It's a reverse imprint of a 3D object! It's amazing, and it's how scary houses create statues that always look at you no matter how you turn. It's basically making a funky mask that you can hang on the wall. Add dim lighting and bam! Because it's an indentation, the object will always seem to be matching no matter how you turn it.
But this is a bit more complicated. Do you see the checkerboard pattern? When the "cube" is seen from a sharp angle, the white and black appear to blend together causing a shaded illusion which also tricks your brain into thinking that it's actually moving.
But this is a bit more complicated. Do you see the checkerboard pattern? When the "cube" is seen from a sharp angle, the white and black appear to blend together causing a shaded illusion which also tricks your brain into thinking that it's actually moving.