NDLI: Imperfect voxelized shadow volumes ( HPG '13 )

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Content Provider	ACM Digital Library
Author	Dai, Zeng Wyman, Chris
Abstract	Voxelized shadow volumes [Wyman 2011] provide a discretized view-dependent representation of shadow volumes, but are limited to point or directional lights. We extend them to allow dynamic volumetric visibility from area light sources using imperfect shadow volumes. We show a coarser visibility sampling suffices for area lights. Combining this coarser resolution with a parallel shadow volume construction enables interactive rendering of dynamic volumetric shadows from area lights in homogeneous single-scattering media, at under 4x the cost of hard volumetric shadows.
Starting Page	45
Ending Page	52
Page Count	8
File Format	PDF
ISBN	9781450321358
DOI	10.1145/2492045.2492050
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2013-07-19
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Shadows Area lights Voxelization Participating media
Content Type	Text
Resource Type	Article

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Imperfect voxelized shadow volumes ( HPG '13 )