Mesh deform binding crashes blender. #87446

New Issue

Paul · 2021-04-13T02:43:19+02:00

Paul commented

2021-04-13 02:43:19 +02:00

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 2080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 465.89

Blender Version
Broken: version: 2.92.0, branch: master, commit date: 2021-02-24 16:25, hash: 02948a2cab
Worked: Not applicable. Have not found any versions that do. I think, when I had 2.83 installed the first time, that it worked there.

Short description of error
Blender takes slightly longer than expected when binding mesh at precision 5, and then at precision 7 it freezes before eventually crashing. This error was only noticed recently and objects that existed in the file previously can be unbound and bound again without issue. Mesh complexity does not appear to be a factor as complex meshes from before I noticed work and meshes as simple as two cubes afterward do not.

Exact steps for others to reproduce the error
From the default file, duplicate the cube or otherwise add another mesh. With all transformations applied, attempt to use one as the mesh deform cage for the other. Upon pressing bind at precision 7, blender will freeze and eventually crash.

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 2080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 465.89 **Blender Version** Broken: version: 2.92.0, branch: master, commit date: 2021-02-24 16:25, hash: `02948a2cab` Worked: Not applicable. Have not found any versions that do. I think, when I had 2.83 installed the first time, that it worked there. **Short description of error** Blender takes slightly longer than expected when binding mesh at precision 5, and then at precision 7 it freezes before eventually crashing. This error was only noticed recently and objects that existed in the file previously can be unbound and bound again without issue. Mesh complexity does not appear to be a factor as complex meshes from before I noticed work and meshes as simple as two cubes afterward do not. **Exact steps for others to reproduce the error** From the default file, duplicate the cube or otherwise add another mesh. With all transformations applied, attempt to use one as the mesh deform cage for the other. Upon pressing bind at precision 7, blender will freeze and eventually crash.

Paul commented

2021-04-13 02:43:19 +02:00

Added subscriber: @Daylight

Philipp Oeser commented

2021-04-13 08:37:40 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2021-04-13 08:37:40 +02:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Philipp Oeser commented

2021-04-13 08:37:40 +02:00

You are likely running out of memory. Usual policy regarding that is as follows:

Thanks for the report. It appears this crashes because Blender ran out of memory.
While we want to improve Blender to handle such cases memory gracefully, this is not currently considered a bug.

I think, when I had 2.83 installed the first time, that it worked there

Please verify this (you can still get 2.83 at https://download.blender.org/release/) and report back if this is indeed a regression.

You are likely running out of memory. Usual policy regarding that is as follows: ``` Thanks for the report. It appears this crashes because Blender ran out of memory. While we want to improve Blender to handle such cases memory gracefully, this is not currently considered a bug. ``` > I think, when I had 2.83 installed the first time, that it worked there Please verify this (you can still get 2.83 at https://download.blender.org/release/) and report back if this is indeed a regression.

Paul commented

2021-04-13 13:39:14 +02:00

Yes, it appears to be the case that it is somehow running out of memory, thank you.

In 2.83.0, the binding process of two cubes at precision 7 takes about half an hour and gradually increases memory usage up to something like 29GB. When it eventually maxes out it stays like this for about three minutes and then it appears to have worked except the bound mesh does not actually move.

In 2.92.0, with preexisting meshes at ~13,000 vertices for the main and ~1,000 for the deform object, blender uses about 1.25 GB for no more than three minutes before the mesh binds successfully.

The fact that it doesn't work now but did before suggests that it's something that changed on my computer and not a blender issue so I should work there. I understand if you have other things to do but do you have any last advice on where I should be looking for why it's using inexplicably high amounts of memory all of a sudden?

