what are the 3D GRAPHICS  

3D computer graphics are worked of graphic art created with the aid of digital computers and 3D software.The term may also refer to the process of creating such graphics, or the field of study of computer graphic techniques and related technology.
3D computer graphics are different from 2D computer graphics in that a three dimensional representation of geometric data is stored in the computer for the purposes of performing calculations and rendering 2D images.3D modeling is the process of preparing geometric data for 3D computer graphics rely on many of the same algorithms as 2D computer graphics