Crash when changing material color in 3D view w/ Render enabled #34725

New Issue

John Wise · 2013-03-22T01:13:50+01:00

John Wise commented

2013-03-22 01:13:50 +01:00

%%%--- Windows 8 64bit, NVidia GTX 570---

- Blender version with error: 2.66a from BuildBot and subsequent experimental builds. Version that worked: 2.65a ---


- Crash when changing material color using color selection tools while Render is enabled in the viewport, any view ---


- Steps for others to reproduce the error (preferably based on attached .blend file) ---

I'm using the default .blend file with a cube, have also tested on other shapes with same results using Cycles.
I have tried this with Cuda disabled and enabled with the same resultant crash.
I have also used the official WHQL NVidia drivers and the two subsequent beta drivers NVidia has released. Under all drivers Blender 2.65a works correctly.

Open Blender, set Viewport Shading to: Rendered.
Go to Materials and choose Diffuse Color.
Move it around a few times to change the color - crash.

If I had to guess, I'd think this is a driver issue with NVidia - but, I can use 2.65a with any of the three NVidia drivers from 310.90 to 314.21 and Blender materials working perfectly while using Viewport Shading set to Rendered under Cycles. If this were purely a driver issue, then why does 2.65a work perfectly while all 2.66 versions (as far as I've tested) are not working - at least for me.

My work around is to simply use Material Shading.

%%%

%%%--- Windows 8 64bit, NVidia GTX 570--- - Blender version with error: 2.66a from BuildBot and subsequent experimental builds. Version that worked: 2.65a --- - Crash when changing material color using color selection tools while Render is enabled in the viewport, any view --- - Steps for others to reproduce the error (preferably based on attached .blend file) --- I'm using the default .blend file with a cube, have also tested on other shapes with same results using Cycles. I have tried this with Cuda disabled and enabled with the same resultant crash. I have also used the official WHQL NVidia drivers and the two subsequent beta drivers NVidia has released. Under all drivers Blender 2.65a works correctly. Open Blender, set Viewport Shading to: Rendered. Go to Materials and choose Diffuse Color. Move it around a few times to change the color - crash. If I had to guess, I'd think this is a driver issue with NVidia - but, I can use 2.65a with any of the three NVidia drivers from 310.90 to 314.21 and Blender materials working perfectly while using Viewport Shading set to Rendered under Cycles. If this were purely a driver issue, then why does 2.65a work perfectly while all 2.66 versions (as far as I've tested) are not working - at least for me. My work around is to simply use Material Shading. %%%

John Wise commented

2013-03-22 01:13:50 +01:00

Changed status to: 'Open'

Ton Roosendaal commented

2013-03-22 10:55:34 +01:00

%%%In 2.66a we added preview rendering in material buttons, can you check if that's the issue? Just make the preview panel hidden (close it with triangle).

Do note that Blender's code is cross platform and being used for linux/osx/windows successfully - somehow we get mostly reports like this for Windows 8, which is quite suspicious...
%%%

%%%In 2.66a we added preview rendering in material buttons, can you check if that's the issue? Just make the preview panel hidden (close it with triangle). Do note that Blender's code is cross platform and being used for linux/osx/windows successfully - somehow we get mostly reports like this for Windows 8, which is quite suspicious... %%%

Thomas Dinges commented

2013-03-22 14:17:59 +01:00

%%%So you are using GPU rendering with CUDA, not CPU rendering, is that correct?%%%

John Wise commented

2013-03-22 15:19:47 +01:00

%%%Thomas, I have tried this with both GPU/CPU and the results are the same. But due to Ton's suggestion I can add more details.

Closing the preview window doesn't make a difference.

But these things do: set Viewport Shading to Rendered, go to Materials, click on Diffuse Color and slide around the color palette and I crash. If I do not 'Slide" my mouse over the palette but only choose a color with a single click, I don not "immediately" crash. Though I will crash after I do this 3 to 5 times.

