Introduction to Computer Graphics for Beginners

Introduction to Computer Graphics

Computer graphics is the area of Computer Science where computers are uses to create images. It is a vast field that uses computers to create 2D and 3D images. These are static and dynamic (moving) visuals are possible.


Introduction to computer graphics

Here, You will learn the complete Introduction to Computer Graphics from beginning.


What is Computer Graphics?

Computer Graphics are visual representations of data, information, and ideas that have been created using computers. This technology is used in a wide range of applications, including animation, video games, and engineering.

Introduction to computer graphics revolution image

It can be used to create realistic images, videos, and 3D models.

Computer Graphics also uses in various types of Algorithms and methods for creating animations.

Uses of Computer Graphics?

Computer graphics are used in a variety of ways in the world today. Some common uses include:

  • Computer graphics are used in advertising and marketing to create images that are appealing to the eye.
  • Computer graphics are used in movies to create realistic images of people, animals, and objects.
  • Computer graphics are used in video games to create realistic images of characters, environments, and objects.
  • Computer graphics are used for representation of Medical diagnostics in graphical view.

Common Challenges in Computer Graphics?

Some common challenges in computer graphics include creating realistic images, designing efficient algorithms, and understanding the human visual system.


Types of Computer Graphics?

Types of Computer graphics are the following:-

Vector Graphics Raster Graphics
  • Vector Graphics are composed of mathematical equations that define the placement of lines and curves in two-dimensional or three-dimensional space.
  • Raster Graphics are composed of pixels, which are small dots of color that are arranged in a grid.
  • Vector graphics are cost-effective in comparison to raster graphics.
  • Raster graphics have cost less.
  • It has small file size.
  • It has large file size.
  • File extensions of Raster graphics are PDF, SVG, CGM, PDF etc.
  • File extensions of Vector graphics are JPG, BMP, GIF, PNG etc.

Advantages of Computer Graphics?

There are many advantages to computer graphics, including the ability to create realistic images, the ability to create images from scratch, the ability to edit images, and the ability to create animations.


Disadvantages of Computer Graphics?

However, there are also some disadvantages to computer graphics, including the fact that they can be time-consuming to create, can be expensive to produce, and the fact that they require special software and skills.


Different types of Computer Graphics Software?

There are a number of different types of computer graphics softwares used for creating graphics. Each has its own unique set of features and capabilities

Some of the most popular types of computer graphics software are Adobe Photoshop, Adobe Illustrator, Autodesk Maya, and Blender.


Different types of Computer Graphics Hardware?

There are several different types of computer graphics hardware are avaliable for working with high-quality computer graphics. That includes GPUs, video cards, Display adaptors, and Graphics cards.

Computer Graphics Principles and Practices?

The principles of computer graphics are the basic rules and concepts that govern the process of creating images using computers. These principles are used by artists, graphic designers, and computer programmers to create images that are realistic, appealing, and easy to understand.

  • The first principle of computer graphics is that all images are made up of pixels. A pixel is the smallest unit of an image, and all images are made up of a grid of pixels.
  • The second principle is that each pixel has a color. The color of a pixel is determined by the RGB color model, which defines colors in terms of red, green, and blue.
  • The third principle is that all images are made up of shapes. Shapes are the basic building blocks of all images, and they can be combined to create more complex images.
  • The fourth principle is that all images can be transformed. Transformation is the process of changing the shape, size, or position of an image.
  • The fifth principle is that all images can be seen from different viewpoints. Viewpoints are the different ways in which an image can be seen, and they can be changed by transforming the image.
  • The sixth and final principle is that all images can be displayed on a variety of devices. Devices include monitors, printers, and scanners.


Applications of Computer Graphics?

Some applications of computer graphics are:

  • Computer-aided design (CAD)
  • Computer-aided manufacturing (CAM)
  • Computer-generated animation
  • Special effects in movies and television
  • Virtual reality
  • Simulation
  • Education and training
  • Scientific visualization


History of Computer Graphics?

Computer graphics has a long and complicated history. The first computer was nothing more than simple calculator, and their output was limited to numbers. As time passed, computer become more powerful and were able to generate more complex graphics.

The Apple II was one of the first personal computers to feature a graphical user interface (GUI), and it popularized the use of graphics in computing. The IBM PC, released in 1981, also featured a GUI, and it quickly became the standard for personal computing.

As personal computers became more powerful, they were able to generate increasingly complex graphics. The introduction of the Macintosh in 1984 popularized the use of bit-mapped graphics, and the first 3D graphics began to appear in 1987 with the release of the Pixar Image Computer. The development of graphics acceleration hardware in the early 1990s allowed for the development of 3D games and other interactive 3D applications.

Today, computer graphics are an integral part of our lives, and they continue to evolve at a rapid pace. 3D graphics are now commonplace in movies, video games, and other forms of entertainment, and they are also being used in a variety of fields such as architecture, engineering, and medicine.


Future scope of Computer Graphics?

The future of Computer Graphics is very exciting. With the continued development of new and more powerful computer hardware and software, the possibilities for creating realistic and life like graphics are virtually limitless. 

We can expect to see more realistic and lifelike graphics in video games, movies, and other media. Additionally, the use of computer graphics in education and training is likely to increase, as it provides a more realistic and engaging learning experience.

Different types of Computer Graphics Challenges?

There are many different types of computer graphics challenges, ranging from simple tasks such as creating a basic image or animation, to more complex tasks such as creating realistic 3D environments or character models. Some common computer graphics challenges include:

  • Creating 2D or 3D images
  • Creating 2D or 3D animations
  • Creating 3D environments
  • Creating 3D character models
  • Rendering realistic images
  • Creating special effects
  • Designing user interfaces
  • And more! 

Methods used to create computer graphics in C? 

All graphics functions are defined in the graphics.h library in Turbo C. This library provides a wide range of functions that you can use to create graphics in C or C++. programs. It is available in include folder of turbo c compiler.


How to work with Computer Graphics in C?

For working with Computer Graphics, first you must have Turbo C++ Compiler installed in your computer system. 

If you have not then click =>  Download Turbo C++ Compiler

The graphics.h header file is used for developing graphics programs in C language.  It have all functions for working with graphics operations. Graphics.h header file can be find in include folder of turbo c++ compiler. graphics.h library provide the functions for drawing points, lines, circles, polygons, rectangles, and other shapes on the screen. Some of the most common functions defined in this header file are following –

line() – This function is used to draw a line from a given point (x1, y1) to a given point (x2, y2).

circle() – This function is used to draw a circle with a given radius at a given point (x, y).

setcolor() – This function is used to set the current drawing color.

getmaxx() – This function returns the maximum x-coordinate of the current graphics mode.

getmaxy() – This function returns the maximum y-coordinate of the current graphics mode.

setbkcolor() – This function is used to set the background color.

putpixel() – This function is used to draw a pixel on given point (x, y).

getpixel() – This function is used to get the pixel color from a given point (x, y).

cleardevice() – This function is used to clear the graphics screen.


Computer Graphics Programs

How to Run first Graphics Programming in C or C++?

Draw a line program in Computer Graphics

Draw Colorful Circle in Computer Graphics

Draw an animated line in Computer Graphics



Here, You have learned about the Basic Introduction to Computer Graphics from the beginning. for more computer graphics programs please follow our Computer Graphics programs list. If you have any other doubts related to above topic then, please comment us we will try to reply soon.

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top