VisibilityChunk: average directional visibility for importance sampling.

Yu-Ting Wu 0001 Yung-Yu Chuang VisibilityChunk: average directional visibility for importance sampling. 44 2012 SIGGRAPH ASIA Posters https://doi.org/10.1145/2407156.2407205 conf/siggraph/2012asiaposters db/conf/siggraph/siggraph2012asiaposters.html#WuC12