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Assets/ThirdParty/DestroyIt/Demos (safe to delete)/Scripts/Effects/FadeIn.cs

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+using UnityEngine;
+
+namespace DestroyIt
+{
+    /// <summary>
+    /// This script produces a screen-wide fade-in effect. It starts from one color and fades that color out over the specified number of seconds.
+    /// </summary>
+    public class FadeIn : MonoBehaviour
+    {
+        public Color startColor = Color.black;
+        [Range(0f, 10f)]
+        public float fadeLength = 2f;   // how long (in seconds) the fade effect lasts 
+
+        private Texture2D blackTexture;
+        private float alphaFadeValue = 1f;
+
+        void Start()
+        {
+            blackTexture = new Texture2D(1, 1, TextureFormat.ARGB32, false);
+            blackTexture.SetPixel(0, 0, startColor);
+            blackTexture.Apply();
+        }
+
+        void Update()
+        {
+            alphaFadeValue -= Mathf.Clamp01(Time.deltaTime / fadeLength);
+
+            if (alphaFadeValue <= 0f)
+                Destroy(this);
+        }
+
+        void OnGUI()
+        {
+            GUI.color = new Color(alphaFadeValue, alphaFadeValue, alphaFadeValue, alphaFadeValue);
+            GUI.DrawTexture(new Rect(0, 0, Screen.width, Screen.height), blackTexture);
+        }
+    }
+}