App crash/GUI irresponsive on Mesh Boolean

[witchcraftsman]

OrcaSlicer Version

1.8.1

OS version

macOS 12.7.2

Additional system information

10 core CPU (macbook pro 2021)
32gb RAM

Printer

Not applicable

How to reproduce

1. Add a complex shape (300k+ triangles)
2. Add a simple shape (800 triangles)
3. Assemble them
4. Subtract from shape 1 with shape 2 using Mesh Boolean

Actual results

• Subtraction uses just one core (that's OK, the same is with Fusion 360, for instance)
• GUI dies, it's not possible to switch from/to app to see the progress or to cancel the operation - it just won't render (that's bad)
• It goes on for a while then RAM becomes exhausted (see the screenshot)

Expected results

• This should should at least finish at the end
• GUI handling could be on a separate process
• RAM usage should be controlled, or the operation should be prohibited with memory pre-calculations done

Project file & Debug log uploads

orca-issue.3mf.zip
debug_Tue_Dec_19_11_15_56_46163.log.0.zip

Checklist of files to include

• Log file
• Project file

[silence48]

another Mac crash that is possibly related to #2921 which might be interesting to look at, since on mac it seems to run out of memory.

[github-actions]

Orca bot: this issue is stale because it has been open for 90 days with no activity.

[github-actions]

Orca bot: This issue was closed because it has been inactive for 7 days since being marked as stale.