[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]
Copy
Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
35
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.