Antialiasing is a function of the rendering engine. I know of no way to turn it off but you can use a more restrictive codec or you can use a grid-style or mosaic filter that has adjustable thresholds. That is, you can have a grid element that is either on or off but it can't be gray.
In After Effects, I'd probably use Ball Action. See the AE tutorials for the Jumbotron effect for some guidance there. Might give you an idea of how you can do this in Motion.
Hope you get better advice.
This is my standard sigfile so do not take it personally: "For crying out loud, read the freakin' manual."
"Antialiasing is a function of the rendering engine."
I was of this answer... a post compositing filter hack will not cut it for me.
now firing up in booth camp and loading Digital Fusion to the rescue :-(
thanks for the help