Tal Lancaster, Brent Burley. Computing dP/ds accurately in PRMan: Disney bonus section. In John Finnegan, Dave Shreiner, editors, 33. International Conference on Computer Graphics and Interactive Techniques, SIGGRAPH 2006, Boston, Massachusetts, USA, July 30 - August 3, 2006, Courses. pages 7, ACM, 2006. [doi]
Abstract is missing.