trols parameters depending on how many markers are visible in multiMarkerControls
		multiMarkerControls.updateSmoothedControls(smoothedControls, lerpsValues)
		// update multiMarkerRoot position
		smoothedControls.update(markerRoot)
	})

	var arWorldRoot = new THREE.Group()
	var averageMatrix = THREEx.ArMultiMarkerControls.computeCenter(multiMarkerFile)
	averageMatrix.decompose(arWorldRoot.position, arWorldRoot.quaternion, arWorldRoot.scale)
	smoothedRoot.add(arWorldRoot)

	/////////////////////////////////