Path: utzoo!utgpu!jarvis.csri.toronto.edu!neat.cs.toronto.edu!marina Newsgroups: ont.events From: marina@ai.toronto.edu (Marina Haloulos) Subject: Mr. Francois Sillion, Tuesday 21 November 1989: GRAPHIC & INTERACTION Message-ID: <89Nov13.143613est.2901@neat.cs.toronto.edu> Date: 13 Nov 89 19:37:13 GMT Department of Computer Science, University of Toronto (GB = Gailbraith Building, 35 St. George Street) ------------------------------------------------------------- GRAPHIC & INTERACTION SEMINAR GB221, at 3:00 p.m., Tuesday 21 November 1989 Mr. Francois Sillion Cornell University "Allowing Interaction with Realistic Synthetic" This talk will concentrate on some advanced features for lighting simulation programs, and the competition between realism and interactivity. A general two-pass method for the calculation of realistic synthetic pictures is presented, that combines the respective strengths of ray tracing and radiosity, and allows the simulation of both diffuse and specular interreflection of light. Yet improving the realism of computer-generated pictures is not enough, since most serious applications of computer graphics also require some level of interaction with the user. Some techniques allowing a short ``response time'' from a lighting simulation software are presented, and a discussion of the respective application areas of the different lighting calculation models is proposed.