Abstract
Ray tracing algorithms often approximate indirect diffuse 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 effectiveness in practice.
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© 1995 EUROGRAPHICS The European Association for Computer Graphics
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Lafortune, E.P., Willems, Y.D. (1995). The Ambient Term as a Variance Reducing Technique for Monte Carlo Ray Tracing. In: Sakas, G., Müller, S., Shirley, P. (eds) Photorealistic Rendering Techniques. Focus on Computer Graphics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-87825-1_12
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DOI: https://doi.org/10.1007/978-3-642-87825-1_12
Publisher Name: Springer, Berlin, Heidelberg
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