Unity三种摄像机旋转方式

1.按下鼠标右键可以实现摄像机上下左右旋转

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

public class CameraRotate : MonoBehaviour
{
    //旋转速度
    public float rotationSpeed = 5f;
    //上下旋转角度限制
    public float maxVerticalAngle = 90f;
    public float minVerticalAngle = -90f;
    //旋转缓冲速度
    public float lerpSpeed = 10f;
    private float targetRotationX = 0f;
    private float targetRotationY = 0f;
    void Update()
    {
        if (Input.GetMouseButton(1))
        {
            // 获取鼠标输入的旋转增量
            float rotationXInput = -Input.GetAxis("Mouse Y");
            float rotationYInput = Input.GetAxis("Mouse X");
            // 根据旋转速度进行摄像机的旋转
            targetRotationX += rotationXInput * rotationSpeed;
            targetRotationY += rotationYInput * rotationSpeed;
            // 对上下旋转角度进行限制
            targetRotationX = Mathf.Clamp(targetRotationX, minVertical