Fast, realistic lighting and material design using nonlinear cut approximation.

Ewen Cheslack-Postava Rui Wang Oskar Åkerlund Fabio Pellacini Fast, realistic lighting and material design using nonlinear cut approximation. 128 2008 27 ACM Trans. Graph. 5 http://doi.acm.org/10.1145/1457515.1409081 db/journals/tog/tog27.html#Cheslack-PostavaWAP08