Where on the screen is the camera rendered in normalized coordinates.

The values in rect range from zero (left/bottom) to one (right/top).

	// Change the width of the viewport each time space key is pressed
	function Update () {
		if (Input.GetButtonDown ("Jump")) {
			// choose the margin randomly
			var margin = Random.Range (0.0, 0.3);
			// setup the rectangle
			camera.rect = Rect (margin, 0, 1 - margin * 2, 1);
		}
	}