From the course: After Effects Compositing: 6 Tracking and Stabilization

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Reverse stabilize to put roto in motion

Reverse stabilize to put roto in motion

- [Voiceover] I showed you how to lock the hat element in order to rotoscope it in place. The only difference between where we left that scene and this one here, besides that the roto is now lined up, is that the matte and the locked hat layer are parented to this mysterious layer called Restore Motion. In this lesson, I'm just going to show you how to complete that layer to finish the shot, and to do that, I'm starting by deleting it. So now we're back to having the locked rotoscoped element. So the place to start is to create a null, and this is going to be the most straightforward method to restore motion to the locked element. The null can indeed be called Restore Motion. And if I'm feeling tidy, I can trim it, so that it's the same length as the other layers. Now I'm going to reveal the Anchor Point Stabilization for Hat Lock and copy it. I'm also going to go to the very first keyframe. Under Restore Motion, I'll press P and just to show you, I'll also press shift a. So Anchor…

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