1、打开Unity，新建一个空工程，具体如下图
2、在你工程中右键 Import Package，导入标准件，具体如下图
3、在场景中，添加一个 Plane，并且把ThirdPersonController 预制件拖入场景，适当布局，具体如下图
4、在 Main Camera 摄像机上添加一个脚本 SmoothFollow 脚本，具体如下图
5、SmoothFollow 脚本具体内容如下：usingUnityEngi艘绒庳焰ne;namespaceUnityStandardAssets.Utility{ publicclassSmoothFollow:MonoBehaviour {//Thetargetwearefollowing [SerializeField] privateTransformtarget; //Thedistanceinthex-zplanetothetarget [SerializeField] privatefloatdistance=10.0f; //theheightwewantthecameratobeabovethetarget [SerializeField] privatefloatheight=5.0f;[SerializeField] privatefloatrotationDamping; [SerializeField] privatefloatheightDamping;//Usethisforinitialization voidStart(){}//Updateiscalledonceperframe voidLateUpdate() { //Earlyoutifwedon'thaveatarget if(!target) return;//Calculatethecurrentrotationangles varwantedRotationAngle=target.eulerAngles.y; varwantedHeight=target.position.y+height;varcurrentRotationAngle=transform.eulerAngles.y; varcurrentHeight=transform.position.y; //Damptherotationaroundthey-axis currentRotationAngle=Mathf.LerpAngle(currentRotationAngle,antedRotationAngle,rotationDamping*Time.deltaTime);//Damptheheight currentHeight=Mathf.Lerp(currentHeight,wantedHeight,heightDamping*Time.deltaTime);//Converttheangleintoarotation varcurrentRotation=Quaternion.Euler(0,currentRotationAngle,0);//Setthepositionofthecameraonthex-zplaneto: //distancemetersbehindthetarget transform.position=target.position; transform.position-=currentRotation*Vector3.forward*distance;//Settheheightofthecamera transform.position=newVector3(transform.position.x,currentHeight,transform.position.z);//Alwayslookatthetarget transform.LookAt(target); } }}
6、给脚本赋值，Target 为ThirdPersonController，Distance 是摄像机据主角 ThirdPerson潮贾篡绐Controller 的距离，Height是摄像机据主角ThirdPersonController 的高度，Rotation Damping 和 heightDamping是摄像机平滑调整旋转和高度的时间参数，你也可以根据自己需要作调整，具体如下图
7、运行场景，移动主角，摄像机同时也跟着移动，具体如下图
8、到此，《Unity 实用教程 之 摄像机跟随主角移动方法三》讲解结束，谢谢
