function getNormals( geometryNode ) {

								var NormalNode = geometryNode.subNodes.LayerElementNormal[ 0 ];

								var mappingType = NormalNode.properties.MappingInformationType;
								var referenceType = NormalNode.properties.ReferenceInformationType;
								var buffer = parseFloatArray( NormalNode.subNodes.Normals.properties.a );
								var indexBuffer = [];
								if ( referenceType === 'IndexToDirect' ) {

									indexBuffer = parseIntArray( NormalNode.subNodes.NormalIndex.properties.a );

								}

								return {
									dataSize: 3,
									buffer: buffer,
									indices: indexBuffer,
									mappingType: mappingType,
									referenceType: referenceType
								};

							}
Parses normal information for geometry.
@param {FBXGeometryNode} geometryNode
@returns {{dataSize: number, buffer: number[], indices: number[], mappingType: string, referenceType: string}}