Apple Motion 5.1.1 - Manual (Page 324)

Chapter 9 Behaviors 324
3 Move the playhead to the position where you want to create a keyframe, then enter a value in
the Custom Speed field.
For example, a value of 90 moves the object 90 percent of the way through the motion path.
4 Continue moving the playhead and adding keyframes to obtain the result you want.
Note: If you change the Speed parameter to a preset (such as Constant) after creating a custom
speed, the custom velocity channel is ignored but remains intact.
Adjust a motion path in 3D space
The easiest way to modify a motion path in 3D space is to add a camera to your project and
manipulate the path in a modified camera view.
1 If there is no camera in your project, add a camera by doing one of the following:
•
Click the New Camera button in the toolbar.
•
Choose Object > New Camera (or press Option-Command-C).
Note: If none of your project groups are set to 3D, a dialog appears asking if you want
to switch your 2D groups to 3D groups. Click Switch to 3D to allow the camera to affect
the groups.
2 Do one of the following:
•
Choose a camera view from the Camera pop-up menu in the upper-left corner of the Canvas
(the default option is Active Camera). This example uses the Top view.
•
With the Active Camera (or other) view selected, use the Orbit tool (the center tool in 3D View
tools in the upper-right corner of the Canvas) to rotate the camera.
Note: If you use the 3D View tools with any camera selected, you are moving the camera, not
just changing the camera view.
Depending on the camera view, the object on the path might not be visible. For example, if
the object has not been rotated in X or Y space and you are working in Top view, the camera is
looking down perpendicularly (on the Y axis) on the object. The motion path and its points are
still visible (as long as the Motion Path behavior is selected).
In the following image, the motion path appears flat when viewed from above—the affected
object only moves in X and Y space.
67% resize factor