[name]
		Contains handy functions geometry manipulations.
		Methods
		 .merge( [page:Geometry geometry1] , [page:Geometry geometry2], [page:Integer materialIndexOffset] )
		
		geometry1 — Parent geometry element 
		geometry2 — Geometry that need to be added in parent 
		materialIndexOffset — Offset applied to the materialIndex of all the new faces in the merged geometry. Default : 0 
		
		 .randomPointInTriangle( [page:Vector VectorA] , [page:Vector VectorB]  , [page:Vector VectorC])
		
		VectorA — Vector  
		VectorB — Vector  
		VectorC — Vector  
		 returns [page:Int Point]
		
		
		 .center ( [page:Vector VectorA] , [page:Vector VectorB]  , [page:Vector VectorC]) 
		
		VectorA — Vector  
		VectorB — Vector  
		VectorC — Vector  
		returns [page:Int Area]
		
		 .center ( [page:Geometry geometry] ) 
		
		Geometry — Geometry to Center position
		
		Source
		[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]