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2013 10th International Conference Computer Graphics, Imaging and Visualization (2006)
Sydney, Australia
July 26, 2006 to July 28, 2006
ISBN: 0-7695-2606-3
pp: 372-377
Yang Xiao , Dalian Maritime University, China
Yin Yong , Dalian Maritime University, China
Jin Yicheng , Dalian Maritime University, China
Wu Zhuoyu , Dalian Maritime University, China
Shadow can strengthen the reality of 3D virtual scene and provide important visual information for the objects? spacial relationship in the scene. This paper presents a GPU based method for all the process of shadow volume algorithm. It can achieve greater shadow performance in Ship-handling simulator than previous methods by migrating the silhouette extraction and shadow volume rending to GPU, and applying a series of techniques for culling, clipping, and simplifying shadow volume geometry. We make a series of optimization for the visual system of the ship-handling simulator such as limit the range of illumination, the alternation of z-pass and z-fail algorithm, using the ultra shadow technology and two sided stencil buffer to accelerate the rending of shadow.
virtual environment; shadow; GPU method; ultra-shadow; stencil buffer
Yang Xiao, Yin Yong, Jin Yicheng, Wu Zhuoyu, "GPU Based Real-time Shadow Research", 2013 10th International Conference Computer Graphics, Imaging and Visualization, vol. 00, no. , pp. 372-377, 2006, doi:10.1109/CGIV.2006.48
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