"A demo of the footsteps illusion" (objects = disks) made by Akiyoshi Kitaoka, August 12, 2021

draw objects in front and behind

  object color x:   object size x:   y: pixel   transform: (0: rectangle) （0以外ではバグあり）

  arc from:   to:   tilt:

  object interval: pixel   x shift: pixel   transform (grating): (0: vertical)   width of black stripe: (0: vertical)

  time interval: ms

(Please wait until the drawing is complete.)

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