Once-more scattered next event estimation | |
Johannes Hanika, Andrea Weidlich, Marc Droske |
[GKH*13] Georgiev et al., “Joint importance sampling of low-order volumetric scattering”, SIGGRAPH Asia 2013.
[PSP10] Pegoraro et al., “A closed-form solution to single scattering for general phase functions and light distributions”, EGSR 2010.