I tried switching between Rendered and Solid between color changes and fairly consistently can do this 4 or 5 times, each time choosing a different color for the cube, and there is not crash. Each time I zoom in the rendered scene and can spin around the rendered object and there is no crash. Then about the 4th or 5th attempt to change the color - crash. It is the same whether the Material Preview window is open or not.%%%

%%%Thomas, I have tried this with both GPU/CPU and the results are the same. But due to Ton's suggestion I can add more details. Closing the preview window doesn't make a difference. But these things do: set Viewport Shading to Rendered, go to Materials, click on Diffuse Color and slide around the color palette and I crash. If I do not 'Slide" my mouse over the palette but only choose a color with a single click, I don not "immediately" crash. Though I will crash after I do this 3 to 5 times. I tried switching between Rendered and Solid between color changes and fairly consistently can do this 4 or 5 times, each time choosing a different color for the cube, and there is not crash. Each time I zoom in the rendered scene and can spin around the rendered object and there is no crash. Then about the 4th or 5th attempt to change the color - crash. It is the same whether the Material Preview window is open or not.%%%

Fable Fox commented

2013-03-24 12:38:06 +01:00

%%%I tried it on Win 7 64 bit / Blender 2.66a. NVidia GT240. Both with Preview shown and not shown (collapsed).

No crash.

I have to agree with Ton here, it could be Win 8 related... maybe combination of driver and OS issues, and how Blender access it.

BTW, you've said 'files attached' but I don't see any.%%%

%%%I tried it on Win 7 64 bit / Blender 2.66a. NVidia GT240. Both with Preview shown and not shown (collapsed). No crash. I have to agree with Ton here, it could be Win 8 related... maybe combination of driver and OS issues, and how Blender access it. BTW, you've said 'files attached' but I don't see any.%%%

Thomas Dinges commented

2013-03-24 12:41:21 +01:00

%%%Make sure you use driver 314.** or newer. I also can't confirm any crashers on Win 7 here. %%%

John Wise commented

2013-03-24 17:24:16 +01:00

%%%I've tried drivers from 310.90 to the latest 314.21.

It may very well be a Windows 8 issue as I've also tested this on a Windows 8 laptop and am getting the same crash.

@Fable I for one did not in fact attach a file. While the crash occurs with any object or scene, one only needs to test on the default scene for the crash to happen.%%%

%%%I've tried drivers from 310.90 to the latest 314.21. It may very well be a Windows 8 issue as I've also tested this on a Windows 8 laptop and am getting the same crash. @Fable I for one did not in fact attach a file. While the crash occurs with any object or scene, one only needs to test on the default scene for the crash to happen.%%%

John Wise commented

2013-03-25 06:18:36 +01:00

%%%A change has occurred with builder bot v2.66.4 r55562 - If I choose Viewport Shading: Rendered, I get (Cuda error; Out of memory in cuLaunchGrid(cuPathTrace, xblocks, yblocks). The viewport itself is cubed, as in it looks like an alpha background. There is no object in this view

Another thing, using CPU rendering and choosing different Diffuse colors, I can now select 8 to 10 color changes before crashing.

And earlier I had not pointed this out, but Viewport Shading set to Material with GPU rendering enabled has no problems.%%%

%%%A change has occurred with builder bot v2.66.4 r55562 - If I choose Viewport Shading: Rendered, I get (Cuda error; Out of memory in cuLaunchGrid(cuPathTrace, xblocks, yblocks). The viewport itself is cubed, as in it looks like an alpha background. There is no object in this view Another thing, using CPU rendering and choosing different Diffuse colors, I can now select 8 to 10 color changes before crashing. And earlier I had not pointed this out, but Viewport Shading set to Material with GPU rendering enabled has no problems.%%%

Marián Kosa commented

2013-03-26 20:07:13 +01:00

%%%--- Windows 7 64bit, 4GB RAM, NVidia Geforce 9500 GT (new driver)---
- Blender version with error: 2.66a and blender-2.66-r55587-win64.--- First time using cycles so i don't know if it works before...

Hi,
I have similar but really weird problem.

Problem: Blender crash when i am building/changing material (probably with anything) and have 3d vieport rendering enabled.
weird stuff: When i deleted subsurf and then add it again it didn't crash.

