# Top

**URL:** https://discourse.paraview.org/top.md?page=16&period=all

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

**Page:** 17

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## [Array dispatch issues](https://discourse.paraview.org/t/array-dispatch-issues/10328)

<div class="topic-metadata">

**Author:** [@Andy\_Bauer](https://discourse.paraview.org/u/Andy_Bauer)\
**Replies:** 17\
**Last updated:** [October 30, 2022, 3:46pm UTC](https://discourse.paraview.org/t/array-dispatch-issues/10328 "2022-10-30T15:46:09Z")

</div>

It looks like the array dispatch for SOA arrays with number of components\>1 isn’t working. I’ve built ParaView with VTK\_DISPATCH\_SOA\_ARRAYS enabled (I also tried to build with VTK\_DISPATCH\_TYPED\_ARRAYS enabled but had bu…

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## [Debug Statements in Paraview](https://discourse.paraview.org/t/debug-statements-in-paraview/12006)

<div class="topic-metadata">

**Author:** [@Muhammad\_Saad\_Atique](https://discourse.paraview.org/u/Muhammad_Saad_Atique)\
**Replies:** 9\
**Last updated:** [May 4, 2023, 1:26am UTC](https://discourse.paraview.org/t/debug-statements-in-paraview/12006 "2023-05-04T01:26:26Z")

</div>

Hi, I am creating my own Filter, so I was wondering if there is a way to print Debug statements in between c++ code? So that when I load the plugin and apply my filter I can see those print statements?

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## [Problems with launcher.py](https://discourse.paraview.org/t/problems-with-launcher-py/12440)

<div class="topic-metadata">

**Author:** [@sebasgut1](https://discourse.paraview.org/u/sebasgut1)\
**Replies:** 13\
**Last updated:** [September 14, 2023, 7:00am UTC](https://discourse.paraview.org/t/problems-with-launcher-py/12440 "2023-09-14T07:00:38Z")

</div>

Hello, I was trying to follow this setup guide for Multi-users in ParaViewWeb, but instead of using Apache I am using VTK.js in an Angular application. I am using ParaView 5.10.1 and the path to launcher.py is C:\\Progra…

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## [6.1: how to get rid of the dark theme?](https://discourse.paraview.org/t/6-1-how-to-get-rid-of-the-dark-theme/17280)

<div class="topic-metadata">

**Author:** [@PetrKryslUCSD](https://discourse.paraview.org/u/PetrKryslUCSD)\
**Replies:** 16\
**Last updated:** [April 13, 2026, 8:45am UTC](https://discourse.paraview.org/t/6-1-how-to-get-rid-of-the-dark-theme/17280 "2026-04-13T08:45:53Z")

</div>

I don’t see any controls in the settings. The dark theme is really hard to read – it is too dark. On Windows 11.

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## [Load State Error with Transform Filter](https://discourse.paraview.org/t/load-state-error-with-transform-filter/8597)

<div class="topic-metadata">

**Author:** [@nurw](https://discourse.paraview.org/u/nurw)\
**Replies:** 10\
**Last updated:** [December 9, 2021, 2:37pm UTC](https://discourse.paraview.org/t/load-state-error-with-transform-filter/8597 "2021-12-09T14:37:47Z")

</div>

Hello, Does anyone know if the save/load state works fine when the state pipeline includes a Transform filter? I consistently received errors while loading a state that incudes the Transform filter. When I did not inclu…

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## [pvpython how to run startup script](https://discourse.paraview.org/t/pvpython-how-to-run-startup-script/6970)

<div class="topic-metadata">

**Author:** [@wascott](https://discourse.paraview.org/u/wascott)\
**Replies:** 9\
**Last updated:** [April 30, 2021, 9:20pm UTC](https://discourse.paraview.org/t/pvpython-how-to-run-startup-script/6970 "2021-04-30T21:20:55Z")

</div>

When I run pvpython, it does not initialize with the famous "from paraview.simple import \* ". Is there a way to execute a series of commands when we start up pvpython? Examples are above, or setting a “Reverse Connecti…

