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Maniphest T58925

Blender 2.8 BETA, Unwrapping meshes with ngons give bad results
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Description

System Information
Windows 10, 64 bit, GeForce GTX 1060

Blender Version
Blender 2.80 (sub 35), branch: blender2.8, hash: 74db65e5424

Short description of error
This bug was in 2.79 and was fixed, but it seems that is in 2.8 Beta too .
Unwrap Error StarTestBlender28.blend show how bad it is.

Exact steps for others to reproduce the error
To reproduce this, just select all faces in the image then do an Unwrap ( any setting it's the same ). It's the same bug like in 2.79 that was fixed in there, but in 2.8 Beta wasn't fixed .

StarTestBlender28.blend467 KBDownload

Related Objects

Event Timeline

Catalin (giakaama) created this task.Dec 7 2018, 12:06 PM
Brecht Van Lommel (brecht) lowered the priority of this task from 90 to 50.Dec 7 2018, 12:29 PM
Brecht Van Lommel (brecht) added a subscriber: Brecht Van Lommel (brecht).

Confirmed. Not sure what happened, the code appears to be the same.

Brecht Van Lommel (brecht) added a comment.Dec 7 2018, 2:12 PM

Actually I think the unwrapped result is ok, but the ngons are drawn with poor tessellation in the UV editor.

Catalin (giakaama) added a comment.Dec 7 2018, 2:23 PM

The thing is that. I'm trying to bake a texture from one model to the other. And in Blender 2.79 works flawlessly after you implemented the uv ngon code .
But when I try to do that in 2.8 the bake it's broken by the tessellation errors .
Here is 2.8

Here is in Blender 2.79

Bake diffuse from one model to the other .

Brecht Van Lommel (brecht) edited projects, added BF Blender; removed BF Blender: 2.8.Dec 11 2018, 3:08 PM
Catalin (giakaama) added a comment.Dec 12 2018, 12:32 PM

Any news on this bug ?

Dalai Felinto (dfelinto) added a project: Tracker Curfew.Dec 23 2019, 4:35 PM
Germano Cavalcante (mano-wii) closed this task as Resolved.Jan 17 2020, 4:38 PM
Germano Cavalcante (mano-wii) claimed this task.
Germano Cavalcante (mano-wii) edited projects, added Modeling; removed Tracker Curfew.
Germano Cavalcante (mano-wii) added a subscriber: Germano Cavalcante (mano-wii).

I reproduced this bug in blender 2.79b, but not the latest daily build, so it appears the bug has been fixed already.

Please try the latest daily build: https://builder.blender.org/download/