International Conference on Computer Graphics, Imaging and Visualisation (CGIV'06) (2006)
July 26, 2006 to July 28, 2006
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/CGIV.2006.48
Yang Xiao , Dalian Maritime University, China
Jin Yicheng , Dalian Maritime University, China
Yin Yong , 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
Y. Xiao, Y. Yong, J. Yicheng and W. Zhuoyu, "GPU Based Real-time Shadow Research," International Conference on Computer Graphics, Imaging and Visualisation (CGIV'06)(CGIV), Sydney, Australia, 2006, pp. 372-377.