity);\n      }\n\n      case 'directional': {\n        light = new THREE.DirectionalLight(color, intensity);\n        this.defaultTarget = light.target;\n        if (target) {\n          if (target.hasLoaded) {\n            this.onSetTarget(target, light);\n          } else {\n            target.addEventListener('loaded', bind(this.onSetTarget, this, target, light));\n          }\n        }\n        return light;\n      }\n\n      case 'hemisphere': {\n        return new THREE.HemisphereLight(color, groundColor, intensity);\n      }\n\n      case 'point': {\n        return new THREE.PointLight(color, intensity, distance, decay);\n      }\n\n      case 'spot': {\n        light = new THREE.SpotLight(color, intensity, distance, degToRad(angle), data.penumbra, decay);\n        this.defaultTarget = light.target;\n        if (target) {\n          if (target.hasLoaded) {\n            this.onSetTarget(target, light);\n          } else {\n            target.addEventListener('loaded', bind(this.onSetTarget, this, target, light));\n          }\n        }\n        return light;\n      }\n\n      default: {\n        warn('%s is not a valid light type. ' +\n           'Choose from ambient, directional, hemisphere, point, spot.', type);\n      }\n    }\n  },\n\n  onSetTarget: function (targetEl, light) {\n    light.target = targetEl.object3D;\n  },\n\n  /**\n   * Remove light on remove (callback).\n   */\n  remove: function () {\n    var el = this.el;\n    el.removeObject3D('light');\n    if (el.getObject3D('cameraHelper')) {\n      el.removeObject3D('cameraHelper');\n    }\n  }\n});\n","/* global THREE */\nvar registerComponent = require('../core/component').registerComponent;\n\nmodule.exports.Component = registerComponent('line', {\n  schema: {\n    start: {type: 'vec3', default: {x: 0, y: 0, z: 0}},\n    end: {type: 'vec3', default: {x: 0, y: 0, z: 0}},\n    color: {type: 'color', default: '#74BEC1'},\n    opacity: {type: 'number', default: 1},\n    visible: {default: true}\n  },\n\n  multiple: true,\n\n  init: function () {\n    var data = this.data;\n    var geometry;\n    var material;\n    material = this.material = new THREE.LineBasicMaterial({\n      color: data.color,\n      opacity: data.opacity,\n      transparent: data.opacity < 1,\n      visible: data.visible\n    });\n    geometry = this.geometry = new THREE.BufferGeometry();\n    geometry.addAttribute('position', new THREE.BufferAttribute(new Float32Array(2 * 3), 3));\n\n    this.line = new THREE.Line(geometry, material);\n    this.el.setObject3D(this.attrName, this.line);\n  },\n\n  update: function (oldData) {\n    var data = this.data;\n    var geometry = this.geometry;\n    var geoNeedsUpdate = false;\n    var material = this.material;\n    var positionArray = geometry.attributes.position.array;\n\n    // Update geometry.\n    if (!isEqualVec3(data.start, oldData.start)) {\n      positionArray[0] = data.start.x;\n      positionArray[1] = data.start.y;\n      positionArray[2] = data.start.z;\n      geoNeedsUpdate = true;\n    }\n\n    if (!isEqualVec3(data.end, oldData.end)) {\n      positionArray[3] = data.end.x;\n      positionArray[4] = data.end.y;\n      positionArray[5] = data.end.z;\n      geoNeedsUpdate = true;\n    }\n\n    if (geoNeedsUpdate) {\n      geometry.attributes.position.needsUpdate = true;\n      geometry.computeBoundingSphere();\n    }\n\n    material.color.setStyle(data.color);\n    material.opacity = data.opacity;\n    material.transparent = data.opacity < 1;\n    material.visible = data.visible;\n  },\n\n  remove: function () {\n    this.el.removeObject3D('line', this.line);\n  }\n});\n\nfunction isEqualVec3 (a, b) {\n  if (!a || !b) { return false; }\n  return (a.x === b.x && a.y === b.y && a.z === b.z);\n}\n","var registerComponent = require('../core/component').registerComponent;\nvar registerShader = require('../core/shader').registerShader;\nvar THREE = require('../lib/three');\n\n/**\n * Link component. Connect experiences and traverse between them in VR\n *\n * @member {object} hiddenEls - Store the hidden elements during peek mode.\n */\nmodule.exports.Component = registerComponent('link', {\n  schema: {\n    backgroundColor: {default: 'red', type: 'color'},\n    borderColor: {default: 'white', type: 'color'},\n    highlighted: {default: false},\n    highlightedColor: {default: '#24CAFF', type: 'color'},\n    href: {default: ''},\n    image: {type: 'asset'},\n    on: {default: 'click'},\n    peekMode: {default: false},\n    title: {default: ''},\n    titleColor: {default: 'white', type: 'color'},\n    visualAspectEnabled: {default: true}\n  },\n\n  init: function () {\n    this.navigate = this.navigate.bind(this);\n    this.previousQuaternion = undefined;\n    this.quaternionClone = new THREE.Quaternion();\n    // Store hidden elements during peek mode so we can show them again later.\n    this.hiddenEls = [];\n    this.initVisualAspect();\n  },\n\n  update: function (oldData) {\n    var data = this.data;\n    var el = this.el;\n    var backgroundColor;\n    var strokeColor;\n\n    backgroundColor = data.highlighted ? data.highlightedColor : data.backgroundColor;\n    strokeColor = data.highlighted ? data.highlightedColor : data.borderColor;\n    el.setAttribute('material', 'backgroundColor', backgroundColor);\n    el.setAttribute('material', 'strokeColor', strokeColor);\n\n    if (data.on !== oldData.on) { this.updateEventListener(); }\n\n    if (data.visualAspectEnabled && oldData.peekMode !== undefined &&\n        data.peekMode !== oldData.peekMode) { this.updatePeekMode(); }\n\n    if (!data.image || oldData.image === data.image) { return; }\n\n    el.setAttribute('material', 'pano',\n                    typeof data.image === 'string' ? data.image : data.image.src);\n  },\n\n  /*\n   * Toggle all elements and full 360 preview of the linked page.\n   */\n  updatePeekMode: function () {\n    var el = this.el;\n    var sphereEl = this.sphereEl;\n    if (this.data.peekMode) {\n      this.hideAll();\n      el.getObject3D('mesh').visible = false;\n      sphereEl.setAttribute('visible', true);\n    } else {\n      this.showAll();\n      el.getObject3D('mesh').visible = true;\n      sphereEl.setAttribute('visible', false);\n    }\n  },\n\n  play: function () {\n    this.updateEventListener();\n  },\n\n  pause: function () {\n    this.removeEventListener();\n  },\n\n  updateEventListener: function () {\n    var el = this.el;\n    if (!el.isPlaying) { return; }\n    this.removeEventListener();\n    el.addEventListener(this.data.on, this.navigate);\n  },\n\n  removeEventListener: function () {\n    var on = this.data.on;\n    if (!on) { return; }\n    this.el.removeEventListener(on, this.navigate);\n  },\n\n  initVisualAspect: function () {\n    var el = this.el;\n    var semiSphereEl;\n    var sphereEl;\n    var textEl;\n\n    if (!this.data.visualAspectEnabled) { return; }\n\n    textEl = this.textEl = this.textEl || document.createElement('a-entity');\n    sphereEl = this.sphereEl = this.sphereEl || document.createElement('a-entity');\n    semiSphereEl = this.semiSphereEl = this.semiSphereEl || document.createElement('a-entity');\n\n    // Set portal.\n    el.setAttribute('geometry', {primitive: 'circle', radius: 1.0, segments: 64});\n    el.setAttribute('material', {shader: 'portal', pano: this.data.image, side: 'double'});\n\n    // Set text that displays the link title and URL.\n    textEl.setAttribute('text', {\n      color: this.data.titleColor,\n      align: 'center',\n      font: 'kelsonsans',\n      value: this.data.title || this.data.href,\n      width: 4\n    });\n    textEl.setAttribute('position', '0 1.5 0');\n    el.appendChild(textEl);\n\n    // Set sphere rendered when camera is close to portal to allow user to peek inside.\n    semiSphereEl.setAttribute('geometry', {\n      primitive: 'sphere',\n      radius: 1.0,\n      phiStart: 0,\n      segmentsWidth: 64,\n      segmentsHeight: 64,\n      phiLength: 180,\n      thetaStart: 0,\n      thetaLength: 360\n    });\n    semiSphereEl.setAttribute('material', {\n      shader: 'portal',\n      borderEnabled: 0.0,\n      pano: this.data.image,\n      side: 'back'\n    });\n    semiSphereEl.setAttribute('rotation', '0 180 0');\n    semiSphereEl.setAttribute('position', '0 0 0');\n    semiSphereEl.setAttribute('visible', false);\n    el.appendChild(semiSphereEl);\n\n    // Set sphere rendered when camera is close to portal to allow user to peek inside.\n    sphereEl.setAttribute('geometry', {\n      primitive: 'sphere',\n      radius: 10,\n      segmentsWidth: 64,\n      segmentsHeight: 64\n    });\n    sphereEl.setAttribute('material', {\n      shader: 'portal',\n      borderEnabled: 0.0,\n      pano: this.data.image,\n      side: 'back'\n    });\n    sphereEl.setAttribute('visible', false);\n    el.appendChild(sphereEl);\n  },\n\n  navigate: function () {\n    window.location = this.data.href;\n  },\n\n  /**\n   * 1. Swap plane that represents portal with sphere with a hole when the camera is close\n   * so user can peek inside portal. Sphere is rendered on oposite side of portal\n   * from where user enters.\n   * 2. Place the url/title above or inside portal depending on distance to camera.\n   * 3. Face portal to camera when far away from user.\n   */\n  tick: (function () {\n    var cameraWorldPosition = new THREE.Vector3();\n    var elWorldPosition = new THREE.Vector3();\n    var quaternion = new THREE.Quaternion();\n    var scale = new THREE.Vector3();\n\n    return function () {\n      var el = this.el;\n      var object3D = el.object3D;\n      var camera = el.sceneEl.camera;\n      var cameraPortalOrientation;\n      var distance;\n      var textEl = this.textEl;\n\n      if (!this.data.visualAspectEnabled) { return; }\n\n      // Update matrices\n      object3D.updateMatrixWorld();\n      camera.parent.updateMatrixWorld();\n      camera.updateMatrixWorld();\n\n      object3D.matrix.decompose(elWorldPosition, quaternion, scale);\n      elWorldPosition.setFromMatrixPosition(object3D.matrixWorld);\n      cameraWorldPosition.setFromMatrixPosition(camera.matrixWorld);\n      distance = elWorldPosition.distanceTo(cameraWorldPosition);\n\n      if (distance > 20) {\n        // Store original orientation to be restored when the portal stops facing the camera.\n        if (!this.previousQuaternion) {\n          this.quaternionClone.copy(quaternion);\n          this.previousQuaternion = this.quaternionClone;\n        }\n        // If the portal is far away from the user, face portal to camera.\n        object3D.lookAt(cameraWorldPosition);\n      } else {\n        // When portal is close to the user/camera.\n        cameraPortalOrientation = this.calculateCameraPortalOrientation();\n        // If user gets very close to portal, replace with holed sphere they can peek in.\n        if (distance < 0.5) {\n          // Configure text size and sphere orientation depending side user approaches portal.\n          if (this.semiSphereEl.getAttribute('visible') === true) { return; }\n          textEl.setAttribute('text', 'width', 1.5);\n          if (cameraPortalOrientation <= 0.0) {\n            textEl.setAttribute('position', '0 0 0.75');\n            textEl.setAttribute('rotation', '0 180 0');\n            this.semiSphereEl.setAttribute('rotation', '0 0 0');\n          } else {\n            textEl.setAttribute('position', '0 0 -0.75');\n            textEl.setAttribute('rotation', '0 0 0');\n            this.semiSphereEl.setAttribute('rotation', '0 180 0');\n          }\n          el.getObject3D('mesh').visible = false;\n          this.semiSphereEl.setAttribute('visible', true);\n          this.peekCameraPortalOrientation = cameraPortalOrientation;\n        } else {\n          // Calculate wich side the camera is approaching the camera (back / front).\n          // Adjust text orientation based on camera position.\n          if (cameraPortalOrientation <= 0.0) {\n            textEl.setAttribute('rotation', '0 180 0');\n          } else {\n            textEl.setAttribute('rotation', '0 0 0');\n          }\n          textEl.setAttribute('text', 'width', 5);\n          textEl.setAttribute('position', '0 1.5 0');\n          el.getObject3D('mesh').visible = true;\n          this.semiSphereEl.setAttribute('visible', false);\n          this.peekCameraPortalOrientation = undefined;\n        }\n        if (this.previousQuaternion) {\n          object3D.quaternion.copy(this.previousQuaternion);\n          this.previousQuaternion = undefined;\n        }\n      }\n    };\n  })(),\n\n  hideAll: function () {\n    var el = this.el;\n    var hiddenEls = this.hiddenEls;\n    var self = this;\n    if (hiddenEls.length > 0) { return; }\n    el.sceneEl.object3D.traverse(function (object) {\n      if (object && object.el && object.el.hasAttribute('link-controls')) { return; }\n      if (!object.el || object === el.sceneEl.object3D || object.el === el ||\n          object.el === self.sphereEl || object.el === el.sceneEl.cameraEl ||\n          object.el.getAttribute('visible') === false || object.el === self.textEl ||\n          object.el === self.semiSphereEl) {\n        return;\n      }\n      object.el.setAttribute('visible', false);\n      hiddenEls.push(object.el);\n    });\n  },\n\n  showAll: function () {\n    this.hiddenEls.forEach(function (el) { el.setAttribute('visible', true); });\n    this.hiddenEls = [];\n  },\n\n  /**\n   * Calculate whether the camera faces the front or back face of the portal.\n   * @returns {number} > 0 if camera faces front of portal, < 0 if it faces back of portal.\n   */\n  calculateCameraPortalOrientation: (function () {\n    var mat4 = new THREE.Matrix4();\n    var cameraPosition = new THREE.Vector3();\n    var portalNormal = new THREE.Vector3(0, 0, 1);\n    var portalPosition = new THREE.Vector3(0, 0, 0);\n\n    return function () {\n      var el = this.el;\n      var camera = el.sceneEl.camera;\n\n      // Reset tmp variables.\n      cameraPosition.set(0, 0, 0);\n      portalNormal.set(0, 0, 1);\n      portalPosition.set(0, 0, 0);\n\n      // Apply portal orientation to the normal.\n      el.object3D.matrixWorld.extractRotation(mat4);\n      portalNormal.applyMatrix4(mat4);\n\n      // Calculate portal world position.\n      el.object3D.updateMatrixWorld();\n      el.object3D.localToWorld(portalPosition);\n\n      // Calculate camera world position.\n      camera.parent.parent.updateMatrixWorld();\n      camera.parent.updateMatrixWorld();\n      camera.updateMatrixWorld();\n      camera.localToWorld(cameraPosition);\n\n      // Calculate vector from portal to camera.\n      // (portal) -------> (camera)\n      cameraPosition.sub(portalPosition).normalize();\n      portalNormal.normalize();\n\n      // Side where camera approaches portal is given by sign of dot product of portal normal\n      // and portal to camera vectors.\n      return Math.sign(portalNormal.dot(cameraPosition));\n    };\n  })(),\n\n  remove: function () {\n    this.removeEventListener();\n  }\n});\n\n/* eslint-disable */\nregisterShader('portal', {\n  schema: {\n    borderEnabled: {default: 1.0, type: 'int', is: 'uniform'},\n    backgroundColor: {default: 'red', type: 'color', is: 'uniform'},\n    pano: {type: 'map', is: 'uniform'},\n    strokeColor: {default: 'white', type: 'color', is: 'uniform'}\n  },\n\n  vertexShader: [\n    'vec3 portalPosition;',\n    'varying vec3 vWorldPosition;',\n    'varying float vDistanceToCenter;',\n    'varying float vDistance;',\n    'void main() {',\n    'vDistanceToCenter = clamp(length(position - vec3(0.0, 0.0, 0.0)), 0.0, 1.0);',\n    'portalPosition = (modelMatrix * vec4(0.0, 0.0, 0.0, 1.0)).xyz;',\n    'vDistance = length(portalPosition - cameraPosition);',\n    'vWorldPosition = (modelMatrix * vec4(position, 1.0)).xyz;',\n    'gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);',\n    '}'\n  ].join('\\n'),\n\n  fragmentShader: [\n    '#define RECIPROCAL_PI2 0.15915494',\n    'uniform sampler2D pano;',\n    'uniform vec3 strokeColor;',\n    'uniform vec3 backgroundColor;',\n    'uniform float borderEnabled;',\n    'varying float vDistanceToCenter;',\n    'varying float vDistance;',\n    'varying vec3 vWorldPosition;',\n    'void main() {',\n    'vec3 direction = normalize(vWorldPosition - cameraPosition);',\n    'vec2 sampleUV;',\n    'float borderThickness = clamp(exp(-vDistance / 50.0), 0.6, 0.95);',\n    'sampleUV.y = saturate(direction.y * 0.5  + 0.5);',\n    'sampleUV.x = atan(direction.z, -direction.x) * -RECIPROCAL_PI2 + 0.5;',\n    'if (vDistanceToCenter > borderThickness && borderEnabled == 1.0) {',\n    'gl_FragColor = vec4(strokeColor, 1.0);',\n    '} else {',\n    'gl_FragColor = mix(texture2D(pano, sampleUV), vec4(backgroundColor, 1.0), clamp(pow((vDistance / 15.0), 2.0), 0.0, 1.0));',\n    '}',\n    '}'\n  ].join('\\n')\n});\n/* eslint-enable */\n","var registerComponent = require('../core/component').registerComponent;\nvar THREE = require('../lib/three');\nvar DEFAULT_CAMERA_HEIGHT = require('../constants').DEFAULT_CAMERA_HEIGHT;\nvar bind = require('../utils/bind');\n\n// To avoid recalculation at every mouse movement tick\nvar GRABBING_CLASS = 'a-grabbing';\nvar PI_2 = Math.PI / 2;\nvar radToDeg = THREE.Math.radToDeg;\n\n/**\n * look-controls. Update entity pose, factoring mouse, touch, and WebVR API data.\n */\nmodule.exports.Component = registerComponent('look-controls', {\n  dependencies: ['position', 'rotation'],\n\n  schema: {\n    enabled: {default: true},\n    touchEnabled: {default: true},\n    hmdEnabled: {default: true},\n    reverseMouseDrag: {default: false},\n    standing: {default: true}\n  },\n\n  init: function () {\n    var sceneEl = this.el.sceneEl;\n\n    this.previousHMDPosition = new THREE.Vector3();\n    this.hmdQuaternion = new THREE.Quaternion();\n    this.hmdEuler = new THREE.Euler();\n    this.position = new THREE.Vector3();\n    this.rotation = {};\n    this.deltaRotation = {};\n\n    this.setupMouseControls();\n    this.setupHMDControls();\n    this.bindMethods();\n\n    // Reset previous HMD position when we exit VR.\n    sceneEl.addEventListener('exit-vr', this.onExitVR);\n  },\n\n  update: function (oldData) {\n    var data = this.data;\n\n    // Disable grab cursor classes if no longer enabled.\n    if (data.enabled !== oldData.enabled) {\n      this.updateGrabCursor(data.enabled);\n    }\n\n    // Reset pitch and yaw if disabling HMD.\n    if (oldData && !data.hmdEnabled && !oldData.hmdEnabled) {\n      this.pitchObject.rotation.set(0, 0, 0);\n      this.yawObject.rotation.set(0, 0, 0);\n    }\n  },\n\n  tick: function (t) {\n    var data = this.data;\n    if (!data.enabled) { return; }\n    this.controls.standing = data.standing;\n    this.controls.userHeight = this.getUserHeight();\n    this.controls.update();\n    this.updateOrientation();\n    this.updatePosition();\n  },\n\n  /**\n   * Return user height to use for standing poses, where a device doesn't provide an offset.\n   */\n  getUserHeight: function () {\n    var el = this.el;\n    return el.hasAttribute('camera')\n      ? el.getAttribute('camera').userHeight\n      : DEFAULT_CAMERA_HEIGHT;\n  },\n\n  play: function () {\n    this.addEventListeners();\n  },\n\n  pause: function () {\n    this.removeEventListeners();\n  },\n\n  remove: function () {\n    this.removeEventListeners();\n  },\n\n  bindMethods: function () {\n    this.onMouseDown = bind(this.onMouseDown, this);\n    this.onMouseMove = bind(this.onMouseMove, this);\n    this.onMouseUp = bind(this.onMouseUp, this);\n    this.onTouchStart = bind(this.onTouchStart, this);\n    this.onTouchMove = bind(this.onTouchMove, this);\n    this.onTouchEnd = bind(this.onTouchEnd, this);\n    this.onExitVR = bind(this.onExitVR, this);\n  },\n\n /**\n  * Set up states and Object3Ds needed to store rotation data.\n  */\n  setupMouseControls: function () {\n    this.mouseDown = false;\n    this.pitchObject = new THREE.Object3D();\n    this.yawObject = new THREE.Object3D();\n    this.yawObject.position.y = 10;\n    this.yawObject.add(this.pitchObject);\n  },\n\n  /**\n   * Set up VR controls that will copy data to the dolly.\n   */\n  setupHMDControls: function () {\n    this.dolly = new THREE.Object3D();\n    this.euler = new THREE.Euler();\n    this.controls = new THREE.VRControls(this.dolly);\n    this.controls.userHeight = 0.0;\n  },\n\n  /**\n   * Add mouse and touch event listeners to canvas.\n   */\n  addEventListeners: function () {\n    var sceneEl = this.el.sceneEl;\n    var canvasEl = sceneEl.canvas;\n\n    // Wait for canvas to load.\n    if (!canvasEl) {\n      sceneEl.addEventListener('render-target-loaded', bind(this.addEventListeners, this));\n      return;\n    }\n\n    // Mouse events.\n    canvasEl.addEventListener('mousedown', this.onMouseDown, false);\n    window.addEventListener('mousemove', this.onMouseMove, false);\n    window.addEventListener('mouseup', this.onMouseUp, false);\n\n    // Touch events.\n    canvasEl.addEventListener('touchstart', this.onTouchStart);\n    window.addEventListener('touchmove', this.onTouchMove);\n    window.addEventListener('touchend', this.onTouchEnd);\n  },\n\n  /**\n   * Remove mouse and touch event listeners from canvas.\n   */\n  removeEventListeners: function () {\n    var sceneEl = this.el.sceneEl;\n    var canvasEl = sceneEl && sceneEl.canvas;\n\n    if (!canvasEl) { return; }\n\n    // Mouse events.\n    canvasEl.removeEventListener('mousedown', this.onMouseDown);\n    canvasEl.removeEventListener('mousemove', this.onMouseMove);\n    canvasEl.removeEventListener('mouseup', this.onMouseUp);\n    canvasEl.removeEventListener('mouseout', this.onMouseUp);\n\n    // Touch events.\n    canvasEl.removeEventListener('touchstart', this.onTouchStart);\n    canvasEl.removeEventListener('touchmove', this.onTouchMove);\n    canvasEl.removeEventListener('touchend', this.onTouchEnd);\n  },\n\n  /**\n   * Update orientation for mobile, mouse drag, and headset.\n   * Mouse-drag only enabled if HMD is not active.\n   */\n  updateOrientation: function () {\n    var currentRotation;\n    var deltaRotation = this.deltaRotation;\n    var hmdEuler = this.hmdEuler;\n    var hmdQuaternion = this.hmdQuaternion;\n    var pitchObject = this.pitchObject;\n    var yawObject = this.yawObject;\n    var sceneEl = this.el.sceneEl;\n    var rotation = this.rotation;\n\n    // Calculate HMD quaternion.\n    hmdQuaternion = hmdQuaternion.copy(this.dolly.quaternion);\n    hmdEuler.setFromQuaternion(hmdQuaternion, 'YXZ');\n\n    if (sceneEl.isMobile) {\n      // On mobile, do camera rotation with touch events and sensors.\n      rotation.x = radToDeg(hmdEuler.x) + radToDeg(pitchObject.rotation.x);\n      rotation.y = radToDeg(hmdEuler.y) + radToDeg(yawObject.rotation.y);\n      rotation.z = radToDeg(hmdEuler.z);\n    } else if (!sceneEl.is('vr-mode') || isNullVector(hmdEuler) || !this.data.hmdEnabled) {\n      // Mouse drag if WebVR not active (not connected, no incoming sensor data).\n      currentRotation = this.el.getAttribute('rotation');\n      this.calculateDeltaRotation();\n      if (this.data.reverseMouseDrag) {\n        rotation.x = currentRotation.x - deltaRotation.x;\n        rotation.y = currentRotation.y - deltaRotation.y;\n        rotation.z = currentRotation.z;\n      } else {\n        rotation.x = currentRotation.x + deltaRotation.x;\n        rotation.y = currentRotation.y + deltaRotation.y;\n        rotation.z = currentRotation.z;\n      }\n    } else {\n      // Mouse rotation ignored with an active headset. Use headset rotation.\n      rotation.x = radToDeg(hmdEuler.x);\n      rotation.y = radToDeg(hmdEuler.y);\n      rotation.z = radToDeg(hmdEuler.z);\n    }\n\n    this.el.setAttribute('rotation', rotation);\n  },\n\n  /**\n   * Calculate delta rotation for mouse-drag and touch-drag.\n   */\n  calculateDeltaRotation: function () {\n    var currentRotationX = radToDeg(this.pitchObject.rotation.x);\n    var currentRotationY = radToDeg(this.yawObject.rotation.y);\n    this.deltaRotation.x = currentRotationX - (this.previousRotationX || 0);\n    this.deltaRotation.y = currentRotationY - (this.previousRotationY || 0);\n    // Store current rotation for next tick.\n    this.previousRotationX = currentRotationX;\n    this.previousRotationY = currentRotationY;\n    return this.deltaRotation;\n  },\n\n  /**\n   * Handle positional tracking.\n   */\n  updatePosition: function () {\n    var el = this.el;\n    var currentHMDPosition;\n    var currentPosition;\n    var position = this.position;\n    var previousHMDPosition = this.previousHMDPosition;\n    var sceneEl = this.el.sceneEl;\n\n    if (!sceneEl.is('vr-mode')) { return; }\n\n    // Calculate change in position.\n    currentHMDPosition = this.calculateHMDPosition();\n\n    currentPosition = el.getAttribute('position');\n\n    position.copy(currentPosition).sub(previousHMDPosition).add(currentHMDPosition);\n    el.setAttribute('position', position);\n    previousHMDPosition.copy(currentHMDPosition);\n  },\n\n  /**\n   * Get headset position from VRControls.\n   */\n  calculateHMDPosition: (function () {\n    var position = new THREE.Vector3();\n    return function () {\n      this.dolly.updateMatrix();\n      position.setFromMatrixPosition(this.dolly.matrix);\n      return position;\n    };\n  })(),\n\n  /**\n   * Translate mouse drag into rotation.\n   *\n   * Dragging up and down rotates the camera around the X-axis (yaw).\n   * Dragging left and right rotates the camera around the Y-axis (pitch).\n   */\n  onMouseMove: function (event) {\n    var pitchObject = this.pitchObject;\n    var yawObject = this.yawObject;\n    var previousMouseEvent = this.previousMouseEvent;\n    var movementX;\n    var movementY;\n\n    // Not dragging or not enabled.\n    if (!this.mouseDown || !this.data.enabled) { return; }\n\n     // Calculate delta.\n    movementX = event.movementX || event.mozMovementX;\n    movementY = event.movementY || event.mozMovementY;\n    if (movementX === undefined || movementY === undefined) {\n      movementX = event.screenX - previousMouseEvent.screenX;\n      movementY = event.screenY - previousMouseEvent.screenY;\n    }\n    this.previousMouseEvent = event;\n\n    // Calculate rotation.\n    yawObject.rotation.y -= movementX * 0.002;\n    pitchObject.rotation.x -= movementY * 0.002;\n    pitchObject.rotation.x = Math.max(-PI_2, Math.min(PI_2, pitchObject.rotation.x));\n  },\n\n  /**\n   * Register mouse down to detect mouse drag.\n   */\n  onMouseDown: function (evt) {\n    if (!this.data.enabled) { return; }\n    // Handle only primary button.\n    if (evt.button !== 0) { return; }\n    this.mouseDown = true;\n    this.previousMouseEvent = evt;\n    document.body.classList.add(GRABBING_CLASS);\n  },\n\n  /**\n   * Register mouse up to detect release of mouse drag.\n   */\n  onMouseUp: function () {\n    this.mouseDown = false;\n    document.body.classList.remove(GRABBING_CLASS);\n  },\n\n  /**\n   * Register touch down to detect touch drag.\n   */\n  onTouchStart: function (evt) {\n    if (evt.touches.length !== 1 || !this.data.touchEnabled) { return; }\n    this.touchStart = {\n      x: evt.touches[0].pageX,\n      y: evt.touches[0].pageY\n    };\n    this.touchStarted = true;\n  },\n\n  /**\n   * Translate touch move to Y-axis rotation.\n   */\n  onTouchMove: function (evt) {\n    var canvas = this.el.sceneEl.canvas;\n    var deltaY;\n    var yawObject = this.yawObject;\n\n    if (!this.touchStarted || !this.data.touchEnabled) { return; }\n\n    deltaY = 2 * Math.PI * (evt.touches[0].pageX - this.touchStart.x) / canvas.clientWidth;\n\n    // Limit touch orientaion to to yaw (y axis).\n    yawObject.rotation.y -= deltaY * 0.5;\n    this.touchStart = {\n      x: evt.touches[0].pageX,\n      y: evt.touches[0].pageY\n    };\n  },\n\n  /**\n   * Register touch end to detect release of touch drag.\n   */\n  onTouchEnd: function () {\n    this.touchStarted = false;\n  },\n\n  onExitVR: function () {\n    this.previousHMDPosition.set(0, 0, 0);\n  },\n\n  /**\n   * Toggle the feature of showing/hiding the grab cursor.\n   */\n  updateGrabCursor: function (enabled) {\n    var sceneEl = this.el.sceneEl;\n\n    function enableGrabCursor () { sceneEl.canvas.classList.add('a-grab-cursor'); }\n    function disableGrabCursor () { sceneEl.canvas.classList.remove('a-grab-cursor'); }\n\n    if (!sceneEl.canvas) {\n      if (enabled) {\n        sceneEl.addEventListener('render-target-loaded', enableGrabCursor);\n      } else {\n        sceneEl.addEventListener('render-target-loaded', disableGrabCursor);\n      }\n      return;\n    }\n\n    if (enabled) {\n      enableGrabCursor();\n      return;\n    }\n    disableGrabCursor();\n  }\n});\n\nfunction isNullVector (vector) {\n  return vector.x === 0 && vector.y === 0 && vector.z === 0;\n}\n","/* global Promise */\nvar utils = require('../utils/');\nvar component = require('../core/component');\nvar THREE = require('../lib/three');\nvar shader = require('../core/shader');\n\nvar error = utils.debug('components:material:error');\nvar registerComponent = component.registerComponent;\nvar shaders = shader.shaders;\nvar shaderNames = shader.shaderNames;\n\n/**\n * Material component.\n *\n * @member {object} shader - Determines how material is shaded. Defaults to `standard`,\n *         three.js's implementation of PBR. Another standard shading model is `flat` which\n *         uses MeshBasicMaterial.\n */\nmodule.exports.Component = registerComponent('material', {\n  schema: {\n    alphaTest: {default: 0.0, min: 0.0, max: 1.0},\n    depthTest: {default: true},\n    depthWrite: {default: true},\n    flatShading: {default: false},\n    npot: {default: false},\n    offset: {type: 'vec2', default: {x: 0, y: 0}},\n    opacity: {default: 1.0, min: 0.0, max: 1.0},\n    repeat: {type: 'vec2', default: {x: 1, y: 1}},\n    shader: {default: 'standard', oneOf: shaderNames},\n    side: {default: 'front', oneOf: ['front', 'back', 'double']},\n    transparent: {default: false},\n    vertexColors: {type: 'string', default: 'none', oneOf: ['face', 'vertex']},\n    visible: {default: true}\n  },\n\n  init: function () {\n    this.material = null;\n  },\n\n  /**\n   * Update or create material.\n   *\n   * @param {object|null} oldData\n   */\n  update: function (oldData) {\n    var data = this.data;\n    if (!this.shader || data.shader !== oldData.shader) {\n      this.updateShader(data.shader);\n    }\n    this.shader.update(this.data);\n    this.updateMaterial(oldData);\n  },\n\n  updateSchema: function (data) {\n    var newShader = data.shader;\n    var currentShader = this.data && this.data.shader;\n    var shader = newShader || currentShader;\n    var schema = shaders[shader] && shaders[shader].schema;\n    if (!schema) { error('Unknown shader schema ' + shader); }\n    if (currentShader && newShader === currentShader) { return; }\n    this.extendSchema(schema);\n    this.updateBehavior();\n  },\n\n  updateBehavior: function () {\n    var schema = this.schema;\n    var self = this;\n    var sceneEl = this.el.sceneEl;\n    var tickProperties = {};\n    var tick = function (time, delta) {\n      Object.keys(tickProperties).forEach(function update (key) {\n        tickProperties[key] = time;\n      });\n      self.shader.update(tickProperties);\n    };\n    this.tick = undefined;\n    Object.keys(schema).forEach(function (key) {\n      if (schema[key].type === 'time') {\n        self.tick = tick;\n        tickProperties[key] = true;\n      }\n    });\n    if (!sceneEl) { return; }\n    if (!this.tick) {\n      sceneEl.removeBehavior(this);\n    } else {\n      sceneEl.addBehavior(this);\n    }\n  },\n\n  updateShader: function (shaderName) {\n    var data = this.data;\n    var Shader = shaders[shaderName] && shaders[shaderName].Shader;\n    var shaderInstance;\n\n    if (!Shader) { throw new Error('Unknown shader ' + shaderName); }\n\n    // Get material from A-Frame shader.\n    shaderInstance = this.shader = new Shader();\n    shaderInstance.el = this.el;\n    shaderInstance.init(data);\n    this.setMaterial(shaderInstance.material);\n    this.updateSchema(data);\n  },\n\n  /**\n   * Set and update base material properties.\n   * Set `needsUpdate` when needed.\n   */\n  updateMaterial: function (oldData) {\n    var data = this.data;\n    var material = this.material;\n\n    // Base material properties.\n    material.alphaTest = data.alphaTest;\n    material.depthTest = data.depthTest !== false;\n    material.depthWrite = data.depthWrite !== false;\n    material.opacity = data.opacity;\n    material.flatShading = data.flatShading;\n    material.side = parseSide(data.side);\n    material.transparent = data.transparent !== false || data.opacity < 1.0;\n    material.vertexColors = parseVertexColors(data.vertexColors);\n    material.visible = data.visible;\n\n    // Check if material needs update.\n    if (Object.keys(oldData).length &&\n        (oldData.alphaTest !== data.alphaTest ||\n         oldData.side !== data.side ||\n         oldData.vertexColors !== data.vertexColors)) {\n      material.needsUpdate = true;\n    }\n  },\n\n  /**\n   * Remove material on remove (callback).\n   * Dispose of it from memory and unsubscribe from scene updates.\n   */\n  remove: function () {\n    var defaultMaterial = new THREE.MeshBasicMaterial();\n    var material = this.material;\n    var object3D = this.el.getObject3D('mesh');\n    if (object3D) { object3D.material = defaultMaterial; }\n    disposeMaterial(material, this.system);\n  },\n\n  /**\n   * (Re)create new material. Has side-effects of setting `this.material` and updating\n   * material registration in scene.\n   *\n   * @param {object} data - Material component data.\n   * @param {object} type - Material type to create.\n   * @returns {object} Material.\n   */\n  setMaterial: function (material) {\n    var el = this.el;\n    var mesh;\n    var system = this.system;\n\n    if (this.material) { disposeMaterial(this.material, system); }\n\n    this.material = material;\n    system.registerMaterial(material);\n\n    // Set on mesh. If mesh does not exist, wait for it.\n    mesh = el.getObject3D('mesh');\n    if (mesh) {\n      mesh.material = material;\n    } else {\n      el.addEventListener('object3dset', function waitForMesh (evt) {\n        if (evt.detail.type !== 'mesh' || evt.target !== el) { return; }\n        el.getObject3D('mesh').material = material;\n        el.removeEventListener('object3dset', waitForMesh);\n      });\n    }\n  }\n});\n\n/**\n * Return a three.js constant determining which material face sides to render\n * based on the side parameter (passed as a component property).\n *\n * @param {string} [side=front] - `front`, `back`, or `double`.\n * @returns {number} THREE.FrontSide, THREE.BackSide, or THREE.DoubleSide.\n */\nfunction parseSide (side) {\n  switch (side) {\n    case 'back': {\n      return THREE.BackSide;\n    }\n    case 'double': {\n      return THREE.DoubleSide;\n    }\n    default: {\n      // Including case `front`.\n      return THREE.FrontSide;\n    }\n  }\n}\n\n/**\n * Return a three.js constant determining vertex coloring.\n */\nfunction parseVertexColors (coloring) {\n  switch (coloring) {\n    case 'face': {\n      return THREE.FaceColors;\n    }\n    case 'vertex': {\n      return THREE.VertexColors;\n    }\n    default: {\n      return THREE.NoColors;\n    }\n  }\n}\n\n/**\n * Dispose of material from memory and unsubscribe material from scene updates like fog.\n */\nfunction disposeMaterial (material, system) {\n  material.dispose();\n  system.unregisterMaterial(material);\n}\n","var debug = require('../utils/debug');\nvar registerComponent = require('../core/component').registerComponent;\nvar THREE = require('../lib/three');\n\nvar warn = debug('components:obj-model:warn');\n\nmodule.exports.Component = registerComponent('obj-model', {\n  schema: {\n    mtl: {type: 'model'},\n    obj: {type: 'model'}\n  },\n\n  init: function () {\n    this.model = null;\n    this.objLoader = new THREE.OBJLoader();\n    this.mtlLoader = new THREE.MTLLoader(this.objLoader.manager);\n    // Allow cross-origin images to be loaded.\n    this.mtlLoader.crossOrigin = '';\n  },\n\n  update: function () {\n    var data = this.data;\n    if (!data.obj) { return; }\n    this.remove();\n    this.loadObj(data.obj, data.mtl);\n  },\n\n  remove: function () {\n    if (!this.model) { return; }\n    this.el.removeObject3D('mesh');\n  },\n\n  loadObj: function (objUrl, mtlUrl) {\n    var self = this;\n    var el = this.el;\n    var mtlLoader = this.mtlLoader;\n    var objLoader = this.objLoader;\n\n    if (mtlUrl) {\n      // .OBJ with an .MTL.\n      if (el.hasAttribute('material')) {\n        warn('Material component properties are ignored when a .MTL is provided');\n      }\n      mtlLoader.setTexturePath(mtlUrl.substr(0, mtlUrl.lastIndexOf('/') + 1));\n      mtlLoader.load(mtlUrl, function (materials) {\n        materials.preload();\n        objLoader.setMaterials(materials);\n        objLoader.load(objUrl, function (objModel) {\n          self.model = objModel;\n          el.setObject3D('mesh', objModel);\n          el.emit('model-loaded', {format: 'obj', model: objModel});\n        });\n      });\n      return;\n    }\n\n    // .OBJ only.\n    objLoader.load(objUrl, function loadObjOnly (objModel) {\n      // Apply material.\n      var material = el.components.material;\n      if (material) {\n        objModel.traverse(function (child) {\n          if (child instanceof THREE.Mesh) {\n            child.material = material.material;\n          }\n        });\n      }\n\n      self.model = objModel;\n      el.setObject3D('mesh', objModel);\n      el.emit('model-loaded', {format: 'obj', model: objModel});\n    });\n  }\n});\n","var bind = require('../utils/bind');\nvar registerComponent = require('../core/component').registerComponent;\nvar trackedControlsUtils = require('../utils/tracked-controls');\nvar onButtonEvent = trackedControlsUtils.onButtonEvent;\n\nvar TOUCH_CONTROLLER_MODEL_BASE_URL = 'https://cdn.aframe.io/controllers/oculus/oculus-touch-controller-';\nvar TOUCH_CONTROLLER_MODEL_OBJ_URL_L = TOUCH_CONTROLLER_MODEL_BASE_URL + 'left.obj';\nvar TOUCH_CONTROLLER_MODEL_OBJ_MTL_L = TOUCH_CONTROLLER_MODEL_BASE_URL + 'left.mtl';\nvar TOUCH_CONTROLLER_MODEL_OBJ_URL_R = TOUCH_CONTROLLER_MODEL_BASE_URL + 'right.obj';\nvar TOUCH_CONTROLLER_MODEL_OBJ_MTL_R = TOUCH_CONTROLLER_MODEL_BASE_URL + 'right.mtl';\n\nvar GAMEPAD_ID_PREFIX = 'Oculus Touch';\n\nvar PIVOT_OFFSET = {x: 0, y: -0.015, z: 0.04};\n\n/**\n * Oculus Touch controls.\n * Interface with Oculus Touch controllers and map Gamepad events to\n * controller buttons: thumbstick, trigger, grip, xbutton, ybutton, surface\n * Load a controller model and highlight the pressed buttons.\n */\nmodule.exports.Component = registerComponent('oculus-touch-controls', {\n  schema: {\n    hand: {default: 'left'},\n    buttonColor: {type: 'color', default: '#999'},  // Off-white.\n    buttonTouchColor: {type: 'color', default: '#8AB'},\n    buttonHighlightColor: {type: 'color', default: '#2DF'},  // Light blue.\n    model: {default: true},\n    rotationOffset: {default: 0}\n  },\n\n  /**\n   * Button IDs:\n   * 0 - thumbstick (which has separate axismove / thumbstickmoved events)\n   * 1 - trigger (with analog value, which goes up to 1)\n   * 2 - grip (with analog value, which goes up to 1)\n   * 3 - X (left) or A (right)\n   * 4 - Y (left) or B (right)\n   * 5 - surface (touch only)\n   */\n  mapping: {\n    left: {\n      axes: {thumbstick: [0, 1]},\n      buttons: ['thumbstick', 'trigger', 'grip', 'xbutton', 'ybutton', 'surface']\n    },\n    right: {\n      axes: {thumbstick: [0, 1]},\n      buttons: ['thumbstick', 'trigger', 'grip', 'abutton', 'bbutton', 'surface']\n    }\n  },\n\n  bindMethods: function () {\n    this.onModelLoaded = bind(this.onModelLoaded, this);\n    this.onControllersUpdate = bind(this.onControllersUpdate, this);\n    this.checkIfControllerPresent = bind(this.checkIfControllerPresent, this);\n    this.onAxisMoved = bind(this.onAxisMoved, this);\n  },\n\n  init: function () {\n    var self = this;\n    this.onButtonChanged = bind(this.onButtonChanged, this);\n    this.onButtonDown = function (evt) { onButtonEvent(evt.detail.id, 'down', self, self.data.hand); };\n    this.onButtonUp = function (evt) { onButtonEvent(evt.detail.id, 'up', self, self.data.hand); };\n    this.onButtonTouchStart = function (evt) { onButtonEvent(evt.detail.id, 'touchstart', self, self.data.hand); };\n    this.onButtonTouchEnd = function (evt) { onButtonEvent(evt.detail.id, 'touchend', self, self.data.hand); };\n    this.controllerPresent = false;\n    this.lastControllerCheck = 0;\n    this.previousButtonValues = {};\n    this.bindMethods();\n\n    // Allow mock.\n    this.emitIfAxesChanged = trackedControlsUtils.emitIfAxesChanged;\n    this.checkControllerPresentAndSetup = trackedControlsUtils.checkControllerPresentAndSetup;\n  },\n\n  addEventListeners: function () {\n    var el = this.el;\n    el.addEventListener('buttonchanged', this.onButtonChanged);\n    el.addEventListener('buttondown', this.onButtonDown);\n    el.addEventListener('buttonup', this.onButtonUp);\n    el.addEventListener('touchstart', this.onButtonTouchStart);\n    el.addEventListener('touchend', this.onButtonTouchEnd);\n    el.addEventListener('axismove', this.onAxisMoved);\n    el.addEventListener('model-loaded', this.onModelLoaded);\n    this.controllerEventsActive = true;\n  },\n\n  removeEventListeners: function () {\n    var el = this.el;\n    el.removeEventListener('buttonchanged', this.onButtonChanged);\n    el.removeEventListener('buttondown', this.onButtonDown);\n    el.removeEventListener('buttonup', this.onButtonUp);\n    el.removeEventListener('touchstart', this.onButtonTouchStart);\n    el.removeEventListener('touchend', this.onButtonTouchEnd);\n    el.removeEventListener('axismove', this.onAxisMoved);\n    el.removeEventListener('model-loaded', this.onModelLoaded);\n    this.controllerEventsActive = false;\n  },\n\n  checkIfControllerPresent: function () {\n    this.checkControllerPresentAndSetup(this, GAMEPAD_ID_PREFIX, {\n      hand: this.data.hand\n    });\n  },\n\n  play: function () {\n    this.checkIfControllerPresent();\n    this.addControllersUpdateListener();\n  },\n\n  pause: function () {\n    this.removeEventListeners();\n    this.removeControllersUpdateListener();\n  },\n\n  updateControllerModel: function () {\n    var objUrl, mtlUrl;\n    if (!this.data.model) { return; }\n    if (this.data.hand === 'right') {\n      objUrl = 'url(' + TOUCH_CONTROLLER_MODEL_OBJ_URL_R + ')';\n      mtlUrl = 'url(' + TOUCH_CONTROLLER_MODEL_OBJ_MTL_R + ')';\n    } else {\n      objUrl = 'url(' + TOUCH_CONTROLLER_MODEL_OBJ_URL_L + ')';\n      mtlUrl = 'url(' + TOUCH_CONTROLLER_MODEL_OBJ_MTL_L + ')';\n    }\n    this.el.setAttribute('obj-model', {obj: objUrl, mtl: mtlUrl});\n  },\n\n  injectTrackedControls: function () {\n    var data = this.data;\n    var offset = data.hand === 'right' ? -90 : 90;\n    this.el.setAttribute('tracked-controls', {\n      id: data.hand === 'right' ? 'Oculus Touch (Right)' : 'Oculus Touch (Left)',\n      controller: 0,\n      rotationOffset: data.rotationOffset !== -999 ? data.rotationOffset : offset\n    });\n    this.updateControllerModel();\n  },\n\n  addControllersUpdateListener: function () {\n    this.el.sceneEl.addEventListener('controllersupdated', this.onControllersUpdate, false);\n  },\n\n  removeControllersUpdateListener: function () {\n    this.el.sceneEl.removeEventListener('controllersupdated', this.onControllersUpdate, false);\n  },\n\n  onControllersUpdate: function () {\n    // Note that due to gamepadconnected event propagation issues, we don't rely on events.\n    this.checkIfControllerPresent();\n  },\n\n  onButtonChanged: function (evt) {\n    var button = this.mapping[this.data.hand].buttons[evt.detail.id];\n    var buttonMeshes = this.buttonMeshes;\n    var analogValue;\n\n    if (!button) { return; }\n\n    if (button === 'trigger' || button === 'grip') { analogValue = evt.detail.state.value; }\n\n    // Update trigger and/or grip meshes, if any.\n    if (buttonMeshes) {\n      if (button === 'trigger' && buttonMeshes.trigger) {\n        buttonMeshes.trigger.rotation.x = -analogValue * (Math.PI / 24);\n      }\n      if (button === 'grip' && buttonMeshes.grip) {\n        buttonMeshes.grip.rotation.y = (this.data.hand === 'left' ? -1 : 1) * analogValue * (Math.PI / 60);\n      }\n    }\n\n    // Pass along changed event with button state, using the buttom mapping for convenience.\n    this.el.emit(button + 'changed', evt.detail.state);\n  },\n\n  onModelLoaded: function (evt) {\n    var controllerObject3D = evt.detail.model;\n    var buttonMeshes;\n    if (!this.data.model) { return; }\n\n    var leftHand = this.data.hand === 'left';\n    buttonMeshes = this.buttonMeshes = {};\n\n    buttonMeshes.grip = controllerObject3D.getObjectByName(leftHand ? 'buttonHand_oculus-touch-controller-left.004' : 'buttonHand_oculus-touch-controller-right.005');\n    buttonMeshes.thumbstick = controllerObject3D.getObjectByName(leftHand ? 'stick_oculus-touch-controller-left.007' : 'stick_oculus-touch-controller-right.004');\n    buttonMeshes.trigger = controllerObject3D.getObjectByName(leftHand ? 'buttonTrigger_oculus-touch-controller-left.005' : 'buttonTrigger_oculus-touch-controller-right.006');\n    buttonMeshes.xbutton = controllerObject3D.getObjectByName('buttonX_oculus-touch-controller-left.002');\n    buttonMeshes.abutton = controllerObject3D.getObjectByName('buttonA_oculus-touch-controller-right.002');\n    buttonMeshes.ybutton = controllerObject3D.getObjectByName('buttonY_oculus-touch-controller-left.001');\n    buttonMeshes.bbutton = controllerObject3D.getObjectByName('buttonB_oculus-touch-controller-right.003');\n\n    // Offset pivot point\n    controllerObject3D.position = PIVOT_OFFSET;\n  },\n\n  onAxisMoved: function (evt) {\n    this.emitIfAxesChanged(this, this.mapping[this.data.hand].axes, evt);\n  },\n\n  updateModel: function (buttonName, evtName) {\n    if (!this.data.model) { return; }\n    this.updateButtonModel(buttonName, evtName);\n  },\n\n  updateButtonModel: function (buttonName, state) {\n    var color = (state === 'up' || state === 'touchend') ? this.data.buttonColor : state === 'touchstart' ? this.data.buttonTouchColor : this.data.buttonHighlightColor;\n    var buttonMeshes = this.buttonMeshes;\n    if (!this.data.model) { return; }\n    if (buttonMeshes && buttonMeshes[buttonName]) {\n      buttonMeshes[buttonName].material.color.set(color);\n    }\n  }\n});\n","var registerComponent = require('../core/component').registerComponent;\n\nmodule.exports.Component = registerComponent('position', {\n  schema: {type: 'vec3'},\n\n  update: function () {\n    var object3D = this.el.object3D;\n    var data = this.data;\n    object3D.position.set(data.x, data.y, data.z);\n  }\n});\n","/* global MutationObserver */\n\nvar registerComponent = require('../core/component').registerComponent;\nvar THREE = require('../lib/three');\nvar utils = require('../utils/');\n\nvar warn = utils.debug('components:raycaster:warn');\n\n// Defines selectors that should be 'safe' for the MutationObserver used to\n// refresh the whitelist. Matches classnames, IDs, and presence of attributes.\n// Selectors for the value of an attribute, like [position=0 2 0], cannot be\n// reliably detected and are therefore disallowed.\nvar OBSERVER_SELECTOR_RE = /^[\\w\\s-.,[\\]#]*$/;\n\n// Configuration for the MutationObserver used to refresh the whitelist.\n// Listens for addition/removal of elements and attributes within the scene.\nvar OBSERVER_CONFIG = {\n  childList: true,\n  attributes: true,\n  subtree: true\n};\n\n/**\n * Raycaster component.\n *\n * Pass options to three.js Raycaster including which objects to test.\n * Poll for intersections.\n * Emit event on origin entity and on target entity on intersect.\n *\n * @member {array} intersectedEls - List of currently intersected entities.\n * @member {array} objects - Cached list of meshes to intersect.\n * @member {number} prevCheckTime - Previous time intersection was checked. To help interval.\n * @member {object} raycaster - three.js Raycaster.\n */\nmodule.exports.Component = registerComponent('raycaster', {\n  schema: {\n    autoRefresh: {default: true},\n    direction: {type: 'vec3', default: {x: 0, y: 0, z: -1}},\n    enabled: {default: true},\n    far: {default: 1000},\n    interval: {default: 100},\n    near: {default: 0},\n    objects: {default: ''},\n    origin: {type: 'vec3'},\n    recursive: {default: true},\n    showLine: {default: false},\n    useWorldCoordinates: {default: false}\n  },\n\n  init: function () {\n    // Calculate unit vector for line direction. Can be multiplied via scalar to performantly\n    // adjust line length.\n    this.clearedIntersectedEls = [];\n    this.unitLineEndVec3 = new THREE.Vector3();\n    this.intersectedEls = [];\n    this.newIntersectedEls = [];\n    this.newIntersections = [];\n    this.objects = [];\n    this.prevCheckTime = undefined;\n    this.prevIntersectedEls = [];\n    this.raycaster = new THREE.Raycaster();\n    this.updateOriginDirection();\n    this.setDirty = this.setDirty.bind(this);\n    this.observer = new MutationObserver(this.setDirty);\n    this.dirty = true;\n    this.lineEndVec3 = new THREE.Vector3();\n    this.otherLineEndVec3 = new THREE.Vector3();\n    this.lineData = {end: this.lineEndVec3};\n\n    this.intersectedClearedDetail = {el: this.el};\n    this.intersectionClearedDetail = {clearedEls: this.clearedIntersectedEls};\n  },\n\n  /**\n   * Create or update raycaster object.\n   */\n  update: function (oldData) {\n    var data = this.data;\n    var el = this.el;\n    var raycaster = this.raycaster;\n\n    // Set raycaster properties.\n    raycaster.far = data.far;\n    raycaster.near = data.near;\n\n    // Draw line.\n    if (data.showLine &&\n        (data.far !== oldData.far || data.origin !== oldData.origin ||\n         data.direction !== oldData.direction || !oldData.showLine)) {\n      this.unitLineEndVec3.copy(data.origin).add(data.direction).normalize();\n      this.drawLine();\n    }\n\n    if (!data.showLine && oldData.showLine) {\n      el.removeAttribute('line');\n    }\n\n    if (data.objects !== oldData.objects && !OBSERVER_SELECTOR_RE.test(data.objects)) {\n      warn('Selector \"' + data.objects + '\" may not update automatically with DOM changes.');\n    }\n\n    if (data.autoRefresh !== oldData.autoRefresh && el.isPlaying) {\n      data.autoRefresh\n        ? this.addEventListeners()\n        : this.removeEventListeners();\n    }\n\n    this.setDirty();\n  },\n\n  play: function () {\n    this.addEventListeners();\n  },\n\n  pause: function () {\n    this.removeEventListeners();\n  },\n\n  remove: function () {\n    if (this.data.showLine) {\n      this.el.removeAttribute('line');\n    }\n  },\n\n  addEventListeners: function () {\n    if (!this.data.autoRefresh) { return; }\n    this.observer.observe(this.el.sceneEl, OBSERVER_CONFIG);\n    this.el.sceneEl.addEventListener('object3dset', this.setDirty);\n    this.el.sceneEl.addEventListener('object3dremove', this.setDirty);\n  },\n\n  removeEventListeners: function () {\n    this.observer.disconnect();\n    this.el.sceneEl.removeEventListener('object3dset', this.setDirty);\n    this.el.sceneEl.removeEventListener('object3dremove', this.setDirty);\n  },\n\n  /**\n   * Mark the object list as dirty, to be refreshed before next raycast.\n   */\n  setDirty: function () {\n    this.dirty = true;\n  },\n\n  /**\n   * Update list of objects to test for intersection.\n   */\n  refreshObjects: function () {\n    var data = this.data;\n    // If objects not defined, intersect with everything.\n    var els = data.objects\n      ? this.el.sceneEl.querySelectorAll(data.objects)\n      : this.el.sceneEl.children;\n    this.objects = flattenChildrenShallow(els);\n    this.dirty = false;\n  },\n\n  /**\n   * Check for intersections and cleared intersections on an interval.\n   */\n  tick: function (time) {\n    var data = this.data;\n    var prevCheckTime = this.prevCheckTime;\n\n    // Only check for intersection if interval time has passed.\n    if (prevCheckTime && (time - prevCheckTime < data.interval)) { return; }\n\n    // Update check time.\n    this.prevCheckTime = time;\n    this.checkIntersections();\n  },\n\n  /**\n   * Raycast for intersections and emit events for current and cleared inersections.\n   */\n  checkIntersections: (function () {\n    var intersections = [];\n\n    return function () {\n      var clearedIntersectedEls = this.clearedIntersectedEls;\n      var el = this.el;\n      var data = this.data;\n      var i;\n      var intersectedEls = this.intersectedEls;\n      var intersection;\n      var lineLength;\n      var newIntersectedEls = this.newIntersectedEls;\n      var newIntersections = this.newIntersections;\n      var prevIntersectedEls = this.prevIntersectedEls;\n      var rawIntersections;\n      var self = this;\n\n      if (!this.data.enabled) { return; }\n\n      // Refresh the object whitelist if needed.\n      if (this.dirty) { this.refreshObjects(); }\n\n      // Store old previously intersected entities.\n      copyArray(this.prevIntersectedEls, this.intersectedEls);\n\n      // Raycast.\n      this.updateOriginDirection();\n      rawIntersections = this.raycaster.intersectObjects(this.objects, data.recursive);\n\n      // Only keep intersections against objects that have a reference to an entity.\n      intersections.length = 0;\n      intersectedEls.length = 0;\n      for (i = 0; i < rawIntersections.length; i++) {\n        intersection = rawIntersections[i];\n        // Don't intersect with own line.\n        if (data.showLine && intersection.object === el.getObject3D('line')) {\n          continue;\n        }\n        if (intersection.object.el) {\n          intersections.push(intersection);\n          intersectedEls.push(intersection.object.el);\n        }\n      }\n\n      // Get newly intersected entities.\n      newIntersections.length = 0;\n      newIntersectedEls.length = 0;\n      for (i = 0; i < intersections.length; i++) {\n        if (prevIntersectedEls.indexOf(intersections[i].object.el) === -1) {\n          newIntersections.push(intersections[i]);\n          newIntersectedEls.push(intersections[i].object.el);\n        }\n      }\n\n      // Emit intersection cleared on both entities per formerly intersected entity.\n      clearedIntersectedEls.length = 0;\n      for (i = 0; i < prevIntersectedEls.length; i++) {\n        if (intersectedEls.indexOf(prevIntersectedEls[i]) !== -1) { continue; }\n        prevIntersectedEls[i].emit('raycaster-intersected-cleared',\n                                   this.intersectedClearedDetail);\n        clearedIntersectedEls.push(prevIntersectedEls[i]);\n      }\n      if (clearedIntersectedEls.length) {\n        el.emit('raycaster-intersection-cleared', this.intersectionClearedDetail);\n      }\n\n      // Emit intersected on intersected entity per intersected entity.\n      for (i = 0; i < newIntersectedEls.length; i++) {\n        newIntersectedEls[i].emit('raycaster-intersected', {\n          el: el,\n          intersection: newIntersections[i]\n        });\n      }\n\n      // Emit all intersections at once on raycasting entity.\n      if (newIntersections.length) {\n        el.emit('raycaster-intersection', {\n          els: newIntersectedEls,\n          intersections: newIntersections\n        });\n      }\n\n      // Update line length.\n      setTimeout(function () {\n        if (self.data.showLine) {\n          if (intersections.length) {\n            if (intersections[0].object.el === el && intersections[1]) {\n              lineLength = intersections[1].distance;\n            } else {\n              lineLength = intersections[0].distance;\n            }\n          }\n          self.drawLine(lineLength);\n        }\n      });\n    };\n  })(),\n\n  /**\n   * Update origin and direction of raycaster using entity transforms and supplied origin or\n   * direction offsets.\n   */\n  updateOriginDirection: (function () {\n    var direction = new THREE.Vector3();\n    var originVec3 = new THREE.Vector3();\n\n    // Closure to make quaternion/vector3 objects private.\n    return function updateOriginDirection () {\n      var el = this.el;\n      var data = this.data;\n\n      if (data.useWorldCoordinates) {\n        this.raycaster.set(data.origin, data.direction);\n        return;\n      }\n\n      // Grab the position and rotation.\n      el.object3D.updateMatrixWorld();\n      el.object3D.getWorldPosition(originVec3);\n\n      // If non-zero origin, translate the origin into world space.\n      if (data.origin.x !== 0 || data.origin.y !== 0 || data.origin.z !== 0) {\n        originVec3 = el.object3D.localToWorld(originVec3.copy(data.origin));\n      }\n\n      // three.js raycaster direction is relative to 0, 0, 0 NOT the origin / offset we\n      // provide. Apply the offset to the direction, then rotation from the object,\n      // and normalize.\n      direction.copy(data.direction).transformDirection(el.object3D.matrixWorld).normalize();\n\n      // Apply offset and direction, in world coordinates.\n      this.raycaster.set(originVec3, direction);\n    };\n  })(),\n\n  /**\n   * Create or update line to give raycaster visual representation.\n   * Customize the line through through line component.\n   * We draw the line in the raycaster component to customize the line to the\n   * raycaster's origin, direction, and far.\n   *\n   * Unlike the raycaster, we create the line as a child of the object. The line will\n   * be affected by the transforms of the objects, so we don't have to calculate transforms\n   * like we do with the raycaster.\n   *\n   * @param {number} length - Length of line. Pass in to shorten the line to the intersection\n   *   point. If not provided, length will default to the max length, `raycaster.far`.\n   */\n  drawLine: function (length) {\n    var data = this.data;\n    var el = this.el;\n    var endVec3;\n\n    // Switch each time vector so line update triggered and to avoid unnecessary vector clone.\n    endVec3 = this.lineData.end === this.lineEndVec3\n      ? this.otherLineEndVec3\n      : this.lineEndVec3;\n\n    // Treat Infinity as 1000m for the line.