Precomputed Atmospheric Scattering

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dc.contributor.authorBruneton, Ericen_US
dc.contributor.authorNeyret, Fabriceen_US
dc.date.accessioned2015-02-21T17:05:40Z
dc.date.available2015-02-21T17:05:40Z
dc.date.issued2008en_US
dc.description.abstractWe present a new and accurate method to render the atmosphere in real time from any viewpoint from ground level to outer space, while taking Rayleigh and Mie multiple scattering into account. Our method reproduces many effects of the scattering of light, such as the daylight and twilight sky color and aerial perspective for all view and light directions, or the Earth and mountain shadows (light shafts) inside the atmosphere. Our method is based on a formulation of the light transport equation that is precomputable for all view points, view directions and sun directions. We show how to store this data compactly and propose a GPU compliant algorithm to precompute it in a few seconds. This precomputed data allows us to evaluate at runtime the light transport equation in constant time, without any sampling, while taking into account the ground for shadows and light shafts.en_US
dc.description.number4en_US
dc.description.seriesinformationComputer Graphics Forumen_US
dc.description.volume27en_US
dc.identifier.doi10.1111/j.1467-8659.2008.01245.xen_US
dc.identifier.issn1467-8659en_US
dc.identifier.pages1079-1086en_US
dc.identifier.urihttps://doi.org/10.1111/j.1467-8659.2008.01245.xen_US
dc.publisherThe Eurographics Association and Blackwell Publishing Ltden_US
dc.titlePrecomputed Atmospheric Scatteringen_US
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27-Issue 4
EGSR08: 19th Eurographics Symposium on Rendering