Lighting and backdrop: QR code detection quality is susceptible to varying illumination and backdrop. The QR spec contains more information about quiet zones.This margin must not contain any printed content and should be four modules (a single black square in the code) wide. Quiet zones: To be read correctly, QR codes require a margin around all sides of the code. You can find the complete API reference for NuGet package on Microsoft Docs.
BLACKSMITH3D OR UNITY HOW TO
You can also inspect how to make modifications to existing QRCode Unity project to support OpenXR from this pull request: API Reference To view the OpenXR version of the QRCode tracking on HoloLens 2, please checkout the "openxr" branch of this sample repro.
With OpenXR plugin, the app can use the built-in support for SpatialGraphNode, and the QR code tracking will work mostly the same way as above. Note that the "main" branch of this sample is working with Unity's "Windows XR Plugin" which works with the WinRT APIs in in Unity 2019 or 2020 LTS versions.Īfter upgrading to Unity 2020 or Unity 2021, You can also use "OpenXR plugin" for HoloLens 2 developement.
SpatialGraphNode.cs - This script is abstracting the tracking of a spatial graph static node, which represents the tracking information of QR code in a GUID id. The script also places the virtual QR code in the scene at the same location as the real-world QR code. SpatialGraphNodeTracker.cs - This script is attached to the QR code object and transforms real-world QR code coordinates into the Unity coordinate system. QRCodesVisualizer.cs - Handles all QR code visualizing in the scene and instantiates all QR codes in the local list kept in QRCodesManager. QRCodesSetup.cs - Kicks off the QR code manager tracking functionality in QRCodesManager. Handling events through callback functions.Adding event listeners for new, updated, and removed QR codes.QRCodesManager.cs - This is the main class that handles the QR SDK, including: QRCode.cs - This script is attached to the QR code object and populates the text displayed in the scene with the QR code properties on Start. The following is a breakdown of each C# script in the sample app:
BLACKSMITH3D OR UNITY FULL
You can find the full article on QR code tracking on Microsoft Docs. When the QR code is read, a rectangle object is placed at the QR code coordinates.In the HoloLens connected to Unity or with Remoting, a QR pops up in the scene in front of the user.Open the Sample folder in Unity Hub and launch the project.Clone or download this sample repository.
BLACKSMITH3D OR UNITY WINDOWS 10
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