--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Orchestland/Assets/OVR/Scripts/Util/OVRScreenFade.cs	Fri Jul 17 23:23:43 2015 +0900
@@ -0,0 +1,122 @@
+/************************************************************************************
+
+Copyright   :   Copyright 2014 Oculus VR, LLC. All Rights reserved.
+
+Licensed under the Oculus VR Rift SDK License Version 3.2 (the "License");
+you may not use the Oculus VR Rift SDK except in compliance with the License,
+which is provided at the time of installation or download, or which
+otherwise accompanies this software in either electronic or hard copy form.
+
+You may obtain a copy of the License at
+
+http://www.oculusvr.com/licenses/LICENSE-3.2
+
+Unless required by applicable law or agreed to in writing, the Oculus VR SDK
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+************************************************************************************/
+
+using UnityEngine;
+using System.Collections; // required for Coroutines
+
+/// <summary>
+/// Fades the screen from black after a new scene is loaded.
+/// </summary>
+public class OVRScreenFade : MonoBehaviour
+{
+	/// <summary>
+	/// How long it takes to fade.
+	/// </summary>
+	public float fadeTime = 2.0f;
+
+	/// <summary>
+	/// The initial screen color.
+	/// </summary>
+	public Color fadeColor = new Color(0.01f, 0.01f, 0.01f, 1.0f);
+
+	/// <summary>
+	/// The shader to use when rendering the fade.
+	/// </summary>
+	public Shader fadeShader = null;
+
+	private Material fadeMaterial = null;
+	private bool isFading = false;
+
+	/// <summary>
+	/// Initialize.
+	/// </summary>
+	void Awake()
+	{
+		// create the fade material
+		fadeMaterial = (fadeShader != null) ? new Material(fadeShader) : new Material(Shader.Find("Transparent/Diffuse"));
+	}
+
+	/// <summary>
+	/// Starts the fade in
+	/// </summary>
+	void OnEnable()
+	{
+		StartCoroutine(FadeIn());
+	}
+
+	/// <summary>
+	/// Starts a fade in when a new level is loaded
+	/// </summary>
+	void OnLevelWasLoaded(int level)
+	{
+		StartCoroutine(FadeIn());
+	}
+
+	/// <summary>
+	/// Cleans up the fade material
+	/// </summary>
+	void OnDestroy()
+	{
+		if (fadeMaterial != null)
+		{
+			Destroy(fadeMaterial);
+		}
+	}
+
+	/// <summary>
+	/// Fades alpha from 1.0 to 0.0
+	/// </summary>
+	IEnumerator FadeIn()
+	{
+		float elapsedTime = 0.0f;
+		Color color = fadeMaterial.color = fadeColor;
+		isFading = true;
+		while (elapsedTime < fadeTime)
+		{
+			yield return new WaitForEndOfFrame();
+			elapsedTime += Time.deltaTime;
+			color.a = 1.0f - Mathf.Clamp01(elapsedTime / fadeTime);
+			fadeMaterial.color = color;
+		}
+		isFading = false;
+	}
+
+	/// <summary>
+	/// Renders the fade overlay when attached to a camera object
+	/// </summary>
+	void OnPostRender()
+	{
+		if (isFading)
+		{
+			fadeMaterial.SetPass(0);
+			GL.PushMatrix();
+			GL.LoadOrtho();
+			GL.Color(fadeMaterial.color);
+			GL.Begin(GL.QUADS);
+			GL.Vertex3(0f, 0f, -12f);
+			GL.Vertex3(0f, 1f, -12f);
+			GL.Vertex3(1f, 1f, -12f);
+			GL.Vertex3(1f, 0f, -12f);
+			GL.End();
+			GL.PopMatrix();
+		}
+	}
+}