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Interactive rendering of globally illuminated scenes including anisotropic and inhomogeneous participating media

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Abstract

Although new graphics hardware has accelerated the rendering process, the realistic simulation of scenes including participating media remains a difficult problem. Interactive results have been achieved for isotropic media as well as for single scattering. In this paper, we present an interactive global illumination algorithm for the simulation of scenes that include participating media, even anisotropic and/or inhomogeneous media. The position of the observer is important in order to render inhomogeneous media according to the transport equation. Previous work normally needed to be ray-based in order to compute this equation properly. Our approach is capable of achieving real time using two 3D textures on a simple desktop PC. For anisotropic participating media we combine density estimation techniques and graphics hardware capabilities.

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Authors and Affiliations

  1. GGGJ/Dept. Informática, University of Jaén, Campus Las Lagunillas, 23071, Jaén, Spain

    Juan-Roberto Jiménez

  2. GGG/IIiA, University of Girona, Campus de Montilivi, 17003, Girona, Spain

    Juan-Roberto Jiménez & Xavier Pueyo

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  1. Juan-Roberto Jiménez
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  2. Xavier Pueyo
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Correspondence to Juan-Roberto Jiménez.

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Jiménez, JR., Pueyo, X. Interactive rendering of globally illuminated scenes including anisotropic and inhomogeneous participating media. Visual Comput 21, 449–462 (2005). https://doi.org/10.1007/s00371-005-0300-8

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