ylfink@water.waterloo.edu (ylfink) (03/18/88)
DEPARTMENT OF COMPUTER SCIENCE UNIVERSITY OF WATERLOO SEMINAR ACTIVITIES COMPUTER GRAPHICS SEMINAR - Monday, March 21, 1988 Dr. Ken Musgrave, of Yale University, will speak on ``Ray Tracing Fractal Mountains, with Rainbows''. TIME: 3:30 PM ROOM: MC 6091A ABSTRACT A model of dispersive refraction for computer graphics will be presented. This model is an extension of the distributed ray tracing technique of Rob Cook. An application of the dispersion model is the simulation of atmospheric rainbows, which are probably most useful for placement over simulated landscapes. To that end, a new and very fast algorithm for ray tracing fractal mountains created by the triangle subdivision technique will be discussed. Best of all, some pretty pictures created for B.B. Mandelbrot at Yale University will be shown. These images include some novel textures and atmospheric effects that create convincing representations of water, clouds and haze.