Hello,
I'm making Hololens App that download vuforia database and print it in a GameObject on the scene. in the editor it works fine but when i run the app on Hololens it doesn't work i think the problem is with the path that im using to download de database i paste here some pieces of code
to show how im doing the downlaod
First i download the files in a script called LoadDatas
IEnumerator GetXML() { WWW www = new WWW(url); yield return www;
// var XML = www.text; System.IO.File.WriteAllBytes(Application.streamingAssetsPath + "/Vuforia/150.xml", www.bytes); }IEnumerator GetDAT() { WWW www = new WWW(url); yield return www;
System.IO.File.WriteAllBytes(Application.streamingAssetsPath + "/Vuforia/150.dat", www.bytes); }
Then in other script called LoaderDataSet print the object and more
void LoadDataSet() { objectTracker = TrackerManager.Instance.GetTracker<ObjectTracker>();
dataSet = objectTracker.CreateDataSet();
if (dataSet.Load(dataSetName)) { objectTracker.Stop(); // stop tracker so that we can add new dataset
if (!objectTracker.ActivateDataSet(dataSet)) { // Note: ImageTracker cannot have more than 100 total targets activated Debug.Log("<color=yellow>Failed to Activate DataSet: " + dataSetName + "</color>"); }
if (!objectTracker.Start()) { Debug.Log("<color=yellow>Tracker Failed to Start.</color>"); }
int counter = 0;
IEnumerable<TrackableBehaviour> tbs = TrackerManager.Instance.GetStateManager().GetTrackableBehaviours(); foreach (TrackableBehaviour tb in tbs) { if (tb.name == "New Game Object") {
// change generic name to include trackable name tb.gameObject.name = ++counter + ":DynamicImageTarget-" + tb.TrackableName;
// add additional script components for trackable tb.gameObject.AddComponent<DefaultTrackableEventHandler>(); tb.gameObject.AddComponent<TurnOffBehaviour>();
if (augmentationObject != null) { // instantiate augmentation object and parent to trackable GameObject augmentation = (GameObject)GameObject.Instantiate(augmentationObject); augmentation.transform.parent = tb.gameObject.transform; augmentation.transform.localPosition = new Vector3(0f, 0f, 0f); augmentation.transform.localRotation = Quaternion.identity; augmentation.transform.localScale = new Vector3(1f, 1f, 1f); augmentation.gameObject.SetActive(true); } else { Debug.Log("<color=yellow>Warning: No augmentation object specified for: " + tb.TrackableName + "</color>"); } } } } else { Debug.LogError("<color=yellow>Failed to load dataset: '" + dataSetName + "'</color>"); } }
Thanks in advance!
Can you give us more details
Can you give us more details about the error?
Your problem may be related to WWW lastest bug, which return error and content null in any case, please check if that is happening to you.