[GRASS-dev] Re: [GRASS GIS] #104: saving display to tiff or ppm
garbled when NVIZ is not top window
glynn at gclements.plus.com
Fri Mar 28 15:46:51 EDT 2008
GRASS GIS wrote:
> #104: saving display to tiff or ppm garbled when NVIZ is not top window
> Comment (by msieczka):
> Replying to [comment:11 glynn]:
> > Oh, another thing to check: export LIBGL_ALWAYS_INDIRECT=1
> Still crashes. Same debug output.
I don't have any other suggestions at this point.
FWIW, I've back-ported the pBuffer fixes to the 6.3.0 branch.
It would be useful if we could get as many people as possible to try
using the GLXPixmap and/or pBuffer code, and reporting success or
failure, along with their platform details (OS, X version(s), video
hardware, preferably xdpyinfo and glxinfo output).
For 6.3.0, these have to be specifically enabled by setting
GRASS_GLX_PBUFFERS and/or GRASS_GLX_PIXMAPS (the value is irrelevant,
they just need to be set) before starting NVIZ.
In the trunk version, they are enabled by default, and can be disabled
by setting GRASS_NO_GLX_PBUFFERS and/or GRASS_NO_GLX_PIXMAPS (to
Note that the pBuffer code requires GLX 1.3, which (AFAICT) is only
available with nVidia's OpenGL driver. If you don't have GLX 1.3,
setting GRASS_GLX_PBUFFERS has no effect.
If both pBuffers and GLXPixmaps are enabled and functional, pBuffers
are used; you'll need to explicitly disable pBuffers to test the
Glynn Clements <glynn at gclements.plus.com>
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