2RAD, 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.normalizeRotations().reset( true )">reset</button>
</div>

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