DAFFIE, Multicast bridging, and tiled display wallsdaffie，组播桥接，拼接显示墙

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1、DistributedComputingwithDAFFIEGlennBresnahanBostonUniversityScientificComputingandVisualization(http://scv.bu.edu/DAFFIE/Earlab-Oct02)AgendaDAFFIEoverviewDAFFIEliveexampleDAFFIEdistributedcomputingcomponentsEarlab“leaky”exampleAdvanceddisplaydemonstrations(CGL)2ScientificComputingandVisualizati

2、onWhatisDAFFIE?DistributedApplicationsFrameworkForImmersiveEnvironmentsSystemforeasilycreatingdistributedandsharedvirtualenvironmentsAuthoredbyGlennBresnahan,ErikBrisson,RobertPutnam3ScientificComputingandVisualizationBackground&MotivationDistributed/remotevisualization(~1992)CMtonetworkedSGIwo

3、rkstationsIWay(1995)NSF(vBNS)ConnectionsProgram(1996)Alliancecomputingandvisualizationgrid(NSFPACI)(1997)ImmersaDeskAlliance‘984ScientificComputingandVisualizationDistributedApplicationIssuesAnalysisofapplicationcommunicationrequirementsSensitivitytobandwidthSensitivitytolatencyTestinganddebugg

4、ingPerformancemeasurementandanalysisRobustnessInteroperabilityofsoftwaretoolsManagementandschedulingofresourcesinmultipleadministrativedomainsHardwarebottlenecksScalabilityofapplicationsSecurityandprivacy5ScientificComputingandVisualizationTheVRExperience-ImmersionReal-time,realistic3DgraphicsS

5、tereopsisWide(complete)fieldofviewViewerbasedpoint-of-viewNavigabilityNaturalinteractionmodesRealisticaudio6ScientificComputingandVisualizationDistributedVRMulti-person,multi-sitesharedvirtualspaceNavigationAvatarrepresentationTelephony7ScientificComputingandVisualizationDAFFIEDistributedVRMode

6、lObjectiveStateconsistencyMinimizeand/orhidelatencyPersistenceEquipotentclientsNetworkvisiblestateMessage(event)basedMessageclassesDeliveryserviceclassesGloballysequenced,reliabledeliveryMessageclasssubscription8ScientificComputingandVisualizationDAFFIEComponentsMessagingsystem(events)VR(upperl

7、ayer)protocolClientapplications(agents)FORMOREINFO...http://scv.bu.edu/DAFFIE9ScientificComputingandVisualizationDAFFIEApplicationClientsViewerSoundserverTelephonygeneratorSoundplayerBehavioragentsAudio/videogenerators/processorsO