Carve Boolean solver crash when joining meshes #53246
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Reference: blender/blender#53246
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System Information
Ubuntu Linux 16.04.3
GeForce GTX 980 Ti
Nvidia driver version 384.90
Blender Version
Broken: # Blender 2.79 (sub 0), Commit date: 2017-09-11 10:43, Hash
5bd8ac9abf
Short description of error
Joining a mesh to an existing mesh that is used as a boolean modifier causes a crash
Exact steps for others to reproduce the error
open the attached blender file. 2 meshes are selected. type ctrl-j to join them.
Sometimes it crashes immediately, sometimes I have to hit Tab twice, then it crashes.
When this initially happened, the crash.txt file contained the message:
CSG failed, exception /home/sources/blender-release/extern/carve/lib/intersect_face_division.cpp:578 "implement me"
but when I was able to reproduce it, that message was no longer in the crash.txt. I mention it just in case it provides a clue.
Changed status to: 'Open'
Added subscriber: @chrisbare
test2.blend
test2.crash.txt
CSG failed, exception /home/sources/blender-release/extern/carve/lib/intersect_face_division.cpp:578 "implement me"to Carve Boolean solver crash when joining meshesAdded subscriber: @bliblubli
I had to hit tab a lot (spam it more than 10 times) after joining and got a crash indeed on win7 using latest master.
Added subscribers: @Sergey, @lichtwerk
triangulator gives us a tri with two identical idxs (337,336,337) which asserts here
I noticed @Sergey fixed some stuff here already in
34c7fd1a11
, so could you have a look?Changed status from 'Open' to: 'Resolved'
The issue was caused by some precision issue inside Carve itself.
Since we've got BMesh solver which is much easier for us to maintain, we've removed Carve solver now. So this bug should no longer happen!