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An analytical approach to single scattering for anisotropic media and light distributions

Authors:

Vincent Pegoraro,

Mathias Schott,

Steven G. ParkerAuthors Info & Claims

GI '09: Proceedings of Graphics Interface 2009

Pages 71 - 77

Published: 25 May 2009 Publication History

Abstract

Despite their numerous applications, efficiently rendering participating media remains a challenging task due to the intricacy of the radiative transport equation. While numerical techniques remain the method of choice for addressing complex problems, a closed-form solution to the air-light integral in optically thin isotropic media was recently derived. In this paper, we extend this work and present a novel analytical approach to single scattering from point light sources in homogeneous media. We propose a combined formulation of the air-light integral which allows both anisotropic phase functions and light distributions to be adequately handled. The technique relies neither on precomputation nor on storage, and we provide a robust and efficient implementation allowing for an explicit control on the accuracy of the results. Finally, the performance characteristics of the method on graphics hardware are evaluated and demonstrate its suitability to real-time applications.

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Cited By

Belcour LXie GHery CMeyer MJarosz WNowrouzezahrai D(2018)Integrating Clipped Spherical Harmonics ExpansionsACM Transactions on Graphics10.1145/301545937:2(1-12)Online publication date: 23-Mar-2018
https://dl.acm.org/doi/10.1145/3015459
Georgiev IKřivánek JHachisuka TNowrouzezahrai DJarosz W(2013)Joint importance sampling of low-order volumetric scatteringACM Transactions on Graphics10.1145/2508363.250841132:6(1-14)Online publication date: 1-Nov-2013
https://dl.acm.org/doi/10.1145/2508363.2508411
Eisemann EAssarsson USchwarz MValient MWimmer M(2013)Efficient real-time shadowsACM SIGGRAPH 2013 Courses10.1145/2504435.2504453(1-54)Online publication date: 21-Jul-2013
https://dl.acm.org/doi/10.1145/2504435.2504453
Show More Cited By

Index Terms

An analytical approach to single scattering for anisotropic media and light distributions
1. Computing methodologies
  1. Computer graphics
    1. Image manipulation
      1. Texturing

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Information & Contributors

Information

Published In

cover image Guide Proceedings

GI '09: Proceedings of Graphics Interface 2009

May 2009

257 pages

ISBN:9781568814704

Program Chairs:
Amy Gooch
University of Victoria, Canada
,
Melanie Tory
University of Victoria, Canada

Sponsors

The Canadian Human-Computer Communications Society / Société Canadienne du Dialogue Humaine Machine (CHCCS/SCDHM)

Publisher

Canadian Information Processing Society

Canada

Publication History

Published: 25 May 2009

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GI '09 Paper Acceptance Rate 28 of 77 submissions, 36%;

Overall Acceptance Rate 206 of 508 submissions, 41%

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Cited By

Belcour LXie GHery CMeyer MJarosz WNowrouzezahrai D(2018)Integrating Clipped Spherical Harmonics ExpansionsACM Transactions on Graphics10.1145/301545937:2(1-12)Online publication date: 23-Mar-2018
https://dl.acm.org/doi/10.1145/3015459
Georgiev IKřivánek JHachisuka TNowrouzezahrai DJarosz W(2013)Joint importance sampling of low-order volumetric scatteringACM Transactions on Graphics10.1145/2508363.250841132:6(1-14)Online publication date: 1-Nov-2013
https://dl.acm.org/doi/10.1145/2508363.2508411
Eisemann EAssarsson USchwarz MValient MWimmer M(2013)Efficient real-time shadowsACM SIGGRAPH 2013 Courses10.1145/2504435.2504453(1-54)Online publication date: 21-Jul-2013
https://dl.acm.org/doi/10.1145/2504435.2504453
Wyman CDai ZMolnar SKrüger JPurcell THunt W(2013)Imperfect voxelized shadow volumesProceedings of the 5th High-Performance Graphics Conference10.1145/2492045.2492050(45-52)Online publication date: 19-Jul-2013
https://dl.acm.org/doi/10.1145/2492045.2492050
Eisemann EAssarsson USchwarz MValient MWimmer M(2012)Efficient real-time shadowsACM SIGGRAPH 2012 Courses10.1145/2343483.2343500(1-53)Online publication date: 5-Aug-2012
https://dl.acm.org/doi/10.1145/2343483.2343500
Novák JNowrouzezahrai DDachsbacher CJarosz W(2012)Virtual ray lights for rendering scenes with participating mediaACM Transactions on Graphics10.1145/2185520.218555631:4(1-11)Online publication date: 1-Jul-2012
https://dl.acm.org/doi/10.1145/2185520.2185556
Engelhardt TNovák JSchmidt TDachsbacher C(2012)Approximate Bias Compensation for Rendering Scenes with Heterogeneous Participating MediaComputer Graphics Forum10.1111/j.1467-8659.2012.03207.x31:7pt2(2145-2154)Online publication date: 1-Sep-2012
https://dl.acm.org/doi/10.1111/j.1467-8659.2012.03207.x
Ritschel TDachsbacher CGrosch TKautz J(2012)The State of the Art in Interactive Global IlluminationComputer Graphics Forum10.1111/j.1467-8659.2012.02093.x31:1(160-188)Online publication date: 1-Feb-2012
https://dl.acm.org/doi/10.1111/j.1467-8659.2012.02093.x
Pegoraro VSchott MSlusallek PBrooks SIrani P(2011)A mathematical framework for efficient closed-form single scatteringProceedings of Graphics Interface 201110.5555/1992917.1992942(151-158)Online publication date: 25-May-2011
https://dl.acm.org/doi/10.5555/1992917.1992942
Wyman COwens JPharr MDachsbacher CMark WPantaleoni J(2011)Voxelized shadow volumesProceedings of the ACM SIGGRAPH Symposium on High Performance Graphics10.1145/2018323.2018329(33-40)Online publication date: 5-Aug-2011
https://dl.acm.org/doi/10.1145/2018323.2018329
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