code: public void setWorldClip(Rectangle clip) {
  		if (clip == null) {
  			clearWorldClip();
  		} else {
  			setWorldClip(clip.getX(), clip.getY(), clip.getWidth(), clip
  					.getHeight());
  		}
  	}
docs: Set the world clip to be applied
  
  @see #setWorldClip(float, float, float, float)
  @param clip
  The area still visible