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## [Use output of filter for input of other filters](https://discourse.paraview.org/t/use-output-of-filter-for-input-of-other-filters/12834)

<div class="topic-metadata">

**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 19\
**Last updated:** [May 17, 2024, 8:37am UTC](https://discourse.paraview.org/t/use-output-of-filter-for-input-of-other-filters/12834 "2024-05-17T08:37:10Z")

</div>

Hello, I have been looking around the forum in similar questions but I can not finish of getting it. lets say I want to get all the data of a filter that is shown if I show it in a spreadsheet, as a list of arrays, ins…

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## [Fail to load files in a group](https://discourse.paraview.org/t/fail-to-load-files-in-a-group/15861)

<div class="topic-metadata">

**Author:** [@mingwang](https://discourse.paraview.org/u/mingwang)\
**Replies:** 17\
**Last updated:** [November 9, 2025, 8:34pm UTC](https://discourse.paraview.org/t/fail-to-load-files-in-a-group/15861 "2025-11-09T20:34:59Z")

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I am trying to load a temporal series of files as a group. While these files appear grouped in the Open File dialog (the first image below), after clicking OK to load them, they are displayed separately in the Pipeline B…

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## [Can't build paraview on linux](https://discourse.paraview.org/t/cant-build-paraview-on-linux/8565)

<div class="topic-metadata">

**Author:** [@Alexander](https://discourse.paraview.org/u/Alexander)\
**Replies:** 9\
**Last updated:** [December 8, 2021, 10:45pm UTC](https://discourse.paraview.org/t/cant-build-paraview-on-linux/8565 "2021-12-08T22:45:42Z")

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Hello, i’m installing paraview v 5.10-RC2 from source on scientific linux. Cmake is done, but when I make i have the following output: In file included from /home/lib/ParaView-v5.10.0-RC2/VTK/Filters/ParallelDIY2/vtkPro…

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## [ParticleTracking reinjection and general enquiry](https://discourse.paraview.org/t/particletracking-reinjection-and-general-enquiry/10612)

<div class="topic-metadata">

**Author:** [@Ouxid](https://discourse.paraview.org/u/Ouxid)\
**Replies:** 15\
**Last updated:** [November 14, 2022, 3:43am UTC](https://discourse.paraview.org/t/particletracking-reinjection-and-general-enquiry/10612 "2022-11-14T03:43:40Z")

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Hello, I am a full beginner at Paraview, and I just started to play with python for automating tasks (insertion of particle tracers in my domain). The issue I currently have is that, the Force Reinjection Every Nth Ste…

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## [Representations with PV5.8](https://discourse.paraview.org/t/representations-with-pv5-8/3853)

<div class="topic-metadata">

**Author:** [@cobo](https://discourse.paraview.org/u/cobo)\
**Replies:** 9\
**Last updated:** [March 23, 2020, 10:07am UTC](https://discourse.paraview.org/t/representations-with-pv5-8/3853 "2020-03-23T10:07:56Z")

</div>

It looks like in the field of representations there are some changes/improvements with PV5.8 (https://kitware.github.io/paraview-docs/v5.8.0/cxx/MajorAPIChanges.html), and indeed I have now successfully recompiled all my…

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## [extract surface on a distributed dataset](https://discourse.paraview.org/t/extract-surface-on-a-distributed-dataset/12155)

<div class="topic-metadata">

**Author:** [@Alexandre\_Minot](https://discourse.paraview.org/u/Alexandre_Minot)\
**Replies:** 11\
**Last updated:** [June 2, 2023, 1:35pm UTC](https://discourse.paraview.org/t/extract-surface-on-a-distributed-dataset/12155 "2023-06-02T13:35:58Z")

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Hello, When I use the extract surface on data distributed by mpi, the mpi boundaries get extracted as well. This make sense, but I would like to avoid that. Is there a way to get only the full domain surfaces? Here is …

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## [help/about causes segmentation fault](https://discourse.paraview.org/t/help-about-causes-segmentation-fault/14025)

