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618Final Cut Pro User Guide
3. Apply a mask to the connected clip.
Tip: To get a better view of your mask as you create it, you can temporarily disable
the other clip by selecting it and pressing V. To reenable the clip, press V again.
4. Apply a mask to the original clip.
The two mask shapes are effectively merged.
5. To add any additional masks, repeat steps 2 and 3.
Edit complex masks
Intro to editing complex masks in Final Cut Pro
Complex masks are defined by Bezier splines and B-Splines, which are built with control
points. Each control point in a complex mask defines some sort of corner or curve, and
the actual spline that makes up the shape connects these control points together like a
connect-the-dots drawing. The control points determine the shape and curvature of the
spline.
You can modify a spline by dragging its control points and adjusting the tangent handles
attached to each control point. You can transform multiple control points simultaneously,
and you can add, delete, and lock control points.