Generalized minimum‐norm perspective shadow maps
Identifieur interne : 005089 ( Main/Merge ); précédent : 005088; suivant : 005090Generalized minimum‐norm perspective shadow maps
Auteurs : Fan Zhang [République populaire de Chine] ; Hanqiu Sun ; Chong Zhao ; Lifeng WangSource :
- Computer Animation and Virtual Worlds [ 1546-4261 ] ; 2008-12.
English descriptors
Abstract
Shadow mapping has been extensively used for real‐time shadow rendering in 3D computer games, though it suffers from the inherent aliasing problems due to its image‐based nature. This paper presents an enhanced variant of light space perspective shadow maps to optimize perspective aliasing distribution in possible general cases where the light and view directions are not orthogonal. To be mathematically sound, the generalized representation of perspective aliasing errors has been derived in detail. Our experiments have shown the enhanced shadow quality using our algorithm in dynamic scenes. Copyright © 2008 John Wiley & Sons, Ltd.
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DOI: 10.1002/cav.228
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