// initializes the AR-Core components
private void InitArCore()
{
//Debug.Log("InitArCore started.");
// disable the main camera, if any
Camera currentCamera = MultiARInterop.GetMainCamera();
if (currentCamera)
{
currentCamera.gameObject.SetActive(false);
}
// create ARCore-Device in the scene
arCoreDeviceObj = Instantiate(arCoreDevicePrefab, Vector3.zero, Quaternion.identity);
arCoreDeviceObj.name = "ARCore Device";
DontDestroyOnLoad(arCoreDeviceObj);
// get background material
arCodeRenderer = FindObjectOfType <ARCoreBackgroundRenderer>();
if (arCodeRenderer)
{
backgroundMat = arCodeRenderer.BackgroundMaterial;
}
// update the session config, if needed
ARCoreSession arSession = arCoreDeviceObj.GetComponent <ARCoreSession>();
if (arSession != null && arSession.SessionConfig != null && arImageDatabase != null)
{
arSession.SessionConfig.AugmentedImageDatabase = arImageDatabase;
}
// reference to the AR main camera
mainCamera = arCoreDeviceObj.GetComponentInChildren <Camera>();
// // disable directional light, if any
// Light currentLight = MultiARInterop.GetDirectionalLight();
// if(currentLight)
// {
// currentLight.gameObject.SetActive(false);
// }
//
// // create AR environmental light
// GameObject envLight = new GameObject("Evironmental Light");
// //envLight.transform.position = Vector3.zero;
// //envLight.transform.rotation = Quaternion.identity;
// envLight.AddComponent<EnvironmentalLight>();
//
// // reference to the AR directional light
// //directionalLight = envLight.GetComponent<Light>();
// modify the directional light
Light currentLight = MultiARInterop.GetDirectionalLight();
if (!currentLight)
{
GameObject currentLightObj = new GameObject("Directional light");
currentLight = currentLightObj.AddComponent <Light>();
currentLight.type = LightType.Directional;
}
// reset light position & rotation
currentLight.transform.position = Vector3.zero;
currentLight.transform.rotation = Quaternion.Euler(40f, 40f, 0f);
DontDestroyOnLoad(currentLight.gameObject);
// set light parameters
//currentLight.lightmapBakeType = LightmapBakeType.Mixed;
currentLight.color = new Color32(255, 254, 244, 255);
// add the ar-light component
currentLight.gameObject.AddComponent <MultiARDirectionalLight>();
// get ar-data
MultiARInterop.MultiARData arData = arManager ? arManager.GetARData() : null;
if (arManager && arManager.usePointCloudData)
{
arData.pointCloudData = new Vector3[MultiARInterop.MAX_POINT_COUNT];
arData.pointCloudLength = 0;
arData.pointCloudTimestamp = 0.0;
}
// create surface renderer
if (arManager && arData != null)
{
arData.surfaceRendererRoot = new GameObject();
arData.surfaceRendererRoot.name = "SurfaceRenderer";
DontDestroyOnLoad(arData.surfaceRendererRoot);
}
// interface is initialized
isInitialized = true;
//Debug.Log("InitArCore finished.");
}
// -- // -- // -- // -- // -- // -- // -- // -- // -- // -- //
void Start()
{
if (!isInterfaceEnabled)
{
return;
}
// determine if display is opaque or transparent
isDisplayOpaque = HolographicSettings.IsDisplayOpaque;
Debug.Log("Display: " + (isDisplayOpaque ? "Opaque" : "Transparent"));
// modify the main camera in the scene
Camera currentCamera = MultiARInterop.GetMainCamera();
if (!currentCamera)
{
GameObject currentCameraObj = new GameObject("Main Camera");
currentCameraObj.tag = "MainCamera";
currentCamera = currentCameraObj.AddComponent <Camera>();
}
// reset camera position & rotation
//currentCamera.transform.position = Vector3.zero;
currentCamera.transform.rotation = Quaternion.identity;
// set camera parameters
currentCamera.clearFlags = CameraClearFlags.SolidColor;
currentCamera.backgroundColor = new Color(0f, 0f, 0f, 0f);
currentCamera.nearClipPlane = 0.5f; // HoloLens recommended
currentCamera.farClipPlane = 100f;
if (isDisplayOpaque)
{
currentCamera.clearFlags = CameraClearFlags.Skybox;
}
// set the fastest quality setting
QualitySettings.SetQualityLevel((int)qualityLevel);
Debug.Log("QualityLevel: " + QualitySettings.names[(int)qualityLevel]);
// reference to the AR main camera
mainCamera = currentCamera;
// don't destroy the light between scenes
DontDestroyOnLoad(currentCamera.gameObject);
// // add camera parent
// if(currentCamera.transform.parent == null)
// {
// GameObject cameraParent = new GameObject("CameraParent");
// currentCamera.transform.SetParent(cameraParent.transform);
// }