<div class="topic-metadata">

**Author:** [@gpuligundla](https://discourse.paraview.org/u/gpuligundla)\
**Replies:** 15\
**Last updated:** [March 1, 2024, 2:48pm UTC](https://discourse.paraview.org/t/help-about-causes-segmentation-fault/14025 "2024-03-01T14:48:29Z")

</div>

currently, I’m running the latest 5.12.0 in client/server setup. After connecting the client to the server. if I click help/about to see details, it abruptly closes the session and in the server, it says segmentation fau…

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## [How to reset coordinates in Paraview](https://discourse.paraview.org/t/how-to-reset-coordinates-in-paraview/12072)

<div class="topic-metadata">

**Author:** [@ShenY](https://discourse.paraview.org/u/ShenY)\
**Replies:** 14\
**Last updated:** [May 15, 2023, 11:08am UTC](https://discourse.paraview.org/t/how-to-reset-coordinates-in-paraview/12072 "2023-05-15T11:08:51Z")

</div>

Paraview 5.8.0 I set the display of axes grid in my case, but the output result is not very satisfactory. I want to reset the coordinates to the boundary intersection point. May I ask how I can achieve it? Or what metho…

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## [color not shown correctly](https://discourse.paraview.org/t/color-not-shown-correctly/13136)

<div class="topic-metadata">

**Author:** [@Long](https://discourse.paraview.org/u/Long)\
**Replies:** 10\
**Last updated:** [October 31, 2023, 1:55pm UTC](https://discourse.paraview.org/t/color-not-shown-correctly/13136 "2023-10-31T13:55:58Z")

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Hello, I’m trying to render view my 3D mesh with color from one of the data value (solution\_re, in the pictures below). While the color legend appears to be alright, the mesh’s color is quite not right. Any help about …

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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)

<div class="topic-metadata">

**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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## [cannot render when using the osmesa build](https://discourse.paraview.org/t/cannot-render-when-using-the-osmesa-build/7830)

<div class="topic-metadata">

**Author:** [@pcrepier](https://discourse.paraview.org/u/pcrepier)\
**Replies:** 10\
**Last updated:** [August 24, 2021, 8:09am UTC](https://discourse.paraview.org/t/cannot-render-when-using-the-osmesa-build/7830 "2021-08-24T08:09:25Z")

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Hello everyone, I use a set of scripts to export a standard set of pictures for specific simulation types. The scripts run just fine and produce the expected pictures, which is as intended (so great job on that to devs!…

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## [No SDF file format?](https://discourse.paraview.org/t/no-sdf-file-format/10839)

<div class="topic-metadata">

**Author:** [@DanRR](https://discourse.paraview.org/u/DanRR)\
**Replies:** 10\
**Last updated:** [July 4, 2023, 9:39am UTC](https://discourse.paraview.org/t/no-sdf-file-format/10839 "2023-07-04T09:39:23Z")

</div>

I see probably a 100 of supported formats but no SDF one. Any reason for that? Dead format? MATLAB, Python, IDL support it…

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## [how coprocess render the image for distributed cases](https://discourse.paraview.org/t/how-coprocess-render-the-image-for-distributed-cases/4702)

<div class="topic-metadata">

**Author:** [@zhe](https://discourse.paraview.org/u/zhe)\
**Replies:** 10\
**Last updated:** [June 29, 2020, 1:42pm UTC](https://discourse.paraview.org/t/how-coprocess-render-the-image-for-distributed-cases/4702 "2020-06-29T13:42:24Z")

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Hello, guys: There is a workable example that uses the catalyst to render the data (https://github.com/mdorier/MandelbulbCatalystExample/blob/master/src/Mandelbulb.cpp#L44 ) I could run this example and generates the …

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## [Converting standard stresses to Mises stresses](https://discourse.paraview.org/t/converting-standard-stresses-to-mises-stresses/14040)

<div class="topic-metadata">

**Author:** [@rsl89](https://discourse.paraview.org/u/rsl89)\
**Replies:** 13\
**Last updated:** [March 3, 2024, 11:25pm UTC](https://discourse.paraview.org/t/converting-standard-stresses-to-mises-stresses/14040 "2024-03-03T23:25:02Z")

