Patterns

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While Materials control the appearance of an object, patterns control the detail by varying the parameters of the material's Bxdf across a surface. This is similar to the way texture artists use textures to control the look of a material. RenderMan ships with a set of patterns that allow texturing, color correction, bumping, and various utility shading systems.

The patterns can be divided into the following categories:

Image Texture

Drive patterns with texture images.

• PxrMultiTexture

• PxrProjectionLayer

• PxrPtexture

• PxrTexture

Procedural Texture

Procedurally create noise and patterns.

• PxrChecker

• PxrCurvature

• PxrFractal

• PxrVoronoise

• PxrWorley

Manifolds

Manifolds tell the renderer how to apply patterns on a surface. This controls features like repetition, placement, and size.

• PxrManifold2D

• PxrBumpManifold2D

• PxrManifold3D

• PxrProjector

• PxrRandomTextureManifold

• PxrRoundCube

• PxrTileManifold

Color

Create or modify colors in the shading network.

• PxrBlackBody

• PxrBlend

• PxrClamp

• PxrColorCorrect

• PxrExposure

• PxrGamma

• PxrHairColor

• PxrHSL

• PxrInvert

• PxrLayeredBlend

• PxrMix

• PxrProjectionStack

• PxrRamp

• PxrRemap

• PxrThinFilm

• PxrThreshold

• PxrVary

Bump

Create low amplitude embossing effects.

• PxrBump

• PxrNormalMap

• PxrFlakes

• aaOceanPrmanShader

Geometry Nodes

You can use these nodes to calculate geometric properties and vectors.

• PxrDirt

• PxrDispScalarLayer

• PxrDispTransform

• PxrDispVectorLayer

• PxrDot

• PxrCross

• PxrFacingRatio

• PxrTangentField

Script

• OSL Patterns

• PxrSeExpr

Utility

• PxrAttribute

• PxrMatteID

• PxrPrimvar

• PxrVariable

• PxrToFloat

• PxrToFloat3

• PxrTee

• PxrShadedSide

Baking

These passthrough patterns are designed to allows users to bake arbitrary pattern networks.

• PxrBakeTexture

• PxrBakePointCloud