Global Illumination as a Combination of Continuous Random Walk and Finite-Element Based Iteration

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Date
2001
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Blackwell Publishers Ltd and the Eurographics Association
Abstract
The paper introduces a global illumination method that combines continuous and finite-element approaches, pre-serving the speed of finite-element based iteration and the accuracy of continuous random walks. The basic idea is to decompose the radiance function to a finite-element component that is only a rough estimate and to a difference component that is obtained by Monte-Carlo techniques. Iteration and random walk are handled uniformly in the framework of stochastic iteration. This uniform treatment allows the finite-element component to be built up adap-tively aiming at minimizing the Monte-Carlo component. The method is also suited for interactive walkthrough animation in glossy scenes since when the viewpoint changes, only the small Monte-Carlo component needs to be recomputed.
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@article{
10.1111:1467-8659.00521
, journal = {Computer Graphics Forum}, title = {{
Global Illumination as a Combination of Continuous Random Walk and Finite-Element Based Iteration
}}, author = {
Szirmay-Kalos, Laszlo
and
Csonka, Ferenc
and
Antal, Gyorgy
}, year = {
2001
}, publisher = {
Blackwell Publishers Ltd and the Eurographics Association
}, ISSN = {
1467-8659
}, DOI = {
10.1111/1467-8659.00521
} }
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