Under following URL you can visit a live demo:
website online (takes a while to load textures)We present an implementation on subsurfacescattering using an approximation of texture space diffusion and 3D model courtesy of head scan by Lee Perry-Smith (http://www.ir-ltd.net/
Controls:
Use the left mouse button to rotate camera, right mouse button move the camera, hold down mouse wheel to zoom. Move point light with arrow keys along x- and y-axis, shift and ctrl along z axis.
Press T key to display unwrapped texture, R to resume. It is the unwrapped irradiance texture, mainly to verify that everything works correctly.
On the right hand side, you can change the gaussian weights, variance and blur factors and experiment with various values