# ParaView Support

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

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

**Page:** 8

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## [mpiexec for version 6.0.1 (MPI enabled)](https://discourse.paraview.org/t/mpiexec-for-version-6-0-1-mpi-enabled/17269)

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**Author:** [@hamed](https://discourse.paraview.org/u/hamed)\
**Replies:** 13\
**Last updated:** [October 29, 2025, 9:58am UTC](https://discourse.paraview.org/t/mpiexec-for-version-6-0-1-mpi-enabled/17269 "2025-10-29T09:58:45Z")

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Hello Paraview community, recently I upgraded to v 6.0.1 and I noticed that calling pvserver by mpiexec prompts n times connection waiting messages. $ mpiexec -n 3 pvserver WRN - The configuration file has not been fo…

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## [how to load background image (without the colours changing)](https://discourse.paraview.org/t/how-to-load-background-image-without-the-colours-changing/17358)

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**Author:** [@garcfd](https://discourse.paraview.org/u/garcfd)\
**Replies:** 3\
**Last updated:** [December 16, 2025, 10:44am UTC](https://discourse.paraview.org/t/how-to-load-background-image-without-the-colours-changing/17358 "2025-12-16T10:44:51Z")

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Im loading an image into the background, but the image colours are getting changed by the legend colourmap. I just want to create an orbit of my geometry with contours of velocity on the surface, but with a nice backgrou…

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## [Errors in resampling unstructured data set to structured grids using .vtu files](https://discourse.paraview.org/t/errors-in-resampling-unstructured-data-set-to-structured-grids-using-vtu-files/17364)

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**Author:** [@aadl\_uk](https://discourse.paraview.org/u/aadl_uk)\
**Replies:** 5\
**Last updated:** [December 16, 2025, 9:00am UTC](https://discourse.paraview.org/t/errors-in-resampling-unstructured-data-set-to-structured-grids-using-vtu-files/17364 "2025-12-16T09:00:27Z")

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Hello, I am using Paraview to post-process unstructured CFD data from PyFR. I would like to map the solution in an unstructured mesh (.vtu) onto another unstructured grid (.cgns) using the ResampleWithDataset filter. A…

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## [Stream Tracer movie](https://discourse.paraview.org/t/stream-tracer-movie/2115)

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**Author:** [@vanis](https://discourse.paraview.org/u/vanis)\
**Replies:** 37\
**Last updated:** [December 15, 2025, 9:51am UTC](https://discourse.paraview.org/t/stream-tracer-movie/2115 "2025-12-15T09:51:56Z")

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Hi, guys! I’ve got a problem. I have to do movie of several fixed stream lines evolution. I have 100 3D arrays with velocity vector field, what correspond to 100 time steps in modilling the fluid. So, I used stream tra…

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## [Integration model in LPT](https://discourse.paraview.org/t/integration-model-in-lpt/17377)

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**Author:** [@gg22](https://discourse.paraview.org/u/gg22)\
**Replies:** 3\
**Last updated:** [December 15, 2025, 9:25am UTC](https://discourse.paraview.org/t/integration-model-in-lpt/17377 "2025-12-15T09:25:23Z")

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Dear Mathieu, I am using the LPT and managed to make it work eventually, but I don’t know whether the reuslts I am obtaining are correct. Reading this topic that I am quoting below, I see you wrote that without an integr…

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## [Ray-tracing on Apple silicon](https://discourse.paraview.org/t/ray-tracing-on-apple-silicon/17374)

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**Author:** [@AlexandreDaby](https://discourse.paraview.org/u/AlexandreDaby)\
**Replies:** 1\
**Last updated:** [December 15, 2025, 9:13am UTC](https://discourse.paraview.org/t/ray-tracing-on-apple-silicon/17374 "2025-12-15T09:13:10Z")

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Hi everyone, It seems that Paraview’s ray-tracing capabilities on the newer MacBooks only utilise the CPU without leveraging the hardware-accelerated ray-tracing capabilities of the newer chips. Is there a plan to enabl…

