Overlapping in art is the placement of objects over one another in order to create the illusion of depth. Painting is a two-dimensional artistic expression. It has length and width but no depth. It is necessary, therefore, for artists to provide viewers with some sort of perspective in establishing size and distance in paintings. This is where overlapping come into play.
Cameras will capture the motion of a marked suit and translate those movements into 3D animation. A good example of this being used would be Smaug the Dragon from The Hobbit.
