Blender crashes when scaling or rotating in UV Image Editor #39653

New Issue

Heiko Schmidt · 2014-04-09T10:59:38+02:00

Heiko Schmidt commented

2014-04-09 10:59:38 +02:00

System Information
Win7 64bit GTX 285

Blender Version
2.70 dfbd994

Open the attached file and go in Image Editor Full Screen mode and press for example S or R. Blender crashes. When I remove the Edge Split modifier no crash happens.uv_bug.blend

**System Information** Win7 64bit GTX 285 **Blender Version** 2.70 dfbd994 Open the attached file and go in Image Editor Full Screen mode and press for example S or R. Blender crashes. When I remove the Edge Split modifier no crash happens.[uv_bug.blend](https://archive.blender.org/developer/F84350/uv_bug.blend)

Heiko Schmidt commented

2014-04-09 10:59:38 +02:00

Changed status to: 'Open'

Heiko Schmidt commented

2014-04-09 10:59:38 +02:00

Added subscriber: @heik

Sergey Sharybin commented

2014-04-09 12:02:57 +02:00

Added subscriber: @Sergey

Sergey Sharybin commented

2014-04-09 12:02:57 +02:00

Can not reproduce the crash here on linux.

Does it happen with latest builds from builder.blender.org or official 2.70 release?

Can not reproduce the crash here on linux. Does it happen with latest builds from builder.blender.org or official 2.70 release?

Willi commented

2014-04-09 13:22:22 +02:00

Added subscriber: @willi-2

Willi commented

2014-04-09 13:22:22 +02:00

Can't repro either on Win7/64 (+AMD HD6850). Neither 2.70 official nor latest build.

Heiko Schmidt commented

2014-04-09 14:27:04 +02:00

It looks like the crash only happens with VBOs enabled.

Sergey Sharybin commented

2014-04-10 18:22:12 +02:00

Added subscriber: @ThomasDinges

Sergey Sharybin commented

2014-04-10 18:22:12 +02:00

Can't redo with the VBOs enabled as well. Could be something GPU or platform specific.

@ThomasDinges, mind testing this issue?

Can't redo with the VBOs enabled as well. Could be something GPU or platform specific. @ThomasDinges, mind testing this issue?

Heiko Schmidt commented

2014-04-10 19:37:56 +02:00

I just tested it again with the official blender builds (win32, 1ce726a), (win64, 9b60174) and with an own build (df63e8f) under Linux Ubuntu (but Virtual Machine) and allways the same crash (after loading factory settings no crash, but a crash as soon after I activated VBOs).

I just tested it again with the official blender builds (win32, 1ce726a), (win64, 9b60174) and with an own build (df63e8f) under Linux Ubuntu (but Virtual Machine) and allways the same crash (after loading factory settings no crash, but a crash as soon after I activated VBOs).

Sergey Sharybin commented

2014-04-10 19:43:31 +02:00

@heik, virtual machine doesn't count. It might have buggy GPU which wouldn't support VBOs ;)

Lukas Tönne commented

2014-05-02 12:41:55 +02:00

Added subscriber: @LukasTonne

Lukas Tönne commented

2014-05-02 12:41:55 +02:00

I'm getting an assert failure with the test file here:
https://developer.blender.org/diffusion/B/browse/master/source/blender/gpu/intern/gpu_buffers.c$508

Note that going full-screen with image editor is actually necessary for this to happen, in split layout it won't fail on the assert (presumably because without a 3D view the dm doesn't get initialized?)

I'm getting an assert failure with the test file here: https://developer.blender.org/diffusion/B/browse/master/source/blender/gpu/intern/gpu_buffers.c$508 Note that going full-screen with image editor is actually necessary for this to happen, in split layout it won't fail on the assert (presumably because without a 3D view the dm doesn't get initialized?)

Antonis Ryakiotakis was assigned by Campbell Barton

2014-05-06 09:34:33 +02:00

Campbell Barton commented

2014-05-06 09:34:33 +02:00

Added subscriber: @ideasman42

Campbell Barton commented

2014-05-06 09:34:33 +02:00

Psy-fi, Should this be an exception where initializing materials isnt needed? draw_uvs_dm_shadow is just drawing UV's so there's not really any point in requiring materials.

Psy-fi, Should this be an exception where initializing materials isnt needed? `draw_uvs_dm_shadow` is just drawing UV's so there's not really any point in requiring materials.

Antonis Ryakiotakis commented

2014-05-07 01:40:57 +02:00

I don't like those material initializations all over the place either but there's a catch I think. If the same object is drawn on the viewport for instance, this would create the GPUObject and any subsequent drawing in 3D viewport using VBOs would not have the materials correctly assigned. So better prepare the mesh buffers correctly anyway.

Antonis Ryakiotakis commented

2014-05-07 01:46:08 +02:00

The reason this bug happens in full screen is that the GPUObject is already initialized in viewport. Do we really have any guarantee that the viewport will always be processed first though? I don't think so, better go by the 'book' :)