BABYLONX.GeometryBuilder  Babylon Extensions > GeometryBuilder structure    :  Builder : function that take setting and Append Vertex and make face geoBuilder1 : Convert Buffer To Babylon Js Geometry    var geoBuilder1 = function (op) {               var builder  = function (setting , geo) {   // use geometryBuilder function for make face and vertex };                 return new BABYLONX.Geometry(GB.GeometryBase(op, builder, null ));  }