Can I select two points on a rectangle and have them follow a null object's movement? I want one side of several shapes to stay put, and the other side to track an eased movement.
I believe stib has answered this, but as per tomh's comment I'll post a gif anyway to explain. There is probably an even simpler way to do what I'm trying to.
The grey box on the right is swiped right to left with a steep ease curve. The boat graphic needs to scale with the same curve as the X position of the grey box so they move together. Making the first ease is simple, but I had to 'bake' the second curve frame by frame, then smooth it as best I could, but the OCD in me wants the curve to be identical! It also might be useful for future projects.
I thought, if I could make a rectangle where the two left paths are stuck on the far left of the comp, and the two right paths track the movement of the grey box, that this would make my perfect, mask for the scaling boat layer.