Really hoped to find a plain implementation, too

[Pomax]

I've spent two days on google trying to find even a single decent implementation of B-splines that isn't either hardcoded, or doesn't actually connect all the control points (starting the curve away from the first control point instead of at the first control point, and ending short, too).

then I found your code, but unfortunately instead of a generic implementation, it's also hardcoded only for a handful of orders... I know it's been 2 years, but would you consider adding the slower, generic "works for any order you need" function as well, that properly draw the connected curve from the first to the last control point? =(