Coating Parameters Rollout (Physical Material)

The Coating Parameters rollout allows you to add a clear-coat layer to your material, on top of all other shading effects.

Interface

Clearcoat group

Weight
The degree of thickness of coating layer.
Color
The coating's color.
Roughness
The number of inequalities, ridges, or projections on the surface.
Inv
Inverts the Roughness level to behave like glossiness.
Coating IOR
The coating's Index of Refraction level. Affects the angular dependency of the refractions only, the coating does not actually refract light.

Affect Underlying

Color
The level of effect the coating has on the underlying materials, by making the color darker and more saturated.
Roughness
The level of effect the coating has on the roughness of the underlying materials. The rougher the coating, the more effect on the roughness of the underlying materials.