[page:Object3D] →
		[name]
		Creates a visual aid for a [page:HemisphereLight HemisphereLight].
		Constructor
		[name]([page:HemisphereLight light], [page:Number sphereSize])
		
		light -- The HemisphereLight. 
		sphereSize -- The size of the sphere that shows the location.
		
		
		Creates an helper for the hemispherelight.
		
		Properties
		[property:Mesh lightSphere]
		
		The sphere mesh that shows the location of the hemispherelight.
		
		[property:HemisphereLight light]
		
		Contains the HemisphereLight.
		
		Methods
		[method:null update]()
		
		Updates the helper to match the position and direction of the [page:.light].
		
		Source
		[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]