constructor( manager ) {

		super( manager );

		/**
		 * Represents a dictionary of node types.
		 *
		 * @type {Object<string,Node.constructor>}
		 */
		this.nodes = {};

		/**
		 * Represents a dictionary of node material types.
		 *
		 * @type {Object<string,NodeMaterial.constructor>}
		 */
		this.nodeMaterials = {};

	}
Constructs a new node material loader.

@param {LoadingManager} [manager] - A reference to a loading manager.