Sample Code - How to save RenderTexture to file

[Unity3d] How to save RenderTexture to file

	public static void Save(this RenderTexture renderTexture, string file)
	{
		RenderTexture.active = renderTexture;
		Texture2D texture = new Texture2D(renderTexture.width, renderTexture.height, TextureFormat.ARGB32, false, false);
		texture.ReadPixels(new Rect(0, 0, renderTexture.width, renderTexture.height), 0, 0);
		texture.Apply();

		byte[] bytes = texture.EncodeToPNG();
		UnityEngine.Object.Destroy(texture);

		System.IO.File.WriteAllBytes(file, bytes);

	}