代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;using UnityEngine;public class Frame : MonoBehaviour
{// 记录帧数private int _frame;// 上一次计算帧率的时间private float _lastTime;// 平均每一帧的时间private float _frameDeltaTime;// 间隔多长时间(秒)计算一次帧率private float _Fps;private const float _timeInterval = 0.5f;void Start(){_lastTime = Time.realtimeSinceStartup;}void Update(){FrameCalculate();}private void FrameCalculate(){_frame++;if (Time.realtimeSinceStartup - _lastTime < _timeInterval){return;}float time = Time.realtimeSinceStartup - _lastTime;_Fps = _frame / time;_frameDeltaTime = time / _frame;_lastTime = Time.realtimeSinceStartup;_frame = 0;}private void OnGUI(){string msg = string.Format("<color=red><size=30>FPS:{0}   ms:{1}</size></color>",(int) _Fps , (int)(_frameDeltaTime *1000));GUI.Label(new Rect(Screen.width-230, 0, 500, 150), msg);var timeNow = System.DateTime.Now;string time = string.Format("<color=green><size=30>{0}</size></color>", timeNow);GUI.Label(new Rect(Screen.width/2-200, 2, 600, 50), time);}
}

将脚本挂载到相机上面

效果