How it works: For example, you need to cover the car with snow. Select the car body material, apply CoronaLayeredMtl to it. In the Base Mtl slot - put your material, and in Layer 01 put the snow material with a procedural mask for blending. Ready! Easy to use UVW Mapped and Unwrapped are not needed, just apply to the model. Textures - Procedural Materials - PBR UV Mapped - Corona Triplanar Unwrapped UVs - Corona Triplanar