Important Notification: Vuforia Engine patch for HoloLens 2

May 6, 2021 - 2:18pm #1

Vuforia Engine 9.8 Patch 2 fixes a performance issue on HoloLens 2 and UWP tablets that is introduced with Windows 10 21H1 when using Advanced Model Targets.

Make sure to upgrade to Vuforia Engine 9.8.8 if:

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Vuforia UWP sample 10.0.12 build for SDK version 9.8.5?

SDK 10.0
August 2, 2021 - 1:08am #1


I've tried to use the SDK UWP 10.0.12 with the UWP sample 10.0.12 but it seems like the sample was actually built for Vuforia Engine 9.8.

Am I missing something or is the UWP sample simply not updated to the latest engine version?

When will the UWP sample be released for Vuforia Engine 10?

Kind regards


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Object Alignment using Vuforia and Hololens

July 14, 2021 - 10:06am #1

Hello, we are currently working on a project using vuforia on the hololens, and we want to be able to overlay a model of an object over the object once scanned. The scanning process is working, and the model is placed into the world, but it is inconsistent in its alignment. Sometimes the model is in the same place, but other times it is angled or in a completely different location. We are using Unity and Model Targets. We have been trying to work around this issue for quite a bit now, but nothing appears to make it consistently go in the same place. Your help is very much appreciated!

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Hololens2 ImageTarget World center issue

June 24, 2021 - 1:42am #1



in my app, the world center seems to be off.

I'm using MRTK 2.7.0 with OpenXR 1.0.0 and Vuforia 9.8.8

On the Hololens, the Image Target gets recognized, but its position has a random fixed offset after the App initializes. The Setup is similar to the hololens2 Samples from the Asset store, but I cannot verify that the samples works as intended, because it doesn't compile.

I suspect, that the WorldCenterMode "Device" wich is enforced does not work properly? Extended Tracking and "Track Device Pose" are enabled.

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Disabling VuforiaBehaviour component causes Null Reference Exception error to log each frame

June 21, 2021 - 1:28pm #1

I need to disable the VuforiaBehaviour script in my scene (in Unity), and do so with VuforiaBehaviour.Instance.enabled = false;. Every frame after this, an error is logged in the console "NullReferenceException: Object reference not set to an instance of an object."

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Interactable Scripts Not accessible - Vuforia Sample for Hololens 2- Unity 2019.41f

June 19, 2021 - 3:51pm #1

Respected Sir/Madam,

I am currently doing a Project which involves Vuforia sample for Hololens 2 for Unity version 2019.4.10f1 Personal,

which involves Image Tracking. I understand there is an Inbuilt MRTK Version 2.5.3. While developing an

Application I encountered a bug after switching from Game mode to Scene mode in Unity. I am not

able to access the Interactable Script of any Prefab Object (Example: A PressableButton) in the Project and therefore

I am not able to add any Interaction for a particular Button to perform an action.

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Unreal Engine Hololens

June 3, 2021 - 11:36am #1

Hello guys,

I am attempting to integrate Vuforia image and model tracking into Unreal Engine 4.26 through their third-party library plugin system but have run into problems when initializing the Vuforia camera. Currently the code I have successfully sets up:

- Vuforia parameters and initialization

- Device, Object and Positional Trackers, and Dataset Activation

The current issue is that on call to Vuforia::CameraDevice::getInstance().init(), the camera fails to initialize.

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ImageTarget works in Unity but not on HoloLens 2

May 27, 2021 - 6:16am #1

I'm developing an application for HoloLens 2 in Unity. I started using Vuforia's ImageTarget, which works fine with a webcam in Unity's Play mode. Also building and deploying to the Hololens 2 succeeds. However, the image target is not recognized on the Hololens. I don't have any other issues with the application.

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Unity ARapp in Hololens with Vuforia

May 13, 2021 - 4:14am #1

Hello guys

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Unity AR in Hololens with Vuforia

May 11, 2021 - 9:04am #1



I am a new developer for Unity AR in Hololens with Vuforia and i have some issues.

First of all, from my experience in android ar apps, when the camera scan an image target, some 2d and 3d objects spawn in the device display and also a canvas with a UI. Also the 3d objects are attached to the image target and don't follow the users camera (as default behavior). 

I try to make somethng like that for a hololens 2 device i had some problems.

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