\n    if (length === undefined) {\n      length = data.far === Infinity ? 1000 : data.far;\n    }\n\n    // Update the length of the line if given. `unitLineEndVec3` is the direction\n    // given by data.direction, then we apply a scalar to give it a length.\n    this.lineData.start = data.origin;\n    this.lineData.end = endVec3.copy(this.unitLineEndVec3).multiplyScalar(length);\n    el.setAttribute('line', this.lineData);\n  }\n});\n\n/**\n * Returns children of each element's object3D group. Children are flattened\n * by one level, removing the THREE.Group wrapper, so that non-recursive\n * raycasting remains useful.\n *\n * @param  {Array<Element>} els\n * @return {Array<THREE.Object3D>}\n */\nfunction flattenChildrenShallow (els) {\n  var groups = [];\n  var objects = [];\n  var children;\n  var i;\n\n  // Push meshes onto list of objects to intersect.\n  for (i = 0; i < els.length; i++) {\n    if (els[i].object3D) {\n      groups.push(els[i].object3D);\n    }\n  }\n\n  // Each entity's root is a THREE.Group. Return the group's chilrden.\n  for (i = 0; i < groups.length; i++) {\n    children = groups[i].children;\n    if (children && children.length) {\n      objects.push.apply(objects, children);\n    }\n  }\n\n  return objects;\n}\n\n/**\n * Copy contents of one array to another without allocating new array.\n */\nfunction copyArray (a, b) {\n  var i;\n  a.length = b.length;\n  for (i = 0; i < b.length; i++) {\n    a[i] = b[i];\n  }\n}\n","var degToRad = require('../lib/three').Math.degToRad;\nvar registerComponent = require('../core/component').registerComponent;\n\nmodule.exports.Component = registerComponent('rotation', {\n  schema: {type: 'vec3'},\n\n  /**\n   * Updates object3D rotation.\n   */\n  update: function () {\n    var data = this.data;\n    var object3D = this.el.object3D;\n    object3D.rotation.set(degToRad(data.x), degToRad(data.y), degToRad(data.z));\n    object3D.rotation.order = 'YXZ';\n  }\n});\n","var registerComponent = require('../core/component').registerComponent;\n\n// Avoids triggering a zero-determinant which makes object3D matrix non-invertible.\nvar zeroScale = 0.00001;\n\nmodule.exports.Component = registerComponent('scale', {\n  schema: {\n    type: 'vec3',\n    default: {x: 1, y: 1, z: 1}\n  },\n\n  update: function () {\n    var data = this.data;\n    var object3D = this.el.object3D;\n    var x = data.x === 0 ? zeroScale : data.x;\n    var y = data.y === 0 ? zeroScale : data.y;\n    var z = data.z === 0 ? zeroScale : data.z;\n    object3D.scale.set(x, y, z);\n  }\n});\n","var register = require('../../core/component').registerComponent;\n\nmodule.exports.Component = register('debug', {\n  schema: {default: true}\n});\n","var registerComponent = require('../../core/component').registerComponent;\n\n/**\n * Component to embed an a-frame scene within the layout of a 2D page.\n */\nmodule.exports.Component = registerComponent('embedded', {\n  dependencies: ['vr-mode-ui'],\n\n  schema: {default: true},\n\n  update: function () {\n    var sceneEl = this.el;\n    var enterVREl = sceneEl.querySelector('.a-enter-vr');\n    if (this.data === true) {\n      if (enterVREl) { enterVREl.classList.add('embedded'); }\n      sceneEl.removeFullScreenStyles();\n    } else {\n      if (enterVREl) { enterVREl.classList.remove('embedded'); }\n      sceneEl.addFullScreenStyles();\n    }\n  }\n\n});\n","var register = require('../../core/component').registerComponent;\nvar THREE = require('../../lib/three');\nvar debug = require('../../utils/debug');\n\nvar warn = debug('components:fog:warn');\n\n/**\n * Fog component.\n * Applies only to the scene entity.\n */\nmodule.exports.Component = register('fog', {\n  schema: {\n    color: {type: 'color', default: '#000'},\n    density: {default: 0.00025},\n    far: {default: 1000, min: 0},\n    near: {default: 1, min: 0},\n    type: {default: 'linear', oneOf: ['linear', 'exponential']}\n  },\n\n  update: function () {\n    var data = this.data;\n    var el = this.el;\n    var fog = this.el.object3D.fog;\n\n    if (!el.isScene) {\n      warn('Fog component can only be applied to <a-scene>');\n      return;\n    }\n\n    // (Re)create fog if fog doesn't exist or fog type changed.\n    if (!fog || data.type !== fog.name) {\n      el.object3D.fog = getFog(data);\n      el.systems.material.updateMaterials();\n      return;\n    }\n\n    // Fog data changed. Update fog.\n    Object.keys(this.schema).forEach(function (key) {\n      var value = data[key];\n      if (key === 'color') { value = new THREE.Color(value); }\n      fog[key] = value;\n    });\n  },\n\n  /**\n   * Remove fog on remove (callback).\n   */\n  remove: function () {\n    var fog = this.el.object3D.fog;\n    if (!fog) { return; }\n    fog.far = 0;\n    fog.near = 0.1;\n  }\n});\n\n/**\n * Creates a fog object. Sets fog.name to be able to detect fog type changes.\n *\n * @param {object} data - Fog data.\n * @returns {object} fog\n */\nfunction getFog (data) {\n  var fog;\n  if (data.type === 'exponential') {\n    fog = new THREE.FogExp2(data.color, data.density);\n  } else {\n    fog = new THREE.Fog(data.color, data.near, data.far);\n  }\n  fog.name = data.type;\n  return fog;\n}\n","/* global AFRAME */\nvar AFRAME_INJECTED = require('../../constants').AFRAME_INJECTED;\nvar bind = require('../../utils/bind');\nvar pkg = require('../../../package');\nvar registerComponent = require('../../core/component').registerComponent;\n\n/**\n * 0.4.2 to 0.4.x\n * Will need to update this when A-Frame goes to 1.x.x.\n */\nfunction getFuzzyPatchVersion (version) {\n  var split = version.split('.');\n  split[2] = 'x';\n  return split.join('.');\n}\n\nvar INSPECTOR_DEV_URL = 'https://aframe.io/aframe-inspector/dist/aframe-inspector.js';\nvar INSPECTOR_RELEASE_URL = 'https://unpkg.com/aframe-inspector@' + getFuzzyPatchVersion(pkg.version) + '/dist/aframe-inspector.min.js';\nvar INSPECTOR_URL = process.env.INSPECTOR_VERSION === 'dev' ? INSPECTOR_DEV_URL : INSPECTOR_RELEASE_URL;\nvar LOADING_MESSAGE = 'Loading Inspector';\nvar LOADING_ERROR_MESSAGE = 'Error loading Inspector';\n\nmodule.exports.Component = registerComponent('inspector', {\n  schema: {\n    url: {default: INSPECTOR_URL}\n  },\n\n  init: function () {\n    this.onKeydown = bind(this.onKeydown, this);\n    this.onMessage = bind(this.onMessage, this);\n    this.initOverlay();\n    window.addEventListener('keydown', this.onKeydown);\n    window.addEventListener('message', this.onMessage);\n  },\n\n  initOverlay: function () {\n    var dotsHTML = '<span class=\"dots\"><span>.</span><span>.</span><span>.</span></span>';\n    this.loadingMessageEl = document.createElement('div');\n    this.loadingMessageEl.classList.add('a-inspector-loader');\n    this.loadingMessageEl.innerHTML = LOADING_MESSAGE + dotsHTML;\n  },\n\n  remove: function () {\n    this.removeEventListeners();\n  },\n\n  /**\n   * <ctrl> + <alt> + i keyboard shortcut.\n   */\n  onKeydown: function (evt) {\n    var shortcutPressed = evt.keyCode === 73 && evt.ctrlKey && evt.altKey;\n    if (!this.data || !shortcutPressed) { return; }\n    this.injectInspector();\n  },\n\n  showLoader: function () {\n    document.body.appendChild(this.loadingMessageEl);\n  },\n\n  hideLoader: function () {\n    document.body.removeChild(this.loadingMessageEl);\n  },\n\n  /**\n   * postMessage. aframe.io uses this to create a button on examples to open Inspector.\n   */\n  onMessage: function (evt) {\n    if (evt.data === 'INJECT_AFRAME_INSPECTOR') { this.injectInspector(); }\n  },\n\n  injectInspector: function () {\n    var self = this;\n    var script;\n\n    if (AFRAME.INSPECTOR || AFRAME.inspectorInjected) { return; }\n\n    this.showLoader();\n\n    // Inject.\n    script = document.createElement('script');\n    script.src = this.data.url;\n    script.setAttribute('data-name', 'aframe-inspector');\n    script.setAttribute(AFRAME_INJECTED, '');\n    script.onload = function () {\n      AFRAME.INSPECTOR.open();\n      self.hideLoader();\n      self.removeEventListeners();\n    };\n    script.onerror = function () {\n      self.loadingMessageEl.innerHTML = LOADING_ERROR_MESSAGE;\n    };\n    document.head.appendChild(script);\n    AFRAME.inspectorInjected = true;\n  },\n\n  removeEventListeners: function () {\n    window.removeEventListener('keydown', this.onKeydown);\n    window.removeEventListener('message', this.onMessage);\n  }\n});\n","var registerComponent = require('../../core/component').registerComponent;\nvar shouldCaptureKeyEvent = require('../../utils/').shouldCaptureKeyEvent;\n\nmodule.exports.Component = registerComponent('keyboard-shortcuts', {\n  schema: {\n    enterVR: {default: true},\n    exitVR: {default: true}\n  },\n\n  init: function () {\n    var self = this;\n    var scene = this.el;\n\n    this.listener = window.addEventListener('keyup', function (event) {\n      if (!shouldCaptureKeyEvent(event)) { return; }\n      if (self.enterVREnabled && event.keyCode === 70) {  // f.\n        scene.enterVR();\n      }\n      if (self.enterVREnabled && event.keyCode === 27) {  // escape.\n        scene.exitVR();\n      }\n    }, false);\n  },\n\n  update: function (oldData) {\n    var data = this.data;\n    this.enterVREnabled = data.enterVR;\n  },\n\n  remove: function () {\n    window.removeEventListener('keyup', this.listener);\n  }\n});\n","var debug = require('../../utils/debug');\nvar registerComponent = require('../../core/component').registerComponent;\n\nvar warn = debug('components:pool:warn');\n\n/**\n * Pool component.\n * A pool of entities that will be reused.\n * It avoids creating and destroying the same kind of entities\n * in dynamic scenes. It will help reduce GC pauses. Useful for example\n * in a game where you want to reuse enemies entities.\n *\n * @member {array} availableEls - Available entities in the pool.\n * @member {array} usedEls - Entities of the pool in use.\n *\n */\nmodule.exports.Component = registerComponent('pool', {\n  schema: {\n    mixin: {default: ''},\n    size: {default: 0},\n    dynamic: {default: false}\n  },\n\n  multiple: true,\n\n  initPool: function () {\n    var i;\n    var mixin = this.data.mixin;\n    if (!mixin) { return; }\n    this.availableEls = [];\n    this.usedEls = [];\n    for (i = 0; i < this.data.size; ++i) {\n      this.createEntity();\n    }\n  },\n\n  update: function (oldData) {\n    var data = this.data;\n    if (oldData.mixin !== data.mixin || oldData.size !== data.size) {\n      this.initPool();\n    }\n  },\n\n  /**\n   * Add a new entity to the list of available entities.\n   */\n  createEntity: function () {\n    var el = document.createElement('a-entity');\n    el.play = this.wrapPlay(el.play);\n    el.setAttribute('mixin', this.data.mixin);\n    el.setAttribute('visible', false);\n    this.el.appendChild(el);\n    this.availableEls.push(el);\n  },\n\n  /**\n   * Play wrapper for pooled entities. When pausing and playing\n   * a scene we don't want to play the entities that are not in use\n   */\n  wrapPlay: function (playMethod) {\n    var usedEls = this.usedEls;\n    return function () {\n      if (usedEls.indexOf(this) === -1) { return; }\n      playMethod.call(this);\n    };\n  },\n\n  /**\n   * Used to request one of the available entities of the pool\n   */\n  requestEntity: function () {\n    var el;\n    if (this.availableEls.length === 0) {\n      if (this.data.dynamic === false) {\n        warn('Requested entity from empty pool ' + this.name);\n        return;\n      } else {\n        warn('Requested entity from empty pool. This pool is dynamic' +\n        'and will resize automatically. You might want to increase its initial size' + this.name);\n      }\n      this.createEntity();\n    }\n    el = this.availableEls.shift();\n    this.usedEls.push(el);\n    el.setAttribute('visible', true);\n    return el;\n  },\n\n  /**\n   * Used to return a used entity to the pool\n   */\n  returnEntity: function (el) {\n    var index = this.usedEls.indexOf(el);\n    if (index === -1) {\n      warn('The returned entity was not previously pooled from ' + this.name);\n      return;\n    }\n    this.usedEls.splice(index, 1);\n    this.availableEls.push(el);\n    el.setAttribute('visible', false);\n    el.pause();\n  }\n});\n","/* global ImageData, URL */\nvar registerComponent = require('../../core/component').registerComponent;\nvar THREE = require('../../lib/three');\n\nvar VERTEX_SHADER = [\n  'attribute vec3 position;',\n  'attribute vec2 uv;',\n  'uniform mat4 projectionMatrix;',\n  'uniform mat4 modelViewMatrix;',\n  'varying vec2 vUv;',\n  'void main()  {',\n  '  vUv = vec2( 1.- uv.x, uv.y );',\n  '  gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );',\n  '}'\n].join('\\n');\n\nvar FRAGMENT_SHADER = [\n  'precision mediump float;',\n  'uniform samplerCube map;',\n  'varying vec2 vUv;',\n  '#define M_PI 3.141592653589793238462643383279',\n  'void main() {',\n  '  vec2 uv = vUv;',\n  '  float longitude = uv.x * 2. * M_PI - M_PI + M_PI / 2.;',\n  '  float latitude = uv.y * M_PI;',\n  '  vec3 dir = vec3(',\n  '    - sin( longitude ) * sin( latitude ),',\n  '    cos( latitude ),',\n  '    - cos( longitude ) * sin( latitude )',\n  '  );',\n  '  normalize( dir );',\n  '  gl_FragColor = vec4( textureCube( map, dir ).rgb, 1.0 );',\n  '}'\n].join('\\n');\n\n/**\n * Component to take screenshots of the scene using a keboard shortcut (alt+s).\n * It can be configured to either take 360&deg; captures (`equirectangular`)\n * or regular screenshots (`projection`)\n *\n * This is based on https://github.com/spite/THREE.CubemapToEquirectangular\n * To capture an equirectangular projection of the scene a THREE.CubeCamera is used\n * The cube map produced by the CubeCamera is projected on a quad and then rendered to\n * WebGLRenderTarget with an ortographic camera.\n */\nmodule.exports.Component = registerComponent('screenshot', {\n  schema: {\n    width: {default: 4096},\n    height: {default: 2048}\n  },\n\n  init: function () {\n    var el = this.el;\n    var self = this;\n\n    if (el.renderer) {\n      setup();\n    } else {\n      el.addEventListener('render-target-loaded', setup);\n    }\n\n    function setup () {\n      var gl = el.renderer.getContext();\n      self.cubeMapSize = gl.getParameter(gl.MAX_CUBE_MAP_TEXTURE_SIZE);\n      self.material = new THREE.RawShaderMaterial({\n        uniforms: {map: {type: 't', value: null}},\n        vertexShader: VERTEX_SHADER,\n        fragmentShader: FRAGMENT_SHADER,\n        side: THREE.DoubleSide\n      });\n      self.quad = new THREE.Mesh(\n        new THREE.PlaneBufferGeometry(1, 1),\n        self.material\n      );\n      self.quad.visible = false;\n      self.camera = new THREE.OrthographicCamera(-1 / 2, 1 / 2, 1 / 2, -1 / 2, -10000, 10000);\n      self.canvas = document.createElement('canvas');\n      self.ctx = self.canvas.getContext('2d');\n      if (el.camera) { el.camera.add(self.quad); }\n      self.onKeyDown = self.onKeyDown.bind(self);\n      self.onCameraActive = self.onCameraActive.bind(self);\n      el.addEventListener('camera-set-active', self.onCameraActive);\n    }\n  },\n\n  getRenderTarget: function (width, height) {\n    return new THREE.WebGLRenderTarget(width, height, {\n      minFilter: THREE.LinearFilter,\n      magFilter: THREE.LinearFilter,\n      wrapS: THREE.ClampToEdgeWrapping,\n      wrapT: THREE.ClampToEdgeWrapping,\n      format: THREE.RGBAFormat,\n      type: THREE.UnsignedByteType\n    });\n  },\n\n  resize: function (width, height) {\n    // Resize quad.\n    this.quad.scale.set(width, height, 1);\n\n    // Resize camera.\n    this.camera.left = -1 * width / 2;\n    this.camera.right = width / 2;\n    this.camera.top = height / 2;\n    this.camera.bottom = -1 * height / 2;\n    this.camera.updateProjectionMatrix();\n\n    // Resize canvas.\n    this.canvas.width = width;\n    this.canvas.height = height;\n  },\n\n  play: function () {\n    window.addEventListener('keydown', this.onKeyDown);\n  },\n\n  onCameraActive: function (evt) {\n    var cameraParent = this.quad.parent;\n    if (cameraParent) { cameraParent.remove(this.quad); }\n    evt.detail.cameraEl.getObject3D('camera').add(this.quad);\n  },\n\n  /**\n   * <ctrl> + <alt> + s = Regular screenshot.\n   * <ctrl> + <alt> + <shift> + s = Equirectangular screenshot.\n  */\n  onKeyDown: function (evt) {\n    var shortcutPressed = evt.keyCode === 83 && evt.ctrlKey && evt.altKey;\n    if (!this.data || !shortcutPressed) { return; }\n    var projection = evt.shiftKey ? 'equirectangular' : 'perspective';\n    this.capture(projection);\n  },\n\n  /**\n   * Capture a screenshot of the scene.\n   *\n   * @param {string} projection - Screenshot projection (equirectangular or perspective).\n   */\n  setCapture: function (projection) {\n    var el = this.el;\n    var size;\n    var camera;\n    var cubeCamera;\n    // Configure camera.\n    if (projection === 'perspective') {\n      // Quad is only used in equirectangular mode. Hide it in this case.\n      this.quad.visible = false;\n      // Use scene camera.\n      camera = el.camera;\n      size = {width: this.data.width, height: this.data.height};\n    } else {\n      // Use ortho camera.\n      camera = this.camera;\n      // Copy position and rotation of scene camera into the ortho one.\n      camera.position.copy(el.camera.getWorldPosition());\n      camera.rotation.copy(el.camera.getWorldRotation());\n      // Create cube camera and copy position from scene camera.\n      cubeCamera = new THREE.CubeCamera(el.camera.near, el.camera.far,\n                                        Math.min(this.cubeMapSize, 2048));\n      cubeCamera.position.copy(el.camera.getWorldPosition());\n      cubeCamera.rotation.copy(el.camera.getWorldRotation());\n      // Render scene with cube camera.\n      cubeCamera.updateCubeMap(el.renderer, el.object3D);\n      this.quad.material.uniforms.map.value = cubeCamera.renderTarget.texture;\n      size = {width: this.data.width, height: this.data.height};\n      // Use quad to project image taken by the cube camera.\n      this.quad.visible = true;\n    }\n    return {\n      camera: camera,\n      size: size,\n      projection: projection\n    };\n  },\n\n  /**\n   * Maintained for backwards compatibility.\n   */\n  capture: function (projection) {\n    var params = this.setCapture(projection);\n    this.renderCapture(params.camera, params.size, params.projection);\n    // Trigger file download.\n    this.saveCapture();\n  },\n\n  /**\n   * Return canvas instead of triggering download (e.g., for uploading blob to server).\n   */\n  getCanvas: function (projection) {\n    var params = this.setCapture(projection);\n    this.renderCapture(params.camera, params.size, params.projection);\n    return this.canvas;\n  },\n\n  renderCapture: function (camera, size, projection) {\n    var autoClear = this.el.renderer.autoClear;\n    var el = this.el;\n    var imageData;\n    var output;\n    var pixels;\n    var renderer = this.el.renderer;\n    // Create rendering target and buffer to store the read pixels.\n    output = this.getRenderTarget(size.width, size.height);\n    pixels = new Uint8Array(4 * size.width * size.height);\n    // Resize quad, camera, and canvas.\n    this.resize(size.width, size.height);\n    // Render scene to render target.\n    renderer.autoClear = true;\n    renderer.render(el.object3D, camera, output, true);\n    renderer.autoClear = autoClear;\n    // Read image pizels back.\n    renderer.readRenderTargetPixels(output, 0, 0, size.width, size.height, pixels);\n    if (projection === 'perspective') {\n      pixels = this.flipPixelsVertically(pixels, size.width, size.height);\n    }\n    imageData = new ImageData(new Uint8ClampedArray(pixels), size.width, size.height);\n    // Hide quad after projecting the image.\n    this.quad.visible = false;\n    // Copy pixels into canvas.\n    this.ctx.putImageData(imageData, 0, 0);\n  },\n\n  flipPixelsVertically: function (pixels, width, height) {\n    var flippedPixels = pixels.slice(0);\n    for (var x = 0; x < width; ++x) {\n      for (var y = 0; y < height; ++y) {\n        flippedPixels[x * 4 + y * width * 4] = pixels[x * 4 + (height - y) * width * 4];\n        flippedPixels[x * 4 + 1 + y * width * 4] = pixels[x * 4 + 1 + (height - y) * width * 4];\n        flippedPixels[x * 4 + 2 + y * width * 4] = pixels[x * 4 + 2 + (height - y) * width * 4];\n        flippedPixels[x * 4 + 3 + y * width * 4] = pixels[x * 4 + 3 + (height - y) * width * 4];\n      }\n    }\n    return flippedPixels;\n  },\n\n  /**\n   * Download capture to file.\n   */\n  saveCapture: function () {\n    this.canvas.toBlob(function (blob) {\n      var fileName = 'screenshot-' + document.title.toLowerCase() + '-' + Date.now() + '.png';\n      var linkEl = document.createElement('a');\n      var url = URL.createObjectURL(blob);\n      linkEl.href = url;\n      linkEl.setAttribute('download', fileName);\n      linkEl.innerHTML = 'downloading...';\n      linkEl.style.display = 'none';\n      document.body.appendChild(linkEl);\n      setTimeout(function () {\n        linkEl.click();\n        document.body.removeChild(linkEl);\n      }, 1);\n    }, 'image/png');\n  }\n});\n","var registerComponent = require('../../core/component').registerComponent;\nvar RStats = require('../../../vendor/rStats');\nvar utils = require('../../utils');\nrequire('../../../vendor/rStats.extras');\nrequire('../../lib/rStatsAframe');\n\nvar AFrameStats = window.aframeStats;\nvar bind = utils.bind;\nvar HIDDEN_CLASS = 'a-hidden';\nvar ThreeStats = window.threeStats;\n\n/**\n * Stats appended to document.body by RStats.\n */\nmodule.exports.Component = registerComponent('stats', {\n  schema: {default: true},\n\n  init: function () {\n    var scene = this.el;\n\n    if (utils.getUrlParameter('stats') === 'false') { return; }\n\n    this.stats = createStats(scene);\n    this.statsEl = document.querySelector('.rs-base');\n\n    this.hideBound = bind(this.hide, this);\n    this.showBound = bind(this.show, this);\n\n    scene.addEventListener('enter-vr', this.hideBound);\n    scene.addEventListener('exit-vr', this.showBound);\n  },\n\n  update: function () {\n    if (!this.stats) { return; }\n    return (!this.data) ? this.hide() : this.show();\n  },\n\n  remove: function () {\n    this.el.removeEventListener('enter-vr', this.hideBound);\n    this.el.removeEventListener('exit-vr', this.showBound);\n    if (!this.statsEl) { return; }  // Scene detached.\n    this.statsEl.parentNode.removeChild(this.statsEl);\n  },\n\n  tick: function () {\n    var stats = this.stats;\n\n    if (!stats) { return; }\n\n    stats('rAF').tick();\n    stats('FPS').frame();\n    stats().update();\n  },\n\n  hide: function () {\n    this.statsEl.classList.add(HIDDEN_CLASS);\n  },\n\n  show: function () {\n    this.statsEl.classList.remove(HIDDEN_CLASS);\n  }\n});\n\nfunction createStats (scene) {\n  var threeStats = new ThreeStats(scene.renderer);\n  var aframeStats = new AFrameStats(scene);\n  var plugins = scene.isMobile ? [] : [threeStats, aframeStats];\n  return new RStats({\n    css: [],  // Our stylesheet is injected from `src/index.js`.\n    values: {\n      fps: {caption: 'fps', below: 30}\n    },\n    groups: [\n      {caption: 'Framerate', values: ['fps', 'raf']}\n    ],\n    plugins: plugins\n  });\n}\n","var registerComponent = require('../../core/component').registerComponent;\nvar constants = require('../../constants/');\nvar utils = require('../../utils/');\nvar bind = utils.bind;\n\nvar ENTER_VR_CLASS = 'a-enter-vr';\nvar ENTER_VR_BTN_CLASS = 'a-enter-vr-button';\nvar HIDDEN_CLASS = 'a-hidden';\nvar ORIENTATION_MODAL_CLASS = 'a-orientation-modal';\n\n/**\n * UI for entering VR mode.\n */\nmodule.exports.Component = registerComponent('vr-mode-ui', {\n  dependencies: ['canvas'],\n\n  schema: {\n    enabled: {default: true}\n  },\n\n  init: function () {\n    var self = this;\n    var sceneEl = this.el;\n\n    if (utils.getUrlParameter('ui') === 'false') { return; }\n\n    this.insideLoader = false;\n    this.enterVREl = null;\n    this.orientationModalEl = null;\n    this.bindMethods();\n\n    // Hide/show VR UI when entering/exiting VR mode.\n    sceneEl.addEventListener('enter-vr', this.updateEnterVRInterface);\n    sceneEl.addEventListener('exit-vr', this.updateEnterVRInterface);\n\n    window.addEventListener('message', function (event) {\n      if (event.data.type === 'loaderReady') {\n        self.insideLoader = true;\n        self.remove();\n      }\n    });\n\n    // Modal that tells the user to change orientation if in portrait.\n    window.addEventListener('orientationchange', this.toggleOrientationModalIfNeeded);\n  },\n\n  bindMethods: function () {\n    this.onEnterVRButtonClick = bind(this.onEnterVRButtonClick, this);\n    this.onModalClick = bind(this.onModalClick, this);\n    this.toggleOrientationModalIfNeeded = bind(this.toggleOrientationModalIfNeeded, this);\n    this.updateEnterVRInterface = bind(this.updateEnterVRInterface, this);\n  },\n\n  /**\n   * Exit VR when modal clicked.\n   */\n  onModalClick: function () {\n    this.el.exitVR();\n  },\n\n  /**\n   * Enter VR when modal clicked.\n   */\n  onEnterVRButtonClick: function () {\n    this.el.enterVR();\n  },\n\n  update: function () {\n    var sceneEl = this.el;\n\n    if (!this.data.enabled || this.insideLoader || utils.getUrlParameter('ui') === 'false') {\n      return this.remove();\n    }\n    if (this.enterVREl || this.orientationModalEl) { return; }\n\n    // Add UI if enabled and not already present.\n    this.enterVREl = createEnterVRButton(this.onEnterVRButtonClick);\n    sceneEl.appendChild(this.enterVREl);\n\n    this.orientationModalEl = createOrientationModal(this.onModalClick);\n    sceneEl.appendChild(this.orientationModalEl);\n\n    this.updateEnterVRInterface();\n  },\n\n  remove: function () {\n    [this.enterVREl, this.orientationModalEl].forEach(function (uiElement) {\n      if (uiElement) {\n        uiElement.parentNode.removeChild(uiElement);\n      }\n    });\n  },\n\n  updateEnterVRInterface: function () {\n    this.toggleEnterVRButtonIfNeeded();\n    this.toggleOrientationModalIfNeeded();\n  },\n\n  toggleEnterVRButtonIfNeeded: function () {\n    var sceneEl = this.el;\n    if (!this.enterVREl) { return; }\n    if (sceneEl.is('vr-mode')) {\n      this.enterVREl.classList.add(HIDDEN_CLASS);\n    } else {\n      this.enterVREl.classList.remove(HIDDEN_CLASS);\n    }\n  },\n\n  toggleOrientationModalIfNeeded: function () {\n    var sceneEl = this.el;\n    var orientationModalEl = this.orientationModalEl;\n    if (!orientationModalEl || !sceneEl.isMobile) { return; }\n    if (!utils.device.isLandscape() && sceneEl.is('vr-mode')) {\n      // Show if in VR mode on portrait.\n      orientationModalEl.classList.remove(HIDDEN_CLASS);\n    } else {\n      orientationModalEl.classList.add(HIDDEN_CLASS);\n    }\n  }\n});\n\n/**\n * Create a button that when clicked will enter into stereo-rendering mode for VR.\n *\n * Structure: <div><button></div>\n *\n * @param {function} onClick - click event handler\n * @returns {Element} Wrapper <div>.\n */\nfunction createEnterVRButton (onClick) {\n  var vrButton;\n  var wrapper;\n\n  // Create elements.\n  wrapper = document.createElement('div');\n  wrapper.classList.add(ENTER_VR_CLASS);\n  wrapper.setAttribute(constants.AFRAME_INJECTED, '');\n  vrButton = document.createElement('button');\n  vrButton.className = ENTER_VR_BTN_CLASS;\n  vrButton.setAttribute('title', 'Enter VR mode with a headset or fullscreen mode on a desktop. Visit https://webvr.rocks or https://webvr.info for more information.');\n  vrButton.setAttribute(constants.AFRAME_INJECTED, '');\n\n  // Insert elements.\n  wrapper.appendChild(vrButton);\n  vrButton.addEventListener('click', function (evt) {\n    onClick();\n  });\n  return wrapper;\n}\n\n/**\n * Creates a modal dialog to request the user to switch to landscape orientation.\n *\n * @param {function} onClick - click event handler\n * @returns {Element} Wrapper <div>.\n */\nfunction createOrientationModal (onClick) {\n  var modal = document.createElement('div');\n  modal.className = ORIENTATION_MODAL_CLASS;\n  modal.classList.add(HIDDEN_CLASS);\n  modal.setAttribute(constants.AFRAME_INJECTED, '');\n\n  var exit = document.createElement('button');\n  exit.setAttribute(constants.AFRAME_INJECTED, '');\n  exit.innerHTML = 'Exit VR';\n\n  // Exit VR on close.\n  exit.addEventListener('click', onClick);\n\n  modal.appendChild(exit);\n\n  return modal;\n}\n","var component = require('../core/component');\nvar THREE = require('../lib/three');\nvar bind = require('../utils/bind');\nvar registerComponent = component.registerComponent;\n\n/**\n * Shadow component.\n *\n * When applied to an entity, that entity's geometry and any descendants will cast or receive\n * shadows as specified by the `cast` and `receive` properties.\n */\nmodule.exports.Component = registerComponent('shadow', {\n  schema: {\n    cast: {default: true},\n    receive: {default: true}\n  },\n\n  init: function () {\n    this.onMeshChanged = bind(this.update, this);\n    this.el.addEventListener('object3dset', this.onMeshChanged);\n    this.system.setShadowMapEnabled(true);\n  },\n\n  update: function () {\n    var data = this.data;\n    this.updateDescendants(data.cast, data.receive);\n  },\n\n  remove: function () {\n    var el = this.el;\n    el.removeEventListener('object3dset', this.onMeshChanged);\n    this.updateDescendants(false, false);\n  },\n\n  updateDescendants: function (cast, receive) {\n    var sceneEl = this.el.sceneEl;\n    this.el.object3D.traverse(function (node) {\n      if (!(node instanceof THREE.Mesh)) { return; }\n\n      node.castShadow = cast;\n      node.receiveShadow = receive;\n\n      // If scene has already rendered, materials must be updated.\n      if (sceneEl.hasLoaded && node.material) {\n        var materials = node.material.materials || [node.material];\n        for (var i = 0; i < materials.length; i++) {\n          materials[i].needsUpdate = true;\n        }\n      }\n    });\n  }\n});\n","var registerComponent = require('../core/component').registerComponent;\nvar debug = require('../utils/debug');\nvar bind = require('../utils/bind');\nvar THREE = require('../lib/three');\n\nvar warn = debug('components:sound:warn');\n\n/**\n * Sound component.\n */\nmodule.exports.Component = registerComponent('sound', {\n  schema: {\n    autoplay: {default: false},\n    distanceModel: {default: 'inverse',\n      oneOf: ['linear', 'inverse', 'exponential']},\n    loop: {default: false},\n    maxDistance: {default: 10000},\n    on: {default: ''},\n    poolSize: {default: 1},\n    positional: {default: true},\n    refDistance: {default: 1},\n    rolloffFactor: {default: 1},\n    src: {type: 'audio'},\n    volume: {default: 1}\n  },\n\n  multiple: true,\n\n  init: function () {\n    this.listener = null;\n    this.audioLoader = new THREE.AudioLoader();\n    this.pool = new THREE.Group();\n    this.loaded = false;\n    this.mustPlay = false;\n    this.playSound = bind(this.playSound, this);\n  },\n\n  update: function (oldData) {\n    var data = this.data;\n    var srcChanged = data.src !== oldData.src;\n    // Create new sound if not yet created or changing `src`.\n    if (srcChanged) {\n      if (!data.src) {\n        warn('Audio source was not specified with `src`');\n        return;\n      }\n      this.setupSound();\n    }\n\n    this.pool.children.forEach(function (sound) {\n      if (data.positional) {\n        sound.setDistanceModel(data.distanceModel);\n        sound.setMaxDistance(data.maxDistance);\n        sound.setRefDistance(data.refDistance);\n        sound.setRolloffFactor(data.rolloffFactor);\n      }\n      sound.setLoop(data.loop);\n      sound.setVolume(data.volume);\n      sound.isPaused = false;\n    });\n\n    if (data.on !== oldData.on) {\n      this.updateEventListener(oldData.on);\n    }\n    // All sound values set. Load in `src`.\n    if (srcChanged) {\n      var self = this;\n\n      this.loaded = false;\n      this.audioLoader.load(data.src, function (buffer) {\n        self.pool.children.forEach(function (sound) {\n          sound.setBuffer(buffer);\n        });\n        self.loaded = true;\n\n        // Remove this key from cache, otherwise we can't play it again\n        THREE.Cache.remove(data.src);\n        if (self.data.autoplay || self.mustPlay) { self.playSound(); }\n        self.el.emit('sound-loaded');\n      });\n    }\n  },\n\n  pause: function () {\n    this.stopSound();\n    this.removeEventListener();\n  },\n\n  play: function () {\n    if (this.data.autoplay) { this.playSound(); }\n    this.updateEventListener();\n  },\n\n  remove: function () {\n    this.removeEventListener();\n    this.el.removeObject3D(this.attrName);\n    try {\n      this.pool.children.forEach(function (sound) {\n        sound.disconnect();\n      });\n    } catch (e) {\n      // disconnect() will throw if it was never connected initially.\n      warn('Audio source not properly disconnected');\n    }\n  },\n\n  /**\n  *  Update listener attached to the user defined on event.\n  */\n  updateEventListener: function (oldEvt) {\n    var el = this.el;\n    if (oldEvt) { el.removeEventListener(oldEvt, this.playSound); }\n    el.addEventListener(this.data.on, this.playSound);\n  },\n\n  removeEventListener: function () {\n    this.el.removeEventListener(this.data.on, this.playSound);\n  },\n\n  /**\n   * Removes current sound object, creates new sound object, adds to entity.\n   *\n   * @returns {object} sound\n   */\n  setupSound: function () {\n    var el = this.el;\n    var sceneEl = el.sceneEl;\n\n    if (this.pool.children.length > 0) {\n      this.stopSound();\n      el.removeObject3D('sound');\n    }\n\n    // Only want one AudioListener. Cache it on the scene.\n    var listener = this.listener = sceneEl.audioListener || new THREE.AudioListener();\n    sceneEl.audioListener = listener;\n\n    if (sceneEl.camera) {\n      sceneEl.camera.add(listener);\n    }\n\n    // Wait for camera if necessary.\n    sceneEl.addEventListener('camera-set-active', function (evt) {\n      evt.detail.cameraEl.getObject3D('camera').add(listener);\n    });\n\n    // Create [poolSize] audio instances and attach them to pool\n    this.pool = new THREE.Group();\n    for (var i = 0; i < this.data.poolSize; i++) {\n      var sound = this.data.positional ? new THREE.PositionalAudio(listener) : new THREE.Audio(listener);\n      this.pool.add(sound);\n    }\n    el.setObject3D(this.attrName, this.pool);\n\n    this.pool.children.forEach(function (sound) {\n      sound.onEnded = function () {\n        sound.isPlaying = false;\n        el.emit('sound-ended', {index: i});\n      };\n    });\n  },\n\n  /**\n   * Pause all the sounds in the pool.\n   */\n  pauseSound: function () {\n    this.isPlaying = false;\n    this.pool.children.forEach(function (sound) {\n      if (!sound.source || !sound.source.buffer || !sound.isPlaying || sound.isPaused) { return; }\n      sound.isPaused = true;\n      sound.pause();\n    });\n  },\n\n  /**\n   * Look for an unused sound in the pool and play it if found.\n   */\n  playSound: function () {\n    if (!this.loaded) {\n      warn('Sound not loaded yet. It will be played once it finished loading');\n      this.mustPlay = true;\n      return;\n    }\n\n    var found = false;\n    this.isPlaying = true;\n    this.pool.children.forEach(function (sound) {\n      if (!sound.isPlaying && sound.buffer && !found) {\n        sound.play();\n        sound.isPaused = false;\n        found = true;\n        return;\n      }\n    });\n\n    if (!found) {\n      warn('All the sounds are playing. If you need to play more sounds simultaneously ' +\n           'consider increasing the size of pool with the `poolSize` attribute.', this.el);\n      return;\n    }\n\n    this.mustPlay = false;\n  },\n\n  /**\n   * Stop all the sounds in the pool.\n   */\n  stopSound: function () {\n    this.isPlaying = false;\n    this.pool.children.forEach(function (sound) {\n      if (!sound.source || !sound.source.buffer) { return; }\n      sound.stop();\n    });\n  }\n});\n","var createTextGeometry = require('three-bmfont-text');\nvar loadBMFont = require('load-bmfont');\n\nvar registerComponent = require('../core/component').registerComponent;\nvar coreShader = require('../core/shader');\nvar THREE = require('../lib/three');\nvar utils = require('../utils/');\n\nvar error = utils.debug('components:text:error');\nvar shaders = coreShader.shaders;\nvar warn = utils.debug('components:text:warn');\n\n// 1 to match other A-Frame default widths.\nvar DEFAULT_WIDTH = 1;\n\n// @bryik set anisotropy to 16. Improves look of large amounts of text when viewed from angle.\nvar MAX_ANISOTROPY = 16;\n\nvar FONT_BASE_URL = 'https://cdn.aframe.io/fonts/';\nvar FONTS = {\n  aileronsemibold: FONT_BASE_URL + 'Aileron-Semibold.fnt',\n  dejavu: FONT_BASE_URL + 'DejaVu-sdf.fnt',\n  exo2bold: FONT_BASE_URL + 'Exo2Bold.fnt',\n  exo2semibold: FONT_BASE_URL + 'Exo2SemiBold.fnt',\n  kelsonsans: FONT_BASE_URL + 'KelsonSans.fnt',\n  monoid: FONT_BASE_URL + 'Monoid.fnt',\n  mozillavr: FONT_BASE_URL + 'mozillavr.fnt',\n  roboto: FONT_BASE_URL + 'Roboto-msdf.json',\n  sourcecodepro: FONT_BASE_URL + 'SourceCodePro.fnt'\n};\nvar MSDF_FONTS = ['roboto'];\nvar DEFAULT_FONT = 'roboto';\nmodule.exports.FONTS = FONTS;\n\nvar cache = new PromiseCache();\nvar fontWidthFactors = {};\nvar textures = {};\n\n/**\n * SDF-based text component.\n * Based on https://github.com/Jam3/three-bmfont-text.\n *\n * All the stock fonts are for the `sdf` registered shader, an improved version of jam3's\n * original `sdf` shader.\n */\nmodule.exports.Component = registerComponent('text', {\n  multiple: true,\n\n  schema: {\n    align: {type: 'string', default: 'left', oneOf: ['left', 'right', 'center']},\n    alphaTest: {default: 0.5},\n    depthTest: {default: true},\n    depthWrite: {default: true},\n    // `anchor` defaults to center to match geometries.\n    anchor: {default: 'center', oneOf: ['left', 'right', 'center', 'align']},\n    baseline: {default: 'center', oneOf: ['top', 'center', 'bottom']},\n    color: {type: 'color', default: '#FFF'},\n    font: {type: 'string', default: DEFAULT_FONT},\n    // `fontImage` defaults to the font name as a .png (e.g., mozillavr.fnt -> mozillavr.png).\n    fontImage: {type: 'string'},\n    // `height` has no default, will be populated at layout.\n    height: {type: 'number'},\n    letterSpacing: {type: 'number', default: 0},\n    // `lineHeight` defaults to font's `lineHeight` value.\n    lineHeight: {type: 'number'},\n    opacity: {type: 'number', default: 1.0},\n    shader: {default: 'sdf', oneOf: shaders},\n    side: {default: 'front', oneOf: ['front', 'back', 'double']},\n    tabSize: {default: 4},\n    transparent: {default: true},\n    value: {type: 'string'},\n    whiteSpace: {default: 'normal', oneOf: ['normal', 'pre', 'nowrap']},\n    // `width` defaults to geometry width if present, else `DEFAULT_WIDTH`.\n    width: {type: 'number'},\n    // `wrapCount` units are about one default font character. Wrap roughly at this number.\n    wrapCount: {type: 'number', default: 40},\n    // `wrapPixels` will wrap using bmfont pixel units (e.g., dejavu's is 32 pixels).\n    wrapPixels: {type: 'number'},\n    // `xOffset` to add padding.\n    xOffset: {type: 'number', default: 0},\n    // `yOffset` to adjust generated fonts from tools that may have incorrect metrics.\n    yOffset: {type: 'number', default: 0},\n    // `zOffset` will provide a small z offset to avoid z-fighting.\n    zOffset: {type: 'number', default: 0.001}\n  },\n\n  init: function () {\n    this.geometry = createTextGeometry();\n    this.createOrUpdateMaterial();\n    this.mesh = new THREE.Mesh(this.geometry, this.material);\n    this.el.setObject3D(this.attrName, this.mesh);\n  },\n\n  update: function (oldData) {\n    var data = coerceData(this.data);\n    var font = this.currentFont;\n    var fontImage = this.getFontImageSrc();\n\n    if (textures[fontImage]) {\n      this.texture = textures[fontImage];\n    } else {\n      // Create texture per font.\n      this.texture = textures[fontImage] = new THREE.Texture();\n      this.texture.anisotropy = MAX_ANISOTROPY;\n    }\n\n    // Update material.\n    this.createOrUpdateMaterial();\n\n    // New font. `updateFont` will later change data and layout.\n    if (oldData.font !== data.font) {\n      this.updateFont();\n      return;\n    }\n\n    // Update geometry and layout.\n    if (font) {\n      this.updateGeometry(this.geometry, data, font);\n      this.updateLayout(data);\n    }\n  },\n\n  /**\n   * Clean up geometry, material, texture, mesh, objects.\n   */\n  remove: function () {\n    this.geometry.dispose();\n    this.geometry = null;\n    this.el.removeObject3D(this.attrName);\n    this.material.dispose();\n    this.material = null;\n    this.texture.dispose();\n    this.texture = null;\n    if (this.shaderObject) {\n      delete this.shaderObject;\n    }\n  },\n\n  /**\n   * Update the shader of the material.\n   */\n  createOrUpdateMaterial: function () {\n    var data = this.data;\n    var hasChangedShader;\n    var material = this.material;\n    var NewShader;\n    var shaderData;\n    var shaderName;\n\n    // Infer shader if using a stock font (or from `-msdf` filename convention).\n    shaderName = data.shader;\n    if (MSDF_FONTS.indexOf(data.font) !== -1 || data.font.indexOf('-msdf.') >= 0) {\n      shaderName = 'msdf';\n    } else if (data.font in FONTS && MSDF_FONTS.indexOf(data.font) === -1) {\n      shaderName = 'sdf';\n    }\n\n    hasChangedShader = (this.shaderObject && this.shaderObject.name) !== shaderName;\n    shaderData = {\n      alphaTest: data.alphaTest,\n      color: data.color,\n      map: this.texture,\n      opacity: data.opacity,\n      side: parseSide(data.side),\n      transparent: data.transparent\n    };\n\n    // Shader has not changed, do an update.\n    if (!hasChangedShader) {\n      // Update shader material.\n      this.shaderObject.update(shaderData);\n      // Apparently, was not set on `init` nor `update`.\n      material.transparent = shaderData.transparent;\n      updateBaseMaterial(material, shaderData);\n      return;\n    }\n\n    // Shader has changed. Create a shader material.\n    NewShader = createShader(this.el, shaderName, shaderData);\n    this.material = NewShader.material;\n    this.shaderObject = NewShader.shader;\n\n    // Set new shader material.\n    updateBaseMaterial(this.material, shaderData);\n    if (this.mesh) { this.mesh.material = this.material; }\n  },\n\n  /**\n   * Load font for geometry, load font image for material, and apply.\n   */\n  updateFont: function () {\n    var data = this.data;\n    var el = this.el;\n    var fontSrc;\n    var geometry = this.geometry;\n    var self = this;\n\n    if (!data.font) { warn('No font specified. Using the default font.'); }\n\n    // Make invisible during font swap.\n    this.mesh.visible = false;\n\n    // Look up font URL to use, and perform cached load.\n    fontSrc = this.lookupFont(data.font || DEFAULT_FONT) || data.font;\n    cache.get(fontSrc, function doLoadFont () {\n      return loadFont(fontSrc, data.yOffset);\n    }).then(function setFont (font) {\n      var coercedData;\n      var fontImgSrc;\n\n      if (font.pages.length !== 1) {\n        throw new Error('Currently only single-page bitmap fonts are supported.');\n      }\n\n      if (!fontWidthFactors[fontSrc]) {\n        font.widthFactor = fontWidthFactors[font] = computeFontWidthFactor(font);\n      }\n\n      // Update geometry given font metrics.\n      coercedData = coerceData(data);\n      self.updateGeometry(geometry, self.data, font);\n\n      // Set font and update layout.\n      self.currentFont = font;\n      self.updateLayout(coercedData);\n\n      // Look up font image URL to use, and perform cached load.\n      fontImgSrc = self.getFontImageSrc();\n      cache.get(fontImgSrc, function () {\n        return loadTexture(fontImgSrc);\n      }).then(function (image) {\n        // Make mesh visible and apply font image as texture.\n        var texture = self.texture;\n        texture.image = image;\n        texture.needsUpdate = true;\n        textures[fontImgSrc] = texture;\n        self.texture = texture;\n        self.mesh.visible = true;\n        el.emit('textfontset', {font: data.font, fontObj: font});\n      }).catch(function (err) {\n        error(err);\n        throw err;\n      });\n    }).catch(function (err) {\n      error(err);\n      throw err;\n    });\n  },\n\n  getFontImageSrc: function () {\n    var fontSrc = this.lookupFont(this.data.font || DEFAULT_FONT) || this.data.font;\n    return this.data.fontImage || fontSrc.replace(/(\\.fnt)|(\\.json)/, '.png');\n  },\n\n  /**\n   * Update layout with anchor, alignment, baseline, and considering any meshes.\n   */\n  updateLayout: function (data) {\n    var anchor;\n    var baseline;\n    var el = this.el;\n    var geometry = this.geometry;\n    var geometryComponent = el.getAttribute('geometry');\n    var height;\n    var layout = geometry.layout;\n    var mesh = this.mesh;\n    var textRenderWidth;\n    var textScale;\n    var width;\n    var x;\n    var y;\n\n    // Determine width to use (defined width, geometry's width, or default width).\n    geometryComponent = el.getAttribute('geometry');\n    width = data.width || (geometryComponent && geometryComponent.width) || DEFAULT_WIDTH;\n\n    // Determine wrap pixel count. Either specified or by experimental fudge factor.\n    // Note that experimental factor will never be correct for variable width fonts.\n    textRenderWidth = computeWidth(data.wrapPixels, data.wrapCount,\n                                   this.currentFont.widthFactor);\n    textScale = width / textRenderWidth;\n\n    // Determine height to use.\n    height = textScale * (layout.height + layout.descender);\n\n    // Update geometry dimensions to match text layout if width and height are set to 0.\n    // For example, scales a plane to fit text.\n    if (geometryComponent) {\n      if (!geometryComponent.width) { el.setAttribute('geometry', 'width', width); }\n      if (!geometryComponent.height) { el.setAttribute('geometry', 'height', height); }\n    }\n\n    // Calculate X position to anchor text left, center, or right.\n    anchor = data.anchor === 'align' ? data.align : data.anchor;\n    if (anchor === 'left') {\n      x = 0;\n    } else if (anchor === 'right') {\n      x = -1 * layout.width;\n    } else if (anchor === 'center') {\n      x = -1 * layout.width / 2;\n    } else {\n      throw new TypeError('Invalid text.anchor property value', anchor);\n    }\n\n    // Calculate Y position to anchor text top, center, or bottom.\n    baseline = data.baseline;\n    if (baseline === 'bottom') {\n      y = 0;\n    } else if (baseline === 'top') {\n      y = -1 * layout.height + layout.ascender;\n    } else if (baseline === 'center') {\n      y = -1 * layout.height / 2;\n    } else {\n      throw new TypeError('Invalid text.baseline property value', baseline);\n    }\n\n    // Position and scale mesh to apply layout.\n    mesh.position.x = x * textScale + data.xOffset;\n    mesh.position.y = y * textScale;\n    // Place text slightly in front to avoid Z-fighting.\n    mesh.position.z = data.zOffset;\n    mesh.scale.set(textScale, -1 * textScale, textScale);\n    this.geometry.computeBoundingSphere();\n  },\n\n  /**\n   * Grab font from the constant.\n   * Set as a method for test stubbing purposes.\n   */\n  lookupFont: function (key) {\n    return FONTS[key];\n  },\n\n  /**\n   * Update the text geometry using `three-bmfont-text.update`.\n   */\n  updateGeometry: function (geometry, data, font) {\n    geometry.update(utils.extend({}, data, {\n      font: font,\n      width: computeWidth(data.wrapPixels, data.wrapCount, font.widthFactor),\n      text: data.value.toString().replace(/\\\\n/g, '\\n').replace(/\\\\t/g, '\\t'),\n      lineHeight: data.lineHeight || font.common.lineHeight\n    }));\n  }\n});\n\nfunction parseSide (side) {\n  switch (side) {\n    case 'back': {\n      return THREE.BackSide;\n    }\n    case 'double': {\n      return THREE.DoubleSide;\n    }\n    default: {\n      return THREE.FrontSide;\n    }\n  }\n}\n\n/**\n * Coerce some data to numbers.\n * as they will be passed directly into text creation and update\n */\nfunction coerceData (data) {\n  data = utils.clone(data);\n  if (data.lineHeight !== undefined) {\n    data.lineHeight = parseFloat(data.lineHeight);\n    if (!isFinite(data.lineHeight)) { data.lineHeight = undefined; }\n  }\n  if (data.width !== undefined) {\n    data.width = parseFloat(data.width);\n    if (!isFinite(data.width)) { data.width = undefined; }\n  }\n  return data;\n}\n\n/**\n * @returns {Promise}\n */\nfunction loadFont (src, yOffset) {\n  return new Promise(function (resolve, reject) {\n    loadBMFont(src, function (err, font) {\n      if (err) {\n        error('Error loading font', src);\n        reject(err);\n        return;\n      }\n\n      // Fix negative Y offsets for Roboto MSDF font from tool. Experimentally determined.\n      if (src.indexOf('/Roboto-msdf.json') >= 0) { yOffset = 30; }\n      if (yOffset) { font.chars.map(function doOffset (ch) { ch.yoffset += yOffset; }); }\n\n      resolve(font);\n    });\n  });\n}\n\n/**\n * @returns {Promise}\n */\nfunction loadTexture (src) {\n  return new Promise(function (resolve, reject) {\n    new THREE.ImageLoader().load(src, function (image) {\n      resolve(image);\n    }, undefined, function () {\n      error('Error loading font image', src);\n      reject(null);\n    });\n  });\n}\n\nfunction createShader (el, shaderName, data) {\n  var shader;\n  var shaderObject;\n\n  // Set up Shader.\n  shaderObject = new shaders[shaderName].Shader();\n  shaderObject.el = el;\n  shaderObject.init(data);\n  shaderObject.update(data);\n\n  // Get material.\n  shader = shaderObject.material;\n  // Apparently, was not set on `init` nor `update`.\n  shader.transparent = data.transparent;\n\n  return {\n    material: shader,\n    shader: shaderObject\n  };\n}\n\n/**\n * @todo Add more supported material properties (e.g., `visible`).\n */\nfunction updateBaseMaterial (material, data) {\n  material.side = data.side;\n  material.depthTest = data.depthTest;\n  material.depthWrite = data.depthWrite;\n}\n\n/**\n * Determine wrap pixel count. Either specified or by experimental fudge factor.\n * Note that experimental factor will never be correct for variable width fonts.\n */\nfunction computeWidth (wrapPixels, wrapCount, widthFactor) {\n  return wrapPixels || ((0.5 + wrapCount) * widthFactor);\n}\n\n/**\n * Compute default font width factor to use.\n */\nfunction computeFontWidthFactor (font) {\n  var sum = 0;\n  var digitsum = 0;\n  var digits = 0;\n  font.chars.map(function (ch) {\n    sum += ch.xadvance;\n    if (ch.id >= 48 && ch.id <= 57) {\n      digits++;\n      digitsum += ch.xadvance;\n    }\n  });\n  return digits ? digitsum / digits : sum / font.chars.length;\n}\n\n/**\n * Get or create a promise given a key and promise generator.\n * @todo Move to a utility and use in other parts of A-Frame.\n */\nfunction PromiseCache () {\n  var cache = this.cache = {};\n\n  this.get = function (key, promiseGenerator) {\n    if (key in cache) {\n      return cache[key];\n    }\n    cache[key] = promiseGenerator();\n    return cache[key];\n  };\n}\n","var registerComponent = require('../core/component').registerComponent;\nvar controllerUtils = require('../utils/tracked-controls');\nvar THREE = require('../lib/three');\nvar DEFAULT_CAMERA_HEIGHT = require('../constants').DEFAULT_CAMERA_HEIGHT;\n\nvar DEFAULT_HANDEDNESS = require('../constants').DEFAULT_HANDEDNESS;\n// Vector from eyes to elbow (divided by user height).\nvar EYES_TO_ELBOW = {x: 0.175, y: -0.3, z: -0.03};\n// Vector from eyes to elbow (divided by user height).\nvar FOREARM = {x: 0, y: 0, z: -0.175};\n\n/**\n * Tracked controls component.\n * Wrap the gamepad API for pose and button states.\n * Select the appropriate controller and apply pose to the entity.\n * Observe button states and emit appropriate events.\n *\n * @property {number} controller - Index of controller in array returned by Gamepad API. Only used if hand property is not set.\n * @property {string} id - Selected controller among those returned by Gamepad API.\n * @property {number} hand - If multiple controllers found with id, choose the one with the given value for hand. If set, we ignore 'controller' property\n */\nmodule.exports.Component = registerComponent('tracked-controls', {\n  schema: {\n    controller: {default: 0},\n    id: {type: 'string', default: ''},\n    hand: {type: 'string', default: ''},\n    idPrefix: {type: 'string', default: ''},\n    rotationOffset: {default: 0},\n    // Arm model parameters when not 6DoF.\n    armModel: {default: true},\n    headElement: {type: 'selector'}\n  },\n\n  init: function () {\n    this.axis = [0, 0, 0];\n    this.buttonStates = {};\n    this.changedAxes = [];\n    this.targetControllerNumber = this.data.controller;\n\n    this.axisMoveEventDetail = {axis: this.axis, changed: this.changedAxes};\n\n    this.dolly = new THREE.Object3D();\n    this.controllerEuler = new THREE.Euler();\n    this.controllerEuler.order = 'YXZ';\n    this.controllerPosition = new THREE.Vector3();\n    this.controllerQuaternion = new THREE.Quaternion();\n    this.deltaControllerPosition = new THREE.Vector3();\n    this.position = new THREE.Vector3();\n    this.rotation = {};\n    this.standingMatrix = new THREE.Matrix4();\n\n    this.previousControllerPosition = new THREE.Vector3();\n    this.updateGamepad();\n  },\n\n  tick: function (time, delta) {\n    var mesh = this.el.getObject3D('mesh');\n    // Update mesh animations.\n    if (mesh && mesh.update) { mesh.update(delta / 1000); }\n    this.updateGamepad();\n    this.updatePose();\n    this.updateButtons();\n  },\n\n  /**\n   * Return default user height to use for non-6DOF arm model.\n   */\n  defaultUserHeight: function () {\n    return DEFAULT_CAMERA_HEIGHT;\n  },\n\n  /**\n   * Return head element to use for non-6DOF arm model.\n   */\n  getHeadElement: function () {\n    return this.data.headElement || this.el.sceneEl.camera.el;\n  },\n\n  /**\n   * Handle update controller match criteria (such as `id`, `idPrefix`, `hand`, `controller`)\n   */\n  updateGamepad: function () {\n    var data = this.data;\n    var controller = controllerUtils.findMatchingController(\n      this.system.controllers,\n      data.id,\n      data.idPrefix,\n      data.hand,\n      data.controller\n    );\n\n    this.controller = controller;\n  },\n\n  applyArmModel: function (controllerPosition) {\n    // Use controllerPosition and deltaControllerPosition to avoid creating variables.\n    var controller = this.controller;\n    var controllerEuler = this.controllerEuler;\n    var controllerQuaternion = this.controllerQuaternion;\n    var deltaControllerPosition = this.deltaControllerPosition;\n    var hand;\n    var headCamera;\n    var headEl;\n    var headObject3D;\n    var pose;\n    var userHeight;\n\n    headEl = this.getHeadElement();\n    headObject3D = headEl.object3D;\n    headCamera = headEl.components.camera;\n    userHeight = (headCamera ? headCamera.data.userHeight : 0) || this.defaultUserHeight();\n\n    pose = controller.pose;\n    hand = (controller ? controller.hand : undefined) || DEFAULT_HANDEDNESS;\n\n    // Use camera position as head position.\n    controllerPosition.copy(headObject3D.position);\n    // Set offset for degenerate \"arm model\" to elbow.\n    deltaControllerPosition.set(\n      EYES_TO_ELBOW.x * (hand === 'left' ? -1 : hand === 'right' ? 1 : 0),\n      EYES_TO_ELBOW.y,  // Lower than our eyes.\n      EYES_TO_ELBOW.z);  // Slightly out in front.\n    // Scale offset by user height.\n    deltaControllerPosition.multiplyScalar(userHeight);\n    // Apply camera Y rotation (not X or Z, so you can look down at your hand).\n    deltaControllerPosition.applyAxisAngle(headObject3D.up, headObject3D.rotation.y);\n    // Apply rotated offset to position.\n    controllerPosition.add(deltaControllerPosition);\n\n    // Set offset for degenerate \"arm model\" forearm. Forearm sticking out from elbow.\n    deltaControllerPosition.set(FOREARM.x, FOREARM.y, FOREARM.z);\n    // Scale offset by user height.\n    deltaControllerPosition.multiplyScalar(userHeight);\n    // Apply controller X/Y rotation (tilting up/down/left/right is usually moving the arm).\n    if (pose.orientation) {\n      controllerQuaternion.fromArray(pose.orientation);\n    } else {\n      controllerQuaternion.copy(headObject3D.quaternion);\n    }\n    controllerEuler.setFromQuaternion(controllerQuaternion);\n    controllerEuler.set(controllerEuler.x, controllerEuler.y, 0);\n    deltaControllerPosition.applyEuler(controllerEuler);\n    // Apply rotated offset to position.\n    controllerPosition.add(deltaControllerPosition);\n  },\n\n  /**\n   * Read pose from controller (from Gamepad API), apply transforms, apply to entity.\n   */\n  updatePose: function () {\n    var controller = this.controller;\n    var controllerEuler = this.controllerEuler;\n    var controllerPosition = this.controllerPosition;\n    var elPosition;\n    var previousControllerPosition = this.previousControllerPosition;\n    var dolly = this.dolly;\n    var el = this.el;\n    var pose;\n    var standingMatrix = this.standingMatrix;\n    var vrDisplay = this.system.vrDisplay;\n    var headEl = this.getHeadElement();\n    var headCamera = headEl.components.camera;\n    var userHeight = (headCamera ? headCamera.data.userHeight : 0) || this.defaultUserHeight();\n\n    if (!controller) { return; }\n\n    // Compose pose from Gamepad.\n    pose = controller.pose;\n    if (pose.orientation !== null) {\n      dolly.quaternion.fromArray(pose.orientation);\n    }\n\n    // controller position or arm model\n    if (pose.position !== null) {\n      dolly.position.fromArray(pose.position);\n    } else {\n      // Controller not 6DOF, apply arm model.\n      if (this.data.armModel) { this.applyArmModel(dolly.position); }\n    }\n\n    // Apply transforms, if 6DOF and in VR.