3D Schröder Staircase - Origami

Origami Shröder Staircase, inspired from ’3D Schröder Staircase’ by Kokichi Sugihara, Best Illusion of the Year Contest - 2020 ( How to make origami stairs. Optical Illusion. From one single sheet of square paper. Schroeder stairs (Schröder’s stairs) is an optical illusion which is a two-dimensional drawing which may be perceived either as a drawing of a staircase leading from left to right downwards or the same staircase only turned upside down, a classical example of perspective reversal in psychology of perception. It is named after the German natural scientist Heinrich G. F. Schröder, who published it in 1858.