Pôster Perception of Elevation

In this 2-dimensional Fractal image you could perceive depth, distance, elevation and floatation (of the cone). ***************** Wikipedia: "Depth perception is the visual ability to perceive the world in three dimensions. Although any animal capable of moving around its environment must be able to sense the distance of objects in that environment, the term perception is reserved for humans, who are, as far as is known, the only beings that can tell each other about their experiences of distances."...."Ocular conditions such as amblyopia, optic nerve hypoplasia, and strabismus may reduce the perception of depth." ******************************************************************************* You could view all of my images with optical effects at : http://www.zazzle.com/mohsenart/gifts?cg=196904589798277291