[ont.events] Ray Tracing Fractal Mountains, with Rainbows.

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.