Maniphest T60408

Extruded vertex from subdivion surface shows edge incorrectly in viewport
Closed, Resolved
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Assigned To
Sergey Sharybin (sergey)
Authored By
Daniel queen (crono782)
Jan 10 2019, 10:56 PM
Tags
  • BF Blender
Subscribers
Daniel queen (crono782)
Jacques Lucke (JacquesLucke)
Martin Capitanio (capnm)
Sergey Sharybin (sergey)
Tsvetelin Lyubenov (rendetto)

Description

System Information
Operating system: Ubuntu 18.04
Graphics card: nvidia gt650m

Blender Version
Broken: version: 2.80 (sub 40), branch: blender2.7, commit date: 2019-01-08 23:33, hash: 3c3d80ea22af, type: Release
Worked: 2.79b

Extruded vertex from subdivided mesh (with shrinkwrap modifier + edit cage) shows many vertices instead of extruded one. Distortion in edge plus vertex extruded from. Seen in retopology workflows.

Reproduction:
Create simple sculpted mesh to retop over.
Create plane, enable snap to face, project + align.
Add subD modifier (3 levels in view), add shrinkwrap modifier, pick sculpt, above surface, offset .01
Align plane over sculpt as in retop workflow.
Extrude vertex, edge shows weirdness.

(pushing through and creating full face, corrects error. unfinished faces all show error.

Included .blend file. easier to see than explain. also side by side screenshot (left side = 2.79, right = 2.8).

retop_bug2.blend1 MBDownload

Revisions and Commits

rB Blender
rBc4be1f861b39 Fix T60408: Loose edge distort vertex on a surface

Related Objects

Mentioned Here
rB9abcf56fa88d: Enable OpenSubdiv modifier by default

Event Timeline

Daniel queen (crono782) created this task.Jan 10 2019, 10:56 PM
Daniel queen (crono782) updated the task description.
Daniel queen (crono782) updated the task description.
Jacques Lucke (JacquesLucke) added subscribers: Sergey Sharybin (sergey), Jacques Lucke (JacquesLucke).Jan 11 2019, 11:40 AM

subdiv edge.blend448 KBDownload

Not sure why multiple vertices are showing, still checking that.

Jacques Lucke (JacquesLucke) lowered the priority of this task from 90 to 50.Jan 11 2019, 11:44 AM
Martin Capitanio (capnm) added a subscriber: Martin Capitanio (capnm).Jan 11 2019, 10:31 PM

It's broken since switching to OpenSubdiv (rB9abcf56fa88dd)

Jacques Lucke (JacquesLucke) assigned this task to Sergey Sharybin (sergey).Jan 16 2019, 3:13 PM
Jacques Lucke (JacquesLucke) merged a task: T60562: Yet another SDS related bug(s). Vertex extrude results in a bad looking mesh when using the Subdivision modifier..
Jacques Lucke (JacquesLucke) added a subscriber: Tsvetelin Lyubenov (rendetto).
Sergey Sharybin (sergey) changed the task status from Unknown Status to Resolved by committing rBc4be1f861b39: Fix T60408: Loose edge distort vertex on a surface.Jan 24 2019, 12:15 PM
Sergey Sharybin (sergey) added a commit: rBc4be1f861b39: Fix T60408: Loose edge distort vertex on a surface.