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Practical HDR texture compression

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Author

Summary, in English

The use of high dynamic range (HDR) textures in real-time graphics applications can increase realism and provide a more vivid experience. However, the increased bandwidth and storage requirements for uncompressed HDR

data can become a major bottleneck. Hence, several recent algorithms for HDR texture compression have been

proposed. In this paper, we discuss several practical issues one has to confront in order to develop and implement HDR texture compression schemes. These include improved texture filtering and efficient offline compression.

For compression, we describe how Procrustes analysis can be used to quickly match a predefined template shape against chrominance data. To reduce the cost of HDR texture filtering, we perform filtering prior to the color transformation, and use a simple trick to reduce the incurred errors. We also introduce a number of novel compression modes, which can be combined with existing compression schemes, or used on their own.

Publishing year

2008

Language

English

Pages

1664-1676

Publication/Series

Computer Graphics Forum

Volume

27

Issue

6

Document type

Journal article

Publisher

Wiley-Blackwell

Topic

  • Computer Science

Keywords

  • Texture compression
  • data compaction
  • Real-time graphics

Status

Published

Research group

  • Computer Graphics

ISBN/ISSN/Other

  • ISSN: 1467-8659