On 17.09.2014 22:02, Marek Olšák wrote:
From: Marek Olšák <marek.ol...@amd.com>
Some users don't understand that these variables can break OpenGL.
The general is rule is that if an app supports MSAA, you mustn't use
GALLIUM_MSAA.
For example, if an app has an 8xMSAA FBO and GALLIUM_MSAA=4
is set, resolving the FBO to the back buffer will be rejected which will look
like this on all gallium drivers:
http://www.phoronix.com/scan.php?page=article&item=amd_radeonsi_msaa
The environment variables also have no effect on modern apps like TF2, but
there is still a performance hit due to wasted bandwidth and VRAM.
In a nutshell, it does more harm than good.
Cc: 10.2 10.3 <mesa-sta...@lists.freedesktop.org>
Reviewed-by: Michel Dänzer <michel.daen...@amd.com>
--
Earthling Michel Dänzer | http://www.amd.com
Libre software enthusiast | Mesa and X developer
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