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High Order Bezier Curve Walking Study

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I was working on another sketch in which I needed the ability to "walk" along complex curves. I had no idea how to tell where along the curve I was after x amount of time. My understanding of bezier curves was limited to "two anchors and two handles gives you this curve". Obviously I needed to understand bezier curves better. This sketch forced me to learn enough about bezier curves to be able to "walk" along it - in 200 steps. The end effect looked kinda' cool, especially when I blended it. Cool enough that I thought I'd post it. So here it is cleaned up and annotated...
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