# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?no_subcategories=false&page=1

[Latest](https://discourse.paraview.org/latest.md) · [Categories](https://discourse.paraview.org/categories.md) · [Tags](https://discourse.paraview.org/tags.md)

**Page:** 2

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## [Confusion about using the PVD reader from Python](https://discourse.paraview.org/t/confusion-about-using-the-pvd-reader-from-python/17658)

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**Author:** [@CsatiZoltan](https://discourse.paraview.org/u/CsatiZoltan)\
**Replies:** 3\
**Last updated:** [August 6, 2026, 6:57pm UTC](https://discourse.paraview.org/t/confusion-about-using-the-pvd-reader-from-python/17658 "2026-08-06T18:57:27Z")

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I want to read a .pvd file from within a Python algorithm, and pass the underlying object (in my case a vtkMultiBlockDataSet) to an output port of my filter. So that my plugin be self-contained, I do not open the file wi…

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## [EGL rendering stays at 0% GPU use in ParaView 6.0.0/6.0.1 under Docker+WSL2, even though CUDA/VisRTX works fine in the same process](https://discourse.paraview.org/t/egl-rendering-stays-at-0-gpu-use-in-paraview-6-0-0-6-0-1-under-docker-wsl2-even-though-cuda-visrtx-works-fine-in-the-same-process/17669)

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**Author:** [@josebastiase](https://discourse.paraview.org/u/josebastiase)\
**Replies:** 0\
**Last updated:** [August 3, 2026, 2:11pm UTC](https://discourse.paraview.org/t/egl-rendering-stays-at-0-gpu-use-in-paraview-6-0-0-6-0-1-under-docker-wsl2-even-though-cuda-visrtx-works-fine-in-the-same-process/17669 "2026-08-03T14:11:13Z")

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Setup: Windows 11 + WSL2, RTX 4060 Laptop GPU, driver 581.32/CUDA 13.0. Docker (native in WSL2, not Desktop) + NVIDIA Container Toolkit 1.19.1, --gpus all. ParaView 6.0.0 official Linux binary, confirmed via pvpython --v…

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## [Visualize PeleC Simulation Result](https://discourse.paraview.org/t/visualize-pelec-simulation-result/17660)

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**Author:** [@Boyuan\_Yu](https://discourse.paraview.org/u/Boyuan_Yu)\
**Replies:** 2\
**Last updated:** [July 29, 2026, 10:39pm UTC](https://discourse.paraview.org/t/visualize-pelec-simulation-result/17660 "2026-07-29T22:39:08Z")

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Hi, I am learning how to use PeleC and I have a very simple 2D simulation. The file contains 34 snapshots and I want to add all folders to the ‘builtin’. However, when I do it, paraview crashes. Could you please tell me…

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## [Problems reading Ensight Case Gold file exported from Ansys Fluent](https://discourse.paraview.org/t/problems-reading-ensight-case-gold-file-exported-from-ansys-fluent/16902)

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**Author:** [@enrisang](https://discourse.paraview.org/u/enrisang)\
**Replies:** 7\
**Last updated:** [July 29, 2026, 12:24pm UTC](https://discourse.paraview.org/t/problems-reading-ensight-case-gold-file-exported-from-ansys-fluent/16902 "2026-07-29T12:24:02Z")

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Hi, I am running fluid dynamics simulations with ANSYS Fluent. I usually export the results to Ensight Case Gold in ASCII format and post-process them successfully in Paraview 5.13. However, when I try to export the res…

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## [Getting "Byte order could not be determined" error when opening up Ensight Case Gold files written from ANSYS Fluent 2021R2](https://discourse.paraview.org/t/getting-byte-order-could-not-be-determined-error-when-opening-up-ensight-case-gold-files-written-from-ansys-fluent-2021r2/12250)

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**Author:** [@austinbenny](https://discourse.paraview.org/u/austinbenny)\
**Replies:** 18\
**Last updated:** [July 29, 2026, 8:50am UTC](https://discourse.paraview.org/t/getting-byte-order-could-not-be-determined-error-when-opening-up-ensight-case-gold-files-written-from-ansys-fluent-2021r2/12250 "2026-07-29T08:50:07Z")

