LoopTools Circle operator does not work with the mirror modifier #74834
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Reference: blender/blender-addons#74834
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System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce GTX 1070 with Max-Q Design/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 441.66
Blender Version
Broken: version: 2.83 (sub 8), branch: master, commit date: 2020-03-14 00:31, hash:
blender/blender@acab745078
Broken: version: 2.82a is also broken
Worked: 2.81a works correctly!
Addon Information
Name: LoopTools (4, 7, 2)
Author: Bart Crouch, Vladimir Spivak (cwolf3d)
Short description of error
Trying to run Circle on verts that span across the mirror line of a mirror modifier fails.
Exact steps for others to reproduce the error
bad_mirror.blend
Before operator runs:
After running Circle:
Added subscriber: @deadpin
blender/blender#75708 was marked as duplicate of this issue
#75173 was marked as duplicate of this issue
Added subscriber: @israelsr
I have the same problem
Added subscriber: @mano-wii
I don't see this as a bug, but it is because this tool, like all other tools used in editing meshes, only works on the vertices/edges/faces of the original mesh.
Supporting this has many implications:
Supporting this only for the mirror modifier would be very specific and in my view it is more of a feature request than a bug.
The result in the image is not "nonsence", it is a "circle" formed with the 4 selected vertices.
There's explicit code in the addon to handle modifiers and it worked in prior versions, as well as 2.79 (so I'll invoke the magical "regression" word to keep the bug alive :))
Perhaps the problem is that .to_mesh () returns the mesh without using the mirror modifier. Therefore, this modifier is not taken into account when calculating the circle. Need more research.
Added subscriber: @Blast
Added subscriber: @ankitm
see merged task
This issue was referenced by
af6e605a12
Changed status from 'Needs Triage' to: 'Resolved'
Added subscriber: @OliverVillar