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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Error when import Vuforia Hololens 2 Sample

March 15, 2022 - 12:31am #1

I was trying to run the vuforia hololens 2 sample but failed.

I followed the guides https://library.vuforia.com/platform-support/working-hololens-sample-unity

But when I imported the sample package into the project , I got the windowsmr error "capture-01.png".

And then I removed the windowsmr package, but got the common script error "capture-02.png".

the unity version is : 2021.2.13

mrtk version : 2.7.3

vuforia version : 10.5.5

 

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Hololens 2 Height Detection

January 18, 2022 - 11:05am #1

Hi,

Are there any suggestions on how to detect the Hololens 2's distance from the floor?

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Hologram not loading after image target detection

November 10, 2021 - 4:14pm #1

I made a new Unity 2020.3 (LTS) project with Vuforia sample for Hololens 1 and 2. On building and running the project as is on Hololens-2 (ARM64), launch Image Targets scene from the Menu and looked at the Astronaut marker. The info panel shows that the target is being 'tracked' 'normal' or extended tracked', but I do not see the Astronaut Augmentation. This is the same case for other image targets and the Vuforia Mars Object target. The augmentations do not show up. The scenes work as expected on the Unity Editor. 

Can you please help?

Thanks

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MRTK+Vuforia Hololens Sample 2020.3 LTS

October 25, 2021 - 7:14am #1
Topic solved

Hi,

I am trying to make an app on Unity(2020.3.14f1) with Vuforia Hololens sample 2020.3 LTS and MRTK. The problem is when I import the Vuforia package it gives error and I cannot figure it out. 

- Creating a new Unity project and importing, configuring MRTK (universal windows platform) for HoloLens works fine

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Image target tracking not as intended - rendering virtual object at wrong location (UWP MRTK)

October 22, 2021 - 3:40pm #1

Hey guys,

 

I am trying to render an object on top of my image target - very simple, and I have been able to do it with my webcam. However, when I deploy it onto the HoloLens (gen 1), the HoloLens cameras are able to detect the image target and render the object, but the object rendered appears at a different spot instead of on top of my image target. The object does move according to the image target's movement, though. This happens almost as if Vuforia tracks the image target at a different location from where I am holding it. Any help is appreciated, thanks!

 

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Stability of Transparent Hologram (HoloLens AR app with Unity)

October 21, 2021 - 2:57pm #1

Hi! I'm developing an AR application for HoloLens V2 using vuforia multi-targets in Unity. It expects the visualization of multiple holograms, to do that I've assigned the various gameobjects as child of the correspondent multi-target. When I launch the app on the HoloLens, I've noticed some pronunced oscillations in those holograms that hold a transparent material (A-channel = 125) while the opaque ones seem more stable.

 

So I would ask: 

1- Transparency of the material can introduce this effect or is it only my wrong impression?

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Unsatisfied with Hologram Stability

October 20, 2021 - 5:33am #1

Hi,

we just made some test on our Holo2 batch using Vuforia last Unity 2020.3 Demo.

As you can see from the Attached zip video file, we found the stability of the Hologram spawned quite unsatisfying.

We used the astronaut.

 

This makes us think, because our real world Scenario will be a little different.

 

We plan to use an image as a marker and then spawn a real, real big object (something like 20meters x 20 meters) and we are wondering about stability issues with such a big object with Vuforia.

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Long Initialization Time on HoloLens

October 13, 2021 - 11:15am #1

I am developing an offline Vuforia app for the HoloLens 2 that requires a delayed initialization. I am able to force Vuforia to wait until I call VuforiaRuntime.Instance.InitVuforia(); However, on the HoloLens, it takes 13 seconds for Vuforia to initialize and finish its tasks. During this time, the entire screen goes blank and I am unable to see any holograms or do anything. In the Unity editor, initialization takes a fraction of a second. 

 

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Holograms on Image target is not interactable

August 23, 2021 - 6:16pm #1

Hi,

I have a image target detected and there is a cube attached on it. I was wondering if I can resize, grab or move the cube after detection to a certain place by hand in hololens 2. I searched a lot but did not find a solution. 

 

I am using Vuforia 10, MRTK 2.7 and Unity.

 

Regards,

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