Sculpt Trim Tools hangs up Blender even with low poly meshes #95189

New Issue

Ramil Roosileht · 2022-01-24T22:53:31+01:00

Ramil Roosileht commented

2022-01-24 22:53:31 +01:00

System Information
Operating system: Windows-10-10.0.22000-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 472.84

Blender Version
Broken: version: 3.0.0, branch: master, commit date: 2021-12-02 18:35, hash: f1cca30557

Short description of error
When using sculpt mode's trim tools even with low poly (under 20k) meshes, in some cases memory consumption increases rapidly which may result in crash due to not enough memory available. If there is enough memory operation still will not be finished even after an hour but CPU will be used constantly.

Exact steps for others to reproduce the error

Open blend file
Start using trim tools

After a few cuts there will be a memory use surge and operation will hang up Blender

rock09.blend

Area that triggered issue:

Or see video for example with task manager running:
blender_NBJGJQwHq5.mp4

**System Information** Operating system: Windows-10-10.0.22000-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 472.84 **Blender Version** Broken: version: 3.0.0, branch: master, commit date: 2021-12-02 18:35, hash: `f1cca30557` **Short description of error** When using sculpt mode's trim tools even with low poly (under 20k) meshes, in some cases memory consumption increases rapidly which may result in crash due to not enough memory available. If there is enough memory operation still will not be finished even after an hour but CPU will be used constantly. **Exact steps for others to reproduce the error** - Open blend file - Start using trim tools # After a few cuts there will be a memory use surge and operation will hang up Blender [rock09.blend](https://archive.blender.org/developer/F12821893/rock09.blend) Area that triggered issue: ![Screenshot_1.png](https://archive.blender.org/developer/F12822758/Screenshot_1.png) Or see video for example with task manager running: [blender_NBJGJQwHq5.mp4](https://archive.blender.org/developer/F12821894/blender_NBJGJQwHq5.mp4)

Ramil Roosileht commented

2022-01-24 22:53:31 +01:00

Added subscriber: @Limarest

Garek commented

2022-01-25 10:45:36 +01:00

Added subscriber: @Garek

Garek commented

2022-01-25 10:45:36 +01:00

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

Garek commented

2022-01-25 10:45:36 +01:00

Hi, thanks for the report. I don't think there is a memory leak, I managed to reproduce it but it did not crashed. Just constantly used CPU without much change in memory after it's spiked. After some minutes memory returned from 14 Gb to about 3Gb (only for Blender) but even after an hour there was no progress nor Blender crashed.

In your video there is also no crash. If it did to you later or in other instances I assume it's when your system run out of memory. I'll edit task accordingly.

I think it creates problem with multiple areas that are occluded by each other. I also did not managed to replicate it in object mode with boolean using cylinder.

Area that triggered issue for me:

Hi, thanks for the report. I don't think there is a memory leak, I managed to reproduce it but it did not crashed. Just constantly used CPU without much change in memory after it's spiked. After some minutes memory returned from 14 Gb to about 3Gb (only for Blender) but even after an hour there was no progress nor Blender crashed. In your video there is also no crash. If it did to you later or in other instances I assume it's when your system run out of memory. I'll edit task accordingly. I think it creates problem with multiple areas that are occluded by each other. I also did not managed to replicate it in object mode with boolean using cylinder. Area that triggered issue for me: ![Screenshot_1.png](https://archive.blender.org/developer/F12822758/Screenshot_1.png)

Garek changed title from ~~Sculpt Trim Tools crash even with low poly meshes~~ to Sculpt Trim Tools hangs up Blender even with low poly meshes

2022-01-25 10:51:13 +01:00

Julien Kaspar commented

2022-05-10 09:53:04 +02:00

Added subscriber: @JulienKaspar

Julien Kaspar commented

2022-05-10 09:53:04 +02:00

I'd tag this as a known issue. The trim tools need to be further optimised or this is related to a project to put in warning messages in time. Sculpt Mode suffers from many accidental freezes from certain operations

Philipp Oeser commented

2022-11-16 13:09:24 +01:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2022-11-16 13:09:24 +01:00

Same as #84229 (Sculpt Trim tools are very slow), will merge reports

Philipp Oeser commented

2022-11-16 13:09:33 +01:00

Closed as duplicate of #84229

Philipp Oeser closed this issue

2022-11-16 13:09:33 +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

Sculpt Trim Tools hangs up Blender even with low poly meshes #95189

After a few cuts there will be a memory use surge and operation will hang up Blender