[BUG]: INITIAZLIZATION WITHOUT GPU

[muedavid]

Describe the bug
bproc.init() calls RendererUtility.set_render_devices(). However in set_render_devices fails if no GPU is connected. There is a flag to set use_cpu. However this flag can not be set in the init() function. Thus currently blenderproc can only be used with GPU.

My suggestion would be to either allow to set the flag to the init() function itself or if it fails to find a GPU device to use CPU per default.

General Information

1. Which BlenderProc version are you using? 2.5

2. On which operating system are you? Ubuntu

3. Have you checked the issue tracker to see if a similar issue has been opened? Yes

4. Have you changed BlenderProc in any way besides the config file? If yes, are you sure that this change does not affect the problem you are having? Yes

To Reproduce
Steps to reproduce the behavior:

1. just run any blenderproc file without having a GPU

[themasterlink]

Hey,

yes, it seems that here:

BlenderProc/blenderproc/python/renderer/RendererUtility.py

Lines 654 to 659 in ea934e1

	# Make sure desired_gpu_device_type is a list
	if desired_gpu_ids is not None and not isinstance(desired_gpu_ids, list):
	desired_gpu_ids = [desired_gpu_ids]
	# Decide between gpu and cpu rendering
	if not desired_gpu_device_type or use_only_cpu:

No check is performed to validate that these GPU types exist.

Best,
Max

[muedavid]

Hi Max

Thanks for your reply. Should I send you a PR for this small change or are you going to update it ?

Best,

David

[themasterlink]

That hasn't been fixed yet. I will keep this open until it does, ok? ;)

[MartinSmeyer]

This was actually solved in #740