Yes, it appears to be the case that it is somehow running out of memory, thank you. In 2.83.0, the binding process of two cubes at precision 7 takes about half an hour and gradually increases memory usage up to something like 29GB. When it eventually maxes out it stays like this for about three minutes and then it appears to have worked except the bound mesh does not actually move. In 2.92.0, with preexisting meshes at ~13,000 vertices for the main and ~1,000 for the deform object, blender uses about 1.25 GB for no more than three minutes before the mesh binds successfully. The fact that it doesn't work now but did before suggests that it's something that changed on my computer and not a blender issue so I should work there. I understand if you have other things to do but do you have any last advice on where I should be looking for why it's using inexplicably high amounts of memory all of a sudden?

Philipp Oeser commented

2021-04-13 13:50:22 +02:00

In 2.83.0, the binding process of two cubes at precision...

You mean 2.93? (because otherwise the step from 2.83 to 2.92 would seem like an improvement rather than regression?)

> In 2.83.0, the binding process of two cubes at precision... You mean 2.93? (because otherwise the step from 2.83 to 2.92 would seem like an improvement rather than regression?)

Paul commented

2021-04-13 13:58:04 +02:00

No, I mean 2.83. I went back to that version to see if it worked, and while it does not, it does not crash either.

In 2.92 the same attempt at binding with two new cube objects also sucks up memory and eventually causes blender to crash. I am not sure why older meshes work perfectly fine.

No, I mean 2.83. I went back to that version to see if it worked, and while it does not, it does not crash either. In 2.92 the same attempt at binding with two new cube objects also sucks up memory and eventually causes blender to crash. I am not sure why older meshes work perfectly fine.

Paul commented

2021-04-13 15:07:37 +02:00

Updated further with further testing. Apologies for the repetitions.

Version 2.83.0: Two new cube objects bound at precision 7 maxes out memory eventually and freezes up for a few minutes, and then returns to functionality. The binding does not work but blender does not crash.

Version 2.92.0: Two new cube objects bound at precision 7 maxes out memory eventually, freezes up, and then blender crashes.

Version 2.92.0: Old mesh deform cage and old bound object bind successfully at precision 7 in three minutes, maxing out at 1.25 GB of memory.

Version 2.92.0: Old mesh deform cage and new bound object bind successfully at precision 7 in three minutes.

Version 2.93.0 Alpha: Two new cube objects bound at precision 7 maxes out memory and freezes things up. Blender eventually crashes.

Version 2.93.0 Alpha: Old mesh deform cage and old mesh deform object bind successfully at precision 7 after two or three minutes. 1.29 GB memory used instead of 1.25.

Updated further with further testing. Apologies for the repetitions. Version 2.83.0: Two new cube objects bound at precision 7 maxes out memory eventually and freezes up for a few minutes, and then returns to functionality. The binding does not work but blender does not crash. Version 2.92.0: Two new cube objects bound at precision 7 maxes out memory eventually, freezes up, and then blender crashes. Version 2.92.0: Old mesh deform cage and old bound object bind successfully at precision 7 in three minutes, maxing out at 1.25 GB of memory. Version 2.92.0: Old mesh deform cage and new bound object bind successfully at precision 7 in three minutes. Version 2.93.0 Alpha: Two new cube objects bound at precision 7 maxes out memory and freezes things up. Blender eventually crashes. Version 2.93.0 Alpha: Old mesh deform cage and old mesh deform object bind successfully at precision 7 after two or three minutes. 1.29 GB memory used instead of 1.25.

Ankit Meel commented

2021-04-28 15:29:22 +02:00

Changed status from 'Needs User Info' to: 'Needs Triage'

Ankit Meel commented

2021-04-28 15:36:45 +02:00

Added subscriber: @ankitm

Ankit Meel commented

2021-04-28 15:36:45 +02:00

Changed status from 'Needs Triage' to: 'Archived'

Ankit Meel closed this issue

2021-04-28 15:36:45 +02:00

Ankit Meel commented

2021-04-28 15:36:45 +02:00

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed.

Thanks again for the report. If the problem persists please report with the required information.

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed. Thanks again for the report. If the problem persists please report with the required information.

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Mesh deform binding crashes blender. #87446