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Prototype: Azure Spatial Anchors for ARKit/ARCore using Unreal Engine 4.26
Hello Everyone, Here is a video of the prototype I am building to test the upcoming support for Azure Spatial Anchors for ARKit/ARCore in Unreal Engine 4.26 Spatial Anchors saved from previous session are loaded up on scanning the same space. A progress bar has been added to give feedback of Session Quality(Turns green on value greater that 1.0). A Watcher is started subsequently and saved anchors are restored from the cloud.
HoloLens Signal to another Computer
Hi, I've got the following problem.. hopefully someone can help me. Is it possible, to create an "Action"-Button in Unity, that after I pressed this kind of button, for example I get a connection to another computer on which a script is starting? Thanks for ideas..Mixed Reality Mastery: HoloLens 2 & 3D Worlds Challenge
Join the "Mixed Reality Mastery: HoloLens 2 & 3D Worlds" challenge NOW! Start Date: 05/01/2024 End Date: 27/01/2024 Why Participate? From beginner to advance in only 10 modules!! Certificates & Digital Swags for ALL finishers Get a chance to win a LinkedIn Premium 12 months voucher worth $150! Join the Challenge from here How to Win? Complete the challenge. Get a certificate & cool digital swags. Stand a chance to win LinkedIn Premium! Note: Certificates & prizes within 25 days of challenge completion. Form this form for Incentives/Certificate/Digital Swags Ready to shape the future? Tag your squad and let's do this! #MixedRealityChallenge #TechSkills #MicrosoftLearn #DeveloperCommunity #LinkedInPremium #DigitalExperiences #LearnAndGrow #MLSA #Upskill
How to unproject a 2D point in an captured image back to its accurate location in the physical world
Hi all, I'm creating HoloLens2 software that detects corners in an image and then shows their actual location in the world. However, there may be slight deviations between the projected points and their actual location, which increase with distance from the user. As following figure shows. Here's my code snippet for projecting the detected corners: I convert the corners from image to screen coordinates, then to NDC for unprojection. Next, I use the inverse of the projection matrix to convert the points from NDC to Camera space and then from Camera space to World space using the camera-to-world matrix. Finally, I instantiate the detected points using a Ray and RaycastHit. For getting the cameraToWorldMatrix and projectionMatrix, i referred to XRIV work From my side, i guess it may be the reason that the depth information is not estimated properly or the value of cameraToWorldMatrix and projectionMatrix are not correct. However, i have made efforts on this two reasons, but failed. May dear friends could give me some insights about how to mitigate this projecting devation, i show my great appreciation here in advance!HoloLens 2 App for Timber Frame Assembly
I am very proud about our latest project: We've developed a HoloLens 2 app for timber frame assembly: https://www.youtube.com/watch?v=oSSQ_GUpYsQ The planning of the building projects is done completely digitally using the cadwork software at schaerholzbau in Altbüron Switzerland. Based on these construction plans, machines and employees saw and mill individual wooden beams into the desired shape. These are assembled by hand in the production hall to form transportable elements. The elements are usually different in shape and vary in complexity. For this reason, employees often have to consult the printed construction plan when assembling the elements on the workbench. Since the planning of the buildings and the components is already done digitally and in 3D, these plans can also be displayed spatially in Mixed Reality. This idea gave rise to the ElementBau app for HoloLens 2. Employees see the construction plan as a hologram on the assembly table, are independent of the printed construction plan and have their hands free to do the work. With the use of the HL2 app, a significant acceleration of the assembly process was measured.
Azure Spatial Anchors Litecoin Mining Stats
https://youtu.be/5k7kb1WoHSw What could be more cyberpunk than combining holograms and cryptocurrency? I just finished creating a sample HoloLens 2 app that demonstrates how to create, locate, and delete an Azure Spatial Anchor. The app lets you pick a position in your environment to display a slate showing your Litecoin cryptocurrency mining stats from litecoinpool.org. It makes use of several MRTK components & features: hand rays, spatial awareness, surface magnetism, tap to place, a near menu, hand menus, eye tracking, and the little rotating orbs progress indicator. When you're given a box of crayons, I sayUse all the colors! Source code available here:https://github.com/torynfarr/hololensWe just released our first Azure Spatial Anchors app.
Our digital art gallery app Complex States AR is finally here: https://www.youtube.com/watch?v=aNiQXJRQwIw Create your own digital gallery anywhere you are and let others explore it through the miracle of #AugmentedReality and #AzureSpatialAnchors. Get it for iOS: https://apps.apple.com/us/app/complex-states-ar/id1538774460 Get it for Android: https://play.google.com/store/apps/details?id=com.afca.ch.ComplexStatesAR More info about the project: https://afca.ch/en/output/complex-states-arStereoKit v0.3
StereoKit, the C# OpenXR based Mixed Reality engine, just hit v0.3! It already support HoloLens as well as all the major VR headsets, and this brings in Oculus Quest support, Linux support, and a bunch more! I'm super excited about this update, since I've spent the last 7-8 months working on it, and it can do some pretty awesome stuff now! If you want to know more about it, I wrote a post about it over on my blog! https://playdeck.net/blog/stereokit-v0.3-release If anyone tries it, I'd love to know what you think! 🙂 https://stereokit.net/sk_gpu.h WebXR Demo
Up until recently, I thought doing WebXR from C++ wouldn't work without a fair bit of effort, but I just discovered a nice chunk of code that helped me work through it! I had sk_gpu.h building to WASM with Emscripten before, so it didn't take too much more to get WebXR in there too 🙂 Here's the demo online! It's nothing too fancy, this is my test scene that lets me check on the most important features, but I'm quite excited that it works! At some point I'll be sure to ship a demo that's fun to play with too, but this also means I'm another step closer to getting all of StereoKit running on web too!
