[Travis Stowell]

just using the basic motion tracking, tracking position and size with a null object, then parenting the crack and solid with masks with the null aswell.

here is the original:
https://reels.creativecow.net/film/example-1

here is the edited version:
https://reels.creativecow.net/film/example-2

here is my timeline:
https://www.filz.us/files/cf51f8b0/b18/Untitled.jpg

[Travis Stowell]

So, here’s a Screen Shot of what i have after following your instructions, you’ll notice that i have two layers called “Final 1” which are the same clip, except for one is offset to give a proper broken glass effect.

I’ve created a simple shape for a mask to test it, and you’ll notice that all that does is create a null mask that doesn’t do anything. when i turn the visible view off of the top “Final_1”, the shape turns gray (which is the color of my solid)

maybe i’ve done it wrong?

[Travis Stowell]

so i can understand all of what you’re saying except for “using the solid as an alpha matte for the footage”
if you mean track matting, i’ve done it and it’s not quite what i’m looking for, but i feel like i’m close.