/// <summary>
/// Gets the state of localization against the global Earth map.
/// </summary>
/// <param name="cameraManager">The ARCameraManager instance.</param>
/// <returns>The Earth localization state against the global Earth map.</returns>
public static EarthLocalizationState GetEarthLocalizationState(
this ARCameraManager cameraManager)
{
EarthLocalizationState state = EarthLocalizationState.NotLocalized;
var cameraParams = new XRCameraParams
{
zNear = cameraManager.GetComponent <Camera>().nearClipPlane,
zFar = cameraManager.GetComponent <Camera>().farClipPlane,
screenWidth = Screen.width,
screenHeight = Screen.height,
screenOrientation = Screen.orientation
};
if (!cameraManager.subsystem.TryGetLatestFrame(cameraParams, out XRCameraFrame frame))
{
Debug.LogWarning("Unable to determine the current EarthLocalizationState, " +
"the current XRCameraFrame is not available, try again later.");
return(state);
}
if (frame.timestampNs == 0 || frame.FrameHandle() == IntPtr.Zero)
{
Debug.LogWarning("Unable to determine the current EarthLocalizationState, " +
"the current frame is not ready, try again later.");
return(state);
}
return(FrameApi.GetEarthLocalizationState(
ARCoreExtensions._instance.currentARCoreSessionHandle, frame.FrameHandle()));
}
private static bool TryGetLastFrameFromExtensions(out XRCameraFrame frame)
{
ARCoreExtensions extensions = ARCoreExtensions._instance;
ARCameraManager cameraManager = extensions.CameraManager;
var cameraParams = new XRCameraParams
{
zNear = cameraManager.GetComponent <Camera>().nearClipPlane,
zFar = cameraManager.GetComponent <Camera>().farClipPlane,
screenWidth = Screen.width,
screenHeight = Screen.height,
screenOrientation = Screen.orientation
};
if (!cameraManager.subsystem.TryGetLatestFrame(
cameraParams, out frame))
{
Debug.LogWarning(
"The current XRCameraFrame is not available, try again later.");
return(false);
}
if (frame.timestampNs == 0 || frame.FrameHandle() == IntPtr.Zero)
{
Debug.LogWarning(
"The current XRCameraFrame is not ready, try again later.");
return(false);
}
return(true);
}
/// <summary>
/// Gets the set of data recorded to the given track available during playback on this
/// frame.
/// Note, currently playback continues internally while the session is paused. Therefore, on
/// pause/resume, track data discovered internally will be discarded to prevent stale track
/// data from flowing through when the session resumed.
/// Note, if the app's frame rate is higher than ARCore's frame rate, subsequent
/// <c><cref="XRCameraFrame"/></c> objects may reference the same underlying ARCore Frame,
/// which would mean the list of <c><see cref="TrackData"/></c> returned could be the same.
/// One can differentiate by examining <c><see cref="TrackData.FrameTimestamp"/></c>.
/// </summary>
/// <param name="trackId">The ID of the track being queried.</param>
/// <returns>Returns a list of <see cref="TrackData"/>. Will be empty if none are available.
/// </returns>
public List <TrackData> GetUpdatedTrackData(Guid trackId)
{
if (ARCoreExtensions._instance.currentARCoreSessionHandle == IntPtr.Zero &&
ARCoreExtensions._instance.Session.subsystem != null &&
ARCoreExtensions._instance.Session.subsystem.nativePtr != null)
{
Debug.LogWarning("Failed to fetch track data. The Session is not yet available. " +
"Try again later.");
return(new List <TrackData>());
}
ARCameraManager cameraManager = ARCoreExtensions._instance.CameraManager;
var cameraParams = new XRCameraParams
{
zNear = cameraManager.GetComponent <Camera>().nearClipPlane,
zFar = cameraManager.GetComponent <Camera>().farClipPlane,
screenWidth = Screen.width,
screenHeight = Screen.height,
screenOrientation = Screen.orientation
};
if (!cameraManager.subsystem.TryGetLatestFrame(cameraParams, out XRCameraFrame frame))
{
Debug.LogWarning("Failed to fetch track data. The current XRCameraFrame is not " +
"available. Try again later.");
return(new List <TrackData>());
}
if (frame.timestampNs == 0 || frame.nativePtr == IntPtr.Zero)
{
Debug.LogWarning("Failed to fetch track data. The current XRCameraFrame is not " +
"ready. Try again later.");
return(new List <TrackData>());
}
return(FrameApi.GetUpdatedTrackData(
ARCoreExtensions._instance.currentARCoreSessionHandle, frame.FrameHandle(),
trackId));
}
public Vector3 GetScreenPosition(GameObject finger)
{
//HERE. Which "transform" should I get? The UICancas finger?
//The go this script is attached to?
RectTransform rectTransform = (RectTransform)finger.transform;
Vector4 worldLocation = rectTransform.localToWorldMatrix * new Vector4(rectTransform.anchoredPosition3D.x,
rectTransform.anchoredPosition3D.y,
rectTransform.anchoredPosition3D.z,
1);
//is it different using a arcamera?
return(arCameraManager.GetComponent <Camera>().WorldToScreenPoint(new Vector3(worldLocation.x, worldLocation.y, worldLocation.z)));
}
protected virtual void Awake()
{
if (arManager == null)
{
arManager = GetComponent <ARCameraManager>();
}
if (arBackground == null)
{
arBackground = FindObjectOfType <ARCameraBackground>();
}
if (cameraFinal == null)
{
if (arManager != null)
{
cameraFinal = arManager.GetComponent <Camera>();
}
}
}
void Start()
{
targetCamera = this.gameObject.GetComponent <Camera>();
arCamera = arCameraManager.GetComponent <Camera>();
}