RENDERMAN 22 DOCUMENTATION

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Controls the direction in which the ramp colors change.

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Tile

Determines whether the ramp texture is repeated.

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Controls the way the intermediate colors between the colors listed in the colors list are calculated. Or you may choose "none" for no blending between the selected colors.

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Spline Map

If connected to a pattern, this is the 1D manifold that controls the map of the ramp. For example, if you connect this to a noise pattern, then the direction of the changing colors in the ramp will follow the noise pattern. This map takes precedence over the manifold value if both are connected.

The following image shows a PxrVoronoise pattern (with frequency set to 10) connected to a ramp through the splineMap parameter. The black values from the noise pattern are mapped to red from the ramp, and the white values from the noise are mapped to blue from the ramp, and the values between that are mapped to the green color from the middle of the ramp.

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Random Source

When Ramp Type is set to "Random Object Color", PxrRamp will use either the object's ID (Attribute "identifier:id") or the object's name (Attribute "identifier:name") to compute a random seed. This seed will be used to pick a color in the ramp.

This example uses the "None" Spline Type, but other spline types are supported.

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Random Seed

Change this value to get a different set of random variations.
Manifold

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