Ray Differentials and Multiresolution Geometry Caching for Distribution Ray
Tracing in Complex Scenes|
Per H. Christensen, David M. Laur, Julian Fong, Wayne L. Wooten, Dana Batali
When rendering only directly visible objects, ray tracing a few levels of specular reflection from large, low curvatures surfaces, and ray tracing shadows from point-like light sources, the accessed geometry is coherent and a geometry cache performs well. But in many other cases, ... more
Published as pp. pp. 543-552 in Computer Graphics Forum (Eurographics 2003 Conference Proceedings), Blackwell Publishers, September 2003.