상속: BaseEffect
		public void TileEffect2 ()
		{
			var src = GetSourceImage ("input.png");

			var effect = new TileEffect (90, 80, 14);
			effect.Render (src);

			Compare (src, "tile2.png");
		}
		public void TileEffect1 ()
		{
			var src = GetSourceImage ("input.png");

			var effect = new TileEffect ();
			effect.Render (src);

			Compare (src, "tile1.png");
		}