\n    if (pose.position != null && vrDisplay) {\n      if (vrDisplay.stageParameters) {\n        standingMatrix.fromArray(vrDisplay.stageParameters.sittingToStandingTransform);\n        dolly.matrix.compose(dolly.position, dolly.quaternion, dolly.scale);\n        dolly.matrix.multiplyMatrices(standingMatrix, dolly.matrix);\n      } else {\n        // Apply default camera height\n        dolly.position.y += userHeight;\n        dolly.matrix.compose(dolly.position, dolly.quaternion, dolly.scale);\n      }\n    } else {\n      dolly.matrix.compose(dolly.position, dolly.quaternion, dolly.scale);\n    }\n\n    // Decompose.\n    controllerEuler.setFromRotationMatrix(dolly.matrix);\n    controllerPosition.setFromMatrixPosition(dolly.matrix);\n\n    // Apply rotation.\n    this.rotation.x = THREE.Math.radToDeg(controllerEuler.x);\n    this.rotation.y = THREE.Math.radToDeg(controllerEuler.y);\n    this.rotation.z = THREE.Math.radToDeg(controllerEuler.z) + this.data.rotationOffset;\n    el.setAttribute('rotation', this.rotation);\n\n    // Apply position.\n    elPosition = el.getAttribute('position');\n    this.position.copy(elPosition).sub(previousControllerPosition).add(controllerPosition);\n    el.setAttribute('position', this.position);\n    previousControllerPosition.copy(controllerPosition);\n  },\n\n  /**\n   * Handle button changes including axes, presses, touches, values.\n   */\n  updateButtons: function () {\n    var buttonState;\n    var controller = this.controller;\n    var id;\n\n    if (!controller) { return; }\n\n    // Check every button.\n    for (id = 0; id < controller.buttons.length; ++id) {\n      // Initialize button state.\n      if (!this.buttonStates[id]) {\n        this.buttonStates[id] = {pressed: false, touched: false, value: 0};\n      }\n\n      buttonState = controller.buttons[id];\n      this.handleButton(id, buttonState);\n    }\n    // Check axes.\n    this.handleAxes();\n  },\n\n  /**\n   * Handle presses and touches for a single button.\n   *\n   * @param {number} id - Index of button in Gamepad button array.\n   * @param {number} buttonState - Value of button state from 0 to 1.\n   * @returns {boolean} Whether button has changed in any way.\n   */\n  handleButton: function (id, buttonState) {\n    var changed = this.handlePress(id, buttonState) ||\n                  this.handleTouch(id, buttonState) ||\n                  this.handleValue(id, buttonState);\n    if (!changed) { return false; }\n    this.el.emit('buttonchanged', {id: id, state: buttonState});\n    return true;\n  },\n\n  /**\n   * An axis is an array of values from -1 (up, left) to 1 (down, right).\n   * Compare each component of the axis to the previous value to determine change.\n   *\n   * @returns {boolean} Whether axes changed.\n   */\n  handleAxes: function () {\n    var changed = false;\n    var controllerAxes = this.controller.axes;\n    var i;\n    var previousAxis = this.axis;\n    var changedAxes = this.changedAxes;\n\n    // Check if axis changed.\n    this.changedAxes.length = 0;\n    for (i = 0; i < controllerAxes.length; ++i) {\n      changedAxes.push(previousAxis[i] !== controllerAxes[i]);\n      if (changedAxes[i]) { changed = true; }\n    }\n    if (!changed) { return false; }\n\n    this.axis.length = 0;\n    for (i = 0; i < controllerAxes.length; i++) {\n      this.axis.push(controllerAxes[i]);\n    }\n    this.el.emit('axismove', this.axisMoveEventDetail);\n    return true;\n  },\n\n  /**\n   * Determine whether a button press has occured and emit events as appropriate.\n   *\n   * @param {string} id - ID of the button to check.\n   * @param {object} buttonState - State of the button to check.\n   * @returns {boolean} Whether button press state changed.\n   */\n  handlePress: function (id, buttonState) {\n    var evtName;\n    var previousButtonState = this.buttonStates[id];\n\n    // Not changed.\n    if (buttonState.pressed === previousButtonState.pressed) { return false; }\n\n    evtName = buttonState.pressed ? 'down' : 'up';\n    this.el.emit('button' + evtName, {id: id, state: buttonState});\n    previousButtonState.pressed = buttonState.pressed;\n    return true;\n  },\n\n  /**\n   * Determine whether a button touch has occured and emit events as appropriate.\n   *\n   * @param {string} id - ID of the button to check.\n   * @param {object} buttonState - State of the button to check.\n   * @returns {boolean} Whether button touch state changed.\n   */\n  handleTouch: function (id, buttonState) {\n    var evtName;\n    var previousButtonState = this.buttonStates[id];\n\n    // Not changed.\n    if (buttonState.touched === previousButtonState.touched) { return false; }\n\n    evtName = buttonState.touched ? 'start' : 'end';\n    // Due to unfortunate name collision, add empty touches array to avoid Daydream error.\n    this.el.emit('touch' + evtName, {id: id, state: buttonState}, true, {touches: []});\n    previousButtonState.touched = buttonState.touched;\n    return true;\n  },\n\n  /**\n   * Determine whether a button value has changed.\n   *\n   * @param {string} id - Id of the button to check.\n   * @param {object} buttonState - State of the button to check.\n   * @returns {boolean} Whether button value changed.\n   */\n  handleValue: function (id, buttonState) {\n    var previousButtonState = this.buttonStates[id];\n\n    // Not changed.\n    if (buttonState.value === previousButtonState.value) { return false; }\n\n    previousButtonState.value = buttonState.value;\n    return true;\n  }\n});\n","var registerComponent = require('../core/component').registerComponent;\n\n/**\n * Visibility component.\n */\nmodule.exports.Component = registerComponent('visible', {\n  schema: {default: true},\n\n  update: function () {\n    this.el.object3D.visible = this.data;\n  }\n});\n","var registerComponent = require('../core/component').registerComponent;\nvar utils = require('../utils/');\n\nvar bind = utils.bind;\nvar trackedControlsUtils = require('../utils/tracked-controls');\nvar checkControllerPresentAndSetup = trackedControlsUtils.checkControllerPresentAndSetup;\nvar emitIfAxesChanged = trackedControlsUtils.emitIfAxesChanged;\nvar onButtonEvent = trackedControlsUtils.onButtonEvent;\n\nvar VIVE_CONTROLLER_MODEL_OBJ_URL = 'https://cdn.aframe.io/controllers/vive/vr_controller_vive.obj';\nvar VIVE_CONTROLLER_MODEL_OBJ_MTL = 'https://cdn.aframe.io/controllers/vive/vr_controller_vive.mtl';\n\nvar GAMEPAD_ID_PREFIX = 'OpenVR ';\n\n/**\n * Vive controls.\n * Interface with Vive controllers and map Gamepad events to controller buttons:\n * trackpad, trigger, grip, menu, system\n * Load a controller model and highlight the pressed buttons.\n */\nmodule.exports.Component = registerComponent('vive-controls', {\n  schema: {\n    hand: {default: 'left'},\n    buttonColor: {type: 'color', default: '#FAFAFA'},  // Off-white.\n    buttonHighlightColor: {type: 'color', default: '#22D1EE'},  // Light blue.\n    model: {default: true},\n    rotationOffset: {default: 0}\n  },\n\n  /**\n   * Button IDs:\n   * 0 - trackpad\n   * 1 - trigger (intensity value from 0.5 to 1)\n   * 2 - grip\n   * 3 - menu (dispatch but better for menu options)\n   * 4 - system (never dispatched on this layer)\n   */\n  mapping: {\n    axes: {trackpad: [0, 1]},\n    buttons: ['trackpad', 'trigger', 'grip', 'menu', 'system']\n  },\n\n  init: function () {\n    var self = this;\n    this.animationActive = 'pointing';\n    this.checkControllerPresentAndSetup = checkControllerPresentAndSetup;  // To allow mock.\n    this.controllerPresent = false;\n    this.emitIfAxesChanged = emitIfAxesChanged;  // To allow mock.\n    this.lastControllerCheck = 0;\n    this.onButtonChanged = bind(this.onButtonChanged, this);\n    this.onButtonDown = function (evt) { onButtonEvent(evt.detail.id, 'down', self); };\n    this.onButtonUp = function (evt) { onButtonEvent(evt.detail.id, 'up', self); };\n    this.onButtonTouchEnd = function (evt) { onButtonEvent(evt.detail.id, 'touchend', self); };\n    this.onButtonTouchStart = function (evt) { onButtonEvent(evt.detail.id, 'touchstart', self); };\n    this.onAxisMoved = bind(this.onAxisMoved, this);\n    this.previousButtonValues = {};\n\n    this.bindMethods();\n  },\n\n  play: function () {\n    this.checkIfControllerPresent();\n    this.addControllersUpdateListener();\n  },\n\n  pause: function () {\n    this.removeEventListeners();\n    this.removeControllersUpdateListener();\n  },\n\n  bindMethods: function () {\n    this.onModelLoaded = bind(this.onModelLoaded, this);\n    this.onControllersUpdate = bind(this.onControllersUpdate, this);\n    this.checkIfControllerPresent = bind(this.checkIfControllerPresent, this);\n    this.removeControllersUpdateListener = bind(this.removeControllersUpdateListener, this);\n    this.onAxisMoved = bind(this.onAxisMoved, this);\n  },\n\n  addEventListeners: function () {\n    var el = this.el;\n    el.addEventListener('buttonchanged', this.onButtonChanged);\n    el.addEventListener('buttondown', this.onButtonDown);\n    el.addEventListener('buttonup', this.onButtonUp);\n    el.addEventListener('touchend', this.onButtonTouchEnd);\n    el.addEventListener('touchstart', this.onButtonTouchStart);\n    el.addEventListener('model-loaded', this.onModelLoaded);\n    el.addEventListener('axismove', this.onAxisMoved);\n    this.controllerEventsActive = true;\n  },\n\n  removeEventListeners: function () {\n    var el = this.el;\n    el.removeEventListener('buttonchanged', this.onButtonChanged);\n    el.removeEventListener('buttondown', this.onButtonDown);\n    el.removeEventListener('buttonup', this.onButtonUp);\n    el.removeEventListener('touchend', this.onButtonTouchEnd);\n    el.removeEventListener('touchstart', this.onButtonTouchStart);\n    el.removeEventListener('model-loaded', this.onModelLoaded);\n    el.removeEventListener('axismove', this.onAxisMoved);\n    this.controllerEventsActive = false;\n  },\n\n  /**\n   * Once OpenVR returns correct hand data in supporting browsers, we can use hand property.\n   * var isPresent = this.checkControllerPresentAndSetup(this.el.sceneEl, GAMEPAD_ID_PREFIX,\n                                                        { hand: data.hand });\n   * Until then, use hardcoded index.\n   */\n  checkIfControllerPresent: function () {\n    var data = this.data;\n    var controllerIndex = data.hand === 'right' ? 0 : data.hand === 'left' ? 1 : 2;\n    this.checkControllerPresentAndSetup(this, GAMEPAD_ID_PREFIX, {index: controllerIndex});\n  },\n\n  injectTrackedControls: function () {\n    var el = this.el;\n    var data = this.data;\n\n    // If we have an OpenVR Gamepad, use the fixed mapping.\n    el.setAttribute('tracked-controls', {\n      idPrefix: GAMEPAD_ID_PREFIX,\n      // Hand IDs: 0 = right, 1 = left, 2 = anything else.\n      controller: data.hand === 'right' ? 0 : data.hand === 'left' ? 1 : 2,\n      rotationOffset: data.rotationOffset\n    });\n\n    // Load model.\n    if (!this.data.model) { return; }\n    this.el.setAttribute('obj-model', {\n      obj: VIVE_CONTROLLER_MODEL_OBJ_URL,\n      mtl: VIVE_CONTROLLER_MODEL_OBJ_MTL\n    });\n  },\n\n  addControllersUpdateListener: function () {\n    this.el.sceneEl.addEventListener('controllersupdated', this.onControllersUpdate, false);\n  },\n\n  removeControllersUpdateListener: function () {\n    this.el.sceneEl.removeEventListener('controllersupdated', this.onControllersUpdate, false);\n  },\n\n  onControllersUpdate: function () {\n    this.checkIfControllerPresent();\n  },\n\n  /**\n   * Rotate the trigger button based on how hard the trigger is pressed.\n   */\n  onButtonChanged: function (evt) {\n    var button = this.mapping.buttons[evt.detail.id];\n    var buttonMeshes = this.buttonMeshes;\n    var analogValue;\n\n    if (!button) { return; }\n\n    if (button === 'trigger') {\n      analogValue = evt.detail.state.value;\n      // Update trigger rotation depending on button value.\n      if (buttonMeshes && buttonMeshes.trigger) {\n        buttonMeshes.trigger.rotation.x = -analogValue * (Math.PI / 12);\n      }\n    }\n\n    // Pass along changed event with button state, using button mapping for convenience.\n    this.el.emit(button + 'changed', evt.detail.state);\n  },\n\n  onModelLoaded: function (evt) {\n    var buttonMeshes;\n    var controllerObject3D = evt.detail.model;\n    var self = this;\n\n    if (!this.data.model) { return; }\n\n    // Store button meshes object to be able to change their colors.\n    buttonMeshes = this.buttonMeshes = {};\n    buttonMeshes.grip = {\n      left: controllerObject3D.getObjectByName('leftgrip'),\n      right: controllerObject3D.getObjectByName('rightgrip')\n    };\n    buttonMeshes.menu = controllerObject3D.getObjectByName('menubutton');\n    buttonMeshes.system = controllerObject3D.getObjectByName('systembutton');\n    buttonMeshes.trackpad = controllerObject3D.getObjectByName('touchpad');\n    buttonMeshes.trigger = controllerObject3D.getObjectByName('trigger');\n\n    // Set default colors.\n    Object.keys(buttonMeshes).forEach(function (buttonName) {\n      self.setButtonColor(buttonName, self.data.buttonColor);\n    });\n\n    // Offset pivot point.\n    controllerObject3D.position.set(0, -0.015, 0.04);\n  },\n\n  onAxisMoved: function (evt) {\n    this.emitIfAxesChanged(this, this.mapping.axes, evt);\n  },\n\n  updateModel: function (buttonName, evtName) {\n    var color;\n    var isTouch;\n    if (!this.data.model) { return; }\n\n    isTouch = evtName.indexOf('touch') !== -1;\n    // Don't change color for trackpad touch.\n    if (isTouch) { return; }\n\n    // Update colors.\n    color = evtName === 'up' ? this.data.buttonColor : this.data.buttonHighlightColor;\n    this.setButtonColor(buttonName, color);\n  },\n\n  setButtonColor: function (buttonName, color) {\n    var buttonMeshes = this.buttonMeshes;\n\n    if (!buttonMeshes) { return; }\n\n    // Need to do both left and right sides for grip.\n    if (buttonName === 'grip') {\n      buttonMeshes.grip.left.material.color.set(color);\n      buttonMeshes.grip.right.material.color.set(color);\n      return;\n    }\n    buttonMeshes[buttonName].material.color.set(color);\n  }\n});\n","var KEYCODE_TO_CODE = require('../constants').keyboardevent.KEYCODE_TO_CODE;\nvar registerComponent = require('../core/component').registerComponent;\nvar THREE = require('../lib/three');\nvar utils = require('../utils/');\n\nvar bind = utils.bind;\nvar shouldCaptureKeyEvent = utils.shouldCaptureKeyEvent;\n\nvar CLAMP_VELOCITY = 0.00001;\nvar MAX_DELTA = 0.2;\nvar KEYS = [\n  'KeyW', 'KeyA', 'KeyS', 'KeyD',\n  'ArrowUp', 'ArrowLeft', 'ArrowRight', 'ArrowDown'\n];\n\n/**\n * WASD component to control entities using WASD keys.\n */\nmodule.exports.Component = registerComponent('wasd-controls', {\n  schema: {\n    acceleration: {default: 65},\n    adAxis: {default: 'x', oneOf: ['x', 'y', 'z']},\n    adEnabled: {default: true},\n    adInverted: {default: false},\n    easing: {default: 20},\n    enabled: {default: true},\n    fly: {default: false},\n    wsAxis: {default: 'z', oneOf: ['x', 'y', 'z']},\n    wsEnabled: {default: true},\n    wsInverted: {default: false}\n  },\n\n  init: function () {\n    // To keep track of the pressed keys.\n    this.keys = {};\n\n    this.position = {};\n    this.velocity = new THREE.Vector3();\n\n    // Bind methods and add event listeners.\n    this.onBlur = bind(this.onBlur, this);\n    this.onFocus = bind(this.onFocus, this);\n    this.onKeyDown = bind(this.onKeyDown, this);\n    this.onKeyUp = bind(this.onKeyUp, this);\n    this.onVisibilityChange = bind(this.onVisibilityChange, this);\n    this.attachVisibilityEventListeners();\n  },\n\n  tick: function (time, delta) {\n    var currentPosition;\n    var data = this.data;\n    var el = this.el;\n    var movementVector;\n    var position = this.position;\n    var velocity = this.velocity;\n\n    if (!velocity[data.adAxis] && !velocity[data.wsAxis] &&\n        isEmptyObject(this.keys)) { return; }\n\n    // Update velocity.\n    delta = delta / 1000;\n    this.updateVelocity(delta);\n\n    if (!velocity[data.adAxis] && !velocity[data.wsAxis]) { return; }\n\n    // Get movement vector and translate position.\n    currentPosition = el.getAttribute('position');\n    movementVector = this.getMovementVector(delta);\n    position.x = currentPosition.x + movementVector.x;\n    position.y = currentPosition.y + movementVector.y;\n    position.z = currentPosition.z + movementVector.z;\n    el.setAttribute('position', position);\n  },\n\n  remove: function () {\n    this.removeKeyEventListeners();\n    this.removeVisibilityEventListeners();\n  },\n\n  play: function () {\n    this.attachKeyEventListeners();\n  },\n\n  pause: function () {\n    this.keys = {};\n    this.removeKeyEventListeners();\n  },\n\n  updateVelocity: function (delta) {\n    var acceleration;\n    var adAxis;\n    var adSign;\n    var data = this.data;\n    var keys = this.keys;\n    var velocity = this.velocity;\n    var wsAxis;\n    var wsSign;\n\n    adAxis = data.adAxis;\n    wsAxis = data.wsAxis;\n\n    // If FPS too low, reset velocity.\n    if (delta > MAX_DELTA) {\n      velocity[adAxis] = 0;\n      velocity[wsAxis] = 0;\n      return;\n    }\n\n    // Decay velocity.\n    if (velocity[adAxis] !== 0) {\n      velocity[adAxis] -= velocity[adAxis] * data.easing * delta;\n    }\n    if (velocity[wsAxis] !== 0) {\n      velocity[wsAxis] -= velocity[wsAxis] * data.easing * delta;\n    }\n\n    // Clamp velocity easing.\n    if (Math.abs(velocity[adAxis]) < CLAMP_VELOCITY) { velocity[adAxis] = 0; }\n    if (Math.abs(velocity[wsAxis]) < CLAMP_VELOCITY) { velocity[wsAxis] = 0; }\n\n    if (!data.enabled) { return; }\n\n    // Update velocity using keys pressed.\n    acceleration = data.acceleration;\n    if (data.adEnabled) {\n      adSign = data.adInverted ? -1 : 1;\n      if (keys.KeyA || keys.ArrowLeft) { velocity[adAxis] -= adSign * acceleration * delta; }\n      if (keys.KeyD || keys.ArrowRight) { velocity[adAxis] += adSign * acceleration * delta; }\n    }\n    if (data.wsEnabled) {\n      wsSign = data.wsInverted ? -1 : 1;\n      if (keys.KeyW || keys.ArrowUp) { velocity[wsAxis] -= wsSign * acceleration * delta; }\n      if (keys.KeyS || keys.ArrowDown) { velocity[wsAxis] += wsSign * acceleration * delta; }\n    }\n  },\n\n  getMovementVector: (function () {\n    var directionVector = new THREE.Vector3(0, 0, 0);\n    var rotationEuler = new THREE.Euler(0, 0, 0, 'YXZ');\n\n    return function (delta) {\n      var rotation = this.el.getAttribute('rotation');\n      var velocity = this.velocity;\n      var xRotation;\n\n      directionVector.copy(velocity);\n      directionVector.multiplyScalar(delta);\n\n      // Absolute.\n      if (!rotation) { return directionVector; }\n\n      xRotation = this.data.fly ? rotation.x : 0;\n\n      // Transform direction relative to heading.\n      rotationEuler.set(THREE.Math.degToRad(xRotation), THREE.Math.degToRad(rotation.y), 0);\n      directionVector.applyEuler(rotationEuler);\n      return directionVector;\n    };\n  })(),\n\n  attachVisibilityEventListeners: function () {\n    window.addEventListener('blur', this.onBlur);\n    window.addEventListener('focus', this.onFocus);\n    document.addEventListener('visibilitychange', this.onVisibilityChange);\n  },\n\n  removeVisibilityEventListeners: function () {\n    window.removeEventListener('blur', this.onBlur);\n    window.removeEventListener('focus', this.onFocus);\n    document.removeEventListener('visibilitychange', this.onVisibilityChange);\n  },\n\n  attachKeyEventListeners: function () {\n    window.addEventListener('keydown', this.onKeyDown);\n    window.addEventListener('keyup', this.onKeyUp);\n  },\n\n  removeKeyEventListeners: function () {\n    window.removeEventListener('keydown', this.onKeyDown);\n    window.removeEventListener('keyup', this.onKeyUp);\n  },\n\n  onBlur: function () {\n    this.pause();\n  },\n\n  onFocus: function () {\n    this.play();\n  },\n\n  onVisibilityChange: function () {\n    if (document.hidden) {\n      this.onBlur();\n    } else {\n      this.onFocus();\n    }\n  },\n\n  onKeyDown: function (event) {\n    var code;\n    if (!shouldCaptureKeyEvent(event)) { return; }\n    code = event.code || KEYCODE_TO_CODE[event.keyCode];\n    if (KEYS.indexOf(code) !== -1) { this.keys[code] = true; }\n  },\n\n  onKeyUp: function (event) {\n    var code;\n    code = event.code || KEYCODE_TO_CODE[event.keyCode];\n    delete this.keys[code];\n  }\n});\n\nfunction isEmptyObject (keys) {\n  var key;\n  for (key in keys) { return false; }\n  return true;\n}\n","/* global THREE */\nvar bind = require('../utils/bind');\nvar registerComponent = require('../core/component').registerComponent;\nvar trackedControlsUtils = require('../utils/tracked-controls');\nvar onButtonEvent = trackedControlsUtils.onButtonEvent;\nvar utils = require('../utils/');\n\nvar debug = utils.debug('components:windows-motion-controls:debug');\nvar warn = utils.debug('components:windows-motion-controls:warn');\n\nvar DEFAULT_HANDEDNESS = require('../constants').DEFAULT_HANDEDNESS;\n\nvar MODEL_BASE_URL = 'https://cdn.aframe.io/controllers/microsoft/';\nvar MODEL_FILENAMES = { left: 'left.glb', right: 'right.glb', default: 'universal.glb' };\n\nvar GAMEPAD_ID_PREFIX = 'Spatial Controller (Spatial Interaction Source) ';\nvar GAMEPAD_ID_PATTERN = /([0-9a-zA-Z]+-[0-9a-zA-Z]+)$/;\n\n/**\n * Windows Motion Controller controls.\n * Interface with Windows Motion Controller controllers and map Gamepad events to\n * controller buttons: trackpad, trigger, grip, menu, thumbstick\n * Load a controller model and transform the pressed buttons.\n */\nmodule.exports.Component = registerComponent('windows-motion-controls', {\n  schema: {\n    hand: {default: DEFAULT_HANDEDNESS},\n    // It is possible to have multiple pairs of controllers attached (a pair has both left and right).\n    // Set this to 1 to use a controller from the second pair, 2 from the third pair, etc.\n    pair: {default: 0},\n    // If true, loads the controller glTF asset.\n    model: {default: true},\n    // If true, will hide the model from the scene if no matching gamepad (based on ID & hand) is connected.\n    hideDisconnected: {default: true}\n  },\n\n  mapping: {\n    // A-Frame specific semantic axis names\n    axes: {'thumbstick': [0, 1], 'trackpad': [2, 3]},\n    // A-Frame specific semantic button names\n    buttons: ['thumbstick', 'trigger', 'grip', 'menu', 'trackpad'],\n    // A mapping of the semantic name to node name in the glTF model file,\n    // that should be transformed by axis value.\n    // This array mirrors the browser Gamepad.axes array, such that\n    // the mesh corresponding to axis 0 is in this array index 0.\n    axisMeshNames: [\n      'THUMBSTICK_X',\n      'THUMBSTICK_Y',\n      'TOUCHPAD_TOUCH_X',\n      'TOUCHPAD_TOUCH_Y'\n    ],\n    // A mapping of the semantic name to button node name in the glTF model file,\n    // that should be transformed by button value.\n    buttonMeshNames: {\n      'trigger': 'SELECT',\n      'menu': 'MENU',\n      'grip': 'GRASP',\n      'thumbstick': 'THUMBSTICK_PRESS',\n      'trackpad': 'TOUCHPAD_PRESS'\n    },\n    pointingPoseMeshName: 'POINTING_POSE'\n  },\n\n  bindMethods: function () {\n    this.onModelError = bind(this.onModelError, this);\n    this.onModelLoaded = bind(this.onModelLoaded, this);\n    this.onControllersUpdate = bind(this.onControllersUpdate, this);\n    this.checkIfControllerPresent = bind(this.checkIfControllerPresent, this);\n    this.onAxisMoved = bind(this.onAxisMoved, this);\n  },\n\n  init: function () {\n    var self = this;\n    var el = this.el;\n    this.onButtonChanged = bind(this.onButtonChanged, this);\n    this.onButtonDown = function (evt) { onButtonEvent(evt, 'down', self); };\n    this.onButtonUp = function (evt) { onButtonEvent(evt, 'up', self); };\n    this.onButtonTouchStart = function (evt) { onButtonEvent(evt, 'touchstart', self); };\n    this.onButtonTouchEnd = function (evt) { onButtonEvent(evt, 'touchend', self); };\n    this.onControllerConnected = function () { self.setModelVisibility(true); };\n    this.onControllerDisconnected = function () { self.setModelVisibility(false); };\n    this.controllerPresent = false;\n    this.lastControllerCheck = 0;\n    this.previousButtonValues = {};\n    this.bindMethods();\n\n    // Cache for submeshes that we have looked up by name.\n    this.loadedMeshInfo = {\n      buttonMeshes: null,\n      axisMeshes: null\n    };\n\n    // Pointing poses\n    this.rayOrigin = {\n      origin: new THREE.Vector3(),\n      direction: new THREE.Vector3(0, 0, -1),\n      createdFromMesh: false\n    };\n\n    // Stored on object to allow for mocking in tests\n    this.emitIfAxesChanged = trackedControlsUtils.emitIfAxesChanged;\n    this.checkControllerPresentAndSetup = trackedControlsUtils.checkControllerPresentAndSetup;\n\n    el.addEventListener('controllerconnected', this.onControllerConnected);\n    el.addEventListener('controllerdisconnected', this.onControllerDisconnected);\n  },\n\n  addEventListeners: function () {\n    var el = this.el;\n    el.addEventListener('buttonchanged', this.onButtonChanged);\n    el.addEventListener('buttondown', this.onButtonDown);\n    el.addEventListener('buttonup', this.onButtonUp);\n    el.addEventListener('touchstart', this.onButtonTouchStart);\n    el.addEventListener('touchend', this.onButtonTouchEnd);\n    el.addEventListener('axismove', this.onAxisMoved);\n    el.addEventListener('model-error', this.onModelError);\n    el.addEventListener('model-loaded', this.onModelLoaded);\n    this.controllerEventsActive = true;\n  },\n\n  removeEventListeners: function () {\n    var el = this.el;\n    el.removeEventListener('buttonchanged', this.onButtonChanged);\n    el.removeEventListener('buttondown', this.onButtonDown);\n    el.removeEventListener('buttonup', this.onButtonUp);\n    el.removeEventListener('touchstart', this.onButtonTouchStart);\n    el.removeEventListener('touchend', this.onButtonTouchEnd);\n    el.removeEventListener('axismove', this.onAxisMoved);\n    el.removeEventListener('model-error', this.onModelError);\n    el.removeEventListener('model-loaded', this.onModelLoaded);\n    this.controllerEventsActive = false;\n  },\n\n  checkIfControllerPresent: function () {\n    this.checkControllerPresentAndSetup(this, GAMEPAD_ID_PREFIX, {\n      hand: this.data.hand,\n      index: this.data.pair\n    });\n  },\n\n  play: function () {\n    this.checkIfControllerPresent();\n    this.addControllersUpdateListener();\n  },\n\n  pause: function () {\n    this.removeEventListeners();\n    this.removeControllersUpdateListener();\n  },\n\n  updateControllerModel: function () {\n    // If we do not want to load a model, or, have already loaded the model, emit the controllermodelready event.\n    if (!this.data.model || this.rayOrigin.createdFromMesh) {\n      this.modelReady();\n      return;\n    }\n\n    var sourceUrl = this.createControllerModelUrl();\n    this.loadModel(sourceUrl);\n  },\n\n  /**\n   * Helper function that constructs a URL from the controller ID suffix, for future proofed\n   * art assets.\n   */\n  createControllerModelUrl: function (forceDefault) {\n    // Determine the device specific folder based on the ID suffix\n    var trackedControlsComponent = this.el.components['tracked-controls'];\n    var controller = trackedControlsComponent ? trackedControlsComponent.controller : null;\n    var device = 'default';\n    var hand = this.data.hand;\n    var filename;\n\n    if (controller) {\n      // Read hand directly from the controller, rather than this.data, as in the case that the controller\n      // is unhanded this.data will still have 'left' or 'right' (depending on what the user inserted in to the scene).\n      // In this case, we want to load the universal model, so need to get the '' from the controller.\n      hand = controller.hand;\n\n      if (!forceDefault) {\n        var match = controller.id.match(GAMEPAD_ID_PATTERN);\n        device = ((match && match[0]) || device);\n      }\n    }\n\n    // Hand\n    filename = MODEL_FILENAMES[hand] || MODEL_FILENAMES.default;\n\n    // Final url\n    return MODEL_BASE_URL + device + '/' + filename;\n  },\n\n  injectTrackedControls: function () {\n    var data = this.data;\n    this.el.setAttribute('tracked-controls', {\n      idPrefix: GAMEPAD_ID_PREFIX,\n      controller: data.pair,\n      hand: data.hand,\n      armModel: false\n    });\n\n    this.updateControllerModel();\n  },\n\n  addControllersUpdateListener: function () {\n    this.el.sceneEl.addEventListener('controllersupdated', this.onControllersUpdate, false);\n  },\n\n  removeControllersUpdateListener: function () {\n    this.el.sceneEl.removeEventListener('controllersupdated', this.onControllersUpdate, false);\n  },\n\n  onControllersUpdate: function () {\n    this.checkIfControllerPresent();\n  },\n\n  onModelError: function (evt) {\n    var defaultUrl = this.createControllerModelUrl(true);\n    if (evt.detail.src !== defaultUrl) {\n      warn('Failed to load controller model for device, attempting to load default.');\n      this.loadModel(defaultUrl);\n    } else {\n      warn('Failed to load default controller model.');\n    }\n  },\n\n  loadModel: function (url) {\n    // The model is loaded by the gltf-model compoent when this attribute is initially set,\n    // removed and re-loaded if the given url changes.\n    this.el.setAttribute('gltf-model', 'url(' + url + ')');\n  },\n\n  onModelLoaded: function (evt) {\n    var rootNode = this.controllerModel = evt.detail.model;\n    var loadedMeshInfo = this.loadedMeshInfo;\n    var i;\n    var meshName;\n    var mesh;\n    var meshInfo;\n\n    debug('Processing model');\n\n    // Reset the caches\n    loadedMeshInfo.buttonMeshes = {};\n    loadedMeshInfo.axisMeshes = {};\n\n    // Cache our meshes so we aren't traversing the hierarchy per frame\n    if (rootNode) {\n      // Button Meshes\n      for (i = 0; i < this.mapping.buttons.length; i++) {\n        meshName = this.mapping.buttonMeshNames[this.mapping.buttons[i]];\n        if (!meshName) {\n          debug('Skipping unknown button at index: ' + i + ' with mapped name: ' + this.mapping.buttons[i]);\n          continue;\n        }\n\n        mesh = rootNode.getObjectByName(meshName);\n        if (!mesh) {\n          warn('Missing button mesh with name: ' + meshName);\n          continue;\n        }\n\n        meshInfo = {\n          index: i,\n          value: getImmediateChildByName(mesh, 'VALUE'),\n          pressed: getImmediateChildByName(mesh, 'PRESSED'),\n          unpressed: getImmediateChildByName(mesh, 'UNPRESSED')\n        };\n        if (meshInfo.value && meshInfo.pressed && meshInfo.unpressed) {\n          loadedMeshInfo.buttonMeshes[this.mapping.buttons[i]] = meshInfo;\n        } else {\n          // If we didn't find the mesh, it simply means this button won't have transforms applied as mapped button value changes.\n          warn('Missing button submesh under mesh with name: ' + meshName +\n            '(VALUE: ' + !!meshInfo.value +\n            ', PRESSED: ' + !!meshInfo.pressed +\n            ', UNPRESSED:' + !!meshInfo.unpressed +\n            ')');\n        }\n      }\n\n      // Axis Meshes\n      for (i = 0; i < this.mapping.axisMeshNames.length; i++) {\n        meshName = this.mapping.axisMeshNames[i];\n        if (!meshName) {\n          debug('Skipping unknown axis at index: ' + i);\n          continue;\n        }\n\n        mesh = rootNode.getObjectByName(meshName);\n        if (!mesh) {\n          warn('Missing axis mesh with name: ' + meshName);\n          continue;\n        }\n\n        meshInfo = {\n          index: i,\n          value: getImmediateChildByName(mesh, 'VALUE'),\n          min: getImmediateChildByName(mesh, 'MIN'),\n          max: getImmediateChildByName(mesh, 'MAX')\n        };\n        if (meshInfo.value && meshInfo.min && meshInfo.max) {\n          loadedMeshInfo.axisMeshes[i] = meshInfo;\n        } else {\n          // If we didn't find the mesh, it simply means this axis won't have transforms applied as mapped axis values change.\n          warn('Missing axis submesh under mesh with name: ' + meshName +\n            '(VALUE: ' + !!meshInfo.value +\n            ', MIN: ' + !!meshInfo.min +\n            ', MAX:' + !!meshInfo.max +\n            ')');\n        }\n      }\n\n      this.calculateRayOriginFromMesh(rootNode);\n      // Determine if the model has to be visible or not.\n      this.setModelVisibility();\n    }\n\n    debug('Model load complete.');\n\n    // Look through only immediate children. This will return null if no mesh exists with the given name.\n    function getImmediateChildByName (object3d, value) {\n      for (var i = 0, l = object3d.children.length; i < l; i++) {\n        var obj = object3d.children[i];\n        if (obj && obj['name'] === value) {\n          return obj;\n        }\n      }\n      return undefined;\n    }\n  },\n\n  calculateRayOriginFromMesh: (function () {\n    var quaternion = new THREE.Quaternion();\n    return function (rootNode) {\n      var mesh;\n\n      // Calculate the pointer pose (used for rays), by applying the world transform of th POINTER_POSE node\n      // in the glTF (assumes that root node is at world origin)\n      this.rayOrigin.origin.set(0, 0, 0);\n      this.rayOrigin.direction.set(0, 0, -1);\n      this.rayOrigin.createdFromMesh = true;\n\n      // Try to read Pointing pose from the source model\n      mesh = rootNode.getObjectByName(this.mapping.pointingPoseMeshName);\n      if (mesh) {\n        var parent = rootNode.parent;\n\n        // We need to read pose transforms accumulated from the root of the glTF, not the scene.\n        if (parent) {\n          rootNode.parent = null;\n          rootNode.updateMatrixWorld(true);\n          rootNode.parent = parent;\n        }\n\n        mesh.getWorldPosition(this.rayOrigin.origin);\n        mesh.getWorldQuaternion(quaternion);\n        this.rayOrigin.direction.applyQuaternion(quaternion);\n\n        // Recalculate the world matrices now that the rootNode is re-attached to the parent.\n        if (parent) {\n          rootNode.updateMatrixWorld(true);\n        }\n      } else {\n        debug('Mesh does not contain pointing origin data, defaulting to none.');\n      }\n\n      // Emit event stating that our pointing ray is now accurate.\n      this.modelReady();\n    };\n  })(),\n\n  lerpAxisTransform: (function () {\n    var quaternion = new THREE.Quaternion();\n    return function (axis, axisValue) {\n      var axisMeshInfo = this.loadedMeshInfo.axisMeshes[axis];\n      if (!axisMeshInfo) return;\n\n      var min = axisMeshInfo.min;\n      var max = axisMeshInfo.max;\n      var target = axisMeshInfo.value;\n\n      // Convert from gamepad value range (-1 to +1) to lerp range (0 to 1)\n      var lerpValue = axisValue * 0.5 + 0.5;\n      target.setRotationFromQuaternion(quaternion.copy(min.quaternion).slerp(max.quaternion, lerpValue));\n      target.position.lerpVectors(min.position, max.position, lerpValue);\n    };\n  })(),\n\n  lerpButtonTransform: (function () {\n    var quaternion = new THREE.Quaternion();\n    return function (buttonName, buttonValue) {\n      var buttonMeshInfo = this.loadedMeshInfo.buttonMeshes[buttonName];\n      if (!buttonMeshInfo) return;\n\n      var min = buttonMeshInfo.unpressed;\n      var max = buttonMeshInfo.pressed;\n      var target = buttonMeshInfo.value;\n\n      target.setRotationFromQuaternion(quaternion.copy(min.quaternion).slerp(max.quaternion, buttonValue));\n      target.position.lerpVectors(min.position, max.position, buttonValue);\n    };\n  })(),\n\n  modelReady: function () {\n    this.el.emit('controllermodelready', {\n      name: 'windows-motion-controls',\n      model: this.data.model,\n      rayOrigin: this.rayOrigin\n    });\n  },\n\n  onButtonChanged: function (evt) {\n    var buttonName = this.mapping.buttons[evt.detail.id];\n\n    if (buttonName) {\n      // Update the button mesh transform\n      if (this.loadedMeshInfo && this.loadedMeshInfo.buttonMeshes) {\n        this.lerpButtonTransform(buttonName, evt.detail.state.value);\n      }\n\n      // Only emit events for buttons that we know how to map from index to name\n      this.el.emit(buttonName + 'changed', evt.detail.state);\n    }\n  },\n\n  onAxisMoved: function (evt) {\n    var numAxes = this.mapping.axisMeshNames.length;\n\n    // Only attempt to update meshes if we have valid data.\n    if (this.loadedMeshInfo && this.loadedMeshInfo.axisMeshes) {\n      for (var axis = 0; axis < numAxes; axis++) {\n        // Update the button mesh transform\n        this.lerpAxisTransform(axis, evt.detail.axis[axis] || 0.0);\n      }\n    }\n\n    this.emitIfAxesChanged(this, this.mapping.axes, evt);\n  },\n\n  setModelVisibility: function (visible) {\n    var model = this.el.getObject3D('mesh');\n    visible = visible !== undefined ? visible : this.modelVisible;\n    this.modelVisible = visible;\n    if (!model) { return; }\n    model.visible = visible;\n  }\n});\n","/**\n * Animation configuration options for TWEEN.js animations.\n * Used by `<a-animation>`.\n */\nvar TWEEN = require('@tweenjs/tween.js');\n\nvar DIRECTIONS = {\n  alternate: 'alternate',\n  alternateReverse: 'alternate-reverse',\n  normal: 'normal',\n  reverse: 'reverse'\n};\n\nvar EASING_FUNCTIONS = {\n  'linear': TWEEN.Easing.Linear.None,\n\n  'ease': TWEEN.Easing.Cubic.InOut,\n  'ease-in': TWEEN.Easing.Cubic.In,\n  'ease-out': TWEEN.Easing.Cubic.Out,\n  'ease-in-out': TWEEN.Easing.Cubic.InOut,\n\n  'ease-cubic': TWEEN.Easing.Cubic.In,\n  'ease-in-cubic': TWEEN.Easing.Cubic.In,\n  'ease-out-cubic': TWEEN.Easing.Cubic.Out,\n  'ease-in-out-cubic': TWEEN.Easing.Cubic.InOut,\n\n  'ease-quad': TWEEN.Easing.Quadratic.InOut,\n  'ease-in-quad': TWEEN.Easing.Quadratic.In,\n  'ease-out-quad': TWEEN.Easing.Quadratic.Out,\n  'ease-in-out-quad': TWEEN.Easing.Quadratic.InOut,\n\n  'ease-quart': TWEEN.Easing.Quartic.InOut,\n  'ease-in-quart': TWEEN.Easing.Quartic.In,\n  'ease-out-quart': TWEEN.Easing.Quartic.Out,\n  'ease-in-out-quart': TWEEN.Easing.Quartic.InOut,\n\n  'ease-quint': TWEEN.Easing.Quintic.InOut,\n  'ease-in-quint': TWEEN.Easing.Quintic.In,\n  'ease-out-quint': TWEEN.Easing.Quintic.Out,\n  'ease-in-out-quint': TWEEN.Easing.Quintic.InOut,\n\n  'ease-sine': TWEEN.Easing.Sinusoidal.InOut,\n  'ease-in-sine': TWEEN.Easing.Sinusoidal.In,\n  'ease-out-sine': TWEEN.Easing.Sinusoidal.Out,\n  'ease-in-out-sine': TWEEN.Easing.Sinusoidal.InOut,\n\n  'ease-expo': TWEEN.Easing.Exponential.InOut,\n  'ease-in-expo': TWEEN.Easing.Exponential.In,\n  'ease-out-expo': TWEEN.Easing.Exponential.Out,\n  'ease-in-out-expo': TWEEN.Easing.Exponential.InOut,\n\n  'ease-circ': TWEEN.Easing.Circular.InOut,\n  'ease-in-circ': TWEEN.Easing.Circular.In,\n  'ease-out-circ': TWEEN.Easing.Circular.Out,\n  'ease-in-out-circ': TWEEN.Easing.Circular.InOut,\n\n  'ease-elastic': TWEEN.Easing.Elastic.InOut,\n  'ease-in-elastic': TWEEN.Easing.Elastic.In,\n  'ease-out-elastic': TWEEN.Easing.Elastic.Out,\n  'ease-in-out-elastic': TWEEN.Easing.Elastic.InOut,\n\n  'ease-back': TWEEN.Easing.Back.InOut,\n  'ease-in-back': TWEEN.Easing.Back.In,\n  'ease-out-back': TWEEN.Easing.Back.Out,\n  'ease-in-out-back': TWEEN.Easing.Back.InOut,\n\n  'ease-bounce': TWEEN.Easing.Bounce.InOut,\n  'ease-in-bounce': TWEEN.Easing.Bounce.In,\n  'ease-out-bounce': TWEEN.Easing.Bounce.Out,\n  'ease-in-out-bounce': TWEEN.Easing.Bounce.InOut\n};\n\nvar FILLS = {\n  backwards: 'backwards',\n  both: 'both',\n  forwards: 'forwards',\n  none: 'none'\n};\n\nvar REPEATS = {\n  indefinite: 'indefinite'\n};\n\nvar DEFAULTS = {\n  attribute: 'rotation',\n  begin: '',\n  end: '',\n  delay: 0,\n  dur: 1000,\n  easing: 'ease',\n  direction: DIRECTIONS.normal,\n  fill: FILLS.forwards,\n  from: undefined,\n  repeat: 0,\n  to: undefined\n};\n\nmodule.exports.defaults = DEFAULTS;\nmodule.exports.directions = DIRECTIONS;\nmodule.exports.easingFunctions = EASING_FUNCTIONS;\nmodule.exports.fills = FILLS;\nmodule.exports.repeats = REPEATS;\n","module.exports = {\n  AFRAME_INJECTED: 'aframe-injected',\n  DEFAULT_CAMERA_HEIGHT: 1.6,\n  DEFAULT_HANDEDNESS: 'right',\n  animation: require('./animation'),\n  keyboardevent: require('./keyboardevent')\n};\n","module.exports = {\n  // Tiny KeyboardEvent.code polyfill.\n  KEYCODE_TO_CODE: {\n    '38': 'ArrowUp',\n    '37': 'ArrowLeft',\n    '40': 'ArrowDown',\n    '39': 'ArrowRight',\n    '87': 'KeyW',\n    '65': 'KeyA',\n    '83': 'KeyS',\n    '68': 'KeyD'\n  }\n};\n","var ANode = require('./a-node');\nvar animationConstants = require('../constants/animation');\nvar coordinates = require('../utils/').coordinates;\nvar parseProperty = require('./schema').parseProperty;\nvar registerElement = require('./a-register-element').registerElement;\nvar TWEEN = require('@tweenjs/tween.js');\nvar THREE = require('../lib/three');\nvar utils = require('../utils/');\nvar bind = utils.bind;\n\nvar getComponentProperty = utils.entity.getComponentProperty;\nvar DEFAULTS = animationConstants.defaults;\nvar DIRECTIONS = animationConstants.directions;\nvar EASING_FUNCTIONS = animationConstants.easingFunctions;\nvar FILLS = animationConstants.fills;\nvar REPEATS = animationConstants.repeats;\nvar isCoordinates = coordinates.isCoordinates;\n\n/**\n * Animation element that applies Tween animation to parent element (entity).\n * Takes after the Web Animations spec.\n *\n * @member {number} count - Decrementing counter for how many cycles of animations left to\n *         run.\n * @member {Element} el - Entity which the animation is modifying.\n * @member initialValue - Value before animation started. Used to restore state.\n * @member {bool} isRunning - Whether animation is currently running.\n * @member {function} partialSetAttribute -\n *   setAttribute function that is agnostic to whether we are setting an attribute value\n *   or a component property value. The el and the attribute names are bundled with\n *   the function.\n * @member {object} tween - tween.js object.\n */\nmodule.exports.AAnimation = registerElement('a-animation', {\n  prototype: Object.create(ANode.prototype, {\n    createdCallback: {\n      value: function () {\n        this.bindMethods();\n        this.isRunning = false;\n        this.partialSetAttribute = function () { /* no-op */ };\n        this.tween = null;\n      }\n    },\n\n    attachedCallback: {\n      value: function () {\n        this.el = this.parentNode;\n        this.handleMixinUpdate();\n        this.update();\n        this.load();\n      }\n    },\n\n    attributeChangedCallback: {\n      value: function (attr, oldVal, newVal) {\n        if (!this.hasLoaded || !this.isRunning) { return; }\n        this.stop();\n        this.handleMixinUpdate();\n        this.update();\n      }\n    },\n\n    detachedCallback: {\n      value: function () {\n        if (!this.isRunning) { return; }\n        this.stop();\n      }\n    },\n\n    /**\n     * Builds a Tween object to handle animations.\n     * Uses tween.js's from, to, delay, easing, repeat, onUpdate, and onComplete.\n     * Note: tween.js takes objects for its `from` and `to` values.\n     *\n     * @returns {object}\n     */\n    getTween: {\n      value: function () {\n        var self = this;\n        var data = self.data;\n        var el = self.el;\n        var animationValues;\n        var attribute = data.attribute;\n        var delay = parseInt(data.delay, 10);\n        var currentValue = getComponentProperty(el, attribute);\n        var direction = self.getDirection(data.direction);\n        var easing = EASING_FUNCTIONS[data.easing];\n        var fill = data.fill;\n        var from;\n        var repeat = data.repeat === REPEATS.indefinite ? Infinity : 0;\n        var to;\n        var toTemp;\n        var yoyo = false;\n\n        animationValues = getAnimationValues(el, attribute, data.from || self.initialValue, data.to, currentValue);\n        from = animationValues.from;\n        to = animationValues.to;\n        self.partialSetAttribute = animationValues.partialSetAttribute;\n\n        if (self.count === undefined) {\n          self.count = repeat === Infinity ? 0 : parseInt(data.repeat, 10);\n        }\n\n        if (isNaN(delay)) { delay = 0; }\n\n        // Store initial state.\n        self.initialValue = self.initialValue || cloneValue(currentValue);\n\n        // Handle indefinite + forwards + alternate yoyo edge-case (#405).\n        if (repeat === Infinity && fill === FILLS.forwards &&\n            [DIRECTIONS.alternate,\n              DIRECTIONS.alternateReverse].indexOf(data.direction) !== -1) {\n          yoyo = true;\n        }\n\n        // If reversing, swap from and to.\n        if (direction === DIRECTIONS.reverse) {\n          toTemp = to;\n          to = cloneValue(from);\n          from = cloneValue(toTemp);\n        }\n\n        // If fill is backwards or both, start animation at the specified from.\n        if ([FILLS.backwards, FILLS.both].indexOf(fill) !== -1) {\n          self.partialSetAttribute(from);\n        }\n\n        // Create Tween.\n        return new TWEEN.Tween(cloneValue(from))\n          .to(to, data.dur)\n          .delay(delay)\n          .easing(easing)\n          .repeat(repeat)\n          .yoyo(yoyo)\n          .onUpdate(function () {\n            self.partialSetAttribute(this);\n          })\n          .onComplete(bind(self.onCompleted, self));\n      }\n    },\n\n    /**\n     * Animation parameters changed. Stop current animation, get a new one, and start it.\n     */\n    update: {\n      value: function () {\n        var data = this.data;\n        // Terminology warning if infinite used instead of indefinite\n        if (data.repeat === 'infinite') {\n          console.warn(\"Using 'infinite' as 'repeat' value is invalid.  Use 'indefinite' instead.\");\n        }\n        // Deprecation warning for begin when used as a delay.\n        if (data.begin !== '' && !isNaN(data.begin)) {\n          console.warn(\"Using 'begin' to specify a delay is deprecated. Use 'delay' instead.\");\n          data.delay = data.begin;\n          data.begin = '';\n        }\n        var begin = data.begin;\n        var end = data.end;\n        // Cancel previous event listeners\n        if (this.evt) { this.removeEventListeners(this.evt); }\n        // Store new event name.\n        this.evt = {begin: begin, end: end};\n        // Add new event listeners\n        this.addEventListeners(this.evt);\n        // If `begin` is not defined, start the animation right away.\n        if (begin === '') {\n          this.stop();\n          this.start();\n        }\n      },\n      writable: window.debug\n    },\n\n    /**\n     * Callback for when a cycle of an animation is complete. Handles when to completely\n     * finish the animation.\n     *\n     * If `repeat` is set to a value, this method is called after each repeat. Repeats are\n     * handled by ending the current animation and creating a new one with `count` updated.\n     * Note that this method is *not* called if repeat is set to `indefinite`.\n     */\n    onCompleted: {\n      value: function () {\n        var data = this.data;\n        this.isRunning = false;\n        if ([FILLS.backwards, FILLS.none].indexOf(data.fill) !== -1) {\n          this.partialSetAttribute(this.initialValue);\n        }\n        if (this.count === 0) {\n          this.count = undefined;\n          this.emit('animationend');\n          return;\n        }\n        this.isRunning = false;\n        this.count--;\n        this.start();\n      }\n    },\n\n    start: {\n      value: function () {\n        var self = this;\n        // Postpone animation start until the entity has loaded\n        if (!this.el.hasLoaded) {\n          this.el.addEventListener('loaded', function () { self.start(); });\n          return;\n        }\n        if (this.isRunning || !this.el.isPlaying) { return; }\n        this.tween = this.getTween();\n        this.isRunning = true;\n        this.tween.start();\n        this.emit('animationstart');\n      },\n      writable: true\n    },\n\n    stop: {\n      value: function () {\n        var tween = this.tween;\n        if (!tween) { return; }\n        tween.stop();\n        this.isRunning = false;\n        if ([FILLS.backwards, FILLS.none].indexOf(this.data.fill) !== -1) {\n          this.partialSetAttribute(this.initialValue);\n        }\n        this.emit('animationstop');\n      },\n      writable: true\n    },\n\n    /**\n     * Handle alternating directions. Given the current direction, calculate the next one,\n     * and store the current one.\n     *\n     * @param {string} direction\n     * @returns {string} Direction that the next individual cycle of the animation will go\n     *          towards.\n     */\n    getDirection: {\n      value: function (direction) {\n        if (direction === DIRECTIONS.alternate) {\n          this.prevDirection =\n            this.prevDirection === DIRECTIONS.normal ? DIRECTIONS.reverse : DIRECTIONS.normal;\n          return this.prevDirection;\n        }\n        if (direction === DIRECTIONS.alternateReverse) {\n          this.prevDirection =\n            this.prevDirection === DIRECTIONS.reverse ? DIRECTIONS.normal : DIRECTIONS.reverse;\n          return this.prevDirection;\n        }\n        return direction;\n      }\n    },\n\n    /**\n     * Preemptive binding to attach/detach event listeners (see `update`).\n     */\n    bindMethods: {\n      value: function () {\n        this.start = bind(this.start, this);\n        this.stop = bind(this.stop, this);\n        this.onStateAdded = bind(this.onStateAdded, this);\n        this.onStateRemoved = bind(this.onStateRemoved, this);\n      }\n    },\n\n    addEventListeners: {\n      value: function (evts) {\n        var el = this.el;\n        var self = this;\n        utils.splitString(evts.begin).forEach(function (evt) {\n          el.addEventListener(evt, self.start);\n        });\n        utils.splitString(evts.end).forEach(function (evt) {\n          el.addEventListener(evt, self.stop);\n        });\n        // If \"begin\" is an event name, wait. If it is not defined, start.\n        if (evts.begin === '') { el.addEventListener('play', this.start); }\n        el.addEventListener('pause', this.stop);\n        el.addEventListener('stateadded', this.onStateAdded);\n        el.addEventListener('stateremoved', this.onStateRemoved);\n      }\n    },\n\n    removeEventListeners: {\n      value: function (evts) {\n        var el = this.el;\n        var start = this.start;\n        var stop = this.stop;\n        utils.splitString(evts.begin).forEach(function (evt) {\n          el.removeEventListener(evt, start);\n        });\n        utils.splitString(evts.end).forEach(function (evt) {\n          el.removeEventListener(evt, stop);\n        });\n        el.removeEventListener('stateadded', this.onStateAdded);\n        el.removeEventListener('stateremoved', this.onStateRemoved);\n      }\n    },\n\n    onStateAdded: {\n      value: function (evt) {\n        if (evt.detail.state === this.data.begin) { this.start(); }\n      },\n      writable: true\n    },\n\n    onStateRemoved: {\n      value: function (evt) {\n        if (evt.detail.state === this.data.begin) { this.stop(); }\n      },\n      writable: true\n    },\n\n    /**\n     * Applies animation data from a mixin element.\n     * Works the same as component mixins but reimplemented because animations\n     * aren't components.\n     */\n    handleMixinUpdate: {\n      value: function () {\n        var data = {};\n        var elData;\n        var mixinData;\n        var mixinEl;\n\n        // Get mixin data.\n        mixinEl = document.querySelector('#' + this.getAttribute('mixin'));\n        mixinData = mixinEl ? utils.getElData(mixinEl, DEFAULTS) : {};\n\n        elData = utils.getElData(this, DEFAULTS);\n        utils.extend(data, DEFAULTS, mixinData, elData);\n        this.data = data;\n      }\n    }\n  })\n});\n\nfunction cloneValue (val) {\n  return utils.extend({}, val);\n}\n\n/**\n * Deduces different animation values based on whether we are:\n *   - animating an inner attribute of a component.\n *   - animating a coordinate component.\n *   - animating a boolean.\n *   - animating a number.\n *\n * @param {Element} el\n * @param {string} attribute - Tells what to animate based on whether it is dot-separated.\n * @param {string} dataFrom - Data `from` value.\n * @param {string} dataTo - Data `to` value.\n * @param currentValue\n * @returns {object}\n *   Object with keys [from, to, partialSetAttribute].\n *     `from` and `to`\n *        Objects where key is attribute being animated and value is value.\n *     `partialSetAttribute`\n *        Closured-function that tells tween how to update the component.\n */\nfunction getAnimationValues (el, attribute, dataFrom, dataTo, currentValue) {\n  var attributeSplit = attribute.split('.');\n  var schema;\n  var component;\n  var componentPropName;\n  var componentName;\n  var from = {};\n  var partialSetAttribute;\n  var to = {};\n  if (attributeSplit.length === 2) {\n    if (isColor()) {\n      getForColorComponent();\n    } else {\n      getForComponentAttribute();\n    }\n  } else if (dataTo && isCoordinates(dataTo)) {\n    getForCoordinateComponent();\n  } else if (['true', 'false'].indexOf(dataTo) !== -1) {\n    getForBoolean();\n  } else if (isNaN(dataTo)) {\n    getForColorComponent();\n  } else {\n    getForNumber();\n  }\n  return {\n    from: from,\n    partialSetAttribute: partialSetAttribute,\n    to: to\n  };\n\n  /**\n   * Match the schema type to color\n   * @return {bool} if the schema is of type color\n   */\n  function isColor () {\n    var componentName = attributeSplit[0];\n    var propertyName = attributeSplit[1];\n    var component = el.components[componentName];\n    var schema = component && component.schema;\n    return schema && schema[propertyName] && schema[propertyName].type === 'color';\n  }\n\n  /**\n   * Animating a component that has multiple attributes (e.g., geometry.width).\n   */\n  function getForComponentAttribute () {\n    componentName = attributeSplit[0];\n    componentPropName = attributeSplit[1];\n    component = el.components[componentName];\n    if (!component) {\n      el.setAttribute(componentName, '');\n      component = el.components[componentName];\n    }\n    schema = component.schema;\n    if (dataFrom === undefined) {  // dataFrom can be 0.\n      from[attribute] = getComponentProperty(el, attribute);\n    } else {\n      from[attribute] = dataFrom;\n    }\n    from[attribute] = parseProperty(from[attribute], schema[componentPropName]);\n    to[attribute] = parseProperty(dataTo, schema[componentPropName]);\n    partialSetAttribute = function (value) {\n      if (!(attribute in value)) { return; }\n      el.setAttribute(componentName, componentPropName, value[attribute]);\n    };\n  }\n\n  /**\n   * Animating a component that is an XYZ coordinate (e.g., position).\n   * Will be tweening {x, y, z} all at once.\n   */\n  function getForCoordinateComponent () {\n    from = dataFrom ? coordinates.parse(dataFrom) : currentValue;\n    to = coordinates.parse(dataTo);\n    partialSetAttribute = function (value) {\n      el.setAttribute(attribute, value);\n    };\n  }\n\n  /**\n   * Animation a boolean (e.g., visible).\n   * Have to convert from boolean to an integer (0 is false, > 0 is true) for tween.\n   */\n  function getForBoolean () {\n    if (dataFrom === undefined) {\n      from[attribute] = false;\n    } else {\n      from[attribute] = strToBool(dataFrom);\n    }\n    from[attribute] = boolToNum(from[attribute]);\n    to[attribute] = boolToNum(strToBool(dataTo));\n    partialSetAttribute = function (value) {\n      el.setAttribute(attribute, !!value[attribute]);\n    };\n  }\n\n  /**\n   * Animating a color component\n   *   Will convert a hex value to a THREE.Color\n   *   Then converts to hex for the setAttribute\n   */\n  function getForColorComponent () {\n    from = new THREE.Color(dataFrom || el.getAttribute(attribute));\n    to = new THREE.Color(dataTo);\n    partialSetAttribute = function (value) {\n      if (attributeSplit.length > 1) {\n        el.setAttribute(attributeSplit[0], attributeSplit[1], rgbVectorToHex(value));\n      }\n      el.setAttribute(attribute, rgbVectorToHex(value));\n    };\n  }\n\n  /**\n   * Animating a numbered attribute (e.g., opacity).\n   */\n  function getForNumber () {\n    if (dataFrom === undefined) {  // dataFrom can be 0.\n      from[attribute] = parseFloat(el.getAttribute(attribute));\n    } else {\n      from[attribute] = parseFloat(dataFrom);\n    }\n    to[attribute] = parseFloat(dataTo);\n    partialSetAttribute = function (value) {\n      el.setAttribute(attribute, value[attribute]);\n    };\n  }\n}\nmodule.exports.getAnimationValues = getAnimationValues;\n\n/**\n * Converts string to bool.\n *\n * @param {string} str - `true` or `false`.\n * @returns {bool}\n */\nfunction strToBool (str) {\n  if (str === 'true') { return true; }\n  return false;\n}\n\n/**\n * Converts boolean to number.\n *\n * @param {bool}\n * @returns {number}\n */\nfunction boolToNum (bool) {\n  return bool ? 1 : 0;\n}\n\n/**\n * Converts a number 0-255 to hex\n * @param {number} color number 0 - 255\n * @returns {string} hex value of number bassed\n */\nfunction componentToHex (color) {\n  var hex = color.toString(16);\n  return hex.length === 1 ? '0' + hex : hex;\n}\n\n/**\n * Clamps a number to 0-1\n * Then converts that number to 0-255\n * @param {number} color number 0 - 1\n * @returns {number} color number 0 - 255\n */\nfunction convertToIntegerColor (color) {\n  return Math.floor(Math.min(Math.abs(color), 1) * 255);\n}\n\n/**\n * Converts a rgb object into a hex string\n * @param {object} color { r: 1, g: 1, b: 1 }\n * @returns {string} hex value #ffffff\n */\nfunction rgbVectorToHex (color) {\n  return '#' + ['r', 'g', 'b'].map(function (prop) {\n    return componentToHex(convertToIntegerColor(color[prop]));\n  }).join('');\n}\n","var ANode = require('./a-node');\nvar bind = require('../utils/bind');\nvar debug = require('../utils/debug');\nvar registerElement = require('./a-register-element').registerElement;\nvar THREE = require('../lib/three');\n\nvar fileLoader = new THREE.FileLoader();\nvar warn = debug('core:a-assets:warn');\n\n/**\n * Asset management system. Handles blocking on asset loading.