I posted about this project in a different thread but this is a separate issue so I figured I would start a new thread.
I'm using tracked movement (in my case, facial movements for dialogue) to make nulls, which I then parent puppet pins to. The problem is that I'd love to be able to scale the tracked movements up or down to dial in the amount that my puppet pins move relative to the tracked footage.
Currently I've had to do a lot of trial and error by resizing and then pre-comping my reference footage, then tracking it, so that the movement looks right on the puppet (In other words, I make the face tracking video bigger or smaller to make the tracked movement translate bigger or smaller on my animation). If I finish the animation and it's too big or too small, I have to resize the reference footage and start all over. But I suspect there's a simple expression I could add to my puppet pin pickwhip to scale the null's movement by, say, x2 or x.5.