Apple Motion 3 User Manual
Page 99
Chapter 1
Getting to Know Motion
99
 Delete Keyframe: Deletes the current keyframe. The Delete Keyframe command is
only available if the playhead is positioned on a frame where a keyframe already
exists.
Note: You can also Control-click a keyframe and choose Delete from the shortcut
menu, or select the keyframe and press Delete to delete a keyframe.
 Previous Keyframe: Moves the playhead to the previous keyframe for this
parameter. The Previous Keyframe command is only available if a keyframe exists
earlier in the project.
Note: You can also press Option-K to advance to the next keyframe.
 Next Keyframe: Moves the playhead to the next keyframe for this parameter. The
Next Keyframe command is only available if a keyframe exists later in the project.
Note: You can also press Shift-K to advance to the next keyframe.
 Interpolation: Sets the type of curve for the parameter. See the table in “
” on page 545 for examples of the different interpolation methods.
 Before First Keyframe: Defines the animation before the first keyframe of a
parameter. This is called extrapolation.
 After Last Keyframe: Defines the animation after the last keyframe of a parameter.
This is called extrapolation.
Note: For examples of the different extrapolation methods, see “
 Lock/Unlock Parameter: Locks the parameter to prevent changes. When a
parameter is locked, neither keyframes nor curves are adjustable.
 Reduce Keyframes: Applies a “thinning” algorithm to the keyframes for the selected
parameter. This reduces the number of keyframes in a parameter while attempting to
maintain a similar curve shape. For more information on keyframe thinning, see
“
 Set to Curve Snapshot: If “Take/Show curve snapshot” is turned on, this option
reverts any keyframe changes made in the currently selected curve back to the most
recent snapshot. For more information, see “