Nanchang, China May 22 - 24, 2009

Nanchang, China May 22 - 24, 2009

WISA 2009

WISA 2009

Second International Symposium on

Web Information Systems and Applications

Second International Symposium on

Web Information Systems and Applications

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Proceedings of the 2nd International Symposium on Web Information Systems and Applications (WISA 2009)

Nanchang, China, May 22-24, 2009

Editors: Fei Yu, Jiexian Zeng, and Guangxue Yue

AP Catalog Number: AP-PROC-CS-09CN001

ISBN: 978-952-5726-00-8 (Print), 978-952-5726-01-5 (CD-ROM)

Page(s): 198-201

GPU-based Morphing Terrain Real-time Shadow Algorithm

Wang Xiaojun, Zhai Haitao, Xia Jie, Cui Zhiming

Full text: PDF

Abstract

In the large-scale terrain scene rendering, because of the complexity of the shadow algorithm, the algorithm of the real-time shadow have not been able to achieve satisfactory rate. In this situation, this paper proposed a GPU-based real-time shadow algorithm. It can be used for generating real-time shadow effect in morphing terrain rendering. First of all, this method pre-processes terrain data. It takes full advantage of modern graphics hardware to achieve a pixel-level calculation of the shadow in each frame. Experimental results show that the algorithm can meet the requirement of real-time shadow rendering in morphing terrain.

Index Terms

shadow of the real-time, shadow map, morphing terrain

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