I am uploading both files in scifi.rar (i should rename that probably :) ). I tried simplified it as much as possible, but i was not able to replicate it from scratch.
To crash blender, just change color or energy in node tree couple times (1-2 second changing color and it crashed ...)%%%

%%%--- Windows 7 64bit, 4GB RAM, NVidia Geforce 9500 GT (new driver)--- - Blender version with error: 2.66a and blender-2.66-r55587-win64.--- First time using cycles so i don't know if it works before... Hi, I have similar but really weird problem. Problem: Blender crash when i am building/changing material (probably with anything) and have 3d vieport rendering enabled. weird stuff: When i deleted subsurf and then add it again it didn't crash. I am uploading both files in scifi.rar (i should rename that probably :) ). I tried simplified it as much as possible, but i was not able to replicate it from scratch. To crash blender, just change color or energy in node tree couple times (1-2 second changing color and it crashed ...)%%%

John Wise commented

2013-04-08 08:20:22 +02:00

%%%Using build bot r55891 now, problem described above still exists, and still on more than one installation.

New find: if I resize the Properties panel with Materials selected and Preview ON - I crash.

If I close the Preview panel first, I do not crash.%%%

%%%Using build bot r55891 now, problem described above still exists, and still on more than one installation. New find: if I resize the Properties panel with Materials selected and Preview ON - I crash. If I close the Preview panel first, I do not crash.%%%

Sir Torx Screwdriver commented

2013-04-10 10:49:15 +02:00

%%%try using the viewport preview render from within the camera and enable border render (shift+B) for like 1/8th of the camera and try changing the colour.
If that doesn't crash its probably just an out of memory crash, so that your hardware cannot handle dealing with such a big scene at once without splitting it into tiles + making changes in realtime.%%%

%%%try using the viewport preview render from within the camera and enable border render (shift+B) for like 1/8th of the camera and try changing the colour. If that doesn't crash its probably just an out of memory crash, so that your hardware cannot handle dealing with such a big scene at once without splitting it into tiles + making changes in realtime.%%%

Brecht Van Lommel commented

2013-04-12 17:54:35 +02:00

%%%I haven't been able to redo any of these crashes myself. If you get crashes please always attach a .blend file, for example the preview panel is not open in the default startup.blend, and there may still be other subtle things that influence the crash.

I recently fixed a crash related to OSL (revision 55792), which might fix the crash in scifi.rar as that file has OSL enabled. I also just fixed another crash that may be related (revision 55991). So if anyone could confirm the crash in builds with revision 55991 or newer that would be helpful.%%%

%%%I haven't been able to redo any of these crashes myself. If you get crashes please always attach a .blend file, for example the preview panel is not open in the default startup.blend, and there may still be other subtle things that influence the crash. I recently fixed a crash related to OSL (revision 55792), which might fix the crash in scifi.rar as that file has OSL enabled. I also just fixed another crash that may be related (revision 55991). So if anyone could confirm the crash in builds with revision 55991 or newer that would be helpful.%%%

Thomas Dinges commented

2013-04-13 11:56:59 +02:00

%%%Hi Brecht,
I can confirm a crasher here now:

SVN 56005, Windows 7 x64, MSVC build, CPU rendering:

Start Blender, switch to Cycles.
Enable OSL.
Enable 3D View render and go to material context.
Make Preview render visible, enable "Use Nodes".
Open Color picker and change the color fast, it can take 30 seconds or so until the crash happens.

Note: this only happens with OSL enabled, when disabled I cannot trigger the crash. %%%

%%%Hi Brecht, I can confirm a crasher here now: SVN 56005, Windows 7 x64, MSVC build, CPU rendering: * Start Blender, switch to Cycles. * Enable OSL. * Enable 3D View render and go to material context. * Make Preview render visible, enable "Use Nodes". * Open Color picker and change the color fast, it can take 30 seconds or so until the crash happens. Note: this only happens with OSL enabled, when disabled I cannot trigger the crash. %%%

Scott Jenkins commented

2013-04-17 04:55:29 +02:00

%%%I was able to reproduce on 2.66a distrobution release with OSL on 64bit intel Ubuntu 12.10 EVGA Titan, but as the previous poster only with OSL checked and I thought that was pretty much experimental and off limits for most part anyway? I just thought I'd chime in since it happened on linux, but again not very meaningful since it was using OSL.%%%

Thomas Dinges commented

2013-04-17 05:23:28 +02:00

%%%OSL is neither experimental nor off limits. %%%

Scott Jenkins commented

2013-04-17 07:39:48 +02:00

%%%Very good then, the reason I posted is to show that there was an issue with Ubuntu as well as Windows with OSL checked. %%%

