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Compressed facade displacement maps
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| Venue: | IEEE Transactions on Visualization and Computer Graphics |
| Citations: | 5 - 1 self |
BibTeX
@ARTICLE{Ali_compressedfacade,
author = {Saif Ali and Jieping Ye and Anshuman Razdan and Peter Wonka},
title = {Compressed facade displacement maps},
journal = {IEEE Transactions on Visualization and Computer Graphics},
year = {},
pages = {2009}
}
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Abstract
Abstract—We describe an approach to render massive urban models. To prevent a memory transfer bottleneck, we propose to render the models from a compressed representation directly. Our solution is based on rendering crude building outlines as polygons and generating details by ray-tracing displacement maps in the fragment shader. We demonstrate how to compress a displacement map so that a decompression algorithm can selectively and quickly access individual entries in a fragment shader. Our prototype implementation shows how a massive urban model can be compressed by a factor of 85 and outperform a basic geometry-based renderer by a factor of 40 to 80 in rendering speed. Index Terms—Massive urban models, displacement mapping, real-time rendering, compression. Ç 1
Keyphrases
facade displacement map fragment shader massive urban model access individual entry displacement map real-time rendering compressed representation memory transfer bottleneck prototype implementation ray-tracing displacement map decompression algorithm displacement mapping basic geometry-based renderer index term massive urban model crude building outline
