Booltools difference operation makes extra joined meshes in the object dissappear #83968

New Issue

Ruakuu Kyuzo · 2020-12-20T00:01:14+01:00

Ruakuu Kyuzo commented

2020-12-20 00:01:14 +01:00

System Information
Operating system: Linux-5.4.0-58-generic-x86_64-with-debian-bullseye-sid 64 Bits
Graphics card: GeForce GTX 1060 3GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 450.80.02

Blender Version
Broken: version: 2.91.0, branch: master, commit date: 2020-11-25 08:34, hash: blender/blender@0f45cab862
Worked: (newest version of Blender that worked as expected)

Addon Information
Name: Bool Tool (0, 4, 1)
Author: Vitor Balbio, Mikhail Rachinskiy, TynkaTopi, Meta-Androcto, Simon Appelt

Short description of error
I modeled a few low poly rocks using bisect tool and joined some together to make a bigger formation. Made a sharp form from a cube to cut some more detail on the rocks using booltools difference.

When I try the operation it works as expected for the cut but some extra joined meshes in the object disappear that don't have direct interaction with the boolean operation. The bad meshes only disappear when they are intersecting with other meshes in the object, if I move them apart they are not affected.

Exact steps for others to reproduce the error

Select "cutter" object
Select "rock_formation" object
Hit on Edit tab -> Bool Tool -> Auto Boolean -> Difference

rocks_boolean.blend

system-info.txt

**System Information** Operating system: Linux-5.4.0-58-generic-x86_64-with-debian-bullseye-sid 64 Bits Graphics card: GeForce GTX 1060 3GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 450.80.02 **Blender Version** Broken: version: 2.91.0, branch: master, commit date: 2020-11-25 08:34, hash: `blender/blender@0f45cab862` Worked: (newest version of Blender that worked as expected) **Addon Information** Name: Bool Tool (0, 4, 1) Author: Vitor Balbio, Mikhail Rachinskiy, TynkaTopi, Meta-Androcto, Simon Appelt **Short description of error** I modeled a few low poly rocks using bisect tool and joined some together to make a bigger formation. Made a sharp form from a cube to cut some more detail on the rocks using booltools difference. When I try the operation it works as expected for the cut but some extra joined meshes in the object disappear that don't have direct interaction with the boolean operation. The bad meshes only disappear when they are intersecting with other meshes in the object, if I move them apart they are not affected. **Exact steps for others to reproduce the error** 1. Select "cutter" object 2. Select "rock_formation" object 3. Hit on Edit tab -> Bool Tool -> Auto Boolean -> Difference [rocks_boolean.blend](https://archive.blender.org/developer/F9518398/rocks_boolean.blend) [system-info.txt](https://archive.blender.org/developer/F9518400/system-info.txt) ![Screenshot from 2020-12-19 16-21-28_01.jpg](https://archive.blender.org/developer/F9518409/Screenshot_from_2020-12-19_16-21-28_01.jpg) ![Screenshot from 2020-12-19 16-21-28_02.jpg](https://archive.blender.org/developer/F9518411/Screenshot_from_2020-12-19_16-21-28_02.jpg)

Ruakuu Kyuzo commented

2020-12-20 00:01:14 +01:00

Added subscriber: @Ruakuu

Robert Guetzkow commented

2020-12-21 17:10:55 +01:00

Added subscriber: @rjg

Robert Guetzkow commented

2020-12-21 17:10:55 +01:00

Your mesh has self-intersections. If you select the rock_formation add a Boolean modifiers and select the cutter as object, you will see the same result as with the bool tool. If you enable Self the problem goes away.

I'm not sure how big the performance impact is and if there are edge cases where you wouldn't want this enabled, but perhaps Bool Tools could enable this option by default if it uses the new Exact solver internally.

Your mesh has self-intersections. If you select the `rock_formation` add a *Boolean* modifiers and select the `cutter` as object, you will see the same result as with the bool tool. If you enable *Self* the problem goes away. I'm not sure how big the performance impact is and if there are edge cases where you wouldn't want this enabled, but perhaps Bool Tools could enable this option by default if it uses the new *Exact* solver internally.

Ruakuu Kyuzo commented

2021-01-23 22:22:27 +01:00

Thanks, yes you are correct, if I enable 'Self' in the boolean modifier that solves the issue, the problem will be that I can't use the boolean tool because I see no way to enable that in the addon, any suggestions?

Omar Emara commented

2022-03-11 12:53:58 +01:00

Closed as duplicate of #83074

Omar Emara closed this issue

2022-03-11 12:53:58 +01:00

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Booltools difference operation makes extra joined meshes in the object dissappear #83968