There can only be a maximum of 10 control points currently but that can be changed (it's just the way the demo works, sorry.) This can calculate and render any Bézier curve with any number of points (which is why it's called N-order.) Make sure to credit when used, also probably going to use this in future intros :D Here's how it works: https://www.desmos.com/calculator/xlpbe9bgll