Boolean modifier - intersection fails for Suzanne and a cuboid #38962

New Issue

CodeManX · 2014-03-05T02:07:21+01:00

CodeManX commented

2014-03-05 02:07:21 +01:00

System Information
Windows 7

Blender Version
Broken: 2.69.11 ef40e889c

Short description of error
Cannot execute boolean operator appears at certain cuboid rotation angles, test file: intersect.blend

The following error is printed to console:

CSG failed, exception extern\carve\include\carve/csg_triangulator.hpp:396  tri_e
dge.find(e1) != tri_edge.end()

After a pretty aggressive remove doubles, it prints:

CSG failed, exception non intersecting group is not IN or OUT! (poly_b)
uncontained hole loop does not share vertices with any face loop!
uncontained hole loop does not share vertices with any face loop!
CSG failed, exception non intersecting group is not IN or OUT! (poly_a)
CSG failed, exception extern\carve\lib\triangulator.cpp:916  "didn't manage to l
ink up hole!"

Is it a known limitation even with new CARVE integration? And what exactly makes it fail?

**System Information** Windows 7 **Blender Version** Broken: 2.69.11 ef40e889c **Short description of error** `Cannot execute boolean operator` appears at certain cuboid rotation angles, test file: [intersect.blend](https://archive.blender.org/developer/F79951/intersect.blend) The following error is printed to console: ``` CSG failed, exception extern\carve\include\carve/csg_triangulator.hpp:396 tri_e dge.find(e1) != tri_edge.end() ``` After a pretty aggressive remove doubles, it prints: ``` CSG failed, exception non intersecting group is not IN or OUT! (poly_b) uncontained hole loop does not share vertices with any face loop! uncontained hole loop does not share vertices with any face loop! CSG failed, exception non intersecting group is not IN or OUT! (poly_a) CSG failed, exception extern\carve\lib\triangulator.cpp:916 "didn't manage to l ink up hole!" ``` Is it a known limitation even with new CARVE integration? And what exactly makes it fail?

CodeManX commented

2014-03-05 02:07:21 +01:00

Changed status to: 'Open'

CodeManX commented

2014-03-05 02:07:21 +01:00

Added subscriber: @CodeManX

Joel Godin commented

2014-03-05 03:14:00 +01:00

Added subscriber: @joel.godin

Joel Godin commented

2014-03-05 03:14:00 +01:00

For me this bug works just by adding cube, add monkey, add boolean to monkey (leave default intersect) choose cube, crash.

Crash log attached.

BoolBug.txt

OSX 10.9.2

For me this bug works just by adding cube, add monkey, add boolean to monkey (leave default intersect) choose cube, crash. Crash log attached. [BoolBug.txt](https://archive.blender.org/developer/F79974/BoolBug.txt) OSX 10.9.2

Ignatz commented

2014-03-05 08:26:44 +01:00

Added subscriber: @ignatz

Ignatz commented

2014-03-05 08:26:44 +01:00

I'm not qualified to examine the code, but I do know that the Suzanne model is not a completely closed model. To be precise, the eyes are open areas stuck into the head and I believe this would cause problems for the boolean operation.

Ignatz commented

2014-03-05 08:30:33 +01:00

Just ran a test. I did the following with the file in question: (A) selected Suzanne, went into edit mode and removed floating eye pieces. (B) Then filled up Suzanne's open eye sockets, recalculated mesh and then the boolean operation worked as expected with no complaints.