https://github.com/mrdimas/tbc

Texture Block Compression (BCn) written in Rust
https://github.com/mrdimas/tbc

Last synced: 16 days ago
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Texture Block Compression (BCn) written in Rust

• Host: GitHub
• URL: https://github.com/mrdimas/tbc
• Owner: mrDIMAS
• License: mit
• Created: 2021-04-09T19:51:57.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2021-04-12T15:27:23.000Z (over 3 years ago)
• Last Synced: 2024-10-14T21:47:31.741Z (29 days ago)
• Language: Rust
• Homepage:
• Size: 16.6 KB
• Stars: 11
• Watchers: 4
• Forks: 2
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
## About

Texture Block Compression (BCn) written in Rust. Block compression is used to compress textures for GPU, 

there are lots of variations BC1 (DXT1), BC3 (DXT5), and so on. Compressed textures has much

lower requirements for memory bandwidth and especially useful for slow memory used by built-in GPUs.

Almost every GPUs starting from 1998 has **hardware** decompressor for compressed textures, so there is

no performance penalty of compression.

## Supported formats

- BC1 (DXT1)

- BC3 (DXT5)

- BC4 (Both R8 and RG8)

## References

- [Block compression guide from Microsoft](https://docs.microsoft.com/en-us/windows/win32/direct3d10/d3d10-graphics-programming-guide-resources-block-compression)

- [Real-Time DXT Compression by J.M.P. Van Waveren](https://www.researchgate.net/publication/259000525_Real-Time_DXT_Compression)

- [Understanding BCn Texture Compression Formats](https://www.reedbeta.com/blog/understanding-bcn-texture-compression-formats/)

- [OpenGL Data Format Specification](https://www.khronos.org/registry/DataFormat/specs/1.3/dataformat.1.3.html)