lvjincheng_infraredlocategamepc/Assets/GameDemo/FPSTester.cs

using UnityEngine;

public class FPSTester : MonoBehaviour
{
    private float fpsOutputTime;
    private float frameCount;
    private float fps;
    private float tempDT;
    private Rect fpsGuiRect = new Rect(Screen.width / 50, Screen.height / 50, 100, 100);

    void Update()
    {
        frameCount++;
        tempDT = Time.realtimeSinceStartup - fpsOutputTime;
        if (tempDT >= 1)
        {
            fpsOutputTime = Time.realtimeSinceStartup;
            fps = Mathf.FloorToInt(frameCount / tempDT);
            frameCount = 0;
        }
    }

    void OnGUI()
    {
        GUI.Label(fpsGuiRect, "FPS: " + fps);
    }
}