Light transport in general layered materials.
Wenzel Jakob (CS, Cornell); joint work with Steve Marschner.

Most nonmetallic materials in our world reflect light by means of subsurface transport, whereby light enters an object and undergoes a scattering process that is governed by its internal structure. To reproduce the appearance of such an object in the context of computer graphics, these processes are must be captured and simulated faithfully.

In many cases, the computational expenditures of such a simulation are still unacceptably high so that faster approximations are sought. In this talk, I will discuss our recent work on one such approximation that uses a discrete matrix representation to provide a computationally efficient framework for representing general layered materials composed of conductors, dielectrics, and random aggregations of particles.