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Module 1: Introduction to Computer Graphics

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The key points from this module are:
Computer Graphics is the process of rendering static images or animation which is a sequence of images on the computer screen by efficient utilization of underlying resources.
Sylvan Chasen proposed four stages of the evolution of computer graphics in 1981. Following are the stages of evolution:

Gestational Period
Childhood Period
Adolescence Period
Adulthood Period

Modelling means creating and representing object geometry in a 3D world.
Each display screen has a basic unit of a display which is typically arranged in the form of a grid or matrix and is called a pixel.
There are three components that are unique to a graphic system, namely:

Display Controller
Video Memory
Video Controller

There are broadly two types of graphic systems which are based on the method used to excite the pixels. They are Vector Scan and Raster Scan.
The series of steps that are involved in the generation of colour values are together called the graphics pipeline.