Edit mode operations make inverted normals #40950
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Reference: blender/blender#40950
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System Information
Linux Mint Debian Edition, AMD Phenom II X6 1090T, Nvidia 460 GTX, 8Gb RAM.
Blender Version
Broken: 2.71
Short description of error
some Edit mode operations invert the normals
Exact steps for others to reproduce the error
add any object, enter edit mode and use any of this operations: mirror, spin or transformation:warp.
Mirror: using the 3D cursor and press CTRL+M to mirror selected mesh. The normals will get inverted. (using Global X,Y,Z or local X,Y,Z)
Spin: inverts resulting geometry
Warp: From transforms, only warp seems affected
Changed status to: 'Open'
Added subscriber: @DGordillo
Changed status from 'Open' to: 'Archived'
You have to manually flip normals after, this is intended behavior.
closing.
I'm sorry but I can't understand why spin and warp operations resulting in Inverted normals could be a intended behavior (Ok, mirror operation in edit mode, yes, maybe that one has its logic, after all you're mirroring a mesh) I've been talking with other users and they also believe there's something wrong with how 2.71 handles normals in some cases.