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Photon Maps
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Bidirectional Tracing
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Missing Effects
Distribution Ray Tracing
Ray trace, but at each reflection cast a lot of rays
Cast with distribution function to represent reflection properties
Will model caustics, etc, but need
lots
of rays
(10+ rays per reflection)
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CS488/688: Introduction to Interactive Computer Graphics
University of Waterloo
Computer Graphics Lab
cs488@cgl.uwaterloo.ca