High-Quality Adaptive Soft Shadow Mapping

13 years 4 months ago
High-Quality Adaptive Soft Shadow Mapping
The recent soft shadow mapping technique [GBP06] 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, that is more accurate and faster while reducing aliasing. Secondly, we present a shadow map multiresolution 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. Categ...
Gaël Guennebaud, Loïc Barthe, Mathias Pa
Added 12 Dec 2010
Updated 12 Dec 2010
Type Journal
Year 2007
Where CGF
Authors Gaël Guennebaud, Loïc Barthe, Mathias Paulin
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