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## [Support question](https://discourse.paraview.org/t/support-question/17363)

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**Author:** [@Jumpy\_Cow](https://discourse.paraview.org/u/Jumpy_Cow)\
**Replies:** 12\
**Last updated:** [December 15, 2025, 8:36am UTC](https://discourse.paraview.org/t/support-question/17363 "2025-12-15T08:36:05Z")

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## [why cleantogrid filter so slow?](https://discourse.paraview.org/t/why-cleantogrid-filter-so-slow/17370)

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**Author:** [@garcfd](https://discourse.paraview.org/u/garcfd)\
**Replies:** 0\
**Last updated:** [December 13, 2025, 1:27pm UTC](https://discourse.paraview.org/t/why-cleantogrid-filter-so-slow/17370 "2025-12-13T13:27:50Z")

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I have an octree mesh flow solution which comes from my solver ufocfd (octree) I decided to use use “clean to grid” because it seems the only way to get gradients of density. I noticed that the cleantogrid filter is ve…

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## [Paraview 6.0.1 crashed when applying the "Merge Blocks" filter.](https://discourse.paraview.org/t/paraview-6-0-1-crashed-when-applying-the-merge-blocks-filter/17369)

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**Author:** [@m41m41\_Ann](https://discourse.paraview.org/u/m41m41_Ann)\
**Replies:** 2\
**Last updated:** [December 12, 2025, 3:57pm UTC](https://discourse.paraview.org/t/paraview-6-0-1-crashed-when-applying-the-merge-blocks-filter/17369 "2025-12-12T15:57:15Z")

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Applying the “Merge Blocks” filter to the file causes a crash. Could there be a problem with the data in the test file? Operating steps: Open Paraview, drag and drop this CGNS file into Paraview, apply, add the ‘Merge B…

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## [Wireframe coloring issue: shared boundary between two regions shows mixed colors](https://discourse.paraview.org/t/wireframe-coloring-issue-shared-boundary-between-two-regions-shows-mixed-colors/17362)

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**Author:** [@jialugao](https://discourse.paraview.org/u/jialugao)\
**Replies:** 10\
**Last updated:** [December 12, 2025, 2:45am UTC](https://discourse.paraview.org/t/wireframe-coloring-issue-shared-boundary-between-two-regions-shows-mixed-colors/17362 "2025-12-12T02:45:31Z")

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Hi everyone, When visualizing my mesh in Wireframe mode, I color the mesh using a cell-based tag array (for example, region IDs 15 and 16). However, on the shared boundary between the two regions, the edges appear partl…

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## [Horizontal color bar with vertical tick labels](https://discourse.paraview.org/t/horizontal-color-bar-with-vertical-tick-labels/17356)

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**Author:** [@Sam\_Austin](https://discourse.paraview.org/u/Sam_Austin)\
**Replies:** 7\
**Last updated:** [December 11, 2025, 5:45pm UTC](https://discourse.paraview.org/t/horizontal-color-bar-with-vertical-tick-labels/17356 "2025-12-11T17:45:20Z")

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I am working with a horizontal colorbar. How can I rotate the numbers to run vertically instead of being displayed horizontally like they are currently? They are all smashed into each other. I want to be able to do somet…

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## [Paraview Plot over Line Issue](https://discourse.paraview.org/t/paraview-plot-over-line-issue/17344)

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**Author:** [@saitcan](https://discourse.paraview.org/u/saitcan)\
**Replies:** 6\
**Last updated:** [December 11, 2025, 3:52pm UTC](https://discourse.paraview.org/t/paraview-plot-over-line-issue/17344 "2025-12-11T15:52:44Z")

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Hey, I am using paraview to visualise my .h5 file. From the Cylindirical Geometry -I got a Slice of it -I apply Cell Data to Point Data Filter -I apply “Plot Over Line” Filter on it. Previously I was using Version 5…

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## [Xdmf3ReaderT crashes if xdmf mesh file (plain text) exceeds certain number of elements](https://discourse.paraview.org/t/xdmf3readert-crashes-if-xdmf-mesh-file-plain-text-exceeds-certain-number-of-elements/17333)

