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Notes |
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(0032448)
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Utkarsh Ayachit
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2014-03-03 17:23
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Alan,
Which mesa version are you using? |
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(0032449)
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Alan Scott
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2014-03-03 17:26
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Sorry, should have included that. 7.10.3.
Alan |
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(0032451)
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Utkarsh Ayachit
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2014-03-03 17:28
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David,
You'll have to build with Mesa. I believe the problem is stemming from Burlen's changes to vtkOpenGLProjectedTetrahedraMapper. |
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(0032457)
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David C. Lonie
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2014-03-05 14:39
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I can reproduce this, I'll start digging around for the cause. |
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(0032459)
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David C. Lonie
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2014-03-06 15:46
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The warnings, at least, seem to be caused by Mesa 7.10.3 not supporting GL_ARB_texture_float. I've not been able to reproduce the crash, but updating the logic in the mapper may solve this for you.
Alan, can you test out the VTK patch http://review.source.kitware.com/#/t/4034/ [^] and see if this fixes the crash? It should at least fix the warnings (except for 'Missing FBO support.' -- that one is legit).
Dave |
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(0032493)
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Utkarsh Ayachit
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2014-03-20 08:32
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Topics merged in master
(VTK) 14258-remote-polyhedra
14580-top-level-checkbox
14584-frequency-live-view
(VTK) 14614-report-numpy
(VTK) 14615-volume-rendering-tet-crash
animation-movie-compressor-support
(VTK) catalyst-web-interactive-composite
data_template_redefine
(VTK) enable_subclassing_vtkControlPointsItems
ensemble-reader
expand_fragment_integration
fix-variable-referece
fix_qt5_dashboard_failures
(VTK) probe_enhancements
sciberquest-test-timeout
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(0032508)
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Alan Scott
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2014-03-20 21:18
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Nope, still crashes. Details:
* With regards to the warning, we get a warning for every process. If I have 4000 processes, that is an unacceptable number of warnings. Please cut it back to 1.
* "Missing FBO support. The algorithm may produce visual artifacts" isn't descriptive. Is it possible to elaborate? What type of FBO support? Be more verbose, but do it only if the build is debug. (Actually, it could be that way, I am not sure.)
* Why are we missing FBO support now, but 4.1.0 worked fine without complaint? PV 4.2.0 must continue to do volume rendering, in parallel, remote server, with Mesa (for instance, 7.*.*)
Last, it still crashes. Did you try replicating on 8 servers? Here is the crash dump (I have a debug build, but the output looks like release..):
(I have cut out 7 of every 8 lines of output, for brevity.)
I will send directly to David and Utkarsh
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(0032509)
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Alan Scott
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2014-03-20 21:20
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I forgot - to get to the crash, you need to click in the 3d window. |
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(0032521)
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David C. Lonie
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2014-03-21 12:41
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I've managed to reproduce the crash -- it appears a double click triggers it, which triggers a SelectCells operation on the server for the clicked point.
While rendering the geometry to prepare for the pick, the vtkOpenGLProjectedTetrahedraMapper has a NULL input dataset, which ultimately causes the crash. Now to figure out why that is... |
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(0032533)
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David C. Lonie
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2014-03-24 15:34
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Patched volume mappers to handle NULL vtkPoints instances gracefully. |
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(0032539)
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Utkarsh Ayachit
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2014-03-28 11:55
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---------------------------------------------
Topics merged into master:
14557-color-legend-update
14580-top-level-checkbox
(VTK) 14615-fix-mpi-segfault
14650_check_bounds
catalyst-web
delaunay3d-alpha-bools
fix_qt5_dashboard_failures
pvweb-doc-update
(VTK) vtk_02_20_2014
14632-find-data-query-combobo |
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(0032555)
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Alan Scott
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2014-04-08 19:07
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Nice. Tested remote server, Linux, master. |
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(0033851)
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Erwin
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2014-11-26 20:30
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Issue still persists on a local Windows 7 X64 desktop. Following the steps for Exercise 2.14 of the tutorial book ParaviewTutorial42 I get the following error:
ERROR: In C:\DBD\pvs-x64\paraview\src\paraview\VTK\Rendering\VolumeOpenGL\vtkOpenGLProjectedTetrahedraMapper.cxx, line 185
vtkOpenGLProjectedTetrahedraMapper (00000000168447A0): The required extensions are not supported.
ERROR: In C:\DBD\pvs-x64\paraview\src\paraview\VTK\Rendering\VolumeOpenGL\vtkOpenGLProjectedTetrahedraMapper.cxx, line 185
vtkOpenGLProjectedTetrahedraMapper (000000000B765D40): The required extensions are not supported.
Using Paraview version 4.2.0 64-bit |
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(0033852)
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Alan Scott
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2014-11-26 20:56
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Erwin,
There have been a few problems with volume rendering (and Mesa) that have been fixed in the developers tree since ParaView 4.2.0. These fixes will be rolled out in the next few months as ParaView 4.3.0. Further, this bug was for remote server - your bug is local server. Thus, I am closing this bug.
If you think there is a bug in volume rendering, please write up a new bug report. Assuming you are testing local server (Windows, not connecting to a remote server), you could also download a nightly from Kitware, and try that. Further, guessing here - I bet you have older OpenGL drivers that is causing this issue in 4.2.0 (the issue will be masked in 4.3.0). You may want to try updating your graphics drivers.
As always, thanks for reporting bugs! That's one of the wonders of OpenSource - we all get to work together to create a better product. Thank you.
Alan |
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