State of the Art in Photon Density Estimation
Toshiya Hachisuka, Wojciech Jarosz, Guillaume Bouchard, Per Christensen, Jeppe Revall Frisvad, Wenzel Jakob, Henrik Wann Jensen, Michael Kaschalk, Matthias Zwicker, Andrew Selle, Ben Spencer.
ACM SIGGRAPH 2012 Courses, July 2012.