display file structure in computer graphics abstract

Picture is produced on the monitor and the user does not have any control over the produced picture. Non-interactive computer graphics involves one way communication between the computer and the user. Thus the graphics system is a layer in between the application program and the display hardware that effects an output transformation from objects in the application model to a view of the modelĪ computer graphics operation that transfers automatically and without operator intervention. After the user input is processed, it sent to the graphics system is for actually producing the picture. It produces views by sending to the third component, the graphics system, a series of graphics output commands that contain both a detailed geometric description of what is to be viewed and the attributes describing how the objects should appear. The application program also handles user input. The first is the application program, it creates, stores into, and retrieves from the second component, the application model, which represents the the graphic primitive to be shown on the screen. At the hardware level (not shown in picture), a computer receives input from interaction devices, and outputs images to a display device.

The conceptual model of any interactive graphics system is given in the picture shown in Figure 1.1. In interactive computer graphics user have some control over the picture i.e user can make any change in the produced image. We call this work “realistic image synthesis”.

We want images on computers to not just look more realistic, but also to be more realistic in their colors, the way objects and rooms are lighted, and the way different materials appear. We spend much of our time improving the way computer pictures can simulate real world scenes. Or they may be pictures from places we cannot see directly, such as medical images from inside your body. The pictures can be photographs, drawings, movies, or simulations - pictures of things, which do not yet exist and maybe could never exist. Here in our lab at the Program of Computer Graphics, we think of computer graphics as drawing pictures on computers, also called rendering. Today almost every computer can do some graphics, and people have even come to expect to control their computer through icons and pictures rather than just by typing. The term computer graphics includes almost everything on computers that is not text or sound.

Display file structure in computer graphics abstract