
A 3D model is a mathematical representation of any three-dimensional object a model is not technically a graphic until it is displayed. Unlike the rendered image, a model's data is contained within a graphical data file. The objects in 3D computer graphics are often referred to as 3D models. In computer graphics software, 2D applications may use 3D techniques to achieve effects such as lighting, and similarly, 3D may use some 2D rendering techniques. More often, 3D graphics are being displayed on 3D displays, like in virtual reality systems.ģD graphics stand in contrast to 2D computer graphics which typically use completely different methods and formats for creation and rendering.ģD computer graphics rely on many of the same algorithms as 2D computer vector graphics in the wire-frame model and 2D computer raster graphics in the final rendered display. Unlike 3D film and similar techniques, the result is two-dimensional, without visual depth. The resulting images may be stored for viewing later (possibly as an animation) or displayed in real time.ģD computer graphics, contrary to what the name suggests, are most often displayed on two-dimensional displays. 3D computer graphics, sometimes called CGI, 3D-CGI or three-dimensional computer graphics are graphics that use a three-dimensional representation of geometric data (often Cartesian) that is stored in the computer for the purposes of performing calculations and rendering digital images, usually 2D images but sometimes 3D images.
