PyVista WRML file output is incorrect with checkers in WSL2 and Ubuntu 22 and correct in PowerShell and Windows 11

[mbalcerzyk]

Hi.
I am getting incorrect PyVista WRML file output with checkers in WSL2 and Ubuntu 22 and correct in PowerShell and Windows 11. I opened a bug in PyVista page, but as it shows up only in WSL2 Ubuntu, it is a border question. The issue is reported with details at
pyvista/pyvista#6974
There was no answer. I checked the same piece of Python and Pyvista code in the same computer but with Python 3.11 for Windows and the rendering is correct. I have graphical subsystem in Ubuntu working fine. One of my friends has the same problem with WSL2 and Pyvista in Ubuntu. The Pyvista properties in WSL2 and Windows from print(pv) are:
In WSL2 the output of print is

---

Date: Fri Dec 13 11:57:55 2024 CET

            OS : Linux (Ubuntu 22.04)
        CPU(s) : 8
       Machine : x86_64
  Architecture : 64bit
   Environment : Python
    GPU Vendor : Microsoft Corporation
  GPU Renderer : D3D12 (Intel(R) Iris(R) Xe Graphics)
   GPU Version : 4.1 (Core Profile) Mesa 23.2.1-1ubuntu3.1~22.04.3

MathText Support : True

Python 3.11.11 (main, Dec 4 2024, 08:55:07) [GCC 11.4.0]

       pyvista : 0.44.1
           vtk : 9.3.1
         numpy : 1.26.4
    matplotlib : 3.10.0rc1
        scooby : 0.10.0
         pooch : 1.8.2
        pillow : 11.0.0
         scipy : 1.14.1
          tqdm : 4.67.0

---

in Windows 11 (24H2) the output is

Date: Fri Dec 13 11:54:26 2024 Romance Standard Time

            OS : Windows (10 10.0.26100 SP0 Multiprocessor Free)
        CPU(s) : 8
       Machine : AMD64
  Architecture : 64bit
           RAM : 7.7 GiB
   Environment : Python
    GPU Vendor : Intel
  GPU Renderer : Intel(R) Iris(R) Xe Graphics
   GPU Version : 4.5.0 - Build 31.0.101.4255

MathText Support : False

Python 3.11.9 (tags/v3.11.9:de54cf5, Apr 2 2024, 10:12:12) [MSC v.1938 64
bit (AMD64)]

       pyvista : 0.44.1
           vtk : 9.3.1
         numpy : 1.26.4
    matplotlib : 3.9.2
        scooby : 0.10.0
         pooch : 1.8.2
        pillow : 10.4.0
         scipy : 1.14.1
          tqdm : 4.66.5

---

As it is a border question, I ask also on WSL2 forum for help. If you try to reproduce the code there, it uses opengate Python library, which is very big and complex. Maybe you can use any WRML 3D file to view it in Windows and WSL2 to compare.

Kind regards
Marcin Balcerzyk