A visual presentation of a 3D or physical object used in 3D computer graphics. It is created by specifying each edge of the physical object where two mathematically continuous smooth surfaces meet, or by connecting an object’s constituent vertices using straight lines or curves. The object is projected onto the computer screen by drawing lines at the location of each edge. The term wireframe comes from designers using metal wire to represent the 3D shape of solid objects. 3D wireframe allows a user to construct and manipulate solids and solid surfaces. 3D solid modeling technique efficiently draws a higher quality representation of solids than conventional line drawing does.