Before revision: Human perception is largely influenced by the environment; that is, the context in which the object is found.250px|Shape constancy: We perceive the object to be a rectangular door opening but, if we drew this out, it is made up of varying shapes Shape constancy is similar to size constancy in that it relies largely on the perception of distance.
After revision: Human perception is largely influenced by the environment; that is, the context in which the object is found.250px|Shape constancy: One would perceive the object to be a rectangular door opening but, if it were to be drawnin fact out, it is made up of varying shapes Shape constancy is similar to size constancy in that it relies largely on the perception of distance.