5655

Colored stochastic shadow maps

Morgan McGuire, Eric Enderton
NVIDIA
Symposium on Interactive 3D Graphics and Games, I3D ’11, 2011

@inproceedings{mcguire2011colored,

   title={Colored stochastic shadow maps},

   author={McGuire, M. and Enderton, E.},

   booktitle={Symposium on Interactive 3D Graphics and Games},

   pages={89–96},

   year={2011},

   organization={ACM}

}

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This paper extends the stochastic transparency algorithm that models partial coverage to also model wavelength-varying transmission. It then applies this to the problem of casting shadows between any combination of opaque, colored transmissive, and partially covered (i.e., ?-matted) surfaces in a manner compatible with existing hardware shadow mapping techniques. Colored Stochastic Shadow Maps have a similar resolution and performance profile to traditional shadow maps, however they require a wider filter in colored areas to reduce hue variation.
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