unity3d之相机跟随人物

一.第三人称视角 _1

先设置好相机与玩家之间的角度

给相机添加代码

using UnityEngine;
using System.Collections;

namespace CompleteProject
{
    public class CameraFollow : MonoBehaviour
    {
        public Transform target;            // The position that that camera will be following.
        public float smoothing = 5f;        // The speed with which the camera will be following.


        Vector3 offset;                     // The initial offset from the target.


        void Start ()
        {
            // Calculate the initial offset.
            offset = transform.position - target.position;
        }


        void FixedUpdate ()
        {
            // Create a postion the camera is aiming for based on the offset from the target.
            Vector3 targetCamPos = target.position + offset;

            // Smoothly interpolate between the camera's current position and it's target position.
           //相机平滑的移动到目标位置，插值
            transform.position = Vector3.Lerp (transform.position, targetCamPos, smoothing * Time.deltaTime);
        }
    }
}

二、第三人称视角_2，可自己根据游戏效果调节位置

 在inspector面板修改mHeight与mDistance值即可

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class FollowCamera : MonoBehaviour 
{
    public Transform mTarget; //相机的跟随目标
    public float mHeight=8f;
    public float mDistance=6f;
    public float interpolation = 20.0f;
    public Space space = Space.World;

    // Use this for initialization
    void Start () 
    {
        
    }
    
    // Update is called once per frame
    void LateUpdate () 
    {
        if (mTarget)
        {
            Vector3 dest = Vector3.zero;
            switch (space)
            {
                case Space.World://以世界为中心
                    dest = mTarget.position + Vector3.up * mHeight - Vector3.forward * mDistance;
                    break;
                case Space.Self://玩家为中心，一般用不到可省略switch
                    dest = mTarget.position + mTarget.up * mHeight - mTarget.forward * mDistance;
                    break;
                default:
                    break;
            }
            transform.position = Vector3.Lerp(transform.position, dest, interpolation);
            transform.LookAt(mTarget.position);
        }
    }
}