\n */\nmodule.exports = registerElement('a-assets', {\n  prototype: Object.create(ANode.prototype, {\n    createdCallback: {\n      value: function () {\n        this.isAssets = true;\n        this.fileLoader = fileLoader;\n        this.timeout = null;\n      }\n    },\n\n    attachedCallback: {\n      value: function () {\n        var self = this;\n        var i;\n        var loaded = [];\n        var mediaEl;\n        var mediaEls;\n        var imgEl;\n        var imgEls;\n        var timeout;\n\n        if (!this.parentNode.isScene) {\n          throw new Error('<a-assets> must be a child of a <a-scene>.');\n        }\n\n        // Wait for <img>s.\n        imgEls = this.querySelectorAll('img');\n        for (i = 0; i < imgEls.length; i++) {\n          imgEl = fixUpMediaElement(imgEls[i]);\n          loaded.push(new Promise(function (resolve, reject) {\n            // Set in cache because we won't be needing to call three.js loader if we have.\n            // a loaded media element.\n            THREE.Cache.files[imgEls[i].getAttribute('src')] = imgEl;\n            imgEl.onload = resolve;\n            imgEl.onerror = reject;\n          }));\n        }\n\n        // Wait for <audio>s and <video>s.\n        mediaEls = this.querySelectorAll('audio, video');\n        for (i = 0; i < mediaEls.length; i++) {\n          mediaEl = fixUpMediaElement(mediaEls[i]);\n          if (!mediaEl.src && !mediaEl.srcObject) {\n            warn('Audio/video asset has neither `src` nor `srcObject` attributes.');\n          }\n          loaded.push(mediaElementLoaded(mediaEl));\n        }\n\n        // Trigger loaded for scene to start rendering.\n        Promise.all(loaded).then(bind(this.load, this));\n\n        // Timeout to start loading anyways.\n        timeout = parseInt(this.getAttribute('timeout'), 10) || 3000;\n        this.timeout = setTimeout(function () {\n          if (self.hasLoaded) { return; }\n          warn('Asset loading timed out in ', timeout, 'ms');\n          self.emit('timeout');\n          self.load();\n        }, timeout);\n      }\n    },\n\n    detachedCallback: {\n      value: function () {\n        if (this.timeout) { clearTimeout(this.timeout); }\n      }\n    },\n\n    load: {\n      value: function () {\n        ANode.prototype.load.call(this, null, function waitOnFilter (el) {\n          return el.isAssetItem && el.hasAttribute('src');\n        });\n      }\n    }\n  })\n});\n\n/**\n * Preload using XHRLoader for any type of asset.\n */\nregisterElement('a-asset-item', {\n  prototype: Object.create(ANode.prototype, {\n    createdCallback: {\n      value: function () {\n        this.data = null;\n        this.isAssetItem = true;\n      }\n    },\n\n    attachedCallback: {\n      value: function () {\n        var self = this;\n        var src = this.getAttribute('src');\n        fileLoader.setResponseType(\n          this.getAttribute('response-type') || inferResponseType(src));\n        fileLoader.load(src, function handleOnLoad (response) {\n          self.data = response;\n          /*\n            Workaround for a Chrome bug. If another XHR is sent to the same url before the\n            previous one closes, the second request never finishes.\n            setTimeout finishes the first request and lets the logic triggered by load open\n            subsequent requests.\n            setTimeout can be removed once the fix for the bug below ships:\n            https://bugs.chromium.org/p/chromium/issues/detail?id=633696&q=component%3ABlink%3ENetwork%3EXHR%20&colspec=ID%20Pri%20M%20Stars%20ReleaseBlock%20Component%20Status%20Owner%20Summary%20OS%20Modified\n          */\n          setTimeout(function load () { ANode.prototype.load.call(self); });\n        }, function handleOnProgress (xhr) {\n          self.emit('progress', {\n            loadedBytes: xhr.loaded,\n            totalBytes: xhr.total,\n            xhr: xhr\n          });\n        }, function handleOnError (xhr) {\n          self.emit('error', {xhr: xhr});\n        });\n      }\n    }\n  })\n});\n\n/**\n * Create a Promise that resolves once the media element has finished buffering.\n *\n * @param {Element} el - HTMLMediaElement.\n * @returns {Promise}\n */\nfunction mediaElementLoaded (el) {\n  if (!el.hasAttribute('autoplay') && el.getAttribute('preload') !== 'auto') {\n    return;\n  }\n\n  // If media specifies autoplay or preload, wait until media is completely buffered.\n  return new Promise(function (resolve, reject) {\n    if (el.readyState === 4) { return resolve(); }  // Already loaded.\n    if (el.error) { return reject(); }  // Error.\n\n    el.addEventListener('loadeddata', checkProgress, false);\n    el.addEventListener('progress', checkProgress, false);\n    el.addEventListener('error', reject, false);\n\n    function checkProgress () {\n      // Add up the seconds buffered.\n      var secondsBuffered = 0;\n      for (var i = 0; i < el.buffered.length; i++) {\n        secondsBuffered += el.buffered.end(i) - el.buffered.start(i);\n      }\n\n      // Compare seconds buffered to media duration.\n      if (secondsBuffered >= el.duration) {\n        // Set in cache because we won't be needing to call three.js loader if we have.\n        // a loaded media element.\n        THREE.Cache.files[el.getAttribute('src')] = el;\n        resolve();\n      }\n    }\n  });\n}\n\n/**\n * Automatically add attributes to media elements where convenient.\n * crossorigin, playsinline.\n */\nfunction fixUpMediaElement (mediaEl) {\n  // Cross-origin.\n  var newMediaEl = setCrossOrigin(mediaEl);\n\n  // Plays inline for mobile.\n  if (newMediaEl.tagName && newMediaEl.tagName.toLowerCase() === 'video') {\n    newMediaEl.setAttribute('playsinline', '');\n    newMediaEl.setAttribute('webkit-playsinline', '');\n  }\n\n  if (newMediaEl !== mediaEl) {\n    mediaEl.parentNode.appendChild(newMediaEl);\n    mediaEl.parentNode.removeChild(mediaEl);\n  }\n  return newMediaEl;\n}\n\n/**\n * Automatically set `crossorigin` if not defined on the media element.\n * If it is not defined, we must create and re-append a new media element <img> and\n * have the browser re-request it with `crossorigin` set.\n *\n * @param {Element} Media element (e.g., <img>, <audio>, <video>).\n * @returns {Element} Media element to be used to listen to for loaded events.\n */\nfunction setCrossOrigin (mediaEl) {\n  var newMediaEl;\n  var src;\n\n  // Already has crossorigin set.\n  if (mediaEl.hasAttribute('crossorigin')) { return mediaEl; }\n\n  src = mediaEl.getAttribute('src');\n\n  if (src !== null) {\n    // Does not have protocol.\n    if (src.indexOf('://') === -1) { return mediaEl; }\n\n    // Determine if cross origin is actually needed.\n    if (extractDomain(src) === window.location.host) { return mediaEl; }\n  }\n\n  warn('Cross-origin element (e.g., <img>) was requested without `crossorigin` set. ' +\n       'A-Frame will re-request the asset with `crossorigin` attribute set. ' +\n       'Please set `crossorigin` on the element (e.g., <img crossorigin=\"anonymous\">)', src);\n  mediaEl.crossOrigin = 'anonymous';\n  newMediaEl = mediaEl.cloneNode(true);\n  return newMediaEl;\n}\n\n/**\n * Extract domain out of URL.\n *\n * @param {string} url\n * @returns {string}\n */\nfunction extractDomain (url) {\n  // Find and remove protocol (e.g., http, ftp, etc.) to get domain.\n  var domain = url.indexOf('://') > -1 ? url.split('/')[2] : url.split('/')[0];\n\n  // Find and remove port number.\n  return domain.split(':')[0];\n}\n\n/**\n * Infer response-type attribute from src.\n * Default is text(default XMLHttpRequest.responseType)\n * but we use arraybuffer for .gltf and .glb files\n * because of THREE.GLTFLoader specification.\n *\n * @param {string} src\n * @returns {string}\n */\nfunction inferResponseType (src) {\n  var dotLastIndex = src.lastIndexOf('.');\n  if (dotLastIndex >= 0) {\n    var extension = src.slice(dotLastIndex, src.length);\n    if (extension === '.gltf' || extension === '.glb') {\n      return 'arraybuffer';\n    }\n  }\n  return 'text';\n}\nmodule.exports.inferResponseType = inferResponseType;\n","var debug = require('../utils/debug');\nvar registerElement = require('./a-register-element').registerElement;\n\nvar warn = debug('core:cubemap:warn');\n\n/**\n * Cubemap element that handles validation and exposes list of URLs.\n * Does not listen to updates.\n */\nmodule.exports = registerElement('a-cubemap', {\n  prototype: Object.create(window.HTMLElement.prototype, {\n    /**\n     * Calculates this.srcs.\n     */\n    attachedCallback: {\n      value: function () {\n        this.srcs = this.validate();\n      },\n      writable: window.debug\n    },\n\n    /**\n     * Checks for exactly six elements with [src].\n     * Does not check explicitly for <img>s in case user does not want\n     * prefetching.\n     *\n     * @returns {Array|null} - six URLs if valid, else null.\n     */\n    validate: {\n      value: function () {\n        var elements = this.querySelectorAll('[src]');\n        var i;\n        var srcs = [];\n        if (elements.length === 6) {\n          for (i = 0; i < elements.length; i++) {\n            srcs.push(elements[i].getAttribute('src'));\n          }\n          return srcs;\n        }\n        // Else if there are not six elements, throw a warning.\n        warn(\n          '<a-cubemap> did not contain exactly six elements each with a ' +\n          '`src` attribute.');\n      },\n      writable: window.debug\n    }\n  })\n});\n","var ANode = require('./a-node');\nvar COMPONENTS = require('./component').components;\nvar registerElement = require('./a-register-element').registerElement;\nvar THREE = require('../lib/three');\nvar utils = require('../utils/');\n\nvar AEntity;\nvar debug = utils.debug('core:a-entity:debug');\nvar warn = utils.debug('core:a-entity:warn');\n\nvar MULTIPLE_COMPONENT_DELIMITER = '__';\n\n/**\n * Entity is a container object that components are plugged into to comprise everything in\n * the scene. In A-Frame, they inherently have position, rotation, and scale.\n *\n * To be able to take components, the scene element inherits from the entity definition.\n *\n * @member {object} components - entity's currently initialized components.\n * @member {object} object3D - three.js object.\n * @member {array} states\n * @member {boolean} isPlaying - false if dynamic behavior of the entity is paused.\n */\nvar proto = Object.create(ANode.prototype, {\n  defaultComponents: {\n    value: {\n      position: '',\n      rotation: '',\n      scale: '',\n      visible: ''\n    }\n  },\n\n  createdCallback: {\n    value: function () {\n      this.components = {};\n      // To avoid double initializations and infinite loops.\n      this.initializingComponents = {};\n      this.componentsToUpdate = {};\n      this.isEntity = true;\n      this.isPlaying = false;\n      this.object3D = new THREE.Group();\n      this.object3D.el = this;\n      this.object3DMap = {};\n      this.parentEl = null;\n      this.rotationObj = {};\n      this.states = [];\n    }\n  },\n\n  /**\n   * Handle changes coming from the browser DOM inspector.\n   */\n  attributeChangedCallback: {\n    value: function (attr, oldVal, newVal) {\n      var component = this.components[attr];\n      // If the empty string is passed by the component initialization\n      // logic we ignore the component update.\n      if (component && component.justInitialized && newVal === '') {\n        delete component.justInitialized;\n        return;\n      }\n      // When a component is removed after calling el.removeAttribute('material')\n      if (!component && newVal === null) { return; }\n      this.setEntityAttribute(attr, oldVal, newVal);\n    }\n  },\n\n  /**\n   * Add to parent, load, play.\n   */\n  attachedCallback: {\n    value: function () {\n      var assetsEl;  // Asset management system element.\n      var sceneEl = this.sceneEl;\n      var self = this;  // Component.\n\n      this.addToParent();\n\n      // Don't .load() scene on attachedCallback.\n      if (this.isScene) { return; }\n\n      // Gracefully not error when outside of <a-scene> (e.g., tests).\n      if (!sceneEl) {\n        this.load();\n        return;\n      }\n\n      // Wait for asset management system to finish before loading.\n      assetsEl = sceneEl.querySelector('a-assets');\n      if (assetsEl && !assetsEl.hasLoaded) {\n        assetsEl.addEventListener('loaded', function () { self.load(); });\n        return;\n      }\n      this.load();\n    }\n  },\n\n  /**\n   * Tell parent to remove this element's object3D from its object3D.\n   * Do not call on scene element because that will cause a call to document.body.remove().\n   */\n  detachedCallback: {\n    value: function () {\n      var componentName;\n\n      if (!this.parentEl) { return; }\n\n      // Remove components.\n      for (componentName in this.components) { this.removeComponent(componentName); }\n\n      if (this.isScene) { return; }\n\n      this.removeFromParent();\n      ANode.prototype.detachedCallback.call(this);\n\n      // Remove cyclic reference.\n      this.object3D.el = null;\n    }\n  },\n\n  /**\n   * Apply mixin to component.\n   */\n  handleMixinUpdate: {\n    value: function (attrName) {\n      if (!attrName) {\n        this.updateComponents();\n        return;\n      }\n      this.updateComponent(attrName, this.getDOMAttribute(attrName));\n    }\n  },\n\n  getObject3D: {\n    value: function (type) {\n      return this.object3DMap[type];\n    }\n  },\n\n  /**\n   * Set a THREE.Object3D into the map.\n   *\n   * @param {string} type - Developer-set name of the type of object, will be unique per type.\n   * @param {object} obj - A THREE.Object3D.\n   */\n  setObject3D: {\n    value: function (type, obj) {\n      var oldObj;\n      var self = this;\n\n      if (!(obj instanceof THREE.Object3D)) {\n        throw new Error(\n          '`Entity.setObject3D` was called with an object that was not an instance of ' +\n          'THREE.Object3D.'\n        );\n      }\n\n      // Remove existing object of the type.\n      oldObj = this.getObject3D(type);\n      if (oldObj) { this.object3D.remove(oldObj); }\n\n      // Set references to A-Frame entity.\n      obj.el = this;\n      if (obj.children.length) {\n        obj.traverse(function bindEl (child) {\n          child.el = self;\n        });\n      }\n\n      // Add.\n      this.object3D.add(obj);\n      this.object3DMap[type] = obj;\n      this.emit('object3dset', {object: obj, type: type});\n    }\n  },\n\n  /**\n   * Remove object from scene and entity object3D map.\n   */\n  removeObject3D: {\n    value: function (type) {\n      var obj = this.getObject3D(type);\n      if (!obj) {\n        warn('Tried to remove `Object3D` of type:', type, 'which was not defined.');\n        return;\n      }\n      this.object3D.remove(obj);\n      delete this.object3DMap[type];\n      this.emit('object3dremove', {type: type});\n    }\n  },\n\n  /**\n   * Gets or creates an object3D of a given type.\n   *\n   * @param {string} type - Type of the object3D.\n   * @param {string} Constructor - Constructor to use to create the object3D if needed.\n   * @returns {object}\n   */\n  getOrCreateObject3D: {\n    value: function (type, Constructor) {\n      var object3D = this.getObject3D(type);\n      if (!object3D && Constructor) {\n        object3D = new Constructor();\n        this.setObject3D(type, object3D);\n      }\n      warn('`getOrCreateObject3D` has been deprecated. Use `setObject3D()` ' +\n           'and `object3dset` event instead.');\n      return object3D;\n    }\n  },\n\n  /**\n   * Add child entity.\n   *\n   * @param {Element} el - Child entity.\n   */\n  add: {\n    value: function (el) {\n      if (!el.object3D) {\n        throw new Error(\"Trying to add an element that doesn't have an `object3D`\");\n      }\n      this.object3D.add(el.object3D);\n      this.emit('child-attached', {el: el});\n    }\n  },\n\n  /**\n   * Tell parentNode to add this entity to itself.\n   */\n  addToParent: {\n    value: function () {\n      var parentNode = this.parentEl = this.parentNode;\n\n      // `!parentNode` check primarily for unit tests.\n      if (!parentNode || !parentNode.add || this.attachedToParent) { return; }\n\n      parentNode.add(this);\n      this.attachedToParent = true;  // To prevent multiple attachments to same parent.\n    }\n  },\n\n  /**\n   * Tell parentNode to remove this entity from itself.\n   */\n  removeFromParent: {\n    value: function () {\n      var parentEl = this.parentEl;\n      this.parentEl.remove(this);\n      this.attachedToParent = false;\n      this.parentEl = this.parentNode = null;\n      parentEl.emit('child-detached', {el: this});\n    }\n  },\n\n  load: {\n    value: function () {\n      var self = this;\n\n      if (this.hasLoaded || !this.parentEl) { return; }\n\n      ANode.prototype.load.call(this, function entityLoadCallback () {\n        // Check if entity was detached while it was waiting to load.\n        if (!self.parentEl) { return; }\n\n        self.updateComponents();\n        if (self.isScene || self.parentEl.isPlaying) { self.play(); }\n      });\n    },\n    writable: window.debug\n  },\n\n  /**\n   * Remove child entity.\n   *\n   * @param {Element} el - Child entity.\n   */\n  remove: {\n    value: function (el) {\n      this.object3D.remove(el.object3D);\n    }\n  },\n\n  /**\n   * @returns {array} Direct children that are entities.\n   */\n  getChildEntities: {\n    value: function () {\n      var children = this.children;\n      var childEntities = [];\n\n      for (var i = 0; i < children.length; i++) {\n        var child = children[i];\n        if (child instanceof AEntity) {\n          childEntities.push(child);\n        }\n      }\n\n      return childEntities;\n    }\n  },\n\n  /**\n   * Initialize component.\n   *\n   * @param {string} attrName - Attribute name asociated to the component.\n   * @param {object} data - Component data\n   * @param {boolean} isDependency - True if the component is a dependency.\n   */\n  initComponent: {\n    value: function (attrName, data, isDependency) {\n      var component;\n      var componentInfo = attrName.split(MULTIPLE_COMPONENT_DELIMITER);\n      var componentId = componentInfo[1];\n      var componentName = componentInfo[0];\n      var isComponentDefined = checkComponentDefined(this, attrName) || data !== undefined;\n\n      // Not a registered component.\n      if (!COMPONENTS[componentName]) { return; }\n\n      // Component is not a dependency and is undefined.\n      // If a component is a dependency, then it is okay to have no data.\n      if (!isComponentDefined && !isDependency) { return; }\n\n      // Component already initialized.\n      if (attrName in this.components) { return; }\n\n      // Initialize dependencies first\n      this.initComponentDependencies(componentName);\n\n      // If component name has an id we check component type multiplic\n      if (componentId && !COMPONENTS[componentName].multiple) {\n        throw new Error('Trying to initialize multiple ' +\n                        'components of type `' + componentName +\n                        '`. There can only be one component of this type per entity.');\n      }\n      component = new COMPONENTS[componentName].Component(this, data, componentId);\n      if (this.isPlaying) { component.play(); }\n\n      // Components are reflected in the DOM as attributes but the state is not shown\n      // hence we set the attribute to empty string.\n      // The flag justInitialized is for attributeChangedCallback to not overwrite\n      // the component with the empty string.\n      if (!this.hasAttribute(attrName)) {\n        component.justInitialized = true;\n        window.HTMLElement.prototype.setAttribute.call(this, attrName, '');\n      }\n\n      debug('Component initialized: %s', attrName);\n    },\n    writable: window.debug\n  },\n\n  /**\n   * Initialize dependencies of a component.\n   *\n   * @param {string} name - Root component name.\n   */\n  initComponentDependencies: {\n    value: function (name) {\n      var self = this;\n      var component = COMPONENTS[name];\n      var dependencies;\n      var i;\n\n      // Not a component.\n      if (!component) { return; }\n\n      // No dependencies.\n      dependencies = COMPONENTS[name].dependencies;\n\n      if (!dependencies) { return; }\n\n      // Initialize dependencies.\n      for (i = 0; i < dependencies.length; i++) {\n        // Call getAttribute to initialize the data from the DOM.\n        self.initComponent(\n          dependencies[i],\n          window.HTMLElement.prototype.getAttribute.call(self, dependencies[i]) || undefined,\n          true\n        );\n      }\n    }\n  },\n\n  removeComponent: {\n    value: function (name) {\n      var component;\n      var isDefault;\n      var isMixedIn;\n\n      // Don't remove default or mixed-in components.\n      isDefault = name in this.defaultComponents;\n      isMixedIn = isComponentMixedIn(name, this.mixinEls);\n      if (isDefault || isMixedIn) { return; }\n\n      component = this.components[name];\n      if (!component) { return; }\n\n      // Wait for component to initialize.\n      if (!component.initialized) {\n        this.addEventListener('componentinitialized', function tryRemoveLater (evt) {\n          if (evt.detail.name !== name) { return; }\n          this.removeComponent(name);\n          this.removeEventListener('componentinitialized', tryRemoveLater);\n        });\n        return;\n      }\n\n      component.pause();\n      component.remove();\n      delete this.components[name];\n      this.emit('componentremoved', component.evtDetail);\n    },\n    writable: window.debug\n  },\n\n  /**\n   * Initialize or update all components.\n   * Build data using initial components, defined attributes, mixins, and defaults.\n   * Update default components before the rest.\n   *\n   * @member {function} getExtraComponents - Can be implemented to include component data\n   *   from other sources (e.g., implemented by primitives).\n   */\n  updateComponents: {\n    value: function () {\n      var data;\n      var extraComponents;\n      var i;\n      var name;\n      var componentsToUpdate = this.componentsToUpdate;\n\n      if (!this.hasLoaded) { return; }\n\n      // Gather mixin-defined components.\n      for (i = 0; i < this.mixinEls.length; i++) {\n        for (name in this.mixinEls[i].componentCache) {\n          if (isComponent(name)) { componentsToUpdate[name] = true; }\n        }\n      }\n\n      // Gather from extra initial component data if defined (e.g., primitives).\n      if (this.getExtraComponents) {\n        extraComponents = this.getExtraComponents();\n        for (name in extraComponents) {\n          if (isComponent(name)) { componentsToUpdate[name] = true; }\n        }\n      }\n\n      // Gather entity-defined components.\n      for (i = 0; i < this.attributes.length; ++i) {\n        name = this.attributes[i].name;\n        if (isComponent(name)) { componentsToUpdate[name] = true; }\n      }\n\n      // Initialze or update default components first.\n      for (name in this.defaultComponents) {\n        data = mergeComponentData(this.getDOMAttribute(name),\n                                  extraComponents && extraComponents[name]);\n        this.updateComponent(name, data);\n        delete componentsToUpdate[name];\n      }\n\n      // Initialize or update rest of components.\n      for (name in componentsToUpdate) {\n        data = mergeComponentData(this.getDOMAttribute(name),\n                                  extraComponents && extraComponents[name]);\n        this.updateComponent(name, data);\n        delete componentsToUpdate[name];\n      }\n    },\n    writable: window.debug\n  },\n\n  /**\n   * Initialize, update, or remove a single component.\n   *\n   * When initializing, we set the component on `this.components`.\n   *\n   * @param {string} attr - Component name.\n   * @param {object} attrValue - Value of the DOM attribute.\n   * @param {boolean} clobber - If new attrValue completely replaces previous properties.\n   */\n  updateComponent: {\n    value: function (attr, attrValue, clobber) {\n      var component = this.components[attr];\n      var isDefault = attr in this.defaultComponents;\n      if (component) {\n        // Remove component.\n        if (attrValue === null && !isDefault) {\n          this.removeComponent(attr);\n          return;\n        }\n        // Component already initialized. Update component.\n        component.updateProperties(attrValue, clobber);\n        return;\n      }\n\n      // Component not yet initialized. Initialize component.\n      this.initComponent(attr, attrValue, false);\n    }\n  },\n\n  /**\n   * If `attr` is a component name, detach the component from the entity.\n   *\n   * If `propertyName` is given, reset the component property value to its default.\n   *\n   * @param {string} attr - Attribute name, which could also be a component name.\n   * @param {string} propertyName - Component prop name, if resetting an individual prop.\n   */\n  removeAttribute: {\n    value: function (attr, propertyName) {\n      var component = this.components[attr];\n\n      // Remove component.\n      if (component && propertyName === undefined) {\n        this.setEntityAttribute(attr, undefined, null);\n        // Do not remove the component from the DOM if default component.\n        if (this.components[attr]) { return; }\n      }\n\n      // Reset component property value.\n      if (component && propertyName !== undefined) {\n        component.resetProperty(propertyName);\n        return;\n      }\n\n      // Remove mixins.\n      if (attr === 'mixin') {\n        this.mixinUpdate('');\n      }\n\n      window.HTMLElement.prototype.removeAttribute.call(this, attr);\n    }\n  },\n\n  /**\n   * Start dynamic behavior associated with entity such as dynamic components and animations.\n   * Tell all children entities to also play.\n   */\n  play: {\n    value: function () {\n      var entities;\n      var i;\n      var key;\n\n      // Already playing.\n      if (this.isPlaying || !this.hasLoaded) { return; }\n      this.isPlaying = true;\n\n      // Wake up all components.\n      for (key in this.components) { this.components[key].play(); }\n\n      // Tell all child entities to play.\n      entities = this.getChildEntities();\n      for (i = 0; i < entities.length; i++) { entities[i].play(); }\n\n      this.emit('play');\n    },\n    writable: true\n  },\n\n  /**\n   * Pause dynamic behavior associated with entity such as dynamic components and animations.\n   * Tell all children entities to also pause.\n   */\n  pause: {\n    value: function () {\n      var entities;\n      var i;\n      var key;\n\n      if (!this.isPlaying) { return; }\n      this.isPlaying = false;\n\n      // Sleep all components.\n      for (key in this.components) { this.components[key].pause(); }\n\n      // Tell all child entities to pause.\n      entities = this.getChildEntities();\n      for (i = 0; i < entities.length; i++) { entities[i].pause(); }\n\n      this.emit('pause');\n    },\n    writable: true\n  },\n\n  /**\n   * Deals with updates on entity-specific attributes (i.e., components and mixins).\n   *\n   * @param {string} attr\n   * @param {string} oldVal\n   * @param {string|object} newVal\n   */\n  setEntityAttribute: {\n    value: function (attr, oldVal, newVal) {\n      if (COMPONENTS[attr] || this.components[attr]) {\n        this.updateComponent(attr, newVal);\n        return;\n      }\n      if (attr === 'mixin') {\n        this.mixinUpdate(newVal, oldVal);\n        return;\n      }\n    }\n  },\n\n  mixinUpdate: {\n    value: function (newMixins, oldMixins) {\n      oldMixins = oldMixins || this.getAttribute('mixin');\n      this.updateMixins(newMixins, oldMixins);\n      this.updateComponents();\n    }\n  },\n\n  /**\n   * setAttribute can:\n   *\n   * 1. Set a single property of a multi-property component.\n   * 2. Set multiple properties of a multi-property component.\n   * 3. Replace properties of a multi-property component.\n   * 4. Set a value for a single-property component, mixin, or normal HTML attribute.\n   *\n   * @param {string} attrName - Component or attribute name.\n   * @param {*} arg1 - Can be a value, property name, CSS-style property string, or\n   *   object of properties.\n   * @param {*|bool} arg2 - If arg1 is a property name, this should be a value. Otherwise,\n   *   it is a boolean indicating whether to clobber previous values (defaults to false).\n   */\n  setAttribute: {\n    value: function (attrName, arg1, arg2) {\n      var newAttrValue;\n      var clobber;\n      var componentName;\n      var delimiterIndex;\n      var isDebugMode;\n\n      delimiterIndex = attrName.indexOf(MULTIPLE_COMPONENT_DELIMITER);\n      componentName = delimiterIndex > 0 ? attrName.substring(0, delimiterIndex) : attrName;\n\n      // Not a component. Normal set attribute.\n      if (!COMPONENTS[componentName]) {\n        ANode.prototype.setAttribute.call(this, attrName, arg1);\n        if (attrName === 'mixin') { this.mixinUpdate(arg1); }\n        return;\n      }\n\n      // Initialize component first if not yet initialized.\n      if (!this.components[attrName] && this.hasAttribute(attrName)) {\n        this.updateComponent(attrName,\n                             window.HTMLElement.prototype.getAttribute.call(this, attrName));\n      }\n\n      // Determine new attributes from the arguments\n      if (typeof arg2 !== 'undefined' &&\n          typeof arg1 === 'string' &&\n          arg1.length > 0 &&\n          typeof utils.styleParser.parse(arg1) === 'string') {\n        // Update a single property of a multi-property component\n        newAttrValue = {};\n        newAttrValue[arg1] = arg2;\n        clobber = false;\n      } else {\n        // Update with a value, object, or CSS-style property string, with the possiblity\n        // of clobbering previous values.\n        newAttrValue = arg1;\n        clobber = (arg2 === true);\n      }\n\n      // Update component\n      this.updateComponent(attrName, newAttrValue, clobber);\n\n      // In debug mode, write component data up to the DOM.\n      isDebugMode = this.sceneEl && this.sceneEl.getAttribute('debug');\n      if (isDebugMode) { this.components[attrName].flushToDOM(); }\n    },\n    writable: window.debug\n  },\n\n  /**\n   * Reflect component data in the DOM (as seen from the browser DOM Inspector).\n   *\n   * @param {bool} recursive - Also flushToDOM on the children.\n   **/\n  flushToDOM: {\n    value: function (recursive) {\n      var components = this.components;\n      var defaultComponents = this.defaultComponents;\n      var child;\n      var children = this.children;\n      var i;\n      var key;\n\n      // Flush entity's components to DOM.\n      for (key in components) {\n        components[key].flushToDOM(key in defaultComponents);\n      }\n\n      // Recurse.\n      if (!recursive) { return; }\n      for (i = 0; i < children.length; ++i) {\n        child = children[i];\n        if (!child.flushToDOM) { continue; }\n        child.flushToDOM(recursive);\n      }\n    }\n  },\n\n  /**\n   * If `attr` is a component, returns ALL component data including applied mixins and\n   * defaults.\n   *\n   * If `attr` is not a component, fall back to HTML getAttribute.\n   *\n   * @param {string} attr\n   * @returns {object|string} Object if component, else string.\n   */\n  getAttribute: {\n    value: function (attr) {\n      // If component, return component data.\n      var component;\n      if (attr === 'position') { return this.object3D.position; }\n      if (attr === 'rotation') { return getRotation(this); }\n      if (attr === 'scale') { return this.object3D.scale; }\n      component = this.components[attr];\n      if (component) { return component.data; }\n      return window.HTMLElement.prototype.getAttribute.call(this, attr);\n    },\n    writable: window.debug\n  },\n\n  /**\n   * `getAttribute` used to be `getDOMAttribute` and `getComputedAttribute` used to be\n   * what `getAttribute` is now. Now legacy code.\n   *\n   * @param {string} attr\n   * @returns {object|string} Object if component, else string.\n   */\n  getComputedAttribute: {\n    value: function (attr) {\n      warn('`getComputedAttribute` is deprecated. Use `getAttribute` instead.');\n      return this.getAttribute(attr);\n    }\n  },\n\n  /**\n   * If `attr` is a component, returns JUST the component data defined on the entity.\n   * Like a partial version of `getComputedAttribute` as returned component data\n   * does not include applied mixins or defaults.\n   *\n   * If `attr` is not a component, fall back to HTML getAttribute.\n   *\n   * @param {string} attr\n   * @returns {object|string} Object if component, else string.\n   */\n  getDOMAttribute: {\n    value: function (attr) {\n      // If cached value exists, return partial component data.\n      var component = this.components[attr];\n      if (component) { return component.attrValue; }\n      return window.HTMLElement.prototype.getAttribute.call(this, attr);\n    },\n    writable: window.debug\n  },\n\n  addState: {\n    value: function (state) {\n      if (this.is(state)) { return; }\n      this.states.push(state);\n      this.emit('stateadded', state);\n    }\n  },\n\n  removeState: {\n    value: function (state) {\n      var stateIndex = this.states.indexOf(state);\n      if (stateIndex === -1) { return; }\n      this.states.splice(stateIndex, 1);\n      this.emit('stateremoved', state);\n    }\n  },\n\n  /**\n   * Checks if the element is in a given state. e.g. el.is('alive');\n   * @type {string} state - Name of the state we want to check\n   */\n  is: {\n    value: function (state) {\n      return this.states.indexOf(state) !== -1;\n    }\n  }\n});\n\n/**\n * Check if a component is *defined* for an entity, including defaults and mixins.\n * Does not check whether the component has been *initialized* for an entity.\n *\n * @param {string} el - Entity.\n * @param {string} name - Component name.\n * @returns {boolean}\n */\nfunction checkComponentDefined (el, name) {\n  // Check if default components contain the component.\n  if (el.defaultComponents[name] !== undefined) { return true; }\n\n  // Check if element contains the component.\n  if (el.components[name] && el.components[name].attrValue) { return true; }\n\n  return isComponentMixedIn(name, el.mixinEls);\n}\n\n/**\n * Check if any mixins contains a component.\n *\n * @param {string} name - Component name.\n * @param {array} mixinEls - Array of <a-mixin>s.\n */\nfunction isComponentMixedIn (name, mixinEls) {\n  var i;\n  var inMixin = false;\n  for (i = 0; i < mixinEls.length; ++i) {\n    inMixin = mixinEls[i].hasAttribute(name);\n    if (inMixin) { break; }\n  }\n  return inMixin;\n}\n\n/**\n * Given entity defined value, merge in extra data if necessary.\n * Handle both single and multi-property components.\n *\n * @param {string} attrValue - Entity data.\n * @param extraData - Entity data from another source to merge in.\n */\nfunction mergeComponentData (attrValue, extraData) {\n  // Extra data not defined, just return attrValue.\n  if (!extraData) { return attrValue; }\n\n  // Merge multi-property data.\n  if (extraData.constructor === Object) {\n    return utils.extend(extraData, utils.styleParser.parse(attrValue || {}));\n  }\n\n  // Return data, precendence to the defined value.\n  return attrValue || extraData;\n}\n\nfunction isComponent (componentName) {\n  if (componentName.indexOf(MULTIPLE_COMPONENT_DELIMITER) !== -1) {\n    componentName = componentName.split(MULTIPLE_COMPONENT_DELIMITER)[0];\n  }\n  if (!COMPONENTS[componentName]) { return false; }\n  return true;\n}\n\nfunction getRotation (entityEl) {\n  var radToDeg = THREE.Math.radToDeg;\n  var rotation = entityEl.object3D.rotation;\n  var rotationObj = entityEl.rotationObj;\n  rotationObj.x = radToDeg(rotation.x);\n  rotationObj.y = radToDeg(rotation.y);\n  rotationObj.z = radToDeg(rotation.z);\n  return rotationObj;\n}\n\nAEntity = registerElement('a-entity', {prototype: proto});\nmodule.exports = AEntity;\n","var ANode = require('./a-node');\nvar registerElement = require('./a-register-element').registerElement;\nvar components = require('./component').components;\n\nvar MULTIPLE_COMPONENT_DELIMITER = '__';\n\n/**\n * @member {object} componentCache - Cache of pre-parsed values. An object where the keys\n *         are component names and the values are already parsed by the component.\n */\nmodule.exports = registerElement('a-mixin', {\n  prototype: Object.create(ANode.prototype, {\n    createdCallback: {\n      value: function () {\n        this.componentCache = {};\n        this.id = this.getAttribute('id');\n      }\n    },\n\n    attributeChangedCallback: {\n      value: function (attr, oldVal, newVal) {\n        this.cacheAttribute(attr, newVal);\n      }\n    },\n\n    attachedCallback: {\n      value: function () {\n        this.sceneEl = this.closestScene();\n        this.cacheAttributes();\n        this.updateEntities();\n        this.load();\n      }\n    },\n\n    /**\n     * setAttribute that parses and caches component values.\n     */\n    setAttribute: {\n      value: function (attr, value) {\n        this.cacheAttribute(attr, value);\n        window.HTMLElement.prototype.setAttribute.call(this, attr, value);\n      }\n    },\n\n    /**\n     * If `attr` is a component, then parse the value using the schema and store it.\n     */\n    cacheAttribute: {\n      value: function (attr, value) {\n        var componentName = attr.split(MULTIPLE_COMPONENT_DELIMITER)[0];\n        var component = components[componentName];\n        if (!component) { return; }\n        if (value === undefined) {\n          value = window.HTMLElement.prototype.getAttribute.call(this, attr);\n        }\n        this.componentCache[attr] = component.parseAttrValueForCache(value);\n      }\n    },\n\n    /**\n     * If `attr` is a component, then grab pre-parsed value from the cache.\n     * Else do a normal getAttribute.\n     */\n    getAttribute: {\n      value: function (attr) {\n        return this.componentCache[attr] ||\n               window.HTMLElement.prototype.getAttribute.call(this, attr);\n      }\n    },\n\n    /**\n     * Parse and cache every component defined on the mixin.\n     */\n    cacheAttributes: {\n      value: function () {\n        var attributes = this.attributes;\n        var attrName;\n        var i;\n        for (i = 0; i < attributes.length; i++) {\n          attrName = attributes[i].name;\n          this.cacheAttribute(attrName);\n        }\n      }\n    },\n\n    /**\n     * For entities that already have been loaded by the time the mixin was attached, tell\n     * those entities to register the mixin and refresh their component data.\n     */\n    updateEntities: {\n      value: function () {\n        if (!this.sceneEl) { return; }\n        var entities = this.sceneEl.querySelectorAll('[mixin~=' + this.id + ']');\n        for (var i = 0; i < entities.length; i++) {\n          var entity = entities[i];\n          if (!entity.hasLoaded) { continue; }\n          entity.registerMixin(this.id);\n          Object.keys(this.componentCache).forEach(function updateComponent (componentName) {\n            entity.updateComponent(componentName);\n          });\n        }\n      }\n    }\n  })\n});\n","/* global MutationObserver */\nvar registerElement = require('./a-register-element').registerElement;\nvar isNode = require('./a-register-element').isNode;\nvar utils = require('../utils/');\n\nvar bind = utils.bind;\nvar warn = utils.debug('core:a-node:warn');\n\n/**\n * Base class for A-Frame that manages loading of objects.\n *\n * Nodes can be modified using mixins.\n * Nodes emit a `loaded` event when they and their children have initialized.\n */\nmodule.exports = registerElement('a-node', {\n  prototype: Object.create(window.HTMLElement.prototype, {\n    createdCallback: {\n      value: function () {\n        this.hasLoaded = false;\n        this.isNode = true;\n        this.mixinEls = [];\n        this.mixinObservers = {};\n      },\n      writable: window.debug\n    },\n\n    attachedCallback: {\n      value: function () {\n        var mixins;\n        this.sceneEl = this.closestScene();\n\n        if (!this.sceneEl) {\n          warn('You are attempting to attach <' + this.tagName + '> outside of an A-Frame ' +\n               'scene. Append this element to `<a-scene>` instead.');\n        }\n\n        this.hasLoaded = false;\n        this.emit('nodeready', {}, false);\n\n        mixins = this.getAttribute('mixin');\n        if (mixins) { this.updateMixins(mixins); }\n      },\n      writable: window.debug\n    },\n\n    attributeChangedCallback: {\n      value: function (attr, oldVal, newVal) {\n        if (attr === 'mixin') { this.updateMixins(newVal, oldVal); }\n      }\n    },\n\n   /**\n    * Returns the first scene by traversing up the tree starting from and\n    * including receiver element.\n    */\n    closestScene: {\n      value: function closest () {\n        var element = this;\n        while (element) {\n          if (element.isScene) { break; }\n          element = element.parentElement;\n        }\n        return element;\n      }\n    },\n\n    /**\n     * Returns first element matching a selector by traversing up the tree starting\n     * from and including receiver element.\n     *\n     * @param {string} selector - Selector of element to find.\n     */\n    closest: {\n      value: function closest (selector) {\n        var matches = this.matches || this.mozMatchesSelector ||\n          this.msMatchesSelector || this.oMatchesSelector || this.webkitMatchesSelector;\n        var element = this;\n        while (element) {\n          if (matches.call(element, selector)) { break; }\n          element = element.parentElement;\n        }\n        return element;\n      }\n    },\n\n    detachedCallback: {\n      value: function () {\n        this.hasLoaded = false;\n      }\n    },\n\n    /**\n     * Wait for children to load, if any.\n     * Then emit `loaded` event and set `hasLoaded`.\n     */\n    load: {\n      value: function (cb, childFilter) {\n        var children;\n        var childrenLoaded;\n        var self = this;\n\n        if (this.hasLoaded) { return; }\n\n        // Default to waiting for all nodes.\n        childFilter = childFilter || isNode;\n        // Wait for children to load (if any), then load.\n        children = this.getChildren();\n        childrenLoaded = children.filter(childFilter).map(function (child) {\n          return new Promise(function waitForLoaded (resolve) {\n            if (child.hasLoaded) { return resolve(); }\n            child.addEventListener('loaded', resolve);\n          });\n        });\n\n        Promise.all(childrenLoaded).then(function emitLoaded () {\n          self.hasLoaded = true;\n          if (cb) { cb(); }\n          self.emit('loaded', undefined, false);\n        });\n      },\n      writable: true\n    },\n\n    getChildren: {\n      value: function () {\n        return Array.prototype.slice.call(this.children, 0);\n      }\n    },\n\n    /**\n     * Remove old mixins and mixin listeners.\n     * Add new mixins and mixin listeners.\n     */\n    updateMixins: {\n      value: function (newMixins, oldMixins) {\n        var newMixinIds = newMixins ? newMixins.trim().split(/\\s+/) : [];\n        var oldMixinIds = oldMixins ? oldMixins.trim().split(/\\s+/) : [];\n\n        // Unregister old mixins.\n        oldMixinIds.filter(function (i) {\n          return newMixinIds.indexOf(i) < 0;\n        }).forEach(bind(this.unregisterMixin, this));\n\n        // Register new mixins.\n        this.mixinEls = [];\n        newMixinIds.forEach(bind(this.registerMixin, this));\n      }\n    },\n\n    registerMixin: {\n      value: function (mixinId) {\n        if (!this.sceneEl) { return; }\n        var mixinEl = this.sceneEl.querySelector('a-mixin#' + mixinId);\n        if (!mixinEl) { return; }\n        this.attachMixinListener(mixinEl);\n        this.mixinEls.push(mixinEl);\n      }\n    },\n\n    setAttribute: {\n      value: function (attr, newValue) {\n        if (attr === 'mixin') { this.updateMixins(newValue); }\n        window.HTMLElement.prototype.setAttribute.call(this, attr, newValue);\n      }\n    },\n\n    unregisterMixin: {\n      value: function (mixinId) {\n        var mixinEls = this.mixinEls;\n        var mixinEl;\n        var i;\n        for (i = 0; i < mixinEls.length; ++i) {\n          mixinEl = mixinEls[i];\n          if (mixinId === mixinEl.id) {\n            mixinEls.splice(i, 1);\n            break;\n          }\n        }\n        this.removeMixinListener(mixinId);\n      }\n    },\n\n    removeMixinListener: {\n      value: function (mixinId) {\n        var observer = this.mixinObservers[mixinId];\n        if (!observer) { return; }\n        observer.disconnect();\n        this.mixinObservers[mixinId] = null;\n      }\n    },\n\n    attachMixinListener: {\n      value: function (mixinEl) {\n        var self = this;\n        var mixinId = mixinEl.id;\n        var currentObserver = this.mixinObservers[mixinId];\n        if (!mixinEl) { return; }\n        if (currentObserver) { return; }\n        var observer = new MutationObserver(function (mutations) {\n          var attr = mutations[0].attributeName;\n          self.handleMixinUpdate(attr);\n        });\n        var config = { attributes: true };\n        observer.observe(mixinEl, config);\n        this.mixinObservers[mixinId] = observer;\n      }\n    },\n\n    handleMixinUpdate: {\n      value: function () { /* no-op */ }\n    },\n\n    /**\n     * Emit a DOM event.\n     *\n     * @param {string} name - Name of event.\n     * @param {object} [detail={}] - Custom data to pass as `detail` to the event.\n     * @param {boolean} [bubbles=true] - Whether the event should bubble.\n     * @param {object} [extraData] - Extra data to pass to the event, if any.\n     */\n    emit: {\n      value: function (name, detail, bubbles, extraData) {\n        var data;\n        var self = this;\n        if (bubbles === undefined) { bubbles = true; }\n        data = {bubbles: !!bubbles, detail: detail};\n        if (extraData) { utils.extend(data, extraData); }\n        return utils.fireEvent(self, name, data);\n      },\n      writable: window.debug\n    },\n\n    /**\n     * Return a closure that emits a DOM event.\n     *\n     * @param {String} name\n     *   Name of event (use a space-delimited string for multiple events).\n     * @param {Object} detail\n     *   Custom data (optional) to pass as `detail` if the event is to\n     *   be a `CustomEvent`.\n     * @param {Boolean} bubbles\n     *   Whether the event should be bubble.\n     */\n    emitter: {\n      value: function (name, detail, bubbles) {\n        var self = this;\n        return function () {\n          self.emit(name, detail, bubbles);\n        };\n      }\n    }\n  })\n});\n","/*\n  ------------------------------------------------------------\n  ------------- WARNING WARNING WARNING WARNING --------------\n  ------------------------------------------------------------\n\n  This module wraps registerElement to deal with components that inherit from\n  `ANode` and `AEntity`.  It's a pass through in any other case.\n\n  It wraps some of the prototype methods of the created element to make sure\n  that the corresponding functions in the base prototypes (`AEntity` and `ANode`)\n  are also invoked. The method in the base prototype is always called before the one\n  in the derived prototype.\n*/\n\n// Polyfill `document.registerElement`.\nrequire('document-register-element');\n\nvar ANode;  // Must declare before AEntity. Initialized at the bottom.\nvar AEntity;\nvar knownTags = module.exports.knownTags = {};\n\nfunction addTagName (tagName) {\n  knownTags[tagName.toLowerCase()] = true;\n}\n\n/**\n * Return whether the element type is one of our known registered ones.\n *\n * @param {string} node - The name of the tag to register.\n * @returns {boolean} Whether the tag name matches that of our registered custom elements.\n */\nmodule.exports.isNode = function (node) {\n  return node.tagName.toLowerCase() in knownTags || node.isNode;\n};\n\n/**\n * @param {string} tagName - The name of the tag to register.\n * @param {object} obj - The prototype of the new element.\n * @returns {object} The prototype of the new element.\n */\nmodule.exports.registerElement = function (tagName, obj) {\n  var proto = Object.getPrototypeOf(obj.prototype);\n  var newObj = obj;\n  var isANode = ANode && proto === ANode.prototype;\n  var isAEntity = AEntity && proto === AEntity.prototype;\n\n  if (isANode || isAEntity) { addTagName(tagName); }\n\n  // Wrap if element inherits from `ANode`.\n  if (isANode) {\n    newObj = wrapANodeMethods(obj.prototype);\n    newObj = {prototype: Object.create(proto, newObj)};\n  }\n\n  // Wrap if element inherits from `AEntity`.\n  if (isAEntity) {\n    newObj = wrapAEntityMethods(obj.prototype);\n    newObj = {prototype: Object.create(proto, newObj)};\n  }\n\n  return document.registerElement(tagName, newObj);\n};\n\n/**\n * Wrap some obj methods to call those on `ANode` base prototype.\n *\n * @param {object} obj - Object that contains the methods that will be wrapped.\n * @return {object} An object with the same properties as the input parameter but\n * with some of methods wrapped.\n */\nfunction wrapANodeMethods (obj) {\n  var newObj = {};\n  var ANodeMethods = [\n    'attachedCallback',\n    'attributeChangedCallback',\n    'createdCallback'\n  ];\n  wrapMethods(newObj, ANodeMethods, obj, ANode.prototype);\n  copyProperties(obj, newObj);\n  return newObj;\n}\n\n/**\n * This wraps some of the obj methods to call those on `AEntity` base prototype.\n *\n * @param {object} obj - The objects that contains the methods that will be wrapped.\n * @return {object} - An object with the same properties as the input parameter but\n * with some of methods wrapped.\n */\nfunction wrapAEntityMethods (obj) {\n  var newObj = {};\n  var ANodeMethods = [\n    'attachedCallback',\n    'attributeChangedCallback',\n    'createdCallback'\n  ];\n  var AEntityMethods = [\n    'attachedCallback',\n    'attributeChangedCallback',\n    'createdCallback',\n    'detachedCallback'\n  ];\n\n  wrapMethods(newObj, ANodeMethods, obj, ANode.prototype);\n  wrapMethods(newObj, AEntityMethods, obj, AEntity.prototype);\n  // Copies the remaining properties into the new object.\n  copyProperties(obj, newObj);\n  return newObj;\n}\n\n/**\n * Wrap a list a methods to ensure that those in the base prototype are called\n * before the derived one.\n *\n * @param {object} targetObj - Object that will contain the wrapped methods.\n * @param {array} methodList - List of methods from the derivedObj that will be wrapped.\n * @param {object} derivedObject - Object that inherits from the baseObj.\n * @param {object} baseObj - Object that derivedObj inherits from.\n */\nfunction wrapMethods (targetObj, methodList, derivedObj, baseObj) {\n  methodList.forEach(function (methodName) {\n    wrapMethod(targetObj, methodName, derivedObj, baseObj);\n  });\n}\nmodule.exports.wrapMethods = wrapMethods;\n\n/**\n * Wrap one method to ensure that the one in the base prototype is called before\n * the one in the derived one.\n *\n * @param {object} obj - Object that will contain the wrapped method.\n * @param {string} methodName - The name of the method that will be wrapped.\n * @param {object} derivedObject - Object that inherits from the baseObj.\n * @param {object} baseObj - Object that derivedObj inherits from.\n */\nfunction wrapMethod (obj, methodName, derivedObj, baseObj) {\n  var derivedMethod = derivedObj[methodName];\n  var baseMethod = baseObj[methodName];\n\n  // Derived prototype does not define method, no need to wrap.\n  if (!derivedMethod || !baseMethod) { return; }\n\n  // Derived prototype doesn't override the one in the base one, no need to wrap.\n  if (derivedMethod === baseMethod) { return; }\n\n  // Wrap to ensure the base method is called before the one in the derived prototype.\n  obj[methodName] = {\n    value: function wrappedMethod () {\n      baseMethod.apply(this, arguments);\n      return derivedMethod.apply(this, arguments);\n    },\n    writable: window.debug\n  };\n}\n\n/**\n * It copies the properties from source to destination object if they don't\n * exist already.\n *\n * @param {object} source - The object where properties are copied from.\n * @param {type} destination - The object where properties are copied to.\n */\nfunction copyProperties (source, destination) {\n  var props = Object.getOwnPropertyNames(source);\n  props.forEach(function (prop) {\n    var desc;\n    if (!destination[prop]) {\n      desc = Object.getOwnPropertyDescriptor(source, prop);\n      destination[prop] = {value: source[prop], writable: desc.writable};\n    }\n  });\n}\n\nANode = require('./a-node');\nAEntity = require('./a-entity');\n","/* global Node */\nvar schema = require('./schema');\nvar scenes = require('./scene/scenes');\nvar systems = require('./system');\nvar utils = require('../utils/');\n\nvar components = module.exports.components = {};  // Keep track of registered components.\nvar parseProperties = schema.parseProperties;\nvar parseProperty = schema.parseProperty;\nvar processSchema = schema.process;\nvar isSingleProp = schema.isSingleProperty;\nvar stringifyProperties = schema.stringifyProperties;\nvar stringifyProperty = schema.stringifyProperty;\nvar styleParser = utils.styleParser;\nvar warn = utils.debug('core:component:warn');\n\nvar aframeScript = document.currentScript;\nvar upperCaseRegExp = new RegExp('[A-Z]+');\n\n/**\n * Component class definition.\n *\n * Components configure appearance, modify behavior, or add functionality to\n * entities. The behavior and appearance of an entity can be changed at runtime\n * by adding, removing, or updating components. Entities do not share instances\n * of components.\n *\n * @member {object} el - Reference to the entity element.\n * @member {string} attrValue - Value of the corresponding HTML attribute.\n * @member {object} data - Component data populated by parsing the\n *         mapped attribute of the component plus applying defaults and mixins.\n */\nvar Component = module.exports.Component = function (el, attrValue, id) {\n  var self = this;\n  this.el = el;\n  this.id = id;\n  this.attrName = this.name + (id ? '__' + id : '');\n  this.evtDetail = {id: this.id, name: this.name};\n  this.initialized = false;\n  this.el.components[this.attrName] = this;\n\n  // Store component data from previous update call.\n  this.oldData = undefined;\n\n  // Last value passed to updateProperties.\n  this.previousAttrValue = undefined;\n  this.throttledEmitComponentChanged = utils.throttle(function emitChange () {\n    el.emit('componentchanged', self.evtDetail, false);\n  }, 200);\n  this.updateProperties(attrValue);\n};\n\nComponent.prototype = {\n  /**\n   * Contains the type schema and defaults for the data values.\n   * Data is coerced into the types of the values of the defaults.\n   */\n  schema: {},\n\n  /**\n   * Init handler. Similar to attachedCallback.\n   * Called during component initialization and is only run once.\n   * Components can use this to set initial state.\n   */\n  init: function () { /* no-op */ },\n\n  /**\n   * Update handler. Similar to attributeChangedCallback.\n   * Called whenever component's data changes.\n   * Also called on component initialization when the component receives initial data.\n   *\n   * @param {object} prevData - Previous attributes of the component.\n   */\n  update: function (prevData) { /* no-op */ },\n\n  updateSchema: undefined,\n\n  /**\n   * Tick handler.\n   * Called on each tick of the scene render loop.\n   * Affected by play and pause.\n   *\n   * @param {number} time - Scene tick time.\n   * @param {number} timeDelta - Difference in current render time and previous render time.\n   */\n  tick: undefined,\n\n  /**\n   * Tock handler.\n   * Called on each tock of the scene render loop.\n   * Affected by play and pause.\n   *\n   * @param {number} time - Scene tick time.\n   * @param {number} timeDelta - Difference in current render time and previous render time.\n   */\n  tock: undefined,\n\n  /**\n   * Called to start any dynamic behavior (e.g., animation, AI, events, physics).\n   */\n  play: function () { /* no-op */ },\n\n  /**\n   * Called to stop any dynamic behavior (e.g., animation, AI, events, physics).\n   */\n  pause: function () { /* no-op */ },\n\n  /**\n   * Remove handler. Similar to detachedCallback.\n   * Called whenever component is removed from the entity (i.e., removeAttribute).\n   * Components can use this to reset behavior on the entity.\n   */\n  remove: function () { /* no-op */ },\n\n  /**\n   * Parses each property based on property type.\n   * If component is single-property, then parses the single property value.\n   *\n   * @param {string} value - HTML attribute value.\n   * @param {boolean} silent - Suppress warning messages.\n   * @returns {object} Component data.\n   */\n  parse: function (value, silent) {\n    var schema = this.schema;\n    if (isSingleProp(schema)) { return parseProperty(value, schema); }\n    return parseProperties(styleParser.parse(value), schema, true, this.name, silent);\n  },\n\n  /**\n   * Stringify properties if necessary.\n   *\n   * Only called from `Entity.setAttribute` for properties whose parsers accept a non-string\n   * value (e.g., selector, vec3 property types).\n   *\n   * @param {object} data - Complete component data.\n   * @returns {string}\n   */\n  stringify: function (data) {\n    var schema = this.schema;\n    if (typeof data === 'string') { return data; }\n    if (isSingleProp(schema)) { return stringifyProperty(data, schema); }\n    data = stringifyProperties(data, schema);\n    return styleParser.stringify(data);\n  },\n\n  /**\n   * Update the cache of the pre-parsed attribute value.