我如何告诉相机只跟随 gameObject x 方向

Question

各位初学者大家好，我正在研究移动车辆挑战，我可以让相机跟随卡车，也可以让相机在视图之间切换（driver view/back 视图）问题是当我切换到后视图时，相机的初始 x 旋转设置为 0，所以我希望相机在 driver 视图中跟随玩家 x 方向，这样我就不会丢失后视图方向，你可以在下面看到我的代码和项目包here的link，谢谢

using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class FollowPlayer : MonoBehaviour
 {
     //Player GameObject variable (the vehicle)
     public GameObject player;
     //Fixing the camera vertical position
     private Vector3 offset = new Vector3(0, 5, -7);
     private Vector3 offset2 = new Vector3(0, 2.5f, 0.3f);
     private int currentTarget;
     public bool camController;
     // Start is called before the first frame update
     void Start()
     {
         
     }
 
     // Update is called once per frame
     void LateUpdate()
     {
         camController = Input.GetButtonDown("Fire1");
         if (camController) { 
             if (offset == offset2)
             {
                 currentTarget = 2;
                 
             } else
             {
                 currentTarget = 1;
                
             }
  
             switch(currentTarget)
             {
                 case 1:
                     offset = offset2;
                     break;
                 case 2:
                     offset = new Vector3(0, 5, -7);
                     break;
             }
         }
         //Offset the camera behind the player by adding to the player's position
         transform.position = player.transform.position + offset;
         transform.rotation = player.transform.rotation;
         Debug.Log(camController);
     }
 }

Answer 1

我认为拥有多个摄像头并在它们之间切换会更容易。所以创建你的 2 个相机，添加 Parent Constraints 给他们并根据需要进行设置。然后创建一个启用和禁用摄像头的脚本，如下所示：

using UnityEngine;
public class SwitchCams : MonoBehaviour
{
    public GameObject cam1;
    public GameObject cam2;

    bool isCam1 = true;
    
    void Start(){
        cam1.SetActive(true);
        cam1.SetActive(false);
    } 

    void Update(){
        bool shouldSwitch = Input.GetButtonDown("Fire1");
        if(shouldSwitch){
            isCam1 = !isCam1;
            cam1.SetActive(isCam1);
            cam2.SetActive(!isCam1);
        } 
    } 
}

出于某种原因，在 unity 中切换摄像机的最简单方法是启用和禁用它们。所以这个脚本就是这样做的。请记住将您的相机拖到检查器中脚本的插槽 cam1 和 cam2 中。

我如何告诉相机只跟随 gameObject x 方向

How do i tell the camera to only follow the gameObject x orientation

c#

unity3d

gameobject