Brecht Van Lommel commented

2013-04-22 16:27:03 +02:00

%%%Committed a fix for OSL now that should avoid this crash. I'm not really sure though because it's difficult to redo it here, crash happens only rarely. Please test, and if it's not fixed I can reopen this report.%%%

Brecht Van Lommel commented

2013-04-22 16:27:04 +02:00

Changed status from 'Open' to: 'Resolved'

Brecht Van Lommel closed this issue

2013-04-22 16:27:04 +02:00

Jesper K. Pedersen commented

2013-04-29 21:23:10 +02:00

%%%I have the same problem with Blender 2.66a on Ubuntu 12.10 / 64bit

uname -ra
Linux io 3.5.0-27-generic #46-Ubuntu SMP Mon Mar 25 19:58:17 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

VGA compatible controller: NVIDIA Corporation GF114 [GeForce GTX 560 Ti] (rev a1) (prog-if 00 [VGA controller])

      Subsystem: ASUSTeK Computer Inc. Device 8390
      Flags: bus master, fast devsel, latency 0, IRQ 16
      Memory at de000000 (32-bit, non-prefetchable) [size=32M]
      Memory at d0000000 (64-bit, prefetchable) [size=128M]
      Memory at d8000000 (64-bit, prefetchable) [size=64M]
      I/O ports at ec00 [size=128]
      [virtual] Expansion ROM at ddf80000 [disabled] [size=512K]
      Capabilities: <access denied>
      Kernel driver in use: nvidia
      Kernel modules: nvidia_current, nouveau, nvidiafb

OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: GeForce GTX 560 Ti/PCIe/SSE2
OpenGL version string: 4.2.0 NVIDIA 304.88
OpenGL shading language version string: 4.20 NVIDIA via Cg compiler

Blender 2.66a downloaded from blender.org

Factory defaults - default cube.
Change viewport to Cycles render.
Select cube - go to materiel - defuse color - slide color selector around. On button release it crashes.

blender.crash.txt :

Blender 2.66 (sub 1), Revision: 55057

bpy.data.screens["Default"].(null) = 'RENDERED' # Property

backtrace

/home/jkp/Programs/blender/blender() [0xea6c1c]
/home/jkp/Programs/blender/blender() [0xea6e5a]
/lib/x86_64-linux-gnu/libc.so.6(+0x364a0) [0x7f70cccd34a0]
/home/jkp/Programs/blender/blender(_ZN3OSL3pvt26OSL_Dummy_JITMemoryManager17setMemoryWritableEv+0x7) [0xe8b077]
/home/jkp/Programs/blender/blender() [0x33dd39c]
/home/jkp/Programs/blender/blender() [0x343c5b2]
/home/jkp/Programs/blender/blender() [0x3b0063f]
/home/jkp/Programs/blender/blender() [0x3b00723]
/home/jkp/Programs/blender/blender() [0x3b00846]
/home/jkp/Programs/blender/blender() [0x33d8af7]
/home/jkp/Programs/blender/blender() [0x33d8e7f]
/home/jkp/Programs/blender/blender() [0x33d8fd9]
/home/jkp/Programs/blender/blender() [0xe8ab90]
/home/jkp/Programs/blender/blender(_ZN3OSL3pvt16RuntimeOptimizer14optimize_groupEv+0xb7c) [0xe4dfcc]
/home/jkp/Programs/blender/blender(_ZN3OSL3pvt17ShadingSystemImpl14optimize_groupERNS_18ShadingAttribStateERNS0_11ShaderGroupE+0x14a) [0xe4e90a]
/home/jkp/Programs/blender/blender(_ZN3OSL14ShadingContext7executeENS_3pvt9ShaderUseERNS_18ShadingAttribStateERNS_13ShaderGlobalsEb+0x186) [0xdfe636]
/home/jkp/Programs/blender/blender(_ZN3ccl9OSLShader15eval_backgroundEPNS_13KernelGlobalsEPNS_10ShaderDataEiNS_13ShaderContextE+0x4e) [0x19c6b4e]
/home/jkp/Programs/blender/blender() [0x1946adc]
/home/jkp/Programs/blender/blender() [0x194a47e]
/home/jkp/Programs/blender/blender(_ZN3ccl26kernel_cpu_sse3_path_traceEPNS_13KernelGlobalsEPfPjiiiii+0x1437) [0x19603b7]
/home/jkp/Programs/blender/blender(_ZN3ccl9CPUDevice17thread_path_traceERNS_10DeviceTaskE+0x19f) [0x1868e2f]
/home/jkp/Programs/blender/blender(_ZN3ccl13TaskScheduler10thread_runEi+0x28) [0x1850828]
/home/jkp/Programs/blender/blender(_ZN3ccl6thread3runEPv+0x18) [0x1850e78]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x7e9a) [0x7f70cd662e9a]
/lib/x86_64-linux-gnu/libc.so.6(clone+0x6d) [0x7f70ccd90ccd]

