About Ribbon: The original image is copied onto a new image, using
the sine of the X or Y value (depending on the shape of the image). As
each slice of the original image is copied into the new sine-based image,
it is resized to fit (causing a shrinking or 3D effect). Shading is added,
and the effect is applied multiple times, shifting the sine wave to create
an endless 'twisting' animation.
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Tips: Any image will do! (Banners look especially cool!)
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Inspiration: Ever held up the left-over tractor-feed strips from
printer paper and twist it? Well, I did...
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Levels: None
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