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397Final Cut Pro User Guide
Animate an effect shape mask in Final Cut Pro
You can use keyframes to animate an effect shape mask so that it follows the movement of
an onscreen object.
1. In Final Cut Pro, add a shape mask to a video effect.
2. In the timeline, move the playhead to the frame where you want the shape to begin
moving.
3. In the viewer, position the shape mask at its starting position.
4. If the Video inspector isn’t already open, do one of the following:
• Choose Window > Show in Workspace > Inspector (or press Command-4).
• Click the Inspector button in the toolbar.
5. Click the Video button at the top of the inspector.
6. In the Effects section of the Video inspector, click the Keyframe button for the mask you
want to animate.
A keyframe is added at the position of the playhead. To see the keyframe in the
timeline, press Control-V to open the Video Animation editor. The keyframe appears
in the effect’s section of the Video Animation editor as a diamond at the playhead
position.
7. Move the playhead to the next point in the clip where you want to define the shape
mask’s position, reposition the shape mask, and add the second keyframe.
8. Continue adding keyframes until you’ve defined the shape movement you want.