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Maniphest T61314

crash when drawing images, fonts etc using icon_value arg or template_icon_view function
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Description

System Information
Operating system: Ubuntu 17.10
Graphics card: Nvidia GTX 1050

Blender Version
Broken: 3d16a268ee68
Worked: 9df460203517

Custom images, fonts, etc, that are registered via bpy.utils.previews, will crash Blender when they are drawn in the UI, using the icon_value argument or the template_icon_view function.

  • register custom image(s), font(s)
  • draw them in a menu or panel

Alternatively:

  • check the supplied ui_previews_custom_icon.py template
  • run it and switch to Object in the properties panel
  • Blender should crash

Update:
This may go even deeper. Material preview icons seem to be affacted as well. Just creating a new material from the properties panel crashes Blender.

Related Objects

Event Timeline

MACHIN3 (MACHIN3) created this task.Feb 8 2019, 10:37 AM
Philipp Oeser (lichtwerk) lowered the priority of this task from 90 to 30.Feb 8 2019, 10:43 AM
Philipp Oeser (lichtwerk) added a subscriber: Philipp Oeser (lichtwerk).

Could you share a minimal blendfile with required script and images/font so we can reproduce?
(this will save a lot of time for [multiple] devs looking at this and makes sure we are all on the same page... thx!)

MACHIN3 (MACHIN3) added a comment.Feb 8 2019, 10:48 AM

You can just check the supplied ui_previews_custom_icon.py template.

Run it and switch to Object in the properties panel. That should crash Blender.

MACHIN3 (MACHIN3) updated the task description. (Show Details)Feb 8 2019, 10:49 AM
MACHIN3 (MACHIN3) updated the task description. (Show Details)Feb 8 2019, 11:10 AM
Philipp Oeser (lichtwerk) changed the task status from Unknown Status to Resolved.Feb 8 2019, 11:16 AM
Philipp Oeser (lichtwerk) claimed this task.

Can reproduce a crash with todays buildbot.

But cannot reproduce anymore (as of rB0822af4c4813f503dcd5de20facc588f67b1f9a6).

Please try tomorrows build, this is likely resolved already.

Will close this as resolved [but make sure to comment again (or reopen) if issues persist in tomorrows build...]

Philipp Oeser (lichtwerk) mentioned this in T61318: Material editor tab crashquits blender 2.8 every time..Feb 8 2019, 12:46 PM
Philipp Oeser (lichtwerk) mentioned this in T61323: 2.8 Blender Crash - adding material.Feb 8 2019, 1:53 PM
Philipp Oeser (lichtwerk) mentioned this in T61324: EXCEPTION_ACCESS_VIOLATION using bpy.utils.previews.Feb 8 2019, 2:07 PM