// modify the directional light
Light currentLight = MultiARInterop.GetDirectionalLight();
if (!currentLight)
{
GameObject currentLightObj = new GameObject("Directional light");
currentLight = currentLightObj.AddComponent <Light>();
currentLight.type = LightType.Directional;
}
// reset light position & rotation
currentLight.transform.position = Vector3.zero;
currentLight.transform.rotation = Quaternion.Euler(40f, 40f, 0f);
// set light parameters
currentLight.color = new Color32(255, 254, 244, 255);
// add the ar-light component
//currentLight.gameObject.AddComponent<MultiARDirectionalLight>();
// reference to the AR directional light
//directionalLight = currentLight;
// don't destroy the light between scenes
DontDestroyOnLoad(currentLight.gameObject);
// there is no point cloud in WinMR
MultiARInterop.MultiARData arData = arManager.GetARData();
// check for point cloud getter
if (arManager.pointCloudPrefab != null)
{
arData.pointCloudData = new Vector3[0];
arData.pointCloudLength = 0;
arData.pointCloudTimestamp = 0.0;
}
// set tracking state
cameraTrackingState = WorldManager.state;
WorldManager.OnPositionalLocatorStateChanged += WorldManager_OnPositionalLocatorStateChanged;
// // set tracking space type
// Debug.Log("Before: " + XRDevice.GetTrackingSpaceType());
// if(XRDevice.GetTrackingSpaceType() != TrackingSpaceType.Stationary)
// {
// if(!XRDevice.SetTrackingSpaceType(TrackingSpaceType.Stationary))
// {
// Debug.LogError("Cannot set stationary space type!");
// }
// }
// create gesture input
if (!isDisplayOpaque)
{
gestureRecognizer = new GestureRecognizer();
gestureRecognizer.SetRecognizableGestures(GestureSettings.Tap | GestureSettings.Hold |
GestureSettings.NavigationX | GestureSettings.NavigationY | GestureSettings.NavigationZ);
gestureRecognizer.Tapped += GestureRecognizer_Tapped;
// gestureRecognizer.HoldStarted += GestureRecognizer_HoldStarted;
// gestureRecognizer.HoldCompleted += GestureRecognizer_HoldCompleted;
// gestureRecognizer.HoldCanceled += GestureRecognizer_HoldCanceled;
gestureRecognizer.NavigationStarted += GestureRecognizer_NavigationStarted;
gestureRecognizer.NavigationUpdated += GestureRecognizer_NavigationUpdated;
gestureRecognizer.NavigationCompleted += GestureRecognizer_NavigationCompleted;
gestureRecognizer.NavigationCanceled += GestureRecognizer_NavigationCanceled;
gestureRecognizer.StartCapturingGestures();
Debug.Log("Gesture recognizer inited and started.");
}
//else
{
// init interaction manager
// InteractionManager.InteractionSourcePressed += InteractionManager_InteractionSourcePressed;
// InteractionManager.InteractionSourceUpdated += InteractionManager_InteractionSourceUpdated;
// InteractionManager.InteractionSourceReleased += InteractionManager_InteractionSourceReleased;
InteractionManager.InteractionSourceDetected += InteractionManager_InteractionSourceDetected;
InteractionManager.InteractionSourceLost += InteractionManager_InteractionSourceLost;
InteractionManager.InteractionSourceUpdated += InteractionManager_InteractionSourceUpdated;
Debug.Log("Interaction manager inited.");
}
// create surface renderer
if (arManager.useOverlaySurface != MultiARManager.SurfaceRenderEnum.None)
{
GameObject objRenderer = new GameObject();
objRenderer.name = "SurfaceRenderer";
objRenderer.layer = MultiARInterop.GetSurfaceLayer();
arData.surfaceRendererRoot = objRenderer;
surfaceRootTransform = objRenderer.transform;
DontDestroyOnLoad(objRenderer);
if (!isDisplayOpaque)
{
// hololens
surfaceRenderer = objRenderer.AddComponent <SpatialMappingRenderer>();
surfaceRenderer.surfaceParent = objRenderer;
switch (arManager.useOverlaySurface)
{
case MultiARManager.SurfaceRenderEnum.None:
surfaceRenderer.renderState = SpatialMappingRenderer.RenderState.None;
break;
case MultiARManager.SurfaceRenderEnum.Visualization:
surfaceRenderer.renderState = SpatialMappingRenderer.RenderState.Visualization;
break;
case MultiARManager.SurfaceRenderEnum.Occlusion:
case MultiARManager.SurfaceRenderEnum.OcclusionWithShadows:
surfaceRenderer.renderState = SpatialMappingRenderer.RenderState.Occlusion;
break;
}
if (arManager.useOverlaySurface != MultiARManager.SurfaceRenderEnum.None)
{
surfaceRenderer.visualMaterial = arManager.surfaceVisualizationMaterial;
surfaceRenderer.occlusionMaterial = arManager.useOverlaySurface == MultiARManager.SurfaceRenderEnum.OcclusionWithShadows ?
