/r/HoloLens
/r/HoloLens is a place for news and discussion about Microsoft HoloLens.
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/r/HoloLens
Hi everyone. I'm currently working with a team who shall be going on an archaeologocal trip soon. We require some sort of a device to shade the hololens from the sun, as we'll be working in direct sunlight.
Unfortunately, the Holotint for the V2 is outside our budget. Wondering if anyone has one laying around or could help us in this regard.
We have tried to make our own shades with glass tint and plastics, but mixed results.
Thanks again!
i was thinking of buying a hololens 1 seeing as theyre so cheap (where im based) at around 100 dollars. i have wanted to get in to VR/XR and i think for that price its a really intruiging deal.
can i watch videos, etc. on it or is it strictly good for developing
Im not sure if this is the place to post it,thank you in advance for taking the time to read me, I ran out of Ideas, here is my problem:
My Hololens 2 shutdown while I was testing an app I created, after that every time I try to turn it On I get:
1st: The windows Logo and loading
2nd: Gears moving while a white bar is loading
3rd: A Black screen with a very big error message:
"Windows failed to start, a recent change on the software or hardware may be the cause to fix the problem 1 insert your windows instalation disk and restart your computer 2 choose your language settings and click next and click on repair your computer if you do not have this disk contact your sistem administrator or computer manufaturer for assistance Error code Status 0xC0000001 info: after multiple tries the operating system in your pc failed to start so it needs to be repaired Windows key = recovery".
The Hololens2 ran out of battery and now everytime it gets any power charge, it boots the device with the behaviour described above.
So when I try to do any of the steps from the documentation to try a hard reset/Wipe/factoryReset, none of that works because it does not have enough battery to be even detected by the device manager or de Advanced Recovery Companion app.
I am stuck and dont know what to do.
Thank you all in advance.
The way the holographic pen adapts to the surfaces is pretty awesome!
I have tried an advertised 480 Mbps USB cable
I tried a verified quest 2 cable
Task manger says that speeds top out at 70 Mbps and I'm still getting a good 2-15 second delay
Hey all, Acquired a HoloLens 2 around 2 years ago through work for research. It’s been used probably 3 times or about 1 hour in total would be considered as new. I’m looking to sell it as it just sits in its case… I see them for sale for around $3000 used (I’m based in Australia) is this a reasonable price for the unit? Any guidance would be appreciated. Let me know if further specs would be required. Thanks!
Can I develop content for hololens 1 in unity? I downloaded it yesterday and it says hololens 2, oculus. The place I work already has a hololens 1 that was purchased years ago and doesn't have money to spend on a more current one.
So does unity only work with ARM architecture not x86? If so what can I use to develop content for the hololens 1?
Hi guys, I've been working on a project to perform 3d object detection using HoloLens.
The objective would be to do something like this
https://youtu.be/6BasadGUGwc?si=aQZTHfHI4A6TQRgg
so using a neural network or some machine learning algorithm to detect the object and found his bounding box in 3d space. although the video has a brief explanation I don't get how they perform 3d object detection since the darknet yolov4 neural network perform only 2d object detection. Can anyone help me out with this? thanks for you time!
Hi guys, I've been working on a project to perform 3d object detection using HoloLens.
The objective would be to do something like this
https://youtu.be/6BasadGUGwc?si=aQZTHfHI4A6TQRgg
so using a neural network or some machine learning algorithm to detect the object and found his bounding box in 3d space. although the video has a brief explanation I don't get how they perform 3d object detection since the darknet yolov4 neural network perform only 2d object detection. Can anyone help me out with this? thanks for you time!
How can I make a request for example to an online API that is effective on Hololens 2. Because up to now I have only managed to make them work from Unity and never on Hololens.
Hello, I just think AR is really cool and I understand how this device isn't for consumers. I got lucky with an eBay bid and I wanted to know how all of you use this device for fun.
I'm looking at the mirage app and it looks really cool
Hello HoloLens community,
I'm currently working on a project that involves capturing changes in an underground facility, irregular walls, wall using a professional-grade LiDAR sensor. The goal is to process this data on a backend (using Python and the Ouster SDK) and then send it to a HoloLens for real-time visualization (my unity app). Here's the challenge I'm facing:
The LiDAR and the HoloLens are not physically connected; they operate independently. The LiDAR captures the irregular wall's surface, the backend processes this data and converts it into a heatmap, and then we aim to overlay this heatmap onto the real-world mine wall using the HoloLens for augmented reality visualization.
