Apple Motion 5.1.1 - Manual (Page 94)

Chapter 2 Introduction to the Motion interface 94
Animation menu options
At the far right of the parameter list, the Animation menu controls animation and keyframing
attributes for a given parameter. To open the menu, place the pointer over the column (in the
row of the parameter to modify). When the downward arrow appears, click it to open the pop-up
menu, which contains the following items:
•
Enable/Disable Animation: Enables or disables keyframes for the parameter. This menu item is
unavailable until keyframes are applied to the parameter. When the parameter is animated, the
menu item is renamed to Disable Animation. Choosing Disable Animation hides the keyframes
you have set, restoring the parameter to its default value. However, the keyframes are not
discarded. Choosing Enable Animation restores the parameter to its last keyframed state.
•
Reset Parameter: Removes keyframes and settings for this parameter. The parameter value is
restored to its default value.
•
Add Keyframe: Adds a keyframe at the current frame. If the playhead is positioned on a frame
where a keyframe has been added, this menu item is unavailable. A keyframe is automatically
added to the last modified parameter of the object (regardless of the status of the Record
button) at the current playhead position.
•
Delete Keyframe: Deletes the current keyframe. The Delete Keyframe command is only available
if the playhead is positioned on a frame where a keyframe exists. You can also Control-click a
keyframe and choose Delete from the shortcut menu, or select the keyframe and press Delete.
•
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. 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. You can also press Shift-K to
advance to the next keyframe.
•
Interpolation: Sets the type of curve for the parameter by applying values between keyframes.
This is called interpolation. See the table in
Set curve interpolation on page 474 for examples of
interpolation methods.
•
Before First Keyframe: Defines the animation before the first keyframe of a parameter. This is
called extrapolation. For examples of extrapolation methods, see
Set curve extrapolation on
page 478.
•
After Last Keyframe: Defines the animation after the last keyframe of a parameter, by applying
extrapolation. For examples of extrapolation methods, see
Set curve extrapolation on
page 478.
•
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 selected parameter to reduce
the number of keyframes while attempting to maintain a similar curve shape. For more
information, see
Keyframe thinning on page 484.
•
Curve Snapshot: Reverts keyframe changes made in the selected curve to the most recent
snapshot. This menu item is available only when the Take/Show Curve Snapshot button is
enabled. For more information, see
Additional Keyframe Editor controls on page 95 and Curve
snapshots on page 472.
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