X

634Final Cut Pro User Guide
This is what the final composite looks like over a background clip.
Use a clip with an alpha channel
1. Position the playhead in the Final Cut Pro timeline where you want to add the alpha
channel clip.
2. Select the clip with the alpha channel in the browser, then choose Edit > Connect to
Primary Storyline (or press Q).
3. To see the composited clips, position the playhead within the clip that was just added
above the primary storyline.
The clip is composited over the primary storyline video clip, with the alpha channel
controlling the opacity of its clip.
You can also use the Opacity adjustment’s fade handles to dissolve the foreground clip on
and off. See
Use Compositing settings in Final Cut Pro.