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DISTRIBUTED INTERACTIVE VIRTUAL ENVIRONMENT
 

DISTRIBUTED INTERACTIVE VIRTUAL ENVIRONMENT

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    DISTRIBUTED INTERACTIVE VIRTUAL ENVIRONMENT DISTRIBUTED INTERACTIVE VIRTUAL ENVIRONMENT Presentation Transcript

    • DISTRIBUTED INTERACTIVE VIRTUAL ENVIRONMENT
    • INTRODUCTION
        • VIRTUAL ENVIRONMENT
      • SIMPLE DEFINITION OF VIRTUAL ENVIRONMENT IS COMPUTER GENERATED SIMULATIONS(REPRESENTATION OF ACTION)
      • (OR)
      • THE USE OF 3D COMPUTER GRAPHICS IN THE INTERFACE
    • DIVE(DISTRIBUTED INTERACTIVE VIRTUAL ENVIRONMENT)
        • THIS IS AN EXPERIMENTAL PLATFORM FOR THE DEVELOPMENT OF VIRTUAL ENVIRONMENTS
        • THIS IS SPECIALLY TUNED TO MULTI USER APPLICATIONS, WHERE SEVERAL NETWORK PARTICIPANTS CAN BE INTERACT OVER A NETWORK
    • PEER-PEER APPROACH
        • DIVE IS BASED ON PEER-PEER APPROACH
      • WITH NO CENTRALISED SERVER,WHERE PEERS COMMUNICATE BY RELIABLE AND NON RELIABLE MULTICAST, BASED ON IP MULTICAST
      • BY THIS PEER – PEER APPROACH USER NAVIGATE IN 3D SPACE AND SEE,MEET AND COLLABORATE WITH OTHER USERS AND APPLICATIONS IN THE ENVIRONMENT
        • A PARTICIPANT IN A DIVE WORLD IS CALLED AN ACTOR, EITHER A HUMAN USER.
        • AN ACTOR IS REPRESENTED BY A “BODY-ICON”(AVATAR) TO FACILITATE THE RECOGNITION AND AWARENESS OF ON GOING ACTIVITES
    • DIVE CHARACTERISTICS
        • INTERACTION DELAY:
      • ANY ACTION ISSUED BY ANY PARTICIPANT IN THE DISTRIBUTED INTERACTIVE VIRTUAL ENVIRONMENT MUST REACH THE OTHER PARTICIPANT WITH IN 100MS . IF THE NETWORK DELAY IS MORE THAN 100MS THAN RECEIVED ACTION IS CONSIDERED AS LATE AND NOT USED BY THE APPLICATION
        • LARGE NUMBER OF PARTICIPANTS:
      • DIVE APPLICATIONCAN BE PLAYED BY SEVERAL USERS CONNECTED VIA NETWORK SUCH AS INTERNET
      • THE NUMBER OF PARTICIPANTS SHOULD BE UNLIMITED TO ALLOW EVERYBODY TO ENTER THE VIRTUAL WORLD.
    • MAIN AIMS OF DIVE
        • SCALABILITY:ABILITY TO SUPPORT MANY USERS, WITH MANY MACHINES INVOLVED IN THE EXECUTION.
        • INTEROPERABILITY:HETEROGENEOUS DVE IMPLEMENTATIONS SHOULD BE ABLE TO INTERWORK TO PROVIDE A SEAMLESS DVE
        • CONTENT-INDEPENDENCE:GRAPHICS AND GEOMETRY ARE IMPORYANT, BUT THEY ARE NOT ONLY DATA A DVE IS CONCERNEDWITH.ALL FORMS OF DATA SHOULD BE TREATED EQUALLY
        • COMMUNICATION: WE WANT THE USERS IN A DIVE TO BE ABLE TO COMMUNICATE .WE ARE PARTICULLARY INTRESTED IN SPATIALIZED AUDIO COMMUNICATIONS.
    • WORLDWIDEWEB(WWW)
        • IT IS A VIRTUAL SPACE OF DOCUMENTS.
        • USERS MAY BE USE IT ONCE BUT THEY R NOT AWARE OF EACH OTHER,IN THIS CASE WEB IS NOT MULTIUSER
        • WEB HAS THE DISTRIBUTED CONSTRUCTION BUT NOT DISTRIBUTED EXECUTION
        • INORDER TO OVERCOME THIS PROBLEM
      • A NEW VE TECHNOLOGY (VRML) IS INCLUDED
    • VIRTUAL REALITY MODELING LANGUAGE
        • VRML IS NORMALLY VIEWED USING A WEB BROWSER
        • IT INCLUDES CONTENTS FROM URL,and CONTAINS HYPERLINKS TO OTHER VRML WORLDS
        • IT INTERACTS WITH EXTERNAL ENTITES USING JAVA SCRIPTS.
    • MODEL OF VRML CLIENT
    • QUERIES?