arManager.surfaceOcclusionWithShadowsMaterial : arManager.surfaceOcclusionMaterial;
}
}
else
{
// use special surface material on opaque displays
Material visualMaterial = arManager.GetSurfaceMaterial();
if (arManager.useOverlaySurface == MultiARManager.SurfaceRenderEnum.Visualization && vrSurfaceMaterial)
{
visualMaterial = vrSurfaceMaterial;
}
// mr headsets
CreateBoundaryPlane(objRenderer.transform, visualMaterial, arManager.surfaceCollider, arManager.colliderMaterial);
boundaryMgr = objRenderer.AddComponent <HoloToolkit.Unity.Boundary.BoundaryManager>();
boundaryMgr.FloorQuad = boundaryPlane;
boundaryMgr.AwakeBoundaryManager();
}
}
// create surface collider
if (arManager.surfaceCollider)
{
GameObject objCollider = new GameObject();
objCollider.name = "SurfaceCollider";
objCollider.layer = MultiARInterop.GetSurfaceLayer();
DontDestroyOnLoad(objCollider);
if (!isDisplayOpaque)
{
// hololens
surfaceCollider = objCollider.AddComponent <SpatialMappingCollider>();
surfaceCollider.surfaceParent = objCollider;
surfaceCollider.lodType = SpatialMappingBase.LODType.Low;
surfaceCollider.layer = MultiARInterop.GetSurfaceLayer();
if (arManager.colliderMaterial)
{
surfaceCollider.material = arManager.colliderMaterial;
}
}
else
{
// mr headsets
if (boundaryPlane == null)
{
// there was no boundary rendering
CreateBoundaryPlane(objCollider.transform, null, true, arManager.colliderMaterial);
boundaryMgr = objCollider.AddComponent <HoloToolkit.Unity.Boundary.BoundaryManager>();
boundaryMgr.FloorQuad = boundaryPlane;
boundaryMgr.AwakeBoundaryManager();
}
}
}
// // if camera is too near to the floor, lower the floor 1.5 meter below the camera
// if(currentCamera && boundaryMgr)
// {
// if(currentCamera.transform.position.y < 0.1f)
// {
// boundaryMgr.CurrentFloorHeightOffset = currentCamera.transform.position.y - 1.5f;
// Debug.Log(string.Format("FloorHeightOffset set below the camera at {0:F2}m.", boundaryMgr.CurrentFloorHeightOffset));
// }
// }
// starts co-routine to check rendered surfaces
StartCoroutine(CheckSurfacesRoutine());
Debug.Log("TrackingSpaceType: " + XRDevice.GetTrackingSpaceType());
Debug.Log("Screen size: " + Screen.width + " x " + Screen.height);
int surfaceLayer = MultiARInterop.GetSurfaceLayer(); // LayerMask.NameToLayer("SpatialSurface");
Debug.Log("SpatialSurfaceLayer: " + surfaceLayer);
// interface is initialized
isInitialized = true;
}
// -- // -- // -- // -- // -- // -- // -- // -- // -- // -- //
void Start()
{
if (!isInterfaceEnabled)
{
return;
}
if (!yuvMaterial)
{
Debug.LogError("ARKit-interface cannot start: YuvMaterial is not set.");
return;
}
// modify the main camera in the scene
Camera currentCamera = MultiARInterop.GetMainCamera();
if (!currentCamera)
{
GameObject currentCameraObj = new GameObject("Main Camera");
currentCameraObj.tag = "MainCamera";
currentCamera = currentCameraObj.AddComponent <Camera>();
}
// reset camera position & rotation
currentCamera.transform.position = Vector3.zero;
currentCamera.transform.rotation = Quaternion.identity;
// set camera parameters
currentCamera.clearFlags = CameraClearFlags.Depth;
currentCamera.nearClipPlane = 0.1f;
currentCamera.farClipPlane = 30f;
// reference to the AR main camera
mainCamera = currentCamera;
// add camera parent
if (currentCamera.transform.parent == null)
{
GameObject cameraParent = new GameObject("CameraParent");