\n   *\n   * @param {string} value - New data.\n   * @param {boolean } clobber - Whether to wipe out and replace previous data.\n   */\n  updateCachedAttrValue: function (value, clobber) {\n    var attrValue = this.parseAttrValueForCache(value);\n    var isSinglePropSchema = isSingleProp(this.schema);\n    var property;\n    if (value === undefined) { return; }\n\n    // Merge new data with previous `attrValue` if updating and not clobbering.\n    if (!isSinglePropSchema && !clobber) {\n      this.attrValue = this.attrValue ? cloneData(this.attrValue) : {};\n      for (property in attrValue) {\n        this.attrValue[property] = attrValue[property];\n      }\n      return;\n    }\n\n    // If single-prop schema or clobber.\n    this.attrValue = attrValue;\n  },\n\n  /**\n   * Given an HTML attribute value parses the string\n   * based on the component schema. To avoid double parsings of\n   * strings into strings we store the original instead\n   * of the parsed one\n   *\n   * @param {string} value - HTML attribute value\n   */\n  parseAttrValueForCache: function (value) {\n    var parsedValue;\n    if (typeof value !== 'string') { return value; }\n    if (isSingleProp(this.schema)) {\n      parsedValue = this.schema.parse(value);\n      /**\n       * To avoid bogus double parsings. Cached values will be parsed when building\n       * component data. For instance when parsing a src id to its url, we want to cache\n       * original string and not the parsed one (#monster -> models/monster.dae)\n       * so when building data we parse the expected value.\n       */\n      if (typeof parsedValue === 'string') { parsedValue = value; }\n    } else {\n      // Parse using the style parser to avoid double parsing of individual properties.\n      parsedValue = styleParser.parse(value);\n    }\n    return parsedValue;\n  },\n\n  /**\n   * Write cached attribute data to the entity DOM element.\n   *\n   * @param {boolean} isDefault - Whether component is a default component. Always flush for\n   *   default components.\n   */\n  flushToDOM: function (isDefault) {\n    var attrValue = isDefault ? this.data : this.attrValue;\n    if (!attrValue) { return; }\n    window.HTMLElement.prototype.setAttribute.call(this.el, this.attrName,\n                                            this.stringify(attrValue));\n  },\n\n  /**\n   * Apply new component data if data has changed.\n   *\n   * @param {string} attrValue - HTML attribute value.\n   *        If undefined, use the cached attribute value and continue updating properties.\n   * @param {boolean} clobber - The previous component data is overwritten by the atrrValue\n   */\n  updateProperties: function (attrValue, clobber) {\n    var el = this.el;\n    var isSinglePropSchema;\n    var key;\n    var skipTypeChecking;\n    var oldData = this.oldData;\n\n    // Just cache the attribute if the entity has not loaded\n    // Components are not initialized until the entity has loaded\n    if (!el.hasLoaded) {\n      this.updateCachedAttrValue(attrValue);\n      return;\n    }\n\n    isSinglePropSchema = isSingleProp(this.schema);\n\n    // Disable type checking if the passed attribute is an object and has not changed.\n    skipTypeChecking = attrValue !== null && typeof this.previousAttrValue === 'object' &&\n                       attrValue === this.previousAttrValue;\n    if (skipTypeChecking) {\n      for (key in this.attrValue) {\n        if (!(key in attrValue)) {\n          skipTypeChecking = false;\n          break;\n        }\n      }\n      for (key in attrValue) {\n        if (!(key in this.attrValue)) {\n          skipTypeChecking = false;\n          break;\n        }\n      }\n    }\n\n    // Cache previously passed attribute to decide if we skip type checking.\n    this.previousAttrValue = attrValue;\n\n    attrValue = this.parseAttrValueForCache(attrValue);\n    if (this.updateSchema) { this.updateSchema(this.buildData(attrValue, false, true)); }\n    this.data = this.buildData(attrValue, clobber, false, skipTypeChecking);\n\n    // Cache current attrValue for future updates.\n    this.updateCachedAttrValue(attrValue, clobber);\n\n    if (!this.initialized) {\n      // Component is being already initialized.\n      if (el.initializingComponents[this.name]) { return; }\n      // Prevent infinite loop in case of init method setting same component on the entity.\n      el.initializingComponents[this.name] = true;\n      // Initialize component.\n      this.init();\n      this.initialized = true;\n      delete el.initializingComponents[this.name];\n      // For oldData, pass empty object to multiple-prop schemas or object single-prop schema.\n      // Pass undefined to rest of types.\n      oldData = (!isSinglePropSchema ||\n                 typeof parseProperty(undefined, this.schema) === 'object') ? {} : undefined;\n      // Store current data as previous data for future updates.\n      this.oldData = extendProperties({}, this.data, isSinglePropSchema);\n      this.update(oldData);\n      // Play the component if the entity is playing.\n      if (el.isPlaying) { this.play(); }\n      el.emit('componentinitialized', this.evtDetail, false);\n    } else {\n      // Don't update if properties haven't changed\n      if (utils.deepEqual(this.oldData, this.data)) { return; }\n     // Store current data as previous data for future updates.\n      this.oldData = extendProperties({}, this.data, isSinglePropSchema);\n      // Update component.\n      this.update(oldData);\n      this.throttledEmitComponentChanged();\n    }\n  },\n\n  /**\n   * Reset value of a property to the property's default value.\n   * If single-prop component, reset value to component's default value.\n   *\n   * @param {string} propertyName - Name of property to reset.\n   */\n  resetProperty: function (propertyName) {\n    if (isSingleProp(this.schema)) {\n      this.attrValue = undefined;\n    } else {\n      if (!(propertyName in this.attrValue)) { return; }\n      delete this.attrValue[propertyName];\n    }\n    this.updateProperties(this.attrValue);\n  },\n\n  /**\n   * Extend schema of component given a partial schema.\n   *\n   * Some components might want to mutate their schema based on certain properties.\n   * e.g., Material component changes its schema based on `shader` to account for different\n   * uniforms\n   *\n   * @param {object} schemaAddon - Schema chunk that extend base schema.\n   */\n  extendSchema: function (schemaAddon) {\n    // Clone base schema.\n    var extendedSchema = utils.extend({}, components[this.name].schema);\n    // Extend base schema with new schema chunk.\n    utils.extend(extendedSchema, schemaAddon);\n    this.schema = processSchema(extendedSchema);\n    this.el.emit('schemachanged', {component: this.name});\n  },\n\n  /**\n   * Builds component data from the current state of the entity, ultimately\n   * updating this.data.\n   *\n   * If the component was detached completely, set data to null.\n   *\n   * Precedence:\n   * 1. Defaults data\n   * 2. Mixin data.\n   * 3. Attribute data.\n   *\n   * Finally coerce the data to the types of the defaults.\n   *\n   * @param {object} newData - Element new data.\n   * @param {boolean} clobber - The previous data is completely replaced by the new one.\n   * @param {boolean} silent - Suppress warning messages.\n   * @param {boolean} skipTypeChecking - Skip type checking and cohercion.\n   * @return {object} The component data\n   */\n  buildData: function (newData, clobber, silent, skipTypeChecking) {\n    var componentDefined;\n    var data;\n    var defaultValue;\n    var keys;\n    var keysLength;\n    var mixinData;\n    var schema = this.schema;\n    var i;\n    var isSinglePropSchema = isSingleProp(schema);\n    var mixinEls = this.el.mixinEls;\n    var previousData;\n\n    // Whether component has a defined value. For arrays, treat empty as not defined.\n    componentDefined = newData && newData.constructor === Array\n      ? newData.length\n      : newData !== undefined && newData !== null;\n\n    // 1. Default values (lowest precendence).\n    if (isSinglePropSchema) {\n      // Clone default value if plain object so components don't share the same object\n      // that might be modified by the user.\n      data = isObjectOrArray(schema.default) ? utils.clone(schema.default) : schema.default;\n    } else {\n      // Preserve previously set properties if clobber not enabled.\n      previousData = !clobber && this.attrValue;\n      // Clone previous data to prevent sharing references with attrValue that might be\n      // modified by the user.\n      data = typeof previousData === 'object' ? cloneData(previousData) : {};\n\n      // Apply defaults.\n      for (i = 0, keys = Object.keys(schema), keysLength = keys.length; i < keysLength; i++) {\n        defaultValue = schema[keys[i]].default;\n        if (data[keys[i]] !== undefined) { continue; }\n        // Clone default value if object so components don't share object\n        data[keys[i]] = isObjectOrArray(defaultValue) ? utils.clone(defaultValue) : defaultValue;\n      }\n    }\n\n    // 2. Mixin values.\n    for (i = 0; i < mixinEls.length; i++) {\n      mixinData = mixinEls[i].getAttribute(this.attrName);\n      if (mixinData) {\n        data = extendProperties(data, mixinData, isSinglePropSchema);\n      }\n    }\n\n    // 3. Attribute values (highest precendence).\n    if (componentDefined) {\n      if (isSinglePropSchema) {\n        if (skipTypeChecking === true) { return newData; }\n        return parseProperty(newData, schema);\n      }\n      data = extendProperties(data, newData, isSinglePropSchema);\n    } else {\n      if (skipTypeChecking === true) { return data; }\n      // Parse and coerce using the schema.\n      if (isSinglePropSchema) { return parseProperty(data, schema); }\n    }\n\n    if (skipTypeChecking === true) { return data; }\n    return parseProperties(data, schema, undefined, this.name, silent);\n  }\n};\n\n// For testing.\nif (window.debug) {\n  var registrationOrderWarnings = module.exports.registrationOrderWarnings = {};\n}\n\n/**\n * Registers a component to A-Frame.\n *\n * @param {string} name - Component name.\n * @param {object} definition - Component schema and lifecycle method handlers.\n * @returns {object} Component.\n */\nmodule.exports.registerComponent = function (name, definition) {\n  var NewComponent;\n  var proto = {};\n\n  // Warning if component is statically registered after the scene.\n  if (document.currentScript && document.currentScript !== aframeScript) {\n    scenes.forEach(function checkPosition (sceneEl) {\n      // Okay to register component after the scene at runtime.\n      if (sceneEl.hasLoaded) { return; }\n\n      // Check that component is declared before the scene.\n      if (document.currentScript.compareDocumentPosition(sceneEl) ===\n          Node.DOCUMENT_POSITION_FOLLOWING) { return; }\n\n      warn('The component `' + name + '` was registered in a <script> tag after the scene. ' +\n           'Component <script> tags in an HTML file should be declared *before* the scene ' +\n           'such that the component is available to entities during scene initialization.');\n\n      // For testing.\n      if (window.debug) { registrationOrderWarnings[name] = true; }\n    });\n  }\n\n  if (upperCaseRegExp.test(name) === true) {\n    warn('The component name `' + name + '` contains uppercase characters, but ' +\n         'HTML will ignore the capitalization of attribute names. ' +\n         'Change the name to be lowercase: `' + name.toLowerCase() + '`');\n  }\n\n  if (name.indexOf('__') !== -1) {\n    throw new Error('The component name `' + name + '` is not allowed. ' +\n                    'The sequence __ (double underscore) is reserved to specify an id' +\n                    ' for multiple components of the same type');\n  }\n\n  // Format definition object to prototype object.\n  Object.keys(definition).forEach(function (key) {\n    proto[key] = {\n      value: definition[key],\n      writable: true\n    };\n  });\n\n  if (components[name]) {\n    throw new Error('The component `' + name + '` has been already registered. ' +\n                    'Check that you are not loading two versions of the same component ' +\n                    'or two different components of the same name.');\n  }\n  NewComponent = function (el, attr, id) {\n    Component.call(this, el, attr, id);\n  };\n\n  NewComponent.prototype = Object.create(Component.prototype, proto);\n  NewComponent.prototype.name = name;\n  NewComponent.prototype.constructor = NewComponent;\n  NewComponent.prototype.system = systems && systems.systems[name];\n  NewComponent.prototype.play = wrapPlay(NewComponent.prototype.play);\n  NewComponent.prototype.pause = wrapPause(NewComponent.prototype.pause);\n\n  components[name] = {\n    Component: NewComponent,\n    dependencies: NewComponent.prototype.dependencies,\n    isSingleProp: isSingleProp(NewComponent.prototype.schema),\n    multiple: NewComponent.prototype.multiple,\n    parse: NewComponent.prototype.parse,\n    parseAttrValueForCache: NewComponent.prototype.parseAttrValueForCache,\n    schema: utils.extend(processSchema(NewComponent.prototype.schema, NewComponent.prototype.name)),\n    stringify: NewComponent.prototype.stringify,\n    type: NewComponent.prototype.type\n  };\n  return NewComponent;\n};\n\n/**\n* Clone component data.\n* Clone only the properties that are plain objects while keeping a reference for the rest.\n*\n* @param data - Component data to clone.\n* @returns Cloned data.\n*/\nfunction cloneData (data) {\n  var clone = {};\n  var parsedProperty;\n  var key;\n  for (key in data) {\n    parsedProperty = data[key];\n    clone[key] = isObjectOrArray(parsedProperty) ? utils.clone(parsedProperty) : parsedProperty;\n  }\n  return clone;\n}\n\n/**\n* Object extending with checking for single-property schema.\n*\n* @param dest - Destination object or value.\n* @param source - Source object or value\n* @param {boolean} isSinglePropSchema - Whether or not schema is only a single property.\n* @returns Overridden object or value.\n*/\nfunction extendProperties (dest, source, isSinglePropSchema) {\n  if (isSinglePropSchema && (source === null || typeof source !== 'object')) { return source; }\n  return utils.extend(dest, source);\n}\n\n/**\n * Checks if a component has defined a method that needs to run every frame.\n */\nfunction hasBehavior (component) {\n  return component.tick || component.tock;\n}\n\n/**\n * Wrapper for user defined pause method\n * Pause component by removing tick behavior and calling user's pause method.\n *\n * @param pauseMethod {function} - user defined pause method\n */\nfunction wrapPause (pauseMethod) {\n  return function pause () {\n    var sceneEl = this.el.sceneEl;\n    if (!this.isPlaying) { return; }\n    pauseMethod.call(this);\n    this.isPlaying = false;\n    // Remove tick behavior.\n    if (!hasBehavior(this)) { return; }\n    sceneEl.removeBehavior(this);\n  };\n}\n\n/**\n * Wrapper for user defined play method\n * Play component by adding tick behavior and calling user's play method.\n *\n * @param playMethod {function} - user defined play method\n *\n */\nfunction wrapPlay (playMethod) {\n  return function play () {\n    var sceneEl = this.el.sceneEl;\n    var shouldPlay = this.el.isPlaying && !this.isPlaying;\n    if (!this.initialized || !shouldPlay) { return; }\n    playMethod.call(this);\n    this.isPlaying = true;\n    // Add tick behavior.\n    if (!hasBehavior(this)) { return; }\n    sceneEl.addBehavior(this);\n  };\n}\n\nfunction isObjectOrArray (value) {\n  return value && (value.constructor === Object || value.constructor === Array);\n}\n","var schema = require('./schema');\n\nvar processSchema = schema.process;\nvar geometries = module.exports.geometries = {};  // Registered geometries.\nvar geometryNames = module.exports.geometryNames = [];  // Names of registered geometries.\nvar THREE = require('../lib/three');\n\n/**\n * Geometry class definition.\n *\n * Geometries extend the geometry component API to create and register geometry types.\n */\nvar Geometry = module.exports.Geometry = function () {};\n\nGeometry.prototype = {\n  /**\n   * Contains the type schema and defaults for the data values.\n   * Data is coerced into the types of the values of the defaults.\n   */\n  schema: {},\n\n  /**\n   * Init handler. Similar to attachedCallback.\n   * Called during shader initialization and is only run once.\n   */\n  init: function (data) {\n    this.geometry = new THREE.Geometry();\n    return this.geometry;\n  },\n\n  /**\n   * Update handler. Similar to attributeChangedCallback.\n   * Called whenever the associated geometry data changes.\n   *\n   * @param {object} data - New geometry data.\n   */\n  update: function (data) { /* no-op */ }\n};\n\n/**\n * Registers a geometry to A-Frame.\n *\n * @param {string} name - Geometry name.\n * @param {object} definition - Geometry property and methods.\n * @returns {object} Geometry.\n */\nmodule.exports.registerGeometry = function (name, definition) {\n  var NewGeometry;\n  var proto = {};\n\n  // Format definition object to prototype object.\n  Object.keys(definition).forEach(function expandDefinition (key) {\n    proto[key] = {\n      value: definition[key],\n      writable: true\n    };\n  });\n\n  if (geometries[name]) {\n    throw new Error('The geometry `' + name + '` has been already registered');\n  }\n  NewGeometry = function () { Geometry.call(this); };\n  NewGeometry.prototype = Object.create(Geometry.prototype, proto);\n  NewGeometry.prototype.name = name;\n  NewGeometry.prototype.constructor = NewGeometry;\n  geometries[name] = {\n    Geometry: NewGeometry,\n    schema: processSchema(NewGeometry.prototype.schema)\n  };\n  geometryNames.push(name);\n  return NewGeometry;\n};\n","var coordinates = require('../utils/coordinates');\nvar debug = require('debug');\n\nvar error = debug('core:propertyTypes:warn');\nvar warn = debug('core:propertyTypes:warn');\n\nvar propertyTypes = module.exports.propertyTypes = {};\nvar nonCharRegex = /[,> .[\\]:]/;\n\n// Built-in property types.\nregisterPropertyType('audio', '', assetParse);\nregisterPropertyType('array', [], arrayParse, arrayStringify);\nregisterPropertyType('asset', '', assetParse);\nregisterPropertyType('boolean', false, boolParse);\nregisterPropertyType('color', '#FFF', defaultParse, defaultStringify);\nregisterPropertyType('int', 0, intParse);\nregisterPropertyType('number', 0, numberParse);\nregisterPropertyType('map', '', assetParse);\nregisterPropertyType('model', '', assetParse);\nregisterPropertyType('selector', null, selectorParse, selectorStringify);\nregisterPropertyType('selectorAll', null, selectorAllParse, selectorAllStringify);\nregisterPropertyType('src', '', srcParse);\nregisterPropertyType('string', '', defaultParse, defaultStringify);\nregisterPropertyType('time', 0, intParse);\nregisterPropertyType('vec2', {x: 0, y: 0}, vecParse, coordinates.stringify);\nregisterPropertyType('vec3', {x: 0, y: 0, z: 0}, vecParse, coordinates.stringify);\nregisterPropertyType('vec4', {x: 0, y: 0, z: 0, w: 0}, vecParse, coordinates.stringify);\n\n/**\n * Register a parser for re-use such that when someone uses `type` in the schema,\n * `schema.process` will set the property `parse` and `stringify`.\n *\n * @param {string} type - Type name.\n * @param [defaultValue=null] -\n *   Default value to use if component does not define default value.\n * @param {function} [parse=defaultParse] - Parse string function.\n * @param {function} [stringify=defaultStringify] - Stringify to DOM function.\n */\nfunction registerPropertyType (type, defaultValue, parse, stringify) {\n  if ('type' in propertyTypes) {\n    error('Property type ' + type + ' is already registered.');\n    return;\n  }\n\n  propertyTypes[type] = {\n    default: defaultValue,\n    parse: parse || defaultParse,\n    stringify: stringify || defaultStringify\n  };\n}\nmodule.exports.registerPropertyType = registerPropertyType;\n\nfunction arrayParse (value) {\n  if (Array.isArray(value)) { return value; }\n  if (!value || typeof value !== 'string') { return []; }\n  return value.split(',').map(trim);\n  function trim (str) { return str.trim(); }\n}\n\nfunction arrayStringify (value) {\n  return value.join(', ');\n}\n\n/**\n * For general assets.\n *\n * @param {string} value - Can either be `url(<value>)`, an ID selector to an asset, or\n *   just string.\n * @returns {string} Parsed value from `url(<value>)`, src from `<someasset src>`, or\n *   just string.\n */\nfunction assetParse (value) {\n  var el;\n  var parsedUrl;\n\n  // If an element was provided (e.g. canvas or video), just return it.\n  if (typeof value !== 'string') { return value; }\n\n  // Wrapped `url()` in case of data URI.\n  parsedUrl = value.match(/\\url\\((.+)\\)/);\n  if (parsedUrl) { return parsedUrl[1]; }\n\n  // ID.\n  if (value.charAt(0) === '#') {\n    el = document.getElementById(value.substring(1));\n    if (el) {\n      // Pass through media elements. If we have the elements, we don't have to call\n      // three.js loaders which would re-request the assets.\n      if (el.tagName === 'CANVAS' || el.tagName === 'VIDEO' || el.tagName === 'IMG') {\n        return el;\n      }\n      return el.getAttribute('src');\n    }\n    warn('\"' + value + '\" asset not found.');\n    return;\n  }\n\n  // Non-wrapped url().\n  return value;\n}\n\nfunction defaultParse (value) {\n  return value;\n}\n\nfunction defaultStringify (value) {\n  if (value === null) { return 'null'; }\n  return value.toString();\n}\n\nfunction boolParse (value) {\n  return value !== 'false' && value !== false;\n}\n\nfunction intParse (value) {\n  return parseInt(value, 10);\n}\n\nfunction numberParse (value) {\n  return parseFloat(value, 10);\n}\n\nfunction selectorParse (value) {\n  if (!value) { return null; }\n  if (typeof value !== 'string') { return value; }\n  if (value[0] === '#' && !nonCharRegex.test(value)) {\n    // When selecting element by ID only, use getElementById for better performance.\n    // Don't match like #myId .child.\n    return document.getElementById(value.substring(1));\n  }\n  return document.querySelector(value);\n}\n\nfunction selectorAllParse (value) {\n  if (!value) { return null; }\n  if (typeof value !== 'string') { return value; }\n  return Array.prototype.slice.call(document.querySelectorAll(value), 0);\n}\n\nfunction selectorStringify (value) {\n  if (value.getAttribute) {\n    return '#' + value.getAttribute('id');\n  }\n  return defaultStringify(value);\n}\n\nfunction selectorAllStringify (value) {\n  if (value instanceof Array) {\n    return value.map(function (element) {\n      return '#' + element.getAttribute('id');\n    }).join(', ');\n  }\n  return defaultStringify(value);\n}\n\nfunction srcParse (value) {\n  warn('`src` property type is deprecated. Use `asset` instead.');\n  return assetParse(value);\n}\n\nfunction vecParse (value) {\n  return coordinates.parse(value, this.default);\n}\n\n/**\n * Validate the default values in a schema to match their type.\n *\n * @param {string} type - Property type name.\n * @param defaultVal - Property type default value.\n * @returns {boolean} Whether default value is accurate given the type.\n */\nfunction isValidDefaultValue (type, defaultVal) {\n  if (type === 'audio' && typeof defaultVal !== 'string') { return false; }\n  if (type === 'array' && !Array.isArray(defaultVal)) { return false; }\n  if (type === 'asset' && typeof defaultVal !== 'string') { return false; }\n  if (type === 'boolean' && typeof defaultVal !== 'boolean') { return false; }\n  if (type === 'color' && typeof defaultVal !== 'string') { return false; }\n  if (type === 'int' && typeof defaultVal !== 'number') { return false; }\n  if (type === 'number' && typeof defaultVal !== 'number') { return false; }\n  if (type === 'map' && typeof defaultVal !== 'string') { return false; }\n  if (type === 'model' && typeof defaultVal !== 'string') { return false; }\n  if (type === 'selector' && typeof defaultVal !== 'string' &&\n      defaultVal !== null) { return false; }\n  if (type === 'selectorAll' && typeof defaultVal !== 'string' &&\n      defaultVal !== null) { return false; }\n  if (type === 'src' && typeof defaultVal !== 'string') { return false; }\n  if (type === 'string' && typeof defaultVal !== 'string') { return false; }\n  if (type === 'time' && typeof defaultVal !== 'number') { return false; }\n  if (type === 'vec2') { return isValidDefaultCoordinate(defaultVal, 2); }\n  if (type === 'vec3') { return isValidDefaultCoordinate(defaultVal, 3); }\n  if (type === 'vec4') { return isValidDefaultCoordinate(defaultVal, 4); }\n  return true;\n}\nmodule.exports.isValidDefaultValue = isValidDefaultValue;\n\n/**\n * Checks if default coordinates are valid.\n *\n * @param possibleCoordinates\n * @param {number} dimensions - 2 for 2D Vector, 3 for 3D vector.\n * @returns {boolean} Whether coordinates are parsed correctly.\n */\nfunction isValidDefaultCoordinate (possibleCoordinates, dimensions) {\n  if (possibleCoordinates === null) { return true; }\n  if (typeof possibleCoordinates !== 'object') { return false; }\n\n  if (Object.keys(possibleCoordinates).length !== dimensions) {\n    return false;\n  } else {\n    var x = possibleCoordinates.x;\n    var y = possibleCoordinates.y;\n    var z = possibleCoordinates.z;\n    var w = possibleCoordinates.w;\n\n    if (typeof x !== 'number' || typeof y !== 'number') { return false; }\n    if (dimensions > 2 && typeof z !== 'number') { return false; }\n    if (dimensions > 3 && typeof w !== 'number') { return false; }\n  }\n\n  return true;\n}\nmodule.exports.isValidDefaultCoordinate = isValidDefaultCoordinate;\n","/* global Promise, screen */\nvar initMetaTags = require('./metaTags').inject;\nvar initWakelock = require('./wakelock');\nvar re = require('../a-register-element');\nvar scenes = require('./scenes');\nvar systems = require('../system').systems;\nvar THREE = require('../../lib/three');\nvar TWEEN = require('@tweenjs/tween.js');\nvar utils = require('../../utils/');\n// Require after.\nvar AEntity = require('../a-entity');\nvar ANode = require('../a-node');\nvar initPostMessageAPI = require('./postMessage');\n\nvar bind = utils.bind;\nvar isIOS = utils.device.isIOS();\nvar isMobile = utils.device.isMobile();\nvar registerElement = re.registerElement;\nvar warn = utils.debug('core:a-scene:warn');\n\n/**\n * Scene element, holds all entities.\n *\n * @member {number} animationFrameID\n * @member {array} behaviors - Component instances that have registered themselves to be\n           updated on every tick.\n * @member {object} camera - three.js Camera object.\n * @member {object} canvas\n * @member {bool} isScene - Differentiates as scene entity as opposed to other entites.\n * @member {bool} isMobile - Whether browser is mobile (via UA detection).\n * @member {object} object3D - Root three.js Scene object.\n * @member {object} renderer\n * @member {bool} renderStarted\n * @member {object} effect - three.js VREffect\n * @member {object} systems - Registered instantiated systems.\n * @member {number} time\n */\nmodule.exports.AScene = registerElement('a-scene', {\n  prototype: Object.create(AEntity.prototype, {\n    defaultComponents: {\n      value: {\n        'inspector': '',\n        'keyboard-shortcuts': '',\n        'screenshot': '',\n        'vr-mode-ui': ''\n      }\n    },\n\n    createdCallback: {\n      value: function () {\n        this.isIOS = isIOS;\n        this.isMobile = isMobile;\n        this.isScene = true;\n        this.object3D = new THREE.Scene();\n        this.render = bind(this.render, this);\n        this.systems = {};\n        this.systemNames = [];\n        this.time = 0;\n        this.init();\n      }\n    },\n\n    init: {\n      value: function () {\n        this.behaviors = {tick: [], tock: []};\n        this.hasLoaded = false;\n        this.isPlaying = false;\n        this.originalHTML = this.innerHTML;\n        this.renderTarget = null;\n        setupCanvas(this);\n        this.setupRenderer();\n        this.resize();\n        this.addFullScreenStyles();\n        initPostMessageAPI(this);\n      },\n      writable: true\n    },\n\n    addFullScreenStyles: {\n      value: function () {\n        var htmlEl = document.documentElement;\n        htmlEl.classList.add('a-html');\n        document.body.classList.add('a-body');\n        this.classList.add('fullscreen');\n      }\n    },\n\n    removeFullScreenStyles: {\n      value: function () {\n        var htmlEl = document.documentElement;\n        htmlEl.classList.remove('a-html');\n        document.body.classList.remove('a-body');\n        this.classList.remove('fullscreen');\n      }\n    },\n\n    attachedCallback: {\n      value: function () {\n        var resize;\n        var self = this;\n\n        initMetaTags(this);\n        initWakelock(this);\n        this.initSystems();\n\n        resize = bind(this.resize, this);\n        window.addEventListener('load', resize);\n        window.addEventListener('resize', resize);\n        this.play();\n\n        // Add to scene index.\n        scenes.push(this);\n\n        // Handler to exit VR (e.g., Oculus Browser back button).\n        this.onVRPresentChangeBound = bind(this.onVRPresentChange, this);\n        window.addEventListener('vrdisplaypresentchange', this.onVRPresentChangeBound);\n\n        // bind functions\n        this.enterVRBound = function () { self.enterVR(); };\n        this.exitVRBound = function () { self.exitVR(); };\n        this.exitVRTrueBound = function () { self.exitVR(true); };\n        this.pointerRestrictedBound = function () { self.pointerRestricted(); };\n        this.pointerUnrestrictedBound = function () { self.pointerUnrestricted(); };\n\n        // Enter VR on `vrdisplayactivate` (e.g. putting on Rift headset).\n        window.addEventListener('vrdisplayactivate', this.enterVRBound);\n\n        // Exit VR on `vrdisplaydeactivate` (e.g. taking off Rift headset).\n        window.addEventListener('vrdisplaydeactivate', this.exitVRBound);\n\n        // Exit VR on `vrdisplaydisconnect` (e.g. unplugging Rift headset).\n        window.addEventListener('vrdisplaydisconnect', this.exitVRTrueBound);\n\n        // Register for mouse restricted events while in VR\n        // (e.g. mouse no longer available on desktop 2D view)\n        window.addEventListener('vrdisplaypointerrestricted', this.pointerRestrictedBound);\n\n        // Register for mouse unrestricted events while in VR\n        // (e.g. mouse once again available on desktop 2D view)\n        window.addEventListener('vrdisplaypointerunrestricted', this.pointerUnrestrictedBound);\n      },\n      writable: window.debug\n    },\n\n    /**\n     * Initialize all systems.\n     */\n    initSystems: {\n      value: function () {\n        Object.keys(systems).forEach(bind(this.initSystem, this));\n      }\n    },\n\n    /**\n     * Initialize a system.\n     */\n    initSystem: {\n      value: function (name) {\n        if (this.systems[name]) { return; }\n        this.systems[name] = new systems[name](this);\n        this.systemNames.push(name);\n      }\n    },\n\n    /**\n     * Shut down scene on detach.\n     */\n    detachedCallback: {\n      value: function () {\n        var sceneIndex;\n\n        if (this.effect && this.effect.cancelAnimationFrame) {\n          this.effect.cancelAnimationFrame(this.animationFrameID);\n        } else {\n          window.cancelAnimationFrame(this.animationFrameID);\n        }\n        this.animationFrameID = null;\n\n        // Remove from scene index.\n        sceneIndex = scenes.indexOf(this);\n        scenes.splice(sceneIndex, 1);\n\n        window.removeEventListener('vrdisplaypresentchange', this.onVRPresentChangeBound);\n        window.removeEventListener('vrdisplayactivate', this.enterVRBound);\n        window.removeEventListener('vrdisplaydeactivate', this.exitVRBound);\n        window.removeEventListener('vrdisplayconnect', this.enterVRBound);\n        window.removeEventListener('vrdisplaydisconnect', this.exitVRTrueBound);\n        window.removeEventListener('vrdisplaypointerrestricted', this.pointerRestrictedBound);\n        window.removeEventListener('vrdisplaypointerunrestricted', this.pointerUnrestrictedBound);\n      }\n    },\n\n    /**\n     * Add ticks and tocks.\n     *\n     * @param {object} behavior - A component.\n     */\n    addBehavior: {\n      value: function (behavior) {\n        var behaviorArr;\n        var behaviors = this.behaviors;\n        var behaviorType;\n\n        // Check if behavior has tick and/or tock and add the behavior to the appropriate list.\n        for (behaviorType in behaviors) {\n          if (!behavior[behaviorType]) { continue; }\n          behaviorArr = this.behaviors[behaviorType];\n          if (behaviorArr.indexOf(behavior) === -1) {\n            behaviorArr.push(behavior);\n          }\n        }\n      }\n    },\n\n    /**\n     * For tests.\n     */\n    getPointerLockElement: {\n      value: function () {\n        return document.pointerLockElement;\n      },\n      writable: window.debug\n    },\n\n    /**\n     * For tests.\n     */\n    checkHeadsetConnected: {\n      value: utils.device.checkHeadsetConnected,\n      writable: window.debug\n    },\n\n    /**\n     * Call `requestPresent` if WebVR or WebVR polyfill.\n     * Call `requestFullscreen` on desktop.\n     * Handle events, states, fullscreen styles.\n     *\n     * @param {bool} fromExternal - Whether exiting VR due to an external event (e.g.,\n     *   manually calling requestPresent via WebVR API directly).\n     * @returns {Promise}\n     */\n    enterVR: {\n      value: function (fromExternal) {\n        var self = this;\n        var effect = this.effect;\n\n        // Don't enter VR if already in VR.\n        if (this.is('vr-mode')) { return Promise.resolve('Already in VR.'); }\n\n        // Enter VR via WebVR API.\n        if (!fromExternal && (this.checkHeadsetConnected() || this.isMobile)) {\n          return effect && effect.requestPresent().then(enterVRSuccess, enterVRFailure) || Promise.reject(new Error('VREffect not initialized'));\n        }\n\n        // Either entered VR already via WebVR API or VR not supported.\n        enterVRSuccess();\n        return Promise.resolve();\n\n        function enterVRSuccess () {\n          self.addState('vr-mode');\n          self.emit('enter-vr', {target: self});\n\n          // Lock to landscape orientation on mobile.\n          if (self.isMobile && screen.orientation && screen.orientation.lock) {\n            screen.orientation.lock('landscape');\n          }\n          self.addFullScreenStyles();\n\n          // On mobile, the polyfill handles fullscreen.\n          // TODO: 07/16 Chromium builds break when `requestFullscreen`ing on a canvas\n          // that we are also `requestPresent`ing. Until then, don't fullscreen if headset\n          // connected.\n          if (!self.isMobile && !self.checkHeadsetConnected()) {\n            requestFullscreen(self.canvas);\n          }\n          self.resize();\n        }\n\n        function enterVRFailure (err) {\n          if (err && err.message) {\n            throw new Error('Failed to enter VR mode (`requestPresent`): ' + err.message);\n          } else {\n            throw new Error('Failed to enter VR mode (`requestPresent`).');\n          }\n        }\n      },\n      writable: window.debug\n    },\n     /**\n     * Call `exitPresent` if WebVR or WebVR polyfill.\n     * Handle events, states, fullscreen styles.\n     *\n     * @param {bool} fromExternal - Whether exiting VR due to an external event (e.g.,\n     *   Oculus Browser GearVR back button).\n     * @returns {Promise}\n     */\n    exitVR: {\n      value: function (fromExternal) {\n        var self = this;\n\n        // Don't exit VR if not in VR.\n        if (!this.is('vr-mode')) { return Promise.resolve('Not in VR.'); }\n\n        exitFullscreen();\n\n        // Handle exiting VR if not yet already and in a headset or polyfill.\n        if (!fromExternal && (this.checkHeadsetConnected() || this.isMobile)) {\n          return this.effect.exitPresent().then(exitVRSuccess, exitVRFailure);\n        }\n\n        // Handle exiting VR in all other cases (2D fullscreen, external exit VR event).\n        exitVRSuccess();\n\n        return Promise.resolve();\n\n        function exitVRSuccess () {\n          self.removeState('vr-mode');\n          // Lock to landscape orientation on mobile.\n          if (self.isMobile && screen.orientation && screen.orientation.unlock) {\n            screen.orientation.unlock();\n          }\n          // Exiting VR in embedded mode, no longer need fullscreen styles.\n          if (self.hasAttribute('embedded')) { self.removeFullScreenStyles(); }\n          self.resize();\n          if (self.isIOS) { utils.forceCanvasResizeSafariMobile(this.canvas); }\n          self.emit('exit-vr', {target: self});\n        }\n\n        function exitVRFailure (err) {\n          if (err && err.message) {\n            throw new Error('Failed to exit VR mode (`exitPresent`): ' + err.message);\n          } else {\n            throw new Error('Failed to exit VR mode (`exitPresent`).');\n          }\n        }\n      },\n      writable: window.debug\n    },\n\n    pointerRestricted: {\n      value: function () {\n        if (this.canvas) {\n          var pointerLockElement = this.getPointerLockElement();\n          if (pointerLockElement && pointerLockElement !== this.canvas && document.exitPointerLock) {\n            // Recreate pointer lock on the canvas, if taken on another element.\n            document.exitPointerLock();\n          }\n\n          if (this.canvas.requestPointerLock) {\n            this.canvas.requestPointerLock();\n          }\n        }\n      }\n    },\n\n    pointerUnrestricted: {\n      value: function () {\n        var pointerLockElement = this.getPointerLockElement();\n        if (pointerLockElement && pointerLockElement === this.canvas && document.exitPointerLock) {\n          document.exitPointerLock();\n        }\n      }\n    },\n\n    /**\n     * Handle `vrdisplaypresentchange` event for exiting VR through other means than\n     * `<ESC>` key. For example, GearVR back button on Oculus Browser.\n     */\n    onVRPresentChange: {\n      value: function (evt) {\n        // Polyfill places display inside the detail property\n        var display = evt.display || evt.detail.display;\n        // Entering VR.\n        if (display.isPresenting) {\n          this.enterVR(true);\n          return;\n        }\n        // Exiting VR.\n        this.exitVR(true);\n      }\n    },\n\n    /**\n     * Wraps Entity.getAttribute to take into account for systems.\n     * If system exists, then return system data rather than possible component data.\n     */\n    getAttribute: {\n      value: function (attr) {\n        var system = this.systems[attr];\n        if (system) { return system.data; }\n        return AEntity.prototype.getAttribute.call(this, attr);\n      }\n    },\n\n    /**\n     * `getAttribute` used to be `getDOMAttribute` and `getComputedAttribute` used to be\n     * what `getAttribute` is now. Now legacy code.\n     */\n    getComputedAttribute: {\n      value: function (attr) {\n        warn('`getComputedAttribute` is deprecated. Use `getAttribute` instead.');\n        this.getAttribute(attr);\n      }\n    },\n\n    /**\n     * Wraps Entity.getDOMAttribute to take into account for systems.\n     * If system exists, then return system data rather than possible component data.\n     */\n    getDOMAttribute: {\n      value: function (attr) {\n        var system = this.systems[attr];\n        if (system) { return system.data; }\n        return AEntity.prototype.getDOMAttribute.call(this, attr);\n      }\n    },\n\n    /**\n     * Wrap Entity.setAttribute to take into account for systems.\n     * If system exists, then skip component initialization checks and do a normal\n     * setAttribute.\n     */\n    setAttribute: {\n      value: function (attr, value, componentPropValue) {\n        var system = this.systems[attr];\n        if (system) {\n          ANode.prototype.setAttribute.call(this, attr, value);\n          system.updateProperties(value);\n          return;\n        }\n        AEntity.prototype.setAttribute.call(this, attr, value, componentPropValue);\n      }\n    },\n\n    /**\n     * @param {object} behavior - A component.\n     */\n    removeBehavior: {\n      value: function (behavior) {\n        var behaviorArr;\n        var behaviorType;\n        var behaviors = this.behaviors;\n        var index;\n\n        // Check if behavior has tick and/or tock and remove the behavior from the appropriate array.\n        for (behaviorType in behaviors) {\n          if (!behavior[behaviorType]) { continue; }\n          behaviorArr = this.behaviors[behaviorType];\n          index = behaviorArr.indexOf(behavior);\n          if (index !== -1) { behaviorArr.splice(index, 1); }\n        }\n      }\n    },\n\n    resize: {\n      value: function () {\n        var camera = this.camera;\n        var canvas = this.canvas;\n        var embedded = this.getAttribute('embedded') && !this.is('vr-mode');\n        var size;\n        var isEffectPresenting = this.effect && this.effect.isPresenting;\n        // Do not update renderer, if a camera or a canvas have not been injected.\n        // In VR mode, VREffect handles canvas resize based on the dimensions returned by\n        // the getEyeParameters function of the WebVR API. These dimensions are independent of\n        // the window size, therefore should not be overwritten with the window's width and height,\n        // except when in fullscreen mode.\n        if (!camera || !canvas || (this.is('vr-mode') && (this.isMobile || isEffectPresenting))) { return; }\n        // Update camera.\n        size = getCanvasSize(canvas, embedded);\n        camera.aspect = size.width / size.height;\n        camera.updateProjectionMatrix();\n        // Notify renderer of size change.\n        this.renderer.setSize(size.width, size.height, false);\n      },\n      writable: window.debug\n    },\n\n    setupRenderer: {\n      value: function () {\n        var renderer;\n\n        renderer = this.renderer = new THREE.WebGLRenderer({\n          canvas: this.canvas,\n          antialias: shouldAntiAlias(this),\n          alpha: true\n        });\n        renderer.setPixelRatio(window.devicePixelRatio);\n        renderer.sortObjects = false;\n        this.effect = new THREE.VREffect(renderer);\n        this.effect.autoSubmitFrame = false;\n      },\n      writable: window.debug\n    },\n\n    /**\n     * Handler attached to elements to help scene know when to kick off.\n     * Scene waits for all entities to load.\n     */\n    play: {\n      value: function () {\n        var self = this;\n        if (this.renderStarted) {\n          AEntity.prototype.play.call(this);\n          return;\n        }\n\n        this.addEventListener('loaded', function () {\n          AEntity.prototype.play.call(this);  // .play() *before* render.\n\n          // Wait for camera if necessary before rendering.\n          if (this.camera) {\n            startRender(this);\n            return;\n          }\n          this.addEventListener('camera-set-active', function () { startRender(this); });\n\n          function startRender (sceneEl) {\n            if (sceneEl.renderStarted) { return; }\n\n            sceneEl.resize();\n\n            // Kick off render loop.\n            if (sceneEl.renderer) {\n              if (window.performance) {\n                window.performance.mark('render-started');\n              }\n              sceneEl.clock = new THREE.Clock();\n              sceneEl.render();\n              sceneEl.renderStarted = true;\n              sceneEl.emit('renderstart');\n            }\n          }\n        });\n\n        // setTimeout to wait for all nodes to attach and run their callbacks.\n        setTimeout(function () {\n          AEntity.prototype.load.call(self);\n        });\n      }\n    },\n\n    /**\n     * Wrap `updateComponent` to not initialize the component if the component has a system\n     * (aframevr/aframe#2365).\n     */\n    updateComponent: {\n      value: function (componentName) {\n        if (componentName in systems) { return; }\n        AEntity.prototype.updateComponent.apply(this, arguments);\n      }\n    },\n\n    /**\n     * Behavior-updater meant to be called from scene render.\n     * Abstracted to a different function to facilitate unit testing (`scene.tick()`) without\n     * needing to render.\n     */\n    tick: {\n      value: function (time, timeDelta) {\n        var i;\n        var systems = this.systems;\n\n        // Animations.\n        TWEEN.update();\n\n        // Components.\n        for (i = 0; i < this.behaviors.tick.length; i++) {\n          if (!this.behaviors.tick[i].el.isPlaying) { continue; }\n          this.behaviors.tick[i].tick(time, timeDelta);\n        }\n\n        // Systems.\n        for (i = 0; i < this.systemNames.length; i++) {\n          if (!systems[this.systemNames[i]].tick) { continue; }\n          systems[this.systemNames[i]].tick(time, timeDelta);\n        }\n      }\n    },\n\n    /**\n     * Behavior-updater meant to be called after scene render for post processing purposes.\n     * Abstracted to a different function to facilitate unit testing (`scene.tock()`) without\n     * needing to render.\n     */\n    tock: {\n      value: function (time, timeDelta) {\n        var i;\n        var systems = this.systems;\n\n        // Components.\n        for (i = 0; i < this.behaviors.tock.length; i++) {\n          if (!this.behaviors.tock[i].el.isPlaying) { continue; }\n          this.behaviors.tock[i].tock(time, timeDelta);\n        }\n\n        // Systems.\n        for (i = 0; i < this.systemNames.length; i++) {\n          if (!systems[this.systemNames[i]].tock) { continue; }\n          systems[this.systemNames[i]].tock(time, timeDelta);\n        }\n      }\n    },\n\n    /**\n     * The render loop.\n     *\n     * Updates animations.\n     * Updates behaviors.\n     * Renders with request animation frame.\n     */\n    render: {\n      value: function () {\n        var effect = this.effect;\n        var delta = this.clock.getDelta() * 1000;\n        this.time = this.clock.elapsedTime * 1000;\n\n        if (this.isPlaying) { this.tick(this.time, delta); }\n\n        this.animationFrameID = effect.requestAnimationFrame(this.render);\n        effect.render(this.object3D, this.camera, this.renderTarget);\n\n        if (this.isPlaying) { this.tock(this.time, delta); }\n\n        this.effect.submitFrame();\n      },\n      writable: true\n    }\n  })\n});\n\n/**\n * Return the canvas size where the scene will be rendered\n * It will be always the window size except when the scene\n * is embedded. The parent size will be returned in that case\n *\n * @param {object} canvasEl - the canvas element\n * @param {boolean} embedded - Is the scene embedded?\n */\nfunction getCanvasSize (canvasEl, embedded) {\n  if (embedded) {\n    return {\n      height: canvasEl.parentElement.offsetHeight,\n      width: canvasEl.parentElement.offsetWidth\n    };\n  }\n  return {\n    height: window.innerHeight,\n    width: window.innerWidth\n  };\n}\n\nfunction requestFullscreen (canvas) {\n  var requestFullscreen =\n    canvas.requestFullscreen ||\n    canvas.webkitRequestFullscreen ||\n    canvas.mozRequestFullScreen ||  // The capitalized `S` is not a typo.\n    canvas.msRequestFullscreen;\n  requestFullscreen.apply(canvas);\n}\n\nfunction exitFullscreen () {\n  if (document.exitFullscreen) {\n    document.exitFullscreen();\n  } else if (document.mozCancelFullScreen) {\n    document.mozCancelFullScreen();\n  } else if (document.webkitExitFullscreen) {\n    document.webkitExitFullscreen();\n  }\n}\n\n/**\n * Determines if renderer anti-aliasing should be enabled.\n * Enabled by default if has native WebVR or is desktop.\n *\n * @returns {bool}\n */\nfunction shouldAntiAlias (sceneEl) {\n  // Explicitly set.\n  if (sceneEl.getAttribute('antialias') !== null) {\n    return sceneEl.getAttribute('antialias') === 'true';\n  }\n\n  // Default not AA for mobile.\n  return !sceneEl.isMobile;\n}\nmodule.exports.shouldAntiAlias = shouldAntiAlias;  // For testing.\n\nfunction setupCanvas (sceneEl) {\n  var canvasEl;\n\n  canvasEl = document.createElement('canvas');\n  canvasEl.classList.add('a-canvas');\n  // Mark canvas as provided/injected by A-Frame.\n  canvasEl.dataset.aframeCanvas = true;\n  sceneEl.appendChild(canvasEl);\n\n  document.addEventListener('fullscreenchange', onFullScreenChange);\n  document.addEventListener('mozfullscreenchange', onFullScreenChange);\n  document.addEventListener('webkitfullscreenchange', onFullScreenChange);\n\n  // Prevent overscroll on mobile.\n  canvasEl.addEventListener('touchmove', function (event) { event.preventDefault(); });\n\n  // Set canvas on scene.\n  sceneEl.canvas = canvasEl;\n  sceneEl.emit('render-target-loaded', {target: canvasEl});\n  // For unknown reasons a synchronous resize does not work on desktop when\n  // entering/exiting fullscreen.\n  setTimeout(bind(sceneEl.resize, sceneEl), 0);\n\n  function onFullScreenChange () {\n    var fullscreenEl =\n      document.fullscreenElement ||\n      document.mozFullScreenElement ||\n      document.webkitFullscreenElement;\n    // No fullscren element === exit fullscreen\n    if (!fullscreenEl) { sceneEl.exitVR(); }\n    document.activeElement.blur();\n    document.body.focus();\n  }\n}\nmodule.exports.setupCanvas = setupCanvas;  // For testing.\n","var constants = require('../../constants/');\nvar extend = require('../../utils').extend;\n\nvar MOBILE_HEAD_TAGS = module.exports.MOBILE_HEAD_TAGS = [\n  Meta({name: 'viewport', content: 'width=device-width,initial-scale=1,maximum-scale=1,shrink-to-fit=no,user-scalable=no,minimal-ui'}),\n\n  // W3C-standardised meta tags.\n  Meta({name: 'mobile-web-app-capable', content: 'yes'}),\n  Meta({name: 'theme-color', content: 'black'})\n];\n\nvar MOBILE_IOS_HEAD_TAGS = [\n  // iOS-specific meta tags for fullscreen when pinning to homescreen.\n  Meta({name: 'apple-mobile-web-app-capable', content: 'yes'}),\n  Meta({name: 'apple-mobile-web-app-status-bar-style', content: 'black'}),\n  Link({rel: 'apple-touch-icon', href: 'https://aframe.io/images/aframe-logo-152.png'})\n];\n\nfunction Meta (attrs) {\n  return {\n    tagName: 'meta',\n    attributes: attrs,\n    exists: function () { return document.querySelector('meta[name=\"' + attrs.name + '\"]'); }\n  };\n}\n\nfunction Link (attrs) {\n  return {\n    tagName: 'link',\n    attributes: attrs,\n    exists: function () { return document.querySelector('link[rel=\"' + attrs.rel + '\"]'); }\n  };\n}\n\n/**\n * Injects the necessary metatags in the document for mobile support:\n * 1. Prevent the user to zoom in the document.\n * 2. Ensure that window.innerWidth and window.innerHeight have the correct\n *    values and the canvas is properly scaled.\n * 3. To allow fullscreen mode when pinning a web app on the home screen on\n *    iOS.\n * Adapted from https://www.reddit.com/r/web_design/comments/3la04p/\n *\n * @param {object} scene - Scene element\n * @returns {Array}\n */\nmodule.exports.inject = function injectHeadTags (scene) {\n  var headEl = document.head;\n  var headScriptEl = headEl.querySelector('script');\n  var tag;\n  var headTags = [];\n  MOBILE_HEAD_TAGS.forEach(createAndInjectTag);\n  if (scene.isIOS) {\n    MOBILE_IOS_HEAD_TAGS.forEach(createAndInjectTag);\n  }\n  return headTags;\n\n  function createAndInjectTag (tagObj) {\n    if (!tagObj || tagObj.exists()) { return; }\n\n    tag = createTag(tagObj);\n    if (!tag) { return; }\n\n    if (headScriptEl) {\n      headScriptEl.parentNode.insertBefore(tag, headScriptEl);\n    } else {\n      headEl.appendChild(tag);\n    }\n\n    headTags.push(tag);\n  }\n};\n\nfunction createTag (tagObj) {\n  if (!tagObj || !tagObj.tagName) { return; }\n  var meta = document.createElement(tagObj.tagName);\n  meta.setAttribute(constants.AFRAME_INJECTED, '');\n  return extend(meta, tagObj.attributes);\n}\n","var bind = require('../../utils/bind');\nvar isIframed = require('../../utils/').isIframed;\n\n/**\n * Provides a post message API for scenes contained\n * in an iframe.\n */\nmodule.exports = function initPostMessageAPI (scene) {\n  // Handles fullscreen behavior when inside an iframe.\n  if (!isIframed()) { return; }\n  // postMessage API handler\n  window.addEventListener('message', bind(postMessageAPIHandler, scene));\n};\n\nfunction postMessageAPIHandler (event) {\n  var scene = this;\n  if (!event.data) { return; }\n\n  switch (event.data.type) {\n    case 'vr': {\n      switch (event.data.data) {\n        case 'enter':\n          scene.enterVR();\n          break;\n        case 'exit':\n          scene.exitVR();\n          break;\n      }\n    }\n  }\n}\n","/*\n  Scene index for keeping track of created scenes.\n*/\nmodule.exports = [];\n","var Wakelock = require('../../../vendor/wakelock/wakelock');\n\nmodule.exports = function initWakelock (scene) {\n  if (!scene.isMobile) { return; }\n\n  var wakelock = scene.wakelock = new Wakelock();\n  scene.addEventListener('enter-vr', function () { wakelock.request(); });\n  scene.addEventListener('exit-vr', function () { wakelock.release(); });\n};\n","var utils = require('../utils/');\nvar PropertyTypes = require('./propertyTypes');\n\nvar debug = utils.debug;\nvar isValidDefaultValue = PropertyTypes.isValidDefaultValue;\nvar propertyTypes = PropertyTypes.propertyTypes;\n\nvar warn = debug('core:schema:warn');\n\n/**\n * A schema is classified as a schema for a single property if:\n * - `type` is defined on the schema as a string.\n * - OR `default` is defined on the schema, as a reserved keyword.\n * - OR schema is empty.\n */\nfunction isSingleProperty (schema) {\n  if ('type' in schema) {\n    return typeof schema.type === 'string';\n  }\n  return 'default' in schema;\n}\nmodule.exports.isSingleProperty = isSingleProperty;\n\n/**\n * Build step to schema to use `type` to inject default value, parser, and stringifier.\n *\n * @param {object} schema\n * @param {string} componentName\n * @returns {object} Schema.\n */\nmodule.exports.process = function (schema, componentName) {\n  var propName;\n\n  // For single property schema, run processPropDefinition over the whole schema.\n  if (isSingleProperty(schema)) {\n    return processPropertyDefinition(schema, componentName);\n  }\n\n  // For multi-property schema, run processPropDefinition over each property definition.\n  for (propName in schema) {\n    schema[propName] = processPropertyDefinition(schema[propName], componentName);\n  }\n  return schema;\n};\n\n/**\n * Inject default value, parser, stringifier for single property.\n *\n * @param {object} propDefinition\n * @param {string} componentName\n */\nfunction processPropertyDefinition (propDefinition, componentName) {\n  var defaultVal = propDefinition.default;\n  var isCustomType;\n  var propType;\n  var typeName = propDefinition.type;\n\n  // Type inference.\n  if (!propDefinition.type) {\n    if (defaultVal !== undefined &&\n        (typeof defaultVal === 'boolean' || typeof defaultVal === 'number')) {\n      // Type inference.\n      typeName = typeof defaultVal;\n    } else if (Array.isArray(defaultVal)) {\n      typeName = 'array';\n    } else {\n      // Fall back to string.\n      typeName = 'string';\n    }\n  } else if (propDefinition.type === 'bool') {\n    typeName = 'boolean';\n  } else if (propDefinition.type === 'float') {\n    typeName = 'number';\n  }\n\n  propType = propertyTypes[typeName];\n  if (!propType) {\n    warn('Unknown property type for component `' + componentName + '`: ' + typeName);\n  }\n\n  // Fill in parse and stringify using property types.\n  isCustomType = !!propDefinition.parse;\n  propDefinition.parse = propDefinition.parse || propType.parse;\n  propDefinition.stringify = propDefinition.stringify || propType.stringify;\n\n  // Fill in type name.\n  propDefinition.type = typeName;\n\n  // Check that default value exists.\n  if ('default' in propDefinition) {\n    // Check that default values are valid.\n    if (!isCustomType && !isValidDefaultValue(typeName, defaultVal)) {\n      warn('Default value `' + defaultVal + '` does not match type `' + typeName +\n           '` in component `' + componentName + '`');\n    }\n  } else {\n    // Fill in default value.\n    propDefinition.default = propType.default;\n  }\n\n  return propDefinition;\n}\nmodule.exports.processPropertyDefinition = processPropertyDefinition;\n\n/**\n * Parse propData using schema. Use default values if not existing in propData.\n *\n * @param {object} propData - Unparsed properties.\n * @param {object} schema - Property types definition.\n * @param {boolean} getPartialData - Whether to return full component data or just the data\n *        with keys in `propData`.\n * @param {string } componentName - Name of the component, used for the property warning.\n * @param {boolean} silent - Suppress warning messages.\n */\nmodule.exports.parseProperties = (function () {\n  var propNames = [];\n\n  return function (propData, schema, getPartialData, componentName, silent) {\n    var i;\n    var propName;\n    var propDefinition;\n    var propValue;\n\n    propNames.length = 0;\n    for (propName in (getPartialData ? propData : schema)) { propNames.push(propName); }\n\n    if (propData === null || typeof propData !== 'object') { return propData; }\n\n    // Validation errors.\n    for (propName in propData) {\n      if (!schema[propName] && !silent) {\n        warn('Unknown property `' + propName +\n             '` for component/system `' + componentName + '`.');\n      }\n    }\n\n    for (i = 0; i < propNames.length; i++) {\n      propName = propNames[i];\n      propDefinition = schema[propName];\n      propValue = propData[propName];\n      if (!(schema[propName])) { return; }\n      propData[propName] = parseProperty(propValue, propDefinition);\n    }\n\n    return propData;\n  };\n})();\n\n/**\n * Deserialize a single property.\n */\nfunction parseProperty (value, propDefinition) {\n  // Use default value if value is falsy.