Convert to Bezier
Bezier interpolation is the most flexible, allowing manual modification of the curve. Motion
lets you convert any keyframe into a Bezier keyframe.
To convert a keyframe into a Bezier keyframe
While holding down the Command key, drag the keyframe in the keyframe graph.
Bezier handles appear and your mouse movement controls one of the handles.
Note: Command-clicking a Bezier point resets it to Linear interpolation.
To simultaneously modify the handles for more than one control point, Shift-click to select
multiple points, then adjust the tangents. If there are no tangents on the point, drag it
while holding down the Command key.
To adjust tangents of a control point
Hold down the Option key and drag a tangent to adjust it independently of the other.
Hold down the Option key while dragging the handle of a control point with broken
handles to lock them together again.
Control-click a tangent’s handle, then choose Link tangent to constrain one broken
tangent to another so both move together.
Control-click a tangent’s handle, thenchoose Align Tangents to line both tangents up
Keyframes and Curves
To constrain a handle’s angle to 45-degree increments
While holding down the Shift key, drag the handle.