User Guide

219
ADOBE AFTER EFFECTS 5.0
User Guide
Extending the influence of an ease handle
Along with controlling the level of acceleration and deceleration, you can also extend the
influence of a keyframe outward or inward in relation to an adjacent keyframe. Influence
determines how quickly the Speed graph reaches the speed you set at the keyframe, giving
you an additional degree of control over the shape of the graph.
As you adjust an ease handle, the effects of the change are visible in the Speed graph and
in the motion path in the Composition window.
To adjust the influence of an ease handle on the previous or next keyframe:
1 In the Timeline window, expand the outline for the keyframe you want to adjust. Then
click the triangle to the left of the property to display the Speed graph or the Velocity graph.
2 At the desired keyframe, drag the ease handle left or right.
Changing speed numerically
You may want to specify speed more precisely than you can by dragging ease handles. In
such cases, specify speed numerically in the Keyframe Velocity dialog box.
The exact options available in the dialog box vary depending on the layer property you are
editing, and may also vary for plug-in effects. For each, speed is expressed as follows:
Anchor Point and Position Pixels per second.
Mask Shape Units per second.
Mask Feather Pixels per second for both the x (horizontal) and y (vertical) dimensions.
Scale Percent per second for both the x (horizontal) and y (vertical) dimensions.
Rotation Degrees per second.
Opacity Percent per second.
To specify speed numerically:
1 Display the Speed graph for the keyframe you want to adjust.
2 Select the keyframe you want to edit.
3 Choose Animation > Keyframe Velocity.
4 Type values for Incoming and Outgoing Velocity Speed.
UG.book Page 219 Wednesday, February 21, 2001 12:05 PM