Gui.DrawTexture Working in Scene Mode, but not build or full game scene

Questions & Answers
1

Hello, I just started using Unity a couple of days ago, and I think I’m starting to get the hang of it, but not really.

Anyways, I’ve created this script to fade my scenes in and out, and it works when I preview the scene, but not when I build the game, or when I preview the game as a whole in the editor.

Here’s my C# script:

//this is our boolean to control when we want to fade out
	public static bool nextScene;

	public float duration = 0.5f;

	//our actual texture
	public Texture image;


	//create our GUI so that it will always draw on top
	void OnGUI () {
				//draw above our other guis
				GUI.depth = 0;
				fadeIn ();
				//now create our gui texture
				GUI.DrawTexture (new Rect (0, 0, Screen.width, Screen.height),
		                             image);
		}

	// Use this for initialization
	void Start () 
	{
		nextScene = false;
	}
	
	// Update is called once per frame
	void Update () 
	{
		if (nextScene) {
			fadeOut ();
				}
	}

	//function for fading in
	void fadeIn(){
		GUI.color = Color.Lerp(Color.black, Color.clear, Time.time * duration);
	}

	//function for fading out

		   void fadeOut(){
		GUI.color = Color.Lerp(Color.clear, Color.black, Time.time * duration);
		}

any help is appreciated, as I’ve been trying to figure this out for a while. Thank you!

2

I had the same issue, try setting your render path in the build options to vertex lit and see if that helps. Worked for me even after changing it back to forward.

3

Set your methods to public, or add an obfuscation attribute.
Upon building, these methods names get obfuscated. Since Unity finds these methods through Reflection, it does not run those methods anymore.