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Hi all. I load a d3plot file from LS-Dyna into the ParaView program. My task is to remove stresses exceeding 600 MPa (singularities). After loading the file, the first thing I want to do is convert the standard program …

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## [Unknown argument: Support for 64 bit file systems](https://discourse.paraview.org/t/unknown-argument-support-for-64-bit-file-systems/5568)

<div class="topic-metadata">

**Author:** [@Francesc\_Costa](https://discourse.paraview.org/u/Francesc_Costa)\
**Replies:** 9\
**Last updated:** [October 26, 2020, 3:26pm UTC](https://discourse.paraview.org/t/unknown-argument-support-for-64-bit-file-systems/5568 "2020-10-26T15:26:13Z")

</div>

Hello, I am trying to build paraview for Windows (that is because I am getting a version mismatch when I try to connect to my ubuntu server). I am following this tutorial: https://gitlab.kitware.com/paraview/paraview/…

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## [problem in my paraFoam](https://discourse.paraview.org/t/problem-in-my-parafoam/8446)

<div class="topic-metadata">

**Author:** [@samir](https://discourse.paraview.org/u/samir)\
**Replies:** 13\
**Last updated:** [January 6, 2023, 7:39am UTC](https://discourse.paraview.org/t/problem-in-my-parafoam/8446 "2023-01-06T07:39:54Z")

</div>

Hello; I have the same problem as you posted it before “Weird plot over line formatting | ParaView 5.9 on Ubuntu 20.04” regarding paraFoam. I am blocked I can not solve it, please help me solve this problem. I am on UBU…

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## [Slice filter performance in ParaView 5.13](https://discourse.paraview.org/t/slice-filter-performance-in-paraview-5-13/15557)

<div class="topic-metadata">

**Author:** [@Yann](https://discourse.paraview.org/u/Yann)\
**Replies:** 18\
**Last updated:** [February 28, 2025, 8:55pm UTC](https://discourse.paraview.org/t/slice-filter-performance-in-paraview-5-13/15557 "2025-02-28T20:55:45Z")

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Hello all, I’m using ParaView to post-process OpenFOAM simulations. After moving from ParaView 5.11 to 5.13/5.13.1, I noticed a huge drop in performance for the slice filter. Slicing a relatively small dataset (3 mill…

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## [Facing problem in plotting side view or top view of velocity of fluid past through a cylinder](https://discourse.paraview.org/t/facing-problem-in-plotting-side-view-or-top-view-of-velocity-of-fluid-past-through-a-cylinder/12233)

<div class="topic-metadata">

**Author:** [@qaz](https://discourse.paraview.org/u/qaz)\
**Replies:** 17\
**Last updated:** [June 17, 2023, 11:51am UTC](https://discourse.paraview.org/t/facing-problem-in-plotting-side-view-or-top-view-of-velocity-of-fluid-past-through-a-cylinder/12233 "2023-06-17T11:51:38Z")

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Hello everyone I want to plot such a side view plot for velocity. How I can plot it in paraview ? The side of pvd file is more than 4mb. I can’t able to upload it. Help me in plotting this side view or top view.

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## [Querying attribute value within dataset](https://discourse.paraview.org/t/querying-attribute-value-within-dataset/6119)

<div class="topic-metadata">

**Author:** [@nwood99](https://discourse.paraview.org/u/nwood99)\
**Replies:** 9\
**Last updated:** [December 23, 2020, 8:51pm UTC](https://discourse.paraview.org/t/querying-attribute-value-within-dataset/6119 "2020-12-23T20:51:25Z")

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Hello, I am trying to apply a moving slice filter to my dataset. I wish for the slice plane to move back and forth along the y-axis. This movement is somewhat complicated, so I included the desired origin y-coordinate…

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## [How to use PBR rendering ?](https://discourse.paraview.org/t/how-to-use-pbr-rendering/14294)

<div class="topic-metadata">

**Author:** [@OlivierM](https://discourse.paraview.org/u/OlivierM)\
**Replies:** 12\
**Last updated:** [April 3, 2024, 12:23pm UTC](https://discourse.paraview.org/t/how-to-use-pbr-rendering/14294 "2024-04-03T12:23:53Z")

