Apple Motion 2 Getting Started - Manual (Page 112)

112 Chapter 3 Your No. 2 Pencil
Like the control points on the Canvas animation path, you can modify the tangents of
the keyframes in the Keyframe Editor to adjust the shape of the animation curve. For
more information on working with the Keyframe Editor, see Chapter 6, “Keyframes and
Curves,” in Motion Help.
Recording Keyframes During Playback
Motion can record any changes to an object’s parameters during active playback.
Although this example only shows keyframing the position of an object, you can
record changes in blend mode, opacity, and so on.
To record keyframes during playback:
1 Enable Record (press A).
2 In the transport controls, click the Play button.
3 Move the object in the Canvas.
Keyframes are created for the “motion sketch” path in which the object is moved in the
Canvas.
To display the recorded keyframes:
m Click the Keyframe Editor tab.
Animated is selected by default from the Show menu, and the keyframes are displayed
in the editor.
Setting Recording Options
By default, a keyframe is added to every frame while recording. You can choose to
record fewer keyframes to simplify your animation curves.
Checking Your Selection
Like the in-context Inspector and Dashboards, the parameters displayed in the
Keyframe Editor depend on what objects are selected (when Active or Animated are
selected from the Show menu). If you select one object in the Layers tab, Canvas, or
Timeline, only parameters for that object are accessible in the Keyframe Editor.
To compare curves from multiple objects (for example, to make two separate objects
begin fading in at the same time), you must select both items in the Layers tab or in
another window.
Additionally, you can modify the curves for an entire layer if the layer itself is selected
(rather than the objects within it). Because the layer is the “parent” for all of its
objects, you can view or modify keyframes that affect all of the objects within the
layer as a group.
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