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**Author:** [@violettinged](https://discourse.paraview.org/u/violettinged)\
**Replies:** 1\
**Last updated:** [December 11, 2025, 11:33am UTC](https://discourse.paraview.org/t/xdmf3readert-crashes-if-xdmf-mesh-file-plain-text-exceeds-certain-number-of-elements/17333 "2025-12-11T11:33:46Z")

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Description I have a .xdmf mesh file of a simple cube geometry with both the metadata and the definition of tetrahedral elements and node coordinates (heavy data) stored in the same plain text file using XML. Trying to o…

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## [Remove Axis Tick Labels](https://discourse.paraview.org/t/remove-axis-tick-labels/17355)

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**Author:** [@Sam\_Austin](https://discourse.paraview.org/u/Sam_Austin)\
**Replies:** 1\
**Last updated:** [December 11, 2025, 8:38am UTC](https://discourse.paraview.org/t/remove-axis-tick-labels/17355 "2025-12-11T08:38:38Z")

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Fairly straightforward question… how can I remove the numbers from the axes but retain the ticks? In this example, I want to remove the numbers. Things I’ve tried: Making the tick number text white (see above) – do…

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## [Plot3d format](https://discourse.paraview.org/t/plot3d-format/2511)

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**Author:** [@MAGAN\_SINGH](https://discourse.paraview.org/u/MAGAN_SINGH)\
**Replies:** 7\
**Last updated:** [December 11, 2025, 7:59am UTC](https://discourse.paraview.org/t/plot3d-format/2511 "2025-12-11T07:59:17Z")

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I just started data visualization in ParaView5.7.0-RC1. I have two binary output files for flow analysis over the delta wing as a grid file(plot3dg.bin) and solution file(plot3dq.bin)plot3dg.bin (17.3 KB) plot3dq.bin (21…

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## [What do you think about DeepWiki for ParaView?](https://discourse.paraview.org/t/what-do-you-think-about-deepwiki-for-paraview/17359)

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**Author:** [@CsatiZoltan](https://discourse.paraview.org/u/CsatiZoltan)\
**Replies:** 4\
**Last updated:** [December 10, 2025, 4:03pm UTC](https://discourse.paraview.org/t/what-do-you-think-about-deepwiki-for-paraview/17359 "2025-12-10T16:03:29Z")

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Hi, Recently, my web searches frequently recommend DeepWiki for programming topics. I noticed that ParaView is indexed in the wiki. At the bottom of the page, you can type a question. There are two main sections in the …

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## [Fail in applying materials to a paraview object - vtkOSPRayMaterial error](https://discourse.paraview.org/t/fail-in-applying-materials-to-a-paraview-object-vtkospraymaterial-error/16079)

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**Author:** [@aero.py](https://discourse.paraview.org/u/aero.py)\
**Replies:** 3\
**Last updated:** [December 9, 2025, 10:43am UTC](https://discourse.paraview.org/t/fail-in-applying-materials-to-a-paraview-object-vtkospraymaterial-error/16079 "2025-12-09T10:43:23Z")

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Hi, I’m trying to apply material properties to active objects in a paraview session through python. The premise is that if I execute the steps manually I can get the materials correctly in place. If I emulate the python…

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## [installation of paraview-dev version 5.11.2 on WSL ubuntu 22.04](https://discourse.paraview.org/t/installation-of-paraview-dev-version-5-11-2-on-wsl-ubuntu-22-04/17351)

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**Author:** [@nbScal](https://discourse.paraview.org/u/nbScal)\
**Replies:** 6\
**Last updated:** [December 9, 2025, 9:01am UTC](https://discourse.paraview.org/t/installation-of-paraview-dev-version-5-11-2-on-wsl-ubuntu-22-04/17351 "2025-12-09T09:01:02Z")

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Hello, I try to install paraview development in WSL ubuntu 22.04 but I didn’t find anything and recompile it would be very difficult for me. Can someone give some help ?

