To Change Interpolation Method By Clicking; To Modify Bezier Direction Handles - Adobe AFTER EFFECTS 7.0 Manual

Smooths the rate of change through the selected keyframes by automatically varying their
Rove Across Time
position in time, based on the positions of the keyframes immediately before and after the selection.
keeps the selected keyframes at their current position in time. They stay in place unless you move them
Lock To Time
manually.
For more information on smoothing the rate of change through selected keyframes, see "To smooth motion over
several keyframes" on page 230.

To change interpolation method by clicking

❖
Using the Selection tool, do one of the following:
•
In layer bar mode, if the keyframe uses Linear interpolation, Ctrl-click (Windows) or Command-click (Mac OS)
the keyframe to change it to Auto Bezier
•
In layer bar mode, if the keyframe uses Bezier, Continuous Bezier, or Auto Bezier, Ctrl-click (Windows) or
Command-click (Mac OS) the keyframe to change it to Linear.
•
In the Graph Editor, click the keyframe with the Convert Vertex tool
interpolation.
•
In the Graph Editor, select one or more keyframes, and then click the Hold, Linear, or Auto Bezier button at the
bottom of the screen to change the interpolation method.
Interpolation buttons in the Graph Editor
A. Hold B. Linear C. Auto-Bezier

To modify Bezier direction handles

In the Graph Editor, keyframes that use Bezier interpolation have direction handles attached to them. You can
retract, extend, or rotate the direction handles to fine-tune the Bezier interpolation curve.
Retracting a direction handle makes a tighter, sharper Bezier curve. Extending a direction handle makes a larger,
smoother Bezier curve. By default, when you retract or extend a direction handle, the opposite handle on the
keyframe moves with it. Splitting directional handles makes the two direction handles attached to a keyframe behave
independently.
•
To retract or extend direction handles, drag the direction handle toward or away from the center of its keyframe
with the Selection tool.
•
To split direction handles, Alt-drag (Windows) or Option-drag (Mac OS) a keyframe with the Selection tool. You
can also Alt-drag (Windows) or Option-drag (Mac OS) outside a keyframe to draw new handles, whether or not
there were existing handles.
•
To manipulate the direction handles of two neighboring keyframes simultaneously, drag the value graph segment
between the keyframes.
.
A B C
ADOBE AFTER EFFECTS 7.0
to toggle between linear and Auto Bezier
223
User Guide