45 lines
1.1 KiB
C#
45 lines
1.1 KiB
C#
using UnityEngine;
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/// <summary>
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/// 打印FPS
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/// </summary>
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public class FPS : MonoBehaviour
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{
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float _updateInterval = 1f;//设定更新帧率的时间间隔为1秒
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float _accum = .0f;//累积时间
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int _frames = 0;//在_updateInterval时间内运行了多少帧
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float _timeLeft;
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string fpsFormat;
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void Start()
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{
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_timeLeft = _updateInterval;
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}
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void OnGUI()
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{
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GUI.Label(new Rect(100, 100, 200, 200), fpsFormat);
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}
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void Update()
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{
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_timeLeft -= Time.deltaTime;
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//Time.timeScale可以控制Update 和LateUpdate 的执行速度,
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//Time.deltaTime是以秒计算，完成最后一帧的时间
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//相除即可得到相应的一帧所用的时间
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_accum += Time.timeScale / Time.deltaTime;
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++_frames;//帧数
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if (_timeLeft <= 0)
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{
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float fps = _accum / _frames;
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//Debug.Log(_accum + "__" + _frames);
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fpsFormat = System.String.Format("{0:F2}FPS", fps);//保留两位小数
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//Debug.LogError(fpsFormat);
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_timeLeft = _updateInterval;
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_accum = .0f;
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_frames = 0;
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}
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}
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} |