Clearcoat Roughness defines the microsurface irregularity of the clearcoat layer, controlling how blurry or sharp reflections appear. Higher roughness values produce softer, more diffuse reflections, while lower values create sharper, more focused highlights.
A Roughness Map (Grayscale) texture input can be assigned to vary this effect across the surface, which can be baked in Toolbag, sourced from the Toolbag Library, painted using a Texture Project, or created in third-party applications.
| Setting | Description |
|---|---|
| Roughness Map Texture Slot | Add a roughness texture by clicking on the slot or dragging and dropping one from the Library. |
| Channel Selection | Determines which channel of the texture map will be used. It’s useful when, instead of using multiple single textures, you use one texture with different grayscale maps in the different texture channels: Red, Green, Blue, and Alpha. |
| Roughness Value | Specifies the maximum roughness value. |
| Invert | Inverts the output of the roughness shader. Useful for loading gloss maps in place of roughness maps. |
