Diffusion is a very versatile and reasonably fast sub surface scattering shader for Mental Ray 3.2+.
A female torso rendered with one light and a HDRI environment map.
The package consists of the Diffusion.xsiaddon and all the files contained within it, a short documentation and the source code, so you can modify it to your heart's content.
For a more detailed description, help files and credits please take a look at
the files enclosed.
