 cursor</label>
	<br>
	<button onclick="cameraControls.rotate(  45 * THREE.MathUtils.DEG2RAD, 0, true )">rotate theta 45deg</button>
	<button onclick="cameraControls.rotate( -90 * THREE.MathUtils.DEG2RAD, 0, true )">rotate theta -90deg</button>
	<button onclick="cameraControls.rotate( 360 * THREE.MathUtils.DEG2RAD, 0, true )">rotate theta 360deg</button>
	<button onclick="cameraControls.rotate( 0, 20 * THREE.MathUtils.DEG2RAD, true )">rotate phi 20deg</button>
	<br>
	<button onclick="cameraControls.normaliz