[HoloLens2MRTK] ScenUnderstanding을 통해 설정된 대상을 만들 때의 이벤트 가져오기

우선 MRTK의 ScenUnderstainding은...

참조

https://qiita.com/Futo_Horio/items/2759f9ca2b892709ab66

https://redhologerbera.hatenablog.com/entry/2020/12/28/232605

바닥, 벽 등을 인식하고 간단한 그래픽을 구성할 수 있음

SceneUnderstanding에서 체크의 업데이트 빈도와 결과 객체를 설정할 수 있습니다.

그림에서 벽을 5초만 업데이트하고 대상을 생성합니다

컨디션

Unity v2019.4.18

MRTK v2.7.2

SceneUnderstanding v0.6.0

대상에 이벤트 추가 코드 가져오기

using Microsoft.MixedReality.Toolkit.Examples.Demos;
using Microsoft.MixedReality.Toolkit.Experimental.SpatialAwareness;
using Microsoft.MixedReality.Toolkit.SpatialAwareness;
using UnityEngine;

public class SceneUnderstandingController : DemoSpatialMeshHandler, IMixedRealitySpatialAwarenessObservationHandler<SpatialAwarenessSceneObject>
{
    protected override void Start()
    {
    }

     protected override void OnEnable()
    {
        RegisterEventHandlers<IMixedRealitySpatialAwarenessObservationHandler<SpatialAwarenessSceneObject>, SpatialAwarenessSceneObject>();
    }

    protected override void OnDisable()
    {
        UnregisterEventHandlers<IMixedRealitySpatialAwarenessObservationHandler<SpatialAwarenessSceneObject>, SpatialAwarenessSceneObject>();
    }

    protected override void OnDestroy()
    {
        UnregisterEventHandlers<IMixedRealitySpatialAwarenessObservationHandler<SpatialAwarenessSceneObject>, SpatialAwarenessSceneObject>();
    }

    public void OnObservationAdded(MixedRealitySpatialAwarenessEventData<SpatialAwarenessSceneObject> eventData)
    {
        Debug.Log("added!!");
        Debug.Log(eventData);
    }

    public void OnObservationUpdated(MixedRealitySpatialAwarenessEventData<SpatialAwarenessSceneObject> eventData)
    {
    }

    public void OnObservationRemoved(MixedRealitySpatialAwarenessEventData<SpatialAwarenessSceneObject> eventData)
    {
        Debug.Log("removed!!");
        Debug.Log(eventData);
    }

}

DemoSpatialMeshHandler MRTK의 Example을 넣고 Package Manager에서 Spatial Awarreness를 추가하면 사용 가능

전선
DemoSpatialMeshHandler

#region アセンブリ Microsoft.MixedReality.Toolkit.Examples, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null
// C:\Users\Honeycomb-lab\Documents\ono\LIXIL_holo2\LIXLI_holo2\Library\ScriptAssemblies\Microsoft.MixedReality.Toolkit.Examples.dll
#endregion

using Microsoft.MixedReality.Toolkit.SpatialAwareness;
using UnityEngine;
using UnityEngine.EventSystems;

namespace Microsoft.MixedReality.Toolkit.Examples.Demos
{
    [AddComponentMenu("Scripts/MRTK/Examples/DemoSpatialMeshHandler")]
    public class DemoSpatialMeshHandler : MonoBehaviour, IMixedRealitySpatialAwarenessObservationHandler<SpatialAwarenessMeshObject>, IEventSystemHandler
    {
        protected bool isRegistered;

        public DemoSpatialMeshHandler();

        public virtual void OnObservationAdded(MixedRealitySpatialAwarenessEventData<SpatialAwarenessMeshObject> eventData);
        public virtual void OnObservationRemoved(MixedRealitySpatialAwarenessEventData<SpatialAwarenessMeshObject> eventData);
        public virtual void OnObservationUpdated(MixedRealitySpatialAwarenessEventData<SpatialAwarenessMeshObject> eventData);
        protected void AddToData(int eventDataId);
        protected virtual void OnDestroy();
        protected virtual void OnDisable();
        protected virtual void OnEnable();
        protected virtual void RegisterEventHandlers<T, U>()
            where T : IMixedRealitySpatialAwarenessObservationHandler<U>
            where U : BaseSpatialAwarenessObject;
        protected void RemoveFromData(int eventDataId);
        protected virtual void Start();
        protected virtual void UnregisterEventHandlers<T, U>()
            where T : IMixedRealitySpatialAwarenessObservationHandler<U>
            where U : BaseSpatialAwarenessObject;
        protected void UpdateData(int eventDataId);
    }
}

그러고 보니 5초OnObservationRemoved 간격으로 검출된 벽과 바닥의 몇 분만 집행하고, 이어서OnObservationAdded 집행된 느낌
그래서 실제로 벽과 바닥의 대상은 반짝이는 것처럼 보인다

해결책은 지금 쓰고 있는데...