写了一个相机围绕物体360°自由旋转的脚本，比较实用，分享出来给大家使用，配置如下：
Hierarchy界面
LookPovit：为物体Auto Aircraft的中心空对象；
AroundPovit：用于相机的空对象，作为父类，主要作用是为了保持与被观察物体的位置一致，可防止Auto Aircraft出现抖动而影响相机的抖动；
相机Inspector界面：
相机代码如下：文章来源：https://www.toymoban.com/news/detail-509177.html
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class UAroundCamera : MonoBehaviour
{
[Header("围绕目标")]
public Transform aroundTargetTrans = null;
public Transform aroundPovitTrans = null;
[Header("纵向旋转最小/最大角度")]
private int VMinAngle = -90;
private int VMaxAngle = 90;
[Header("横向旋转最小/最大角度")]
private int HMaxAngle = -360;
private int HMinAngle = 360;
[Header("缩放最近/最远距离")]
public float minDistance = 20.0f;
public float maxDistance = 50.0f;
[Header("旋转横向、旋转纵向、缩放速度最大/最小值")]
public const float minSpeed = 10f;
public const float maxSpeed = 200f;
[Header("旋转横向、旋转纵向、缩放速度")]
[Range(minSpeed, maxSpeed)]
public float hSpeed = maxSpeed;
[Range(minSpeed, maxSpeed)]
public float vSpeed = maxSpeed;
[Range(minSpeed, maxSpeed)]
public float zSpeed = maxSpeed;
[Header("横向角度、纵向角度、缩放值")]
private float hAngle = 0.0f;
private float vAngle = 0.0f;
private float zoomValue = 0.0f;
/// <summary>
/// 当前角度
/// </summary>
private Quaternion curRotation;
/// <summary>
/// 当前距离
/// </summary>
private float curDistance;
[Tooltip("插值率")]
public float lerpRate = 1.0f;
[Header("相机初始位置和角度")]
public Vector3 initPosition;
public Vector3 initAngle;
// Use this for initialization
void Start ()
{
// 初始化
curDistance = maxDistance;
transform.position = initPosition;
transform.eulerAngles = initAngle;
vAngle = initAngle.x;
hAngle = initAngle.y;
}
void OnEnable()
{
}
private void Update()
{
// 检查旋转角度
if (Input.GetMouseButton(1))
{
Cursor.visible = false;
hAngle += Input.GetAxis("Mouse X") * (hSpeed) * Time.deltaTime;
vAngle -= Input.GetAxis("Mouse Y") * (vSpeed) * Time.deltaTime;
}
if (Input.GetMouseButtonUp(1))
{
Cursor.visible = true;
}
vAngle = ClampAngle(vAngle, VMinAngle, VMaxAngle);
hAngle = ClampAngle(hAngle, HMaxAngle, HMinAngle);
// 检查缩放
zoomValue = Input.GetAxis("Mouse ScrollWheel") * zSpeed * Time.deltaTime;
}
private void FixedUpdate()
{
// 更新围绕中心的位置为目标的中心位置
aroundPovitTrans.position = aroundTargetTrans.position;
}
// Update is called once per frame
private void LateUpdate()
{
// 旋转
curRotation = Quaternion.Euler(vAngle, hAngle, 0);
Quaternion rotation = Quaternion.Lerp(transform.rotation, curRotation, Time.deltaTime * lerpRate);
transform.rotation = rotation;
// 缩放
float distance = curDistance - zoomValue * Mathf.Abs(curDistance); // 当前
distance = Mathf.Clamp(distance, minDistance, maxDistance);
curDistance = Mathf.Lerp(curDistance, distance, Time.deltaTime * lerpRate);
// 更新相机的位置
Vector3 position = aroundPovitTrans.position - (rotation * Vector3.forward * curDistance);
transform.position = position;
// 根据当前距离中心的位置来调整缩放和旋转速率
float scaleValue = GetDistanceScale(curDistance);
hSpeed = scaleValue * (maxSpeed - minSpeed) + minSpeed;
hSpeed = Mathf.Clamp(hSpeed, minSpeed, maxSpeed);
vSpeed = scaleValue * (maxSpeed - minSpeed) + minSpeed;
hSpeed = Mathf.Clamp(vSpeed, minSpeed, maxSpeed);
zSpeed = scaleValue * (maxSpeed - minSpeed) + minSpeed;
hSpeed = Mathf.Clamp(zSpeed, minSpeed, maxSpeed);
}
/// <summary>
/// 界面编辑
/// </summary>
private void OnValidate()
{
transform.position = initPosition;
transform.eulerAngles = initAngle;
vAngle = initAngle.x;
hAngle = initAngle.y;
}
/// <summary>
/// 限制角度
/// </summary>
/// <param name="angle"></param>
/// <param name="min"></param>
/// <param name="max"></param>
/// <returns></returns>
private static float ClampAngle(float angle, float min, float max)
{
if (Mathf.Abs(angle) > 360)
{
angle = 0;
}
return Mathf.Clamp (angle, min, max);
}
/// <summary>
/// 获取当前的距离比率值
/// </summary>
/// <param name="dis">当前距离</param>
/// <returns></returns>
private float GetDistanceScale(float dis)
{
return (dis - minDistance) / (maxDistance - minDistance);
}
}温馨提示：该相机脚本实用与飞行器的相机，飞行器在飞行过程中，可360°观察状态^o^!文章来源地址https://www.toymoban.com/news/detail-509177.html
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