[Xquartz-dev] 2.3.3_rc1
Jack Howarth
howarth at bromo.med.uc.edu
Mon Mar 9 20:50:42 PDT 2009
The author of vmd-xplor added...
if [ `/usr/bin/uname -m` = "i386" ]; then
# I get too many complaints when these are not set.
#
VMDSIMPLEGRAPHICS=1
LIBGL_ALWAYS_INDIRECT=1
export VMDSIMPLEGRAPHICS LIBGL_ALWAYS_INDIRECT
fi
to the vmd-xplor startup script. I guess the alternative is to
take a look at those cases where vmd-xplor has issues (like
on a HD2600 with 2.3.3-rc1) and fix them in libGL.
Jack
On Mon, Mar 09, 2009 at 08:39:24PM -0700, Jeremy Huddleston wrote:
> We don't intend to support indirect rendering with the new libGL in the
> short term. It's really too slow and only useful when the X client is on
> a remote system (which is rarely the case for OSX apps). Are you running
> vmd-xplor on a remote system for some reason? If that were the case,
> then I'd expect glxinfo to actually bail with an AppleDRI error.
>
> --Jeremy
>
> On Mar 9, 2009, at 17:13, Jack Howarth wrote:
>
>> George,
>> I believe I have figured out the origin of the problems
>> with vmd-xplor on 2.3.3-rc1. The problem is that the new
>> GLX/DRI code doesn't honor LIBGL_ALWAYS_INDIRECT when it
>> is set. Under X11 2.3.2.1, I get...
>>
>> [Macintosh-2:~] howarth% setenv LIBGL_ALWAYS_INDIRECT 1
>> [Macintosh-2:~] howarth% glxinfo | grep direct
>> direct rendering: No (LIBGL_ALWAYS_INDIRECT set)
>>
>> whereas under 2.3.3-rc1, I get...
>>
>> [Macintosh-2:~] howarth% setenv LIBGL_ALWAYS_INDIRECT 1
>> [Macintosh-2:~] howarth% glxinfo | grep direct
>> Xlib: extension "Generic Event Extension" missing on display "/tmp/
>> launch-W4Xpc5/:0".
>> Xlib: extension "Generic Event Extension" missing on display "/tmp/
>> launch-W4Xpc5/:0".
>> direct rendering: Yes
>>
>> If you can fix this in the GLX, I can test it to see if this
>> eliminates the issues with vmd-xplor on the HD2600.
>> Jack
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>
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