Over bij Voodoo Extreme staat een vrij techie artikel over de FXT1 Compression techniek van 3dfx. Hieronder heb je vast een klein gedeelte, lees de rest hier.
Texture compression is the process of removing redundant image information from the texture data. There are lossless texture compression algorithms, which when uncompressed yield the original compressed image (such as .GIF, .PCX, and .PNG) and lossy compression techniques, such as .JPG, which employ techniques which greatly compress images (textures) at the cost of image fidelity. The texture compression employed in FXT uses a lossy compression algorithm which generates textures with the same compression ratio every time. This is extremely efficient for bandwidth and storage concerns, because a constant compression ratio helps eliminate "hick ups" (temporary bandwidth bottlenecking, for example) which can occur if a certain image is not readily compressed, or not compressed as well as the others. (As is the case with GIF, PNG, and JPG)