\n  if (value === undefined || value === null || value === '') {\n    value = propDefinition.default;\n    if (Array.isArray(value)) { value = value.slice(); }\n  }\n  // Invoke property type parser.\n  return propDefinition.parse(value, propDefinition.default);\n}\nmodule.exports.parseProperty = parseProperty;\n\n/**\n * Serialize a group of properties.\n */\nmodule.exports.stringifyProperties = function (propData, schema) {\n  var propName;\n  var propDefinition;\n  var propValue;\n  var stringifiedData = {};\n  var value;\n\n  for (propName in propData) {\n    propDefinition = schema[propName];\n    propValue = propData[propName];\n    value = propValue;\n    if (typeof value === 'object') {\n      value = stringifyProperty(propValue, propDefinition);\n      if (!propDefinition) { warn('Unknown component property: ' + propName); }\n    }\n    stringifiedData[propName] = value;\n  }\n  return stringifiedData;\n};\n\n/**\n * Serialize a single property.\n */\nfunction stringifyProperty (value, propDefinition) {\n  // This function stringifies but it's used in a context where\n  // there's always second stringification pass. By returning the original\n  // value when it's not an object we save one unnecessary call\n  // to JSON.stringify.\n  if (typeof value !== 'object') { return value; }\n  // if there's no schema for the property we use standar JSON stringify\n  if (!propDefinition || value === null) { return JSON.stringify(value); }\n  return propDefinition.stringify(value);\n}\nmodule.exports.stringifyProperty = stringifyProperty;\n","var schema = require('./schema');\n\nvar processSchema = schema.process;\nvar shaders = module.exports.shaders = {};  // Keep track of registered shaders.\nvar shaderNames = module.exports.shaderNames = [];  // Keep track of the names of registered shaders.\nvar THREE = require('../lib/three');\nvar utils = require('../utils');\n\n// A-Frame properties to three.js uniform types.\nvar propertyToThreeMapping = {\n  array: 'v3',\n  color: 'v3',\n  int: 'i',\n  number: 'f',\n  map: 't',\n  time: 'f',\n  vec2: 'v2',\n  vec3: 'v3',\n  vec4: 'v4'\n};\n\n/**\n * Shader class definition.\n *\n * Shaders extend the material component API so you can create your own library\n * of customized materials\n *\n */\nvar Shader = module.exports.Shader = function () {};\n\nShader.prototype = {\n  /**\n   * Contains the type schema and defaults for the data values.\n   * Data is coerced into the types of the values of the defaults.\n   */\n  schema: {},\n\n  vertexShader:\n    'void main() {' +\n      'gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);' +\n    '}',\n\n  fragmentShader:\n    'void main() {' +\n      'gl_FragColor = vec4(1.0, 0.0, 1.0, 1.0);' +\n    '}',\n\n  /**\n   * Init handler. Similar to attachedCallback.\n   * Called during shader initialization and is only run once.\n   */\n  init: function (data) {\n    this.attributes = this.initVariables(data, 'attribute');\n    this.uniforms = this.initVariables(data, 'uniform');\n    this.material = new (this.raw ? THREE.RawShaderMaterial : THREE.ShaderMaterial)({\n      // attributes: this.attributes,\n      uniforms: this.uniforms,\n      vertexShader: this.vertexShader,\n      fragmentShader: this.fragmentShader\n    });\n    return this.material;\n  },\n\n  initVariables: function (data, type) {\n    var variables = {};\n    var schema = this.schema;\n    Object.keys(schema).forEach(function processSchema (key) {\n      if (schema[key].is !== type) { return; }\n      var varType = propertyToThreeMapping[schema[key].type];\n      variables[key] = {\n        type: varType,\n        value: undefined  // Let updateVariables handle setting these.\n      };\n    });\n    return variables;\n  },\n\n  /**\n   * Update handler. Similar to attributeChangedCallback.\n   * Called whenever the associated material data changes.\n   *\n   * @param {object} data - New material data.\n   */\n  update: function (data) {\n    this.updateVariables(data, 'attribute');\n    this.updateVariables(data, 'uniform');\n  },\n\n  updateVariables: function (data, type) {\n    var self = this;\n    var variables = type === 'uniform' ? this.uniforms : this.attributes;\n    var schema = this.schema;\n    Object.keys(data).forEach(function processData (key) {\n      var materialKey;\n      if (!schema[key] || schema[key].is !== type) { return; }\n\n      if (schema[key].type === 'map') {\n        // If data unchanged, get out early.\n        if (!variables[key] || variables[key].value === data[key]) { return; }\n\n        // Special handling is needed for textures.\n        materialKey = '_texture_' + key;\n\n        // We can't actually set the variable correctly until we've loaded the texture.\n        self.el.addEventListener('materialtextureloaded', function () {\n          variables[key].value = self.material[materialKey];\n          variables[key].needsUpdate = true;\n        });\n\n        // Kick off the texture update now that handler is added.\n        utils.material.updateMapMaterialFromData(materialKey, key, self, data);\n        return;\n      }\n      variables[key].value = self.parseValue(schema[key].type, data[key]);\n      variables[key].needsUpdate = true;\n    });\n  },\n\n  parseValue: function (type, value) {\n    var color;\n    switch (type) {\n      case 'vec2': {\n        return new THREE.Vector2(value.x, value.y);\n      }\n      case 'vec3': {\n        return new THREE.Vector3(value.x, value.y, value.z);\n      }\n      case 'vec4': {\n        return new THREE.Vector4(value.x, value.y, value.z, value.w);\n      }\n      case 'color': {\n        color = new THREE.Color(value);\n        return new THREE.Vector3(color.r, color.g, color.b);\n      }\n      case 'map': {\n        return THREE.ImageUtils.loadTexture(value);\n      }\n      default: {\n        return value;\n      }\n    }\n  }\n};\n\n/**\n * Registers a shader to A-Frame.\n *\n * @param {string} name - shader name.\n * @param {object} definition - shader property and methods.\n * @returns {object} Shader.\n */\nmodule.exports.registerShader = function (name, definition) {\n  var NewShader;\n  var proto = {};\n\n  // Format definition object to prototype object.\n  Object.keys(definition).forEach(function (key) {\n    proto[key] = {\n      value: definition[key],\n      writable: true\n    };\n  });\n\n  if (shaders[name]) {\n    throw new Error('The shader ' + name + ' has been already registered');\n  }\n  NewShader = function () { Shader.call(this); };\n  NewShader.prototype = Object.create(Shader.prototype, proto);\n  NewShader.prototype.name = name;\n  NewShader.prototype.constructor = NewShader;\n  shaders[name] = {\n    Shader: NewShader,\n    schema: processSchema(NewShader.prototype.schema)\n  };\n  shaderNames.push(name);\n  return NewShader;\n};\n","var components = require('./component');\nvar schema = require('./schema');\nvar utils = require('../utils/');\n\nvar parseProperties = schema.parseProperties;\nvar parseProperty = schema.parseProperty;\nvar processSchema = schema.process;\nvar isSingleProp = schema.isSingleProperty;\nvar styleParser = utils.styleParser;\n\nvar systems = module.exports.systems = {};  // Keep track of registered systems.\n\n/**\n * System class definition.\n *\n * Systems provide global scope and services to a group of instantiated components of the\n * same class. They can also help abstract logic away from components such that components\n * only have to worry about data.\n *\n * For example, a physics component that creates a physics world that oversees\n * all entities with a physics or rigid body component.\n *\n * TODO: Have the System prototype reuse the Component prototype. Most code is copied\n * and some pieces are missing from the Component facilities (e.g., attribute caching,\n * setAttribute behavior).\n *\n * @member {string} name - Name that system is registered under.\n * @member {Element} sceneEl - Handle to the scene element where system applies to.\n */\nvar System = module.exports.System = function (sceneEl) {\n  var component = components && components.components[this.name];\n\n  // Set reference to scene.\n  this.el = sceneEl;\n  this.sceneEl = sceneEl;\n\n  // Set reference to matching component (if exists).\n  if (component) { component.Component.prototype.system = this; }\n\n  // Process system configuration.\n  this.buildData();\n  this.init();\n  this.update({});\n};\n\nSystem.prototype = {\n  /**\n   * Schema to configure system.\n   */\n  schema: {},\n\n  /**\n   * Init handler. Called during scene initialization and is only run once.\n   * Systems can use this to set initial state.\n   */\n  init: function () { /* no-op */ },\n\n  /**\n   * Update handler. Called during scene attribute updates.\n   * Systems can use this to dynamically update their state.\n   */\n  update: function (oldData) { /* no-op */ },\n\n  /**\n   * Build data and call update handler.\n   *\n   * @private\n   */\n  updateProperties: function (rawData) {\n    var oldData = this.data;\n    if (!Object.keys(schema).length) { return; }\n    this.buildData(rawData);\n    this.update(oldData);\n  },\n\n  /**\n   * Parse data.\n   */\n  buildData: function (rawData) {\n    var schema = this.schema;\n    if (!Object.keys(schema).length) { return; }\n    rawData = rawData || window.HTMLElement.prototype.getAttribute.call(this.sceneEl, this.name);\n    if (isSingleProp(schema)) {\n      this.data = parseProperty(rawData, schema);\n    } else {\n      this.data = parseProperties(styleParser.parse(rawData) || {}, schema);\n    }\n  },\n\n  /**\n   * Tick handler.\n   * Called on each tick of the scene render loop.\n   * Affected by play and pause.\n   *\n   * @param {number} time - Scene tick time.\n   * @param {number} timeDelta - Difference in current render time and previous render time.\n   */\n  tick: undefined,\n\n  /**\n   * Tock handler.\n   * Called on each tock of the scene render loop.\n   * Affected by play and pause.\n   *\n   * @param {number} time - Scene tick time.\n   * @param {number} timeDelta - Difference in current render time and previous render time.\n   */\n  tock: undefined,\n\n  /**\n   * Called to start any dynamic behavior (e.g., animation, AI, events, physics).\n   */\n  play: function () { /* no-op */ },\n\n  /**\n   * Called to stop any dynamic behavior (e.g., animation, AI, events, physics).\n   */\n  pause: function () { /* no-op */ }\n};\n\n/**\n * Registers a system to A-Frame.\n *\n * @param {string} name - Component name.\n * @param {object} definition - Component property and methods.\n * @returns {object} Component.\n */\nmodule.exports.registerSystem = function (name, definition) {\n  var i;\n  var NewSystem;\n  var proto = {};\n  var scenes = utils.findAllScenes(document);\n\n  // Format definition object to prototype object.\n  Object.keys(definition).forEach(function (key) {\n    proto[key] = {\n      value: definition[key],\n      writable: true\n    };\n  });\n\n  if (systems[name]) {\n    throw new Error('The system `' + name + '` has been already registered. ' +\n                    'Check that you are not loading two versions of the same system ' +\n                    'or two different systems of the same name.');\n  }\n  NewSystem = function (sceneEl) { System.call(this, sceneEl); };\n  NewSystem.prototype = Object.create(System.prototype, proto);\n  NewSystem.prototype.name = name;\n  NewSystem.prototype.constructor = NewSystem;\n  NewSystem.prototype.schema = utils.extend(processSchema(NewSystem.prototype.schema));\n  systems[name] = NewSystem;\n\n  // Initialize systems for existing scenes\n  for (i = 0; i < scenes.length; i++) { scenes[i].initSystem(name); }\n};\n","require('./pivot');\n","var registerComponent = require('../../core/component').registerComponent;\nvar THREE = require('../../lib/three');\n\nvar originalPosition = new THREE.Vector3();\nvar originalRotation = new THREE.Vector3();\n\n/**\n * Wrap el.object3D within an outer group. Apply pivot to el.object3D as position.\n */\nregisterComponent('pivot', {\n  dependencies: ['position'],\n\n  schema: {type: 'vec3'},\n\n  init: function () {\n    var data = this.data;\n    var el = this.el;\n    var originalParent = el.object3D.parent;\n    var originalGroup = el.object3D;\n    var outerGroup = new THREE.Group();\n\n    originalPosition.copy(originalGroup.position);\n    originalRotation.copy(originalGroup.rotation);\n\n    // Detach current group from parent.\n    originalParent.remove(originalGroup);\n    outerGroup.add(originalGroup);\n\n    // Set new group as the outer group.\n    originalParent.add(outerGroup);\n\n    // Set outer group as new object3D.\n    el.object3D = outerGroup;\n\n    // Apply pivot to original group.\n    originalGroup.position.set(-1 * data.x, -1 * data.y, -1 * data.z);\n\n    // Offset the pivot so that world position not affected.\n    // And restore position onto outer group.\n    outerGroup.position.set(data.x + originalPosition.x, data.y + originalPosition.y,\n                            data.z + originalPosition.z);\n\n    // Transfer rotation to outer group.\n    outerGroup.rotation.copy(originalGroup.rotation);\n    originalGroup.rotation.set(0, 0, 0);\n  }\n});\n","/**\n * Common mesh defaults, mappings, and transforms.\n */\nvar components = require('../../core/component').components;\nvar shaders = require('../../core/shader').shaders;\nvar utils = require('../../utils/');\n\nvar materialMappings = {};\nObject.keys(components.material.schema).forEach(addMapping);\nObject.keys(shaders.standard.schema).forEach(addMapping);\n\nfunction addMapping (prop) {\n  // To hyphenated.\n  var htmlAttrName = prop.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase();\n  if (prop === 'fog') { htmlAttrName = 'material-fog'; }\n  if (prop === 'visible') { htmlAttrName = 'material-visible'; }\n  materialMappings[htmlAttrName] = 'material.' + prop;\n}\n\nmodule.exports = function getMeshMixin () {\n  return {\n    defaultComponents: {material: {}},\n    mappings: utils.extend({}, materialMappings)\n  };\n};\n","require('./primitives/a-camera');\nrequire('./primitives/a-collada-model');\nrequire('./primitives/a-cursor');\nrequire('./primitives/a-curvedimage');\nrequire('./primitives/a-gltf-model');\nrequire('./primitives/a-image');\nrequire('./primitives/a-light');\nrequire('./primitives/a-link');\nrequire('./primitives/a-obj-model');\nrequire('./primitives/a-sky');\nrequire('./primitives/a-sound');\nrequire('./primitives/a-text');\nrequire('./primitives/a-video');\nrequire('./primitives/a-videosphere');\nrequire('./primitives/meshPrimitives');\n","var AEntity = require('../../core/a-entity');\nvar components = require('../../core/component').components;\nvar registerElement = require('../../core/a-register-element').registerElement;\nvar utils = require('../../utils/');\n\nvar debug = utils.debug;\nvar setComponentProperty = utils.entity.setComponentProperty;\nvar log = debug('extras:primitives:debug');\nvar warn = debug('extras:primitives:warn');\n\nvar primitives = module.exports.primitives = {};\n\nmodule.exports.registerPrimitive = function registerPrimitive (name, definition) {\n  name = name.toLowerCase();\n  log('Registering <%s>', name);\n\n  // Deprecation warning for defaultAttributes usage.\n  if (definition.defaultAttributes) {\n    warn(\"The 'defaultAttributes' object is deprecated. Use 'defaultComponents' instead.\");\n  }\n\n  var primitive = registerElement(name, {\n    prototype: Object.create(AEntity.prototype, {\n      defaultComponentsFromPrimitive: {\n        value: definition.defaultComponents || definition.defaultAttributes || {}\n      },\n      deprecated: {value: definition.deprecated || null},\n      deprecatedMappings: {value: definition.deprecatedMappings || {}},\n      mappings: {value: definition.mappings || {}},\n\n      createdCallback: {\n        value: function () {\n          if (definition.deprecated) { console.warn(definition.deprecated); }\n          this.resolveMappingCollisions();\n        }\n      },\n\n      /**\n       * If a mapping collides with a registered component name\n       * it renames the mapping to componentname-property\n       */\n      resolveMappingCollisions: {\n        value: function () {\n          var mappings = this.mappings;\n          var self = this;\n          Object.keys(mappings).forEach(function resolveCollision (key) {\n            var newAttribute;\n            if (key !== key.toLowerCase()) { warn('Mapping keys should be specified in lower case. The mapping key ' + key + ' may not be recognized'); }\n            if (components[key]) {\n              newAttribute = mappings[key].replace('.', '-');\n              mappings[newAttribute] = mappings[key];\n              delete mappings[key];\n              console.warn('The primitive ' + self.tagName.toLowerCase() + ' has a mapping collision. ' +\n                           'The attribute ' + key + ' has the same name as a registered component and' +\n                           ' has been renamed to ' + newAttribute);\n            }\n          });\n        }\n      },\n\n      getExtraComponents: {\n        value: function () {\n          var attr;\n          var data;\n          var i;\n          var mapping;\n          var mixins;\n          var path;\n          var self = this;\n\n          // Gather component data from default components.\n          data = utils.clone(this.defaultComponentsFromPrimitive);\n\n          // Factor in mixins to overwrite default components.\n          mixins = this.getAttribute('mixin');\n          if (mixins) {\n            mixins = mixins.trim().split(' ');\n            mixins.forEach(function applyMixin (mixinId) {\n              var mixinComponents = self.sceneEl.querySelector('#' + mixinId).componentCache;\n              Object.keys(mixinComponents).forEach(function setComponent (name) {\n                data[name] = extend(data[name], mixinComponents[name]);\n              });\n            });\n          }\n\n          // Gather component data from mappings.\n          for (i = 0; i < this.attributes.length; i++) {\n            attr = this.attributes[i];\n            mapping = this.mappings[attr.name];\n            if (mapping) {\n              path = utils.entity.getComponentPropertyPath(mapping);\n              if (path.constructor === Array) {\n                data[path[0]] = data[path[0]] || {};\n                data[path[0]][path[1]] = attr.value.trim();\n              } else {\n                data[path] = attr.value.trim();\n              }\n              continue;\n            }\n          }\n\n          return data;\n\n          /**\n           * For the base to be extensible, both objects must be pure JavaScript objects.\n           * The function assumes that base is undefined, or null or a pure object.\n           */\n          function extend (base, extension) {\n            if (isUndefined(base)) {\n              return copy(extension);\n            }\n            if (isUndefined(extension)) {\n              return copy(base);\n            }\n            if (isPureObject(base) && isPureObject(extension)) {\n              return utils.extendDeep(base, extension);\n            }\n            return copy(extension);\n          }\n\n          function isUndefined (value) {\n            return typeof value === 'undefined';\n          }\n\n          function copy (value) {\n            if (isPureObject(value)) {\n              return utils.extendDeep({}, value);\n            }\n            return value;\n          }\n\n          function isPureObject (value) {\n            return value !== null && value.constructor === Object;\n          }\n        }\n      },\n\n      /**\n       * Sync to attribute to component property whenever mapped attribute changes.\n       * If attribute is mapped to a component property, set the component property using\n       * the attribute value.\n       */\n      attributeChangedCallback: {\n        value: function (attr, oldVal, value) {\n          var componentName = this.mappings[attr];\n\n          if (attr in this.deprecatedMappings) {\n            console.warn(this.deprecatedMappings[attr]);\n          }\n\n          if (!attr || !componentName) { return; }\n\n          // Set value.\n          setComponentProperty(this, componentName, value);\n        }\n      }\n    })\n  });\n\n  // Store.\n  primitives[name] = primitive;\n  return primitive;\n};\n\n/**\n * Add component mappings using schema.\n */\nfunction addComponentMapping (componentName, mappings) {\n  var schema = components[componentName].schema;\n  Object.keys(schema).map(function (prop) {\n    // Hyphenate where there is camelCase.\n    var attrName = prop.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase();\n    // If there is a mapping collision, prefix with component name and hyphen.\n    if (mappings[attrName] !== undefined) { attrName = componentName + '-' + prop; }\n    mappings[attrName] = componentName + '.' + prop;\n  });\n}\n\n/**\n * Helper to define a primitive, building mappings using a component schema.\n */\nfunction definePrimitive (tagName, defaultComponents, mappings) {\n  // If no initial mappings provided, start from empty map.\n  mappings = mappings || {};\n\n  // From the default components, add mapping automagically.\n  Object.keys(defaultComponents).map(function buildMappings (componentName) {\n    addComponentMapping(componentName, mappings);\n  });\n\n  // Register the primitive.\n  module.exports.registerPrimitive(tagName, utils.extendDeep({}, null, {\n    defaultComponents: defaultComponents,\n    mappings: mappings\n  }));\n}\nmodule.exports.definePrimitive = definePrimitive;\n","var DEFAULT_CAMERA_HEIGHT = require('../../../constants/').DEFAULT_CAMERA_HEIGHT;\nvar registerPrimitive = require('../primitives').registerPrimitive;\n\nregisterPrimitive('a-camera', {\n  defaultComponents: {\n    camera: {\n      userHeight: DEFAULT_CAMERA_HEIGHT\n    },\n    'look-controls': {},\n    'wasd-controls': {}\n  },\n\n  mappings: {\n    active: 'camera.active',\n    far: 'camera.far',\n    fov: 'camera.fov',\n    'look-controls-enabled': 'look-controls.enabled',\n    near: 'camera.near',\n    'wasd-controls-enabled': 'wasd-controls.enabled',\n    'reverse-mouse-drag': 'look-controls.reverseMouseDrag',\n    'user-height': 'camera.userHeight',\n    zoom: 'camera.zoom'\n  }\n});\n","var registerPrimitive = require('../primitives').registerPrimitive;\n\nregisterPrimitive('a-collada-model', {\n  mappings: {\n    src: 'collada-model'\n  }\n});\n","var getMeshMixin = require('../getMeshMixin');\nvar registerPrimitive = require('../primitives').registerPrimitive;\nvar utils = require('../../../utils/');\n\nregisterPrimitive('a-cursor', utils.extendDeep({}, getMeshMixin(), {\n  defaultComponents: {\n    cursor: {},\n    geometry: {\n      primitive: 'ring',\n      radiusOuter: 0.016,\n      radiusInner: 0.01,\n      segmentsTheta: 32\n    },\n    material: {\n      color: '#000',\n      shader: 'flat',\n      opacity: 0.8\n    },\n    position: {\n      x: 0,\n      y: 0,\n      z: -1\n    }\n  },\n\n  mappings: {\n    far: 'raycaster.far',\n    fuse: 'cursor.fuse',\n    'fuse-timeout': 'cursor.fuseTimeout',\n    interval: 'raycaster.interval',\n    objects: 'raycaster.objects'\n  }\n}));\n","var getMeshMixin = require('../getMeshMixin');\nvar registerPrimitive = require('../primitives').registerPrimitive;\nvar utils = require('../../../utils/');\n\nregisterPrimitive('a-curvedimage', utils.extendDeep({}, getMeshMixin(), {\n  defaultComponents: {\n    geometry: {\n      height: 1,\n      primitive: 'cylinder',\n      radius: 2,\n      segmentsRadial: 48,\n      thetaLength: 270,\n      openEnded: true,\n      thetaStart: 0\n    },\n    material: {\n      color: '#FFF',\n      shader: 'flat',\n      side: 'double',\n      transparent: true,\n      repeat: '-1 1'\n    }\n  },\n\n  mappings: {\n    height: 'geometry.height',\n    'open-ended': 'geometry.openEnded',\n    radius: 'geometry.radius',\n    segments: 'geometry.segmentsRadial',\n    start: 'geometry.thetaStart',\n    'theta-length': 'geometry.thetaLength',\n    'theta-start': 'geometry.thetaStart',\n    'width': 'geometry.thetaLength'\n  }\n}));\n","var registerPrimitive = require('../primitives').registerPrimitive;\n\nregisterPrimitive('a-gltf-model', {\n  mappings: {\n    src: 'gltf-model'\n  }\n});\n","var getMeshMixin = require('../getMeshMixin');\nvar registerPrimitive = require('../primitives').registerPrimitive;\nvar utils = require('../../../utils/');\n\nregisterPrimitive('a-image', utils.extendDeep({}, getMeshMixin(), {\n  defaultComponents: {\n    geometry: {\n      primitive: 'plane'\n    },\n    material: {\n      color: '#FFF',\n      shader: 'flat',\n      side: 'double',\n      transparent: true\n    }\n  },\n\n  mappings: {\n    height: 'geometry.height',\n    width: 'geometry.width'\n  }\n}));\n","var registerPrimitive = require('../primitives').registerPrimitive;\n\nregisterPrimitive('a-light', {\n  defaultComponents: {\n    light: {}\n  },\n\n  mappings: {\n    angle: 'light.angle',\n    color: 'light.color',\n    'ground-color': 'light.groundColor',\n    decay: 'light.decay',\n    distance: 'light.distance',\n    intensity: 'light.intensity',\n    penumbra: 'light.penumbra',\n    type: 'light.type',\n    target: 'light.target'\n  }\n});\n","var registerPrimitive = require('../primitives').registerPrimitive;\n\nregisterPrimitive('a-link', {\n  defaultComponents: {},\n\n  mappings: {\n    href: 'link.href',\n    image: 'link.image',\n    title: 'link.title'\n  }\n});\n","var meshMixin = require('../getMeshMixin')();\nvar registerPrimitive = require('../primitives').registerPrimitive;\nvar utils = require('../../../utils/');\n\nregisterPrimitive('a-obj-model', utils.extendDeep({}, meshMixin, {\n  defaultComponents: {\n    'obj-model': {}\n  },\n\n  mappings: {\n    src: 'obj-model.obj',\n    mtl: 'obj-model.mtl'\n  }\n}));\n","var getMeshMixin = require('../getMeshMixin');\nvar registerPrimitive = require('../primitives').registerPrimitive;\nvar utils = require('../../../utils/');\nvar meshPrimitives = require('./meshPrimitives');\n\nregisterPrimitive('a-sky', utils.extendDeep({}, getMeshMixin(), {\n  defaultComponents: {\n    geometry: {\n      primitive: 'sphere',\n      radius: 5000,\n      segmentsWidth: 64,\n      segmentsHeight: 32\n    },\n    material: {\n      color: '#FFF',\n      shader: 'flat',\n      npot: true\n    },\n    scale: '-1 1 1'\n  },\n\n  mappings: utils.extendDeep({}, meshPrimitives['a-sphere'].prototype.mappings)\n}));\n","var registerPrimitive = require('../primitives').registerPrimitive;\n\nregisterPrimitive('a-sound', {\n  defaultComponents: {\n    sound: {}\n  },\n\n  mappings: {\n    src: 'sound.src',\n    on: 'sound.on',\n    autoplay: 'sound.autoplay',\n    loop: 'sound.loop',\n    volume: 'sound.volume'\n  }\n});\n","// <a-text> using `definePrimitive` helper.\nvar definePrimitive = require('../primitives').definePrimitive;\ndefinePrimitive('a-text', {text: {anchor: 'align', width: 5}});\n","var getMeshMixin = require('../getMeshMixin');\nvar registerPrimitive = require('../primitives').registerPrimitive;\nvar utils = require('../../../utils/');\n\nregisterPrimitive('a-video', utils.extendDeep({}, getMeshMixin(), {\n  defaultComponents: {\n    geometry: {\n      primitive: 'plane'\n    },\n    material: {\n      color: '#FFF',\n      shader: 'flat',\n      side: 'double',\n      transparent: true\n    }\n  },\n\n  mappings: {\n    height: 'geometry.height',\n    width: 'geometry.width'\n  }\n}));\n","var getMeshMixin = require('../getMeshMixin');\nvar registerPrimitive = require('../primitives').registerPrimitive;\nvar utils = require('../../../utils/');\n\nregisterPrimitive('a-videosphere', utils.extendDeep({}, getMeshMixin(), {\n  defaultComponents: {\n    geometry: {\n      primitive: 'sphere',\n      radius: 5000,\n      segmentsWidth: 64,\n      segmentsHeight: 32\n    },\n    material: {\n      color: '#FFF',\n      shader: 'flat',\n      npot: true\n    },\n    scale: '-1 1 1'\n  },\n\n  mappings: {\n    radius: 'geometry.radius',\n    'segments-height': 'geometry.segmentsHeight',\n    'segments-width': 'geometry.segmentsWidth'\n  }\n}));\n","/**\n * Automated mesh primitive registration.\n */\nvar getMeshMixin = require('../getMeshMixin');\nvar geometries = require('../../../core/geometry').geometries;\nvar geometryNames = require('../../../core/geometry').geometryNames;\nvar registerPrimitive = require('../primitives').registerPrimitive;\nvar utils = require('../../../utils/');\n\n// For testing.\nvar meshPrimitives = module.exports = {};\n\n// Generate primitive for each geometry type.\ngeometryNames.forEach(function registerMeshPrimitive (geometryName) {\n  var geometry = geometries[geometryName];\n  var geometryHyphened = unCamelCase(geometryName);\n\n  // Generate mappings.\n  var mappings = {};\n  Object.keys(geometry.schema).forEach(function createMapping (property) {\n    mappings[unCamelCase(property)] = 'geometry.' + property;\n  });\n\n  // Register.\n  var tagName = 'a-' + geometryHyphened;\n  var primitive = registerPrimitive(tagName, utils.extendDeep({}, getMeshMixin(), {\n    defaultComponents: {geometry: {primitive: geometryName}},\n    mappings: mappings\n  }));\n  meshPrimitives[tagName] = primitive;\n});\n\n/**\n * camelCase to hyphened-string.\n */\nfunction unCamelCase (str) {\n  return str.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase();\n}\n","var registerGeometry = require('../core/geometry').registerGeometry;\nvar THREE = require('../lib/three');\n\nregisterGeometry('box', {\n  schema: {\n    depth: {default: 1, min: 0},\n    height: {default: 1, min: 0},\n    width: {default: 1, min: 0},\n    segmentsHeight: {default: 1, min: 1, max: 20, type: 'int'},\n    segmentsWidth: {default: 1, min: 1, max: 20, type: 'int'},\n    segmentsDepth: {default: 1, min: 1, max: 20, type: 'int'}\n  },\n\n  init: function (data) {\n    this.geometry = new THREE.BoxGeometry(\n      data.width, data.height, data.depth,\n      data.segmentsWidth, data.segmentsHeight, data.segmentsDepth);\n  }\n});\n","var registerGeometry = require('../core/geometry').registerGeometry;\nvar THREE = require('../lib/three');\n\nvar degToRad = THREE.Math.degToRad;\n\nregisterGeometry('circle', {\n  schema: {\n    radius: {default: 1, min: 0},\n    segments: {default: 32, min: 3, type: 'int'},\n    thetaLength: {default: 360, min: 0},\n    thetaStart: {default: 0}\n  },\n\n  init: function (data) {\n    this.geometry = new THREE.CircleGeometry(\n      data.radius, data.segments, degToRad(data.thetaStart), degToRad(data.thetaLength));\n  }\n});\n","var registerGeometry = require('../core/geometry').registerGeometry;\nvar THREE = require('../lib/three');\n\nvar degToRad = THREE.Math.degToRad;\n\nregisterGeometry('cone', {\n  schema: {\n    height: {default: 1, min: 0},\n    openEnded: {default: false},\n    radiusBottom: {default: 1, min: 0},\n    radiusTop: {default: 0.01, min: 0},\n    segmentsHeight: {default: 18, min: 1, type: 'int'},\n    segmentsRadial: {default: 36, min: 3, type: 'int'},\n    thetaLength: {default: 360, min: 0},\n    thetaStart: {default: 0}\n  },\n\n  init: function (data) {\n    this.geometry = new THREE.CylinderGeometry(\n        data.radiusTop, data.radiusBottom, data.height, data.segmentsRadial,\n        data.segmentsHeight, data.openEnded, degToRad(data.thetaStart),\n        degToRad(data.thetaLength));\n  }\n});\n","var registerGeometry = require('../core/geometry').registerGeometry;\nvar THREE = require('../lib/three');\n\nvar degToRad = THREE.Math.degToRad;\n\nregisterGeometry('cylinder', {\n  schema: {\n    height: {default: 1, min: 0},\n    openEnded: {default: false},\n    radius: {default: 1, min: 0},\n    segmentsHeight: {default: 18, min: 1, type: 'int'},\n    segmentsRadial: {default: 36, min: 3, type: 'int'},\n    thetaLength: {default: 360, min: 0},\n    thetaStart: {default: 0}\n  },\n\n  init: function (data) {\n    this.geometry = new THREE.CylinderGeometry(\n        data.radius, data.radius, data.height, data.segmentsRadial, data.segmentsHeight,\n        data.openEnded, degToRad(data.thetaStart), degToRad(data.thetaLength));\n  }\n});\n","var registerGeometry = require('../core/geometry').registerGeometry;\nvar THREE = require('../lib/three');\n\nregisterGeometry('dodecahedron', {\n  schema: {\n    detail: {default: 0, min: 0, max: 5, type: 'int'},\n    radius: {default: 1, min: 0}\n  },\n\n  init: function (data) {\n    this.geometry = new THREE.DodecahedronGeometry(data.radius, data.detail);\n  }\n});\n","var registerGeometry = require('../core/geometry').registerGeometry;\nvar THREE = require('../lib/three');\n\nregisterGeometry('icosahedron', {\n  schema: {\n    detail: {default: 0, min: 0, max: 5, type: 'int'},\n    radius: {default: 1, min: 0}\n  },\n\n  init: function (data) {\n    this.geometry = new THREE.IcosahedronGeometry(data.radius, data.detail);\n  }\n});\n","require('./box.js');\nrequire('./circle.js');\nrequire('./cone.js');\nrequire('./cylinder.js');\nrequire('./dodecahedron.js');\nrequire('./icosahedron.js');\nrequire('./octahedron.js');\nrequire('./plane.js');\nrequire('./ring.js');\nrequire('./sphere.js');\nrequire('./tetrahedron.js');\nrequire('./torus.js');\nrequire('./torusKnot.js');\nrequire('./triangle.js');\n","var registerGeometry = require('../core/geometry').registerGeometry;\nvar THREE = require('../lib/three');\n\nregisterGeometry('octahedron', {\n  schema: {\n    detail: {default: 0, min: 0, max: 5, type: 'int'},\n    radius: {default: 1, min: 0}\n  },\n\n  init: function (data) {\n    this.geometry = new THREE.OctahedronGeometry(data.radius, data.detail);\n  }\n});\n","var registerGeometry = require('../core/geometry').registerGeometry;\nvar THREE = require('../lib/three');\n\nregisterGeometry('plane', {\n  schema: {\n    height: {default: 1, min: 0},\n    width: {default: 1, min: 0},\n    segmentsHeight: {default: 1, min: 1, max: 20, type: 'int'},\n    segmentsWidth: {default: 1, min: 1, max: 20, type: 'int'}\n  },\n\n  init: function (data) {\n    this.geometry = new THREE.PlaneGeometry(data.width, data.height, data.segmentsWidth, data.segmentsHeight);\n  }\n});\n","var registerGeometry = require('../core/geometry').registerGeometry;\nvar THREE = require('../lib/three');\n\nvar degToRad = THREE.Math.degToRad;\n\nregisterGeometry('ring', {\n  schema: {\n    radiusInner: {default: 0.8, min: 0},\n    radiusOuter: {default: 1.2, min: 0},\n    segmentsPhi: {default: 10, min: 1, type: 'int'},\n    segmentsTheta: {default: 32, min: 3, type: 'int'},\n    thetaLength: {default: 360, min: 0},\n    thetaStart: {default: 0}\n  },\n\n  init: function (data) {\n    this.geometry = new THREE.RingGeometry(\n        data.radiusInner, data.radiusOuter, data.segmentsTheta, data.segmentsPhi,\n        degToRad(data.thetaStart), degToRad(data.thetaLength));\n  }\n});\n","var registerGeometry = require('../core/geometry').registerGeometry;\nvar THREE = require('../lib/three');\n\nvar degToRad = THREE.Math.degToRad;\n\nregisterGeometry('sphere', {\n  schema: {\n    radius: {default: 1, min: 0},\n    phiLength: {default: 360},\n    phiStart: {default: 0, min: 0},\n    thetaLength: {default: 180, min: 0},\n    thetaStart: {default: 0},\n    segmentsHeight: {default: 18, min: 2, type: 'int'},\n    segmentsWidth: {default: 36, min: 3, type: 'int'}\n  },\n\n  init: function (data) {\n    this.geometry = new THREE.SphereGeometry(\n      data.radius, data.segmentsWidth, data.segmentsHeight, degToRad(data.phiStart),\n      degToRad(data.phiLength), degToRad(data.thetaStart), degToRad(data.thetaLength));\n  }\n});\n","var registerGeometry = require('../core/geometry').registerGeometry;\nvar THREE = require('../lib/three');\n\nregisterGeometry('tetrahedron', {\n  schema: {\n    detail: {default: 0, min: 0, max: 5, type: 'int'},\n    radius: {default: 1, min: 0}\n  },\n\n  init: function (data) {\n    this.geometry = new THREE.TetrahedronGeometry(data.radius, data.detail);\n  }\n});\n","var registerGeometry = require('../core/geometry').registerGeometry;\nvar THREE = require('../lib/three');\n\nvar degToRad = THREE.Math.degToRad;\n\nregisterGeometry('torus', {\n  schema: {\n    arc: {default: 360},\n    radius: {default: 1, min: 0},\n    radiusTubular: {default: 0.2, min: 0},\n    segmentsRadial: {default: 36, min: 2, type: 'int'},\n    segmentsTubular: {default: 32, min: 3, type: 'int'}\n  },\n\n  init: function (data) {\n    this.geometry = new THREE.TorusGeometry(\n      data.radius, data.radiusTubular * 2, data.segmentsRadial, data.segmentsTubular,\n      degToRad(data.arc));\n  }\n});\n","var registerGeometry = require('../core/geometry').registerGeometry;\nvar THREE = require('../lib/three');\n\nregisterGeometry('torusKnot', {\n  schema: {\n    p: {default: 2, min: 1},\n    q: {default: 3, min: 1},\n    radius: {default: 1, min: 0},\n    radiusTubular: {default: 0.2, min: 0},\n    segmentsRadial: {default: 8, min: 3, type: 'int'},\n    segmentsTubular: {default: 100, min: 3, type: 'int'}\n  },\n\n  init: function (data) {\n    this.geometry = new THREE.TorusKnotGeometry(\n      data.radius, data.radiusTubular * 2, data.segmentsTubular, data.segmentsRadial,\n      data.p, data.q);\n  }\n});\n","var registerGeometry = require('../core/geometry').registerGeometry;\nvar THREE = require('../lib/three');\n\nvar quaternion = new THREE.Quaternion();\nvar rotateVector = new THREE.Vector3(0, 0, 1);\nvar uvMinVector = new THREE.Vector2();\nvar uvMaxVector = new THREE.Vector2();\nvar uvScaleVector = new THREE.Vector2();\n\nregisterGeometry('triangle', {\n  schema: {\n    vertexA: {type: 'vec3', default: {x: 0, y: 0.5, z: 0}},\n    vertexB: {type: 'vec3', default: {x: -0.5, y: -0.5, z: 0}},\n    vertexC: {type: 'vec3', default: {x: 0.5, y: -0.5, z: 0}}\n  },\n\n  init: function (data) {\n    var geometry;\n    var normal;\n    var triangle;\n    var uvA;\n    var uvB;\n    var uvC;\n\n    triangle = new THREE.Triangle();\n    triangle.a.set(data.vertexA.x, data.vertexA.y, data.vertexA.z);\n    triangle.b.set(data.vertexB.x, data.vertexB.y, data.vertexB.z);\n    triangle.c.set(data.vertexC.x, data.vertexC.y, data.vertexC.z);\n    normal = triangle.normal();\n\n    // Rotate the 3D triangle to be parallel to XY plane.\n    quaternion.setFromUnitVectors(normal, rotateVector);\n    uvA = triangle.a.clone().applyQuaternion(quaternion);\n    uvB = triangle.b.clone().applyQuaternion(quaternion);\n    uvC = triangle.c.clone().applyQuaternion(quaternion);\n\n    // Compute UVs.\n    // Normalize x/y values of UV so they are within 0 to 1.\n    uvMinVector.set(Math.min(uvA.x, uvB.x, uvC.x), Math.min(uvA.y, uvB.y, uvC.y));\n    uvMaxVector.set(Math.max(uvA.x, uvB.x, uvC.x), Math.max(uvA.y, uvB.y, uvC.y));\n    uvScaleVector.set(0, 0).subVectors(uvMaxVector, uvMinVector);\n    uvA = new THREE.Vector2().subVectors(uvA, uvMinVector).divide(uvScaleVector);\n    uvB = new THREE.Vector2().subVectors(uvB, uvMinVector).divide(uvScaleVector);\n    uvC = new THREE.Vector2().subVectors(uvC, uvMinVector).divide(uvScaleVector);\n\n    geometry = this.geometry = new THREE.Geometry();\n    geometry.vertices.push(triangle.a);\n    geometry.vertices.push(triangle.b);\n    geometry.vertices.push(triangle.c);\n    geometry.faces.push(new THREE.Face3(0, 1, 2, normal));\n    geometry.faceVertexUvs[0] = [[uvA, uvB, uvC]];\n  }\n});\n","var utils = require('./utils/');\n\nvar debug = utils.debug;\nvar error = debug('A-Frame:error');\nvar warn = debug('A-Frame:warn');\n\nif (window.document.currentScript && window.document.currentScript.parentNode !==\n    window.document.head && !window.debug) {\n  warn('Put the A-Frame <script> tag in the <head> of the HTML *before* the scene to ' +\n       'ensure everything for A-Frame is properly registered before they are used from ' +\n       'HTML.');\n}\n\n// Error if not using a server.\nif (window.location.protocol === 'file:') {\n  error(\n    'This HTML file is currently being served via the file:// protocol. ' +\n    'Assets, textures, and models WILL NOT WORK due to cross-origin policy! ' +\n    'Please use a local or hosted server: ' +\n    'https://aframe.io/docs/0.5.0/introduction/getting-started.html#using-a-local-server.');\n}\n\n// Polyfill `Promise`.\nwindow.Promise = window.Promise || require('promise-polyfill');\n\n// Check before the polyfill runs.\nwindow.hasNativeWebVRImplementation = !!window.navigator.getVRDisplays || !!window.navigator.getVRDevices;\n\nwindow.WebVRConfig = window.WebVRConfig || {\n  BUFFER_SCALE: 1,\n  CARDBOARD_UI_DISABLED: true,\n  ROTATE_INSTRUCTIONS_DISABLED: true,\n  TOUCH_PANNER_DISABLED: true,\n  MOUSE_KEYBOARD_CONTROLS_DISABLED: true\n};\n\n// Workaround for iOS Safari canvas sizing issues in stereo (webvr-polyfill/issues/102).\n// Only for iOS on versions older than 10.\nif (utils.device.isIOSOlderThan10(window.navigator.userAgent)) {\n  window.WebVRConfig.BUFFER_SCALE = 1 / window.devicePixelRatio;\n}\n\n// WebVR polyfill\nrequire('webvr-polyfill');\n\nrequire('present'); // Polyfill `performance.now()`.\n\n// CSS.\nif (utils.device.isBrowserEnvironment) {\n  require('./style/aframe.css');\n  require('./style/rStats.css');\n}\n\n// Required before `AEntity` so that all components are registered.\nvar AScene = require('./core/scene/a-scene').AScene;\nvar components = require('./core/component').components;\nvar registerComponent = require('./core/component').registerComponent;\nvar registerGeometry = require('./core/geometry').registerGeometry;\nvar registerPrimitive = require('./extras/primitives/primitives').registerPrimitive;\nvar registerShader = require('./core/shader').registerShader;\nvar registerSystem = require('./core/system').registerSystem;\nvar shaders = require('./core/shader').shaders;\nvar systems = require('./core/system').systems;\n// Exports THREE to window so three.js can be used without alteration.\nvar THREE = window.THREE = require('./lib/three');\nvar TWEEN = window.TWEEN = require('@tweenjs/tween.js');\n\nvar pkg = require('../package');\n\nrequire('./components/index'); // Register standard components.\nrequire('./geometries/index'); // Register standard geometries.\nrequire('./shaders/index'); // Register standard shaders.\nrequire('./systems/index'); // Register standard systems.\nvar ANode = require('./core/a-node');\nvar AEntity = require('./core/a-entity'); // Depends on ANode and core components.\n\nrequire('./core/a-animation');\nrequire('./core/a-assets');\nrequire('./core/a-cubemap');\nrequire('./core/a-mixin');\n\n// Extras.\nrequire('./extras/components/');\nrequire('./extras/primitives/');\n\nconsole.log('A-Frame Version: 0.7.0 (Date 2017-12-06, Commit #ee7f7cc2)');\nconsole.log('three Version:', pkg.dependencies['three']);\nconsole.log('WebVR Polyfill Version:', pkg.dependencies['webvr-polyfill']);\n\nmodule.exports = window.AFRAME = {\n  AComponent: require('./core/component').Component,\n  AEntity: AEntity,\n  ANode: ANode,\n  AScene: AScene,\n  components: components,\n  geometries: require('./core/geometry').geometries,\n  registerComponent: registerComponent,\n  registerElement: require('./core/a-register-element').registerElement,\n  registerGeometry: registerGeometry,\n  registerPrimitive: registerPrimitive,\n  registerShader: registerShader,\n  registerSystem: registerSystem,\n  primitives: {\n    getMeshMixin: require('./extras/primitives/getMeshMixin'),\n    primitives: require('./extras/primitives/primitives').primitives\n  },\n  scenes: require('./core/scene/scenes'),\n  schema: require('./core/schema'),\n  shaders: shaders,\n  systems: systems,\n  THREE: THREE,\n  TWEEN: TWEEN,\n  utils: utils,\n  version: pkg.version\n};\n","window.aframeStats = function (scene) {\n  var _rS = null;\n  var _scene = scene;\n  var _values = {\n    te: {\n      caption: 'Entities'\n    },\n    lt: {\n      caption: 'Load Time'\n    }\n  };\n  var _groups = [ {\n    caption: 'A-Frame',\n    values: [ 'te', 'lt' ]\n  } ];\n\n  function _update () {\n    _rS('te').set(getEntityCount());\n    if (window.performance.getEntriesByName) {\n      _rS('lt').set(window.performance.getEntriesByName('render-started')[0].startTime.toFixed(0));\n    }\n  }\n\n  function getEntityCount () {\n    var elements = _scene.querySelectorAll('*');\n    Array.prototype.slice.call(elements).filter(function (el) {\n      return el.isEntity;\n    });\n    return elements.length;\n  }\n\n  function _start () {}\n\n  function _end () {}\n\n  function _attach (r) {\n    _rS = r;\n  }\n\n  return {\n    update: _update,\n    start: _start,\n    end: _end,\n    attach: _attach,\n    values: _values,\n    groups: _groups,\n    fractions: []\n  };\n};\n\nif (typeof module === 'object') {\n  module.exports = {\n    aframeStats: window.aframeStats\n  };\n}\n","var THREE = global.THREE = require('three');\n\n// Allow cross-origin images to be loaded.\n\n// This should not be on `THREE.Loader` nor `THREE.ImageUtils`.\n// Must be on `THREE.TextureLoader`.\nif (THREE.TextureLoader) {\n  THREE.TextureLoader.prototype.crossOrigin = 'anonymous';\n}\n\n// This is for images loaded from the model loaders.\nif (THREE.ImageLoader) {\n  THREE.ImageLoader.prototype.crossOrigin = 'anonymous';\n}\n\n// In-memory caching for XHRs (for images, audio files, textures, etc.).\nif (THREE.Cache) {\n  THREE.Cache.enabled = true;\n}\n\n// TODO: Eventually include these only if they are needed by a component.\nrequire('three/examples/js/loaders/GLTFLoader');  // THREE.GLTFLoader\nrequire('three/examples/js/loaders/OBJLoader');  // THREE.OBJLoader\nrequire('three/examples/js/loaders/MTLLoader');  // THREE.MTLLoader\nrequire('three/examples/js/loaders/ColladaLoader');  // THREE.ColladaLoader\nrequire('../../vendor/VRControls');  // THREE.VRControls\nrequire('../../vendor/VREffect');  // THREE.VREffect\n\nTHREE.ColladaLoader.prototype.crossOrigin = 'anonymous';\nTHREE.GLTFLoader.prototype.crossOrigin = 'anonymous';\nTHREE.MTLLoader.prototype.crossOrigin = 'anonymous';\nTHREE.OBJLoader.prototype.crossOrigin = 'anonymous';\n\nmodule.exports = THREE;\n","var registerShader = require('../core/shader').registerShader;\nvar THREE = require('../lib/three');\nvar utils = require('../utils/');\n\n/**\n * Flat shader using THREE.MeshBasicMaterial.\n */\nmodule.exports.Shader = registerShader('flat', {\n  schema: {\n    color: {type: 'color'},\n    fog: {default: true},\n    height: {default: 256},\n    offset: {type: 'vec2', default: {x: 0, y: 0}},\n    repeat: {type: 'vec2', default: {x: 1, y: 1}},\n    src: {type: 'map'},\n    width: {default: 512},\n    wireframe: {default: false},\n    wireframeLinewidth: {default: 2}\n  },\n\n  /**\n   * Initializes the shader.\n   * Adds a reference from the scene to this entity as the camera.\n   */\n  init: function (data) {\n    this.textureSrc = null;\n    this.material = new THREE.MeshBasicMaterial(getMaterialData(data));\n    utils.material.updateMap(this, data);\n  },\n\n  update: function (data) {\n    this.updateMaterial(data);\n    utils.material.updateMap(this, data);\n  },\n\n  /**\n   * Updating existing material.\n   *\n   * @param {object} data - Material component data.\n   */\n  updateMaterial: function (data) {\n    var material = this.material;\n    data = getMaterialData(data);\n    Object.keys(data).forEach(function (key) {\n      material[key] = data[key];\n    });\n  }\n});\n\n/**\n * Builds and normalize material data, normalizing stuff along the way.\n *\n * @param {object} data - Material data.\n * @returns {object} data - Processed material data.\n */\nfunction getMaterialData (data) {\n  return {\n    fog: data.fog,\n    color: new THREE.Color(data.color),\n    wireframe: data.wireframe,\n    wireframeLinewidth: data.wireframeLinewidth\n  };\n}\n","require('./flat');\nrequire('./standard');\nrequire('./sdf');\nrequire('./msdf');\nrequire('./ios10hls');\n","var registerShader = require('../core/shader').registerShader;\n\n/**\n * Custom shader for iOS 10 HTTP Live Streaming (HLS).\n * For more information on HLS, see https://datatracker.ietf.org/doc/draft-pantos-http-live-streaming/\n */\nmodule.exports.Shader = registerShader('ios10hls', {\n  schema: {\n    src: {type: 'map', is: 'uniform'},\n    opacity: {type: 'number', is: 'uniform', default: 1}\n  },\n\n  vertexShader: [\n    'varying vec2 vUV;',\n    'void main(void) {',\n    '  gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);',\n    '  vUV = uv;',\n    '}'\n  ].join('\\n'),\n\n  fragmentShader: [\n    'uniform sampler2D src;',\n    'uniform float opacity;',\n    'varying vec2 vUV;',\n    'void main() {',\n    '  vec2 offset = vec2(0, 0);',\n    '  vec2 repeat = vec2(1, 1);',\n    '  vec4 color = texture2D(src, vec2(vUV.x / repeat.x + offset.x, (1.0 - vUV.y) / repeat.y + offset.y)).bgra;',\n    '  gl_FragColor = vec4(color.rgb, opacity);',\n    '}'\n  ].join('\\n')\n});\n\n","var registerShader = require('../core/shader').registerShader;\n\n/**\n * Multi-channel signed distance field.\n * Used by text component.\n */\nmodule.exports.Shader = registerShader('msdf', {\n  schema: {\n    alphaTest: {type: 'number', is: 'uniform', default: 0.5},\n    color: {type: 'color', is: 'uniform', default: 'white'},\n    map: {type: 'map', is: 'uniform'},\n    opacity: {type: 'number', is: 'uniform', default: 1.0}\n  },\n\n  raw: true,\n\n  vertexShader: [\n    'attribute vec2 uv;',\n    'attribute vec3 position;',\n    'uniform mat4 projectionMatrix;',\n    'uniform mat4 modelViewMatrix;',\n    'varying vec2 vUV;',\n    'void main(void) {',\n    '  gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);',\n    '  vUV = uv;',\n    '}'\n  ].join('\\n'),\n\n  fragmentShader: [\n    '#ifdef GL_OES_standard_derivatives',\n    '#extension GL_OES_standard_derivatives: enable',\n    '#endif',\n\n    'precision highp float;',\n    // FIXME: Experimentally determined constants.\n    '#define BIG_ENOUGH 0.001',\n    '#define MODIFIED_ALPHATEST (0.02 * isBigEnough / BIG_ENOUGH)',\n    '#define ALL_SMOOTH 0.4',\n    '#define ALL_ROUGH 0.02',\n    '#define DISCARD_ALPHA (alphaTest / (2.2 - 1.2 * ratio))',\n    'uniform sampler2D map;',\n    'uniform vec3 color;',\n    'uniform float opacity;',\n    'uniform float alphaTest;',\n    'varying vec2 vUV;',\n\n    'float median(float r, float g, float b) {',\n    '  return max(min(r, g), min(max(r, g), b));',\n    '}',\n    'void main() {',\n    '  vec3 sample = 1.0 - texture2D(map, vUV).rgb;',\n    '  float sigDist = median(sample.r, sample.g, sample.b) - 0.5;',\n    '  float alpha = clamp(sigDist/fwidth(sigDist) + 0.5, 0.0, 1.0);',\n    '  float dscale = 0.353505;',\n    '  vec2 duv = dscale * (dFdx(vUV) + dFdy(vUV));',\n    '  float isBigEnough = max(abs(duv.x), abs(duv.y));',\n    // When texel is too small, blend raw alpha value rather than supersampling.\n    // FIXME: Experimentally determined constant.\n    '  if (isBigEnough > BIG_ENOUGH) {',\n    '    float ratio = BIG_ENOUGH / isBigEnough;',\n    '    alpha = ratio * alpha + (1.0 - ratio) * (sigDist + 0.5);',\n    '  }',\n    // When texel is big enough, do standard alpha test.\n    // FIXME: Experimentally determined constant.\n    // Looks much better if we *don't* do this, but do we get Z fighting?\n    '  if (isBigEnough <= BIG_ENOUGH && alpha < alphaTest) { discard; return; }',\n    // Else, do modified alpha test.\n    // FIXME: Experimentally determined constant.\n    '  if (alpha < alphaTest * MODIFIED_ALPHATEST) { discard; return; }',\n    '  gl_FragColor = vec4(color.xyz, alpha * opacity);',\n    '}'\n  ].join('\\n')\n});\n","var registerShader = require('../core/shader').registerShader;\n\n/**\n * Signed distance field.\n * Used by text component.\n */\nmodule.exports.Shader = registerShader('sdf', {\n  schema: {\n    alphaTest: {type: 'number', is: 'uniform', default: 0.5},\n    color: {type: 'color', is: 'uniform', default: 'white'},\n    map: {type: 'map', is: 'uniform'},\n    opacity: {type: 'number', is: 'uniform', default: 1.0}\n  },\n\n  raw: true,\n\n  vertexShader: [\n    'attribute vec2 uv;',\n    'attribute vec3 position;',\n    'uniform mat4 projectionMatrix;',\n    'uniform mat4 modelViewMatrix;',\n    'varying vec2 vUV;',\n    'void main(void) {',\n    '  gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);',\n    '  vUV = uv;',\n    '}'\n  ].join('\\n'),\n\n  fragmentShader: [\n    '#ifdef GL_OES_standard_derivatives',\n    '#extension GL_OES_standard_derivatives: enable',\n    '#endif',\n\n    'precision highp float;',\n    // FIXME: experimentally determined constants\n    '#define BIG_ENOUGH 0.001',\n    '#define MODIFIED_ALPHATEST (0.02 * isBigEnough / BIG_ENOUGH)',\n    '#define ALL_SMOOTH 0.4',\n    '#define ALL_ROUGH 0.02',\n    '#define DISCARD_ALPHA (alphaTest / (2.2 - 1.2 * ratio))',\n    'uniform sampler2D map;',\n    'uniform vec3 color;',\n    'uniform float opacity;',\n    'uniform float alphaTest;',\n    'varying vec2 vUV;',\n    '#ifdef GL_OES_standard_derivatives',\n    'float contour(float width, float value) {',\n    '  return smoothstep(0.5 - value, 0.5 + value, width);',\n    '}',\n    '#else',\n    'float aastep(float value, float afwidth) {',\n    '  return smoothstep(0.5 - afwidth, 0.5 + afwidth, value);',\n    '}',\n    '#endif',\n    'void main() {',\n    '#ifdef GL_OES_standard_derivatives',\n    // when we have derivatives and can get texel size etc., that allows supersampling etc.\n    '  vec2 uv = vUV;',\n    '  vec4 texColor = texture2D(map, uv);',\n    '  float dist = texColor.a;',\n    '  float width = fwidth(dist);',\n    '  float alpha = contour(dist, width);',\n    '  float dscale = 0.353505;',\n    '  vec2 duv = dscale * (dFdx(uv) + dFdy(uv));',\n    '  float isBigEnough = max(abs(duv.x), abs(duv.y));',\n    // when texel is too small, blend raw alpha value rather than supersampling etc.\n    // FIXME: experimentally determined constant\n    '  if (isBigEnough > BIG_ENOUGH) {',\n    '    float ratio = BIG_ENOUGH / isBigEnough;',\n    '    alpha = ratio * alpha + (1.0 - ratio) * dist;',\n    '  }',\n    // otherwise do weighted supersampling\n    // FIXME: why this weighting?\n    '  else if (isBigEnough <= BIG_ENOUGH) {',\n    '    vec4 box = vec4 (uv - duv, uv + duv);',\n    '    alpha = (alpha + 0.5 * (',\n    '      contour(texture2D(map, box.xy).a, width)',\n    '      + contour(texture2D(map, box.zw).a, width)',\n    '      + contour(texture2D(map, box.xw).a, width)',\n    '      + contour(texture2D(map, box.zy).a, width)',\n    '    )) / 3.0;',\n    '  }',\n    // when texel is big enough, do standard alpha test\n    // FIXME: experimentally determined constant\n    // looks much better if we DON'T do this, but do we get Z fighting etc.?\n    '  if (isBigEnough <= BIG_ENOUGH && alpha < alphaTest) { discard; return; }',\n    // else do modified alpha test\n    // FIXME: experimentally determined constant\n    '  if (alpha < alphaTest * MODIFIED_ALPHATEST) { discard; return; }',\n    '#else',\n    '  vec4 texColor = texture2D(map, vUV);',\n    '  float value = texColor.a;',\n    // when we don't have derivatives, use approximations\n    // FIXME: if we understood font pixel dimensions, this could probably be improved\n    '  float afwidth = (1.0 / 32.0) * (1.4142135623730951 / (2.0 * gl_FragCoord.w));',\n    '  float alpha = aastep(value, afwidth);',\n    // use gl_FragCoord.w to guess when we should blend\n    // FIXME: if we understood font pixel dimensions, this could probably be improved\n    '  float ratio = (gl_FragCoord.w >= ALL_SMOOTH) ? 1.0 : (gl_FragCoord.w < ALL_ROUGH) ? 0.0 : (gl_FragCoord.w - ALL_ROUGH) / (ALL_SMOOTH - ALL_ROUGH);',\n    '  if (alpha < alphaTest) { if (ratio >= 1.0) { discard; return; } alpha = 0.0; }',\n    '  alpha = alpha * ratio + (1.0 - ratio) * value;',\n    '  if (ratio < 1.0)',\n    '    if (alpha <= DISCARD_ALPHA) { discard; return; }',\n    '#endif',\n    '  gl_FragColor = vec4(color, opacity * alpha);',\n    '}'\n  ].join('\\n')\n});\n","var registerShader = require('../core/shader').registerShader;\nvar THREE = require('../lib/three');\nvar utils = require('../utils/');\n\nvar CubeLoader = new THREE.CubeTextureLoader();\nvar texturePromises = {};\n\n/**\n * Standard (physically-based) shader using THREE.MeshStandardMaterial.\n */\nmodule.exports.Shader = registerShader('standard', {\n  schema: {\n    ambientOcclusionMap: {type: 'map'},\n    ambientOcclusionMapIntensity: {default: 1},\n    ambientOcclusionTextureOffset: {type: 'vec2'},\n    ambientOcclusionTextureRepeat: {type: 'vec2', default: {x: 1, y: 1}},\n\n    color: {type: 'color'},\n\n    displacementMap: {type: 'map'},\n    displacementScale: {default: 1},\n    displacementBias: {default: 0.5},\n    displacementTextureOffset: {type: 'vec2'},\n    displacementTextureRepeat: {type: 'vec2', default: {x: 1, y: 1}},\n    emissive: {type: 'color', default: '#000'},\n    emissiveIntensity: {default: 1},\n    envMap: {default: ''},\n\n    fog: {default: true},\n    height: {default: 256},\n    metalness: {default: 0.0, min: 0.0, max: 1.0},\n\n    normalMap: {type: 'map'},\n    normalScale: {type: 'vec2', default: {x: 1, y: 1}},\n    normalTextureOffset: {type: 'vec2'},\n    normalTextureRepeat: {type: 'vec2', default: {x: 1, y: 1}},\n\n    offset: {type: 'vec2', default: {x: 0, y: 0}},\n    repeat: {type: 'vec2', default: {x: 1, y: 1}},\n    roughness: {default: 0.5, min: 0.0, max: 1.0},\n    sphericalEnvMap: {type: 'map'},\n    src: {type: 'map'},\n    width: {default: 512},\n    wireframe: {default: false},\n    wireframeLinewidth: {default: 2}\n  },\n\n  /**\n   * Initializes the shader.\n   * Adds a reference from the scene to this entity as the camera.\n   */\n  init: function (data) {\n    this.material = new THREE.MeshStandardMaterial(getMaterialData(data));\n    utils.material.updateMap(this, data);\n    if (data.normalMap) { utils.material.updateDistortionMap('normal', this, data); }\n    if (data.displacementMap) { utils.material.updateDistortionMap('displacement', this, data); }\n    if (data.ambientOcclusionMap) { utils.material.updateDistortionMap('ambientOcclusion', this, data); }\n    this.updateEnvMap(data);\n  },\n\n  update: function (data) {\n    this.updateMaterial(data);\n    utils.material.updateMap(this, data);\n    if (data.normalMap) { utils.material.updateDistortionMap('normal', this, data); }\n    if (data.displacementMap) { utils.material.updateDistortionMap('displacement', this, data); }\n    if (data.ambientOcclusionMap) { utils.material.updateDistortionMap('ambientOcclusion', this, data); }\n    this.updateEnvMap(data);\n  },\n\n  /**\n   * Updating existing material.