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Image from "Coco"

 

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

 

Procedural Texture

Procedurally create noise and patterns.

 

Manifolds

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

 

Bump

Create low amplitude embossing effects.

 

Geometry Nodes

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

 

Baking

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