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Non-diffuse, random-walk radiosity algorithm with linear basis functions

Szirmay-Kalos L., Foris T., Purgathofer W.

Machine Graphics and Vision

1998

Vol. 7, No. 1/2

475-484

This paper presents an efficient method to solve the general rendering equation, using a combined finite element and quasi-random walk approach. Applying point collocation method, the surfaces are decomosed into planar patches where the directional distribution of the radiance is assumed to be a linear combination of the disrtibutions at the vertices. The direction dependet radiance function of the vertces is then computed by random of quasi-random walk.