ImGui crashing when using OpenGL context 3.2+ even though GPU and driver support 4.6 #375
Description
I am trying to check something in my OpenGL application (uses the latest versions of PyGame, PyOpenGL and PyImGui packages) with RenderDoc. However, RenderDoc tells me that my app's OpenGL context is not 3.2+.
I checked my specs using glxinfo
OpenGL version string 4.6.0 NVIDIA 535.171.04
leading to the conclusion that anything 3.x should be fine.
I tried setting up the major and minor version for the OpenGL context
pygame.display.gl_set_attribute(pygame.GL_CONTEXT_MAJOR_VERSION, 3)
pygame.display.gl_set_attribute(pygame.GL_CONTEXT_MINOR_VERSION, 3)
before calling
pygame.display.set_mode(display, pygame.DOUBLEBUF | pygame.OPENGL | pygame.RESIZABLE)
Before doing that, using pygame.display.gl_get_attribute() would return 2.2. The changes were applied and I got 3.3.
However, after I set the version properly ImGUI is crashing with the following error:
Traceback (most recent call last):
File "/home/user/miniconda3/envs/CGI/lib/python3.11/site-packages/OpenGL/latebind.py", line 41, in __call__
return self._finalCall( *args, **named )
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: 'NoneType' object is not callable
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/user/Projects/CGI/visualizer/renderer.py", line 353, in <module>
main(logger, config)
File "/home/user/Projects/CGI/visualizer/renderer.py", line 248, in main
gui = GUI(width, height, logger, wireframe_enabled, bbox_enabled, zoom_factor, transl_factor, dataloader)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/user/Projects/CGI/visualizer/Gui.py", line 12, in __init__
self.impl = PygameRenderer()
^^^^^^^^^^^^^^^^
File "/home/user/miniconda3/envs/CGI/lib/python3.11/site-packages/imgui/integrations/pygame.py", line 14, in __init__
super(PygameRenderer, self).__init__()
File "/home/user/miniconda3/envs/CGI/lib/python3.11/site-packages/imgui/integrations/base.py", line 18, in __init__
self.refresh_font_texture()
File "/home/user/miniconda3/envs/CGI/lib/python3.11/site-packages/imgui/integrations/opengl.py", line 251, in refresh_font_texture
gl.glTexImage2D(gl.GL_TEXTURE_2D, 0, gl.GL_ALPHA, width, height, 0, gl.GL_ALPHA, gl.GL_UNSIGNED_BYTE, pixels)
File "/home/user/miniconda3/envs/CGI/lib/python3.11/site-packages/OpenGL/latebind.py", line 45, in __call__
return self._finalCall( *args, **named )
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/user/miniconda3/envs/CGI/lib/python3.11/site-packages/OpenGL/wrapper.py", line 877, in wrapperCall
raise err
File "/home/user/miniconda3/envs/CGI/lib/python3.11/site-packages/OpenGL/wrapper.py", line 870, in wrapperCall
result = wrappedOperation( *cArguments )
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/user/miniconda3/envs/CGI/lib/python3.11/site-packages/OpenGL/error.py", line 228, in glCheckError
raise GLError(
OpenGL.error.GLError: GLError(
err = 1281,
description = b'invalid value',
baseOperation = glTexImage2D,
pyArgs = (
GL_TEXTURE_2D,
0,
GL_ALPHA,
512,
64,
0,
GL_ALPHA,
GL_UNSIGNED_BYTE,
b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0...,
),
cArgs = (
GL_TEXTURE_2D,
0,
GL_ALPHA,
512,
64,
0,
GL_ALPHA,
GL_UNSIGNED_BYTE,
b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0...,
),
cArguments = (
GL_TEXTURE_2D,
0,
GL_ALPHA,
512,
64,
0,
GL_ALPHA,
GL_UNSIGNED_BYTE,
b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0...,
)
)
I was unable to find info right out of the bat regarding the ImGUI integration with PyGame and where a specific version is required.
I played around with the major and minor numbers and I can get ImGUI to work in 3.1. Anything above that leads to a crash. I am unable to find information on OpenGL 3.1 in ImGui's documentation.
Is this fixable? Do I have to build from source to get the latest ImGUI and the Python bindings to work together?