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Chapter 5 Using Behaviors 487
You can also shorten the path by moving its starting point closer to the Canvas.
Note: You can change the shape of the motion path by adding points or by selecting a
preset shape, such as an ellipse or a rectangle. For more information, see “Motion Path”
on page 411.
12 With the duplicated layer selected, click the Add Behavior icon in the Toolbar, then
choose Basic Motion from the pop-up menu and Grow/Shrink from the submenu.
13 In the Behaviors tab, choose Ramp to Final Value from the Grow/Shrink behavior’s
Increment pop-up menu and set Scale To to 125%.
The layer now scales to 125% of its original size, rather than growing indefinitely.
Example 2: Using the Gravity and Edge Collision Simulation Behaviors
Gravity makes an object fall over time at a rate specified in the Acceleration parameter.
Unless other behaviors such as Edge Collision are also applied, the object falls off of the
bottom of the Canvas (or moves beyond the top edge of the Canvas if a negative
Acceleration value is used). In this example, a group comprised of four layers (circles) is
used to illustrate the Gravity and Edge Collision behaviors.
Note: Although you can apply the Simulation behaviors to single objects, their
strength is in using groups of objects. Some Simulation behaviors, such as Vortex,
require the existence of another object in a project to have any effect. For example, an
object with an applied Vortex behavior needs another object to circle around it; an
object with an applied Orbit Around behavior needs an object to orbit around.
This example uses content available in Motion, so, if you want, you can follow along. In
this case, Gravity is applied to a group (“circles 1”) that contains four layers (semi-
transparent, colored circles).
To use the Gravity behavior:
1 Drag the “orangeCircles.psd” file from /Library/Application Support/Final Cut Studio/
Motion/Sample Media/Graphics to the Canvas, holding down the mouse button until
the drop menu appears.
2 Choose Import All Layers from the drop menu.
The imported Photoshop file consists of a single group of four layers, each layer a semi-
transparent, colored circle. Because the Import All Layers command is used on import,
the layers are imported as separate layers within a group.
3 Double-click the “orangeCircles” layer, type “circles1,” then press Return.
The layer is renamed.