Animating 3D Motion
Finally, you’ll add a title and animate it in 3D space. Animating in 3D presents the added complication of a third (z) axis. When you choose the 3D Rotation or 3D Translation tool, you need to be aware of the Global Transform option at the bottom of the Tools panel. (The tools and the Global Transform option were introduced in the previous lesson, in “Positioning in 3D Space.”) Global Transform toggles between a global option (button depressed) and a local option (button raised). Moving an object with the global option selected makes the transformation relative to the global coordinate system, whereas moving an object with the local option on makes the transformation relative to itself.
Click Scene 1 in the Edit bar to return to the main Timeline. Insert a new layer at the top of the layer stack and rename it title.
Lock all the other layers.
Insert a new keyframe at frame 120.
Drag the movie clip symbol called movietitle from the Library panel onto the Stage.
The movietitle instance appears in your new layer in the keyframe at frame 120.
Position the title in the empty sky at x=180 and y=90.
Right-click the movie title and choose Create Motion Tween.
Animate converts the current layer to a tween layer so you can begin to animate the instance.
Move the red playhead to frame 140.
Select the 3D Rotation tool .
The 3D rotation control appears on the selected movie clip.
Deselect the Global Transform option at the bottom of the Tools panel to put the 3D Rotation tool into local mode.
Drag downward on the green Y control to rotate the title around the y axis to angle it so that it seems to recede into the distance. Its angle is at about –50 degrees. You can check the rotation values in the Transform panel (Window > Transform).
Move the red playhead to the first keyframe at frame 120.
Drag upward on the Y control to rotate the title around the y axis in the opposite direction so that the instance looks like just a sliver.
The change in the 3D rotation becomes a motion tween, so the title appears to swing in three dimensions.