Say I am designing a mini-gun. One of the key things it does is spin up, and then continue to spin at a constant rate. I'm having trouble making it look consistent when this transition happens from the 'acceleration' motion to the 'constant speed' motion.
For the sake of round numbers, say I am using a Bezier interpolation from frames 0 - 50, as I want to control the slope of the acceleration. Then, I transition to a linear interpolation from frames 50-100. The problem is that the rotation speed coming out of the bezier curve is awkward, because there is still that easing.
Basically I want it to rev up, then continue at a constant rate (though I'd like control over how long it takes to rev up).
I saw this answer but I don't understand drivers well enough to know if it solves my problem or not.