What is the recommended way to re-scan an image target? This is a hololens application using Unity & Vuforia. An image target is scanned and the 3D model is displayed just fine. But, when a user moves the hololens too close to a surface the image "Trying to map your surroundings" pops-up indicating tracking loss. After the user moves back from the surface tracking is re-established but once in a while the location of 3D model has changed dramatically and the image target should be re-scanned.

From what I can gather from the documentation and forums is that I should delete the database containing the marker and then read the database back in again. Which should allow me to scan it again and thus establish it's proper place again. Is that correct? It seems a bit of a long winded way of going about it. I would expect something like marking the image target as "undiscovered" after which it would be available for "discovery" just like any other image target in the database.

Thanks for your feedback.

Hello,

i'm working with the classic license. My company does not make $10 million/year.

The license says "Apps built for companies with revenue under $10 Million/year"

My customers company (the one i have to build the app for) actually makes $10+ Million/year.

Am I allowed to continue using the classic license?

Greets

I want to leverage Extended Tracking for an Image Target in my Unity project.

When AR Camera's World Center Mode = FIRST_TARGET, extended tracking works fine, however when World Center Mode = DEVICE, extended tracking does not work and contents of the image either vanish or flying at random position when the image is not in camera view.

Is it possible to use Vuforia Studio, and the viewer app without any kind of internet connection? Maybe sending the finished project directly to the device?

We've been experimenting with Vuforia for a while and we mostly have it working. However, our biggest issue at the moment is once a image has been detected, the horizontal rotation is often wrong. We are doing room scale AR experiences so even if the rotation is off just a little, it has a really big effect. 

What we would like to do is have the object always be parallel to the floor (figured out by the devices sensors) but still be detected, scaled, positioned etc by the image detection. 

I have attached an image of the effect that we're seeing to try to help. 

Appreciate Any help / advice 

Hello everybody

I'm new to C++ and UWP and trying to understand how to configure the ImageTarget Sample with VisualStudio 2017 part of this tutorial:

First I've downloaded the Vuforia sdk for UWP from here and placed it in a new directory "UWP",

then I've downloaded the sample project from here

Double click the ImageTargets.sln file as the tutorial says and VisualStudio 2017 opens.

Open the AppSession.cpp script and get errors E1969 cannot open source file "Vuforia\CameraCalibration..."

So I've added the Vuforia folder manually, right-click ImageTargets, properties and in VC++ Directories added the path to "Include Directories"

Old errors gone, new errors include:

E1696 command-line error: cannot open source file "vccorlib.h" ImageTargets D:\Unity\UWP\samples\ImageTargets\SampleApplication\AppSession.cpp 1

E2998 PCH warning: an unknown error occurred.  An IntelliSense PCH file was not generated. ImageTargets D:\Unity\UWP\samples\ImageTargets\SampleApplication\AppSession.cpp 1

After reading this post and this post in stack overflow I've downloaded the Win10SDK_10.0.15063

The two errors remains.. I do have the vccorlib.h file why the AppSession.cpp cannot open it?

Is it possible to have different tracking modes for different image targets in the same game?

For example I want one image target to have extended tracking using the device pose, and I want other image targets with just normal tracking.

Thanks

I want the URL to be opened in a browser (youtube, twitter etc) when the Virtual Button is clicked in AR. Is there any sample script?