Technology
Visualsimulationmakesfulluseofhumanvisualcharacteristics,andcreatesathree-dimensionalgraphicsenvironmentthatreflectsthechangesandinteractionsofentitiesthroughthereal-timerenderingofthree-dimensionalgraphics,soastoachieveveryrealisticSimulationeffect.Atypicalvisualsimulationsystemrequiresconstructingarealisticthree-dimensionalmodel,makingrealistictexturesandspecialeffects,reproducingthesimulationenvironmentrealisticallyathighspeed,andrespondingtointeractiveoperationsinrealtime.
Features
Themainfeaturesofvisualsimulationare:①Fidelity.Visualsimulationputsmoreemphasisontheimmersiveuserexperience,requiringthethree-dimensionalmodelofthesimulatedentityandtheenvironmenttobeabletorealisticallysimulatetheobjectiveworld.②Interactivity.Inadditiontothecontrollableparametersettingsofthesimulationobject,thevisualsimulationitselfisalsocontrollable,includingcontrollablesimulationprocess,controllableobservationorientation,andcontrollableinformationoutputcontent.Thedifferencefromcomputer3Danimationisthatcomputer3Danimationcanonlyprovideunchangeablescreenplayback,whilevisualsimulationhasinteractivefeatures.Userswatchingvisualsimulationcanchangetheobservationpositionandangleoradjustthesimulationenvironmentatanytimeasneeded.Theposition,postureandcharacteristicsofvariousobjects.③Accessibility.Throughcomputerinteractiveequipment(suchasaudio-visualhelmets,datagloves,stereoglasses,etc.),ithastheabilitytoenterthevirtualscenedrawnbythecomputertoroam.④Real-time.Thevirtualsceneandthesimulationentitydisplayedbythesimulationcanbechangedinrealtime.
Application
Visualsimulationwasfirstappliedinthefieldofnationaldefenseandmilitaryresearch.Itwasoriginallyusedinmilitaryflightsimulatorstotrainpilotstobefamiliarwiththeflightenvironmentsuchaslandforms,clouds,stars,andspecialeffects(atmosphericeffects,lightingeffects).Therealisticvisualenvironmentcanmakethepilotseemtohaveenteredtherealworld,andthepreciselandmarksandtargetscanenablethepilottocompletemanytacticalsubjects,andcanevenbeusedaspre-warterrainandbattlefieldenvironmentrehearsaltraining.Visualsimulationhasbeenwidelyusedinmilitaryfieldssuchasmilitarytrainingsimulation,weaponsandequipmentdevelopmentanddemonstration,aswellascivilfieldssuchasurbanconstructionplanning,entertainment,andeducation.