pyrender and opengl issue on VMs

[alighofrani95]

I have to try loading the project on VM machine and this issue occurs,
my machine is UBUNTU 18.04, and 3D is enabled in VMware.
Indeed I tried with multiple pyrender and OpenGL Versions but doesn't solve it.

INFO - 2021-05-02 18:43:37,442 - base - finished build model.
Traceback (most recent call last):
File "/root/Desktop/final/m3d/src/core/test.py", line 230, in
main()
File "/root/Desktop/final/m3d/src/core/test.py", line 210, in main
demo = Demo()
File "/root/Desktop/final/m3d/src/core/test.py", line 7, in init
self.prepare_modules()
File "/root/Desktop/final/m3d/src/core/test.py", line 15, in prepare_modules
self.visualizer = Visualizer(resolution=self.vis_size, input_size=self.input_size,with_renderer=True)
File "/root/Desktop/final/m3d/src/core/../lib/models/../utils/../maps_utils/../dataset/../dataset/../dataset/../visualization/visualization.py", line 23, in init
self.renderer = get_renderer(resolution=resolution)
File "/root/Desktop/final/m3d/src/core/../lib/models/../utils/../maps_utils/../dataset/../dataset/../dataset/../visualization/../visualization/renderer.py", line 142, in get_renderer
renderer = Renderer(faces,resolution=resolution[:2])
File "/root/Desktop/final/m3d/src/core/../lib/models/../utils/../maps_utils/../dataset/../dataset/../dataset/../visualization/../visualization/renderer.py", line 72, in init
point_size=1.0)
File "/usr/local/lib/python3.6/dist-packages/pyrender/offscreen.py", line 31, in init
self._create()
File "/usr/local/lib/python3.6/dist-packages/pyrender/offscreen.py", line 149, in _create
self._platform.init_context()
File "/usr/local/lib/python3.6/dist-packages/pyrender/platforms/egl.py", line 188, in init_context
EGL_NO_CONTEXT, context_attributes
File "/usr/local/lib/python3.6/dist-packages/OpenGL/platform/baseplatform.py", line 409, in call
return self( *args, **named )
File "src/errorchecker.pyx", line 58, in OpenGL_accelerate.errorchecker._ErrorChecker.glCheckError
OpenGL.error.GLError: GLError(
err = 12297,
baseOperation = eglCreateContext,
cArguments = (
<OpenGL._opaque.EGLDisplay_pointer object at 0x7f3dba91e2f0>,
<OpenGL._opaque.EGLConfig_pointer object at 0x7f3dba91e378>,
<OpenGL._opaque.EGLContext_pointer object at 0x7f3dbcaabe18>,
<OpenGL.arrays.lists.c_int_Array_7 object at 0x7f3dbcaab1e0>,
),
result = <OpenGL._opaque.EGLContext_pointer object at 0x7f3dba940268>
)

[Arthur151]

I have met this problem on one of three remote servers. It occurs in some times but not always. You can try to repeatly run the code. This error doesn't occur in some times.

[flywheel1412]

you could reinstall cuda driver with opengl support.

[JiajunWan]

I found a solution in this post.

[Arthur151]

Does adding the MESA_GL_VERSION_OVERRIDE=4.1 work for you? @JiajunWan

[JiajunWan]

Does adding the MESA_GL_VERSION_OVERRIDE=4.1 work for you? @JiajunWan

Yeah it worked. But in my case I also need to change GL_MAX_SAMPLES to 1 in glRenderbufferStorageMultisample() as it says in the post.