currentCamera.transform.SetParent(cameraParent.transform);
DontDestroyOnLoad(cameraParent);
}
else
{
DontDestroyOnLoad(currentCamera.transform.root.gameObject);
}
// add the needed camera components
arVideoRenderer = currentCamera.gameObject.AddComponent <UnityARVideo>();
arVideoRenderer.m_ClearMaterial = yuvMaterial;
backgroundMat = yuvMaterial;
currentCamera.gameObject.AddComponent <UnityARCameraNearFar>();
// modify the directional light
Light currentLight = MultiARInterop.GetDirectionalLight();
if (!currentLight)
{
GameObject currentLightObj = new GameObject("Directional light");
currentLight = currentLightObj.AddComponent <Light>();
currentLight.type = LightType.Directional;
}
// reset light position & rotation
currentLight.transform.position = Vector3.zero;
currentLight.transform.rotation = Quaternion.Euler(40f, 40f, 0f);
DontDestroyOnLoad(currentLight.gameObject);
// set light parameters
//currentLight.lightmapBakeType = LightmapBakeType.Mixed;
currentLight.color = new Color32(255, 254, 244, 255);
// add the ar-light component
currentLight.gameObject.AddComponent <MultiARDirectionalLight>();
// reference to the AR directional light
//directionalLight = currentLight;
// create camera manager
GameObject camManagerObj = new GameObject("ARCameraManager");
DontDestroyOnLoad(camManagerObj);
UnityARCameraManager camManager = camManagerObj.AddComponent <UnityARCameraManager>();
camManager.m_camera = currentCamera;
camManager.startAlignment = cameraAlignment;
camManager.planeDetection = UnityARPlaneDetection.HorizontalAndVertical;
//Debug.Log("arImageDatabase: " + (arImageDatabase != null ? arImageDatabase.resourceGroupName : "-"));
if (arImageDatabase != null)
{
camManager.detectionImages = arImageDatabase;
Debug.Log("camManager.detectionImages set to: " + arImageDatabase);
}
// allow relocalization after session interruption
UnityARSessionNativeInterface.ARSessionShouldAttemptRelocalization = true;
// get ar-data
MultiARInterop.MultiARData arData = arManager ? arManager.GetARData() : null;
// check for point cloud getter
if (arManager && arManager.pointCloudPrefab != null)
{
arData.pointCloudData = new Vector3[0];
arData.pointCloudLength = 0;
arData.pointCloudTimestamp = 0.0;
}
// create surface renderer
if (arManager && arData != null)
{
arData.surfaceRendererRoot = new GameObject();
arData.surfaceRendererRoot.name = "SurfaceRenderer";
DontDestroyOnLoad(arData.surfaceRendererRoot);
}
// // check for tracked plane display
// if(arManager.displayTrackedSurfaces && trackedPlanePrefab)
// {
// UnityARUtility.InitializePlanePrefab(trackedPlanePrefab);
// }
// add needed events
UnityARSessionNativeInterface.ARFrameUpdatedEvent += ARFrameUpdated;
UnityARSessionNativeInterface.ARSessionTrackingChangedEvent += ARSessionTrackingChanged;
UnityARSessionNativeInterface.ARAnchorAddedEvent += PlaneAnchorAdded;
UnityARSessionNativeInterface.ARAnchorUpdatedEvent += PlaneAnchorUpdated;
UnityARSessionNativeInterface.ARAnchorRemovedEvent += PlaneAnchorRemoved;
UnityARSessionNativeInterface.ARUserAnchorAddedEvent += UserAnchorAdded;
UnityARSessionNativeInterface.ARUserAnchorRemovedEvent += UserAnchorRemoved;
// create ARCoreSession component, if the cloud functionality is used
GoogleARCore.ARCoreSession arCoreSession = gameObject.GetComponent <GoogleARCore.ARCoreSession>();
if (arCoreSession == null)
{
TextAsset cloudApiKey = Resources.Load("RuntimeSettings/CloudServicesApiKey") as TextAsset;
