> What if one of your points is a programmatic parameter that varies over time? What if you're changing ground level with every iteration? How does the bezier-

> What if one of your points is a programmatic parameter that varies over time? What if you're changing ground level with every iteration? How does the bezier-based editing UI help with that? Check out how After Effects solves this, keyframed and scripted animation shares the same timeline and can reference each other.