OpenGL max version

Graphics / Linux Linux
1

Hi,
I need to use a software with OpenGL 3.2, using the command :
MESA_GL_VERSION_OVERRIDE=3.2 {command_to_launch_program}

I wanted to check the compatibility before launching this. I got the following result :
$ glxinfo | grep 'version' server glx version string: 1.4 client glx version string: 1.4 GLX version: 1.4 Max core profile version: 4.3 Max compat profile version: 3.1 Max GLES1 profile version: 1.1 Max GLES[23] profile version: 3.1 OpenGL core profile version string: 4.3 (Core Profile) Mesa 20.3.5 OpenGL core profile shading language version string: 4.30 OpenGL version string: 3.1 Mesa 20.3.5 OpenGL shading language version string: 1.40 OpenGL ES profile version string: OpenGL ES 3.1 Mesa 20.3.5 OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10 GL_EXT_separate_shader_objects, GL_EXT_shader_implicit_conversions,
I have a few questions :

  • What is the difference between « Max core Profile » and « Max compatible profile » ?
  • Why is my GLX version 1.4 whereas it seems it can go up to 3.1 easily ?
  • What is the risk of launching the software, forcing OpenGL 3.2, knowing that the max compat profile is 3.1 and the max core profile is 4.3 ?
  • How can I make the max compat profile improve to 3.2 or more ?

Thanks for your help,
Have a nice day,
Mathieu.

2

GLX : opengl + x11
opengl : opengl for desktop api

3

i am using vtk9.3 + pcl 1.13 + qt quick, vtk9.3 need opengl version >= 3.2 , opengl 3.1 version is too low, how can i upgrade opengl version ?
my env:
jetson orin nx or jetson xavier nx
jetpack 3.5.1

dv@dv-desktop:/opt/dv_app$ glxinfo | grep version
server glx version string: 1.4
client glx version string: 1.4
GLX version: 1.4
Max core profile version: 4.5
Max compat profile version: 3.1
Max GLES1 profile version: 1.1
Max GLES[23] profile version: 3.2
OpenGL version string: 3.1 Mesa 21.2.6
OpenGL shading language version string: 1.40