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GPU Based Real-time Shadow Research in Large Ship-handling Simulator

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2 Author(s)
Yang Xiao ; Navigation Sci. & Technol. Inst., Dalian Maritime Univ. ; Jin Yicheng

Shadow can strengthen the reality of 3D virtual scene and provide important visual information for the objects' spatial 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 rendering 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 rendering of shadow

Published in:

Information Visualization, 2006. IV 2006. Tenth International Conference on

Date of Conference:

5-7 July 2006

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