\n   *\n   * @param {object} data - Material component data.\n   * @returns {object} Material.\n   */\n  updateMaterial: function (data) {\n    var material = this.material;\n    data = getMaterialData(data);\n    Object.keys(data).forEach(function (key) {\n      material[key] = data[key];\n    });\n  },\n\n  /**\n   * Handle environment cubemap. Textures are cached in texturePromises.\n   */\n  updateEnvMap: function (data) {\n    var self = this;\n    var material = this.material;\n    var envMap = data.envMap;\n    var sphericalEnvMap = data.sphericalEnvMap;\n\n    // No envMap defined or already loading.\n    if ((!envMap && !sphericalEnvMap) || this.isLoadingEnvMap) {\n      material.envMap = null;\n      material.needsUpdate = true;\n      return;\n    }\n    this.isLoadingEnvMap = true;\n\n    // if a spherical env map is defined then use it.\n    if (sphericalEnvMap) {\n      this.el.sceneEl.systems.material.loadTexture(sphericalEnvMap, {src: sphericalEnvMap}, function textureLoaded (texture) {\n        self.isLoadingEnvMap = false;\n        texture.mapping = THREE.SphericalReflectionMapping;\n        material.envMap = texture;\n        utils.material.handleTextureEvents(self.el, texture);\n        material.needsUpdate = true;\n      });\n      return;\n    }\n\n    // Another material is already loading this texture. Wait on promise.\n    if (texturePromises[envMap]) {\n      texturePromises[envMap].then(function (cube) {\n        self.isLoadingEnvMap = false;\n        material.envMap = cube;\n        utils.material.handleTextureEvents(self.el, cube);\n        material.needsUpdate = true;\n      });\n      return;\n    }\n\n    // Material is first to load this texture. Load and resolve texture.\n    texturePromises[envMap] = new Promise(function (resolve) {\n      utils.srcLoader.validateCubemapSrc(envMap, function loadEnvMap (urls) {\n        CubeLoader.load(urls, function (cube) {\n          // Texture loaded.\n          self.isLoadingEnvMap = false;\n          material.envMap = cube;\n          utils.material.handleTextureEvents(self.el, cube);\n          resolve(cube);\n        });\n      });\n    });\n  }\n});\n\n/**\n * Builds and normalize material data, normalizing stuff along the way.\n *\n * @param {object} data - Material data.\n * @returns {object} data - Processed material data.\n */\nfunction getMaterialData (data) {\n  var newData = {\n    color: new THREE.Color(data.color),\n    emissive: new THREE.Color(data.emissive),\n    emissiveIntensity: data.emissiveIntensity,\n    fog: data.fog,\n    metalness: data.metalness,\n    roughness: data.roughness,\n    wireframe: data.wireframe,\n    wireframeLinewidth: data.wireframeLinewidth\n  };\n\n  if (data.normalMap) { newData.normalScale = data.normalScale; }\n\n  if (data.ambientOcclusionMap) { newData.aoMapIntensity = data.ambientOcclusionMapIntensity; }\n\n  if (data.displacementMap) {\n    newData.displacementScale = data.displacementScale;\n    newData.displacementBias = data.displacementBias;\n  }\n\n  return newData;\n}\n","var bind = require('../utils/bind');\nvar constants = require('../constants/');\nvar registerSystem = require('../core/system').registerSystem;\n\nvar DEFAULT_CAMERA_ATTR = 'data-aframe-default-camera';\n\n/**\n * Camera system. Manages which camera is active among multiple cameras in scene.\n *\n * @member {object} activeCameraEl - Active camera entity.\n */\nmodule.exports.System = registerSystem('camera', {\n  init: function () {\n    this.activeCameraEl = null;\n    // Wait for all entities to fully load before checking for existence of camera.\n    // Since entities wait for <a-assets> to load, any cameras attaching to the scene\n    // will do so asynchronously.\n    this.sceneEl.addEventListener('loaded', bind(this.setupDefaultCamera, this));\n  },\n\n  /**\n   * Create a default camera if user has not added one during the initial scene traversal.\n   *\n   * Default camera offset height is at average eye level (~1.6m).\n   */\n  setupDefaultCamera: function () {\n    var sceneEl = this.sceneEl;\n    var defaultCameraEl;\n\n    // Camera already defined.\n    if (sceneEl.camera) {\n      sceneEl.emit('camera-ready', {cameraEl: sceneEl.camera.el});\n      return;\n    }\n\n    // Set up default camera.\n    defaultCameraEl = document.createElement('a-entity');\n    defaultCameraEl.setAttribute('position', '0 0 0');\n    defaultCameraEl.setAttribute(DEFAULT_CAMERA_ATTR, '');\n    defaultCameraEl.setAttribute('camera', {active: true, userHeight: constants.DEFAULT_CAMERA_HEIGHT});\n    defaultCameraEl.setAttribute('wasd-controls', '');\n    defaultCameraEl.setAttribute('look-controls', '');\n    defaultCameraEl.setAttribute(constants.AFRAME_INJECTED, '');\n    sceneEl.appendChild(defaultCameraEl);\n    sceneEl.addEventListener('enter-vr', this.removeDefaultOffset);\n    sceneEl.addEventListener('exit-vr', this.addDefaultOffset);\n    sceneEl.emit('camera-ready', {cameraEl: defaultCameraEl});\n  },\n\n  /**\n   * Set a different active camera.\n   * When we choose a (sort of) random scene camera as the replacement, set its `active` to\n   * true. The camera component will call `setActiveCamera` and handle passing the torch to\n   * the new camera.\n   */\n  disableActiveCamera: function () {\n    var cameraEls = this.sceneEl.querySelectorAll('[camera]');\n    var newActiveCameraEl = cameraEls[cameraEls.length - 1];\n    newActiveCameraEl.setAttribute('camera', 'active', true);\n  },\n\n  /**\n   * Set active camera to be used by renderer.\n   * Removes the default camera (if present).\n   * Disables all other cameras in the scene.\n   *\n   * @param {Element} newCameraEl - Entity with camera component.\n   */\n  setActiveCamera: function (newCameraEl) {\n    var cameraEl;\n    var cameraEls;\n    var i;\n    var newCamera;\n    var previousCamera = this.activeCameraEl;\n    var sceneEl = this.sceneEl;\n\n    // Same camera.\n    newCamera = newCameraEl.getObject3D('camera');\n    if (!newCamera || newCameraEl === this.activeCameraEl) { return; }\n\n    // Grab the default camera.\n    var defaultCameraWrapper = sceneEl.querySelector('[' + DEFAULT_CAMERA_ATTR + ']');\n    var defaultCameraEl = defaultCameraWrapper &&\n                          defaultCameraWrapper.querySelector('[camera]');\n\n    // Remove default camera if new camera is not the default camera.\n    if (newCameraEl !== defaultCameraEl) { removeDefaultCamera(sceneEl); }\n\n    // Make new camera active.\n    this.activeCameraEl = newCameraEl;\n    this.activeCameraEl.play();\n    sceneEl.camera = newCamera;\n\n    // Disable current camera\n    if (previousCamera) {\n      previousCamera.setAttribute('camera', 'active', false);\n    }\n\n    // Disable other cameras in the scene\n    cameraEls = sceneEl.querySelectorAll('[camera]');\n    for (i = 0; i < cameraEls.length; i++) {\n      cameraEl = cameraEls[i];\n      if (!cameraEl.isEntity || newCameraEl === cameraEl) { continue; }\n      cameraEl.setAttribute('camera', 'active', false);\n      cameraEl.pause();\n    }\n    sceneEl.emit('camera-set-active', {cameraEl: newCameraEl});\n  }\n});\n\n/**\n * Remove injected default camera from scene, if present.\n *\n * @param {Element} sceneEl\n */\nfunction removeDefaultCamera (sceneEl) {\n  var defaultCamera;\n  var camera = sceneEl.camera;\n  if (!camera) { return; }\n\n  // Remove default camera if present.\n  defaultCamera = sceneEl.querySelector('[' + DEFAULT_CAMERA_ATTR + ']');\n  if (!defaultCamera) { return; }\n  sceneEl.removeChild(defaultCamera);\n}\n","var geometries = require('../core/geometry').geometries;\nvar registerSystem = require('../core/system').registerSystem;\nvar THREE = require('../lib/three');\n\n/**\n * System for geometry component.\n * Handle geometry caching.\n *\n * @member {object} cache - Mapping of stringified component data to THREE.Geometry objects.\n * @member {object} cacheCount - Keep track of number of entities using a geometry to\n *         know whether to dispose on removal.\n */\nmodule.exports.System = registerSystem('geometry', {\n  init: function () {\n    this.cache = {};\n    this.cacheCount = {};\n  },\n\n  /**\n   * Reset cache. Mainly for testing.\n   */\n  clearCache: function () {\n    this.cache = {};\n    this.cacheCount = {};\n  },\n\n  /**\n   * Attempt to retrieve from cache.\n   *\n   * @returns {Object|null} A geometry if it exists, else null.\n   */\n  getOrCreateGeometry: function (data) {\n    var cache = this.cache;\n    var cachedGeometry;\n    var hash;\n\n    // Skip all caching logic.\n    if (data.skipCache) { return createGeometry(data); }\n\n    // Try to retrieve from cache first.\n    hash = this.hash(data);\n    cachedGeometry = cache[hash];\n    incrementCacheCount(this.cacheCount, hash);\n\n    if (cachedGeometry) { return cachedGeometry; }\n\n    // Create geometry.\n    cachedGeometry = createGeometry(data);\n\n    // Cache and return geometry.\n    cache[hash] = cachedGeometry;\n    return cachedGeometry;\n  },\n\n  /**\n   * Let system know that an entity is no longer using a geometry.\n   */\n  unuseGeometry: function (data) {\n    var cache = this.cache;\n    var cacheCount = this.cacheCount;\n    var geometry;\n    var hash;\n\n    if (data.skipCache) { return; }\n\n    hash = this.hash(data);\n\n    if (!cache[hash]) { return; }\n\n    decrementCacheCount(cacheCount, hash);\n\n    // Another entity is still using this geometry. No need to do anything.\n    if (cacheCount[hash] > 0) { return; }\n\n    // No more entities are using this geometry. Dispose.\n    geometry = cache[hash];\n    geometry.dispose();\n    delete cache[hash];\n    delete cacheCount[hash];\n  },\n\n  /**\n   * Use JSON.stringify to turn component data into hash.\n   * Should be deterministic within a single browser engine.\n   * If not, then look into json-stable-stringify.\n   */\n  hash: function (data) {\n    return JSON.stringify(data);\n  }\n});\n\n/**\n * Create geometry using component data.\n *\n * @param {object} data - Component data.\n * @returns {object} Geometry.\n */\nfunction createGeometry (data) {\n  var geometryType = data.primitive;\n  var GeometryClass = geometries[geometryType] && geometries[geometryType].Geometry;\n  var geometryInstance = new GeometryClass();\n\n  if (!GeometryClass) { throw new Error('Unknown geometry `' + geometryType + '`'); }\n\n  geometryInstance.init(data);\n  return toBufferGeometry(geometryInstance.geometry, data.buffer);\n}\n\n/**\n * Decreate count of entity using a geometry.\n */\nfunction decrementCacheCount (cacheCount, hash) {\n  cacheCount[hash]--;\n}\n\n/**\n * Increase count of entity using a geometry.\n */\nfunction incrementCacheCount (cacheCount, hash) {\n  cacheCount[hash] = cacheCount[hash] === undefined ? 1 : cacheCount[hash] + 1;\n}\n\n/**\n * Transform geometry to BufferGeometry if `doBuffer`.\n *\n * @param {object} geometry\n * @param {boolean} doBuffer\n * @returns {object} Geometry.\n */\nfunction toBufferGeometry (geometry, doBuffer) {\n  var bufferGeometry;\n  if (!doBuffer) { return geometry; }\n\n  bufferGeometry = new THREE.BufferGeometry().fromGeometry(geometry);\n  bufferGeometry.metadata = {type: geometry.type, parameters: geometry.parameters || {}};\n  geometry.dispose();  // Dispose no longer needed non-buffer geometry.\n  return bufferGeometry;\n}\n","require('./camera');\nrequire('./geometry');\nrequire('./light');\nrequire('./material');\nrequire('./shadow');\nrequire('./tracked-controls');\n\n","var registerSystem = require('../core/system').registerSystem;\nvar bind = require('../utils/bind');\nvar constants = require('../constants/');\n\nvar DEFAULT_LIGHT_ATTR = 'data-aframe-default-light';\n\n/**\n * Light system.\n *\n * Prescribes default lighting if not specified (one ambient, one directional).\n * Removes default lighting from the scene when a new light is added.\n *\n * @param {bool} defaultLights - Whether default lighting are defined.\n * @param {bool} userDefinedLights - Whether user lighting is defined.\n */\nmodule.exports.System = registerSystem('light', {\n  schema: {\n    defaultLightsEnabled: {default: true}\n  },\n\n  init: function () {\n    this.defaultLights = false;\n    this.userDefinedLights = false;\n    // Wait for all entities to fully load before checking for existence of lights.\n    // Since entities wait for <a-assets> to load, any lights attaching to the scene\n    // will do so asynchronously.\n    this.sceneEl.addEventListener('loaded', bind(this.setupDefaultLights, this));\n  },\n\n  /**\n   * Notify scene that light has been added and to remove the default.\n   *\n   * @param {object} el - element holding the light component.\n   */\n  registerLight: function (el) {\n    if (!el.hasAttribute(DEFAULT_LIGHT_ATTR)) {\n      // User added a light, remove default lights through DOM.\n      this.removeDefaultLights();\n      this.userDefinedLights = true;\n    }\n  },\n\n  removeDefaultLights: function () {\n    var defaultLights;\n    var sceneEl = this.sceneEl;\n\n    if (!this.defaultLights) { return; }\n    defaultLights = document.querySelectorAll('[' + DEFAULT_LIGHT_ATTR + ']');\n    for (var i = 0; i < defaultLights.length; i++) {\n      sceneEl.removeChild(defaultLights[i]);\n    }\n    this.defaultLights = false;\n  },\n\n  /**\n   * Prescibe default lights to the scene.\n   * Does so by injecting markup such that this state is not invisible.\n   * These lights are removed if the user adds any lights.\n   */\n  setupDefaultLights: function () {\n    var sceneEl = this.sceneEl;\n    var ambientLight;\n    var directionalLight;\n\n    if (this.userDefinedLights || this.defaultLights || !this.data.defaultLightsEnabled) {\n      return;\n    }\n\n    ambientLight = document.createElement('a-entity');\n    ambientLight.setAttribute('light', {color: '#BBB', type: 'ambient'});\n    ambientLight.setAttribute(DEFAULT_LIGHT_ATTR, '');\n    ambientLight.setAttribute(constants.AFRAME_INJECTED, '');\n    sceneEl.appendChild(ambientLight);\n\n    directionalLight = document.createElement('a-entity');\n    directionalLight.setAttribute('light', {color: '#FFF', intensity: 0.6, castShadow: true});\n    directionalLight.setAttribute('position', {x: -0.5, y: 1, z: 1});\n    directionalLight.setAttribute(DEFAULT_LIGHT_ATTR, '');\n    directionalLight.setAttribute(constants.AFRAME_INJECTED, '');\n    sceneEl.appendChild(directionalLight);\n\n    this.defaultLights = true;\n  }\n});\n","var registerSystem = require('../core/system').registerSystem;\nvar THREE = require('../lib/three');\nvar utils = require('../utils/');\nvar isHLS = require('../utils/material').isHLS;\n\nvar bind = utils.bind;\nvar debug = utils.debug;\nvar error = debug('components:texture:error');\nvar TextureLoader = new THREE.TextureLoader();\nvar warn = debug('components:texture:warn');\n\nTextureLoader.setCrossOrigin('anonymous');\n\n/**\n * System for material component.\n * Handle material registration, updates (for fog), and texture caching.\n *\n * @member {object} materials - Registered materials.\n * @member {object} textureCounts - Number of times each texture is used. Tracked\n *         separately from textureCache, because the cache (1) is populated in\n *         multiple places, and (2) may be cleared at any time.\n * @member {object} textureCache - Texture cache for:\n *   - Images: textureCache has mapping of src -> repeat -> cached three.js texture.\n *   - Videos: textureCache has mapping of videoElement -> cached three.js texture.\n */\nmodule.exports.System = registerSystem('material', {\n  init: function () {\n    this.materials = {};\n    this.textureCounts = {};\n    this.textureCache = {};\n\n    this.sceneEl.addEventListener(\n      'materialtextureloaded',\n      bind(this.onMaterialTextureLoaded, this)\n    );\n  },\n\n  clearTextureCache: function () {\n    this.textureCache = {};\n  },\n\n  /**\n   * Determine whether `src` is a image or video. Then try to load the asset, then call back.\n   *\n   * @param {string, or element} src - Texture URL or element.\n   * @param {string} data - Relevant texture data used for caching.\n   * @param {function} cb - Callback to pass texture to.\n   */\n  loadTexture: function (src, data, cb) {\n    var self = this;\n\n    // Canvas.\n    if (src.tagName === 'CANVAS') {\n      this.loadCanvas(src, data, cb);\n      return;\n    }\n\n    // Video element.\n    if (src.tagName === 'VIDEO') {\n      if (!src.src && !src.srcObject && !src.childElementCount) {\n        warn('Video element was defined with neither `source` elements nor `src` / `srcObject` attributes.');\n      }\n      this.loadVideo(src, data, cb);\n      return;\n    }\n\n    utils.srcLoader.validateSrc(src, loadImageCb, loadVideoCb);\n    function loadImageCb (src) { self.loadImage(src, data, cb); }\n    function loadVideoCb (src) { self.loadVideo(src, data, cb); }\n  },\n\n  /**\n   * High-level function for loading image textures (THREE.Texture).\n   *\n   * @param {Element|string} src - Texture source.\n   * @param {object} data - Texture data.\n   * @param {function} cb - Callback to pass texture to.\n   */\n  loadImage: function (src, data, handleImageTextureLoaded) {\n    var hash = this.hash(data);\n    var textureCache = this.textureCache;\n\n    // Texture already being loaded or already loaded. Wait on promise.\n    if (textureCache[hash]) {\n      textureCache[hash].then(handleImageTextureLoaded);\n      return;\n    }\n\n    // Texture not yet being loaded. Start loading it.\n    textureCache[hash] = loadImageTexture(src, data);\n    textureCache[hash].then(handleImageTextureLoaded);\n  },\n\n  /**\n   * High-level function for loading canvas textures (THREE.Texture).\n   *\n   * @param {Element|string} src - Texture source.\n   * @param {object} data - Texture data.\n   * @param {function} cb - Callback to pass texture to.\n   */\n  loadCanvas: function (src, data, cb) {\n    // Hack readyState and HAVE_CURRENT_DATA on canvas to work with THREE.VideoTexture\n    src.readyState = 2;\n    src.HAVE_CURRENT_DATA = 2;\n    this.loadVideo(src, data, cb);\n  },\n\n    /**\n   * Load video texture (THREE.VideoTexture).\n   * Which is just an image texture that RAFs + needsUpdate.\n   * Note that creating a video texture is synchronous unlike loading an image texture.\n   * Made asynchronous to be consistent with image textures.\n   *\n   * @param {Element|string} src - Texture source.\n   * @param {object} data - Texture data.\n   * @param {function} cb - Callback to pass texture to.\n   */\n  loadVideo: function (src, data, cb) {\n    var hash;\n    var texture;\n    var textureCache = this.textureCache;\n    var videoEl;\n    var videoTextureResult;\n\n    function handleVideoTextureLoaded (result) {\n      result.texture.needsUpdate = true;\n      cb(result.texture, result.videoEl);\n    }\n\n    // Video element provided.\n    if (typeof src !== 'string') {\n      // Check cache before creating texture.\n      videoEl = src;\n      hash = this.hashVideo(data, videoEl);\n      if (textureCache[hash]) {\n        textureCache[hash].then(handleVideoTextureLoaded);\n        return;\n      }\n      // If not in cache, fix up the attributes then start to create the texture.\n      fixVideoAttributes(videoEl);\n    }\n\n    // Only URL provided. Use video element to create texture.\n    videoEl = videoEl || createVideoEl(src, data.width, data.height);\n\n    // Generated video element already cached. Use that.\n    hash = this.hashVideo(data, videoEl);\n    if (textureCache[hash]) {\n      textureCache[hash].then(handleVideoTextureLoaded);\n      return;\n    }\n\n    // Create new video texture.\n    texture = new THREE.VideoTexture(videoEl);\n    texture.minFilter = THREE.LinearFilter;\n    setTextureProperties(texture, data);\n\n    // If iOS and video is HLS, do some hacks.\n    if (this.sceneEl.isIOS &&\n        isHLS(videoEl.src || videoEl.getAttribute('src'),\n              videoEl.type || videoEl.getAttribute('type'))) {\n      // Actually BGRA. Tell shader to correct later.\n      texture.format = THREE.RGBAFormat;\n      texture.needsCorrectionBGRA = true;\n      // Apparently needed for HLS. Tell shader to correct later.\n      texture.flipY = false;\n      texture.needsCorrectionFlipY = true;\n    }\n\n    // Cache as promise to be consistent with image texture caching.\n    videoTextureResult = {texture: texture, videoEl: videoEl};\n    textureCache[hash] = Promise.resolve(videoTextureResult);\n    handleVideoTextureLoaded(videoTextureResult);\n  },\n\n  /**\n   * Create a hash of the material properties for texture cache key.\n   */\n  hash: function (data) {\n    if (data.src.tagName) {\n      // Since `data.src` can be an element, parse out the string if necessary for the hash.\n      data = utils.extendDeep({}, data);\n      data.src = data.src.src;\n    }\n    return JSON.stringify(data);\n  },\n\n  hashVideo: function (data, videoEl) {\n    return calculateVideoCacheHash(data, videoEl);\n  },\n\n  /**\n   * Keep track of material in case an update trigger is needed (e.g., fog).\n   *\n   * @param {object} material\n   */\n  registerMaterial: function (material) {\n    this.materials[material.uuid] = material;\n  },\n\n  /**\n   * Stop tracking material, and dispose of any textures not being used by\n   * another material component.\n   *\n   * @param {object} material\n   */\n  unregisterMaterial: function (material) {\n    delete this.materials[material.uuid];\n\n    // If any textures on this material are no longer in use, dispose of them.\n    var textureCounts = this.textureCounts;\n    Object.keys(material)\n      .filter(function (propName) {\n        return material[propName] && material[propName].isTexture;\n      })\n      .forEach(function (mapName) {\n        textureCounts[material[mapName].uuid]--;\n        if (textureCounts[material[mapName].uuid] <= 0) {\n          material[mapName].dispose();\n        }\n      });\n  },\n\n  /**\n   * Trigger update to all registered materials.\n   */\n  updateMaterials: function (material) {\n    var materials = this.materials;\n    Object.keys(materials).forEach(function (uuid) {\n      materials[uuid].needsUpdate = true;\n    });\n  },\n\n  /**\n   * Track textures used by material components, so that they can be safely\n   * disposed when no longer in use. Textures must be registered here, and not\n   * through registerMaterial(), because textures may not be attached at the\n   * time the material is registered.\n   *\n   * @param {Event} e\n   */\n  onMaterialTextureLoaded: function (e) {\n    if (!this.textureCounts[e.detail.texture.uuid]) {\n      this.textureCounts[e.detail.texture.uuid] = 0;\n    }\n    this.textureCounts[e.detail.texture.uuid]++;\n  }\n});\n\n/**\n * Calculates consistent hash from a video element using its attributes.\n * If the video element has an ID, use that.\n * Else build a hash that looks like `src:myvideo.mp4;height:200;width:400;`.\n *\n * @param data {object} - Texture data such as repeat.\n * @param videoEl {Element} - Video element.\n * @returns {string}\n */\nfunction calculateVideoCacheHash (data, videoEl) {\n  var i;\n  var id = videoEl.getAttribute('id');\n  var hash;\n  var videoAttributes;\n\n  if (id) { return id; }\n\n  // Calculate hash using sorted video attributes.\n  hash = '';\n  videoAttributes = data || {};\n  for (i = 0; i < videoEl.attributes.length; i++) {\n    videoAttributes[videoEl.attributes[i].name] = videoEl.attributes[i].value;\n  }\n  Object.keys(videoAttributes).sort().forEach(function (name) {\n    hash += name + ':' + videoAttributes[name] + ';';\n  });\n\n  return hash;\n}\n\n/**\n * Load image texture.\n *\n * @private\n * @param {string|object} src - An <img> element or url to an image file.\n * @param {object} data - Data to set texture properties like `repeat`.\n * @returns {Promise} Resolves once texture is loaded.\n */\nfunction loadImageTexture (src, data) {\n  return new Promise(doLoadImageTexture);\n\n  function doLoadImageTexture (resolve, reject) {\n    var isEl = typeof src !== 'string';\n\n    function resolveTexture (texture) {\n      setTextureProperties(texture, data);\n      texture.needsUpdate = true;\n      resolve(texture);\n    }\n\n    // Create texture from an element.\n    if (isEl) {\n      resolveTexture(new THREE.Texture(src));\n      return;\n    }\n\n    // Request and load texture from src string. THREE will create underlying element.\n    // Use THREE.TextureLoader (src, onLoad, onProgress, onError) to load texture.\n    TextureLoader.load(\n      src,\n      resolveTexture,\n      function () { /* no-op */ },\n      function (xhr) {\n        error('`$s` could not be fetched (Error code: %s; Response: %s)', xhr.status,\n              xhr.statusText);\n      }\n    );\n  }\n}\n\n/**\n * Set texture properties such as repeat and offset.\n *\n * @param {object} data - With keys like `repeat`.\n */\nfunction setTextureProperties (texture, data) {\n  var offset = data.offset || {x: 0, y: 0};\n  var repeat = data.repeat || {x: 1, y: 1};\n  var npot = data.npot || false;\n\n  // To support NPOT textures, wrap must be ClampToEdge (not Repeat),\n  // and filters must not use mipmaps (i.e. Nearest or Linear).\n  if (npot) {\n    texture.wrapS = THREE.ClampToEdgeWrapping;\n    texture.wrapT = THREE.ClampToEdgeWrapping;\n    texture.magFilter = THREE.LinearFilter;\n    texture.minFilter = THREE.LinearFilter;\n  }\n\n  // Don't bother setting repeat if it is 1/1. Power-of-two is required to repeat.\n  if (repeat.x !== 1 || repeat.y !== 1) {\n    texture.wrapS = THREE.RepeatWrapping;\n    texture.wrapT = THREE.RepeatWrapping;\n    texture.repeat.set(repeat.x, repeat.y);\n  }\n  // Don't bother setting offset if it is 0/0.\n  if (offset.x !== 0 || offset.y !== 0) {\n    texture.offset.set(offset.x, offset.y);\n  }\n}\n\n/**\n * Create video element to be used as a texture.\n *\n * @param {string} src - Url to a video file.\n * @param {number} width - Width of the video.\n * @param {number} height - Height of the video.\n * @returns {Element} Video element.\n */\nfunction createVideoEl (src, width, height) {\n  var videoEl = document.createElement('video');\n  videoEl.width = width;\n  videoEl.height = height;\n  // Support inline videos for iOS webviews.\n  videoEl.setAttribute('playsinline', '');\n  videoEl.setAttribute('webkit-playsinline', '');\n  videoEl.autoplay = true;\n  videoEl.loop = true;\n  videoEl.crossOrigin = 'anonymous';\n  videoEl.addEventListener('error', function () {\n    warn('`$s` is not a valid video', src);\n  }, true);\n  videoEl.src = src;\n  return videoEl;\n}\n\n/**\n * Fixes a video element's attributes to prevent developers from accidentally passing the\n * wrong attribute values to commonly misused video attributes.\n *\n * <video> does not treat `autoplay`, `controls`, `crossorigin`, `loop`, and `preload` as\n * as booleans. Existence of those attributes will mean truthy.\n *\n * For example, translates <video loop=\"false\"> to <video>.\n *\n * @see https://developer.mozilla.org/docs/Web/HTML/Element/video#Attributes\n * @param {Element} videoEl - Video element.\n * @returns {Element} Video element with the correct properties updated.\n */\nfunction fixVideoAttributes (videoEl) {\n  videoEl.autoplay = videoEl.hasAttribute('autoplay') && videoEl.getAttribute('autoplay') !== 'false';\n  videoEl.controls = videoEl.hasAttribute('controls') && videoEl.getAttribute('controls') !== 'false';\n  if (videoEl.getAttribute('loop') === 'false') {\n    videoEl.removeAttribute('loop');\n  }\n  if (videoEl.getAttribute('preload') === 'false') {\n    videoEl.preload = 'none';\n  }\n  videoEl.crossOrigin = videoEl.crossOrigin || 'anonymous';\n  // To support inline videos in iOS webviews.\n  videoEl.setAttribute('playsinline', '');\n  videoEl.setAttribute('webkit-playsinline', '');\n  return videoEl;\n}\n","var registerSystem = require('../core/system').registerSystem;\nvar THREE = require('../lib/three');\n\nvar SHADOW_MAP_TYPE_MAP = {\n  basic: THREE.BasicShadowMap,\n  pcf: THREE.PCFShadowMap,\n  pcfsoft: THREE.PCFSoftShadowMap\n};\n\n/**\n * Shadow system.\n *\n * Enabled automatically when one or more shadow components are added to the scene, the system sets\n * options on the WebGLRenderer for configuring shadow appearance.\n */\nmodule.exports.System = registerSystem('shadow', {\n  schema: {\n    autoUpdate: {default: true},\n    renderReverseSided: {default: true},\n    renderSingleSided: {default: true},\n    type: {default: 'pcf', oneOf: ['basic', 'pcf', 'pcfsoft']}\n  },\n\n  init: function () {\n    var sceneEl = this.sceneEl;\n    var data = this.data;\n\n    this.shadowMapEnabled = false;\n\n    if (!sceneEl.renderer) { return; }  // For tests.\n\n    sceneEl.renderer.shadowMap.type = SHADOW_MAP_TYPE_MAP[data.type];\n    sceneEl.renderer.shadowMap.renderReverseSided = data.renderReverseSided;\n    sceneEl.renderer.shadowMap.renderSingleSided = data.renderSingleSided;\n    sceneEl.renderer.shadowMap.autoUpdate = data.autoUpdate;\n    this.setShadowMapEnabled(this.shadowMapEnabled);\n  },\n\n  /**\n   * Enables/disables the renderer shadow map.\n   * @param {boolean} enabled\n   */\n  setShadowMapEnabled: function (enabled) {\n    var renderer = this.sceneEl.renderer;\n    this.shadowMapEnabled = enabled;\n    if (renderer) {\n      renderer.shadowMap.enabled = enabled;\n    }\n  }\n});\n","var registerSystem = require('../core/system').registerSystem;\nvar utils = require('../utils');\n\n/**\n * Tracked controls system.\n * Maintain list with available tracked controllers.\n */\nmodule.exports.System = registerSystem('tracked-controls', {\n  init: function () {\n    var self = this;\n\n    this.controllers = [];\n\n    this.updateControllerList(navigator.getGamepads && navigator.getGamepads());\n    this.throttledUpdateControllerList = utils.throttle(this.updateControllerList, 500, this);\n\n    if (!navigator.getVRDisplays) { return; }\n\n    this.sceneEl.addEventListener('enter-vr', function () {\n      navigator.getVRDisplays().then(function (displays) {\n        if (displays.length) { self.vrDisplay = displays[0]; }\n      });\n    });\n  },\n\n  tick: function () {\n    var gamepads;\n    // Call getGamepads for Chrome.\n    gamepads = navigator.getGamepads && navigator.getGamepads();\n    this.throttledUpdateControllerList(gamepads);\n  },\n\n  /**\n   * Update controller list.\n   */\n  updateControllerList: function (gamepads) {\n    var controllers = this.controllers;\n    var gamepad;\n    var i;\n    var prevCount;\n\n    if (!gamepads) { return; }\n\n    prevCount = controllers.length;\n    controllers.length = 0;\n    for (i = 0; i < gamepads.length; ++i) {\n      gamepad = gamepads[i];\n      if (gamepad && gamepad.pose) {\n        controllers.push(gamepad);\n      }\n    }\n\n    if (controllers.length !== prevCount) {\n      this.el.emit('controllersupdated', undefined, false);\n    }\n  }\n});\n","/**\n * Faster version of Function.prototype.bind\n * @param {Function} fn - Function to wrap.\n * @param {Object} ctx - What to bind as context.\n * @param {...*} arguments - Arguments to pass through.\n */\nmodule.exports = function bind (fn, ctx/* , arg1, arg2 */) {\n  return (function (prependedArgs) {\n    return function bound () {\n      // Concat the bound function arguments with those passed to original bind\n      var args = prependedArgs.concat(Array.prototype.slice.call(arguments, 0));\n      return fn.apply(ctx, args);\n    };\n  })(Array.prototype.slice.call(arguments, 2));\n};\n","/* global THREE */\nvar debug = require('./debug');\nvar extend = require('object-assign');\n\nvar warn = debug('utils:coordinates:warn');\n\n// Coordinate string regex. Handles negative, positive, and decimals.\nvar regex = /^\\s*((-?\\d*\\.{0,1}\\d+(e-?\\d+)?)\\s+){2,3}(-?\\d*\\.{0,1}\\d+(e-?\\d+)?)\\s*$/;\nmodule.exports.regex = regex;\n\n/**\n * Parses coordinates from an \"x y z\" string.\n * Example: \"3 10 -5\" to {x: 3, y: 10, z: -5}.\n *\n * @param {string} val - An \"x y z\" string.\n * @param {string} defaults - fallback value.\n * @returns {object} An object with keys [x, y, z].\n */\nfunction parse (value, defaultVec) {\n  var coordinate;\n  var vec;\n\n  if (value && value instanceof Object) {\n    if (defaultVec) {\n      value.x = value.x === undefined ? defaultVec.x : value.x;\n      value.y = value.y === undefined ? defaultVec.y : value.y;\n      value.z = value.z === undefined ? defaultVec.z : value.z;\n      value.w = value.w === undefined ? defaultVec.w : value.w;\n    }\n    return vecParseFloat(value);\n  }\n\n  if (value === null || value === undefined) {\n    return typeof defaultVec === 'object' ? extend({}, defaultVec) : defaultVec;\n  }\n\n  coordinate = value.trim().replace(/\\s+/g, ' ').split(' ');\n  vec = {};\n  vec.x = coordinate[0] || defaultVec && defaultVec.x;\n  vec.y = coordinate[1] || defaultVec && defaultVec.y;\n  vec.z = coordinate[2] || defaultVec && defaultVec.z;\n  vec.w = coordinate[3] || defaultVec && defaultVec.w;\n  return vecParseFloat(vec);\n}\nmodule.exports.parse = parse;\n\n/**\n * Stringify coordinates from an object with keys [x y z].\n * Example: {x: 3, y: 10, z: -5} to \"3 10 -5\".\n *\n * @param {object|string} data - An object with keys [x y z].\n * @returns {string} An \"x y z\" string.\n */\nfunction stringify (data) {\n  if (typeof data !== 'object') { return data; }\n  return [data.x, data.y, data.z, data.w].join(' ').trim();\n}\nmodule.exports.stringify = stringify;\n\n/**\n * @returns {bool}\n */\nfunction isCoordinates (value) {\n  return regex.test(value);\n}\nmodule.exports.isCoordinates = isCoordinates;\n\nmodule.exports.isCoordinate = function (value) {\n  warn('`AFRAME.utils.isCoordinate` has been renamed to `AFRAME.utils.isCoordinates`');\n  return isCoordinates(value);\n};\n\nfunction vecParseFloat (vec) {\n  var key;\n  for (key in vec) {\n    if (vec[key] === undefined) {\n      delete vec[key];\n      continue;\n    }\n    if (vec[key].constructor === String) {\n      vec[key] = parseFloat(vec[key], 10);\n    }\n  }\n  return vec;\n}\n\n/**\n * Convert {x, y, z} object to three.js Vector3.\n */\nmodule.exports.toVector3 = function (vec3) {\n  return new THREE.Vector3(vec3.x, vec3.y, vec3.z);\n};\n","var debugLib = require('debug');\nvar extend = require('object-assign');\n\nvar settings = {\n  colors: {\n    debug: 'gray',\n    error: 'red',\n    info: 'gray',\n    warn: 'orange'\n  }\n};\n\n/**\n * Monkeypatches `debug` so we can colorize error/warning messages.\n *\n * (See issue: https://github.com/visionmedia/debug/issues/137)\n */\nvar debug = function (namespace) {\n  var d = debugLib(namespace);\n\n  d.color = getDebugNamespaceColor(namespace);\n\n  return d;\n};\nextend(debug, debugLib);\n\n/**\n * Returns the type of the namespace (e.g., `error`, `warn`).\n *\n * @param {String} namespace\n *   The debug logger's namespace (e.g., `components:geometry:warn`).\n * @returns {String} The type of the namespace (e.g., `warn`).\n * @api private\n */\nfunction getDebugNamespaceType (namespace) {\n  var chunks = namespace.split(':');\n\n  return chunks[chunks.length - 1];  // Return the last one\n}\n\n/**\n * Returns the color of the namespace (e.g., `orange`).\n *\n * @param {String} namespace\n *   The debug logger's namespace (e.g., `components:geometry:warn`).\n * @returns {String} The color of the namespace (e.g., `orange`).\n * @api private\n */\nfunction getDebugNamespaceColor (namespace) {\n  var type = getDebugNamespaceType(namespace);\n\n  var color = settings.colors && settings.colors[type];\n\n  return color || null;\n}\n\n/**\n * Returns `localStorage` if possible.\n *\n * This is necessary because Safari throws when a user disables\n * cookies or `localStorage` and you attempt to access it.\n *\n * @returns {localStorage}\n * @api private\n */\nfunction storage () {\n  try {\n    return window.localStorage;\n  } catch (e) {\n  }\n}\n\n/**\n * To enable console logging, type this in the Console of your Dev Tools:\n *\n *   localStorage.logs = 1\n *\n * To disable console logging:\n *\n *   localStorage.logs = 0\n *\n */\nvar ls = storage();\nif (ls && (parseInt(ls.logs, 10) || ls.logs === 'true')) {\n  debug.enable('*');\n} else {\n  debug.enable('*:error,*:info,*:warn');\n}\n\nif (process.browser) { window.logs = debug; }\n\nmodule.exports = debug;\n","var THREE = require('../lib/three');\nvar dolly = new THREE.Object3D();\nvar controls = new THREE.VRControls(dolly);\n\n/**\n * Determine if a headset is connected by checking if the orientation is available.\n */\nfunction checkHeadsetConnected () {\n  var orientation;\n  var vrDisplay = controls.getVRDisplay();\n\n  // If `isConnected` is available, just use that.\n  if (vrDisplay && 'isConnected' in vrDisplay) { return vrDisplay.isConnected; }\n\n  controls.update();\n  orientation = dolly.quaternion;\n  if (orientation._x !== 0 || orientation._y !== 0 || orientation._z !== 0) {\n    return true;\n  }\n  return false;\n}\nmodule.exports.checkHeadsetConnected = checkHeadsetConnected;\n\n/**\n * Check for positional tracking.\n */\nfunction checkHasPositionalTracking () {\n  var vrDisplay = controls.getVRDisplay();\n  if (isMobile() || isGearVR()) { return false; }\n  return vrDisplay && vrDisplay.capabilities.hasPosition;\n}\nmodule.exports.checkHasPositionalTracking = checkHasPositionalTracking;\n\n/**\n * Checks if browser is mobile.\n * @return {Boolean} True if mobile browser detected.\n */\nvar isMobile = (function () {\n  var _isMobile = false;\n  (function (a) {\n    // eslint-disable-next-line no-useless-escape\n    if (/(android|bb\\d+|meego).+mobile|avantgo|bada\\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a) || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\\-(n|u)|c55\\/|capi|ccwa|cdm\\-|cell|chtm|cldc|cmd\\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\\-s|devi|dica|dmob|do(c|p)o|ds(12|\\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\\-|_)|g1 u|g560|gene|gf\\-5|g\\-mo|go(\\.w|od)|gr(ad|un)|haie|hcit|hd\\-(m|p|t)|hei\\-|hi(pt|ta)|hp( i|ip)|hs\\-c|ht(c(\\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\\-(20|go|ma)|i230|iac( |\\-|\\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\\/)|klon|kpt |kwc\\-|kyo(c|k)|le(no|xi)|lg( g|\\/(k|l|u)|50|54|\\-[a-w])|libw|lynx|m1\\-w|m3ga|m50\\/|ma(te|ui|xo)|mc(01|21|ca)|m\\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\\-2|po(ck|rt|se)|prox|psio|pt\\-g|qa\\-a|qc(07|12|21|32|60|\\-[2-7]|i\\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\\-|oo|p\\-)|sdk\\/|se(c(\\-|0|1)|47|mc|nd|ri)|sgh\\-|shar|sie(\\-|m)|sk\\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\\-|v\\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\\-|tdg\\-|tel(i|m)|tim\\-|t\\-mo|to(pl|sh)|ts(70|m\\-|m3|m5)|tx\\-9|up(\\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\\-|your|zeto|zte\\-/i.test(a.substr(0, 4))) {\n      _isMobile = true;\n    }\n    if (isIOS() || isTablet() || isR7()) {\n      _isMobile = true;\n    }\n  })(window.navigator.userAgent || window.navigator.vendor || window.opera);\n\n  return function () { return _isMobile; };\n})();\nmodule.exports.isMobile = isMobile;\n\n/**\n *  Detect tablet devices.\n *  @param {string} mockUserAgent - Allow passing a mock user agent for testing.\n */\nfunction isTablet (mockUserAgent) {\n  var userAgent = mockUserAgent || window.navigator.userAgent;\n  return /ipad|Nexus (7|9)|xoom|sch-i800|playbook|tablet|kindle/i.test(userAgent);\n}\nmodule.exports.isTablet = isTablet;\n\nfunction isIOS () {\n  return /iPad|iPhone|iPod/.test(window.navigator.platform);\n}\nmodule.exports.isIOS = isIOS;\n\nfunction isGearVR () {\n  return /SamsungBrowser.+Mobile VR/i.test(window.navigator.userAgent);\n}\nmodule.exports.isGearVR = isGearVR;\n\nfunction isR7 () {\n  return /R7 Build/.test(window.navigator.userAgent);\n}\nmodule.exports.isR7 = isR7;\n\n/**\n * Checks mobile device orientation.\n * @return {Boolean} True if landscape orientation.\n */\nmodule.exports.isLandscape = function () {\n  var orientation = window.orientation;\n  if (isR7()) { orientation += 90; }\n  return orientation === 90 || orientation === -90;\n};\n\n/**\n * Check if device is iOS and older than version 10.\n */\nmodule.exports.isIOSOlderThan10 = function (userAgent) {\n  return /(iphone|ipod|ipad).*os.(7|8|9)/i.test(userAgent);\n};\n\n/**\n * Check if running in a browser or spoofed browser (bundler).\n * We need to check a node api that isn't mocked on either side.\n * `require` and `module.exports` are mocked in browser by bundlers.\n * `window` is mocked in node.\n * `process` is also mocked by browserify, but has custom properties.\n */\nmodule.exports.isBrowserEnvironment = !!(!process || process.browser);\n\n/**\n * Check if running in node on the server.\n */\nmodule.exports.isNodeEnvironment = !module.exports.isBrowserEnvironment;\n","/**\n * Split a delimited component property string (e.g., `material.color`) to an object\n * containing `component` name and `property` name. If there is no delimiter, just return the\n * string back.\n */\nmodule.exports.getComponentPropertyPath = function (str, delimiter) {\n  delimiter = delimiter || '.';\n  if (str.indexOf(delimiter) === -1) { return str; }\n  return str.split(delimiter);\n};\n\n/**\n * Get component property using encoded component name + component property name with a\n * delimiter.\n */\nmodule.exports.getComponentProperty = function (el, name, delimiter) {\n  var splitName;\n  delimiter = delimiter || '.';\n  if (name.indexOf(delimiter) !== -1) {\n    splitName = name.split(delimiter);\n    return el.getAttribute(splitName[0])[splitName[1]];\n  }\n  return el.getAttribute(name);\n};\n\n/**\n * Set component property using encoded component name + component property name with a\n * delimiter.\n */\nmodule.exports.setComponentProperty = function (el, name, value, delimiter) {\n  var data = {};\n  var splitName;\n  delimiter = delimiter || '.';\n  if (name.indexOf(delimiter) !== -1) {\n    splitName = name.split(delimiter);\n    data[splitName[1]] = value;\n    el.setAttribute(splitName[0], data);\n    return;\n  }\n  el.setAttribute(name, value);\n};\n","module.exports = function forceCanvasResizeSafariMobile (canvasEl) {\n  var width = canvasEl.style.width;\n  var height = canvasEl.style.height;\n  // Taken from webvr-polyfill (https://github.com/borismus/webvr-polyfill/blob/85f657cd502ec9417bf26b87c3cb2afa6a70e079/src/util.js#L200)\n  // iOS only workaround for https://bugs.webkit.org/show_bug.cgi?id=152556\n  // By changing the size 1 pixel and restoring the previous value\n  // we trigger a size recalculation cycle.\n  canvasEl.style.width = (parseInt(width, 10) + 1) + 'px';\n  canvasEl.style.height = (parseInt(height, 10) + 1) + 'px';\n  setTimeout(function () {\n    canvasEl.style.width = width;\n    canvasEl.style.height = height;\n  }, 200);\n};\n","/* global CustomEvent, location */\n/* Centralized place to reference utilities since utils is exposed to the user. */\nvar debug = require('./debug');\nvar deepAssign = require('deep-assign');\nvar device = require('./device');\nvar objectAssign = require('object-assign');\nvar objectPool = require('./object-pool');\n\nvar warn = debug('utils:warn');\n\nmodule.exports.bind = require('./bind');\nmodule.exports.coordinates = require('./coordinates');\nmodule.exports.debug = debug;\nmodule.exports.device = device;\nmodule.exports.entity = require('./entity');\nmodule.exports.forceCanvasResizeSafariMobile = require('./forceCanvasResizeSafariMobile');\nmodule.exports.material = require('./material');\nmodule.exports.objectPool = objectPool;\nmodule.exports.styleParser = require('./styleParser');\nmodule.exports.trackedControls = require('./tracked-controls');\n\nmodule.exports.checkHeadsetConnected = function () {\n  warn('`utils.checkHeadsetConnected` has moved to `utils.device.checkHeadsetConnected`');\n  return device.checkHeadsetConnected(arguments);\n};\nmodule.exports.isGearVR = function () {\n  warn('`utils.isGearVR` has moved to `utils.device.isGearVR`');\n  return device.isGearVR(arguments);\n};\nmodule.exports.isIOS = function () {\n  warn('`utils.isIOS` has moved to `utils.device.isIOS`');\n  return device.isIOS(arguments);\n};\nmodule.exports.isMobile = function () {\n  warn('`utils.isMobile has moved to `utils.device.isMobile`');\n  return device.isMobile(arguments);\n};\n\n/**\n * Returns throttle function that gets called at most once every interval.\n *\n * @param {function} functionToThrottle\n * @param {number} minimumInterval - Minimal interval between calls (milliseconds).\n * @param {object} optionalContext - If given, bind function to throttle to this context.\n * @returns {function} Throttled function.\n */\nmodule.exports.throttle = function (functionToThrottle, minimumInterval, optionalContext) {\n  var lastTime;\n  if (optionalContext) {\n    functionToThrottle = module.exports.bind(functionToThrottle, optionalContext);\n  }\n  return function () {\n    var time = Date.now();\n    var sinceLastTime = typeof lastTime === 'undefined' ? minimumInterval : time - lastTime;\n    if (typeof lastTime === 'undefined' || (sinceLastTime >= minimumInterval)) {\n      lastTime = time;\n      functionToThrottle.apply(null, arguments);\n    }\n  };\n};\n\n/**\n * Returns throttle function that gets called at most once every interval.\n * Uses the time/timeDelta timestamps provided by the global render loop for better perf.\n *\n * @param {function} functionToThrottle\n * @param {number} minimumInterval - Minimal interval between calls (milliseconds).\n * @param {object} optionalContext - If given, bind function to throttle to this context.\n * @returns {function} Throttled function.\n */\nmodule.exports.throttleTick = function (functionToThrottle, minimumInterval, optionalContext) {\n  var lastTime;\n  if (optionalContext) {\n    functionToThrottle = module.exports.bind(functionToThrottle, optionalContext);\n  }\n  return function (time, delta) {\n    var sinceLastTime = typeof lastTime === 'undefined' ? delta : time - lastTime;\n    if (typeof lastTime === 'undefined' || (sinceLastTime >= minimumInterval)) {\n      lastTime = time;\n      functionToThrottle(time, sinceLastTime);\n    }\n  };\n};\n\n/**\n * Returns debounce function that gets called only once after a set of repeated calls.\n *\n * @param {function} functionToDebounce\n * @param {number} wait - Time to wait for repeated function calls (milliseconds).\n * @param {boolean} immediate - Calls the function immediately regardless of if it should be waiting.\n * @returns {function} Debounced function.\n */\nmodule.exports.debounce = function (func, wait, immediate) {\n  var timeout;\n  return function () {\n    var context = this;\n    var args = arguments;\n    var later = function () {\n      timeout = null;\n      if (!immediate) func.apply(context, args);\n    };\n    var callNow = immediate && !timeout;\n    clearTimeout(timeout);\n    timeout = setTimeout(later, wait);\n    if (callNow) func.apply(context, args);\n  };\n};\n\n/**\n * Fires a custom DOM event.\n *\n * @param {Element} el Element on which to fire the event.\n * @param {String} name Name of the event.\n * @param {Object=} [data={bubbles: true, {detail: <el>}}]\n *   Data to pass as `customEventInit` to the event.\n */\nmodule.exports.fireEvent = function (el, name, data) {\n  data = data || {};\n  data.detail = data.detail || {};\n  data.detail.target = data.detail.target || el;\n  var evt = new CustomEvent(name, data);\n  el.dispatchEvent(evt);\n};\n\n/**\n * Mix the properties of source object(s) into a destination object.\n *\n * @param  {object} dest - The object to which properties will be copied.\n * @param  {...object} source - The object(s) from which properties will be copied.\n */\nmodule.exports.extend = objectAssign;\nmodule.exports.extendDeep = deepAssign;\n\nmodule.exports.clone = function (obj) {\n  return JSON.parse(JSON.stringify(obj));\n};\n\n/**\n * Checks if two values are equal.\n * Includes objects and arrays and nested objects and arrays.\n * Try to keep this function performant as it will be called often to see if a component\n * should be updated.\n *\n * @param {object} a - First object.\n * @param {object} b - Second object.\n * @returns {boolean} Whether two objects are deeply equal.\n */\nvar deepEqual = (function () {\n  var arrayPool = objectPool.createPool(function () { return []; });\n\n  return function (a, b) {\n    var key;\n    var keysA;\n    var keysB;\n    var i;\n    var valA;\n    var valB;\n\n    // If not objects or arrays, compare as values.\n    if (a === undefined || b === undefined || a === null || b === null ||\n        !(a && b && (a.constructor === Object && b.constructor === Object) ||\n                    (a.constructor === Array && b.constructor === Array))) {\n      return a === b;\n    }\n\n    // Different number of keys, not equal.\n    keysA = arrayPool.use();\n    keysB = arrayPool.use();\n    keysA.length = 0;\n    keysB.length = 0;\n    for (key in a) { keysA.push(key); }\n    for (key in b) { keysB.push(key); }\n    if (keysA.length !== keysB.length) {\n      arrayPool.recycle(keysA);\n      arrayPool.recycle(keysB);\n      return false;\n    }\n\n    // Return `false` at the first sign of inequality.\n    for (i = 0; i < keysA.length; ++i) {\n      valA = a[keysA[i]];\n      valB = b[keysA[i]];\n      // Check nested array and object.\n      if ((typeof valA === 'object' || typeof valB === 'object') ||\n          (Array.isArray(valA) && Array.isArray(valB))) {\n        if (valA === valB) { continue; }\n        if (!deepEqual(valA, valB)) {\n          arrayPool.recycle(keysA);\n          arrayPool.recycle(keysB);\n          return false;\n        }\n      } else if (valA !== valB) {\n        arrayPool.recycle(keysA);\n        arrayPool.recycle(keysB);\n        return false;\n      }\n    }\n\n    arrayPool.recycle(keysA);\n    arrayPool.recycle(keysB);\n    return true;\n  };\n})();\nmodule.exports.deepEqual = deepEqual;\n\n/**\n * Computes the difference between two objects.\n *\n * @param {object} a - First object to compare (e.g., oldData).\n * @param {object} b - Second object to compare (e.g., newData).\n * @returns {object}\n *   Difference object where set of keys note which values were not equal, and values are\n *   `b`'s values.\n */\nmodule.exports.diff = (function () {\n  var keys = [];\n\n  return function (a, b, targetObject) {\n    var aVal;\n    var bVal;\n    var bKey;\n    var diff;\n    var key;\n    var i;\n    var isComparingObjects;\n\n    diff = targetObject || {};\n\n    // Collect A keys.\n    keys.length = 0;\n    for (key in a) { keys.push(key); }\n\n    if (!b) { return diff; }\n\n    // Collect B keys.\n    for (bKey in b) {\n      if (keys.indexOf(bKey) === -1) {\n        keys.push(bKey);\n      }\n    }\n\n    for (i = 0; i < keys.length; i++) {\n      key = keys[i];\n      aVal = a[key];\n      bVal = b[key];\n      isComparingObjects = aVal && bVal &&\n                          aVal.constructor === Object && bVal.constructor === Object;\n      if ((isComparingObjects && !deepEqual(aVal, bVal)) ||\n          (!isComparingObjects && aVal !== bVal)) {\n        diff[key] = bVal;\n      }\n    }\n    return diff;\n  };\n})();\n\n/**\n * Returns whether we should capture this keyboard event for keyboard shortcuts.\n * @param {Event} event Event object.\n * @returns {Boolean} Whether the key event should be captured.\n */\nmodule.exports.shouldCaptureKeyEvent = function (event) {\n  if (event.metaKey) { return false; }\n  return document.activeElement === document.body;\n};\n\n/**\n * Splits a string into an array based on a delimiter.\n *\n * @param   {string=} [str='']        Source string\n * @param   {string=} [delimiter=' '] Delimiter to use\n * @returns {array}                   Array of delimited strings\n */\nmodule.exports.splitString = function (str, delimiter) {\n  if (typeof delimiter === 'undefined') { delimiter = ' '; }\n  // First collapse the whitespace (or whatever the delimiter is).\n  var regex = new RegExp(delimiter, 'g');\n  str = (str || '').replace(regex, delimiter);\n  // Then split.\n  return str.split(delimiter);\n};\n\n/**\n * Extracts data from the element given an object that contains expected keys.\n *\n * @param {Element} Source element.\n * @param {Object} [defaults={}] Object of default key-value pairs.\n * @returns {Object}\n */\nmodule.exports.getElData = function (el, defaults) {\n  defaults = defaults || {};\n  var data = {};\n  Object.keys(defaults).forEach(copyAttribute);\n  function copyAttribute (key) {\n    if (el.hasAttribute(key)) {\n      data[key] = el.getAttribute(key);\n    }\n  }\n  return data;\n};\n\n/**\n * Retrieves querystring value.\n * @param  {String} name Name of querystring key.\n * @return {String}      Value\n */\nmodule.exports.getUrlParameter = function (name) {\n  // eslint-disable-next-line no-useless-escape\n  name = name.replace(/[\\[]/, '\\\\[').replace(/[\\]]/, '\\\\]');\n  var regex = new RegExp('[\\\\?&]' + name + '=([^&#]*)');\n  var results = regex.exec(location.search);\n  return results === null ? '' : decodeURIComponent(results[1].replace(/\\+/g, ' '));\n};\n\n/**\n * Detects whether context is within iframe.\n */\nmodule.exports.isIframed = function () {\n  return window.top !== window.self;\n};\n\n/**\n * Finds all elements under the element that have the isScene\n * property set to true\n */\nmodule.exports.findAllScenes = function (el) {\n  var matchingElements = [];\n  var allElements = el.getElementsByTagName('*');\n  for (var i = 0, n = allElements.length; i < n; i++) {\n    if (allElements[i].isScene) {\n      // Element exists with isScene set.\n      matchingElements.push(allElements[i]);\n    }\n  }\n  return matchingElements;\n};\n\n// Must be at bottom to avoid circular dependency.\nmodule.exports.srcLoader = require('./src-loader');\n","var THREE = require('../lib/three');\n\nvar HLS_MIMETYPES = ['application/x-mpegurl', 'application/vnd.apple.mpegurl'];\n\n/**\n * Update `material` texture property (usually but not always `map`)\n * from `data` property (usually but not always `src`)\n *\n * @param {object} shader - A-Frame shader instance.\n * @param {object} data\n */\nmodule.exports.updateMapMaterialFromData = function (materialName, dataName, shader, data) {\n  var el = shader.el;\n  var material = shader.material;\n  var src = data[dataName];\n\n  // Because a single material / shader may have multiple textures,\n  // we need to remember the source value for this data property\n  // to avoid redundant operations which can be expensive otherwise\n  // (e.g. video texture loads).\n  if (!shader.materialSrcs) { shader.materialSrcs = {}; }\n\n  if (!src) {\n    // Forget the prior material src.\n    delete shader.materialSrcs[materialName];\n    // Remove the texture.\n    setMap(null);\n    return;\n  }\n\n  // Don't process if material src hasn't changed.\n  if (src === shader.materialSrcs[materialName]) { return; }\n\n  // Remember the new src for this texture (there may be multiple).\n  shader.materialSrcs[materialName] = src;\n\n  // If the new material src is already a texture, just use it.\n  if (src instanceof THREE.Texture) { setMap(src); } else {\n    // Load texture for the new material src.\n    // (And check if we should still use it once available in callback.)\n    el.sceneEl.systems.material.loadTexture(src,\n      {src: src, repeat: data.repeat, offset: data.offset, npot: data.npot},\n      checkSetMap);\n  }\n\n  function checkSetMap (texture) {\n    // If the source has been changed, don't use loaded texture.\n    if (shader.materialSrcs[materialName] !== src) { return; }\n    setMap(texture);\n  }\n\n  function setMap (texture) {\n    material[materialName] = texture;\n    material.needsUpdate = true;\n    handleTextureEvents(el, texture);\n  }\n};\n\n/**\n * Update `material.map` given `data.src`. For standard and flat shaders.\n *\n * @param {object} shader - A-Frame shader instance.\n * @param {object} data\n */\nmodule.exports.updateMap = function (shader, data) {\n  return module.exports.updateMapMaterialFromData('map', 'src', shader, data);\n};\n\n/**\n * Updates the material's maps which give the illusion of extra geometry.\n *\n * @param {string} longType - The friendly name of the map from the component e.g. ambientOcclusionMap becomes aoMap in THREE.js\n * @param {object} shader - A-Frame shader instance\n * @param {object} data\n */\nmodule.exports.updateDistortionMap = function (longType, shader, data) {\n  var shortType = longType;\n  if (longType === 'ambientOcclusion') { shortType = 'ao'; }\n  var el = shader.el;\n  var material = shader.material;\n  var src = data[longType + 'Map'];\n  var info = {};\n  info.src = src;\n\n  // Pass through the repeat and offset to be handled by the material loader.\n  info.offset = data[longType + 'TextureOffset'];\n  info.repeat = data[longType + 'TextureRepeat'];\n  info.wrap = data[longType + 'TextureWrap'];\n\n  if (src) {\n    if (src === shader[longType + 'TextureSrc']) { return; }\n\n    // Texture added or changed.\n    shader[longType + 'TextureSrc'] = src;\n    el.sceneEl.systems.material.loadTexture(src, info, setMap);\n    return;\n  }\n\n  // Texture removed.\n  if (!material.map) { return; }\n  setMap(null);\n\n  function setMap (texture) {\n    material[shortType + 'Map'] = texture;\n    material.needsUpdate = true;\n    handleTextureEvents(el, texture);\n  }\n};\n\n/**\n * Emit event on entities on texture-related events.\n *\n * @param {Element} el - Entity.\n * @param {object} texture - three.js Texture.\n */\nfunction handleTextureEvents (el, texture) {\n  if (!texture) { return; }\n\n  el.emit('materialtextureloaded', {src: texture.image, texture: texture});\n\n  // Video events.