%%%

%%%I have the same problem with Blender 2.66a on Ubuntu 12.10 / 64bit uname -ra Linux io 3.5.0-27-generic #46-Ubuntu SMP Mon Mar 25 19:58:17 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux VGA compatible controller: NVIDIA Corporation GF114 [GeForce GTX 560 Ti] (rev a1) (prog-if 00 [VGA controller]) ``` Subsystem: ASUSTeK Computer Inc. Device 8390 Flags: bus master, fast devsel, latency 0, IRQ 16 Memory at de000000 (32-bit, non-prefetchable) [size=32M] Memory at d0000000 (64-bit, prefetchable) [size=128M] Memory at d8000000 (64-bit, prefetchable) [size=64M] I/O ports at ec00 [size=128] [virtual] Expansion ROM at ddf80000 [disabled] [size=512K] Capabilities: <access denied> Kernel driver in use: nvidia Kernel modules: nvidia_current, nouveau, nvidiafb ``` OpenGL vendor string: NVIDIA Corporation OpenGL renderer string: GeForce GTX 560 Ti/PCIe/SSE2 OpenGL version string: 4.2.0 NVIDIA 304.88 OpenGL shading language version string: 4.20 NVIDIA via Cg compiler Blender 2.66a downloaded from blender.org Factory defaults - default cube. Change viewport to Cycles render. Select cube - go to materiel - defuse color - slide color selector around. On button release it crashes. blender.crash.txt : # Blender 2.66 (sub 1), Revision: 55057 bpy.data.screens["Default"].(null) = 'RENDERED' # Property # backtrace /home/jkp/Programs/blender/blender() [0xea6c1c] /home/jkp/Programs/blender/blender() [0xea6e5a] /lib/x86_64-linux-gnu/libc.so.6(+0x364a0) [0x7f70cccd34a0] /home/jkp/Programs/blender/blender(_ZN3OSL3pvt26OSL_Dummy_JITMemoryManager17setMemoryWritableEv+0x7) [0xe8b077] /home/jkp/Programs/blender/blender() [0x33dd39c] /home/jkp/Programs/blender/blender() [0x343c5b2] /home/jkp/Programs/blender/blender() [0x3b0063f] /home/jkp/Programs/blender/blender() [0x3b00723] /home/jkp/Programs/blender/blender() [0x3b00846] /home/jkp/Programs/blender/blender() [0x33d8af7] /home/jkp/Programs/blender/blender() [0x33d8e7f] /home/jkp/Programs/blender/blender() [0x33d8fd9] /home/jkp/Programs/blender/blender() [0xe8ab90] /home/jkp/Programs/blender/blender(_ZN3OSL3pvt16RuntimeOptimizer14optimize_groupEv+0xb7c) [0xe4dfcc] /home/jkp/Programs/blender/blender(_ZN3OSL3pvt17ShadingSystemImpl14optimize_groupERNS_18ShadingAttribStateERNS0_11ShaderGroupE+0x14a) [0xe4e90a] /home/jkp/Programs/blender/blender(_ZN3OSL14ShadingContext7executeENS_3pvt9ShaderUseERNS_18ShadingAttribStateERNS_13ShaderGlobalsEb+0x186) [0xdfe636] /home/jkp/Programs/blender/blender(_ZN3ccl9OSLShader15eval_backgroundEPNS_13KernelGlobalsEPNS_10ShaderDataEiNS_13ShaderContextE+0x4e) [0x19c6b4e] /home/jkp/Programs/blender/blender() [0x1946adc] /home/jkp/Programs/blender/blender() [0x194a47e] /home/jkp/Programs/blender/blender(_ZN3ccl26kernel_cpu_sse3_path_traceEPNS_13KernelGlobalsEPfPjiiiii+0x1437) [0x19603b7] /home/jkp/Programs/blender/blender(_ZN3ccl9CPUDevice17thread_path_traceERNS_10DeviceTaskE+0x19f) [0x1868e2f] /home/jkp/Programs/blender/blender(_ZN3ccl13TaskScheduler10thread_runEi+0x28) [0x1850828] /home/jkp/Programs/blender/blender(_ZN3ccl6thread3runEPv+0x18) [0x1850e78] /lib/x86_64-linux-gnu/libpthread.so.0(+0x7e9a) [0x7f70cd662e9a] /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d) [0x7f70ccd90ccd] %%%

