Terrain layers enable you to work with multiple layers of materials. This feature enhances the level of detail and complexity you can achieve in your outdoor scenes.
The layer properties’ materials are referred to from the materials used in the Paint tool within the Terrain tools. Each of the 4 materials can be tampered with using the below properties.
Normal
Controls the detail of the normal map.
Roughness
Control the Roughness of the material.
Brightness
Controls the overall brightness of the material.
Contrast
Controls the overall contrast of the material.
Desaturation
Desaturate the material.