interface version 1
Creates a surface by sweeping cross-sections along a backbone curve with ramp parameters controling scale and twist.
This node is a replacement of the original Sweep SOP, providing additional features,
such as reversing input curve directions, refining of the path curve, scale/twist/roll driven by per-point
attributes and/or ramp controls, and basic UV coordinate generation.
Parameters
Sweep
| See the Sweep documentation for parameters.
Additional parameters are described below.
Default Tube Radius
| Radius of the default circular profile (available only if no profile curve connected).
| Backbone Refine
| The number of divisions to create along the path spline (if enabled).
This can be useful if the resulting surface doesn’t follow the path curve
accurately enough (might happen with path curves with points placed
too un-evenly along the curve).
| Reverse Cross Section(s), Reverse Backbone
| Reverse the direction of the profile and/or path curve(s).
(e.g.: if the surface normals of the resulting geometry point inwards, reverse cross-section curve direction.)
| Scale
| Scale Multiplier
| Global scale multiplier for profile scale.
| Profile Scale
| Modulates the profile along the backbone, default is 1.
| | Twist
| Twist Multiplier
| Multiplyer of the Profile Twist parameter in degrees.
| Profile Twist
| Modulates the twist parameter along the backbone, default is 0 (no twist).
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Output
| Add Texture UVs
| A quick convenience switch to generate basic UV coordinates for the resulting surface.
Note
It is geared towards working with parametric-type geometry, so make sure all inputs
are of that type (NURBS curves, etc.)
Also, make sure the Cycle Type parameter is set to a mode that supports UV generation
(marked with * in the UI).
| Cross Section(s), Backbone
| Parametrization setting for UV coordinates generation for the cross section and backbone curves.
(See the UV Texture SOP for description.)
Note
The Arc Length Spline mode can cause some “swimming” of the texture for animated path geometry.
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Tip
To have proper UV texturing coordinates, do the following:
Assign UVs to the backbone spline using an UV Texture, SOP (using one of its Spline modes)
Assign UVs to the cross section curve(s) the same way, but rotate the UVs by -90
degrees.
Set Cycle Type to “One Primitive at a Time” (or “Cycle Primitives”).
Release Notes
interface version 1 —
2014-02-20
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2013-05-07
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2012-08-12
| Sweep Plus qL is retired, the name is Sweep qL now;
Completely removed the coincident path points' merging option (the user can fall back to using a Fuse SOP if this is needed)
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2012-08-12
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2012-08-11
| Options for reversing direction of profile and path curves
Option for refining backbone (path) resolution
Options for generating basic UV coordinates for the resulting surface
Minor UI fixes/changes.
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Version 0.1.3
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Version 0.1.2
| Turns parameter deleted.
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Version 0.1.1
| Added Profile Scale Multiplier/Turns.
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Version 0.1.0
| Initial release. |