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How can I do that? I can generate simple beziers, but how can I generate a closed curve like this:

http://www.youtube.com/watch?feature=endscreen&NR=1&v=hlDYJNEiYvU

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Just Google closed bezier curve, there are plenty of useful results, including one that has a code example It's just like a open bezier curve, but for the "next" point on your last point, you use the first point.

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