Hello,
I'm relatively new to Unity and AR project and I'm stuck trying to dynamically add a 3D model to an Image Target. I have the following error and cannot understand where is the problem: error CS0246: The type or namespace name 'ITrackableEventHandler' could not be found (are you missing a using directive or an assembly reference?)
Here it is the code I'm using which's been taken from https://library.vuforia.com/content/vuforia-library/en/articles/Solution/Working-with-Vuforia-and-Unity.html#dynamically-add
using UnityEngine;
using Vuforia;
using System.Collections;
public class MyPrefabInstantiator : MonoBehaviour, ITrackableEventHandler {
private TrackableBehaviour mTrackableBehaviour;
public Transform myModelPrefab;
// Use this for initialization
void Start ()
{
mTrackableBehaviour = GetComponent<TrackableBehaviour>();
if (mTrackableBehaviour) {
mTrackableBehaviour.RegisterTrackableEventHandler(this);
}
}
// Update is called once per frame
void Update ()
{
}
public void OnTrackableStateChanged(
TrackableBehaviour.Status previousStatus,
TrackableBehaviour.Status newStatus)
{
if (newStatus == TrackableBehaviour.Status.DETECTED ||
newStatus == TrackableBehaviour.Status.TRACKED ||
newStatus == TrackableBehaviour.Status.EXTENDED_TRACKED)
{
OnTrackingFound();
}
}
private void OnTrackingFound()
{
if (myModelPrefab != null)
{
Transform myModelTrf = GameObject.Instantiate(myModelPrefab) as Transform;
myModelTrf.parent = mTrackableBehaviour.transform;
myModelTrf.localPosition = new Vector3(0f, 0f, 0f);
myModelTrf.localRotation = Quaternion.identity;
myModelTrf.localScale = new Vector3(0.0005f, 0.0005f, 0.0005f);
myModelTrf.gameObject.active = true;
}
}
}
Could anyone help me? Thanks in advance!
Had the similar issue, and just realised that the ITrackableEventHandler is obsolete. You can update the code snippets as below:
using UnityEngine;
using Vuforia;
using System.Collections;
public class MyPrefabInstantiator : DefaultTrackableEventHandler {
public Transform myModelPrefab;
protected override void OnTrackingFound()
{
base.OnTrackingFound();
if (myModelPrefab != null)
{
Transform myModelTrf = GameObject.Instantiate(myModelPrefab) as Transform;
myModelTrf.parent = mTrackableBehaviour.transform;
myModelTrf.localPosition = new Vector3(0f, 0f, 0f);
myModelTrf.localRotation = Quaternion.identity;
myModelTrf.localScale = new Vector3(0.0005f, 0.0005f, 0.0005f);
myModelTrf.gameObject.active = true;
}
}
}