Unity3d--some camera properties and camera follow

The camera (Camera) is used to observe the game world
. The observation area of ​​the camera is called the "view cone". Objects within the scope of the "view cone" can be seen.

1. The basic operation of the camera:

1. Select the camera on the Hierarchy panel, and a preview window will appear in the Scene view
   

2. According to the position of the camera moving axially, rotate the angle of the camera
   

3. GameObject–> Align With View (Ctrl + Shift + F) to its view

4. Create a camera, right-click Camera on the Hierarchy panel

2. Camera-related attributes

1. Clear Flags 【Clear Flags】

• Skybox: Skybox

• Solid Color: fixed color (solid color)
  
  2.Background 【background color】

• When CLear Flag is Solid Color, the background color of the scene
  
  3. Projectction [Projection]

• Perspction: Perspective mode, 3D game use

• Orthographic: Orthographic mode, 2D games use
  
  4.Clipping Planes [cutting plane]

• Near: Near plane, what the camera can see recently

• Far: far plane, what the camera can see farthest

Third, the camera follows

1. First create a cube on the Hierarchy panel and make it move

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

public class move : MonoBehaviour {

    public float speed = 0.3f;
	// Use this for initialization
	void Start () {
		
	}
	
	// Update is called once per frame
	void Update () {
        float h = Input.GetAxis("Horizontal");
        float v = Input.GetAxis("Vertical");
        transform.Translate(new Vector3(h, v, 0) * speed);
	}
}

The camera is not following

2. We add a script component to the camera to make it follow the object movement

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class followmove : MonoBehaviour {
    private Vector3 dis;
    //这里的到的是游戏物体的Transform信息，因为，我们需要的到它的位置信息即可
    public Transform GameCube;    
	// Use this for initialization
	void Start () {
        //通过向量运算，得到物体与相机之间的相对（也可能是绝对，我忘了叫啥了）位置
        dis = GameCube.position - transform.position ;
	}
	
	// Update is called once per frame
	void Update () {
        //游戏物体的位置加上相对（绝对）位置，就是相机的位置
        transform.position = GameCube.position-dis;
	}
}

Note: Do n’t forget to bind game objects