User Guide

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ADOBE AFTER EFFECTS 5.0
User Guide
To smooth motion over several keyframes:
1 In the Timeline window, set up the keyframes for the motion you will smooth. See
“Setting layer position” on page 171.
2 Determine the beginning and ending keyframes for the range you want to smooth.
3 Do one of the following:
• For every keyframe in the range (except the beginning and ending keyframes), deselect
the roving-keyframe option directly below the keyframe. The intermediate keyframes
adjust their positions on the timeline to smooth the speed curve between the beginning
and ending keyframes.
When you deselect the roving-keyframe option (left), the keyframe may shift to smooth the motion (right).
• Select the keyframes you want to rove and choose Animation > Keyframe Interpolation.
Then choose Rove Across Time from the Roving pop-up menu.
To change a roving keyframe back to a nonroving keyframe:
Do one of the following:
• Select the roving keyframe option, or drag the roving keyframe left or right.
• Select the keyframes you want to change and choose Animation > Keyframe Interpo-
lation. Then choose Lock to Time from the Roving pop-up menu.
Automatically easing speed using the Easy Ease keyframe assistant
Eliminate sudden changes in a property’s speed using the Easy Ease keyframe assistant.
Although you can manually adjust the speed of a keyframe by dragging ease handles, using
Easy Ease automates the work.
UG.book Page 221 Wednesday, February 21, 2001 12:05 PM