Chapter: Compositing Tools and Techniques
Topic: Masking or Rotoscoping
There’s more to splines than simple image extraction. Sure they’re great for cutting mattes, but mask data in After Effects is based on Bezier paths that contain specific values which can be used for more than alpha channels. In this tutorial, we take a quick look at “lifting” the shape data for use in less obvious tasks, including position keyframing.
TAGS: spline, outline, separate, mask, isolate, extract, path