According to the docs, mach64 implements 4:1 VQ de-compression, but there's no other info. Rage 128 also has a VQ texture format bit, according to the register header file. Sega dreamcast used a form of VQ compression also, I think.
On Fri, 31 Jan 2003, Ian Romanick wrote: > While I was searching around the net for papers on texture memory > management, I came across some references to Talisman and DirectX 6.0 > texture compression. It seems that the compression algorithm used is > called "TREC," which is short for "Texture and Rendering Compression." > > http://www.ubicom.tudelft.nl/docs/UbiCom-TechnicalReport_1998_6.PDF > http://research.microsoft.com/MSRSIGGRAPH/96/Talisman.htm > > Apparently, it is some sort of DCT based compression scheme. That would > explain why ATI is the only company to ever implement it in hardware. :) > > > > ------------------------------------------------------- > This SF.NET email is sponsored by: > SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! > http://www.vasoftware.com > _______________________________________________ > Dri-devel mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/dri-devel > -- Leif Delgass http://www.retinalburn.net ------------------------------------------------------- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