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Hello, i saw your promising PBR but I can’t find the way to make it working ! What I am tested is a stl surface imported in Paraview 5.11.0 on which I try to make the surface looking metallic or carbon fiber or whatever…

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## [Looking for a feature: "invisible" for selection?](https://discourse.paraview.org/t/looking-for-a-feature-invisible-for-selection/1322)

<div class="topic-metadata">

**Author:** [@cobo](https://discourse.paraview.org/u/cobo)\
**Replies:** 9\
**Last updated:** [February 20, 2019, 4:12pm UTC](https://discourse.paraview.org/t/looking-for-a-feature-invisible-for-selection/1322 "2019-02-20T16:12:39Z")

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Not sure if I am just blind or the feature does not exist!? What I mean: You have two graphic “items” in the pipeline which you show in a render view. Now you want to select cells or points in one of the two, but not in…

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## [Default value for PARAVIEW\_RELOCATABLE\_INSTALL](https://discourse.paraview.org/t/default-value-for-paraview-relocatable-install/5888)

<div class="topic-metadata">

**Author:** [@utkarsh.ayachit](https://discourse.paraview.org/u/utkarsh.ayachit)\
**Replies:** 9\
**Last updated:** [December 23, 2020, 12:38pm UTC](https://discourse.paraview.org/t/default-value-for-paraview-relocatable-install/5888 "2020-12-23T12:38:10Z")

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I wonder if PARAVIEW\_RELOCATABLE\_INSTALL should default to OFF. Typically, when one builds ParaView and installs it for building plugins etc., it just seems that the default behavior should be that ParaView finds all its…

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## [Default reader not honored when loading exodus file](https://discourse.paraview.org/t/default-reader-not-honored-when-loading-exodus-file/13387)

<div class="topic-metadata">

**Author:** [@gambka](https://discourse.paraview.org/u/gambka)\
**Replies:** 17\
**Last updated:** [December 21, 2023, 9:09pm UTC](https://discourse.paraview.org/t/default-reader-not-honored-when-loading-exodus-file/13387 "2023-12-21T21:09:20Z")

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OS: MacOS Sonoma (for what it is worth I was seeing this same behavior on Ventura as well) ParaView version: 5.11.2 Obtained ParaView: From the downloads page on the ParaView website. Do you see the problem on latest …

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## [Paraviewweb on ubuntu18.04](https://discourse.paraview.org/t/paraviewweb-on-ubuntu18-04/10255)

<div class="topic-metadata">

**Author:** [@ertyig1](https://discourse.paraview.org/u/ertyig1)\
**Replies:** 10\
**Last updated:** [September 8, 2022, 1:45pm UTC](https://discourse.paraview.org/t/paraviewweb-on-ubuntu18-04/10255 "2022-09-08T13:45:52Z")

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I am trying to install ParaViewWeb with multi-user. Here is my issue : Here is my launcher.json: Here is my apache configuration: Thank you!

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## [.plt File Reading Problems](https://discourse.paraview.org/t/plt-file-reading-problems/14140)

<div class="topic-metadata">

**Author:** [@Ercan](https://discourse.paraview.org/u/Ercan)\
**Replies:** 9\
**Last updated:** [March 16, 2024, 2:15pm UTC](https://discourse.paraview.org/t/plt-file-reading-problems/14140 "2024-03-16T14:15:33Z")

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Hello everybody, I have a fortran code that gives Tecplot outputs, also a grid file with .grd extension. When I try to open these files with Paraview 5.11, I end up getting these errors: 1- "ERROR: In vtkAvtSTMDFileFor…

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## [Write .glance file](https://discourse.paraview.org/t/write-glance-file/6167)

<div class="topic-metadata">

**Author:** [@devngc](https://discourse.paraview.org/u/devngc)\
**Replies:** 9\
**Last updated:** [January 18, 2021, 4:19pm UTC](https://discourse.paraview.org/t/write-glance-file/6167 "2021-01-18T16:19:28Z")