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My workflow is to have ANSYS Fluent 2021R2 write Ensight Case Gold files that i then post-process in paraview. I could successfully do this before with a different simulation (the ANSYS Fluent version and paraview versio…

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## [No Med Reader plugin on paraview 6.0.0 (NixOS issue?)](https://discourse.paraview.org/t/no-med-reader-plugin-on-paraview-6-0-0-nixos-issue/17152)

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**Author:** [@Samuel\_Roudninski](https://discourse.paraview.org/u/Samuel_Roudninski)\
**Replies:** 5\
**Last updated:** [July 27, 2026, 2:33pm UTC](https://discourse.paraview.org/t/no-med-reader-plugin-on-paraview-6-0-0-nixos-issue/17152 "2026-07-27T14:33:55Z")

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Hello! Disclaimer: I know that Salome-meca does everything I need but I didn’t find a way yet to open salome with singularity on NixOS (app don’t open and terminal exit). And btw if someone knows how to build it from so…

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## [Difference between Find Data MaxValue of TemporalStatistics results and Find Data nearest the identified point](https://discourse.paraview.org/t/difference-between-find-data-maxvalue-of-temporalstatistics-results-and-find-data-nearest-the-identified-point/17663)

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**Author:** [@etterac](https://discourse.paraview.org/u/etterac)\
**Replies:** 3\
**Last updated:** [July 27, 2026, 2:04pm UTC](https://discourse.paraview.org/t/difference-between-find-data-maxvalue-of-temporalstatistics-results-and-find-data-nearest-the-identified-point/17663 "2026-07-27T14:04:47Z")

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Hello, I’m using and old ParaView 5.6.0 64-bit on Linux Workstation to analyze CFD vtp unsteady results files. The concern is to find the maximum local value inside these hundreds of files. My problem is that I obtain …

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## [Custom filter to copy/paste repetive pipeline operation](https://discourse.paraview.org/t/custom-filter-to-copy-paste-repetive-pipeline-operation/4556)

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**Author:** [@yek\_irani](https://discourse.paraview.org/u/yek_irani)\
**Replies:** 6\
**Last updated:** [July 27, 2026, 11:39am UTC](https://discourse.paraview.org/t/custom-filter-to-copy-paste-repetive-pipeline-operation/4556 "2026-07-27T11:39:48Z")

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Hi, I am using the information from this link (https://www.paraview.org/Wiki/ParaView/Custom\_Filters) to generate a custom filter for a pipeline section containing a Y-normal slice, a clip filter and glyph - let’s call …

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## [Running a python script as headless without pvpython/pvbatch](https://discourse.paraview.org/t/running-a-python-script-as-headless-without-pvpython-pvbatch/17665)

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**Author:** [@Rowan\_Wiles](https://discourse.paraview.org/u/Rowan_Wiles)\
**Replies:** 3\
**Last updated:** [July 23, 2026, 8:40pm UTC](https://discourse.paraview.org/t/running-a-python-script-as-headless-without-pvpython-pvbatch/17665 "2026-07-23T20:40:18Z")

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I’m working on a Paraview project that runs as a Python script. It’s crashing when I try using it in a CAVE and I believe it’s because of the VTK Render window it’s opening whenever it runs. I want to stop this window fr…

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## [Advanced post-processing externally for volume rendering data](https://discourse.paraview.org/t/advanced-post-processing-externally-for-volume-rendering-data/5392)

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**Author:** [@Partth\_Laad](https://discourse.paraview.org/u/Partth_Laad)\
**Replies:** 4\
**Last updated:** [July 22, 2026, 3:23pm UTC](https://discourse.paraview.org/t/advanced-post-processing-externally-for-volume-rendering-data/5392 "2026-07-22T15:23:44Z")

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Hi all, I had a question regarding post-processing of volume rendering data and its export to other other utilities. While I find ParaView to provide great post-processing, the added surface/texture improvement is neces…

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## [Python to find an extent](https://discourse.paraview.org/t/python-to-find-an-extent/17653)

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**Author:** [@wascott](https://discourse.paraview.org/u/wascott)\
**Replies:** 5\
**Last updated:** [July 21, 2026, 9:31pm UTC](https://discourse.paraview.org/t/python-to-find-an-extent/17653 "2026-07-21T21:31:05Z")

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Hi guys, What is the python to find information in the information tab? My user is specifically looking for the extents or bounds. Thanks, Alan

