Cornell University Program of Computer Graphics
Fitting virtual lights for non-diffuse walkthroughs.Bruce Walter, Gün Alppay, Eric Lafortune, Sebastian Fernandez, and Donald P. Greenberg.
In Turner Whitted, editor, SIGGRAPH 97 Conference Proceedings, Annual Conference Series, pages 45--48. ACM SIGGRAPH, Addison Wesley, August 1997.
This paper describes a technique for using a simple shading method, such as the Phong lighting model, to approximate the appearance calculated by a more accurate method. The results are then suitable for rapid display using existing graphics hardware and portable via standard graphics API's. Interactive walkthroughs of view-independent nondiffuse global illumination solutions are explored as the motivating application.
This paper is available as a PDF file WAL+97.pdf (665K).