\n  if (!texture.image || texture.image.tagName !== 'VIDEO') { return; }\n\n  texture.image.addEventListener('loadeddata', function emitVideoTextureLoadedDataAll () {\n    // Check to see if we need to use iOS 10 HLS shader.\n    // Only override the shader if it is stock shader that we know doesn't correct.\n    if (!el.components || !el.components.material) { return; }\n\n    if (texture.needsCorrectionBGRA && texture.needsCorrectionFlipY &&\n        ['standard', 'flat'].indexOf(el.components.material.data.shader) !== -1) {\n      el.setAttribute('material', 'shader', 'ios10hls');\n    }\n\n    el.emit('materialvideoloadeddata', {src: texture.image, texture: texture});\n  });\n  texture.image.addEventListener('ended', function emitVideoTextureEndedAll () {\n    // Works for non-looping videos only.\n    el.emit('materialvideoended', {src: texture.image, texture: texture});\n  });\n}\nmodule.exports.handleTextureEvents = handleTextureEvents;\n\n/**\n * Given video element src and type, guess whether stream is HLS.\n *\n * @param {string} src - src from video element (generally URL to content).\n * @param {string} type - type from video element (generally MIME type if present).\n */\nmodule.exports.isHLS = function (src, type) {\n  if (type && HLS_MIMETYPES.includes(type.toLowerCase())) { return true; }\n  if (src && src.toLowerCase().indexOf('.m3u8') > 0) { return true; }\n  return false;\n};\n","/*\n  Adapted deePool by Kyle Simpson.\n  MIT License: http://getify.mit-license.org\n*/\nvar EMPTY_SLOT = Object.freeze(Object.create(null));\n\n// Default object factory.\nfunction defaultObjectFactory () { return {}; }\n\n/**\n * Create a new pool.\n */\nmodule.exports.createPool = function createPool (objectFactory) {\n  var objPool = [];\n  var nextFreeSlot = null;  // Pool location to look for a free object to use.\n\n  objectFactory = objectFactory || defaultObjectFactory;\n\n  function use () {\n    var objToUse;\n    if (nextFreeSlot === null || nextFreeSlot === objPool.length) {\n      grow(objPool.length || 5);\n    }\n    objToUse = objPool[nextFreeSlot];\n    objPool[nextFreeSlot++] = EMPTY_SLOT;\n    clearObject(objToUse);\n    return objToUse;\n  }\n\n  function recycle (obj) {\n    if (!(obj instanceof Object)) { return; }\n    if (nextFreeSlot === null || nextFreeSlot === -1) {\n      objPool[objPool.length] = obj;\n      return;\n    }\n    objPool[--nextFreeSlot] = obj;\n  }\n\n  function grow (count) {\n    var currentLength;\n    var i;\n\n    count = count === undefined ? objPool.length : count;\n    if (count > 0 && nextFreeSlot == null) {\n      nextFreeSlot = 0;\n    }\n\n    if (count > 0) {\n      currentLength = objPool.length;\n      objPool.length += Number(count);\n      for (i = currentLength; i < objPool.length; i++) {\n        // Add new obj to pool.\n        objPool[i] = objectFactory();\n      }\n    }\n\n    return objPool.length;\n  }\n\n  function size () {\n    return objPool.length;\n  }\n\n  return {\n    grow: grow,\n    pool: objPool,\n    recycle: recycle,\n    size: size,\n    use: use\n  };\n};\n\nfunction clearObject (obj) {\n  var key;\n  if (!(obj.constructor === Object)) { return; }\n  for (key in obj) { obj[key] = undefined; }\n}\nmodule.exports.clearObject = clearObject;\n","/* global Image, XMLHttpRequest */\nvar debug = require('./debug');\n\nvar warn = debug('utils:src-loader:warn');\n\n/**\n * Validate a texture, either as a selector or as a URL.\n * Detects whether `src` is pointing to an image or video and invokes the appropriate\n * callback.\n *\n * `src` will be passed into the callback\n *\n * @params {string|Element} src - URL or media element.\n * @params {function} isImageCb - callback if texture is an image.\n * @params {function} isVideoCb - callback if texture is a video.\n */\nfunction validateSrc (src, isImageCb, isVideoCb) {\n  checkIsImage(src, function isAnImageUrl (isImage) {\n    if (isImage) {\n      isImageCb(src);\n      return;\n    }\n    isVideoCb(src);\n  });\n}\n\n/**\n * Validates six images as a cubemap, either as selector or comma-separated\n * URLs.\n *\n * @param {string} src - A selector or comma-separated image URLs. Image URLs\n          must be wrapped by `url()`.\n * @param {string} src - A selector or comma-separated image URLs. Image URLs\n          must be wrapped by `url()`.\n */\nfunction validateCubemapSrc (src, cb) {\n  var aCubemap;\n  var cubemapSrcRegex = '';\n  var i;\n  var urls;\n  var validatedUrls = [];\n\n  for (i = 0; i < 5; i++) {\n    cubemapSrcRegex += '(url\\\\((?:[^\\\\)]+)\\\\),\\\\s*)';\n  }\n  cubemapSrcRegex += '(url\\\\((?:[^\\\\)]+)\\\\)\\\\s*)';\n  urls = src.match(new RegExp(cubemapSrcRegex));\n\n  // `src` is a comma-separated list of URLs.\n  // In this case, re-use validateSrc for each side of the cube.\n  function isImageCb (url) {\n    validatedUrls.push(url);\n    if (validatedUrls.length === 6) {\n      cb(validatedUrls);\n    }\n  }\n  if (urls) {\n    for (i = 1; i < 7; i++) {\n      validateSrc(parseUrl(urls[i]), isImageCb);\n    }\n    return;\n  }\n\n  // `src` is a query selector to <a-cubemap> containing six $([src])s.\n  aCubemap = validateAndGetQuerySelector(src);\n  if (!aCubemap) { return; }\n  if (aCubemap.tagName === 'A-CUBEMAP' && aCubemap.srcs) {\n    return cb(aCubemap.srcs);\n  }\n  // Else if aCubeMap is not a <a-cubemap>.\n  warn('Selector \"%s\" does not point to <a-cubemap>', src);\n}\n\n/**\n * Parses src from `url(src)`.\n * @param  {string} src - String to parse.\n * @return {string} The parsed src, if parseable.\n */\nfunction parseUrl (src) {\n  var parsedSrc = src.match(/\\url\\((.+)\\)/);\n  if (!parsedSrc) { return; }\n  return parsedSrc[1];\n}\n\n/**\n * Call back whether `src` is an image.\n *\n * @param {string|Element} src - URL or element that will be tested.\n * @param {function} onResult - Callback with whether `src` is an image.\n */\nfunction checkIsImage (src, onResult) {\n  var request;\n\n  if (src.tagName) {\n    onResult(src.tagName === 'IMG');\n    return;\n  }\n  request = new XMLHttpRequest();\n\n  // Try to send HEAD request to check if image first.\n  request.open('HEAD', src);\n  request.addEventListener('load', function (event) {\n    var contentType;\n    if (request.status >= 200 && request.status < 300) {\n      contentType = request.getResponseHeader('Content-Type');\n      if (contentType == null) {\n        checkIsImageFallback(src, onResult);\n      } else {\n        if (contentType.startsWith('image')) {\n          onResult(true);\n        } else {\n          onResult(false);\n        }\n      }\n    } else {\n      checkIsImageFallback(src, onResult);\n    }\n    request.abort();\n  });\n  request.send();\n}\n\nfunction checkIsImageFallback (src, onResult) {\n  var tester = new Image();\n  tester.addEventListener('load', onLoad);\n  function onLoad () { onResult(true); }\n  tester.addEventListener('error', onError);\n  function onError () { onResult(false); }\n  tester.src = src;\n}\n\n/**\n * Query and validate a query selector,\n *\n * @param  {string} selector - DOM selector.\n * @return {object|null|undefined} Selected DOM element if exists.\n           null if query yields no results.\n           undefined if `selector` is not a valid selector.\n */\nfunction validateAndGetQuerySelector (selector) {\n  try {\n    var el = document.querySelector(selector);\n    if (!el) {\n      warn('No element was found matching the selector: \"%s\"', selector);\n    }\n    return el;\n  } catch (e) {  // Capture exception if it's not a valid selector.\n    warn('\"%s\" is not a valid selector', selector);\n    return undefined;\n  }\n}\n\nmodule.exports = {\n  parseUrl: parseUrl,\n  validateSrc: validateSrc,\n  validateCubemapSrc: validateCubemapSrc\n};\n","/* Utils for parsing style-like strings (e.g., \"primitive: box; width: 5; height: 4.5\"). */\nvar styleParser = require('style-attr');\n\n/**\n * Deserializes style-like string into an object of properties.\n *\n * @param {string} value - HTML attribute value.\n * @returns {object} Property data.\n */\nmodule.exports.parse = function (value) {\n  var parsedData;\n  if (typeof value !== 'string') { return value; }\n  parsedData = styleParser.parse(value);\n  // The style parser returns an object { \"\" : \"test\"} when fed a string\n  if (parsedData['']) { return value; }\n  return transformKeysToCamelCase(parsedData);\n};\n\n/**\n * Serialize an object of properties into a style-like string.\n *\n * @param {object} data - Property data.\n * @returns {string}\n */\nmodule.exports.stringify = function (data) {\n  if (typeof data === 'string') { return data; }\n  return styleParser.stringify(data);\n};\n\n/**\n * Converts string from hyphen to camelCase.\n *\n * @param {string} str - String to camelCase.\n * @return {string} CamelCased string.\n */\nfunction toCamelCase (str) {\n  return str.replace(/-([a-z])/g, camelCase);\n  function camelCase (g) { return g[1].toUpperCase(); }\n}\nmodule.exports.toCamelCase = toCamelCase;\n\n/**\n * Converts object's keys from hyphens to camelCase (e.g., `max-value` to\n * `maxValue`).\n *\n * @param {object} obj - The object to camelCase keys.\n * @return {object} The object with keys camelCased.\n */\nfunction transformKeysToCamelCase (obj) {\n  var keys = Object.keys(obj);\n  var camelCaseObj = {};\n  keys.forEach(function (key) {\n    var camelCaseKey = toCamelCase(key);\n    camelCaseObj[camelCaseKey] = obj[key];\n  });\n  return camelCaseObj;\n}\nmodule.exports.transformKeysToCamelCase = transformKeysToCamelCase;\n","var DEFAULT_HANDEDNESS = require('../constants').DEFAULT_HANDEDNESS;\nvar AXIS_LABELS = ['x', 'y', 'z', 'w'];\nvar NUM_HANDS = 2; // Number of hands in a pair. Should always be 2.\n\n/**\n * Called on controller component `.play` handlers.\n * Check if controller matches parameters and inject tracked-controls component.\n * Handle event listeners.\n * Generate controllerconnected or controllerdisconnected events.\n *\n * @param {object} component - Tracked controls component.\n * @param {object} idPrefix - Prefix to match in gamepad id if any.\n * @param {object} queryObject - Map of values to match.\n */\nmodule.exports.checkControllerPresentAndSetup = function (component, idPrefix, queryObject) {\n  var el = component.el;\n  var isPresent = isControllerPresent(component, idPrefix, queryObject);\n\n  // If component was previously paused and now playing, re-add event listeners.\n  // Handle the event listeners here since this helper method is control of calling\n  // `.addEventListeners` and `.removeEventListeners`.\n  if (component.controllerPresent && !component.controllerEventsActive) {\n    component.addEventListeners();\n  }\n\n  // Nothing changed, no need to do anything.\n  if (isPresent === component.controllerPresent) { return isPresent; }\n\n  component.controllerPresent = isPresent;\n\n  // Update controller presence.\n  if (isPresent) {\n    component.injectTrackedControls();\n    component.addEventListeners();\n    el.emit('controllerconnected', {name: component.name, component: component});\n  } else {\n    component.removeEventListeners();\n    el.emit('controllerdisconnected', {name: component.name, component: component});\n  }\n};\n\n/**\n * Enumerate controller (that have pose) and check if they match parameters.\n *\n * @param {object} component - Tracked controls component.\n * @param {object} idPrefix - Prefix to match in gamepad id if any.\n * @param {object} queryObject - Map of values to match.\n */\nfunction isControllerPresent (component, idPrefix, queryObject) {\n  var gamepads;\n  var sceneEl = component.el.sceneEl;\n  var trackedControlsSystem;\n  var filterControllerIndex = queryObject.index || 0;\n\n  if (!idPrefix) { return false; }\n\n  trackedControlsSystem = sceneEl && sceneEl.systems['tracked-controls'];\n  if (!trackedControlsSystem) { return false; }\n\n  gamepads = trackedControlsSystem.controllers;\n  if (!gamepads.length) { return false; }\n\n  return !!findMatchingController(gamepads, null, idPrefix, queryObject.hand, filterControllerIndex);\n}\n\nmodule.exports.isControllerPresent = isControllerPresent;\n\n/**\n * Walk through the given controllers to find any where the device ID equals filterIdExact, or startWith filterIdPrefix.\n * A controller where this considered true is considered a 'match'.\n *\n * For each matching controller:\n *   If filterHand is set, and the controller:\n *     is handed, we further verify that controller.hand equals filterHand.\n *     is unhanded (controller.hand is ''), we skip until we have found a number of matching controllers that equals filterControllerIndex\n *   If filterHand is not set, we skip until we have found the nth matching controller, where n equals filterControllerIndex\n *\n * The method should be called with one of: [filterIdExact, filterIdPrefix] AND one or both of: [filterHand, filterControllerIndex]\n *\n * @param {object} controllers - Array of gamepads to search\n * @param {string} filterIdExact - If set, used to find controllers with id === this value\n * @param {string} filterIdPrefix - If set, used to find controllers with id startsWith this value\n * @param {object} filterHand - If set, further filters controllers with matching 'hand' property\n * @param {object} filterControllerIndex - Find the nth matching controller, where n equals filterControllerIndex. defaults to 0.\n */\nfunction findMatchingController (controllers, filterIdExact, filterIdPrefix, filterHand, filterControllerIndex) {\n  var controller;\n  var i;\n  var matchingControllerOccurence = 0;\n  var targetControllerMatch = filterControllerIndex || 0;\n\n  for (i = 0; i < controllers.length; i++) {\n    controller = controllers[i];\n    // Determine if the controller ID matches our criteria\n    if (filterIdPrefix && controller.id.indexOf(filterIdPrefix) === -1) { continue; }\n    if (!filterIdPrefix && controller.id !== filterIdExact) { continue; }\n\n    // If the hand filter and controller handedness are defined we compare them.\n    if (filterHand && controller.hand && filterHand !== controller.hand) { continue; }\n\n    // If we have detected an unhanded controller and the component was asking for a particular hand,\n    // we need to treat the controllers in the array as pairs of controllers. This effectively means that we\n    // need to skip NUM_HANDS matches for each controller number, instead of 1.\n    if (filterHand && !controller.hand) {\n      targetControllerMatch = NUM_HANDS * filterControllerIndex + ((filterHand === DEFAULT_HANDEDNESS) ? 0 : 1);\n    }\n\n    // We are looking for the nth occurence of a matching controller (n equals targetControllerMatch).\n    if (matchingControllerOccurence === targetControllerMatch) {\n      return controller;\n    }\n    ++matchingControllerOccurence;\n  }\n  return undefined;\n}\n\nmodule.exports.findMatchingController = findMatchingController;\n\n/**\n * Emit specific `moved` event(s) if axes changed based on original axismoved event.\n *\n * @param {object} component - Controller component in use.\n * @param {array} axesMapping - For example `{thumbstick: [0, 1]}`.\n * @param {object} evt - Event to process.\n */\nmodule.exports.emitIfAxesChanged = function (component, axesMapping, evt) {\n  var axes;\n  var buttonTypes;\n  var changed;\n  var detail;\n  var i;\n  var j;\n\n  buttonTypes = Object.keys(axesMapping);\n  for (i = 0; i < buttonTypes.length; i++) {\n    axes = axesMapping[buttonTypes[i]];\n\n    changed = false;\n    for (j = 0; j < axes.length; j++) {\n      if (evt.detail.changed[axes[j]]) { changed = true; }\n    }\n\n    if (!changed) { continue; }\n\n    // Axis has changed. Emit the specific moved event with axis values in detail.\n    detail = {};\n    for (j = 0; j < axes.length; j++) {\n      detail[AXIS_LABELS[j]] = evt.detail.axis[axes[j]];\n    }\n    component.el.emit(buttonTypes[i] + 'moved', detail);\n  }\n};\n\n/**\n * Handle a button event and reemits the events.\n *\n * @param {string} id - id of the button.\n * @param {string} evtName - name of the reemitted event\n * @param {object} component - reference to the component\n * @param {string} hand - handedness of the controller: left or right.\n */\nmodule.exports.onButtonEvent = function (id, evtName, component, hand) {\n  var mapping = hand ? component.mapping[hand] : component.mapping;\n  var buttonName = mapping.buttons[id];\n  component.el.emit(buttonName + evtName);\n  if (component.updateModel) {\n    component.updateModel(buttonName, evtName);\n  }\n};\n","/**\n * @author dmarcos / https://github.com/dmarcos\n * @author mrdoob / http://mrdoob.com\n */\n\nTHREE.VRControls = function ( object, onError ) {\n\n\tvar scope = this;\n\n\tvar vrDisplay, vrDisplays;\n\n\tvar standingMatrix = new THREE.Matrix4();\n\n\tvar frameData = null;\n\n\tif ( 'VRFrameData' in window ) {\n\n\t\tframeData = new window.VRFrameData();\n\n\t}\n\n\twindow.addEventListener('vrdisplayconnect', function (evt) { vrDisplay = evt.display; });\n\twindow.addEventListener('vrdisplaydisconnect', function () { vrDisplay = undefined });\n\n\tfunction gotVRDisplays( displays ) {\n\n\t\tvrDisplays = displays;\n\n\t\tif ( displays.length > 0 ) {\n\n\t\t\tvrDisplay = displays[ 0 ];\n\n\t\t} else {\n\n\t\t\tif ( onError ) onError( 'VR input not available.' );\n\n\t\t}\n\n\t}\n\n\tif ( navigator.getVRDisplays ) {\n\n\t\tnavigator.getVRDisplays().then( gotVRDisplays ).catch ( function () {\n\n\t\t\tconsole.warn( 'THREE.VRControls: Unable to get VR Displays' );\n\n\t\t} );\n\n\t}\n\n\t// the Rift SDK returns the position in meters\n\t// this scale factor allows the user to define how meters\n\t// are converted to scene units.\n\n\tthis.scale = 1;\n\n\t// If true will use \"standing space\" coordinate system where y=0 is the\n\t// floor and x=0, z=0 is the center of the room.\n\tthis.standing = false;\n\n\t// Distance from the users eyes to the floor in meters. Used when\n\t// standing=true but the VRDisplay doesn't provide stageParameters.\n\tthis.userHeight = 1.6;\n\n\tthis.getVRDisplay = function () {\n\n\t\treturn vrDisplay;\n\n\t};\n\n\tthis.setVRDisplay = function ( value ) {\n\n\t\tvrDisplay = value;\n\n\t};\n\n\tthis.getVRDisplays = function () {\n\n\t\tconsole.warn( 'THREE.VRControls: getVRDisplays() is being deprecated.' );\n\t\treturn vrDisplays;\n\n\t};\n\n\tthis.getStandingMatrix = function () {\n\n\t\treturn standingMatrix;\n\n\t};\n\n\tthis.update = function () {\n\n\t\tif ( vrDisplay ) {\n\n\t\t\tvar pose;\n\n\t\t\tif ( vrDisplay.getFrameData ) {\n\n\t\t\t\tvrDisplay.getFrameData( frameData );\n\t\t\t\tpose = frameData.pose;\n\n\t\t\t} else if ( vrDisplay.getPose ) {\n\n\t\t\t\tpose = vrDisplay.getPose();\n\n\t\t\t}\n\n\t\t\tif ( pose.orientation !== null ) {\n\n\t\t\t\tobject.quaternion.fromArray( pose.orientation );\n\n\t\t\t}\n\n\t\t\tif ( pose.position !== null ) {\n\n\t\t\t\tobject.position.fromArray( pose.position );\n\n\t\t\t} else {\n\n\t\t\t\tobject.position.set( 0, 0, 0 );\n\n\t\t\t}\n\n\t\t\tif ( this.standing ) {\n\n\t\t\t\tif ( vrDisplay.stageParameters ) {\n\n\t\t\t\t\tobject.updateMatrix();\n\n\t\t\t\t\tstandingMatrix.fromArray( vrDisplay.stageParameters.sittingToStandingTransform );\n\t\t\t\t\tobject.applyMatrix( standingMatrix );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tobject.position.setY( object.position.y + this.userHeight );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tobject.position.multiplyScalar( scope.scale );\n\n\t\t}\n\n\t};\n\n\tthis.resetPose = function () {\n\n\t\tif ( vrDisplay ) {\n\n\t\t\tvrDisplay.resetPose();\n\n\t\t}\n\n\t};\n\n\tthis.resetSensor = function () {\n\n\t\tconsole.warn( 'THREE.VRControls: .resetSensor() is now .resetPose().' );\n\t\tthis.resetPose();\n\n\t};\n\n\tthis.zeroSensor = function () {\n\n\t\tconsole.warn( 'THREE.VRControls: .zeroSensor() is now .resetPose().' );\n\t\tthis.resetPose();\n\n\t};\n\n\tthis.dispose = function () {\n\n\t\tvrDisplay = null;\n\n\t};\n\n};\n","/**\n * @author dmarcos / https://github.com/dmarcos\n * @author mrdoob / http://mrdoob.com\n *\n * WebVR Spec: http://mozvr.github.io/webvr-spec/webvr.html\n *\n * Firefox: http://mozvr.com/downloads/\n * Chromium: https://webvr.info/get-chrome\n *\n */\n\nTHREE.VREffect = function( renderer, onError ) {\n\n\tvar vrDisplay, vrDisplays;\n\tvar eyeTranslationL = new THREE.Vector3();\n\tvar eyeTranslationR = new THREE.Vector3();\n\tvar renderRectL, renderRectR;\n\n\tvar frameData = null;\n\n\tif ( 'VRFrameData' in window ) {\n\n\t\tframeData = new window.VRFrameData();\n\n\t}\n\n\twindow.addEventListener('vrdisplayconnect', function (evt) { vrDisplay = evt.display; });\n\twindow.addEventListener('vrdisplaydisconnect', function (evt) {\n\t\tvar f;\n\t\t\n\t\tscope.exitPresent();\n\t\t// Cancels current request animation frame.\n\t\tf = scope.cancelAnimationFrame();\n\t\tvrDisplay = undefined;\n\t\t// Resumes the request animation frame.\n\t\tscope.requestAnimationFrame(f);\n\t});\n\n\tfunction gotVRDisplays( displays ) {\n\n\t\tvrDisplays = displays;\n\n\t\tif ( displays.length > 0 ) {\n\n\t\t\tvrDisplay = displays[ 0 ];\n\n\t\t} else {\n\n\t\t\tif ( onError ) onError( 'HMD not available' );\n\n\t\t}\n\n\t}\n\n\tif ( navigator.getVRDisplays ) {\n\n\t\tnavigator.getVRDisplays().then( gotVRDisplays ).catch( function() {\n\n\t\t\tconsole.warn( 'THREE.VREffect: Unable to get VR Displays' );\n\n\t\t} );\n\n\t}\n\n\t//\n\n\tthis.isPresenting = false;\n\n\tvar scope = this;\n\n\tvar rendererSize = renderer.getSize();\n\tvar rendererUpdateStyle = false;\n\tvar rendererPixelRatio = renderer.getPixelRatio();\n\n\tthis.getVRDisplay = function() {\n\n\t\treturn vrDisplay;\n\n\t};\n\n\tthis.setVRDisplay = function( value ) {\n\n\t\tvrDisplay = value;\n\n\t};\n\n\tthis.getVRDisplays = function() {\n\n\t\tconsole.warn( 'THREE.VREffect: getVRDisplays() is being deprecated.' );\n\t\treturn vrDisplays;\n\n\t};\n\n\tthis.setSize = function( width, height, updateStyle ) {\n\n\t\trendererSize = { width: width, height: height };\n\t\trendererUpdateStyle = updateStyle;\n\n\t\tif ( scope.isPresenting ) {\n\n\t\t\tvar eyeParamsL = vrDisplay.getEyeParameters( 'left' );\n\t\t\trenderer.setPixelRatio( 1 );\n\t\t\trenderer.setSize( eyeParamsL.renderWidth * 2, eyeParamsL.renderHeight, false );\n\n\t\t} else {\n\n\t\t\trenderer.setPixelRatio( rendererPixelRatio );\n\t\t\trenderer.setSize( width, height, updateStyle );\n\n\t\t}\n\n\t};\n\n\t// VR presentation\n\n\tvar canvas = renderer.domElement;\n\tvar defaultLeftBounds = [ 0.0, 0.0, 0.5, 1.0 ];\n\tvar defaultRightBounds = [ 0.5, 0.0, 0.5, 1.0 ];\n\n\tfunction onVRDisplayPresentChange() {\n\n\t\tvar wasPresenting = scope.isPresenting;\n\t\tscope.isPresenting = vrDisplay !== undefined && vrDisplay.isPresenting;\n\n\t\tif ( scope.isPresenting ) {\n\n\t\t\tvar eyeParamsL = vrDisplay.getEyeParameters( 'left' );\n\t\t\tvar eyeWidth = eyeParamsL.renderWidth;\n\t\t\tvar eyeHeight = eyeParamsL.renderHeight;\n\n\t\t\tif ( ! wasPresenting ) {\n\n\t\t\t\trendererPixelRatio = renderer.getPixelRatio();\n\t\t\t\trendererSize = renderer.getSize();\n\n\t\t\t\trenderer.setPixelRatio( 1 );\n\t\t\t\trenderer.setSize( eyeWidth * 2, eyeHeight, false );\n\n\t\t\t}\n\n\t\t} else if ( wasPresenting ) {\n\n\t\t\trenderer.setPixelRatio( rendererPixelRatio );\n\t\t\trenderer.setSize( rendererSize.width, rendererSize.height, rendererUpdateStyle );\n\n\t\t}\n\n\t}\n\n\twindow.addEventListener( 'vrdisplaypresentchange', onVRDisplayPresentChange, false );\n\n\tthis.setFullScreen = function( boolean ) {\n\n\t\treturn new Promise( function( resolve, reject ) {\n\n\t\t\tif ( vrDisplay === undefined ) {\n\n\t\t\t\treject( new Error( 'No VR hardware found.' ) );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tif ( scope.isPresenting === boolean ) {\n\n\t\t\t\tresolve();\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tif ( boolean ) {\n\n\t\t\t\tresolve( vrDisplay.requestPresent( [ { source: canvas } ] ) );\n\n\t\t\t} else {\n\n\t\t\t\tresolve( vrDisplay.exitPresent() );\n\n\t\t\t}\n\n\t\t} );\n\n\t};\n\n\tthis.requestPresent = function() {\n\n\t\treturn this.setFullScreen( true );\n\n\t};\n\n\tthis.exitPresent = function() {\n\n\t\treturn this.setFullScreen( false );\n\n\t};\n\n\tthis.requestAnimationFrame = function( f ) {\n\n\t\tvar f = scope.f = f || scope.f;\n\n\t\tif (!f) { return; }\n\n\t\tif ( vrDisplay !== undefined ) {\n\t\t\treturn vrDisplay.requestAnimationFrame( f );\n\t\t} else {\n\n\t\t\treturn window.requestAnimationFrame( f );\n\n\t\t}\n\n\t};\n\n\tthis.cancelAnimationFrame = function( h ) {\n\n\t\tvar f = scope.f;\n\n\t\tscope.f = undefined;\n\n\t\tif ( vrDisplay !== undefined ) {\n\n\t\t\tvrDisplay.cancelAnimationFrame( h );\n\n\t\t} else {\n\n\t\t\twindow.cancelAnimationFrame( h );\n\n\t\t}\n\n\t\treturn f;\n\t};\n\n\tthis.submitFrame = function() {\n\n\t\tif ( vrDisplay !== undefined && scope.isPresenting ) {\n\n\t\t\tvrDisplay.submitFrame();\n\n\t\t}\n\n\t};\n\n\tthis.autoSubmitFrame = true;\n\n\t// render\n\n\tvar cameraL = new THREE.PerspectiveCamera();\n\tcameraL.layers.enable( 1 );\n\n\tvar cameraR = new THREE.PerspectiveCamera();\n\tcameraR.layers.enable( 2 );\n\n\tthis.render = function( scene, camera, renderTarget, forceClear ) {\n\n\t\tif ( vrDisplay && scope.isPresenting ) {\n\n\t\t\tvar autoUpdate = scene.autoUpdate;\n\n\t\t\tif ( autoUpdate ) {\n\n\t\t\t\tscene.updateMatrixWorld();\n\t\t\t\tscene.autoUpdate = false;\n\n\t\t\t}\n\n\t\t\tvar eyeParamsL = vrDisplay.getEyeParameters( 'left' );\n\t\t\tvar eyeParamsR = vrDisplay.getEyeParameters( 'right' );\n\n\t\t\teyeTranslationL.fromArray( eyeParamsL.offset );\n\t\t\teyeTranslationR.fromArray( eyeParamsR.offset );\n\n\t\t\tif ( Array.isArray( scene ) ) {\n\n\t\t\t\tconsole.warn( 'THREE.VREffect.render() no longer supports arrays. Use object.layers instead.' );\n\t\t\t\tscene = scene[ 0 ];\n\n\t\t\t}\n\n\t\t\t// When rendering we don't care what the recommended size is, only what the actual size\n\t\t\t// of the backbuffer is.\n\t\t\tvar size = renderer.getSize();\n\t\t\tvar layers = vrDisplay.getLayers();\n\t\t\tvar leftBounds;\n\t\t\tvar rightBounds;\n\n\t\t\tif ( layers.length ) {\n\n\t\t\t\tvar layer = layers[ 0 ];\n\n\t\t\t\tleftBounds = layer.leftBounds !== null && layer.leftBounds.length === 4 ? layer.leftBounds : defaultLeftBounds;\n\t\t\t\trightBounds = layer.rightBounds !== null && layer.rightBounds.length === 4 ? layer.rightBounds : defaultRightBounds;\n\n\t\t\t} else {\n\n\t\t\t\tleftBounds = defaultLeftBounds;\n\t\t\t\trightBounds = defaultRightBounds;\n\n\t\t\t}\n\n\t\t\trenderRectL = {\n\t\t\t\tx: Math.round( size.width * leftBounds[ 0 ] ),\n\t\t\t\ty: Math.round( size.height * leftBounds[ 1 ] ),\n\t\t\t\twidth: Math.round( size.width * leftBounds[ 2 ] ),\n\t\t\t\theight: Math.round( size.height * leftBounds[ 3 ] )\n\t\t\t};\n\t\t\trenderRectR = {\n\t\t\t\tx: Math.round( size.width * rightBounds[ 0 ] ),\n\t\t\t\ty: Math.round( size.height * rightBounds[ 1 ] ),\n\t\t\t\twidth: Math.round( size.width * rightBounds[ 2 ] ),\n\t\t\t\theight: Math.round( size.height * rightBounds[ 3 ] )\n\t\t\t};\n\n\t\t\tif ( renderTarget ) {\n\n\t\t\t\trenderer.setRenderTarget( renderTarget );\n\t\t\t\trenderTarget.scissorTest = true;\n\n\t\t\t} else {\n\n\t\t\t\trenderer.setRenderTarget( null );\n\t\t\t\trenderer.setScissorTest( true );\n\n\t\t\t}\n\n\t\t\tif ( renderer.autoClear || forceClear ) renderer.clear();\n\n\t\t\tif ( camera.parent === null ) camera.updateMatrixWorld();\n\n\t\t\tcamera.matrixWorld.decompose( cameraL.position, cameraL.quaternion, cameraL.scale );\n\n\t\t\tcameraR.position.copy(cameraL.position);\n\t\t\tcameraR.quaternion.copy(cameraL.quaternion);\n\t\t\tcameraR.scale.copy(cameraL.scale);\n\n\t\t\tcameraL.translateOnAxis( eyeTranslationL, cameraL.scale.x );\n\t\t\tcameraR.translateOnAxis( eyeTranslationR, cameraR.scale.x );\n\n\t\t\tif ( vrDisplay.getFrameData ) {\n\n\t\t\t\tvrDisplay.depthNear = camera.near;\n\t\t\t\tvrDisplay.depthFar = camera.far;\n\n\t\t\t\tvrDisplay.getFrameData( frameData );\n\n\t\t\t\tcameraL.projectionMatrix.elements = frameData.leftProjectionMatrix;\n\t\t\t\tcameraR.projectionMatrix.elements = frameData.rightProjectionMatrix;\n\n\t\t\t} else {\n\n\t\t\t\tcameraL.projectionMatrix = fovToProjection( eyeParamsL.fieldOfView, true, camera.near, camera.far );\n\t\t\t\tcameraR.projectionMatrix = fovToProjection( eyeParamsR.fieldOfView, true, camera.near, camera.far );\n\n\t\t\t}\n\n\t\t\t// render left eye\n\t\t\tif ( renderTarget ) {\n\n\t\t\t\trenderTarget.viewport.set( renderRectL.x, renderRectL.y, renderRectL.width, renderRectL.height );\n\t\t\t\trenderTarget.scissor.set( renderRectL.x, renderRectL.y, renderRectL.width, renderRectL.height );\n\n\t\t\t} else {\n\n\t\t\t\trenderer.setViewport( renderRectL.x, renderRectL.y, renderRectL.width, renderRectL.height );\n\t\t\t\trenderer.setScissor( renderRectL.x, renderRectL.y, renderRectL.width, renderRectL.height );\n\n\t\t\t}\n\t\t\trenderer.render( scene, cameraL, renderTarget, forceClear );\n\n\t\t\t// render right eye\n\t\t\tif ( renderTarget ) {\n\n\t\t\t\trenderTarget.viewport.set( renderRectR.x, renderRectR.y, renderRectR.width, renderRectR.height );\n\t\t\t\trenderTarget.scissor.set( renderRectR.x, renderRectR.y, renderRectR.width, renderRectR.height );\n\n\t\t\t} else {\n\n\t\t\t\trenderer.setViewport( renderRectR.x, renderRectR.y, renderRectR.width, renderRectR.height );\n\t\t\t\trenderer.setScissor( renderRectR.x, renderRectR.y, renderRectR.width, renderRectR.height );\n\n\t\t\t}\n\t\t\trenderer.render( scene, cameraR, renderTarget, forceClear );\n\n\t\t\tif ( renderTarget ) {\n\n\t\t\t\trenderTarget.viewport.set( 0, 0, size.width, size.height );\n\t\t\t\trenderTarget.scissor.set( 0, 0, size.width, size.height );\n\t\t\t\trenderTarget.scissorTest = false;\n\t\t\t\trenderer.setRenderTarget( null );\n\n\t\t\t} else {\n\n\t\t\t\trenderer.setViewport( 0, 0, size.width, size.height );\n\t\t\t\trenderer.setScissorTest( false );\n\n\t\t\t}\n\n\t\t\tif ( autoUpdate ) {\n\n\t\t\t\tscene.autoUpdate = true;\n\n\t\t\t}\n\n\t\t\tif ( scope.autoSubmitFrame ) {\n\n\t\t\t\tscope.submitFrame();\n\n\t\t\t}\n\n\t\t\treturn;\n\n\t\t}\n\n\t\t// Regular render mode if not HMD\n\n\t\trenderer.render( scene, camera, renderTarget, forceClear );\n\n\t};\n\n\tthis.dispose = function() {\n\n\t\twindow.removeEventListener( 'vrdisplaypresentchange', onVRDisplayPresentChange, false );\n\n\t};\n\n\t//\n\n\tfunction fovToNDCScaleOffset( fov ) {\n\n\t\tvar pxscale = 2.0 / ( fov.leftTan + fov.rightTan );\n\t\tvar pxoffset = ( fov.leftTan - fov.rightTan ) * pxscale * 0.5;\n\t\tvar pyscale = 2.0 / ( fov.upTan + fov.downTan );\n\t\tvar pyoffset = ( fov.upTan - fov.downTan ) * pyscale * 0.5;\n\t\treturn { scale: [ pxscale, pyscale ], offset: [ pxoffset, pyoffset ] };\n\n\t}\n\n\tfunction fovPortToProjection( fov, rightHanded, zNear, zFar ) {\n\n\t\trightHanded = rightHanded === undefined ? true : rightHanded;\n\t\tzNear = zNear === undefined ? 0.01 : zNear;\n\t\tzFar = zFar === undefined ? 10000.0 : zFar;\n\n\t\tvar handednessScale = rightHanded ? - 1.0 : 1.0;\n\n\t\t// start with an identity matrix\n\t\tvar mobj = new THREE.Matrix4();\n\t\tvar m = mobj.elements;\n\n\t\t// and with scale/offset info for normalized device coords\n\t\tvar scaleAndOffset = fovToNDCScaleOffset( fov );\n\n\t\t// X result, map clip edges to [-w,+w]\n\t\tm[ 0 * 4 + 0 ] = scaleAndOffset.scale[ 0 ];\n\t\tm[ 0 * 4 + 1 ] = 0.0;\n\t\tm[ 0 * 4 + 2 ] = scaleAndOffset.offset[ 0 ] * handednessScale;\n\t\tm[ 0 * 4 + 3 ] = 0.0;\n\n\t\t// Y result, map clip edges to [-w,+w]\n\t\t// Y offset is negated because this proj matrix transforms from world coords with Y=up,\n\t\t// but the NDC scaling has Y=down (thanks D3D?)\n\t\tm[ 1 * 4 + 0 ] = 0.0;\n\t\tm[ 1 * 4 + 1 ] = scaleAndOffset.scale[ 1 ];\n\t\tm[ 1 * 4 + 2 ] = - scaleAndOffset.offset[ 1 ] * handednessScale;\n\t\tm[ 1 * 4 + 3 ] = 0.0;\n\n\t\t// Z result (up to the app)\n\t\tm[ 2 * 4 + 0 ] = 0.0;\n\t\tm[ 2 * 4 + 1 ] = 0.0;\n\t\tm[ 2 * 4 + 2 ] = zFar / ( zNear - zFar ) * - handednessScale;\n\t\tm[ 2 * 4 + 3 ] = ( zFar * zNear ) / ( zNear - zFar );\n\n\t\t// W result (= Z in)\n\t\tm[ 3 * 4 + 0 ] = 0.0;\n\t\tm[ 3 * 4 + 1 ] = 0.0;\n\t\tm[ 3 * 4 + 2 ] = handednessScale;\n\t\tm[ 3 * 4 + 3 ] = 0.0;\n\n\t\tmobj.transpose();\n\t\treturn mobj;\n\n\t}\n\n\tfunction fovToProjection( fov, rightHanded, zNear, zFar ) {\n\n\t\tvar DEG2RAD = Math.PI / 180.0;\n\n\t\tvar fovPort = {\n\t\t\tupTan: Math.tan( fov.upDegrees * DEG2RAD ),\n\t\t\tdownTan: Math.tan( fov.downDegrees * DEG2RAD ),\n\t\t\tleftTan: Math.tan( fov.leftDegrees * DEG2RAD ),\n\t\t\trightTan: Math.tan( fov.rightDegrees * DEG2RAD )\n\t\t};\n\n\t\treturn fovPortToProjection( fovPort, rightHanded, zNear, zFar );\n\n\t}\n\n};\n","window.glStats = function () {\n\n    var _rS = null;\n\n    var _totalDrawArraysCalls = 0,\n        _totalDrawElementsCalls = 0,\n        _totalUseProgramCalls = 0,\n        _totalFaces = 0,\n        _totalVertices = 0,\n        _totalPoints = 0,\n        _totalBindTexures = 0;\n\n    function _h ( f, c ) {\n        return function () {\n            c.apply( this, arguments );\n            f.apply( this, arguments );\n        };\n    }\n\n    WebGLRenderingContext.prototype.drawArrays = _h( WebGLRenderingContext.prototype.drawArrays, function () {\n        _totalDrawArraysCalls++;\n        if ( arguments[ 0 ] == this.POINTS ) _totalPoints += arguments[ 2 ];\n        else _totalVertices += arguments[ 2 ];\n    } );\n\n    WebGLRenderingContext.prototype.drawElements = _h( WebGLRenderingContext.prototype.drawElements, function () {\n        _totalDrawElementsCalls++;\n        _totalFaces += arguments[ 1 ] / 3;\n        _totalVertices += arguments[ 1 ];\n    } );\n\n    WebGLRenderingContext.prototype.useProgram = _h( WebGLRenderingContext.prototype.useProgram, function () {\n        _totalUseProgramCalls++;\n    } );\n\n    WebGLRenderingContext.prototype.bindTexture = _h( WebGLRenderingContext.prototype.bindTexture, function () {\n        _totalBindTexures++;\n    } );\n\n    var _values = {\n        allcalls: {\n            over: 3000,\n            caption: 'Calls (hook)'\n        },\n        drawelements: {\n            caption: 'drawElements (hook)'\n        },\n        drawarrays: {\n            caption: 'drawArrays (hook)'\n        }\n    };\n\n    var _groups = [ {\n        caption: 'WebGL',\n        values: [ 'allcalls', 'drawelements', 'drawarrays', 'useprogram', 'bindtexture', 'glfaces', 'glvertices', 'glpoints' ]\n    } ];\n\n    var _fractions = [ {\n        base: 'allcalls',\n        steps: [ 'drawelements', 'drawarrays' ]\n    } ];\n\n    function _update () {\n        _rS( 'allcalls' ).set( _totalDrawArraysCalls + _totalDrawElementsCalls );\n        _rS( 'drawElements' ).set( _totalDrawElementsCalls );\n        _rS( 'drawArrays' ).set( _totalDrawArraysCalls );\n        _rS( 'bindTexture' ).set( _totalBindTexures );\n        _rS( 'useProgram' ).set( _totalUseProgramCalls );\n        _rS( 'glfaces' ).set( _totalFaces );\n        _rS( 'glvertices' ).set( _totalVertices );\n        _rS( 'glpoints' ).set( _totalPoints );\n    }\n\n    function _start () {\n        _totalDrawArraysCalls = 0;\n        _totalDrawElementsCalls = 0;\n        _totalUseProgramCalls = 0;\n        _totalFaces = 0;\n        _totalVertices = 0;\n        _totalPoints = 0;\n        _totalBindTexures = 0;\n    }\n\n    function _end () {}\n\n    function _attach ( r ) {\n        _rS = r;\n    }\n\n    return {\n        update: _update,\n        start: _start,\n        end: _end,\n        attach: _attach,\n        values: _values,\n        groups: _groups,\n        fractions: _fractions\n    };\n\n};\n\nwindow.threeStats = function ( renderer ) {\n\n    var _rS = null;\n\n    var _values = {\n        'renderer.info.memory.geometries': {\n            caption: 'Geometries'\n        },\n        'renderer.info.memory.textures': {\n            caption: 'Textures'\n        },\n        'renderer.info.programs': {\n            caption: 'Programs'\n        },\n        'renderer.info.render.calls': {\n            caption: 'Calls'\n        },\n        'renderer.info.render.faces': {\n            caption: 'Faces',\n            over: 1000\n        },\n        'renderer.info.render.points': {\n            caption: 'Points'\n        },\n        'renderer.info.render.vertices': {\n            caption: 'Vertices'\n        }\n    };\n\n    var _groups = [ {\n        caption: 'Three.js - Memory',\n        values: [ 'renderer.info.memory.geometries', 'renderer.info.programs', 'renderer.info.memory.textures' ]\n    }, {\n        caption: 'Three.js - Render',\n        values: [ 'renderer.info.render.calls', 'renderer.info.render.faces', 'renderer.info.render.points', 'renderer.info.render.vertices' ]\n    } ];\n\n    var _fractions = [];\n\n    function _update () {\n\n        _rS( 'renderer.info.memory.geometries' ).set( renderer.info.memory.geometries );\n        _rS( 'renderer.info.programs' ).set( renderer.info.programs.length );\n        _rS( 'renderer.info.memory.textures' ).set( renderer.info.memory.textures );\n        _rS( 'renderer.info.render.calls' ).set( renderer.info.render.calls );\n        _rS( 'renderer.info.render.faces' ).set( renderer.info.render.faces );\n        _rS( 'renderer.info.render.points' ).set( renderer.info.render.points );\n        _rS( 'renderer.info.render.vertices' ).set( renderer.info.render.vertices );\n\n    }\n\n    function _start () {}\n\n    function _end () {}\n\n    function _attach ( r ) {\n        _rS = r;\n    }\n\n    return {\n        update: _update,\n        start: _start,\n        end: _end,\n        attach: _attach,\n        values: _values,\n        groups: _groups,\n        fractions: _fractions\n    };\n\n};\n\n/*\n *   From https://github.com/paulirish/memory-stats.js\n */\n\nwindow.BrowserStats = function () {\n\n    var _rS = null;\n\n    var _usedJSHeapSize = 0,\n        _totalJSHeapSize = 0;\n\n    if ( window.performance && !performance.memory ) {\n        performance.memory = {\n            usedJSHeapSize: 0,\n            totalJSHeapSize: 0\n        };\n    }\n\n    if ( performance.memory.totalJSHeapSize === 0 ) {\n        console.warn( 'totalJSHeapSize === 0... performance.memory is only available in Chrome .' );\n    }\n\n    var _values = {\n        memory: {\n            caption: 'Used Memory',\n            average: true,\n            avgMs: 1000,\n            over: 22\n        },\n        total: {\n            caption: 'Total Memory'\n        }\n    };\n\n    var _groups = [ {\n        caption: 'Browser',\n        values: [ 'memory', 'total' ]\n    } ];\n\n    var _fractions = [ {\n        base: 'total',\n        steps: [ 'memory' ]\n    } ];\n\n    var log1024 = Math.log( 1024 );\n\n    function _size ( v ) {\n\n        var precision = 100; //Math.pow(10, 2);\n        var i = Math.floor( Math.log( v ) / log1024 );\n        return Math.round( v * precision / Math.pow( 1024, i ) ) / precision; // + ' ' + sizes[i];\n\n    }\n\n    function _update () {\n        _usedJSHeapSize = _size( performance.memory.usedJSHeapSize );\n        _totalJSHeapSize = _size( performance.memory.totalJSHeapSize );\n\n        _rS( 'memory' ).set( _usedJSHeapSize );\n        _rS( 'total' ).set( _totalJSHeapSize );\n    }\n\n    function _start () {\n        _usedJSHeapSize = 0;\n    }\n\n    function _end () {}\n\n    function _attach ( r ) {\n        _rS = r;\n    }\n\n    return {\n        update: _update,\n        start: _start,\n        end: _end,\n        attach: _attach,\n        values: _values,\n        groups: _groups,\n        fractions: _fractions\n    };\n\n};\n\nif (typeof module === 'object') {\n  module.exports = {\n    glStats: window.glStats,\n    threeStats: window.threeStats,\n    BrowserStats: window.BrowserStats\n  };\n}\n","// performance.now() polyfill from https://gist.github.com/paulirish/5438650\n'use strict';\n\n( function () {\n\n    if ( 'performance' in window == false ) {\n        window.performance = {};\n    }\n\n    var performance = window.performance;\n\n    if ( 'now' in performance == false ) {\n\n        var nowOffset = Date.now();\n\n        if ( performance.timing && performance.timing.navigationStart ) {\n            nowOffset = performance.timing.navigationStart;\n        }\n\n        performance.now = function now () {\n            return Date.now() - nowOffset;\n        };\n\n    }\n\n    if( !performance.mark ) {\n        performance.mark = function(){}\n    }\n\n    if( !performance.measure ) {\n        performance.measure = function(){}\n    }\n\n} )();\n\nwindow.rStats = function rStats ( settings ) {\n\n    function iterateKeys ( array, callback ) {\n        var keys = Object.keys( array );\n        for ( var j = 0, l = keys.length; j < l; j++ ) {\n            callback( keys[ j ] );\n        }\n    }\n\n    function importCSS ( url ) {\n\n        var element = document.createElement( 'link' );\n        element.href = url;\n        element.rel = 'stylesheet';\n        element.type = 'text/css';\n        document.getElementsByTagName( 'head' )[ 0 ].appendChild( element );\n\n    }\n\n    var _settings = settings || {};\n    var _colours = _settings.colours || [ '#850700', '#c74900', '#fcb300', '#284280', '#4c7c0c' ];\n\n    var _cssFont = 'https://fonts.googleapis.com/css?family=Roboto+Condensed:400,700,300';\n    var _cssRStats = ( _settings.CSSPath ? _settings.CSSPath : '' ) + 'rStats.css';\n\n    var _css = _settings.css || [ _cssFont, _cssRStats ];\n    _css.forEach(function (uri) {\n        importCSS( uri );\n    });\n\n    if ( !_settings.values ) _settings.values = {};\n\n    var _base, _div, _elHeight = 10, _elWidth = 200;\n    var _perfCounters = {};\n\n\n    function Graph ( _dom, _id, _defArg ) {\n\n        var _def = _defArg || {};\n        var _canvas = document.createElement( 'canvas' ),\n            _ctx = _canvas.getContext( '2d' ),\n            _max = 0,\n            _current = 0;\n\n        var c = _def.color ? _def.color : '#666666';\n\n        var _dotCanvas = document.createElement( 'canvas' ),\n            _dotCtx = _dotCanvas.getContext( '2d' );\n        _dotCanvas.width = 1;\n        _dotCanvas.height = 2 * _elHeight;\n        _dotCtx.fillStyle = '#444444';\n        _dotCtx.fillRect( 0, 0, 1, 2 * _elHeight );\n        _dotCtx.fillStyle = c;\n        _dotCtx.fillRect( 0, _elHeight, 1, _elHeight );\n        _dotCtx.fillStyle = '#ffffff';\n        _dotCtx.globalAlpha = 0.5;\n        _dotCtx.fillRect( 0, _elHeight, 1, 1 );\n        _dotCtx.globalAlpha = 1;\n\n        var _alarmCanvas = document.createElement( 'canvas' ),\n            _alarmCtx = _alarmCanvas.getContext( '2d' );\n        _alarmCanvas.width = 1;\n        _alarmCanvas.height = 2 * _elHeight;\n        _alarmCtx.fillStyle = '#444444';\n        _alarmCtx.fillRect( 0, 0, 1, 2 * _elHeight );\n        _alarmCtx.fillStyle = '#b70000';\n        _alarmCtx.fillRect( 0, _elHeight, 1, _elHeight );\n        _alarmCtx.globalAlpha = 0.5;\n        _alarmCtx.fillStyle = '#ffffff';\n        _alarmCtx.fillRect( 0, _elHeight, 1, 1 );\n        _alarmCtx.globalAlpha = 1;\n\n        function _init () {\n\n            _canvas.width = _elWidth;\n            _canvas.height = _elHeight;\n            _canvas.style.width = _canvas.width + 'px';\n            _canvas.style.height = _canvas.height + 'px';\n            _canvas.className = 'rs-canvas';\n            _dom.appendChild( _canvas );\n\n            _ctx.fillStyle = '#444444';\n            _ctx.fillRect( 0, 0, _canvas.width, _canvas.height );\n\n        }\n\n        function _draw ( v, alarm ) {\n            _current += ( v - _current ) * 0.1;\n            _max *= 0.99;\n            if ( _current > _max ) _max = _current;\n            _ctx.drawImage( _canvas, 1, 0, _canvas.width - 1, _canvas.height, 0, 0, _canvas.width - 1, _canvas.height );\n            if ( alarm ) {\n                _ctx.drawImage( _alarmCanvas, _canvas.width - 1, _canvas.height - _current * _canvas.height / _max - _elHeight );\n            } else {\n                _ctx.drawImage( _dotCanvas, _canvas.width - 1, _canvas.height - _current * _canvas.height / _max - _elHeight );\n            }\n        }\n\n        _init();\n\n        return {\n            draw: _draw\n        };\n\n    }\n\n    function StackGraph ( _dom, _num ) {\n\n        var _canvas = document.createElement( 'canvas' ),\n            _ctx = _canvas.getContext( '2d' );\n\n        function _init () {\n\n            _canvas.width = _elWidth;\n            _canvas.height = _elHeight * _num;\n            _canvas.style.width = _canvas.width + 'px';\n            _canvas.style.height = _canvas.height + 'px';\n            _canvas.className = 'rs-canvas';\n            _dom.appendChild( _canvas );\n\n            _ctx.fillStyle = '#444444';\n            _ctx.fillRect( 0, 0, _canvas.width, _canvas.height );\n\n        }\n\n        function _draw ( v ) {\n            _ctx.drawImage( _canvas, 1, 0, _canvas.width - 1, _canvas.height, 0, 0, _canvas.width - 1, _canvas.height );\n            var th = 0;\n            iterateKeys( v, function ( j ) {\n                var h = v[ j ] * _canvas.height;\n                _ctx.fillStyle = _colours[ j ];\n                _ctx.fillRect( _canvas.width - 1, th, 1, h );\n                th += h;\n            } );\n        }\n\n        _init();\n\n        return {\n            draw: _draw\n        };\n\n    }\n\n    function PerfCounter ( id, group ) {\n\n        var _id = id,\n            _time,\n            _value = 0,\n            _total = 0,\n            _averageValue = 0,\n            _accumValue = 0,\n            _accumStart = performance.now(),\n            _accumSamples = 0,\n            _dom = document.createElement( 'div' ),\n            _spanId = document.createElement( 'span' ),\n            _spanValue = document.createElement( 'div' ),\n            _spanValueText = document.createTextNode( '' ),\n            _def = _settings ? _settings.values[ _id.toLowerCase() ] : null,\n            _graph = new Graph( _dom, _id, _def ),\n            _started = false;\n\n        _spanId.className = 'rs-counter-id';\n        _spanId.textContent = ( _def && _def.caption ) ? _def.caption : _id;\n\n        _spanValue.className = 'rs-counter-value';\n        _spanValue.appendChild( _spanValueText );\n\n        _dom.appendChild( _spanId );\n        _dom.appendChild( _spanValue );\n        if ( group ) group.div.appendChild( _dom );\n        else _div.appendChild( _dom );\n\n        _time = performance.now();\n\n        function _average ( v ) {\n            if ( _def && _def.average ) {\n                _accumValue += v;\n                _accumSamples++;\n                var t = performance.now();\n                if ( t - _accumStart >= ( _def.avgMs || 1000 ) ) {\n                    _averageValue = _accumValue / _accumSamples;\n                    _accumValue = 0;\n                    _accumStart = t;\n                    _accumSamples = 0;\n                }\n            }\n        }\n\n        function _start () {\n            _time = performance.now();\n            if( _settings.userTimingAPI ) performance.mark( _id + '-start' );\n            _started = true;\n        }\n\n        function _end () {\n            _value = performance.now() - _time;\n            if( _settings.userTimingAPI ) {\n                performance.mark( _id + '-end' );\n                if( _started ) {\n                    performance.measure( _id, _id + '-start', _id + '-end' );\n                }\n            }\n            _average( _value );\n        }\n\n        function _tick () {\n            _end();\n            _start();\n        }\n\n        function _draw () {\n            var v = ( _def && _def.average ) ? _averageValue : _value;\n            _spanValueText.nodeValue = Math.round( v * 100 ) / 100;\n            var a = ( _def && ( ( _def.below && _value < _def.below ) || ( _def.over && _value > _def.over ) ) );\n            _graph.draw( _value, a );\n            _dom.className = a ? 'rs-counter-base alarm' : 'rs-counter-base';\n\n        }\n\n        function _frame () {\n            var t = performance.now();\n            var e = t - _time;\n            _total++;\n            if ( e > 1000 ) {\n                if ( _def && _def.interpolate === false ) {\n                    _value = _total;\n                } else {\n                    _value = _total * 1000 / e;\n                }\n                _total = 0;\n                _time = t;\n                _average( _value );\n            }\n        }\n\n        function _set ( v ) {\n            _value = v;\n            _average( _value );\n        }\n\n        return {\n            set: _set,\n            start: _start,\n            tick: _tick,\n            end: _end,\n            frame: _frame,\n            value: function () {\n                return _value;\n            },\n            draw: _draw\n        };\n\n    }\n\n    function sample () {\n\n        var _value = 0;\n\n        function _set ( v ) {\n            _value = v;\n        }\n\n        return {\n            set: _set,\n            value: function () {\n                return _value;\n            }\n        };\n\n    }\n\n    function _perf ( idArg ) {\n\n        var id = idArg.toLowerCase();\n        if ( id === undefined ) id = 'default';\n        if ( _perfCounters[ id ] ) return _perfCounters[ id ];\n\n        var group = null;\n        if ( _settings && _settings.groups ) {\n            iterateKeys( _settings.groups, function ( j ) {\n                var g = _settings.groups[ parseInt( j, 10 ) ];\n                if ( !group && g.values.indexOf( id.toLowerCase() ) !== -1 ) {\n                    group = g;\n                }\n            } );\n        }\n\n        var p = new PerfCounter( id, group );\n        _perfCounters[ id ] = p;\n        return p;\n\n    }\n\n    function _init () {\n\n        if ( _settings.plugins ) {\n            if ( !_settings.values ) _settings.values = {};\n            if ( !_settings.groups ) _settings.groups = [];\n            if ( !_settings.fractions ) _settings.fractions = [];\n            for ( var j = 0; j < _settings.plugins.length; j++ ) {\n                _settings.plugins[ j ].attach( _perf );\n                iterateKeys( _settings.plugins[ j ].values, function ( k ) {\n                    _settings.values[ k ] = _settings.plugins[ j ].values[ k ];\n                } );\n                _settings.groups = _settings.groups.concat( _settings.plugins[ j ].groups );\n                _settings.fractions = _settings.fractions.concat( _settings.plugins[ j ].fractions );\n            }\n        } else {\n            _settings.plugins = {};\n        }\n\n        _base = document.createElement( 'div' );\n        _base.className = 'rs-base';\n        _div = document.createElement( 'div' );\n        _div.className = 'rs-container';\n        _div.style.height = 'auto';\n        _base.appendChild( _div );\n        document.body.appendChild( _base );\n\n        if ( !_settings ) return;\n\n        if ( _settings.groups ) {\n            iterateKeys( _settings.groups, function ( j ) {\n                var g = _settings.groups[ parseInt( j, 10 ) ];\n                var div = document.createElement( 'div' );\n                div.className = 'rs-group';\n                g.div = div;\n                var h1 = document.createElement( 'h1' );\n                h1.textContent = g.caption;\n                h1.addEventListener( 'click', function ( e ) {\n                    this.classList.toggle( 'hidden' );\n                    e.preventDefault();\n                }.bind( div ) );\n                _div.appendChild( h1 );\n                _div.appendChild( div );\n            } );\n        }\n\n        if ( _settings.fractions ) {\n            iterateKeys( _settings.fractions, function ( j ) {\n                var f = _settings.fractions[ parseInt( j, 10 ) ];\n                var div = document.createElement( 'div' );\n                div.className = 'rs-fraction';\n                var legend = document.createElement( 'div' );\n                legend.className = 'rs-legend';\n\n                var h = 0;\n                iterateKeys( _settings.fractions[ j ].steps, function ( k ) {\n                    var p = document.createElement( 'p' );\n                    p.textContent = _settings.fractions[ j ].steps[ k ];\n                    p.style.color = _colours[ h ];\n                    legend.appendChild( p );\n                    h++;\n                } );\n                div.appendChild( legend );\n                div.style.height = h * _elHeight + 'px';\n                f.div = div;\n                var graph = new StackGraph( div, h );\n                f.graph = graph;\n                _div.appendChild( div );\n            } );\n        }\n\n    }\n\n    function _update () {\n\n        iterateKeys( _settings.plugins, function ( j ) {\n            _settings.plugins[ j ].update();\n        } );\n\n        iterateKeys( _perfCounters, function ( j ) {\n            _perfCounters[ j ].draw();\n        } );\n\n        if ( _settings && _settings.fractions ) {\n            iterateKeys( _settings.fractions, function ( j ) {\n                var f = _settings.fractions[ parseInt( j, 10 ) ];\n                var v = [];\n                var base = _perfCounters[ f.base.toLowerCase() ];\n                if ( base ) {\n                    base = base.value();\n                    iterateKeys( _settings.fractions[ j ].steps, function ( k ) {\n                        var s = _settings.fractions[ j ].steps[ parseInt( k, 10 ) ].toLowerCase();\n                        var val = _perfCounters[ s ];\n                        if ( val ) {\n                            v.push( val.value() / base );\n                        }\n                    } );\n                }\n                f.graph.draw( v );\n            } );\n        }\n\n        /*if( _height != _div.clientHeight ) {\n            _height = _div.clientHeight;\n            _base.style.height = _height + 2 * _elHeight + 'px';\n        console.log( _base.clientHeight );\n        }*/\n\n    }\n\n    _init();\n\n    return function ( id ) {\n        if ( id ) return _perf( id );\n        return {\n            element: _base,\n            update: _update\n        };\n    };\n\n}\n\nif (typeof module === 'object') {\n  module.exports = window.rStats;\n}\n","/*\n * Copyright 2015 Google Inc. All Rights Reserved.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nvar Util = {};\n\nUtil.base64 = function(mimeType, base64) {\n  return 'data:' + mimeType + ';base64,' + base64;\n};\n\nUtil.isMobile = function() {\n  var check = false;\n  (function(a){if(/(android|bb\\d+|meego).+mobile|avantgo|bada\\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\\-(n|u)|c55\\/|capi|ccwa|cdm\\-|cell|chtm|cldc|cmd\\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\\-s|devi|dica|dmob|do(c|p)o|ds(12|\\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\\-|_)|g1 u|g560|gene|gf\\-5|g\\-mo|go(\\.w|od)|gr(ad|un)|haie|hcit|hd\\-(m|p|t)|hei\\-|hi(pt|ta)|hp( i|ip)|hs\\-c|ht(c(\\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\\-(20|go|ma)|i230|iac( |\\-|\\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\\/)|klon|kpt |kwc\\-|kyo(c|k)|le(no|xi)|lg( g|\\/(k|l|u)|50|54|\\-[a-w])|libw|lynx|m1\\-w|m3ga|m50\\/|ma(te|ui|xo)|mc(01|21|ca)|m\\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\\-2|po(ck|rt|se)|prox|psio|pt\\-g|qa\\-a|qc(07|12|21|32|60|\\-[2-7]|i\\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\\-|oo|p\\-)|sdk\\/|se(c(\\-|0|1)|47|mc|nd|ri)|sgh\\-|shar|sie(\\-|m)|sk\\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\\-|v\\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\\-|tdg\\-|tel(i|m)|tim\\-|t\\-mo|to(pl|sh)|ts(70|m\\-|m3|m5)|tx\\-9|up(\\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\\-|your|zeto|zte\\-/i.test(a.substr(0,4)))check = true})(navigator.userAgent||navigator.vendor||window.opera);\n  return check;\n};\n\nUtil.isIOS = function() {\n  return /(iPad|iPhone|iPod)/g.test(navigator.userAgent);\n};\n\nUtil.isIFrame = function() {\n  try {\n    return window.self !== window.top;\n  } catch (e) {\n    return true;\n  }\n};\n\nUtil.appendQueryParameter = function(url, key, value) {\n  // Determine delimiter based on if the URL already GET parameters in it.\n  var delimiter = (url.indexOf('?') < 0 ? '?' : '&');\n  url += delimiter + key + '=' + value;\n  return url;\n};\n\n// From http://goo.gl/4WX3tg\nUtil.getQueryParameter = function(name) {\n  name = name.replace(/[\\[]/, \"\\\\[\").replace(/[\\]]/, \"\\\\]\");\n  var regex = new RegExp(\"[\\\\?&]\" + name + \"=([^&#]*)\"),\n      results = regex.exec(location.search);\n  return results === null ? \"\" : decodeURIComponent(results[1].replace(/\\+/g, \" \"));\n};\n\nUtil.isLandscapeMode = function() {\n  return (window.orientation == 90 || window.orientation == -90);\n};\n\n\nmodule.exports = Util;\n","/*\n * Copyright 2015 Google Inc. All Rights Reserved.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nvar Util = require('./util.js');\n\n/**\n * Android and iOS compatible wakelock implementation.\n *\n * Refactored thanks to dkovalev@.\n */\nfunction AndroidWakeLock() {\n  var video = document.createElement('video');\n\n  video.addEventListener('ended', function() {\n    video.play();\n  });\n\n  this.request = function() {\n    if (video.paused) {\n      // Base64 version of videos_src/no-sleep-60s.webm.\n      video.src = Util.base64('video/webm', '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');\n      video.play();\n    }\n  };\n\n  this.release = function() {\n    video.pause();\n    video.src = '';\n  };\n}\n\nfunction iOSWakeLock() {\n  var timer = null;\n\n  this.request = function() {\n    if (!timer) {\n      timer = setInterval(function() {\n        window.location.href = '/';\n        setTimeout(window.stop, 0);\n      }, 15000);\n    }\n  }\n\n  this.release = function() {\n    if (timer) {\n      clearInterval(timer);\n      timer = null;\n    }\n  }\n}\n\n\nfunction getWakeLock() {\n  var userAgent = navigator.userAgent || navigator.vendor || window.opera;\n  if (userAgent.match(/iPhone/i) || userAgent.match(/iPod/i)) {\n    return iOSWakeLock;\n  } else {\n    return AndroidWakeLock;\n  }\n}\n\nmodule.exports = getWakeLock();\n"]}