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Accurate Computation of Single Scattering in Participating Media with Refractive Boundaries

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N. HolzschuchAuthors Info & Claims

Computer Graphics Forum, Volume 34, Issue 6

Pages 48 - 59

https://doi.org/10.1111/cgf.12517

Published: 01 September 2015 Publication History

Abstract

Volume caustics are high-frequency effects appearing in participating media with low opacity, when refractive interfaces are focusing the light rays. Refractions make them hard to compute, since screen locality does not correlate with spatial locality in the medium. In this paper, we give a new method for accurate computation of single scattering effects in a participating media enclosed by refractive interfaces. Our algorithm is based on the observation that although radiance along each camera ray is irregular, contributions from individual triangles are smooth. Our method gives more accurate results than existing methods, faster. It uses minimal information and requires no pre-computation or additional data structures.

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Cited By

Wang BHašan MYan L(2020)Path cutsACM Transactions on Graphics10.1145/3414685.341779239:6(1-12)Online publication date: 27-Nov-2020
https://dl.acm.org/doi/10.1145/3414685.3417792
Velinov ZPapas MBradley DGotardo PMirdehghan PMarschner SNovák JBeeler T(2018)Appearance capture and modeling of human teethACM Transactions on Graphics10.1145/3272127.327509837:6(1-13)Online publication date: 4-Dec-2018
https://dl.acm.org/doi/10.1145/3272127.3275098
Wang BHolzschuch N(2018)Point-Based Rendering for Homogeneous Participating Media with Refractive BoundariesIEEE Transactions on Visualization and Computer Graphics10.1109/TVCG.2017.276852524:10(2743-2757)Online publication date: 1-Oct-2018
https://dl.acm.org/doi/10.1109/TVCG.2017.2768525
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cover image Computer Graphics Forum

Computer Graphics Forum Volume 34, Issue 6

September 2015

314 pages

ISSN:0167-7055

EISSN:1467-8659

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The Eurographs Association & John Wiley & Sons, Ltd.

Chichester, United Kingdom

Publication History

Published: 01 September 2015

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Cited By

Wang BHašan MYan L(2020)Path cutsACM Transactions on Graphics10.1145/3414685.341779239:6(1-12)Online publication date: 27-Nov-2020
https://dl.acm.org/doi/10.1145/3414685.3417792
Velinov ZPapas MBradley DGotardo PMirdehghan PMarschner SNovák JBeeler T(2018)Appearance capture and modeling of human teethACM Transactions on Graphics10.1145/3272127.327509837:6(1-13)Online publication date: 4-Dec-2018
https://dl.acm.org/doi/10.1145/3272127.3275098
Wang BHolzschuch N(2018)Point-Based Rendering for Homogeneous Participating Media with Refractive BoundariesIEEE Transactions on Visualization and Computer Graphics10.1109/TVCG.2017.276852524:10(2743-2757)Online publication date: 1-Oct-2018
https://dl.acm.org/doi/10.1109/TVCG.2017.2768525
Beddiaf ABabahenini M(2018)Physically-Based Rendering of Particle-Based Fluids with Light Transport Effects3D Research10.1007/s13319-018-0156-09:1(1-15)Online publication date: 1-Mar-2018
https://dl.acm.org/doi/10.1007/s13319-018-0156-0
Meng JHanika JDachsbacher C(2016)Improving the Dwivedi Sampling SchemeComputer Graphics Forum10.5555/3071773.307177835:4(37-44)Online publication date: 1-Jul-2016
https://dl.acm.org/doi/10.5555/3071773.3071778
Wang BGascuel JNolzschuch NManzke MEisemann EFiume E(2016)Point-based light transport for participating media with refractive boundariesProceedings of the Eurographics Symposium on Rendering: Experimental Ideas & Implementations10.5555/3056507.3056527(109-119)Online publication date: 22-Jun-2016
https://dl.acm.org/doi/10.5555/3056507.3056527
Koerner DNovák JKutz PHabel RJarosz WManzke MEisemann EFiume E(2016)Subdivision next-event estimation for path-traced subsurface scatteringProceedings of the Eurographics Symposium on Rendering: Experimental Ideas & Implementations10.5555/3056507.3056525(91-96)Online publication date: 22-Jun-2016
https://dl.acm.org/doi/10.5555/3056507.3056525

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