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Light Space Partitioned Shadow Maps
Bin TANG Jianxin LUO Guiqiang NI Weiwei DUAN Yi GAO
IEICE TRANSACTIONS on Information and Systems
Publication Date: 2017/01/01
Online ISSN: 1745-1361
Type of Manuscript: LETTER
Category: Computer Graphics
projection plane, dual-directional partitioning, light frusta,
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This letter proposes a Light Space Partitioned Shadow Maps (LSPSMs) algorithm which implements shadow rendering based on a novel partitioning scheme in light space. In stead of splitting the view frustum like traditional Z-partitioning methods, we split partitions from the projection of refined view frustum in light space. The partitioning scheme is performed dual-directionally while limiting the wasted space. Partitions are created in dynamic number corresponding to the light and view directions. Experiments demonstrate that high quality shadows can be rendered in high efficiency with our algorithm.