if (cloudApiKey != null)
{
arCoreSession = gameObject.AddComponent <GoogleARCore.ARCoreSession>();
}
}
// interface is initialized
isInitialized = true;
}
// -- // -- // -- // -- // -- // -- // -- // -- // -- // -- //
void Start()
{
if (!isInterfaceEnabled)
{
return;
}
if (!metaCameraRigPrefab)
{
Debug.LogError("Meta2-interface cannot start: MetaCameraRig-prefab is not set.");
return;
}
// disable the main camera, if any
Camera currentCamera = MultiARInterop.GetMainCamera();
if (currentCamera)
{
currentCamera.gameObject.SetActive(false);
}
// create ARCore-Device in the scene
GameObject arCoreDeviceObj = Instantiate(metaCameraRigPrefab, Vector3.zero, Quaternion.identity);
arCoreDeviceObj.name = "ARCore Device";
DontDestroyOnLoad(arCoreDeviceObj);
// reference to the AR main camera
mainCamera = arCoreDeviceObj.GetComponentInChildren <Camera>();
// // add camera parent
// if(currentCamera.transform.parent == null)
// {
// GameObject cameraParent = new GameObject("CameraParent");
// currentCamera.transform.SetParent(cameraParent.transform);
// }
// modify the directional light
Light currentLight = MultiARInterop.GetDirectionalLight();
if (!currentLight)
{
GameObject currentLightObj = new GameObject("Directional light");
currentLight = currentLightObj.AddComponent <Light>();
currentLight.type = LightType.Directional;
}
// reset light position & rotation
currentLight.transform.position = Vector3.zero;
currentLight.transform.rotation = Quaternion.Euler(40f, 40f, 0f);
// set light parameters
currentLight.color = new Color32(255, 254, 244, 255);
// add the ar-light component
//currentLight.gameObject.AddComponent<MultiARDirectionalLight>();
// reference to the AR directional light
//directionalLight = currentLight;
// don't destroy the light between scenes
DontDestroyOnLoad(currentLight.gameObject);
// there is no point cloud in WinMR
MultiARInterop.MultiARData arData = arManager.GetARData();
// check for point cloud getter
if (arManager.pointCloudPrefab != null)
{
arData.pointCloudData = new Vector3[0];
arData.pointCloudLength = 0;
arData.pointCloudTimestamp = 0.0;
}
// set tracking state
cameraTrackingState = WorldManager.state;
WorldManager.OnPositionalLocatorStateChanged += WorldManager_OnPositionalLocatorStateChanged;
// // set tracking space type
// Debug.Log("Before: " + XRDevice.GetTrackingSpaceType());
// if(XRDevice.GetTrackingSpaceType() != TrackingSpaceType.Stationary)
// {
// if(!XRDevice.SetTrackingSpaceType(TrackingSpaceType.Stationary))
// {
// Debug.LogError("Cannot set stationary space type!");
// }
// }
// create gesture input
if (!isDisplayOpaque)
{
gestureRecognizer = new GestureRecognizer();
gestureRecognizer.SetRecognizableGestures(GestureSettings.Tap | GestureSettings.Hold |
GestureSettings.NavigationX | GestureSettings.NavigationY | GestureSettings.NavigationZ);
gestureRecognizer.Tapped += GestureRecognizer_Tapped;
// gestureRecognizer.HoldStarted += GestureRecognizer_HoldStarted;
// gestureRecognizer.HoldCompleted += GestureRecognizer_HoldCompleted;
// gestureRecognizer.HoldCanceled += GestureRecognizer_HoldCanceled;
gestureRecognizer.NavigationStarted += GestureRecognizer_NavigationStarted;
gestureRecognizer.NavigationUpdated += GestureRecognizer_NavigationUpdated;
gestureRecognizer.NavigationCompleted += GestureRecognizer_NavigationCompleted;
