A Multi-Faceted Exploration (Part 4) - Self Shadow


Last time around, I showed that we could improve upon Imageworks’ multiple-scattering approximation by precalculating a new term, $\Ems$, from the Heitz model itself. This is, of course, a well-trodden path in rendering: if you can’t use something directly then try to tabulate or fit it instead!

This is a companion discussion topic for the original entry at https://blog.selfshadow.com/2019/03/30/multi-faceted-part-4/