Probe Basic OpenGL requirements don't match the documentation

While installing Probe Basic a while back I noticed that the requirements in the documentation says:

Probe Basic Requires graphics hardware that support OpenGL 1.50 or later

But in fact Probe Basic requires OpenGL 3.2 and OpenGL Shading Language (GLSL) 1.50.

I noticed that more users on this forum had come across the same issue ( link ) so I made an issue about it on the Probe Basic GitHub page:

github.com/kcjengr/probe_basic/issues/113

 

Bummer!

I am using an old Dell Optiplex 980 because of it's low latency even with parport ("OpenGL version string: 2.1 Mesa 22.3.6")

Is the OpenGL requirement specific for Probe Basic or QtPyVCP in general?

I didn't research any further into this but instead switched hardware. However I'd prefer to use the older lower latency hardware if I could.

Pixel shaders usually aren't a must in simple 3D applications so I suspect Probe Basic could be modified to work with lesser OpenGL versions if someone is willing to dig into the code.

this is a VTK requirement, you could remove the backplotter to remove the need for VTK and older hardware will work.  the reason we use VTK is because QT did not support the currently used backplotter from LCNC.  it has had its challenges for sure.

I actually think the VTK backplotter looks great now that I've used it for a while.

However updating the documentation to clarify the requirements for OpenGL 3.2 and OpenGL Shading Language (GLSL) 1.50 is probably a good idea for new users.

thought i had that in the docs here?

kcjengr.github.io/probe_basic/quick_start_apt.html