On Thursday 03 March 2005 15:04, Melchior FRANZ wrote: > * Roberto Inzerillo -- Thursday 03 March 2005 14:10: > > Of course Melchior, correcting this single case will not change any FGFS > > performance at all and disk space is so cheap that the overhead of those > > 37483 bytes costs around 0,00025 Euro Cents today. > > Yes. Disk space isn't expensive these days. But it's also about bandwidth. > The files don't magically appear on your cheap harddisk. ;-) > > To annoy you all even more. Here's the latest comparison: The directories > Aircraft/, Models/, Scenery/, Textures/, and Textures.high/ once as they > are in CVS, and once with all *.rgb, *.rgba, *.RGB optimized. Makes a > difference of no less than 34.2 MB that we are wasting now with redundant > information. This could be saved alone with better lossless compression, > without changing the image information one bit. > > In the case of SGI files, you can't save anything with using less bits per > pixel & layer, because the SGI image formats that supported this are > declared obsolete, and neither plib, nor blender, nor gimp, etc. can work > with them. Internally, plib always uses one byte per pixel and layer. > > m.
What about using the *.dds format to store textures? It supports S3TC texture compression and a plugin for gimp can be found here: http://nifelheim.dyndns.org/~cocidius/dds/ Format spec.: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/directx9_c/directx/graphics/reference/ddsfilereference/ddsfileformat.asp More Infos: http://developer.nvidia.com/object/nv_texture_tools.html http://www.ati.com/developer/tools.html Yes, it is a format from Microsoft, but the necessary algorithms are from S3TC which are part of OpenGL today: It's in GL_ARB_texture_compression and GL_EXT_texture_compression_s3tc. All what is necessary is an OpenGL driver with S3TC texture compression. Best Regards, Oliver C. _______________________________________________ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
