Face Material shade mask:
- R: Always Occluded. Always applies the shade color. Used under the hair, under the face, inside of the mouth and the secondary tongue, under the knees, etc
- G: Shading gradient. Serves as a gradient for the lighting, the darker the tone, the less light it needs to be shaded. Used on the face, marking the sides of the nose to be almost allways shaded and the cheeks to be almost allways without shade.
- B: Eye mask(?. Black mask on the eye area. Unknown, most likely a mask for something like ambient occlusion or the outline.
Body material shade mask:
- R: Shading gradient. Shading gradient like the G channel on the face.
- G: Specular gradient. Tells where to add specularity. Used on the nails and reflective parts.
