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Practical HDR texture compression

In English

Författare

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.

Publiceringsår

2008

Språk

Engelska

Sidor

1664-1676

Publikation/Tidskrift/Serie

Computer Graphics Forum

Volym

27

Issue

6

Dokumenttyp

Artikel i tidskrift

Förlag

Wiley-Blackwell

Ämne

  • Computer Science

Nyckelord

  • Texture compression
  • data compaction
  • Real-time graphics

Status

Published

Forskningsgrupp

  • Computer Graphics

ISBN/ISSN/Övrigt

  • ISSN: 1467-8659