User Guide > Animation > Animation > Keyframe Animation > Edit curves > 
Set rotation interpolation for curves
 
 
 

To set rotation interpolation for new curves

  1. Select Window > Settings/Preferences > Preferences and select the Animation category under Settings.
  2. Under Rotation Interpolation, set New Curve Default.

To change rotation interpolation in existing curves

  1. In the Graph Editor or Dope Sheet, select the curve whose rotation interpolation you want to change.

    You can change the rotation interpolation type only on rotation channels that have keyframes on all three channels (rotateX, rotateY, rotateZ). In addition, because the rotateX, rotateY and rotateZ channels always share the same interpolation type, changing interpolation for a single channel such as rotateX, will automatically change rotateY and rotateZ as well.

  2. In the Graph Editor or Dope sheet, select one of the interpolation types from the Curves > Change Rotation Interp menu. See Change Rotation Interp.

Example

To change the Euler interpolated rotation curves of a sphere to Quaternion interpolation

  1. Select the sphere that has animated rotation curves with Independent Euler interpolation. For this example, the Euler rotation animation occurs from frames 1-200 (0 to 1020 degrees).
  2. Select Window > Animation Editors > Graph Editor.

    The Graph Editor appears.

  3. Select the sphere’s rotation curves.
  4. In the Graph Editor’s menu bar, select Curves > Change Rotation Interp > Synchronized Quaternion.

    The rotation interpolation of the selected curves changes to Quaternion.

    NoteIf you switch the rotation curves back to Independent Euler, the curves will not return to what they were when they were Euler. Instead, the resulting curves will be the Euler versions of the Quaternion solution. Since Quaternions solve for the shortest solution to a position, the multiple rotations that existed with the original Euler interpolation were deleted when you switched to Quaternion. Therefore, switching back to Euler doesn't return the rotations to 1020,1020,1020, it returns the curves to the Euler equivalent of the Quaternion solution (which in this example is 60, 60, 60).
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