There is a technique wherein the plate is cut in ridges, like checkering, and the faces on the left can be dimpled with one image, and the other sides with another. Is that what you mean? You must look at it at a very low angle to see only the faces of one side of the ridges.
Not common at all.
An image that morphs through optical illusion, like an Escher print, or as an example, "The Witches" would be easier.
Get some pictures!

Out there doing it best I can.