"A demo of the inverted footsteps illusion" (平行四辺形可能)made by
Akiyoshi Kitaoka, August 17, 2021, April 12, 2026
object color A --- R: G: B:
object color B --- R: G: B:
stripe color C --- R: G: B:
object color D --- R: G: B:
object size x:
y: pixel 縦ズレ
横ズレ
object interval: pixel
x shift: pixel width of a black stripe: pixel
time interval: ms

animation (viewing only)