Introduction to Computer graphics

Computer graphics

                 Computer graphics are graphics created using computers and the representation of image data by a computer specifically with help from specialized graphic hardware and software. Formally we can say that Computer graphics is creation, manipulation and storage of geometric objects (modeling) and their images (Rendering).

The field of computer graphics developed with the emergence of computer graphics hardware. Today computer graphics is use in almost every field. Many powerful tools have been developed to visualize data. Computer graphics field become more popular when companies started using it in video games. Today it is a multibillion dollar industry and main driving force behind the computer graphics development. Some common applications areas are as following:

• Computer Aided Design (CAD)
  
• Presentation Graphics
  
• 3d Animation
  
• Education and training
  
• Graphical User Interfaces
  
• Entertainment
  
• Visualization
  

Computer Aided Design:

• Used in design of buildings, automobiles, aircraft and many other product
  
• Use to make virtual reality system.
  

Presentation Graphics:

• Commonly used to summarize financial ,statistical data
  
• Use to generate slides
  

3d Animation:

• Used heavily in the movie industry by companies such as Pixar, DresmsWorks
  
• To add special effects in games and movies.
  

Education and training:

• Computer generated models of physical systems
  
• Medical Visualization
  
• 3D MRI
  
• Dental and bone scans
  
• Stimulators for training of pilots etc.
  

User Interfaces (Graphical User Interfaces)

CG is effectively used to make Menus, Icons (Graphical Symbols),to make window manager(multiple windows).

• Some of the Graphic packages includes PHIGS,Graphics Kernel System,Painting,drawing.

Entertainment:

• When we talk about Entertainment, immediately movies and games get in to picture.CG are mostly used in music videos, motion pictures, cartoon animation films. For finding out tricks to be used in Games, for its interactivity we often use CG

Visualization

• For analyzing scientific, engineering, medical and business data or behavior. Converting data to visual form can help to understand mass volume of data very efficiently.

Adarsh lakshetty