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marian42 / mesh_to_sdf

Calculate signed distance fields for arbitrary meshes
https://pypi.org/project/mesh-to-sdf/
MIT License
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module 'pyglet.gl' has no attribute 'xlib' #13

Open hearables-pkinsella opened 4 years ago

hearables-pkinsella commented 4 years ago

Can you post the python version and version for the dependencies you use?

I am getting a pyglet xlib error running on Mac in python 3.6/3.7

YuDeng commented 4 years ago

Hi, I've met the same problem as yours. I follow the instruction in https://github.com/marian42/mesh_to_sdf/issues/8, and the problem is fixed. Hope it can help you, too.

hearables-pkinsella commented 4 years ago

Thank you. That seems to have solved the xlib error. But I am now running into an OpenGL error:

ValueError: Failed to initialize Pyglet window with an OpenGL >= 3+ context. If you're logged in via SSH, ensure that you're running your script with vglrun (i.e. VirtualGL). The internal error message was "'NoneType' object has no attribute 'setView_'"

Is this something you have seen?

YuDeng commented 4 years ago

Hi, if you are using a remote computer via SSH or some tools rely on Xserver, the OpenGL in the remote computer may not be able to run correctly. I fixed the issue by using a local pc. An alternative solution is to use some remote tools that support OpenGL such as VirtualGL mentioned in the error message.

marian42 commented 4 years ago

@hearables-pkinsella Can you try to add this in your main python script before you import mesh_to_sdf:

os.environ['PYOPENGL_PLATFORM'] = 'egl'

Please let me know if this fixes the problem. Are you working on a computer without a screen (via ssh)? Does your computer have a GPU?

AlexsaseXie commented 4 years ago

@hearables-pkinsella Can you try to add this in your main python script before you import mesh_to_sdf:

os.environ['PYOPENGL_PLATFORM'] = 'egl'

Please let me know if this fixes the problem. Are you working on a computer without a screen (via ssh)? Does your computer have a GPU?

I was using ssh with X-11 forwarding and DISPLAY. I tried to run example/voxelize_chair.py got the same error with @hearables-pkinsella . I modified example/voxelize_chair.py as you said. But I got anothor error.

(mesh_to_sdf) xieyunwei@ubuntu:~/workdir/occupancy_networks/external/mesh_to_sdf$ python example/voxelize_chair.py Scanning... Traceback (most recent call last): File "example/voxelize_chair.py", line 12, in cloud = get_surface_point_cloud(mesh, surface_point_method='scan', scan_count=20, scan_resolution=400) File "/home/xieyunwei/.conda/envs/mesh_to_sdf/lib/python3.6/site-packages/mesh_to_sdf/init.py", line 17, in get_surface_point_cloud return surface_point_cloud.create_from_scans(mesh, bounding_radius=bounding_radius, scan_count=scan_count, scan_resolution=scan_resolution, calculate_normals=calculate_normals) File "/home/xieyunwei/.conda/envs/mesh_to_sdf/lib/python3.6/site-packages/mesh_to_sdf/surface_point_cloud.py", line 131, in create_from_scans z_far=bounding_radius 3 File "/home/xieyunwei/.conda/envs/mesh_to_sdf/lib/python3.6/site-packages/mesh_to_sdf/scan.py", line 52, in init color, depth = render_normal_and_depth_buffers(mesh, camera, self.camera_transform, resolution) File "/home/xieyunwei/.conda/envs/mesh_to_sdf/lib/python3.6/site-packages/mesh_to_sdf/pyrender_wrapper.py", line 58, in render_normal_and_depth_buffers renderer = pyrender.OffscreenRenderer(resolution, resolution) File "/home/xieyunwei/.conda/envs/mesh_to_sdf/lib/python3.6/site-packages/pyrender/offscreen.py", line 31, in init self._create() File "/home/xieyunwei/.conda/envs/mesh_to_sdf/lib/python3.6/site-packages/pyrender/offscreen.py", line 149, in _create self._platform.init_context() File "/home/xieyunwei/.conda/envs/mesh_to_sdf/lib/python3.6/site-packages/pyrender/platforms/egl.py", line 188, in init_context EGL_NO_CONTEXT, context_attributes File "/home/xieyunwei/.conda/envs/mesh_to_sdf/lib/python3.6/site-packages/OpenGL/platform/baseplatform.py", line 402, in call return self( args, **named ) File "/home/xieyunwei/.conda/envs/mesh_to_sdf/lib/python3.6/site-packages/OpenGL/error.py", line 232, in glCheckError baseOperation = baseOperation, OpenGL.error.GLError: GLError( err = 12297, baseOperation = eglCreateContext, cArguments = ( <OpenGL._opaque.EGLDisplay_pointer object at 0x7f75a1564ea0>, <OpenGL._opaque.EGLConfig_pointer object at 0x7f75a1564e18>, <OpenGL._opaque.EGLContext_pointer object at 0x7f75a1504bf8>, <OpenGL.arrays.lists.c_int_Array_7 object at 0x7f75a7fdb7b8>, ), result = <OpenGL._opaque.EGLContext_pointer object at 0x7f75a152de18> )

It seems like that I cannot use(initialize) EGL on my server... Are there any additional steps needed to be done? btw I'm totally new to EGL.

AlexsaseXie commented 4 years ago

Hummmmmmm. It seems that this is an environment problem that cannot be solved easily.

When you install pyrender by pip3 install pyrender. The PyOpenGL required by pyrender should be version 3.1.0. I read the code in pyrender /platforms/egl.py and found the following comments. class EGLPlatform(Platform): """Renders using EGL (not currently working on Ubuntu). """

Here is the hint by pyrender's doc to solve the problem. I'll try OSMesa instead...