Apple Motion 5.1.1 User Manual
Page 87
Chapter 2
Introduction to the Motion interface
87
Timeline track area
The main part of the Timeline, to the right of the Timeline layers list, is called the track area.
Each object in a project is represented by a colored bar (known as a timebar). Different colors
represent different types of objects. For example, behaviors and filters are purple and masks are
gray. For a complete table of colors, see
on page 253.
When a group containing more than one object is selected, the group track displays an indicator
that identifies how many objects reside in that group. Layers, cameras, and lights are counted in
that total. Effects such as masks, behaviors, and filters are not counted.
Add objects to the Timeline
You can add items to your project by dragging them from the Library or File Browser to
the Timeline.
Add an item to the Timeline
1
Drag an object from the File Browser or Library to the Timeline track area.
As you drag in the track area, a tooltip appears at the pointer to tell you the frame number.
2
When you reach the frame where you want the layer to start, position the pointer over the layer
you want as the background, and hold down the mouse button until the drop menu appears.
3
Choose an option from the drop menu:
•
Choose Composite to add the item to the project in the active group.
•
Choose Insert to push the existing track forward in time to make room for the new item.
•
Choose Overwrite to replace the existing object with the new object.
•
Choose Exchange to exchange an object using the original object’s duration. This option is
only available when you exchange the same type of media (such as a QuickTime movie or
image sequence).
For more information on using the drop menu, see
Add objects to the Timeline overview
on
page 260.
For more information about moving, trimming, slipping, or retiming objects, see
on page 267.
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