How to make Layers React to a Mask in After Effects - Now with Bezier!

This is a very powerful expression that you can use to drive all kinds of very cool effects! Get the expression here: Get The Power of Expression Book here: 00:10: Setting Up the Mask Expression 01:21: Applying Feathering for Falloff 01:40: Multiple Instances with Mask Expression 02:15: Bezier Curve Paths Introduction 02:27: Open Path Compatibility 02:53: Editing Open Paths 03:04: Parenting for more Control 04:09: Manipulating the Mask Expression with Layer Transform Properties 04:25: Time Remapping for Multiple Properties 05:43: Download the Project File #aescripts #aftereffects #thepowerofexpression