Face rig:
Controls influence the others around them for easier animating.
Otto Rig:
Built for game compatibility. Has been imported into UE3 and Unity.
UE3 Shaders
SSS skin shader:
Contains Sub Surface Scattering, Back-scattering, Tiled diffuse/specular/normal maps, Diffusely convolved ambient cube map, Lightmasking AO Bake.
