If you enjoyed our Swimmy Circles optical illusion, you may have wondered about the algorithm that determined the angles and placements of the light and dark 'shadows' on the blue dots. We used a topographical mapping stolen from a Calculus book to get a ripply-type pattern. Each 'z' value was used as an angle to determine the offset positions of the light and dark disks. That image is shown above.

Features:

Comments:	Used an array of colors and some 'helper' functions to pull off this design.

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