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## [paraview.simple.reader to VTK object?](https://discourse.paraview.org/t/paraview-simple-reader-to-vtk-object/3496)

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**Author:** [@whophil](https://discourse.paraview.org/u/whophil)\
**Replies:** 3\
**Last updated:** [July 15, 2026, 3:23pm UTC](https://discourse.paraview.org/t/paraview-simple-reader-to-vtk-object/3496 "2026-07-15T15:23:58Z")

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I am reading a binary TecPlot file in Python. I tried to use vtk.vtkTecplotReader, but this crashes. Instead, I have shifted my approach to use paraview.simple.VisItTecplotBinaryReader. Ultimately I would like to use VT…

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## [Is it possible to show on the legend the true minimum and maximum?](https://discourse.paraview.org/t/is-it-possible-to-show-on-the-legend-the-true-minimum-and-maximum/17659)

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**Author:** [@PetrKryslUCSD](https://discourse.paraview.org/u/PetrKryslUCSD)\
**Replies:** 1\
**Last updated:** [July 14, 2026, 4:03pm UTC](https://discourse.paraview.org/t/is-it-possible-to-show-on-the-legend-the-true-minimum-and-maximum/17659 "2026-07-14T16:03:50Z")

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I’d like to set the minimum and maximum, in which case the legend currently shows the chosen minimum and maximum, not the true minimum and maximum of the scalar field. Edit: I happened to find “Draw data range labels”. …

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## [How to calculate the flow rate](https://discourse.paraview.org/t/how-to-calculate-the-flow-rate/806)

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**Author:** [@Eliss](https://discourse.paraview.org/u/Eliss)\
**Replies:** 18\
**Last updated:** [July 10, 2026, 8:31am UTC](https://discourse.paraview.org/t/how-to-calculate-the-flow-rate/806 "2026-07-10T08:31:19Z")

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Good afternoon, I think this is a typical problem but I want to know how I could measure the flow rate of my simulation. I was looking for information but I only found that: Integrate value filter for the inlet surface…

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## [How to find the view in which a source is rendered, and vice versa](https://discourse.paraview.org/t/how-to-find-the-view-in-which-a-source-is-rendered-and-vice-versa/17642)

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**Author:** [@CsatiZoltan](https://discourse.paraview.org/u/CsatiZoltan)\
**Replies:** 4\
**Last updated:** [July 7, 2026, 1:36pm UTC](https://discourse.paraview.org/t/how-to-find-the-view-in-which-a-source-is-rendered-and-vice-versa/17642 "2026-07-07T13:36:51Z")

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In the ParaView GUI, a source in the pipeline browser and its representation in a view are linked, shown by the eye icon. How can I find using Python scripting the source for a given view proxy object, and the view prox…

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## [Writing Custom View for reuse of python plots](https://discourse.paraview.org/t/writing-custom-view-for-reuse-of-python-plots/14845)

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**Author:** [@sherin.sugathan](https://discourse.paraview.org/u/sherin.sugathan)\
**Replies:** 1\
**Last updated:** [July 7, 2026, 9:08am UTC](https://discourse.paraview.org/t/writing-custom-view-for-reuse-of-python-plots/14845 "2026-07-07T09:08:07Z")

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Hi! I really like the existing ParaView’s views such as RenderView, LineChartView, HistogramView etc. They are really good in 2D and 3D plotting offering good performance. However, some visualizations in popular Python …

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## [Resample with dataset when data is contained in main axis planes](https://discourse.paraview.org/t/resample-with-dataset-when-data-is-contained-in-main-axis-planes/17650)

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**Author:** [@Captain\_Convergence](https://discourse.paraview.org/u/Captain_Convergence)\
**Replies:** 1\
**Last updated:** [July 7, 2026, 8:58am UTC](https://discourse.paraview.org/t/resample-with-dataset-when-data-is-contained-in-main-axis-planes/17650 "2026-07-07T08:58:10Z")

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Dear support, I am trying to interpolate a point cloud contained in the ZX axis (so the bounding box of the dataset is zero in the Y direction with Delta Y = 0) into a much more dense mesh using the snap to closest cell…

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## [Saving data from CfdOF FreeCAD add-on in a usable manner](https://discourse.paraview.org/t/saving-data-from-cfdof-freecad-add-on-in-a-usable-manner/17649)

