High-Quality Adaptive Soft Shadow Mapping

Abstract : The recent soft shadow mapping technique allows the rendering in real-time of convincing soft shadows on complex and dynamic scenes using a single shadow map. While attractive, this method suffers from shadow overestimation and becomes both expensive and approximate when dealing with large penumbrae. This paper proposes new solutions removing these limitations and hence providing an efficient and practical technique for soft shadow generation. First, we propose a new visibility computation procedure based on the detection of occluder contours which is more accurate and faster while reducing aliasing. Secondly, we present a shadow map multi-resolution strategy keeping the computation complexity almost independent on the light size while maintaining high-quality rendering. Finally, we propose a view dependent adaptive strategy, that automatically reduces the screen resolution in the region of large penumbrae, thus allowing us to keep very high frame rates in any situation.
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Article dans une revue
Computer Graphics Forum, Wiley, 2007, Proceedings of Eurographics 2007, 26 (3), pp.525-534
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https://hal.inria.fr/inria-00355007
Contributeur : Gaël Guennebaud <>
Soumis le : mercredi 21 janvier 2009 - 16:39:41
Dernière modification le : mercredi 12 septembre 2018 - 17:46:02

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  • HAL Id : inria-00355007, version 1

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Gael Guennebaud, Loïc Barthe, Mathias Paulin. High-Quality Adaptive Soft Shadow Mapping. Computer Graphics Forum, Wiley, 2007, Proceedings of Eurographics 2007, 26 (3), pp.525-534. 〈inria-00355007〉

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