The model describes the 3D shapes, layout, projections to compute a 2D image from a given viewpoint and rendering which involves projecting the objects (perspective), handling visibility (which parts of objects are hidden) and computing their appearance and lighting interactions and materials of the scene. It relies on an internal model of the scene, that is, a mathematical representation suitable for graphical computations. “Computer Graphics refers to any sketch, drawing, special artwork or other material generated with the help of computer to pictorially depict an object or a process or convey information, as a supplement to or instead of written descriptions”. Graphics is a vast field that encompasses almost any graphical aspect like special effects, simulation and training, games, medical imagery, animations and much more. It involves computations, creation, and manipulation of data. Computer graphics is an art of drawing pictures on computer screens with the help of programming. Thus, by using a computer as a rendering tool for the generation and manipulation of images is called computer graphics. In other words, we can say that computer graphics is a rendering tool for the generation and manipulation of images.

Describe various types of hardware, required to work with graphic systems like a) Display systems b) Cathode ray tube c) Random Scan d) Raster Scan and e) Display processor f) Graphics Pipelining  Discuss existing Graphic Softwares to assist in areas of Graphical processingġ.1 DEFINITION OF COMPUTER GRAPHICS Computer Graphics is principally concerned with the generation of images, with wide ranging applications from entertainment to scientific visualisation.Discuss applications of computer graphics in various fields.Describe computer graphics, its features and characteristics.

UNIT -1 INTRODUCTION TO COMPUTER GRAPHICS UNIT STRUCTURE 1.0 Objective 1.1 Definition of Computer Graphics 1.2 History of Computer Graphics 1.3 Applications of Computer Graphics 1.3.1 CAD and CAM processes 1.3.2 Scientific Visualization 1.3.3 Entertainment and photorealism 1.3.4 Medical Content Creation 1.4 Graphics Package 1.4.1 Pixels and frame Buffer 1.4.2 Input Devices 1.4.3 Output Devices 1.4.4 The CPU and GPU 1.4.5 Graphics Pipeline 1.5 Graphics Software Implements 1.6 Numerical Examples 1.7 Summary 1.8 Questions for Exercise 1.9 Suggested Readings 1.0 OBJECTIVE The objectives of this lesson are to make the student aware of the following concepts

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