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Assets/Obi/Samples/Common/SampleResources/Scripts/FPSDisplay.cs

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+using UnityEngine;
+using UnityEngine.UI;
+using System.Collections;
+
+namespace Obi.Samples
+{
+    [RequireComponent(typeof(Text))]
+    public class FPSDisplay : MonoBehaviour
+    {
+        public float updateInterval = 0.5f;
+
+        public bool showMedian = false;
+        public float medianLearnrate = 0.05f;
+
+        private float accum = 0; // FPS accumulated over the interval
+        private int frames = 0; // Frames drawn over the interval
+        private float timeleft; // Left time for current interval
+        private float currentFPS = 0;
+
+        private float median = 0;
+        private float average = 0;
+
+        public float CurrentFPS
+        {
+            get { return currentFPS; }
+        }
+
+        public float FPSMedian
+        {
+            get { return median; }
+        }
+
+        public float FPSAverage
+        {
+            get { return average; }
+        }
+
+        Text uguiText;
+
+        void Start()
+        {
+            uguiText = GetComponent<Text>();
+            timeleft = updateInterval;
+        }
+
+        void Update()
+        {
+            // Timing inside the editor is not accurate. Only use in actual build.
+
+            //#if !UNITY_EDITOR
+
+            timeleft -= Time.deltaTime;
+            accum += Time.timeScale / Time.deltaTime;
+            ++frames;
+
+            // Interval ended - update GUI text and start new interval
+            if (timeleft <= 0.0)
+            {
+                currentFPS = accum / frames;
+
+                average += (Mathf.Abs(currentFPS) - average) * 0.1f;
+                median += Mathf.Sign(currentFPS - median) * Mathf.Min(average * medianLearnrate, Mathf.Abs(currentFPS - median));
+
+                // display two fractional digits (f2 format)
+                float fps = showMedian ? median : currentFPS;
+                uguiText.text = System.String.Format("{0:F2} FPS ({1:F1} ms)", fps, 1000.0f / fps);
+
+                timeleft = updateInterval;
+                accum = 0.0F;
+                frames = 0;
+            }
+            //#endif
+        }
+
+        public void ResetMedianAndAverage()
+        {
+            median = 0;
+            average = 0;
+        }
+    }
+}