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BSSRDF importance sampling

Published: 21 July 2013 Publication History

Abstract

Light propagation within translucent materials can be described by a BSSRDF [Jensen et al. 2001]. The main difficulty in integrating this effect lies in the generation of well-distributed samples on the surface within the support of the rapidly decaying BSSRDF profile. Jensen suggested that these points could be importance sampled but did not provide implementation details. More recently, Walter et al. [2012] and Christensen et al. [2012] proposed other sampling methods which can still suffer from excessive variance.

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References

[1]
Christensen, P. H., Harker, G., Shade, J., Schubert, B., and Batali, D. 2012. Multiresolution radiosity caching for global illumination in movies. SIGGRAPH 2012 Talks.
[2]
D'Eon, E., and Irving, G. 2011. A quantized-diffusion model for rendering translucent materials. SIGGRAPH 2011.
[3]
Jensen, H. W., Marschner, S. R., Levoy, M., and Hanrahan, P. 2001. A practical model for subsurface light transport. SIGGRAPH 2001.
[4]
Walter, B., Khungurn, P., and Bala, K. 2012. Bidirectional lightcuts. SIGGRAPH 2012.

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cover image ACM Conferences
SIGGRAPH '13: ACM SIGGRAPH 2013 Talks
July 2013
25 pages
ISBN:9781450323444
DOI:10.1145/2504459
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Published: 21 July 2013

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  • (2024)Handheld structured light system for panoramic 3D measurement in mesoscaleMeasurement Science and Technology10.1088/1361-6501/ad5de235:10(105015)Online publication date: 12-Jul-2024
  • (2023)State of the Art in Efficient Translucent Material Rendering with BSSRDFComputer Graphics Forum10.1111/cgf.1499843:1Online publication date: 22-Dec-2023
  • (2022)Adaptive Irradiance Sampling for Many-Light Rendering of Subsurface ScatteringIEEE Transactions on Visualization and Computer Graphics10.1109/TVCG.2021.306664028:10(3324-3335)Online publication date: 1-Oct-2022
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