Brecht Van Lommel commented

2013-04-29 21:49:00 +02:00

%%%That does indeed look like the same issue. The 2.67 test build has the fix:
http://download.blender.org/release/Blender2.67/%%%

%%%That does indeed look like the same issue. The 2.67 test build has the fix: http://download.blender.org/release/Blender2.67/%%%

Jesper K. Pedersen commented

2013-04-30 00:24:43 +02:00

%%%Unfortunately the RC1 of 2.67 gives the same problem (on the same machine)

jkp@io:~/Programs/blender-2.67-RC-linux-glibc211-x86_64$ cat /tmp/blender.crash.txt

Blender 2.66 (sub 6), Revision: 56271

bpy.data.screens["Default"].(null) = 'RENDERED' # Property
bpy.context.object.active_material.diffuse_color = (0.479657, 0.8, 0.705051) # Property
bpy.context.object.active_material.diffuse_color = (0.8, 0.297926, 0.507929) # Property

backtrace

./blender() [0xf24159]
./blender() [0xf24397]
/lib/x86_64-linux-gnu/libc.so.6(+0x364a0) [0x7f7353b594a0]
[0x7f733c71bca0]
%%%

%%%Unfortunately the RC1 of 2.67 gives the same problem (on the same machine) jkp@io:~/Programs/blender-2.67-RC-linux-glibc211-x86_64$ cat /tmp/blender.crash.txt # Blender 2.66 (sub 6), Revision: 56271 bpy.data.screens["Default"].(null) = 'RENDERED' # Property bpy.context.object.active_material.diffuse_color = (0.479657, 0.8, 0.705051) # Property bpy.context.object.active_material.diffuse_color = (0.8, 0.297926, 0.507929) # Property # backtrace ./blender() [0xf24159] ./blender() [0xf24397] /lib/x86_64-linux-gnu/libc.so.6(+0x364a0) [0x7f7353b594a0] [0x7f733c71bca0] %%%

Jesper K. Pedersen commented

2013-04-30 19:26:04 +02:00

%%%A quick test with 2.65a did not result in a crash.%%%

John Wise commented

2013-05-04 07:16:53 +02:00

%%%Brecht,

Sorry about the late replay but I've been in Germany on family emergency. My problem with crashing I have just learned is not Blender itself, it is in my startup.blend file.

I cannot duplicate the error in 2.65 and if I start Blender 2.66 (most current buildbot and official release) with a fresh startup.blend file I do not get a crash condition while moving through the color picker. My apologies for not trying this sooner.

I am including a link to my startup.blend should you decide you'd like to try and find what is causing the condition as apparently I'm not the only one having this issue.

http://www.pasteall.org/blend/21131%%%

%%%Brecht, Sorry about the late replay but I've been in Germany on family emergency. My problem with crashing I have just learned is not Blender itself, it is in my startup.blend file. I cannot duplicate the error in 2.65 and if I start Blender 2.66 (most current buildbot and official release) with a fresh startup.blend file I do not get a crash condition while moving through the color picker. My apologies for not trying this sooner. I am including a link to my startup.blend should you decide you'd like to try and find what is causing the condition as apparently I'm not the only one having this issue. http://www.pasteall.org/blend/21131%%%

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Crash when changing material color in 3D view w/ Render enabled #34725

Blender 2.66 (sub 1), Revision: 55057

backtrace

Blender 2.66 (sub 6), Revision: 56271

backtrace