Camera Fader script

//Camera Fader

var fadeOutTexture : Texture2D;
var fadeSpeed = 0.3;
var drawDepth = -1000;
private var alpha = 1.0;
private var fadeDir = -1;


function OnGUI()
{
    alpha += fadeDir * fadeSpeed * Time.deltaTime;
    alpha = Mathf.Clamp01(alpha);

    GUI.color.a = alpha;

    GUI.depth = drawDepth;

    GUI.DrawTexture(Rect(0, 0, Screen.width, Screen.height), fadeOutTexture);
}

function fadeIn(){
    fadeDir = -1;
}
function fadeOut(){
    fadeDir = 1;
}
function Start()
{
    alpha=1;
    fadeIn();
}