Save ScreenShot with transparency in Different Resolution

Unity Engine
1

Hi every one, im working in a Script that save the screenshot in PNG with transparency background.

here my code

var SSName:String = "screen_test";

private var display: Renderer;
    
    function Update ()
{
	if(Input.GetKeyUp ("space")){
	ScreenShot();
	}
}
	
function ScreenShot(){
  
   	    //var width = Screen.width;
   	    //var height = Screen.height;
   	    var width = 3000;
   	    var height = 1500;
   	    var tex = new Texture2D (width, height, TextureFormat.ARGB32, false);
		
		tex.ReadPixels (Rect(0, 0, width, height), 0, 0);
		tex.Apply ();
       	RenderTexture.active = null;
		
       	var bytes = tex.EncodeToPNG();
       	Destroy (tex);
       	System.IO.File.WriteAllBytes(SSName + ".png", bytes);

}

All works great! the problem i have is that i want to change the resolution of the screenshot to 3000x1500.

When I change it by code i got a this error.

Trying to read pixel out of bounds

And save a screenshot in gray color.

any idea way if i change the resolution the screenshot is saved in graycolor?

thanks

2

Wouldn’t it be width - 1, height - 1?