如何在 Unity 中以第三人称视角让摄像机围绕玩家旋转？

Question

我正在尝试让摄像机围绕玩家旋转，以便玩家始终位于屏幕中间。我试过使用这个Slerp()功能。using UnityEngine;using System.Collections;public class rotate : MonoBehaviour{    public Transform target;    public float Speed = 1f;    public Camera cam;    public Vector3 offset;    void Update()    {        Vector3 direction = (target.position - cam.transform.position).normalized;        Quaternion lookrotation = target.rotation;        Quaternion playerrotation = target.rotation;        playerrotation.y = target.rotation.y;        playerrotation.x = 0f;        playerrotation.z = 0f;        lookrotation.x = transform.rotation.x;        lookrotation.z = transform.rotation.z;        //lookrotation.y = transform.rotation.y;        offset.x = -target.rotation.x * Mathf.PI;        transform.rotation = Quaternion.Slerp(transform.rotation, playerrotation, Time.deltaTime * Speed);        transform.position = Vector3.Slerp(transform.position, target.position + offset, Time.deltaTime * 10000);    }}它有效，但播放器不在屏幕中间。

Answer 1

以下脚本将旋转它附加到的游戏对象，以便将游戏对象保持在Target屏幕的中心，并使相机看起来与目标的方向相同。

public Transform Target;

public float Speed = 1f;

public Vector3 Offset;

void LateUpdate()

{

    // Compute the position the object will reach

    Vector3 desiredPosition = Target.rotation * (Target.position + Offset);

    // Compute the direction the object will look at

    Vector3 desiredDirection = Vector3.Project( Target.forward, (Target.position - desiredPosition).normalized );

    // Rotate the object

    transform.rotation = Quaternion.Slerp( transform.rotation, Quaternion.LookRotation( desiredDirection ), Time.deltaTime * Speed );

    // Place the object to "compensate" the rotation

    transform.position = Target.position - transform.forward * Offset.magnitude;

}

注意：永远，永远，永远不要操纵四元数的组件，除非你真的知道你在做什么。四元数不存储您在检查器中看到的值。它们是用于表示旋转的复杂实体，具有 4 个值。