HoloLensWithOpenCVForUnityExample

https://github.com/EnoxSoftware/HoloLensWithOpenCVForUnityExample

What’s new

• Support for Hololens1 and Hololens2. (XR System: Legacy Built-in XR / XR Plugin Management WindowsMR / XR Plugin Management OpenXR)

Demo Video (old version)

Environment

• Hololens1 10.0.17763.3532 / Hololens2 20348.1522
• Windows 10 SDK 10.0.19041.0
• Visual Studio 2019
• Unity 2019.4.31f1 / 2020.3.38f1
• Microsoft Mixed Reality Toolkitv2.8.2
• OpenCV for Unity2.5.1+
• EnoxSoftware/HoloLensCameraStream

Setup

1. Download the latest release unitypackage.HoloLensWithOpenCVForUnityExample.unitypackage
2. Create a new project. (HoloLensWithOpenCVForUnityExample)
   • Change the platform toUWPin the “Build Settings” window.
3. Import the OpenCVForUnity.
   • Select MenuItem[Tools/OpenCV for Unity/Open Setup Tools].
   • Click the [Move StreamingAssets Folder] button.
   • Leave the following files and delete the rest. (“StreamingAssets/OpenCVForUnity/objdetect/haarcascade_frontalface_alt.xml”, “lbpcascade_ frontalface.xml”)
4. Clone HoloLensCameraStream repository.
   • Copy the “HoloLensCameraStream/HoloLensVideoCaptureExamp服务器托管网le/Assets/CamStream/” folder to the “Assets/” folder.
5. Import the Microsoft Mixed Reality Toolkit. (Recommend usingMixedRealityFeatureTool)
   • Follow the MRTK2 configuration dialog to set up the project.
6. Import the HoloLensWithOpenCVForUnityExample.unitypackage.
7. Add the “Assets/HoloLensWithOpenCVForUnityExample/*.unity” files to the “Scenes In Build” list in the “Build Settings” window.
8. Configure settings in the “Project Settings” window.
   • Add Define Symbols: the following toScripting Define Symbolsdepending on the XR system used in your project; Legacy built-in 服务器托管网XR:BUILTIN_XR; XR Plugin Management (Windows Mixed Reality):XR_PLUGIN_WINDOWSMR; XR Plugin Management (OpenXR):XR_PLUGIN_OPENXR.
   • EnableWebCamCapabilties in Publishing settings tab.
9. (Optional) Setup a performance environment suitable for Holorens. (SeeRecommended settings for Unity – Mixed Reality | Microsoft Learn)
10. Build the project:You can now build the Unity project, which generates a Visual Studio Solution (which you will then have to also build). With the Build Settings window still open, clickBuild. In the explorer window that appears, make a new folder calledApp, which should live as a sibling next to the ‘Assets` folder. Then click Select Folder to generate the VS solution in that folder. Then wait for Unity to build the solution.
11. Open the VS Solution:When the solution is built, a Windows explorer folder will open. Open the newly-built VS solution, which lives inApp/HoloLensWithOpenCVForUnityExample.sln. This is the solution that ultimately gets deployed to your HoloLens.
12. Configure the deploy settings:In the Visual Studio toolbar, change the solution platform fromARMtox86if you are building for Hololens1 or toARM64if you are building for Hololens2; Change the deploy target (the green play button) toDevice(if your HoloLens is plugged into your computer), orRemote Machine(if your HoloLens is connected via WiFi).
13. Run the app:Go toDebug > Start Debugging. Once the app is deployed to the HoloLens, you should see some confirmation output in the Output window.
    • (Print the AR marker “CanonicalMarker-d10-i1-sp500-bb1.pdf” on an A4 size paper)

Project Assets	Build Settings

Player Settings

ScreenShot (old version)

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