/// <summary>
/// Coroutine that spreads the work of displaying scene objects across multiple frames.
/// </summary>
/// <returns>IEnumerator.</returns>
private IEnumerator DisplayData()
{
StatusText.Clear();
StatusText.Append("About to display the latest set of scene objects.");
StatusText.Append(string.Format("Current Settings:-\n\tRenderSceneObjects: {0}; SceneObjectVisualizationMode: {1}; RenderInferredRegions: {2};\n\tRenderPlatform: {3}; RenderBackground: {4}; RenderUnknown: {5}; RenderCompletelyInferred: {6};\n\tRenderWorldMesh: {7}; WorldMeshLOD: {8};\n\tBoundingSphereRadiusInMeters: {9};",
RenderSceneObjects, SceneObjectVisualizationMode.ToString(), SUDataProvider.RequestInferredRegions, RenderPlatformSceneObjects, RenderBackgroundSceneObjects, RenderUnknownSceneObjects, RenderCompletelyInferredSceneObjects, RenderWorldMesh, SUDataProvider.WorldMeshLOD.ToString(), SUDataProvider.BoundingSphereRadiusInMeters));
// First, get the latest scene from the data provider.
Tuple <Guid, byte[]> latestSceneData = SUDataProvider.GetLatestSerializedScene();
byte[] serializedScene = latestSceneData.Item2;
if (serializedScene != null)
{
// Then, deserialize the scene.
SceneUnderstanding.Scene scene = SceneUnderstanding.Scene.Deserialize(serializedScene);
if (scene != null)
{
// This will destroy all game objects under root.
SUUtils.DestroyAllGameObjectsUnderParent(SceneRoot.transform);
// Return to account for the destruction of the game objects at the end of the frame.
yield return(null);
// Retrieve the Scene to Unity world transform.
System.Numerics.Matrix4x4?sceneToUnityTransform = TransformUtils.GetSceneToUnityTransform(scene.OriginSpatialGraphNodeId, SUDataProvider.RunOnDevice);
if (sceneToUnityTransform != null)
{
// This will place the root object that represents the scene in the right place.
TransformUtils.SetUnityTransformFromMatrix4x4(sceneToUnityTransform.Value, SceneRoot.transform);
// Retrieve all the scene objects, associated with this scene.
IEnumerable <SceneUnderstanding.SceneObject> sceneObjects = scene.SceneObjects;
int i = 0;
foreach (SceneUnderstanding.SceneObject sceneObject in sceneObjects)
{
if (DisplaySceneObject(sceneObject))
{
++i;
if (i % 5 == 0)
{
yield return(null);
}
}
}
}
// When running on PC, orient the main camera such that the floor is on the Unity world's X-Z plane.
if (SUDataProvider.RunOnDevice == false)
{
SUUtils.OrientSceneRootForPC(SceneRoot, scene);
}
}
}
StatusText.Append("SceneUnderstandingDisplayManager.DisplayData: Display completed.");
_displayInProgress = false;
_lastDisplayedSceneGuid = latestSceneData.Item1;
}
