Value Channels

The second group of channels, the Value group, controls how much light affects an object. The channels in the Value group are Diffusion, Ambience, Specularity, Metallicity, and Bump Height.

Diffusion, Ambience, and Specularity define how the surface interacts with direct light. They let you control how much direct light affects the surface of an object. In a physical environment, these channels control how shiny, dark, or bright the object appears. Refer to "Diffusion," "Ambience," and "Specularity" for more information.

Metallicity is related to Reflection. It determines how much reflected light is filtered through the Diffuse Color. Refer to "Metallicity" for more information.

Bump Height controls the height of any bumps or dents on the object's surface. Refer to "Bump Height" for more information.

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