Subsurface Scattering Related Textures

Transmission Map

The grayscale transmission map defines the head areas for the light to pass through (mostly the ears).

Default Transmission Map	Transmission Map in pure black

SSS Map

The SSS Map determines where to apply the SSS effect.. This map provides the moisture and the tissues under the skin.

Default SSS Map moisturizes and brightens the face with a subsurface scattering effect	SSS Map in pure black; the skin looks dry.