Here are the specific aspects I'm seeking advice on:
Edit: I forgot to mention, im making the Unity application, i need to figure out how to bring the data from that Lidar sensor and show it in the hololens.
Any insights, advice, or references to similar projects would be immensely helpful. If anyone here has tackled something similar or knows of resources that could guide me, I would greatly appreciate it.
Thank you for your time and assistance!
Do you want to be among the first to experience an innovative XR project developed by Stanford engineers?
We are a team of students from Stanford University, participating in the Design for Extended Realities course (DESIGN284). Our assignment is to design and develop an XR project that tackles real-world challenges. To ensure our project truly meets user needs and is based on actual behaviors with XR technology, we're conducting a survey to gather insights.
By participating, you'll not only contribute valuable information that will shape the development of our project, but you'll also have the exclusive opportunity to be one of the first users to experience our XR project.
Please fill out this Google Form to join the initial group of users for our project. Your participation is greatly appreciated, and we're excited to offer you a firsthand look at what we're creating!
\- This form will take max 10 min
\- If you could share this Google form with other people that would be great
If you have any questions, contact Trishia, Hunter or Lukas
\--
Trishia El Chemaly: https://www.linkedin.com/in/trishia-chemaly/
Hunter Zhang: www.linkedin.com/in/hunter-zhang-8724a9205
Lukas Klaiber : https://www.linkedin.com/in/lukas-klaiber-0458121ba/
Trishia: tchemaly@stanford.edu
Hunter: hunterzh@stanford.edu
Lukas: klaiber@stanford.edu
Good day,
For the last couple of days I've been struggling. I'm trying to set up a HoloLens 2 for another business. They created an account with 2FA and I'm logging in from another place while being in a call with them (to give me the 2FA code). This all works. When I'm logged in I get the option to select the option to add another account or I can just press the one that I just logged in with.
When I select the one that I just logged in with, it gives a short white window, which then changes to the error: "You'll need internet for this", when I select "Retry", I have to log in all over again and I'm stuck in a loop.
I checked different forums and websites with similar issues and tried everything, including this:https://learn.microsoft.com/en-us/hololens/hololens-troubleshooting#after-successful-network-connection-users-may-receive-incorrect-error-regarding-internet-connectivity-during-initial-device-setup
The problem keeps occurring and I don't know what to do, anyone here who knows what to do? I logged in with my own work account and it did just work, but it seems to go wrong with 2FA or at least somewhere after that.
Hello,
I am using the HoloLens 2 for a research project. I am interested in collecting gaze data, which I can already do without the research mode. I was wondering if my project would benefit from using the research mode in any way.
I am happy to provide any necessary information that would help answer this question.
Thank you for your help!
I'm having difficulty finding how to share what the hololens 2 see's in AR with people on teams. I don't see a teams app in the microsoft store in the hololens.
Curious as I’m a HoloLens 2 owner and avp owner.
When I can connect and disconnect from the HolographicRemoting Player app in Hololens2 in a standalone Windows app using the AppRemoting class link here). However, if I quit the standalone app before explicitly calling the AppRemoting.Disconnect(), the Player App on HL2 becomes almost unresponsive, HL2 tracking is lost, and HL2 almost becomes irresponsive to the extent that sometimes I'll need to hard restart it. I tried calling disconnect() before the app quits (in OnDisable, OnApplicationQuit, and OnApplicationPause), but it didn't help. How can I resolve this?
I was wondering if you can us a T-Display S3 AMOLED screen without it getting blurry when have your face close to it so i can use it for a vr screen?
Installed, Hololens 2 emulator on my PC (Win10 Enterprise).
Everything seems to render fine, connects to internet, even the microphone works
However, simulation controls dont seem to work. Can't move or do anything, besides voice commands. Tried to bring up simulation control panel (f7 and pressed the button), but that does nothing.
I was wondering if you can connect other cameras with Bluetooth , USB or any way so you can see a live feed of what the camera sees back onto the hololens 1 ?
