3D graphics 
The technique of creating three-dimensional objects in the two-dimensional environment of a computer screen. In addition to the horizontal and vertical axes of two-dimensional space, 3D graphics adds a third axis called the z-axis. 3D graphics techniques add depth, texture (such as texture mapping), shading (such as flat shading, and Gouraud shading), and perspective to create the illusion of three dimensions. Once created, 3D objects can be easily combined, manipulated, and reused. Most commonly found in computer games, 3D graphics are also generated by high-end CAD programs aimed at professional designers and engineers.