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Viewing Keyframes in the Timeline
When an effect is applied to a clip in the timeline and the tracks are expanded, you can see the keyframe track on a clip in the timeline. In this track, you can set and manipulate the position of keyframes. But keyframes don’t appear automatically. They have to be set in a certain way.
In Figure 10-7, there’s a clip on Video Track 1 and Video Track 2, both with dif-ferent effects applied to them. The clip on Video Track 1 doesn’t have keyframes on it, but the clip on Video Track 2 does.
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| FIGURE 10-7 Keyframe tracks on Video Track 1 and 2 |
In the keyframe track for Video Track 1, there’s a gray horizontal line with a white rectangle at its head and tail. Although you can drag these rectangles on the line, they’re not yet recognized as keyframes. Rather, the effect appears static throughout the duration of the clip.
The clip on Video Track 2 has keyframes. Keyframes appear as diamond icons in the timeline and the clip on Track 2 has a total of four keyframes. When you position the Edit line over a keyframe, the Add/Delete Keyframe box on the left of the track becomes checked, as shown in the previous figure. Also, you can navigate from keyframe to keyframe using the Previous and Next Keyframe arrows. Using these arrows to navigate is much simpler than dragging the Edit line through the timeline.
The other change in the workspace that’s noteworthy when keyframes are applied to clips is that a stopwatch icon appears in the Effect Controls palette (see the illustration). This is the Enable Keyframing icon, which also serves as a reminder that keyframes are present on a track even if the keyframe track is collapsed.
Next, you learn how to create a keyframe on a track.[an error occurred while processing this directive]
Creating Keyframes in the Timeline
Making new keyframes on a clip with effects applied is a little different from the way you add keyframes in the Motion Settings dialog box. This is because you can do it right in the timeline, which makes the process a lot easier. So, let’s review the process of adding new keyframes to a keyframe track.
| To Add KEYFRAMES TO A KEYFRAME TRACK ON A CLIP: | ||
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 | | Click a clip that has an effect(s) applied to it. |
 | Make sure the clip’s track is expanded. | |
 | Drag the Edit line to a place on the clip where you want to create a keyframe. | |
 | Click the Add/Delete Keyframe button to the left of that track. | |
 | A diamond will appear on the gray horizontal line in that spot on the timeline. | |
If you scrub the timeline while pressing ALT (Windows)/OPTION (Mac) and you haven’t changed the parameters of the effects on keyframes, no animation will appear. For example in the previous figure, the Noise effect applied to the clip on Video Track 1, the noise amount on all four keyframes is 25.6 percent. So, when the effect plays, it has the same properties throughout and the effect remains the same in time. So, let’s look at how you can animate keyframes after you create them.
| To Animate KEYFRAMES ON THE KEYFRAME TRACK OF A CLIP: | ||
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| | Select a clip in the timeline with keyframes. |
| Expand the track. | |
| Click a keyframe. You can navigate to the next or previous keyframes using the direc-tional arrow on the track. | |
| In the Effect Controls palette, change the parameters of the effect on that particular keyframe (see Figure 10-8). | |
| Select any additional keyframes and repeat the process. | |
 | While you scrub the timeline, depress ALT (Windows/OPTION (Mac). The effects now change in time, in between keyframes. | |
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| FIGURE 10-8 Animated effects are created in Premiere by changing the parameters of effects on keyframes in the Effect Controls palette |
If you’re changing the parameters on an effect that uses sliders, you might want to type in an exact numerical amount. Sometimes it’s hard to select a specific amount from a slider.
| To Manually INPUT NUMERICAL PARAMETERS OF AN EFFECT IN THE EFFECT CONTROLS PALETTE: | |  | ||
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| | Click a keyframe. | ||
| In the Effect Controls palette, click the number above the slider that’s underlined. This number represents the numerical value of the slider. | |||
| A value dialog box for the effect parameter will appear (see the illustration). | |||
| Type in the value you want to assign to the parameter and click OK. | |||
Let’s review the mechanics of the previous figure. The clip on Video track 1 has an additional keyframe on the keyframe track, for a total of three keyframes. The clip has a Directional Blur applied, taken from the Blur folder in the Effects palette. On the first keyframe, in the Effect Controls palette, the Direction and Blur Length sliders are both set to 0. On the second keyframe, the Direction slider is set to 74.4 degrees and the Blur Length slider is set to 13.9. On the last keyframe, the Direction and Blur sliders return to 0. The result is a dynamic, pulsating radial blur that changes from one extreme to another as the frames move through time.
From the book Adobe Premiere Virtual Classroom by Bonnie Blake
© McGraw-Hill Professional Publishing
Source: McGraw-Hill Professional Publishing
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