I am trying to use this sample project to set up QR Code tracking for Hololens: https://github.com/microsoft/MixedReality-QRCode-Sample/blob/main
I think I am getting close, but I am running into a couple of issues. Basically, my theory is that my scene is set up wrong, and/or the branch I'm getting the code from ("main") is not the correct one and I should be using "OpenXR". When I play, the hololens properly detects the QR Code, its version, physical scale and stuff like that from the QRCode.cs script. However, it will not get the location from the SpatialGraphNode.cs and SpatialGraphNodeTrack.cs scripts.
What I have found is that the SpatialGraphNodeTracker.cs script is trying to assign a variable "node" in Update() to "SpatialGraphNode.FromStaticNodeId(Id)". However, SpatialGraphNode has a test that looks like: #if WINDOWS_UWP && UNITY_XR_WINDOWSMR
. I have never seen an if statement like this in C# and I don't actually know where it is getting the WINDOWS_UDP and UNITY_XR_WINDOWSMR values from, but I am pretty sure they are both false as I have done some testing. This means that the "node" variable from earlier is being assigned as null and therefore I can't get a pose from it.
I have tried copy and pasting the SpatialGraphNodeTracker script out of the "OpenXR" branch in Github into my unity scene (which is using the "main" branch) and I didn't get any errors, but the same issue persisted. That's why my theory is that my scene is set up incorrectly. The values WINDOWS_UDP
UNITY_XR_WINDOWSMR
and MIXED_REALITY_OPENXR
are all false when I tested them. I am in Unity version 2021.3.33f1 if that helps.
Sorry for this huge block of text, but I really don't know where to go from here. Thanks in advance!
I'm looking for a tested device that will let me Miracast my hololens to a monitor easily. It's for easily displaying in meeting rooms for demos, so I'd rather not use the portal.
The Microsoft wireless display adapter looks like it is sold out everywhere, or there are reseller selling them at a 1000% markup. I tried a generic 'anycast' device and it won't work. I tried a Barco Clickshare C-10 as well but no luck.
Does anyone have any recommendations?
Is there a way to know intrinsic parameters (e.g. focal length) of the rendering camera? (Rendering camera is that used to project 3D space into render plane in hololens. It is not PV camera)
I tried to adjust the main camera parameter of unity to find out, but I found that the rendering camera was adjusted by the holographic camera provided by Windows mixed reality.
However, the holographic camera does not seem to have any camera internal variables such as focal length.
While looking for various information, I also found the following information.
" the HoloLens can render images within about the same FOV captured by a 55mm lens on a SLR camera. "
I would appreciate it if you could tell me how to know a camera similar to the hololens 2 rendering or how to know the focal length of the rendering.
In the past, I have used a HoloLens to overlay 3d models of large equipment in an industrial setting to visualize it on the manufacturing floor. My plant does not currently have a HoloLens, but I am curious if there are any phone camera-based solutions that might partner up with offboard computation from your laptop.
I am aware of a solution called HoloLight that performs the AR rendering to ease the graphics load on the HoloLens. But I want to take this to the extreme of using my phone camera as a visual input then having my computer render the equipment as an AR overlay on top of my phone's camera feed. A phone-based solution also offers the ability to stick my phone on a tripod and keep it steady without someone having to just stand still with the HoloLens on.
Any leads are appreciated, thank you!
Hey!
I was wondering if someone has faced with a similar issue and found an answer to this. Currently I am developing for the HoloLens2 using Unreal Engine 5.0.3 and MRTK UX Tools v0.12.1, and I want to modify the pinch slider so it is vertical instead of the basic horizontal. This works when my slider is locked in place but when I try to do it with the UxtFollow component it turns back into horizontal or just starts jittering (kinda like its spinning). I tried setting the rotation of it through a blueprint but nothing worked so far and I cant seem to find anything online about this. Thank you!
i would like to know if this is a fact or if it is an issue that can be solved
notable websites(the only one i can remember):
https://discord.com/channels/@me - only here does it have the issue discord.com works just fine for some reason
i don't have a picture or anything because i still cant figure out how to send images to my computer(i could with usb but i am on linux right now)
So I’m getting into 3d modeling and printing and wanted to know if there is any software for HoloLens2 that will let me take an stl, and project as a hologram it so I can preview and even fit test my models in place using AR before they are printed.
Any suggestions?
I've been assigned a project to do a data center overlay and visual guide/interface using Hololens 2. My initial thought was that I'd go the recommended route of C# and Unity, but that Unity licensing fee...goddamn.
So I'm thinking I have to shift my language to C++, any confirmation and advice based on your own experiences?
If so message me.