Real world object detection
Hi All, I hope this is the right place to ask this question. If it is not, please point me to the right location. Thanks. I have been asked to develop a HoloLens 2 healthcare application that should work as a guide for patients on how to handle…
HoloLens | Development
Deploying Unity app with AWS doesn't work on Hololens 2
I am developing an app, using Unity 2021.3.14, for the Hololens 2. It has authentication features in it, using the Amazon AWS libraries. I managed to make it work in Unity Editor, I get the token response for successful authentication, but only when…
HoloLens | Development
PIX / Graphics Debugging for Hololens 2
Hello, According to this page : https://learn.microsoft.com/en-us/windows/mixed-reality/develop/advanced-concepts/installing-pix-hololens it should be possible to use PIX to do graphics debugging on the HL2 But I cannot get PIX to connect to the Hololens…
HoloLens | Development
Hololens 2 Emulator not responding too user inputs, except for the microphone
Trying to use the HoloLens emulator. Installation went fine, however, upon launch from the .exe, it does not seem to respond to any inputs, besides the microphone, which bizarrely seems to work fine. Its showing thats it got internet connection, hyper v…
HoloLens | Development
Trace route of holographic remoting from PC to hololens2 to monitor network issue
Hello, I'm experiencing a network issue when trying to connect my HoloLens to a PC using holographic remoting. I'm wondering if there's a tool available to help me validate the routing of holographic remoting. I've noticed that by default, the HoloLens…
HoloLens | Development
How to check via code the implemented sampling rate in Hololens 2 with MRTK3
Inquiries May I see how to check via code the implemented sampling rate with MRTK3? Is the origin coordinate via FuzzyGazeInteractor (RayOriginTransform) the average of both eye gaze coordinates? Problem statement The origin coordinates of eye gaze…
HoloLens | Development
Azure Communication Services Calling SDK for Unity doesn't support for Video Calling
Hi, I'm developing an immersive application for HoloLens by Unity. I have a requirement of integrate Azure Video Calling feature to the application. Video call should be establishe between HoloLens and PC. I tried this…
Developer technologies | Universal Windows Platform (UWP)
Azure Communication Services
HoloLens | Development
Delayed Speech Recognition
I am developing an application that uses speech recognition on the hololens. I'm using Unity 2022.3 with MRTK 2.8. Everything works fine if I run the application from visual studio (as explained here:…
HoloLens | Development
How to resize HoloLens 2D application window size via code
I want to customize windows size of my 2D HoloLens UWP application. I have tried below code in my .NET application. This doesn't work in HoloLens, but it works in Windows PC. ApplicationView.PreferredLaunchViewSize = new Windows.Foundation.Size(950,…
Developer technologies | Universal Windows Platform (UWP)
HoloLens | Development
Developer technologies | .NET | Other
Developer technologies | C#

MRTK3 Errors On MRTK2 to MRTK3 Migration
I have been migrating my repo from MRTK2 to MRTK3 and some of the steps have not been clear. Are the MRTK 2.8.3 packages necessary for MRTK3 to work? My process has been as follows: delete previous MRTK 2.8.3 packages from the package manager import…
HoloLens | Development
Mixed Reality Feature tool v1.0.2209.0 doesn't open after pressing start
I have the mixed reality feature tool to import features to my unity project. After pressing start the folder selection screen won't open. The same version worked just fine until today .
HoloLens | Development

What is the limit both dimensional and file for a 3D model?
Hi! I am considering using the Hololens 2 for visualizing a house (a cube of 20x20m). Is there any dimensional limitation to be able to visualize the house? Is there any size limitation to import the 3D model size and get a good visualization…
HoloLens | Development
Does HL2 indeed not support vergence distance/point?
Using the ExtendedEyeGazeDataProvider provided by the extended eye tracking capability of MRTK3, GazeReading.VergenceDistanceSupported returns false when run on HL2. Based on that, I can only assume that this property is indeed not supported on HL2. Can…
HoloLens | Development
Can't get rid of a diagnostics rectangle with immersive APP after I first built an app from Unity to HoloLens2
I can't get rid of a diagnostics rectangle with immersive APP after I first built an app from Unity to HoloLens2. Every time I launch an inmersive(full-screen) APP, there will be a diagnostics rectangle at the middle of my view. See the images…
HoloLens | Development
Unable to 'build and run' on Unity 2020.3.34f1 for HoloLens2
Hello, I am unable to build software on HoloLens 2 with the following issues. This is very urgent and important for my master thesis. Anyone who can help me would be greatly appreciated.
HoloLens | Development
Connection between HoloLens 2 and Windows Laptop
I want to develop an app for HoloLens 2 and an app for Windows Laptop. Desired features: HoloLens 2 can scan a QR Code on the Windows Laptop screen and establish a peer to peer connection. (Maybe through WebRTC, I'm not sure.) Windows Laptop can send…
HoloLens | Development
How to know the orientation of the accelerometer in relation to camera Transform?
I am using HoloLens 2 with Unity 2019.4. I have access to research mode thanks to this repo . I can get the raw data from the accelerometer, but I don't know in which frame they are expressed. If I assume it is in the camera (headset) frame, then it…
HoloLens | Development
'NonNativeKeyboard' could not be found
URLAccording to the official tutorial configuration project, reported this error, how should I solve it?
HoloLens | Development
About microsoft / HoloLens2ForCV (Further questions)
I used the Stream Recorder app (in HoloLens2ForCV) to capture hand tracking and eye tracking data, and exported data like "XXX_head_hand_eye.csv" But the problem I'm having is that the file I'm exporting contains hundreds of columns of data…
HoloLens | Development
After running the project, I would like to export the saved records to a place where I can access them.
I tried to create an experimental environment with unity that would run on Hololens2. I built a sln file and was able to deploy the project to Hololens2 via visual studio. When I run the project on my computer, after it has been running for a while, when…