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## [Clip Filter "Show Plane" not hideable from python script](https://discourse.paraview.org/t/clip-filter-show-plane-not-hideable-from-python-script/17352)

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**Author:** [@Sly\_ld](https://discourse.paraview.org/u/Sly_ld)\
**Replies:** 1\
**Last updated:** [December 8, 2025, 7:40am UTC](https://discourse.paraview.org/t/clip-filter-show-plane-not-hideable-from-python-script/17352 "2025-12-08T07:40:05Z")

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I’m applying a clip filter to a box data for a basic assignment. It’s pretty simple, I do some basic manipulation on the box\_data then I apply the clip filter to it. However, I can’t seem to find a way to hide the plane …

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## [stop pvpython from opening x11 window](https://discourse.paraview.org/t/stop-pvpython-from-opening-x11-window/17349)

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**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 6\
**Last updated:** [December 5, 2025, 4:34pm UTC](https://discourse.paraview.org/t/stop-pvpython-from-opening-x11-window/17349 "2025-12-05T16:34:57Z")

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Hello, I have a small inconvenience, while using pvpython with my script when i use the line: animationScene1.AnimationTime = timeSteps\[-1\] even if i dont have anything displayed, the terminal will open a x11 window, …

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## [pvpython script freezes in Jupyter](https://discourse.paraview.org/t/pvpython-script-freezes-in-jupyter/17350)

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**Author:** [@greg](https://discourse.paraview.org/u/greg)\
**Replies:** 0\
**Last updated:** [December 5, 2025, 2:01pm UTC](https://discourse.paraview.org/t/pvpython-script-freezes-in-jupyter/17350 "2025-12-05T14:01:53Z")

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I am trying to connect from Jupyter to a catalyst in situ simulation, but Jupyter freezes in the moment, when the in situ side connects. ( The aim of this experiment is to show some statistics, no graphics, in Jupyter fr…

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## [Surface LIC visualization](https://discourse.paraview.org/t/surface-lic-visualization/17348)

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**Author:** [@kuhlen](https://discourse.paraview.org/u/kuhlen)\
**Replies:** 2\
**Last updated:** [December 5, 2025, 11:52am UTC](https://discourse.paraview.org/t/surface-lic-visualization/17348 "2025-12-05T11:52:18Z")

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Hello everyone, I’m going through the cavity tutorial in incompressible fluids. When I’m using surface LIC on my object I get this weird little triangle in the corner, where no lines appear. Does anyone know how I could…

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## [Paraview crashing when loading state file](https://discourse.paraview.org/t/paraview-crashing-when-loading-state-file/14837)

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**Author:** [@kieran\_leadbetter](https://discourse.paraview.org/u/kieran_leadbetter)\
**Replies:** 6\
**Last updated:** [December 5, 2025, 9:34am UTC](https://discourse.paraview.org/t/paraview-crashing-when-loading-state-file/14837 "2025-12-05T09:34:42Z")

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Hi, Have been working on some 3D data today when the following error would pop up when loading the state file: ROR: In C:\\glr\\builds\\paraview\\paraview-ci\\build\\superbuild\\paraview\\src\\VTK\\Common\\ExecutionModel\\vtkDeman…

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## [filters not being updated when using pvpython?](https://discourse.paraview.org/t/filters-not-being-updated-when-using-pvpython/17347)

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**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 1\
**Last updated:** [December 4, 2025, 2:53pm UTC](https://discourse.paraview.org/t/filters-not-being-updated-when-using-pvpython/17347 "2025-12-04T14:53:52Z")

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hello, i am having a problem with one of my scripts, i have a pipeline of 4 filters that I am changing inside a loop, I am creating a slice (slice\_0) in the XZ plane, then creating a second slice(slice\_1) in the XY pl…

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## [Paraview crashing when I use lagrangian particle tracker](https://discourse.paraview.org/t/paraview-crashing-when-i-use-lagrangian-particle-tracker/17345)

