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516 Chapter 6 Keyframes and Curves
Once you get the hang of how it works, you can use this method to enhance and
control the effects of behaviors. For example, you could apply a Gravity behavior which
causes an object to fall toward the bottom of the frame, but keyframe the object’s
position to move across the screen from left to right. In this way, you can create the
effect of the object falling as it moves. Or you might apply a Fade In/Fade Out behavior,
but use keyframes on the object’s Opacity parameter to limit the maximum opacity to
80%. The clip would still fade in and out and you could continue to modify the
behavior’s attributes, but the object would never exceed the opacity value set by the
keyframes.
One method for handling behaviors and keyframes is to convert behaviors to
keyframes. For more information on converting behaviors to keyframes, see
“Converting Behaviors to Keyframes” on page 404.
Animating Using the Inspector
Although you can animate many attributes using the HUD, many other parameters are
only accessible in the Inspector. All of the Inspector’s tabs contain keyframeable
parameters. In this way, you can animate the position and shape of a mask, the color
and styles of a text object, or the various options within the generators. The parameters
that are keyframeable depend on which object is selected and which effects have been
applied to that object.
You can animate parameters in the Inspector using the Record button and the mini-
Timeline playhead just like you would animate parameters in the Canvas or HUD.
To animate parameters in the Inspector:
1 Select the object you want to keyframe in the Canvas.
2 Click the Record button (or press A) to turn on keyframe recording.
3 Place the playhead on the frame where you want the effect to begin.
4 Display the Inspector by clicking the tab or rearranging the screen layout to one that
includes the Inspector. For more information on layouts, see “Preset Layouts” on
page 23.