Page MenuHome

Bevel modifier breaks shape-key animation
Closed, DuplicatePublic

Description

System Information
Operating system: Ubuntu 18.10
Graphics card: GeForce GTX 1050 Ti

Blender Version
Broken:
blender-2.80-b0dee09a6d55-linux-glibc224-x86_64

Short description of error
When the bevel modifier is on, shape key animations have no effect.

Exact steps for others to reproduce the error

  1. Add a cube and subdivide it 10 times.
  2. Add the base shape-key.
  3. Add a second shape-key with a value of 0 and select it.
  4. In edit mode, use "To Sphere" to make the cube a sphere.
  5. Go back into object mode and observe that adjusting the second shape-key slider between 0 and 1 transitions the shape from cube to sphere.
  6. Keyframe the slider to 0 at frame 1 and keyframe it to 1 at frame 30.
  7. In object mode, observe that moving across the timeline between frames 1 and 30 changes the shape of the cube to a sphere.
  8. Select the base shape-key and set the second shape-key slider value to 0.
  9. Add a bevel modifier.
  10. Select the second shape-key and observe that the shape immediately changes to a sphere despite the aforementioned slider being at 0.
  11. Observe that sliding the slider does nothing.
  12. Observe that nothing happens when you move the timeline.

Details

Type
Bug

Event Timeline

Can you make an example blend file that demonstrates this? Thanks.

you can look here for a test .blend, some other modifier behave the same way : https://developer.blender.org/T60067

William Reynish (billreynish) triaged this task as Confirmed, Medium priority.Jan 20 2019, 6:58 PM

Ok, I can reproduce that.

@Campbell Barton (campbellbarton): Who to assign this to?