How to Use The Rigid Mask Tracker in AE

Hey guys, this is a nice tracking technique and not a lot of tutorials talk about it. It's called rigid masking. You basically create a mask around a moving object in the scene, select the mask and track it. The mask will move, rotate and expand. You can then add effects inside or outsite the mask.

Hope you'll find this useful: https://www.youtube.com/watch?v=-3bjc7qaUEU