Headless rendering on ubuntu machine

[xinleipan]

I'm trying to get visual observations from a headless Ubuntu machine with MUJOCO_GL=egl, and got the following error report:

    AttributeError: 'GLXPlatform' object has no attribute 'EGL'

The same code can run on a desktop ubuntu with monitor without error report. It seems like this is related with the pyopengl package but I'm not sure how to solve this.

[xinleipan]

Solved. Solution: install PyOpenGL 3.1.4 and PyOpenGL_accelerate 3.1.4 and export MUJOCO_GL=osmesa and export PYOPENGL_PLATFORM=osmesa

[alimuldal]

You shouldn't need to set PYOPENGL_PLATFORM explicitly - this environment variable gets set automatically when either of the OSMesa or EGL rendering backends is imported (e.g. see here).

[alimuldal]

Are you importing modules from OpenGL elsewhere in your code by any chance? That error message suggests that GLXPlatform (which is the default on Linux) has already been imported. My guess is that somewhere in your code you're importing from OpenGL before we've had a chance to set PYOPENGL_PLATFORM=egl inside egl_renderer.py.

[xinleipan]

Thanks. I actually somehow solved this problem and it didn't appear anymore.

[wookayin]

For anyone who might run into this issue and find this issue from Googling: make sure you have libegl1 (or libegl-dev) packages installed.

[wsywsywsywsywsy979]

Solved. Solution: install PyOpenGL 3.1.4 and PyOpenGL_accelerate 3.1.4 and export MUJOCO_GL=osmesa and export PYOPENGL_PLATFORM=osmesa
hi , if my code must use pyopengl3.1.0，and I have added "os.environ["PYOPENGL_PLATFORM"] = "osmesa"" before "import pyrender" ，but I get an error that “'GLXPlatform' object has no attribute 'OSMesa'”?could you give me some advice to solve this problem?

[wsywsywsywsywsy979]

hi ， I have tried "os.environ['PYOPENGL_PLATFORM'] = 'egl' ", but get an error "GLError(
err = 12297,
baseOperation = eglCreateContext,
cArguments = (
<OpenGL._opaque.EGLDisplay_pointer object at 0x7f77438fc510>,
<OpenGL._opaque.EGLConfig_pointer object at 0x7f77438fc400>,
<OpenGL._opaque.EGLContext_pointer object at 0x7f7743b5a1e0>,
<OpenGL.arrays.lists.c_int_Array_7 object at 0x7f77438fc950>,
),
result = <OpenGL._opaque.EGLContext_pointer object at 0x7f77438fce18>
)"， could you give me more advice to solve this problem?

[IridescentJiang]

Are you importing modules from OpenGL elsewhere in your code by any chance? That error message suggests that GLXPlatform (which is the default on Linux) has already been imported. My guess is that somewhere in your code you're importing from OpenGL before we've had a chance to set PYOPENGL_PLATFORM=egl inside egl_renderer.py.

Thanks! export PYOPENGL_PLATFORM=egl works for me!