UM
Improved variance shadow maps based on non-linear wrapping
Lv W.1; Liu X.1; Wu E.1
2008-12-01
Source PublicationJournal of Information and Computational Science
ISSN15487741
Volume5Issue:6Pages:2415-2421
AbstractVariance shadow maps algorithm reduces aliasing by pre-filtering the depth texture from which an occlusion probability up-bound is computed. But for scenes with high depth complexity this method is unable to correctly describe the visibilities and can bring on light area in shadow regions which is called light bleeding. This paper presents a method to reduce the light bleeding problem by computing two occlusion probability up-bounds. One is the origin variance shadow maps bound and the other bound is got by the wrapped depth value which is mapped by a non-linear high order power function. During rendering, we take the minimum of the two bounds. Results show that this method can reduce both light bleeding which is introduced by variance shadow map and the shadow edge discontinuity problem which is caused by the wrapped method. © 2008 Binary Information Press December 2008.
KeywordAnti-aliasing Shadow maps Variance shadow maps
URLView the original
Language英語English
Fulltext Access
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Institute of Software Chinese Academy of Sciences
2.Universidade de Macau
3.University of Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Lv W.,Liu X.,Wu E.. Improved variance shadow maps based on non-linear wrapping[J]. Journal of Information and Computational Science,2008,5(6):2415-2421.
APA Lv W.,Liu X.,&Wu E..(2008).Improved variance shadow maps based on non-linear wrapping.Journal of Information and Computational Science,5(6),2415-2421.
MLA Lv W.,et al."Improved variance shadow maps based on non-linear wrapping".Journal of Information and Computational Science 5.6(2008):2415-2421.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Lv W.]'s Articles
[Liu X.]'s Articles
[Wu E.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Lv W.]'s Articles
[Liu X.]'s Articles
[Wu E.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Lv W.]'s Articles
[Liu X.]'s Articles
[Wu E.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.