[Dave Frizzell]

I tried to search for a thread on this but just didnt find what I was looking for Can anyone help?

New to AE and trying to follow Emanuel Eriksson “Sand” tutorial, which I think is a really neat visual. However, I do not understand what to do on the second comp…

” Create a new solid mask it off and animate its position over about 2 seconds.”

… and not getting the effect that is shown on the tutorial.

https://library.creativecow.net/articles/eriksson_emanuel/sand.php

thanks
Dave