On Wednesday 10 July 2002 07:59 pm, Leif Delgass wrote: > On Thu, 11 Jul 2002, José Fonseca wrote: > > Allen, thanks for the detailed report of the problems. It's gonna take a > > little time (at least for me) to reproduce all this (I have been a little > > busy lately and I still have some changes I want to do on the driver > > before I can look into it) but it will be done.
No problem. > > Note also that there are some OpenGL conformance issues which have been > > neglected so far, and which can be the cause behind of some of these > > problems. At any rate your cases will help to determine that. > > I'm > not sure that the banding in textures is really a bug. At 16-bit, > RGBA/RGBA8 textures use stored in an ARGB4444 format, and RGB/RGB8 > textures are stored as RGB565, so there is less color information in the > textures with an alpha channel. The test looks the same on the Rage 128 > as on Mach 64. I guess this is what I expected. Is there a way to keep the full resolution of the texture image until it is shipped off to the hardware, or is that what you mean by "stored as ARGB4444"? > The registration problem with the stipple test may be a > result of the conformance problems Jose mentioned. The stippled lines are > rendered in software, so the difference in placement is likely a result of > slight errors in the coordinates on the hardware path. I've noticed gaps > between triangles in places and some problems with texture coordinates as > well. I think these first appeared with the Mesa 4.x merge. OK. Thanks for looking into this. Allen ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek PC Mods, Computing goodies, cases & more http://thinkgeek.com/sf _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
