Subsurface scattering
Encyclopedia : S : SU : SUB : Subsurface scattering
Subsurface scattering (or SSS) is a mechanism of light transport in which light penetrates the surface of a translucent object, is scattered by interacting with the material, and exits the surface at a different point. The light will generally penetrate the surface and be reflected a number of times at irregular angles inside the material, before passing back out of the material at an angle other than the angle it would reflect at had it reflected directly off the surface. Subsurface scattering is important in 3D computer graphics, being necessary for the realistic rendering of materials such as marble, skin, and milk.
External links
- [Henrik Wann Jensen's subsurface scattering website]
- [An academic paper by Jensen on modelling subsurface scattering]
- [Simple superficial surface scattering for Blender]
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