This has to be possible. Right?
I am trying to create a mask for an animated layer. The animated layer is increasing in scale while changing its position to move off the bottom of the composition. I can create a perfect MASK for that layer, but it moves with the layer. If I could lock the mask, that would be great.
So, instead, I am trying to create a TRACK MATTE. The problem is, I can create the right ellipse to MATTE the animating layer underneath. But, I can't soften it's edges. I've tried adding a glow effect, but it's not enough.
I know this is simple. I've spent 45 minutes trying to do it myself and looking for similar questions/posts... but nothing has helped.