public void rotate(double leftright, double updown) {
		if (leftright != 0) {
			screencanvas.rotate(Player.p.getEyepos(), leftright);

		}
		if (updown != 0) {
			// screencanvas.getNormalVector().set(
			// VectorUtils.mulitply(Matrix3D.getRotationMatrix(
			// Math.toRadians(updown), Matrix3D.AXIS_X),
			// screencanvas.getNormalVector()));
		}

	}