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**Author:** [@mpals](https://discourse.paraview.org/u/mpals)\
**Replies:** 2\
**Last updated:** [July 7, 2026, 1:00am UTC](https://discourse.paraview.org/t/saving-data-from-cfdof-freecad-add-on-in-a-usable-manner/17649 "2026-07-07T01:00:41Z")

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Hello, I’m having an issue with saving data created with the CfdOF add-on in FreeCAD. After my simulation finishes, I can open the data in ParaView just fine. However, I have been unable to save it in such a way that I …

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## [create physical groups for gmsh export](https://discourse.paraview.org/t/create-physical-groups-for-gmsh-export/17614)

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**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 5\
**Last updated:** [July 6, 2026, 5:36pm UTC](https://discourse.paraview.org/t/create-physical-groups-for-gmsh-export/17614 "2026-07-06T17:36:59Z")

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Hello, I have a 3D volumetric mesh inside paraview, I would like to create the ‘physical groups’ of define the ‘boundaries groups’ to use it in a simulation. currently the mesh is only composed of hexahedrals. the physi…

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## [Unexpected behavior of MaxStepDistance in TemporalParticlesToPathlines](https://discourse.paraview.org/t/unexpected-behavior-of-maxstepdistance-in-temporalparticlestopathlines/17643)

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**Author:** [@anahitanaj](https://discourse.paraview.org/u/anahitanaj)\
**Replies:** 1\
**Last updated:** [July 6, 2026, 4:08pm UTC](https://discourse.paraview.org/t/unexpected-behavior-of-maxstepdistance-in-temporalparticlestopathlines/17643 "2026-07-06T16:08:54Z")

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Hi everyone, I am using ParticleTracer followed by TemporalParticlesToPathlines in ParaView 6.0 to visualize the pathlines in the blood vessels of the body using 4D flow MRI data. I use: ForceReinjectionEveryNSteps = …

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## [List of ANARI renderers in ParaView 6.1.1](https://discourse.paraview.org/t/list-of-anari-renderers-in-paraview-6-1-1/17641)

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**Author:** [@jmb64](https://discourse.paraview.org/u/jmb64)\
**Replies:** 10\
**Last updated:** [July 3, 2026, 4:25pm UTC](https://discourse.paraview.org/t/list-of-anari-renderers-in-paraview-6-1-1/17641 "2026-07-03T16:25:00Z")

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I have built one version of ParaView 6.1.1 with ANARI support yesterday. (commit eea2fc2dc970dbfac2be500736fdea26c2d9188b) I test a simple Wedge (Unstructured mesh with 27 points and 16 cells). I get this with OSPRay …

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## [How to specify custom solid colors that persist?](https://discourse.paraview.org/t/how-to-specify-custom-solid-colors-that-persist/17644)

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**Author:** [@GregVernon](https://discourse.paraview.org/u/GregVernon)\
**Replies:** 3\
**Last updated:** [July 2, 2026, 4:30pm UTC](https://discourse.paraview.org/t/how-to-specify-custom-solid-colors-that-persist/17644 "2026-07-02T16:30:05Z")

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I find myself constantly adding custom colors to the Pick Solid Color dialog, since it doesn’t seem that these colors persist across sessions. For example: Launch fresh session of ParaView 6.1.0 (make sure it’s the o…

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## [Paraview 5.10.1 automatically crashes with MFIX built-in case](https://discourse.paraview.org/t/paraview-5-10-1-automatically-crashes-with-mfix-built-in-case/17645)

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**Author:** [@ultrayi](https://discourse.paraview.org/u/ultrayi)\
**Replies:** 1\
**Last updated:** [July 2, 2026, 1:55pm UTC](https://discourse.paraview.org/t/paraview-5-10-1-automatically-crashes-with-mfix-built-in-case/17645 "2026-07-02T13:55:53Z")

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ParaView keeps crashing whenever I try to “apply” after open the RES output files generated by the built-in Fluid Bed 2D case in MFIX. OS： Win 10/ Win 11 Thanks a lot. FLUID\_BED\_TFM\_2D.RES (2.1 MB) RES file name: FLU…

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## [Display issues](https://discourse.paraview.org/t/display-issues/17640)

