Here, you will find the option that allows you to replace the green background with the footage on the lower track. Position your green screen video on the top video track (V1) of the timeline, ensuring it is the active clip you will be modifying.
Create Green Screen Scenes in iMovie Easily
You need consistent lighting that illuminates the screen evenly without spilling onto your subject, which helps the software distinguish the background from the foreground. A solid green screen background free of wrinkles and shadows is the foundation of a clean key.
Adjusting the "Edge" or "Soften" settings can help blend the subject more naturally into the new background, smoothing the transition and making the composite look professional. Keeping these layers visually separate in the interface makes it easier to manage the composite as you adjust the keying settings.
Create Green Screen Scenes in iMovie Easily
Once you enable the green screen or chroma key feature, the software analyzes the color in the background and makes it transparent. Use the "Color Correction" or keying slider to adjust the range of greens that are removed.
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