ADOBE PREMIERE PRO 2.0
User Guide
243
Auto Bezier
Creates a smooth rate of change through a keyframe. As you change a keyframe’s value, the Auto Bezier
direction handles change to maintain a smooth transition between keyframes.
Continuous Bezier
Creates a smooth rate of change through a keyframe. However, unlike the Auto Bezier interpo-
lation method, Continuous Bezier lets you adjust direction handles manually. As you change the shape of a graph on
one side of a keyframe, the shape on the other side of the keyframe changes to maintain a smooth transition.
Hold
Changes a property value without gradual transition (sudden effect changes). The graph following a keyframe
with the Hold interpolation applied appears as a horizontal straight line.
Ease In
Slows down the value changes entering a keyframe.
Ease Out
Gradually accelerates the value changes leaving a keyframe.
Note:
Although interpolation methods can vary the rate at which a property changes between keyframes, they cannot
change the actual duration between keyframes. Duration is determined by the time (or distance in the time ruler)
between keyframes.
Keyframe interpolation methods
A.
Normal In/Out
B.
Bezier/Continuous Bezier/Ease In/Ease Out
C.
Auto Bezier
D.
Hold
See also
“About interpolation” on page 242
Controlling change using Bezier keyframe interpolation
Bezier handles are two-directional controls that change the curve of the line segment between the handle and the
next point on either side. The farther you pull a handle from its vertex (center point), the more it bends or curves.
The curve that you create by dragging the Bezier handle determines how smoothly the effect and motion changes
occur as the animation parameter enters and exits a keyframe. These handles offer you more control over animation
changes than simply choosing a keyframe interpolation method. You can manipulate Bezier handles in either the
Timeline panel, the Effect Controls panel, or the Program Monitor.
To create Bezier keyframes
1
In the Timeline panel, select the clip containing the keyframes you want to adjust, and then do one of the
following:
•
(Timeline panel) Choose the property you want to adjust from the effect pop-up menu next to the clip or track
name. You adjust the temporal interpolation of a property in the Timeline panel. Select the clip in the Program
Monitor if you want to change the spatial interpolation there.
•
(Effect Controls panel) Select an effect property’s keyframe markers for the keyframes you want to adjust.
2
Do one of the following to choose a keyframe interpolation method:
•
(Timeline panel) Right-click the keyframe you want to adjust, and choose a keyframe interpolation method from
the menu.
•
(Effect Controls panel) Right-click the keyframe marker for the keyframe you want to adjust, and choose a
keyframe interpolation method from the menu.
A
B
C
D