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https://bugs.freedesktop.org/show_bug.cgi?id=8410
Summary: Color3 and Color4 differences; Possible non-conformance
to OpenGL specs
Product: Mesa
Version: 6.5
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: GLX
AssignedTo: [email protected]
ReportedBy: [EMAIL PROTECTED]
I have a Radeon 9550 and I'm using the OSS radeon driver in Ubuntu Edgy. MESA is
6.5.1~20060817-0ubuntu2. The driver works very well, except for this problem.
In Doomsday (3D Doom/Heretic/Hexen source port with many enhancements), the sky
looks like a "hall of mirrors". Screenshot: http://darka.liero.be/skyhom.jpg
It's been reproduced with other cards using different OSS drivers before:
http://forums.newdoom.com/showthread.php?t=26297 (Matrox)
http://forums.newdoom.com/showthread.php?t=24012 (Older Radeon)
http://sourceforge.net/tracker/index.php?func=detail&aid=1499272&group_id=74815&atid=542099
(Intel)
Apparently the OpenGL specification says:
"The Color command has two major variants: Color3 and Color4. The four value
versions set all four values. The three value versions set R, G, and B to the
provided values; A is set to 1.0."
It seems it's not exactly like that in Mesa.
Please see this bug and its discussion:
http://sourceforge.net/tracker/index.php?func=detail&aid=1499272&group_id=74815&atid=542099
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