Toshiya Hachisuka1,2 Anton S. Kaplanyan3 Carsten Dachsbacher3 1Aarhus University

65 Pages·2014·11.62 MB·English

Multiplexed Metropolis Light Transport
Toshiya Hachisuka1,2 Anton S. Kaplanyan3 Carsten Dachsbacher3
1Aarhus University 2University of Tokyo 3Karlsruhe Institute of Technology
SIGGRAPH 2014
2
Two classes of MC methods
• •
Ordinary Monte Carlo Markov chain Monte Carlo
3
Two classes of MC methods
• •
Ordinary Monte Carlo Markov chain Monte Carlo
4
Ordinary Monte Carlo
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Generate independent samples from a known PDF
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We know how to integrate and invert this PDF
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Multiple importance sampling [Veach and Guibas 95]
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Utilizes multiple known PDFs
5
Multiple sampling methods
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Multiple sampling methods
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Multiple sampling methods
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Multiple sampling methods
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Multiple sampling methods
p (x) p (x)
0 3
p (x) p (x)
1 2
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Bidirectional path tracing
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Uses MIS to combine multiple sampling techniques