gestureRecognizer.NavigationCanceled += GestureRecognizer_NavigationCanceled;
gestureRecognizer.StartCapturingGestures();
Debug.Log("Gesture recognizer inited and started.");
}
else
{
InteractionManager.InteractionSourcePressed += InteractionManager_InteractionSourcePressed;
InteractionManager.InteractionSourceUpdated += InteractionManager_InteractionSourceUpdated;
InteractionManager.InteractionSourceReleased += InteractionManager_InteractionSourceReleased;
Debug.Log("Interaction manager inited.");
}
// create surface renderer
if (arManager.useOverlaySurface != MultiARManager.SurfaceRenderEnum.None)
{
GameObject objRenderer = new GameObject();
objRenderer.name = "SurfaceRenderer";
objRenderer.layer = MultiARInterop.GetSurfaceLayer();
arData.surfaceRendererRoot = objRenderer;
surfaceRootTransform = objRenderer.transform;
DontDestroyOnLoad(objRenderer);
if (!isDisplayOpaque)
{
// hololens
surfaceRenderer = objRenderer.AddComponent <SpatialMappingRenderer>();
surfaceRenderer.surfaceParent = objRenderer;
surfaceRenderer.renderState = (SpatialMappingRenderer.RenderState)arManager.useOverlaySurface;
if (arManager.useOverlaySurface != MultiARManager.SurfaceRenderEnum.None)
{
surfaceRenderer.visualMaterial = arManager.surfaceVisualizationMaterial;
surfaceRenderer.occlusionMaterial = arManager.surfaceOcclusionMaterial;
}
}
else
{
// mr headsets
CreateBoundaryPlane(objRenderer.transform, arManager.GetSurfaceMaterial(),
arManager.surfaceCollider, arManager.colliderMaterial);
boundaryMgr = objRenderer.AddComponent <HoloToolkit.Unity.Boundary.BoundaryManager>();
boundaryMgr.FloorQuad = boundaryPlane;
boundaryMgr.AwakeBoundaryManager();
}
}
// create surface collider
if (arManager.surfaceCollider)
{
GameObject objCollider = new GameObject();
objCollider.name = "SurfaceCollider";
objCollider.layer = MultiARInterop.GetSurfaceLayer();
DontDestroyOnLoad(objCollider);
if (!isDisplayOpaque)
{
// hololens
surfaceCollider = objCollider.AddComponent <SpatialMappingCollider>();
surfaceCollider.surfaceParent = objCollider;
surfaceCollider.lodType = SpatialMappingBase.LODType.Low;
surfaceCollider.layer = MultiARInterop.GetSurfaceLayer();
if (arManager.colliderMaterial)
{
surfaceCollider.material = arManager.colliderMaterial;
}
}
else
{
// mr headsets
if (boundaryPlane == null)
{
// there was no boundary rendering
CreateBoundaryPlane(objCollider.transform, null, true, arManager.colliderMaterial);
boundaryMgr = objCollider.AddComponent <HoloToolkit.Unity.Boundary.BoundaryManager>();
boundaryMgr.FloorQuad = boundaryPlane;
boundaryMgr.AwakeBoundaryManager();
}
}
}
// // if camera is too near to the floor, lower the floor 1.5 meter below the camera
// if(currentCamera && boundaryMgr)
// {
// if(currentCamera.transform.position.y < 0.1f)
// {
// boundaryMgr.CurrentFloorHeightOffset = currentCamera.transform.position.y - 1.5f;
// Debug.Log(string.Format("FloorHeightOffset set below the camera at {0:F2}m.", boundaryMgr.CurrentFloorHeightOffset));
// }
// }
// starts co-routine to check rendered surfaces
StartCoroutine(CheckSurfacesRoutine());
Debug.Log("TrackingSpaceType: " + XRDevice.GetTrackingSpaceType());
Debug.Log("Screen size: " + Screen.width + " x " + Screen.height);
int surfaceLayer = MultiARInterop.GetSurfaceLayer(); // LayerMask.NameToLayer("SpatialSurface");
Debug.Log("SpatialSurfaceLayer: " + surfaceLayer);
// interface is initialized
isInitialized = true;
}