fail to import Renderer. How to solve this problem?

[a139122679]

fail to import Renderer.
INFO:utils.train_utils:log name: logs/pymaf_res50_mix/pymaf_res50_mix_as_lp3_mlp256-128-64-5_Dec28-10-52-18-ZWK
INFO:models.hmr:loaded resnet50 imagenet pretrained model
INFO:datasets.base_dataset:len of h36m: 312188
INFO:datasets.base_dataset:len of lsp-orig: 1000
INFO:datasets.base_dataset:len of mpii: 14810
INFO:datasets.base_dataset:len of lspet: 9428
INFO:datasets.base_dataset:len of coco: 28344
INFO:datasets.base_dataset:len of mpi-inf-3dhp: 96507
INFO:datasets.base_dataset:len of h36m-p2-mosh: 26859
No renderer for visualization.
Traceback (most recent call last):
File "train.py", line 69, in
main(None, ngpus_per_node, options)
File "train.py", line 37, in main
trainer = Trainer(options)
File "/user3/lwx1055260/ID2462_PyMAF_for_pytorch/core/base_trainer.py", line 28, in init
self.init_fn()
File "/user3/lwx1055260/ID2462_PyMAF_for_pytorch/core/trainer.py", line 143, in init_fn
self.iuv_maker = IUV_Renderer(output_size=cfg.MODEL.PyMAF.DP_HEATMAP_SIZE)
NameError: name 'IUV_Renderer' is not defined

[HongwenZhang]

IUV_Renderer is currently depended on neural_renderer.
If you fail to install neural_renderer, you can disable densepose rendering by setting --misc MODEL.PyMAF.AUX_SUPV_ON False.

[a139122679]

Thank you for your reply. After the neural_renderer dependency is installed, A new problem has arisen.. The Pyrender dependency is installed successfully. I do not know why the error message "pyrender undefined" is reported. Please check it. Traceback (most recent call last):
File "train.py", line 9, in
from core.trainer import Trainer
File "/user3/lwx1055260/ID2462_PyMAF_for_pytorch/core/trainer.py", line 28, in
from utils.renderer import OpenDRenderer, IUV_Renderer
File "/user3/lwx1055260/ID2462_PyMAF_for_pytorch/utils/renderer.py", line 30, in
class WeakPerspectiveCamera(pyrender.Camera):
NameError: name 'pyrender' is not defined

[HongwenZhang]

It seems that the pyrender package is not successfully imported or installed.

[a139122679]

It seems so, I removed the try method from your code, and now it's an error like this. Traceback (most recent call last):
File "/opt/conda/lib/python3.6/site-packages/PyOpenGL-3.1.0-py3.6.egg/OpenGL/platform/glx.py", line 17, in GL
mode=ctypes.RTLD_GLOBAL
File "/opt/conda/lib/python3.6/site-packages/PyOpenGL-3.1.0-py3.6.egg/OpenGL/platform/ctypesloader.py", line 45, in loadLibrary
return dllType( name, mode )
File "/opt/conda/lib/python3.6/ctypes/init.py", line 348, in init
self._handle = _dlopen(self._name, mode)
OSError: ('GL: cannot open shared object file: No such file or directory', 'GL', None)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "train.py", line 9, in
from core.trainer import Trainer
File "/user3/lwx1055260/ID2462_PyMAF_for_pytorch/core/trainer.py", line 28, in
from utils.renderer import OpenDRenderer, IUV_Renderer
File "/user3/lwx1055260/ID2462_PyMAF_for_pytorch/utils/renderer.py", line 21, in
import pyrender
File "/opt/conda/lib/python3.6/site-packages/pyrender/init.py", line 3, in
from .light import Light, PointLight, DirectionalLight, SpotLight
File "/opt/conda/lib/python3.6/site-packages/pyrender/light.py", line 10, in
from OpenGL.GL import *
File "/opt/conda/lib/python3.6/site-packages/PyOpenGL-3.1.0-py3.6.egg/OpenGL/GL/init.py", line 3, in
from OpenGL import error as _error
File "/opt/conda/lib/python3.6/site-packages/PyOpenGL-3.1.0-py3.6.egg/OpenGL/error.py", line 12, in
from OpenGL import platform, _configflags
File "/opt/conda/lib/python3.6/site-packages/PyOpenGL-3.1.0-py3.6.egg/OpenGL/platform/init.py", line 35, in
_load()
File "/opt/conda/lib/python3.6/site-packages/PyOpenGL-3.1.0-py3.6.egg/OpenGL/platform/init.py", line 32, in _load
plugin.install(globals())
File "/opt/conda/lib/python3.6/site-packages/PyOpenGL-3.1.0-py3.6.egg/OpenGL/platform/baseplatform.py", line 92, in install
namespace[ name ] = getattr(self,name,None)
File "/opt/conda/lib/python3.6/site-packages/PyOpenGL-3.1.0-py3.6.egg/OpenGL/platform/baseplatform.py", line 14, in get
value = self.fget( obj )
File "/opt/conda/lib/python3.6/site-packages/PyOpenGL-3.1.0-py3.6.egg/OpenGL/platform/glx.py", line 96, in GetCurrentContext
return self.GL.glXGetCurrentContext
File "/opt/conda/lib/python3.6/site-packages/PyOpenGL-3.1.0-py3.6.egg/OpenGL/platform/baseplatform.py", line 14, in get
value = self.fget( obj )
File "/opt/conda/lib/python3.6/site-packages/PyOpenGL-3.1.0-py3.6.egg/OpenGL/platform/glx.py", line 20, in GL
raise ImportError("Unable to load OpenGL library", *err.args)
ImportError: ('Unable to load OpenGL library', 'GL: cannot open shared object file: No such file or directory', 'GL', None)

[HongwenZhang]

We have only tested our code on Ubuntu. I have no idea about the above errors :(
You can also refer to the answers in Issue #20.