Check out the tutorial for using the loop expression in After Effects for animated properties here.
David Torno writes: Looping is a very common task in our industry and is mostly associated with video footage of some form. In this episode I will explain the loopOut(), loopIn(), loopOutDuration(), and the loopInDuration() expressions. We’ll learn how they function with video footage as well as how they can work when applied to animated properties.
