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Virtual reality


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A Simple & easy to grasp virtual reality presentation.

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Virtual reality

  1. 1. VirtualReality<br />Gurjot Singh <br />MCA - I<br />Creator :-<br />
  2. 2. Virtual Reality<br /><ul><li>Technology that provides one with the sensations & Control of perspective
  3. 3. One experiences illusion of being in presence of an object or within a situation.
  4. 4. Computer based application provides a Human-Computer </li></ul> interface such as with computer & its devices <br /><ul><li>Creates a sensory environment control by </li></ul> the actions of the individual.<br />
  5. 5. Forms Of Virtual Reality<br />1) Through the- window<br /><ul><li> Also known as “Desktop VR”.
  6. 6. Looks into the Virtual World through computer screens.
  7. 7. Navigates through Mouse, Joystick, Keyboard etc.
  8. 8. These are non-immersive systems.
  9. 9. eg: video games</li></li></ul><li>2) Immersive VR<br /><ul><li> Completely immerse the user's personal viewpoint inside the virtual 3D world.
  10. 10. The scene is entirely synthetic & created by software, not filmed.
  11. 11. The user has no visual contact with the physical world </li></ul>e.g. Head Mounted Display (HMD), data gloves.<br />3) Second Person VR<br /><ul><li>It uses camera to capture the image of a user &</li></ul> insert it into the virtual world.<br /><ul><li>Users watch their images on a monitor interacting </li></ul> with objects in the virtual world. <br />
  12. 12. Head Mounted Display<br /><ul><li> A Helmet or HMD providing </li></ul> the visual and auditory displays.<br /><ul><li> Use LCD or CRT to display stereo images.
  13. 13. May include built-in head-tracker &</li></ul> stereo Headphones<br /><ul><li>Head Mounted Camera (HMC)</li></ul>Since display is synthetic :-<br /> i.e. generated by a computer, it is easy to present different 2-D views to the eyes of the viewer. <br />
  14. 14. Data Glove<br /><ul><li>Outfitted with sensors on the fingers as well as an overall</li></ul> position/orientation tracking equipment.<br /><ul><li>Enables natural interaction with virtual objects by</li></ul> hand gesture recognition.<br />ADV :-<br />Read data directly from user’s hands<br />Cyber glove is a high-end data glove with 18 sensors to track accurately every move<br />our hand would make.<br />
  15. 15. Training<br />United States: <br />The military used it for Shooting practice to trained soldiers<br />Example of Immersive VR<br />
  16. 16. Entertainment<br />The most effective way to calm<br /> patients is to entertain them.<br />NO need to go in some Adventure Park - Feel the zeal of Roller Coaster at home<br />
  17. 17. Flight Simulation<br />Why Flight Simulation:-<br /> <br /><ul><li> Production Cost
  18. 18. Real-Time Computer Generated Images
  19. 19. Force Feedback
  20. 20. Immersion</li></ul>Adv :-<br /><ul><li> Safe to practice skills.
  21. 21. NO danger to Human life.</li></ul>In 1950s, First flight simulators were built by<br />US Air Force <br />
  22. 22. Simulator<br />Here is an example of the simulator in NTPC.<br />
  23. 23. Medical Science<br /><ul><li>Practice performing surgery.
  24. 24. Perform surgery on a remote patient that reduces the risk factor on the patient’s life.
  25. 25. Teach new skills in a safe,</li></ul> controlledenvironment.<br />
  26. 26. Software Requirements<br /><ul><li> Development tools :-
  27. 27. Electronic Design Automation,
  28. 28. CAD,
  29. 29. Computer Aided Manufacturing (CAM)
  30. 30. Finite Element Analysis
  31. 31. Programming language,
  32. 32. such as C++, Perl, Java or Python , etc.
  33. 33. Software packages available in market
  34. 34. Multi-Verse (Freeware)
  35. 35. Virtual Reality Studio (Cost $100)
  36. 36. Sense8 World Tool Kit (WTK) (Cost over $1000)
  37. 37. Autodesk Cyberspace Development kit (over $1000)
  38. 38. VRML (Virtual Reality Modeling Language)</li></li></ul><li>Drawbacks …!<br /> Initial Cost is High<br />Personal Isolation<br />Increases Unemployment<br />Prolonging periods may cause Psychological & Mental stress<br />
  39. 39. Summary<br /><ul><li>Visualization of complicated, large data is helpful for understanding & analysis.
  40. 40. VR offers us a new way to interact with computer.
  41. 41. VR enables us to Experience the virtual world that is impossible in real world.
  42. 42. VR makes us familiar with all the worst case conditions.
  43. 43. VR is changing our life, eventually VR will increasingly become a part of our life.</li></li></ul><li>By:- Gurjot Singh<br />