I need this math because I want to use something similar in a VST plugin I'm making.
So what I can gather, there's a starting point, ending point, and some kind of "tension" value ranging from -1 to 1 (high to low), but I can't really find any curve that fits FL's behavior.
Also, I was thinking the middle point is calculated after the calculation of the curve, rather than the curve being based on the actual tension position (since the cursor is hidden and the curve doesn't move as fast when you're dragging the mouse).
Any help or hints would be greatly appreciated!
(I hope this is the right forum to post this, too.. 
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