Houdini 13.0 Nodes

interface version 1

Desaturates over-bright color values.

This operator behaves as a very simple tone-mapping utility, by reducing/removing saturation from color values with a brightness larger than 1.0.

Inputs

Color

Input color.

HSV Value Min/Max

These values specify the brightness range where de-saturation is gradually applied. Colors less bright than Min will not be changed; brighter than Max will have their saturation component decreased to the value set at Saturation at Max (below).

Value Exponent

An additional exponent applied to the min/max range, allowing for non-linear desaturation mapping.

Saturation at Max

Colors equally or brighter than Max will have their saturation reduced to this value. (This value acts as a multiplier, e.g. 0.1 means 10% of original saturation).

Gamma

An additional gamma-correction, applied to the output color. (Provided as a convenience, if the node is used as a final color-correction before output.)

Outputs

Out Color

The resulting output color.

Out Saturation

The computed saturation multiplier.

Release Notes

interface version 1

2013-07-23

First version.

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