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Is it possible to write a .glance file using Python? In the following image,I see that a scalar is selected in the drop down menu when the file is loaded. I believe this behaviour comes from a saved state in the glance f…

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## [Error on use calculator "Syntax error: expecting a variable name; see position X](https://discourse.paraview.org/t/error-on-use-calculator-syntax-error-expecting-a-variable-name-see-position-x/11747)

<div class="topic-metadata">

**Author:** [@Pauline.C](https://discourse.paraview.org/u/Pauline.C)\
**Replies:** 15\
**Last updated:** [March 29, 2023, 1:58pm UTC](https://discourse.paraview.org/t/error-on-use-calculator-syntax-error-expecting-a-variable-name-see-position-x/11747 "2023-03-29T13:58:55Z")

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Hello everyone, I have a problem with the calculator, although I put the “” in my text. Is it a problem with the values? The field 7 has the interval \[3;11\], can I change the intervals in the calculator? Thank you…

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## [Paraview.exe has stopped working (version 5.0.1)](https://discourse.paraview.org/t/paraview-exe-has-stopped-working-version-5-0-1/10052)

<div class="topic-metadata">

**Author:** [@AllenW94](https://discourse.paraview.org/u/AllenW94)\
**Replies:** 9\
**Last updated:** [August 1, 2022, 7:55pm UTC](https://discourse.paraview.org/t/paraview-exe-has-stopped-working-version-5-0-1/10052 "2022-08-01T19:55:10Z")

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Hi, I installed my Paraview via ParaView-5.0.1-Qt4-OpenGL2-Windows-64bit and when I tried to open it, I receive a “Paraview.exe has stopped working” error. I am not sure what is the issue and would be grateful for any ad…

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## [Combine stress data from same mesh](https://discourse.paraview.org/t/combine-stress-data-from-same-mesh/9966)

<div class="topic-metadata">

**Author:** [@Prierap](https://discourse.paraview.org/u/Prierap)\
**Replies:** 10\
**Last updated:** [July 3, 2022, 1:12am UTC](https://discourse.paraview.org/t/combine-stress-data-from-same-mesh/9966 "2022-07-03T01:12:31Z")

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Hi there, I am quite new to Paraview, so go easy on me! :smile: I have two d3plot files from LS-DYNA corresponding to the same mesh but with different material parameters. What I want to do is combine the stresses of b…

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## [Gitlab graphic glitch](https://discourse.paraview.org/t/gitlab-graphic-glitch/2563)

<div class="topic-metadata">

**Author:** [@mwestphal](https://discourse.paraview.org/u/mwestphal)\
**Replies:** 12\
**Last updated:** [February 13, 2020, 4:24am UTC](https://discourse.paraview.org/t/gitlab-graphic-glitch/2563 "2020-02-13T04:24:27Z")

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I currently see a small glitch in gitlab : Open any discussion in Gitlab Hover the “add smiley” button Glitch

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## [\[Catalyst V2\] Support for AMR data](https://discourse.paraview.org/t/catalyst-v2-support-for-amr-data/8352)

<div class="topic-metadata">

**Author:** [@mirenradia](https://discourse.paraview.org/u/mirenradia)\
**Replies:** 9\
**Last updated:** [April 14, 2022, 9:08am UTC](https://discourse.paraview.org/t/catalyst-v2-support-for-amr-data/8352 "2022-04-14T09:08:43Z")

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Hello, I have recently taken over maintaining and updating an old ParaView (V1) Catalyst implementation for a code that uses the Chombo libraries for \[Berger-Oliger style\] Adaptive Mesh Refinement (Chombo - Software for …

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## [Bad display for large dataset](https://discourse.paraview.org/t/bad-display-for-large-dataset/7562)

<div class="topic-metadata">

**Author:** [@tbridel](https://discourse.paraview.org/u/tbridel)\
**Replies:** 15\
**Last updated:** [July 7, 2021, 3:37pm UTC](https://discourse.paraview.org/t/bad-display-for-large-dataset/7562 "2021-07-07T15:37:28Z")

