void OnFaceChanged(ARFacesChangedEventArgs args)
{
var subsystem = faceManager.subsystem as ARKitFaceSubsystem;
info = new ARKitRemotePacket.FaceInfo();
info.added = args.added.Select(face => ToARFace(face)).ToArray();
info.updated = args.updated.Select(face => ToARFace(face)).ToArray();
info.removed = args.removed.Select(face => (ARKitStream.Internal.TrackableId)face.trackableId).ToArray();
var meshes = new List <ARKitRemotePacket.FaceMesh>();
meshes.AddRange(args.added.Select(face => ToMesh(face, subsystem)));
meshes.AddRange(args.updated.Select(face => ToMesh(face, subsystem)));
// removed meshes are not needed
// meshes.AddRange(args.removed.Select(face => ToMesh(face)));
info.meshes = meshes.ToArray();
}
protected override void OnPacketTransformer(ARKitRemotePacket packet)
{
packet.face = info;
info = null;
}