i got a question about UV unwrapping. Though the unwrapping behaviour after pressing U sometimes ( rarely ) gives
a correct/expected result, it often behaves randomly and uses to do some strange unexpected and above all illogical
Lemme explain with a lil pic:
It’s a simple-like-hell mesh made of 4 tris and quad faces. I unwrapped the two leftmost faces and trimmed UVs by hand. There come the ‘A’ part of the pic… Now that i got what i want with those 2 faces, i select the 2 other ones, and hit U->unwrap.
The result i obtain is showed ( against all odds ) in B part of the picture. In all logic, the 2 last faces wich are coplanar with the 2 first ones should unwrap AT LEAST toward the right ( good ) direction. Instead of this, the angle of the common edge is used as a ( something like ) mirror axis and vertices are unwrapped uncorrectly.
There comes then the B part of the picture.
Finally i edited this by hand and showed in the C part of the pic what would be normally expected ( i’d say this is the
kind of logic a 5 years old child could show up )
What do you all think about that ?
Is it a bug ? malfunction ? feature ( to leave hours of work to modeling ppl ) ?
Or maybe ( i confess i dunno all the tips and tricks of blender ) i’m missing someting ? a parameter somewhere ?
I also have to mention, that flipping the normals of those faces, give a more correct unwrap. Though perpendicular-in-3D edges are not unwrapped to perpendicular-in-2D UV edges, at least it unwraps the last two faces on the
correct side of the two first ones…
Any clue would really be appreciated
EDIT: Of course, changing all the parameters in the Tool param window does not solve the problem.