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regcs / AliceLG

A Blender add-on for the use of Blender with the Looking Glass holographic displays.
GNU General Public License v3.0
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Error that requires relaunch on (nearly) every undo #40

Closed omgitsraven closed 3 years ago

omgitsraven commented 3 years ago

This has been happening from the start, but I keep forgetting to report it: hitting 'undo' causes various errors, some of which require relaunching Blender.

  1. Create a new scene
  2. Put the Looking Glass window onto your Looking Glass
  3. Move the default cube
  4. Hit 'undo'

It gives this error:

Python: Traceback (most recent call last):
  File "C:\Users\Hazel\AppData\Roaming\Blender Foundation\Blender\2.92\scripts\addons\AliceLG-master\operators\looking_glass_viewport.py", line 566, in modal
    if self.settings.ShowLightfieldWindow != LookingGlassAddon.LightfieldWindowInvoker.settings.ShowLightfieldWindow:
ReferenceError: StructRNA of type Scene has been removed

location: <unknown location>:-1

So far it isn't a breaking problem, but then:

  1. Move the cube again
  2. Hit 'undo' again

and now, the Looking Glass display turns flat. Worse: trying to close and re-open the Looking Glass window at this point causes Blender to crash altogether.

I'm on Windows 10, Blender 2.92.

regcs commented 3 years ago

Thanks for the report. I encountered this issue as well several times and it is unfortunately very hard to fix. However, I just tested it quickly with the upcoming version 2.0 and the problem most-likely will be gone there. At least, I could not reproduce the pathway you suggested on that version. Again, this is connected to the different live view mechanism that Alice/LG v.2.0 will use.

So, I will close this and consider it fixed as well.