Title
Compressed Multiresolution Hierarchies for High-Quality Precomputed Shadows.
Abstract
The quality of shadow mapping is traditionally limited by texture resolution. We present a novel lossless compression scheme for high-resolution shadow maps based on precomputed multiresolution hierarchies. Traditional multiresolution trees can compactly represent homogeneous regions of shadow maps at coarser levels, but require many nodes for fine details. By conservatively adapting the depth map, we can significantly reduce the tree complexity. Our proposed method offers high compression rates, avoids quantization errors, exploits coherency along all data dimensions, and is well-suited for GPU architectures. Our approach can be applied for coherent shadow maps as well, enabling several applications, including high-quality soft shadows and dynamic lights moving on fixed-trajectories.
Year
DOI
Venue
2016
10.1111/cgf.12835
Comput. Graph. Forum
Field
DocType
Volume
Computer vision,Texture compression,Computer science,S3 Texture Compression,Shadow mapping,Theoretical computer science,Artificial intelligence,Real-time computer graphics,Depth map,Quantization (signal processing),Computer graphics,Lossless compression
Journal
35
Issue
ISSN
Citations 
2
0167-7055
3
PageRank 
References 
Authors
0.40
16
3
Name
Order
Citations
PageRank
Leonardo Scandolo1124.71
Pablo Bauszat2778.25
Elmar Eisemann3356.55