[Paraview-developers] VTK and ParaView with OSMesa

[Utkarsh Ayachit]

Great post, Burlen.

Utkarsh

On Mon, Nov 18, 2013 at 1:24 PM, Burlen Loring <burlen.loring at gmail.com> wrote:
> Hi All,
>
> VTK 6.1 will take full advantage of OpenGL features in OSMesa. In the past
> this hadn't been the case, a number of key algorithms or classes that
> algorithms depended on were explicitly disabled when OSMesa was detected.
> I've been investigating use of the new 9.2.2 Mesa release in which OSMesa
> can take advantage of the VMWare's Gallium llvmpipe back-end. The advantages
> of this back-end over the classic OSMesa  back-end are better OpenGL
> extension support, threading, and use of LLVM/clang for shader compilation.
> The llvmpipe backend is quite a bit faster on shader heavy algorithms and
> supports Surface LIC while the classic back-end does not.  In the recent
> Mesa 9.2.2 release it finally works flawlessly with pvbatch.
>
> The Mesa 9.2.2 release configured with the Gallium llvmpipe OSMesa state
> tracker should be the recommended Mesa release for off-screen rendering in
> VTK and ParaView and I've updated the wiki with build instructions and some
> rendering benchmarks.
> http://paraview.org/Wiki/ParaView/ParaView_And_Mesa_3D
> I've left a link to the old page, if there are no objections I'd like to
> remove it.
>
> I've set up ParaView and VTK dashboards for the new 9.2.2 Mesa release
> http://open.cdash.org/index.php?project=VTK&filtercount=1&showfilters=1&field1=site/string&compare1=63&value1=rocky
> http://open.cdash.org/index.php?project=ParaView&filtercount=1&showfilters=1&field1=site/string&compare1=63&value1=rocky
>
> If you guys see anything wrong with it , please let me know.
>
> Thanks
> Burlen
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