3D (Three Dimensional), or three-dimensionality is present in every day, in every place, even if we do not notice it at all.

Three-dimensionality is a condition where the location is determined using three coordinates. The most commonly used rectangular or Cartesian coordinate axes are at right angles to each other, and their names are on the X (horizontal), Y (vertical) and Z (depth). Can be determined as accurately place the object in spherical coordinates indicating the elevation angle, rotation angle and the distance from the origin. Experience in the world is generally three-dimensional. Three-dimensionality can be compared to even two-dimensional Super Mario game in which Mario can only move left and right or up and down. Also, the images are two-dimensional, because they have no depth.