Virtual reality provides an illusion of being present in an environment by using interactive hardware and software to simulate physical presence in virtual worlds. There are three main forms of VR: through-the-window VR uses computer screens, immersive VR completely immerses the user in a synthetic 3D world using head-mounted displays and data gloves, and second person VR captures the user's image and inserts it into the virtual world. VR has applications in training, entertainment, flight simulation, and medical procedures by providing safe and controlled environments to practice skills. However, initial costs are high and prolonged use can cause psychological stress.

1. VirtualReality Gurjot Singh MCA - I Creator :-

3. One experiences illusion of being in presence of an object or within a situation.

6. Looks into the Virtual World through computer screens.

7. Navigates through Mouse, Joystick, Keyboard etc.

8. These are non-immersive systems.

10. The scene is entirely synthetic & created by software, not filmed.

15. Training United States: The military used it for Shooting practice to trained soldiers Example of Immersive VR

16. Entertainment The most effective way to calm patients is to entertain them. NO need to go in some Adventure Park - Feel the zeal of Roller Coaster at home

18. Real-Time Computer Generated Images

19. Force Feedback

21. NO danger to Human life.In 1950s, First flight simulators were built by US Air Force

22. Simulator Here is an example of the simulator in NTPC.

24. Perform surgery on a remote patient that reduces the risk factor on the patient’s life.

25. Teach new skills in a safe, controlledenvironment.

27. Electronic Design Automation,

28. CAD,

29. Computer Aided Manufacturing (CAM)

30. Finite Element Analysis

31. Programming language,

32. such as C++, Perl, Java or Python , etc.

33. Software packages available in market

34. Multi-Verse (Freeware)

35. Virtual Reality Studio (Cost $100)

36. Sense8 World Tool Kit (WTK) (Cost over $1000)

37. Autodesk Cyberspace Development kit (over $1000)

40. VR offers us a new way to interact with computer.

41. VR enables us to Experience the virtual world that is impossible in real world.

42. VR makes us familiar with all the worst case conditions.