Editing Phong shading (section)

== History ==
Phong shading and the [[Phong reflection model]] were developed at the [[University of Utah]] by [[Bui Tuong Phong]], who published them in his 1973 Ph.D. dissertation<ref>Bui Tuong Phong, ''Illumination of Computer-Generated Images'', Department of Computer Science, University of Utah, UTEC-CSc-73-129, July 1973.</ref><ref>University of Utah School of Computing, [http://www.cs.utah.edu/school/history/#phong-ref History]</ref> and a 1975 paper.<ref>Bui Tuong Phong, "Illumination for Computer Generated Pictures," [[Comm. ACM]], Vol 18(6):311-317, June 1975.</ref> Phong's methods were considered radical at the time of their introduction, but have since become the ''de facto'' baseline shading method for many rendering applications.{{fact|date=December 2019}} Phong's methods have proven popular due to their generally efficient use of computation time per rendered pixel.{{fact|date=December 2019}}