I have an empty object at the moment representing a planet following the path of an ellipse using the follow path animation constraint. I want the empty to be faster at one end, slower at the other end. Effectively faking the velocity of a satellite orbiting a planet in an ellipse.
How do I go about doing this from the point of just a follow path animation. I tried baking the animation 1 frame at a time, and then stretching the points in the dope editor, and stretching the f-curves, neither worked, they either skip oddly, in case of dope, or the orbits become malformed from the f-curve.