Oren Nayar

• Where to find it:

• Shader Palette / Add New Shader / Choose Diffuse And Specular /

• Node Ports
• Node Properties
• Main

Orren Nayar is a diffuse BRDF shading model with a roughness component.

High values give he surface a powdery,velvety look.

This shader adds the following options to the default Lambert Shading Options:

• Diffuse Roughness

Maps the Oren-Nayar "rougness".

• Diffuse Roughness

The diffuse component uses the Oren-Nayar shading model.

When Diffuse Roughness is 0.0 this is identical to classical Lambertian shading, but with higher values the surface gets a a more "powdery" look.

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