Computer Graphics : 3D Graphics Part 1

Computer graphics is the branch of computer science that applies computer technology to produce and manipulate visual representations. It is associated with a wide assortment of topics including the presentation of text, the construction of graphs and charts, the development of graphical user interfaces, the manipulation of photographs, the production of video games, and the creation of animated motion pictures. Computer An Overview by J. Glenn Brookshear.
In Modern times, the word Computer Graphics can be used in reference to the field called 3 Dimensional Graphics (3D Graphics) and this is the portion we will be majoring on in this article.
With the emergence of digital cameras, the popularity of software for manipulating digitally encoded images has rapidly expanded. This software allows one to edit or "touch-up" photographs by removing spots, blemishes and the dreaded "red eye" as well as cutting and pasting portions from different photographs to create images that do not necessarily reflect reality.
Similar techniques are often applied to create special effects in the motion picture and television industries. In fact, such applications were major motivating factors for these industries shifting from analog systems such as film to digitally encoded images. Applications include removing the appearance of support wires, overlaying multiple images, or producing short sequences of new images that are used to alter the action that was originally captured by a camera.
In addition to software for manipulating digital photographs and motion picture frames, there is now a wide variety of utility/application software packages that assist in producing two-dimensional images ranging from simple line drawings to sophisticated art. (A well-known elementary example is Microsoft's application called Paint.) At a minimum, these programs allow the user to draw dots and lines, insert simple geometric shapes such as ovals and rectangles, fill regions with color, and cut and paste designated portions of a drawing.
Note that all the above applications deal with the manipulation of flat two dimensional (2D) shapes and images. They are therefore examples of two related fields of research. One is 2D graphics, the other is image processing. We will continue more on Computer Graphics on our next article