code: function ( callbackOnFinishedProcessing ) {
  		if ( this.logging.enabled ) console.info( 'WorkerDirector received the deregister call. Terminating all workers!' );
  
  		this.instructionQueuePointer = this.instructionQueue.length;
  		this.callbackOnFinishedProcessing = THREE.LoaderSupport.Validator.verifyInput( callbackOnFinishedProcessing, null );
  
  		for ( var name in this.workerDescription.workerSupports ) {
  
  			this.workerDescription.workerSupports[ name ].terminateRequested = true;
  
  		}
  	}
docs: Terminate all workers.
  
  @param {callback} callbackOnFinishedProcessing Function called once all workers finished processing.