The Ambient Term as a Variance Reducing Technique for Monte Carlo Ray Tracing

Abstract

Ray tracing algorithms often approximate indirect diiuse lighting by means of an ambient lighting term. In this paper we show how a similar term can be used as a variance reducing technique for stochastic ray tracing. In a theoretical derivation we prove that the technique is mathematically correct. Test results demonstrate its usefulness and eeectiveness… (More)

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Cite this paper

@inproceedings{Lafortune1994TheAT, title={The Ambient Term as a Variance Reducing Technique for Monte Carlo Ray Tracing}, author={Eric P. Lafortune and Yves D. Willems}, year={1994} }