Compact precomputed voxelized shadows

Sintorn, Erik, Kaempe, Viktor, Olsson, Ola and Assarsson, Ulf (2014). Compact precomputed voxelized shadows. In: 41st International Conference and Exhibition on Computer Graphics and Interactive Techniques, ACM SIGGRAPH 2014, Vancouver, BC, (). August 10-14, 2014. doi:10.1145/2601097.2601221


Author Sintorn, Erik
Kaempe, Viktor
Olsson, Ola
Assarsson, Ulf
Title of paper Compact precomputed voxelized shadows
Conference name 41st International Conference and Exhibition on Computer Graphics and Interactive Techniques, ACM SIGGRAPH 2014
Conference location Vancouver, BC
Conference dates August 10-14, 2014
Journal name ACM Transactions on Graphics   Check publisher's open access policy
Place of Publication New York, United States
Publisher A C M Special Interest Group
Publication Year 2014
Sub-type Fully published paper
DOI 10.1145/2601097.2601221
Open Access Status Not Open Access
ISSN 0730-0301
1557-7368
Volume 33
Issue 4
Total pages 8
Language eng
Formatted Abstract/Summary
Producing high-quality shadows in large environments is an important and challenging problem for real-time applications such as games. We propose a novel data structure for precomputed shadows, which enables high-quality filtered shadows to be reconstructed for any point in the scene. We convert a high-resolution shadow map to a sparse voxel octree, where each node encodes light visibility for the corresponding voxel, and compress this tree by merging common subtrees. The resulting data structure can be many orders of magnitude smaller than the corresponding shadow map. We also show that it can be efficiently evaluated in real time with large filter kernels.
Keyword Precomputed
Real-time
Shadows
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status Non-UQ

 
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