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Hi everyone, Recently I have been working with this dataset : VTU :: restart\_00000000.vtu - Google Drive HDF5 + XDMF :: restart\_00000000.h5 - Google Drive + restart\_00000000.xdmf - Google Drive It’s large but not hug…

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## [Connection failed during handshake](https://discourse.paraview.org/t/connection-failed-during-handshake/10278)

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**Author:** [@garcfd](https://discourse.paraview.org/u/garcfd)\
**Replies:** 14\
**Last updated:** [September 12, 2022, 5:54am UTC](https://discourse.paraview.org/t/connection-failed-during-handshake/10278 "2022-09-12T05:54:09Z")

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I am running pvserver on remote linux machine (paraview v5.8.0) but when I try to connect on the windows PC with same version of paraview Connection failed during handshake I can get 3.98.1 and 4.1.0 to connect, but …

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## [Problems with hdr image as path traced environment](https://discourse.paraview.org/t/problems-with-hdr-image-as-path-traced-environment/7324)

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**Author:** [@benediktB](https://discourse.paraview.org/u/benediktB)\
**Replies:** 9\
**Last updated:** [June 4, 2021, 2:41pm UTC](https://discourse.paraview.org/t/problems-with-hdr-image-as-path-traced-environment/7324 "2021-06-04T14:41:57Z")

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Hi, I am using Paraview 5.9.1. I have an axisymmetric data set, on which I use the rotational extrusion filter. In this filter, I enable the ray-tracing. Until this point everything works. But when I use a HDR image …

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## [ResampleWithDataset and extrapolate to nearby points](https://discourse.paraview.org/t/resamplewithdataset-and-extrapolate-to-nearby-points/14034)

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**Author:** [@simonw](https://discourse.paraview.org/u/simonw)\
**Replies:** 12\
**Last updated:** [July 7, 2025, 9:48am UTC](https://discourse.paraview.org/t/resamplewithdataset-and-extrapolate-to-nearby-points/14034 "2025-07-07T09:48:52Z")

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Dear all, This is the result of interpolating experimental data on a finite element mesh using ResampleWithDataset filter. The missing points along the circle have value zero (blue in the contour above) because thes…

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## [numpy functions in Python Calculator](https://discourse.paraview.org/t/numpy-functions-in-python-calculator/12735)

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**Author:** [@Andy\_Bauer](https://discourse.paraview.org/u/Andy_Bauer)\
**Replies:** 9\
**Last updated:** [August 29, 2023, 6:42pm UTC](https://discourse.paraview.org/t/numpy-functions-in-python-calculator/12735 "2023-08-29T18:42:08Z")

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Hi, I’m using numpy methods in the Python Calculator but I’m getting different behavior depending on whether the input is a vtkDataSet or a vtkCompositeDataSet. The expression I’m trying out is: pythonCalculator2.Expre…

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## [Paraview not showing spline points/point clouds in OSPRAY](https://discourse.paraview.org/t/paraview-not-showing-spline-points-point-clouds-in-ospray/7747)

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**Author:** [@Bushra](https://discourse.paraview.org/u/Bushra)\
**Replies:** 9\
**Last updated:** [August 11, 2021, 6:31pm UTC](https://discourse.paraview.org/t/paraview-not-showing-spline-points-point-clouds-in-ospray/7747 "2021-08-11T18:31:55Z")

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Hello! I am trying to use photorealistic rendering via OSPRAY and PBR. After applying textures and materials, when I try to draw streamlines through point cloud, it does not show me any sphere even when show sphere opti…

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## [How to clip the model rightly](https://discourse.paraview.org/t/how-to-clip-the-model-rightly/16554)

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**Author:** [@JIERSHAO](https://discourse.paraview.org/u/JIERSHAO)\
**Replies:** 23\
**Last updated:** [May 30, 2025, 4:45am UTC](https://discourse.paraview.org/t/how-to-clip-the-model-rightly/16554 "2025-05-30T04:45:12Z")

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Hi everyone! I want clip a model by Paraview Tools, here is Paraview 5.13.2. as shown in figure below, I want to keep the model outside the box rather than inside. What do I need to do to achieve the desired effe…

