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Unwrap UV with "use subdivision modifier" does not work
Closed, ResolvedPublic

Description

OSX 10.6.8 Ati Radeon HD 2400

Broken: 2.76 (6158a98) Blender buildbot and official 2.76 +2.75 releases
Worked: 2.74

If i Unwrap model with "use subdivision modifier" on, it gives unexpected results(single faces are unwrapped

I uploaded also a example blend file : Unwrap the mesh and turn "use sudivision mod."on.

Event Timeline

Hakan Tunc (Tunge) updated the task description. (Show Details)
Hakan Tunc (Tunge) raised the priority of this task from to Needs Triage by Developer.
Hakan Tunc (Tunge) added a project: BF Blender.
Hakan Tunc (Tunge) set Type to Bug.
Bastien Montagne (mont29) renamed this task from Unwrap UV with "use subdivision modifier" to Unwrap UV with "use subdivision modifier" does not work.Oct 18 2015, 3:26 PM
Bastien Montagne (mont29) updated the task description. (Show Details)
Bastien Montagne (mont29) triaged this task as Confirmed, Medium priority.
Bastien Montagne (mont29) removed Antony Riakiotakis (psy-fi) as the assignee of this task.

@Hakan Tunc (Tunge) please do not make wild assignments that way…

@Sergey Sharybin (sergey) @Campbell Barton (campbellbarton) @Antony Riakiotakis (psy-fi) ideas here? Feature works in 2.75, but I can think of several changes in 2.76 that could cause that (subsurf changes themselves of course, OSD, looptris…).

OpenSubdiv integration doesn't have UVs support yet. But other than that it should all work as it used to. Needs some more investigation, don't currenty have time for this tonight. Can have a closer look later.

Campbell Barton (campbellbarton) renamed this task from Unwrap UV with "use subdivision modifier" does not work to Unwrap UV with "use subdivision modifier" does not work w/ OpenSubdiv.Oct 19 2015, 9:43 AM
Bastien Montagne (mont29) renamed this task from Unwrap UV with "use subdivision modifier" does not work w/ OpenSubdiv to Unwrap UV with "use subdivision modifier" does not work.Oct 19 2015, 9:46 AM

@Campbell Barton (campbellbarton) it does not work either without OSD…

Right, looks like issue with it expecting tessface, looking into fix.