Moving Sub Dots Optical Illusion

Can you see this optical illusion moving and shifting?

See Another Random Optical Illusion

Scroll down for the explanation.

Most people will see this optical illusion moving and shifting as they look at it for a short while.

Explanation

We live in a three dimensional world. Our mind tries to convert a two dimensional object into a 3D one. Here in this optical illusion, we try to make sense of these 2D objects. The shading used is completely incongruous. We lock onto a bit of the illustration that looks appropriately shaded and then find it conflicting with the shading in other nearby areas. We keep jumping around the illustration trying to map out a 3D solution that would make the shading make sense, but it never seems to work.