I'm trying to have a ball 'roll' down a hill for an infinite amount of time, I have the ball rolling and rotating on the ground, and I've used Motion Tile on the ground to stretch it. But to create the idea of motion, I need to move the ground backwards, and eventually I run out of ground layer, because Motion tile won't continue on forever. What should I be doing? Do I create a loop of the ground in a precomp? Or is there an easier way to do this... Thanks for any input!