VTK Backplot on RPi 4

Hi scotta,

i´ve tried to install probe basic on RP4 with your deb file but i still have the

ImportError: No module named qt

error.

Do you know a solution on this issue?

Thanks in advance.

Best regards,

Nic

Does qtpyvcp load the simpler QUI's? Looks like a basic config error and nothing to do with the VTK back plot.

www.qtpyvcp.com/tutorials/basic_vcp/index.html

github.com/jethornton/tkemc

JT

Hi scotta,

thank you for your reply. No, none of the qtpyvcp UI`s work.

Best regards,

Nic

Scotta,

Did you get a change to get VTK 8.2 working?

Also i am trying to build the VTK myself on a 64bit os.
Just having issues getting ccmake to find openGL.

As reported here
github.com/pyvista/pyvista-support/issue...suecomment-848598723
I compiled (in about 9 hours ...) the latest version of the vtk
on a raspberry pi 4 with preempt_rt
Linux raspberrypi 5.15.32-rt39-v8 + # 1 SMP PREEMPT_RT Sat Apr 2 07:28:17 BST 2022 aarch64 GNU / Linux

I then installed the wheel file, downloadable at this link
drive.google.com/file/d/1H4EwSQ5fpor1YZi...fwy/view?usp=sharing

with the command
python3 -m pip install ./vtk-9.1.20220512.dev0-cp39-cp39-linux_aarch64.whl

However, the VTK works, as shown in the figure, only as environmental variable
LIBGL_ALWAYS_SOFTWARE = ​​true
 
The screen also shows the results of the commands 'neofetch' and 'glxinfo -B'

Without the environmental variable, the error message is this:

vtkShaderProgram.cxx: 438 ERR | vtkShaderProgram (0x15e63020): 0: 1 (10): error: GLSL 1.50 is not supported. Supported versions are: 1.10, 1.20, 1.00 ES, and 3.00 ES


Using, as some suggest, the environmental variable
MESA_GL_VERSION_OVERRIDE = 3.2 MESA_GLSL_VERSION_OVERRIDE = 150
the example shown works for a few seconds but then goes into error


in any case it is then possible to install QtVCP, QTpyVCP and Probe_basic
 


Anyone know how to use the V3D 4.2 driver with VTK?