This article is by Paul Heckbert, who is also known for writing a raytracer that fit on the back of his business card. http://fabiensanglard.net/rayTracing_back

This article is by Paul Heckbert, who is also known for writing a raytracer that fit on the back of his business card. http://fabiensanglard.net/rayTracing_back_of_business_card/ http://fabiensanglard.net/rayTracing_back_of_business_card/ Since there seems to be some confusion in the comments, I'll point out that the Jell-O paper is 100% not serious. It's a satire of excessively-mathematical computer graphics papers. (Source: I shared an office with Paul.)