When you create a keyframe, you specify the value of an effect property for a specific
point
in time. When you apply different values to keyframes, Adobe Premiere Pro automatically
calculates the values between the keyframes, a process called
interpolation
. For example,
to create a blur that first increases and then decreases over time, you would need to set
three keyframes for a blur effect—the first with no blur, the second with the maximum
amount of blur, and the third with no blur. Because Adobe Premiere Pro automatically
interpolates the blur values between each keyframe, the blur gradually increases between
the first and second keyframes and then gradually decreases between the second and
third keyframes.
You can set keyframes within the clip’s duration for most Standard effects. You can also
animate clips by setting keyframes for Fixed effect properties, such as Position and Scale
(see “Manipulating a clip in the Program view” on page 252). You can also move, copy, or
delete keyframes and change the interpolation method of a keyframe. The following
sections explain how to view, add, and adjust the value and timing of keyframes as well as
the interpolation method they use. For more information on keyframe interpolation, see
“Working with keyframe interpolation” on page 251.
Note: Some Adobe Premiere Pro effects cannot be animated with keyframes. See the
individual effect for more information.
Highlighted frames indicate where Blur effect keyframes are placed in the timeline. The Blur effect is
interpolated for in-between frames.
Activating keyframes
To animate an effect property, you must activate keyframes for that property. Any effect
property that allows keyframes includes a Toggle Animation button that you use to
activate keyframes. Once keyframes are activated, you can add and adjust as many
keyframes as you need to the property.
Using the Toggle Animation button to activate keyframes for a property
Using Help | Contents | Index Back 246
Adobe Premiere Pro Help Applying Effects
Using Help | Contents | Index Back 246
To activate keyframes for a property:
1
In the Timeline window, select the clip that contains the effect you want to animate.
2
In the Effect Controls window, expand the effect to reveal the property you want to
animate by clicking the triangle next to it.
3
Click the Toggle Animation button next to the property name. A keyframe appears at
the current time.
Adding and deleting keyframes
While you use the Toggle Animation button to activate the keyframing process, you must
use other tools to create additional keyframes. Adobe Premiere Pro creates keyframes
automatically when you change the current time and property value. You can also create
keyframes manually by using the Add/Remove Keyframe button. You must create at least
two keyframes at different values to vary an effect across the timeline.
If you decide that you no longer need a keyframe, you can easily delete it from an effect
property. You can remove all keyframes at once or deactivate keyframes for the effect
property. When you deactivate keyframes with the Toggle Animation button, existing
keyframes are deleted and no new keyframes can be created until you reactivate
keyframes.
To add one ore more keyframes:
1
In the Timeline window, select the clip that contains the effect you want to animate.
2
In the Effect Controls window, expand the effect to which you want to add keyframes.
3
Click the Toggle Animation button to activate keyframes for the effect property.
