Adobe Premiere Pro CS4 - Manual (Page 423)

417 USING ADOBE PREMIERE PRO CS4
Compositing
Last updated 11/6/2011
Specify clip opacity in the Effect Controls panel
You can adjust opacity for a clip in the Effect Controls panel using the same method you would use to set any other
effect property. However, it may be simpler sometimes to adjust these effects in a Timeline panel.
1 Select a clip in a Timeline panel.
2 In the Effect Controls panel, click the triangle next to the Opacity effect to expand its settings.
3 (Optional) If you’re animating the Opacity effect over time, click the Toggle Animation icon and make sure the
current-time indicator is at the time you want in the Effect Controls timeline.
4 Do one of the following:
• Enter a new opacity value.
• Click the triangle next to the Toggle Animation icon to expand the settings controls and drag the Opacity slider.
If you click the Toggle Animation icon in step 3, a keyframe is created in the Effect Controls timeline where the
current-time indicator is positioned.
5 (Optional) If you are animating the clip opacity over time, move the current-time indicator and do any of the
following to make an adjustment:
• Enter a value for the setting.
• Drag the Opacity slider to specify a value.
When you make the adjustment, a new keyframe and a graph representing the adjustment appear in the Effect
Controls timeline. You can make further adjustments by entering a value, dragging the Opacity slider, or dragging an
Opacity handle on the graph. You can also adjust the interpolation between keyframes by editing the keyframe graph.
Repeat step 5 as needed.
Specify clip opacity in a Timeline panel
1 Expand the view of a track, if necessary, by clicking the triangle next to the track name to expand its options.
2 If necessary, click the Show Keyframes button , or the Hide Keyframes button , and choose Show Opacity
Handles from the menu. A horizontal opacity control rubber band appears in all the clips of the track.
Note: If no keyframes exist on the track, the rubber band appears as a straight horizontal line across the entire track.
3 In a Timeline panel, do one of the following:
• Select the Selection tool, and drag the opacity control rubber band up or down.
• Select the Pen tool, and drag the opacity control rubber band up or down.
The opacity value and current time appear as a tool tip as you drag.
4 (Optional) To animate the Opacity effect over time, first set keyframes. Select the Pen tool. Ctrl-click (Windows)
or Command-click (Mac OS) on the opacity control rubber band with the Pen tool wherever you want to set a
keyframe. Then drag each keyframe up or down to set its value. For example, to fade a clip in, create a keyframe at
the beginning of the clip and another a few seconds later. Drag the first down to the bottom of the clip at 0 opacity.
Drag the second up to 100%.
You can use either the Selection tool or the Pen tool to move keyframes or Opacity handles. To adjust the smoothness
of the animation change the keyframe interpolation from linear to Bezier.