I am developing a animation program. I have been able to draw a Bezier curve and sub-divide it into equal length segments. Now speed comes into picture, ie I want to give my user a mechanism to control the
speed(velocity) along a bezier curve. "Adobe After effects" does it in cool way. In AfterEffects the user has to specify velocity and influence
at both ends of the curve. Based on the (velocity-influence) pair, AfterEffects changes the speed along the Bezier curve.
Can anyone please tell me what formula AfterEffects might be using to change the speed along the curve, using only velocity-influence information.
Thanks a lot :)