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Color is typically where diffuse or / albedo textures or patterns are connected to create color for opaque objects.Accordion Image Slider sliderHeight 400 labelsFilter diff containerWidth 100%
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Diffuse roughness is how you would simulate a powdery surface like dried clay or dust.
When roughness is 0.0, LamaDiffuse uses the Lambertian model to calculate the diffuse response.
When roughness is > 0.0, the Oren Nayar model is used instead.Accordion Image Slider sliderHeight 400 labelsFilter diffrough containerWidth 100%
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Here is where you supply a signal, either a texture or procedural pattern, to create a bump to the surface to "fake" surface details like small bumps or scratches. This means an artist doesn't have to model these tedious and often repetitious parts of a model.
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RenderMan Fundamentals
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