Utkarsh, Are there any updates to the Surface LIC issues with ParaView 5.0.x / OpenGL2?
Is there a Bug that I should be following for this issue? My group uses Surface LIC a fair amount and we're encouraged by the performance increase of 5.0 over 4.4 so we'd really like to make the transition. Thank you, Andy On Thu, Dec 17, 2015 at 1:05 PM, Utkarsh Ayachit < utkarsh.ayac...@kitware.com> wrote: > Frank, > > First of all, thanks for all your exhausting testing, it's greatly > appreciated! > > * OSMesa and MESA_GL_VERSION_OVERRIDE > > Communicating with the Mesa team, we learnt that > MESA_GL_VERSION_OVERRIDE is a bad idea since it doesnt' really create > the specified OpenGL context. Thus if anything tries to use features > from the specific OpenGL version, the rendering would crash and burn. > Working with Brian Paul from the Mesa team, Ken recently pushed a fix > to VTK (after the RC2) that uses new OSMesa API to create the correct > OpenGL context. This new OSMesa API will appear in Mesa 11.2, however. > Earlier version can be patched using the "alpha" patch that Brian > provided us (attached). > > * Classic v/s llvm > > Your observation is indeed correct. llvmpipe is the way to go for > software rendering. On my builds, classic mesa was painstakingly slow > for rendering even small geometries. > > * Issues with LIC > > Another correct observation. There are a few regressions in the new > implementation for SurfaceLIC. Realistically, we may not be able to > address these before the 5.0 release. If you're using SurfaceLIC > heavily, I'd suggest building ParaView 5.0 with the older OpenGL > backend (or sticking with 4.4) for the interim. > > * OSMesa + SWR > > While currently I am not sure openswr+osmesa builds are possible, I > wouldn't be surprised if that on the roadmap. I am going to try to > contact the OpenSWR team to see if they have any thoughts on that. > > Utkarsh > > _______________________________________________ > Powered by www.kitware.com > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Please keep messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView > > Search the list archives at: http://markmail.org/search/?q=ParaView > > Follow this link to subscribe/unsubscribe: > http://public.kitware.com/mailman/listinfo/paraview > >
_______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Search the list archives at: http://markmail.org/search/?q=ParaView Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/paraview