notes:i do not own photography's only video,read full description.
Placing the mouse over the image causes the oblique lines to disappear, revealing the fact that the red bars were completely straight all the time.
The picture on the right is a mess to look at. But if you place the mouse over it, you can see how beautifully it changes the apparent orientation of the red squares.
This is a dynamic variation of Three in One by Hans Kuiper which, in turn, is based on Square of Three by Reginald H. Neal (colour lithograph, 1964).
And another variant, a combination of Herings and Zöllners illusion. Again, judge the straightness of the lines, then place the mouse over the image.
LoL fail..>!
CarTown111 7 months ago