2D Shadow

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The illustration below shows some of the relevant parts of this procedure. Note the shadow cast by the

overlay video. This is added by selecting the check box on the keyframe controller. The Video Preview window displays the results.

Tip: While overlay picture-in-picture windows are often completely opaque, you can fade them in and out using opacity envelopes. For more information, see Using opacity envelopes on page 177.

Animating the overlay

You can animate many aspects of an overlay using the keyframes at the bottom of the Track Motion window.

1.Insert a video event onto the timeline.

2.Click the Track Motion button () in the track list.

3.In the Track Motion window, resize the overlay by dragging the handles at the edges of the overlay.

4.Drag the middle of the overlay to position it. This will be the size and position for the start of the animation.

5.Click the timeline of the keyframe controller at a later time to move the cursor to that position.

Tip: With the Sync Cursor button ( ) enabled, you can also navigate to a new position on the main timeline. The cursor is automatically moved on the keyframe controller to the same location.

6.Reposition the overlay. A new keyframe is automatically added to the keyframe controller at the new cursor position.

When you preview the video, the position of the overlay interpolates between the two keyframes with a smooth animation.

ADDING VIDEO TRANSITIONS AND MOTION

CHP. 15