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## [Extract mesh surfaces from .STL files](https://discourse.paraview.org/t/extract-mesh-surfaces-from-stl-files/15882)

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**Author:** [@Il\_Briga](https://discourse.paraview.org/u/Il_Briga)\
**Replies:** 19\
**Last updated:** [January 16, 2025, 12:51pm UTC](https://discourse.paraview.org/t/extract-mesh-surfaces-from-stl-files/15882 "2025-01-16T12:51:44Z")

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Hi there! Very silly problem here. But unfortunately i haven’t founded any solutions yet. I aim to estimate the flow rate at some 2D-surfaces internal to my mesh (i.e no boundaries or inlet-outlet patch), using the filt…

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## [clean ram memory after deleting source filter](https://discourse.paraview.org/t/clean-ram-memory-after-deleting-source-filter/17318)

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**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 21\
**Last updated:** [November 26, 2025, 12:35pm UTC](https://discourse.paraview.org/t/clean-ram-memory-after-deleting-source-filter/17318 "2025-11-26T12:35:25Z")

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Hello, I am creating and deleting several filters and I thought I notice ‘memory leakage’ in paraview when creating a filter, and then deleting it. but now I am for sure experiencing it, my ram is enought to open one ti…

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## [Catalyst V2 API spacing not being passed properly for vtkImageData](https://discourse.paraview.org/t/catalyst-v2-api-spacing-not-being-passed-properly-for-vtkimagedata/5960)

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**Author:** [@Andy\_Bauer](https://discourse.paraview.org/u/Andy_Bauer)\
**Replies:** 11\
**Last updated:** [December 3, 2020, 2:45pm UTC](https://discourse.paraview.org/t/catalyst-v2-api-spacing-not-being-passed-properly-for-vtkimagedata/5960 "2020-12-03T14:45:10Z")

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It looks like the spacing parameter isn’t being passed through the new Catalyst v2 API to construct vtkImageData. For the Catalyst2 CxxImageDataExample the spacing should be: double spacing\[3\] = { 1, 1.1, 1.3 }; but …

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## [Denoiser for OptiX pathtracer not working](https://discourse.paraview.org/t/denoiser-for-optix-pathtracer-not-working/9963)

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**Author:** [@LeeAlacoque](https://discourse.paraview.org/u/LeeAlacoque)\
**Replies:** 10\
**Last updated:** [August 8, 2022, 2:29am UTC](https://discourse.paraview.org/t/denoiser-for-optix-pathtracer-not-working/9963 "2022-08-08T02:29:20Z")

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I have an issue where the denoiser option doesn’t do anything when I’m using the OptiX pathtracer. Turning it on doesn’t seem to change anything and leaves all the noise in the image, no matter how many rays per pixel I …

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## [Data extraction form vtk file](https://discourse.paraview.org/t/data-extraction-form-vtk-file/13037)

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**Author:** [@Chhotelal](https://discourse.paraview.org/u/Chhotelal)\
**Replies:** 14\
**Last updated:** [March 15, 2024, 1:12pm UTC](https://discourse.paraview.org/t/data-extraction-form-vtk-file/13037 "2024-03-15T13:12:24Z")

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Dear Expert, I load the VTK or vtu file total time of 5 sec (time step is 0.1s) and I want to create a single dataset file that includes X coordinate, Y coordinate, Time, and other variables which is defined in the VTK …

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## [Paraview benchmarks without display](https://discourse.paraview.org/t/paraview-benchmarks-without-display/14216)

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**Author:** [@brandonbiggs](https://discourse.paraview.org/u/brandonbiggs)\
**Replies:** 15\
**Last updated:** [March 25, 2024, 4:59pm UTC](https://discourse.paraview.org/t/paraview-benchmarks-without-display/14216 "2024-03-25T16:59:27Z")

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Hi all, I’m trying to run the Paraview benchmarks on a Rocky Linux 8 server that has Nvidia GPUs. They run great if I have a display set, but crash if I don’t. This makes sense as a display appears with some rendering i…

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