Vuforia 8.0.10 / Unity 2018.3.5f1 - Model Target can't select my database

I have generated an object using the object Vuforia Object Scanner android app, uploaded it to a target library, and downloaded it as a unity package then installed it.

I have a dev license which I have configured. My database shows up in Vuforia engine configuration.

I have successfully imported image targets and had no issue.

When I add a ModelTarget to the scene I am told I have no databases, and asked if I want to import the a sample one.

When I inspect the files of the sample database, the underlying data seems significantly different to the mars lander sample. eg my xml file:

<?xml version="1.0" encoding="UTF-8"?>

<QCARConfig xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="QCAR_Dataset_config.xsd">

<Tracking>

<ObjectTarget name="doublestrike2-model" />

</Tracking>

</QCARConfig>

Compared to the sample:

<?xml version="1.0" encoding="UTF-8"?>

<QCARConfig>

<Tracking>

<ModelTarget name="VuforiaMars_ModelTarget"/>



</Tracking>



<Assembly name="VuforiaMars_ModelTargets_assembly" assemblyId="c6f46a11ef7e4f4bb473a1262721cf8e">

<Part name="VuforiaMars_ModelTarget" translation="0 0 0" rotation="AD: 0 0 1 0"/>

<EntryPoint name="Front" translation="0.00181726 0.0548691 0.355023" rotation="AD: 0.006341771445525425 -1.0226681998402973 4.773902251453074 180.032">



</EntryPoint>

<EntryPoint name="Rear" translation="-0.00184344 0.0460248 0.374944" rotation="AD: 1 0.00003196492371778675 -0.0001523506621260158 203.699">



</EntryPoint>



</Assembly>



</QCARConfig>

I have read in other posts that you need to add your model to the scene to get the database to activate, but there are no models in the database. I have attached a screen shot of what is included.

Previously I was dragging the package to import. If I import by Assets->Import->Import Custom Package I get these errors:
Package does not contain valid import settings for: Assets/Editor/Vuforia/TargetsetData/model_targets/bc2b41fbe82b4d64a15f43ee1f0fb028_preview.jpg
Package does not contain valid import settings for: Assets/Editor/Vuforia/TargetsetData/model_targets_info.xml
Package does not contain valid import settings for: Assets/StreamingAssets/Vuforia/model_targets_OT.dat
Package does not contain valid import settings for: Assets/StreamingAssets/Vuforia/model_targets_OT.xml

Package attached. Looking forward to some help.

 

Hello,

I don't understand the following:

Model Target device databases are created by the Model Target Generator, available for download here: https://developer.vuforia.com/downloads/tool. This app only runs on Windows OS.

Thanks,
Vuforia Engine Support

 

I think I meant "Vuforia Object Scanner" app. It's available on the same download page you linked to.

 

Hi @meedabit, Does that give you enough information to diagnose my issue?

 

Hello @Mike-Ribbons,

The workflow for authoring an Object Target database compared to a Model Target database is very different:

https://library.vuforia.com/content...ining/Vuforia-Object-Scanner-Users-Guide.html
https://library.vuforia.com/content...lution/model-target-generator-user-guide.html

What I think is happening is that the Model Target prefab is not recognizing an Object Target device database, so it ignores it. I confirmed this behavior by importing the device database you've attached above into our Core samples Unity project. When I attempt to find the device database in the ModelTarget->Database, it is not listed. However, if I do the same in ObjectTarget->Database, it is listed.

HTH

Thanks,
Vuforia Engine Support

 

Hi @meedabit,
Thanks, I will read those.

 

That explains things, thanks.