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**Author:** [@cfd\_payne](https://discourse.paraview.org/u/cfd_payne)\
**Replies:** 7\
**Last updated:** [July 1, 2026, 11:52am UTC](https://discourse.paraview.org/t/display-issues/17640 "2026-07-01T11:52:10Z")

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Hello All, In the Extract Block Filter while selecting an extra face (ie..Ground) the display is culing the whole Geom. PV version 5.12

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## [Placing Objects on Terrain - PALM NetCDF Files](https://discourse.paraview.org/t/placing-objects-on-terrain-palm-netcdf-files/17565)

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**Author:** [@anon17936635](https://discourse.paraview.org/u/anon17936635)\
**Replies:** 4\
**Last updated:** [June 29, 2026, 10:41am UTC](https://discourse.paraview.org/t/placing-objects-on-terrain-palm-netcdf-files/17565 "2026-06-29T10:41:26Z")

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Helo together, I tried to visualize PALM NetCDF simulation results (\_3d.000.nc) and a PALM NetCDF static driver (objects in model domain) (\_static.nc) in ParaView. I displayed the static driver using a threshold filter…

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## [Paraview not launching after download](https://discourse.paraview.org/t/paraview-not-launching-after-download/13704)

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**Author:** [@vassilisbak](https://discourse.paraview.org/u/vassilisbak)\
**Replies:** 3\
**Last updated:** [June 25, 2026, 7:03pm UTC](https://discourse.paraview.org/t/paraview-not-launching-after-download/13704 "2026-06-25T19:03:12Z")

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Hello, I have downloaded paraview (tried the5.5.1 exe file and the msi file and the zip file) for windows 10. Every time I run the installer, the install finishes but paraview doesnt open, nor can i find any .exe file th…

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## [Chart Background Colour](https://discourse.paraview.org/t/chart-background-colour/369)

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**Author:** [@Roberts](https://discourse.paraview.org/u/Roberts)\
**Replies:** 5\
**Last updated:** [June 25, 2026, 7:33am UTC](https://discourse.paraview.org/t/chart-background-colour/369 "2026-06-25T07:33:40Z")

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Hi, I am a new user to Paraview and I am trying to change the background colour of a chart (plot over line), I can’t seem to find any information on this - is it possible? Thanks

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## [Strange display representation of VTK\_POLYHEDRON cells](https://discourse.paraview.org/t/strange-display-representation-of-vtk-polyhedron-cells/14612)

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**Author:** [@Ieeshka](https://discourse.paraview.org/u/Ieeshka)\
**Replies:** 4\
**Last updated:** [June 24, 2026, 2:47pm UTC](https://discourse.paraview.org/t/strange-display-representation-of-vtk-polyhedron-cells/14612 "2026-06-24T14:47:28Z")

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Hello everybody! I am a newbie in ParaView and I would appreciate some explanation of the cell visualization problem I observe (VTK\_POLYHEDRON). I have generated VTU file with 3D mesh of polyhedrons using my own python …

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## [VTKHDF SplitByComposite](https://discourse.paraview.org/t/vtkhdf-splitbycomposite/17633)

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**Author:** [@jfavre](https://discourse.paraview.org/u/jfavre)\
**Replies:** 4\
**Last updated:** [June 24, 2026, 8:06am UTC](https://discourse.paraview.org/t/vtkhdf-splitbycomposite/17633 "2026-06-24T08:06:10Z")

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I have multiple vtkUnstructuredGrids which have been grouped with GroupDatasets() Attempting to save them in VTKHDF format, I use SaveData(‘/foo.vtkhdf’, proxy=groupDatasets1, WriteAllTimeSteps=1, SplitByComposite=1) …

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## [paraview 6.0.1 boken since yesterday update of system?](https://discourse.paraview.org/t/paraview-6-0-1-boken-since-yesterday-update-of-system/17632)

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**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 6\
**Last updated:** [June 23, 2026, 8:38am UTC](https://discourse.paraview.org/t/paraview-6-0-1-boken-since-yesterday-update-of-system/17632 "2026-06-23T08:38:52Z")

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Hello, I had been using paraview 6.0.1 since its release on my system and it always worked, yesterday I did the classic update & upgrade of the system, and today when opening paraview i get an error and can not open at …

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