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CGI
2006
IEEE

Real-Time Shadow Volume Algorithm for Subdivision Surface Based Models

9 years 6 months ago
Real-Time Shadow Volume Algorithm for Subdivision Surface Based Models
This paper presents a purely hardware-accelerated shadow volume algorithm for subdivision surface based models. By introducing SP (subdivision patterns), all procedures, including subdivision evaluation, silhouette extraction, shadow volume generation, and shadow rendering are executed on GPU (Graphics Process Units) efficiently. This not only alleviates the burden of CPU, but also guarantees the consistency of data among different processing stages. This also makes it possible to integrate some special effects imposed by other shaders, e.g., displacement mapping or vertex texturing, with the shadow volume algorithm. Experiments show that the algorithm is efficient, robust, and can be easily extended to other subdivision schemes and parametric surfaces.
Min Tang, Jinxiang Dong, Shang-Ching Chou
Added 10 Jun 2010
Updated 10 Jun 2010
Type Conference
Year 2006
Where CGI
Authors Min Tang, Jinxiang Dong, Shang-Ching Chou
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