connect( element ) {

		super.connect( element );

		window.addEventListener( 'keydown', this._onKeyDown );
		window.addEventListener( 'keyup', this._onKeyUp );

		this.domElement.addEventListener( 'pointerdown', this._onPointerDown );
		this.domElement.addEventListener( 'pointercancel', this._onPointerCancel );
		this.domElement.addEventListener( 'wheel', this._onMouseWheel, { passive: false } );
		this.domElement.addEventListener( 'contextmenu', this._onContextMenu );

		this.domElement.style.touchAction = 'none'; // disable touch scroll

	}
The focus point of the controls.

@type {Vector3}