Boolean Modifiers Don't Work Properly #58812

New Issue

Quinton Gordon · 2018-12-05T19:21:26+01:00

Quinton Gordon commented

2018-12-05 19:21:26 +01:00

System Information
Operating system:
Graphics card:

Blender Version
blender-2.80-a205493426b-win64

Certain options for the boolean modifier doesn't work how it should. The union option worked once for some reason but never again. The other options will do weird things. 99% of the time I get a messed up result or nothing happens at all when using the boolean modifier.

Use the boolean modifier on meshes. You can try and union two meshes etc.

**System Information** Operating system: Graphics card: **Blender Version** blender-2.80-a205493426b-win64 Certain options for the boolean modifier doesn't work how it should. The union option worked once for some reason but never again. The other options will do weird things. 99% of the time I get a messed up result or nothing happens at all when using the boolean modifier. Use the boolean modifier on meshes. You can try and union two meshes etc.

Quinton Gordon commented

2018-12-05 19:21:26 +01:00

Added subscriber: @Mr.Prick

Sebastian Parborg commented

2018-12-05 19:27:50 +01:00

Added subscriber: @ZedDB

Sebastian Parborg commented

2018-12-05 19:27:50 +01:00

I can not reproduce this issue. If I take two cubes all boolean mode seem to work fine between them.

msalv commented

2018-12-05 20:57:00 +01:00

Added subscriber: @moisessalvador

msalv commented

2018-12-05 20:57:00 +01:00

It works fine for me. Consider providing a blend file with an example of this. Also, check that the Overlap threshold in the Boolean modifier is set to 0.0 exactly, since merging vertices can give problems

Quinton Gordon commented

2018-12-07 21:37:48 +01:00

Boolean Issue.blend It doesn't always happen, but in this case, the union option wouldn't work.

[Boolean Issue.blend](https://archive.blender.org/developer/F5874817/Boolean_Issue.blend) It doesn't always happen, but in this case, the union option wouldn't work.

msalv commented

2018-12-07 23:44:38 +01:00

Sadly, that's a known limitation, sorry. Parallel faces with 0 distance on the same space don't work, and some volume needs to overla. Here is an exagerated example, but you can separate faces and overlap the volumes just a very very little ammount like this and it would still work. I heard Howard Trickey might work on improving booleans in the future :)

Sadly, that's a known limitation, sorry. Parallel faces with 0 distance on the same space don't work, and some volume needs to overla. Here is an exagerated example, but you can separate faces and overlap the volumes just a very very little ammount like this and it would still work. I heard Howard Trickey might work on improving booleans in the future :) ![Sin título.png](https://archive.blender.org/developer/F5875597/Sin_título.png)

Eoin O'Neill commented

2018-12-07 23:58:26 +01:00

Added subscriber: @eoinoneill