Hi there, I'm working on a whiteboard explainer video. I have a AE precomp with several hand photos holding a marker, and I'd like it to swap between frames depending on which direction it's travelling. I have photos for a neutral position, plus up, down, left and right (fairly subtle shifts in the hand so that it looks pretty natural). So, if it's travelling left, it'd go to frame 1, etc. Ideally it it's moving too slow, it would just go to the neutral pose, but that's not really necessary. Not sure if any of this is possible or not?
I assume it would need to evaluate which direction the precomp is travelling fastest in, as it will likely never be moving JUST vertically or horizontally. So, if it's going faster in negative X than negative or positive Y, it'd go to frame 1 (left pose).