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Study of Traditional Soft Shadow Algorithm OptimizationTechnology in the GPGPU Framework
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[1]GAO Minglei,ZHAO Xincan,ZHAN Yun.Study of Traditional Soft Shadow Algorithm OptimizationTechnology in the GPGPU Framework[J].Journal of Zhengzhou University (Engineering Science),2014,35(06):64-68.[doi:10.3969/j.issn.1671-6833.2014.06.016]
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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 35卷 Number of periods: 2014 06 Page number: 64-68 Column: Public date: 2014-11-25
Title:
Study of Traditional Soft Shadow Algorithm OptimizationTechnology in the GPGPU Framework
Author(s):
GAO Minglei; ZHAO Xincan; ZHAN Yun
School of Information Engineering, Zhengzhou University,Zhengzhou 450001 , China
Keywords:
CPGPU; PCSS; summed area table
CLC:
TP391
DOI:
10.3969/j.issn.1671-6833.2014.06.016
Abstract:
Aiming at the realistie need of shadow rendering, on the basis of the PCSS algorithm, this paperputs forward a solt shadow generation algorithm based on GPCPU. lt samples a region by poisson disk patterninstead of regular sampling mode, uses depth gradient to deal with the phenomenon of self-shadowing, uses theVSM algorithm to filter the shadow, and uses the summed area table to filter the shadow map dynamieally,which can improve the shadow qualily and rendering efficieney in a certain extent.
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