These days, so many technologies have been used in the field of computer design to make them more efficient in the professional field. In this regard, 3D computer graphics have managed a good reputation in the techno world. Basically, these are graphics that uses a 3 dimensional representation in the computer for performing calculations and rendering 2D images. Such images can be stored and displayed later in real time. Basically, 3D computer graphics rely on same algorithms as 2D computer in wire frame model. In computer graphic software the difference between 3D and 2D is rarely indistinct. The procedure of making 3D computer graphics can be divided into 3 phases such as 3D modeling, layout and animation and 3D rendering. The functions of the three phases are quite different from each other. All in all 3D model is the mathematical depiction of any 3 dimensional object through which various technical work can be possible.
Process of making the 3D computer graphics are sequentially divided in 3 basic phases: the 3D modeling that describes process to form shape of the object, layout as well as animation that describes motion as well as placement of the objects within scene, as well as 3D rendering that makes the image of object.
Model describes process to form the shape of the object and two common sources of the 3D models are one originated on computer by the artist or else engineer making use of some type of the 3D modeling tool, those scanned in the computer from the real world objects. The models can be produced procedurally and though the physical simulation. Before objects are been rendered, they should get placed (laid out) in the scene. It is what defines spatial relationships between the objects in the scene that includes size and location.