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Vumark and Hololens 2 : failed load data set in Release mode

January 27, 2020 - 2:12am #1

Hi, 

A few months ago, I created an application for Hololens 1 using a VuMark. It worked very well. I now have to update to Hololens 2. With the Hololens 2 I had a curious problem: in debug mode (I use Unity3D and Visual Studio 2019) everything works, the vuMark is well recognized, but in Release or Master mode the vuMark is not recognized : I have an error "Failed to load data set" and the path to the .xml file.

I don't understand how it can work in debug and not in release.

The other thing is that the Mars VuMark of the Vuforia Sample Core works well in debug and also in release ... That shows that Hololens 2+ Vumark is possible, but I don't understand what's wrong with mine.

I already tried :

- An update of Unity, update of Vuforia, update of Mixed Reality Toolkit.

- Fully regenerate the database (new data base, new license, new account...).

- Using the Mars VuMark example in my application : it's works... remplacing this vuMark with mine again : failed in release/master, works in debug... (and it works in playmode)



Currently I am in the versions:

- Unity 2019.2.19f1

- Vuforia 8.5.9

- Mixed Reality 2.2.0

- Windows 10 sdk 10.0.18362.0

Before I was in 2018.4.2f1 and it didn't work either.

 

Any idea ? 

 

 

Thank you very much

 

(Unfortunately I have no right to show you the SVG of the vumark)

sfoucher
Joined:
December 15, 2018
Posts: 1
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Vumark and Hololens 2 : failed load data set in Release mode

February 17, 2021 - 9:02am #7

I cannot say which version I used back in the days, but i repeated all steps with VS 2019 16.8.5 and the issue is still there,

I also created a MWE to demonstrate the problem: https://github.com/FlorianJa/VuMarkMWE

VuMark tracking is "working fine" in debug mode but in release mode the database fails to load.

lolzor
Joined:
November 4, 2016
Posts: 19
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Vumark and Hololens 2 : failed load data set in Release mode

February 17, 2021 - 5:36am #6

Hi @wouterdv @Zyreon,

Could you please confirm the following?

- Unity: ?

- Vuforia: ?

- Mixed Reality: ?

- Windows 10 sdk:?

 

@lolzor: Could you please confirm the VIsual Studio version used?

Thank you.

Vuforia Engine Support

mcotora
Joined:
March 15, 2019
Posts: 1675
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Vumark and Hololens 2 : failed load data set in Release mode

February 11, 2021 - 1:35am #5

Any solution to this issue? I have the same problem.

wouterdv
Joined:
September 11, 2018
Posts: 2
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Vumark and Hololens 2 : failed load data set in Release mode

August 17, 2020 - 3:30pm #4

No solution so far. I tried different unity versions and different platforms (ARM vs. ARM64). As temporary workaround i am using image marker now.

lolzor
Joined:
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Posts: 19
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Vumark and Hololens 2 : failed load data set in Release mode

August 13, 2020 - 6:57pm #3

Same for me.

Actually, not only the tracking of VuMarks seems to be affected by inconsistencies between Debug and Master/Release build for HoloLens 2.

Just to mention it (in case there might be the slightest chance of any correlation), the MRTK has a problem with the smoothing of solvers when building Master or Release for ARM64 (https://github.com/microsoft/MixedRealityToolkit-Unity/issues/7624).

Did you maybe find any workaround or even a solution for this problem with custom VuMarks yet?

Greetings,

Simon

Zyreon
Joined:
September 24, 2018
Posts: 1
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Vumark and Hololens 2 : failed load data set in Release mode

July 9, 2020 - 10:37am #2

Hi,

I have the exact same problem. Did you find a solution?

Best,

Florian

lolzor
Joined:
November 4, 2016
Posts: 19
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