Random crashes when using Snaping #101647

New Issue

The5 · 2022-10-06T16:34:11+02:00

The5 commented

2022-10-06 16:34:11 +02:00

System Information
Operating system: Windows 10
Graphics card: RTX 3090 516.94

Blender Version
Broken: 3.3.0
Worked: ---

Short description of error
When using Snapping, blender crashes occasionally but without any identifiable pattern.
It seems to have started occurring to me in 3.3.0 and worked in 3.2.0 (or at least it was not frequent enough for me to be bothered by it).

Exact steps for others to reproduce the error
The crash occurs randomly and I found no way to reliably reproduce it yet.

Using the following snapping settings to snap the selected object to the surface of another object.

The selected/active object that is snapped onto the surface usually is a freshly created primitive.
The object that shall be snapped to is usually a complex mesh with modifiers like subdivisions, mirror, solidify, bevel and booleans.
The mesh that I suspect caused the crash on hovering over it has mirror, subdiv, 2nd subdiv, 4x boolean, mirror and after modifiers about 130k triangles.

Most recent crash log:
F_PMS_Jaguar_custom.crash.txt
The backtrace begins after spawning in a circle object, then holding CTRL and moving the cursor onto my target mesh.
It seems to occur in OpenSubdiv, which would make sense given my target snapping objects are usually subdivided.
I often have two subdivision modifiers on my objects and noticed severe slowdowns when editing a mesh with two of them rather than one.
Maybe that is related?

https://developer.blender.org/T96367 seems related but is apparently fixed

**System Information** Operating system: Windows 10 Graphics card: RTX 3090 516.94 **Blender Version** Broken: 3.3.0 Worked: --- **Short description of error** When using Snapping, blender crashes occasionally but without any identifiable pattern. It seems to have started occurring to me in 3.3.0 and worked in 3.2.0 (or at least it was not frequent enough for me to be bothered by it). **Exact steps for others to reproduce the error** The crash occurs randomly and I found no way to reliably reproduce it yet. Using the following snapping settings to snap the selected object to the surface of another object. ![blender_snap_crash.JPG](https://archive.blender.org/developer/F13623385/blender_snap_crash.JPG) The selected/active object that is snapped onto the surface usually is a freshly created primitive. The object that shall be snapped to is usually a complex mesh with modifiers like subdivisions, mirror, solidify, bevel and booleans. The mesh that I suspect caused the crash on hovering over it has mirror, subdiv, 2nd subdiv, 4x boolean, mirror and after modifiers about 130k triangles. Most recent crash log: [F_PMS_Jaguar_custom.crash.txt](https://archive.blender.org/developer/F13623392/F_PMS_Jaguar_custom.crash.txt) The backtrace begins after spawning in a circle object, then holding CTRL and moving the cursor onto my target mesh. It seems to occur in OpenSubdiv, which would make sense given my target snapping objects are usually subdivided. I often have two subdivision modifiers on my objects and noticed severe slowdowns when editing a mesh with two of them rather than one. Maybe that is related? https://developer.blender.org/T96367 seems related but is apparently fixed

The5 commented

2022-10-06 16:34:11 +02:00

Added subscriber: @The5

Germano Cavalcante commented

2022-10-06 22:09:49 +02:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2022-10-06 22:09:49 +02:00

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

Germano Cavalcante commented

2022-10-06 22:09:49 +02:00

Thanks for the report,

Please be sure to provide the simplified .blend file which we can use to reproduce the bug.
If the file is very large or complex, try simplifying it.
Normally .blend files can be simplified by removing most objects and disabling settings, until the problem reveals itself more clearly.

Thanks for the report, Please be sure to provide the simplified .blend file which we can use to reproduce the bug. If the file is very large or complex, try simplifying it. Normally .blend files can be simplified by removing most objects and disabling settings, until the problem reveals itself more clearly.

Massimiliano Puliero commented

2022-10-24 03:21:46 +02:00

Added subscriber: @MassimilianoPuliero

Massimiliano Puliero commented

2022-10-24 03:21:46 +02:00

Hi all,

I'm pretty sure that this happens only with the "GPU Subdivision" option is activated.
By turning it off the snapping is way faster and never crashed once in 2 hours of work.

Hope this help

Max

Hi all, I'm pretty sure that this happens only with the "GPU Subdivision" option is activated. By turning it off the snapping is way faster and never crashed once in 2 hours of work. Hope this help Max

The5 commented

2022-10-24 11:11:00 +02:00

Thanks, I'll give it a go with GPU Subdiv disabled and report back!

Thomas Dinges commented

2022-12-15 16:44:10 +01:00

Added subscriber: @ThomasDinges

Thomas Dinges commented

2022-12-15 16:44:10 +01:00

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

Thomas Dinges closed this issue

2022-12-15 16:44:10 +01:00

Thomas Dinges commented

2022-12-15 16:44:10 +01:00

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 open a new 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 open a new report with the required information.

Massimiliano Puliero commented

2022-12-22 13:39:24 +01:00

The bug is still present.

The5 commented

2022-12-22 14:08:17 +01:00

I still found no way to reproduce it, it remains random.

That said, I have not observed a crash with GPU subdiv off.

I still found no way to reproduce it, it remains random. That said, I have not observed a crash with GPU subdiv off.

Germano Cavalcante commented

2022-12-22 15:25:31 +01:00

Closed as duplicate of #101747

Germano Cavalcante closed this issue

2022-12-22 15:25:31 +01:00

Sign in to join this conversation.

No Label

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

Random crashes when using Snaping #101647