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Sculpting multi-res has artifacts: grabbing between different levels
Closed, ResolvedPublic

Description

System Information
Debian testing/stable, CentOS 6.3. Nvidia Titan

Blender Version
Broken: 2.71 testbuild2 517094a and older
Worked: (optional)

Short description of error
Weird folds appear after brush-sculpting on the upper layer, step down to some lower level, grabbing (moving) the sculpted part of a mesh and switch the level back and forth.
Exact steps for others to reproduce the error
You can see the bug effect on the monkey's left brow if you switch the level.
How to reproduce on the right brow:

  1. Switch to sculpt level 5
  2. Sculpt some stuff onto the right brow
  3. Switch to level 2
  4. Move the right brow or parts of it up a little bit with the Grab tool, like the left one
  5. Switch back to upper levels

You'll see the nasty folds appear even on the level 2, but not on the most upper level 5.
It's really strange, that it hasn't been found before, since it's a usual technique while sculpting, when you want to adjust the overall shape after adding smaller details. And it's very critical.

Sorry for the archive. The scene was too big to upload, so i reduced sculpting levels to 4 and archived it. You can subdivide it once more.

Details

Type
To Do

Event Timeline

Yegor (Yegor) raised the priority of this task from to Needs Triage by Developer.
Yegor (Yegor) updated the task description. (Show Details)
Yegor (Yegor) added a project: BF Blender.
Yegor (Yegor) set Type to Bug.
Yegor (Yegor) added a subscriber: Yegor (Yegor).
Antony Riakiotakis (psy-fi) lowered the priority of this task from Needs Triage by Developer to Confirmed, Low.Jun 3 2014, 1:51 AM

This is a known limitation (that has to be solved of course). A workaround for now is to use "Apply Base"

Antony Riakiotakis (psy-fi) raised the priority of this task from Confirmed, Low to Normal.Aug 27 2014, 6:07 PM
Antony Riakiotakis (psy-fi) triaged this task as Confirmed, Low priority.

hmm, not sure this should even be considered as a bug... isn't that more a limitation/todo?

Campbell Barton (campbellbarton) renamed this task from Sculpting critical bug. to Sculpting multi-res has artifacts: grabbing between different levels.Mar 9 2015, 4:45 AM
Campbell Barton (campbellbarton) raised the priority of this task from Confirmed, Low to Confirmed, Medium.Mar 9 2015, 4:48 AM
Campbell Barton (campbellbarton) changed Type from Bug to To Do.
Joey Ferwerda (TheOnlyJoey) claimed this task.

I think this TODO has been finished or removed, will report resolved, please re-open if this still occurs.

It still occurs, but Apply Base solves it. I think it should be marked as a todo.