Unity camera to follow

Fixed camera to follow

This camera has a reference object, it will maintain a fixed position of the reference object, the reference object is moved to follow the change

using UnityEngine;
using System.Collections;

public class CameraFlow : MonoBehaviour
{
    public Transform target;
    private Vector3 offset;
    // Use this for initialization
    void Start()
    {
        offset = target.position - this.transform.position;

    }

    // Update is called once per frame
    void Update()
    {
        this.transform.position = target.position - offset;
    }
}

 

Fixed camera to follow, with the angle of rotation

A camera followed this is an improvement over the first camera to follow, in the original basis of the above, add the control to follow the angle

using UnityEngine;
using System.Collections;

public class CameriaTrack : MonoBehaviour {
    private Vector3 offset = new Vector3(0,5,4);//相机相对于玩家的位置
    private Transform target;
    private Vector3 pos;

    public float speed = 2;

    // Use this for initialization
    void Start () {
        target = GameObject.FindGameObjectWithTag("Player").transform;

    }

    // the Update IS Called Once per Frame 
    void the Update () { 
        POS = target.position + offset;
         the this .transform.position = Vector3.Lerp ( the this .transform.position, POS, Speed * Time.deltaTime); // adjustment camera the distance between the players 
        Quaternion Angel = Quaternion.LookRotation (target.position - the this .transform.position); // Get the rotation angle of 
        the this .transform.rotation = Quaternion.Slerp ( the this .transform.rotation, Angel, Speed * Time .deltaTime); 

    } 
}

 

Third-person camera

Such cameras to follow, is a third-person perspective to an object, that is, we have been looking to behind objects, as always display the player's back

the using UnityEngine;
 the using the System.Collections;
 // camera has shot lead back 
public  class CameraFlow: MonoBehaviour { 

    public the Transform target; 


    public  a float distanceUp = 15f;
     public  a float distanceAway = 1OF;
     public  a float Smooth =. 2F; // location smooth movement value 
    public  a float camDepthSmooth = 5F;
     // the Use for the this Initialization 
    void the Start () { 

    } 

    // the Update IS Called Once per Frame 
    void the Update () {
       // 鼠标轴控制相机的远近
        if ((Input.mouseScrollDelta.y < 0 && Camera.main.fieldOfView >= 3) || Input.mouseScrollDelta.y > 0 && Camera.main.fieldOfView <= 80)
        {
            Camera.main.fieldOfView += Input.mouseScrollDelta.y * camDepthSmooth * Time.deltaTime;
        }

    }

    void LateUpdate()
    {
       //相机的位置
        Vector3 disPos = target.position + Vector3.up * distanceUp - target.forward * distanceAway;
        transform.position=Vector3.Lerp(transform.position,disPos,Time.deltaTime*Smooth);
         // camera angle 
        transform.LookAt (target.position); 
    } 


}

 

The camera follows the mouse movement and zoom control

The camera and the observation target to maintain a certain distance, can be rotated up and down by a mouse, zoom in and out by operating a mouse wheel

using UnityEngine;
using System.Collections;

public class CameraFlow : MonoBehaviour
{
    public Transform target;
    Vector3 offset;
    // Use this for initialization
    void Start()
    {
        offset = transform.position - target.position;
    }

    // Update is called once per frame
    void Update()
    {
        transform.position = target.position + offset;
        Rotate();
        Scale();
    }
    //缩放
    private void Scale()
    {
        float dis = offset.magnitude;
        dis += Input.GetAxis("Mouse ScrollWheel") * 5;
        Debug.Log("dis=" + dis);
        if (dis < 10 || dis > 40)
        {
            return;
        }
        offset = offset.normalized * dis;
    }
    //左右上下移动
    private void Rotate()
    {
        if (Input.GetMouseButton(1)) 
        { 
            Vector3 POS = transform.position; 
            Vector3 rot = transform.eulerAngles; 

            // rotation about the origin, may be changed Vector3.zero target.position, is rotated about the observation object 
            transform.RotateAround (Vector3.zero, Vector3. up, Input.GetAxis ( " Mouse X- " ) * 10 ); 
            transform.RotateAround (Vector3.zero, Vector3.left, Input.GetAxis ( " Mouse the Y " ) * 10 );
             a float X = transform.eulerAngles.x;
             a float = Y transform.eulerAngles.y;
            Debug.Log ( " X = " + X); 
            Debug.Log ( " Y = " + Y);
             // controlling movement range 
            IF (X < 20 is || X> 45 || Y < 0 || Y> 40 ) 
            { 
                transform.position = POS; 
                transform.eulerAngles = rot; 
            } 
            //   update the relative difference 
            offset = transform.position - target.position; 
        } 

    } 
}