# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?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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## [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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## [Read 3D TIFF files as voxel-centered](https://discourse.paraview.org/t/read-3d-tiff-files-as-voxel-centered/17337)

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**Author:** [@usiu5555](https://discourse.paraview.org/u/usiu5555)\
**Replies:** 4\
**Last updated:** [December 1, 2025, 4:25pm UTC](https://discourse.paraview.org/t/read-3d-tiff-files-as-voxel-centered/17337 "2025-12-01T16:25:13Z")

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When reading a tiff stack, Paraview reads it as point data and the voxel values are interpolated based on vertices’ values. When reading categorical data, such convention leads to visual artifacts. Is it possible to read…

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## [slice along polyline crashes](https://discourse.paraview.org/t/slice-along-polyline-crashes/16874)

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**Author:** [@Davie](https://discourse.paraview.org/u/Davie)\
**Replies:** 5\
**Last updated:** [December 1, 2025, 1:36pm UTC](https://discourse.paraview.org/t/slice-along-polyline-crashes/16874 "2025-12-01T13:36:06Z")

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HI, Here is a rookie to Paraview. I use “sources–geometic shape–poly line source” to get a polyline in my VTK flie surface, the I use the filter ‘Slice Along Polyline’, but Paraview crashes without any message, my pa…

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## [Visualize Principal Axes of .VTU solid mesh](https://discourse.paraview.org/t/visualize-principal-axes-of-vtu-solid-mesh/17332)

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**Author:** [@Yelena\_Luap](https://discourse.paraview.org/u/Yelena_Luap)\
**Replies:** 9\
**Last updated:** [November 30, 2025, 2:07am UTC](https://discourse.paraview.org/t/visualize-principal-axes-of-vtu-solid-mesh/17332 "2025-11-30T02:07:12Z")

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I’m loading a .vtu file of a vertebra mesh in Paraview. In my python script, i’m computing the center of mass and the principal axes of that mesh. I would like to visualize the Center of Mass as a sphere and the three pr…

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