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**Author:** [@gg22](https://discourse.paraview.org/u/gg22)\
**Replies:** 7\
**Last updated:** [December 4, 2025, 2:30pm UTC](https://discourse.paraview.org/t/paraview-crashing-when-i-use-lagrangian-particle-tracker/17345 "2025-12-04T14:30:01Z")

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Hello everyone, I am studying a plume impingement and visualizing my openFOAM plume results in paraview (only the last time step of my simulation). Since I wanted to calculate particle path according to the flowfield, a…

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## [Paraview extremely slow to load vtk multiblock files with many blocks](https://discourse.paraview.org/t/paraview-extremely-slow-to-load-vtk-multiblock-files-with-many-blocks/16483)

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**Author:** [@wilove](https://discourse.paraview.org/u/wilove)\
**Replies:** 9\
**Last updated:** [December 4, 2025, 11:30am UTC](https://discourse.paraview.org/t/paraview-extremely-slow-to-load-vtk-multiblock-files-with-many-blocks/16483 "2025-12-04T11:30:59Z")

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I’m working with a dataset containing 160,000 blocks in ParaView and have experimented with various VTK formats, including VTM, VTPC, and VTKHDF. Running pvserver on multiple cores hasn’t improved performance with any of…

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## ["Render points as spheres" completely messes up the depth / Z-Order of the points](https://discourse.paraview.org/t/render-points-as-spheres-completely-messes-up-the-depth-z-order-of-the-points/17346)

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**Author:** [@Oblomov](https://discourse.paraview.org/u/Oblomov)\
**Replies:** 0\
**Last updated:** [December 4, 2025, 11:12am UTC](https://discourse.paraview.org/t/render-points-as-spheres-completely-messes-up-the-depth-z-order-of-the-points/17346 "2025-12-04T11:12:51Z")

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There seems to be an issue with the “Render points as spheres” option that fails to account for the depth / Z-order of the points (with respect to the camera), resulting in the spheres being rendered in random order, so…

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## [paraview 6.0.1 not saving modified settings](https://discourse.paraview.org/t/paraview-6-0-1-not-saving-modified-settings/17343)

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**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 7\
**Last updated:** [December 4, 2025, 7:14am UTC](https://discourse.paraview.org/t/paraview-6-0-1-not-saving-modified-settings/17343 "2025-12-04T07:14:29Z")

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hello, I am using ParaView-6.0.1-MPI-Linux-Python3.12-x86\_64 in my ubuntu machine, but the settings that i modify are not being restored after i close paraview and open it again. such as camera behavior

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## [No proxy that matches: group=sources and proxy=\*.\* were found.](https://discourse.paraview.org/t/no-proxy-that-matches-group-sources-and-proxy-were-found/17308)

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**Author:** [@deanwormer](https://discourse.paraview.org/u/deanwormer)\
**Replies:** 7\
**Last updated:** [December 3, 2025, 6:40pm UTC](https://discourse.paraview.org/t/no-proxy-that-matches-group-sources-and-proxy-were-found/17308 "2025-12-03T18:40:53Z")

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I’m trying to open an nc file, however I get the following error: ERROR: In vtkSIProxyDefinitionManager.cxx, line 518 vtkSIProxyDefinitionManager (0x60000183c100): No proxy that matches: group=sources and proxy=. were …

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## [iparaview-kernel: paraview build from source or precompiled binaries?](https://discourse.paraview.org/t/iparaview-kernel-paraview-build-from-source-or-precompiled-binaries/17341)

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**Author:** [@Turbinepilot](https://discourse.paraview.org/u/Turbinepilot)\
**Replies:** 1\
**Last updated:** [December 2, 2025, 9:00am UTC](https://discourse.paraview.org/t/iparaview-kernel-paraview-build-from-source-or-precompiled-binaries/17341 "2025-12-02T09:00:47Z")

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Hello all, I am attempting to setup iparaview-kernel for use on Windows. Does the iparaview-kernel (https://gitlab.kitware.com/paraview/plugins/iparaview-kernel) require paraview to be built from source or can I instal…

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