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Shape key editing on bezier objects broken with Rendered Viewport Shading
Closed, ResolvedPublic


System Information
macOS Sierra 10.12.1

Blender Version
Broken: 2.78 e8299c8

Short description of error
Editing a shape key on a bezier while one of the viewports is in Rendered shading mode makes the points jump to extreme/random positions (usually the object origin).

This happens for both Blender Internal and Cycles.

Exact steps for others to reproduce the error

  • New project
  • Delete all
  • add bezier circle
  • add shape key Basis
  • add another shape key (Key 1)
  • split 3D viewport in two
  • change one viewport to Rendered shading mode
  • select Key 1 shape key
  • enter edit mode for the bezier curve
  • move/scale/rotate any/all of the points

Event Timeline

Bastien Montagne (mont29) lowered the priority of this task from 90 to 50.

Confirmed, probably related to T50614, though fix for that one (rB6f1493f68fe) does not fix issue reported here.

SKey for curves was really, really badly broken. :(