Maniphest T68491

Broken Shape Keyes
Closed, Duplicate
Actions

Assigned To
None
Authored By
Nawaf Al-Rawachy (NawafAl-Rawachy)
Aug 10 2019, 3:36 AM
Tags
  • BF Blender
Subscribers
Nawaf Al-Rawachy (NawafAl-Rawachy)
Philipp Oeser (lichtwerk)

Description

System Information
Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 416.34

Blender Version
Broken: version: 2.80 (sub 75), branch: master, commit date: 2019-07-29 14:47, hash: rBf6cb5f54494e
Worked: (optional)

Short description of error
[Shape keyes break when created with the X-Mirror enabled. Any new blank shape key added will already have information when turned to '1.00' when it shouldn't]

Exact steps for others to reproduce the error
[Add a shape key > change shape key value to "1.00" > enter edit mode > turn on X-Mirror and proportional editing with connected "on" > manipulate the geometry (I did move and scale) > add a driver for that shape key > create a custom property from the object tab and have it update the shape key > in the driver editor create a new var and remove it > change the name of your vars > update dependencies > change the name back > update dependencies > now your shape key driver works fine but when adding a new shape key, it'll behave as if it already has information already when turned to 1.00{F7656776} ]
[Based on the default startup or an attached .blend file (as simple as possible)]

Related Objects

Event Timeline

Nawaf Al-Rawachy (NawafAl-Rawachy) created this task.Aug 10 2019, 3:36 AM
Philipp Oeser (lichtwerk) added a subscriber: Philipp Oeser (lichtwerk).Dec 5 2019, 2:06 PM

Similar to T67185: Shape Keys Behaving Like a Duplicate of Previous Key , I assume there have been modeling modifications on the mesh after adding the shapekey(s) that changed vertex count / topology?
(Suzannes eyes look like you've tried getting rid of the triangle fan...)

This only has limited support and can lead to some issues, see the above report as well as https://blender.stackexchange.com/questions/19296/can-i-fix-broken-shape-keys-after-editing-basis.

That being said, you can fix this in you case by:

  • open your file
  • select Suzanne object
  • enter editmode
  • select all vertices
  • select the Basis shapekey
  • from the menus, execute Vertex > Blend from Shape

If I do this, I can create a new shapekey that doesnt seem like a duplicate of the other shapekey...

Will merge this into T67185 [which has been closed for now because it is working as intended (even though this could be improved upon...)]

Philipp Oeser (lichtwerk) closed this task as a duplicate of T67185: Shape Keys Behaving Like a Duplicate of Previous Key .Dec 5 2019, 2:06 PM