unity3d中高級手冊01基本4-3變換

1、Transforms UnityManualUserGuideCreatingGameplay Transforms areakeyComponent ineveryGameObject.Theydic Transforms UnityManualUserGuideCreatingGameplay Transforms areakeyComponent ineveryGameObject.Theydic ewheretheGameObjecthowitisro ed, anditsscale.ItissibletohaveaGameObjectransform.YoucanadjustTran

2、sformofanyGameObjectfromtheSceneView,theInspector,orthroughTransforms是一個關鍵組件在每個GameObject里。它們指定GameObject TheremainderofthispagestextisfromtheTransformComponentReference Transform TheTransformComponentdeterminestheition,ion,andScaleofallheEverysa TheTransformComponentisviewableand在檢視器里，Transform 組件是

3、可視與可編輯的Properties 屬he位itionoftheTransforminX,Y,andZ與x，y，zTransform旋ionRo ionoftheTransformaroundtheX,Y,andZaxes,measuredinTransform圍繞x，y，zScaleoftheTransformalongX,Y,andZaxesValue1istheoriginalsize(sizeatwhichtheobject was imported).沿 x，y，z 軸變換伸縮。值為 1 是原始大小（在該對象導入時的大?。┛sAllpropertiesofaTransformareme

4、asuredrelativetotheTransformsparent.IftheTransformhasnothepropertiesareAllpropertiesofaTransformaremeasuredrelativetotheTransformsparent.IftheTransformhasnothepropertiesaremeasuredrelativetoWorldUsingTransforms 使用變換Transformsarealwaysmanipulatedin3DspaceusingX,Y,andZaxes.InUnity,theseaxesarebythecol

5、orsred,green,andbluerespectively.Remember:XYZ= Color-coded relationship n 3 axes and Transform properties 色標3 個軸與變換組件之間的關系TransformComponentscanbedirectlymanipulatedusingtheSceneViewortheInspector.TheInspectorlistthepropertiess edaboveforeasyediting.YousomodifyTransformsinyourScenewiththem,usingtheM

6、ove,Ro e,andScaletools.ThesetoolsareUnityheupperndcornerof TheViewTranslateRo eandScaletools 查看，變換，旋轉(zhuǎn)機伸縮工Thetoolswillbeusableonanyobjectinyourscene.Clickontheobject,andyouwillseethetoolgizmoaroundit.Dependingonthecurrenttool,thegizmowilllookslightlydifferent.ClickingtheobjectwillalsotheTransformcomp

7、onenteheInspector.IftheInspectordoesnotdisplaythecomponentoritsproperties,thenyoudoveanobjectheScene平移工具-旋轉(zhuǎn)工具-縮放工具-AllthreeGizmoscanbedirectlyeditedinSceneView. To平移工具-旋轉(zhuǎn)工具-縮放工具-AllthreeGizmoscanbedirectlyeditedinSceneView. TomanipulatetheTransform,clickanddragononeofthe3gizmoaxes,youllnoticeitscolo

8、rchanges.Asdrag the mouse,you will see the object translate,ro e, or scale alongthe axis. When you release thebutton,youllttheaxisected.YoucanclickthemiddlemousebuttonanddragthetomanipulatetheTransformalongtheselectedaxis.Toofall3sall3axesatonceclickanddragtheAny individual axis 時eselectedwhenyoucli

9、ckonit 的軸將變?yōu)檫x取狀態(tài)當你在它上面Parenting 父類Parenting is one of the most important concepts to understand when using Unity. When a GameObject is a ParentofanotherGameObject,theChildGameObjectwillmove,ro e,andscaleexactlyasitsParentdoes. Just like your arms are attached to your body, when you turn your body, y

10、our arms move because theyreattached.Anyobjectcanhavemultiplechildren,butonlyone YoucancreateaParentbydragginganyheHierarchyViewontoanother.Thiswillcreate nthetwo YoucancreateaParentbydragginganyheHierarchyViewontoanother.Thiswillcreate nthetwo Areal-worldleofaParent-Childhierarchy.AlltheGameObjects

11、rrowstotheleftare heabovele,wetthearmsareparentedtothebody,andthehandsareparentedtotheThescenesyoumakeinUnitywillcontaincollectionsoftheseTransformhierarchies.ThetopmostobjectiscalledtheRootobject.Whenyoumove,scale,orro eaparent,allthechangesinitsTransformare app d to its children as well.在上面的例子里說胳膊

12、是身體的父，以及手是胳膊的父。在Unity里你創(chuàng)造的場景將包含這些變換層次Itisworthpo ing ttheTransformheInspectorofanyChildGameObjectarerelativetotheParentsTransformvalues.ThesearealsocalledtheLocalCoordinates.Throughscripting,canstheGlobalCoordinatesaswellastheLocal 過Youcanbuildcompoundobjectsbyparentingmultipleseparateobjectstogethe

13、r,liketheskeletalstructureofhumanragdoll.Yousocreatesmallyeteffectiveobjectswithsingleparents.Forle,ifyouhavettakesplaceatnight,youcancreateaneffectiveatmosphereflashlight.Tocreateobject,youwouldparentaspotlightTransformtotheflashlightTransform.Then,anyalterationoftheTransformwillaffectttakesplaceat

14、night,youcancreateaneffectiveatmosphereflashlight.Tocreateobject,youwouldparentaspotlightTransformtotheflashlightTransform.Then,anyalterationoftheTransformwillaffectthespotlight,creatingaconvincingflashlightImportanceofScale 縮放的重ThescaleoftheTransformdeterminesthedifferencenthe sizeofyourmeshinyoura

15、pplication,andthesizeofyourmeshinUnity.ThemeshssizeinUnity(andthereforetheTransformsisveryimportant,llyduringphysicssimulation.Thereare3tcandeterminetheScaleof轉(zhuǎn)換的伸縮確定你的模型程序里的網(wǎng)格大小與Unity里的網(wǎng)格大小之間的不同。在Unity里的網(wǎng)格大小（ Thesizeofyourmeshinyour3Dingapplication. 3DTheMeshScaleFactorheobjectsImportSettings. TheS

16、calevaluesofyourTransformComponent. Ideally,youshouldnotadjusttheScaleofyourheTransformComponent.Thebestoptionistoyoursatreal-lifescale,soyouvetochangeyourTransformsscale.Thesecond-bestoptiontoadjustthescaleatwhichyourmeshisheImportSettingsforyourindividualmesh.optimizationsoccurbasedontheimportsize

17、,andinstantiatingansanadjustedscalevaluedecreaseperformance.Formoreinformation,readthroughtheRigidbodycomponentssectionons WhenparentingTransforms,puttheparentslocationat0,0,0beforeapplyingthechild.Thiswill save you many headaches later. ParticleSystemsarenotaffectedbytheTransformsScale.InordertoscaleaParticleyouneedtomodifytheheSystemsParticleEmitter,Animatorand粒子系統(tǒng)不受變化伸縮的影響。為了伸縮一個粒子系統(tǒng)，你需要修改屬性在粒子系統(tǒng)里IfyouareusingRigidbodiesforphysicssimulation,thereissomeimportantIfyouareusingRigidbodiesforphysicssimulation,thereissomeimportanti