using $timout

Hi,

i created a new project with a HoloLense and I am trying to switch between two Views with a application event ("Switch View").

I linked this application event to the "Navigate" option of both views and this works fine.

 

Now i want to slow it down a bit by waiting 1 second before the view switches. I thought about using: $timout. 

How do I use this function and where do I have to write the command. (Home.js or into the application event)

 

Thanks for your help!

 

Open source limitations

Hi,

 

I am a Ph.D. student and I developed an AR application with Vuforia. We are planning to publish a paper with the application and open source our code. But here is two problems:

1) Some of our code is modified from the sample code provided with the SDK. Can we open source / distribute our modified code?

2) Our application is based on SDK version 9.0.12. And I used native Android Java. So the latest SDK does not support our code any more. Is there a way for me to offer a link to the old version SDK to other people? Can I include the ".jar" file in my repo to open source?

 

Thank you 

Hi,

I will need to check with PM regarding this questions. Expect an answer somewhere next week form my side.

Thank you.

Vuforia Engine Support

Cost for Area Target application?

I do not understand the pay-as-you-go-model. Is there anywhere I can find information that can help me calculate what it might cost me to use Vuforia Area Targets in my project?

Hi,

The Developer license which is free, lets you test and prototype all our features.

When you want to publish the app, a paid licenses is required. More info regarding licensing is available here: https://www.ptc.com/en/products/vuforia/vuforia-engine/pricing

Something wrong with vuforia.com?

Is something wrong with the Vuforia site? I can not search the forum - I just get knocked out to the Home page - and a "Page not found"-message. I tried in 3 different browsers. On the Support Center / Popular Help Topics I get "Page not found" on ALL the topics. What is going on? Any clues?

Hi @Dweeh,

We did experience some short recurrent outages end of december.

The team was able to address them quickly and a broader investigation is on-going to understand the rootcause.

Thank you for letting us know.

Vuforia Engine Support

Hi @SHINTER,

Our dev team is investigating the issue. Will update the thread once the issue is solved.

Thank you for your understanding.

Vuforia Engine Support

Switching Scenes on click

Hi all,

Is is possible to be able to tap/mouse click on your AR object and then have it switch to another/scene and object?

Very new to Unity here, but am trying to find out what I will be able to do/learn to make a project that I have in mind happen.

Thanks in advance!

AR camera non-linear zoom to image-target based gameobject

Hi, I'm making a 2D map that is based of a image target (size: average credit card). I want to be able to zoom in on the map by moving the image target closer to the device camera (or moving the camera closer to the image target, depending on how you see it). However, the zoom should not be linear (as it is by default I guess), in other words,  shorter distance between image target (lets say moving the device from 20cm -> 15cm) and device  should cause more zoom, but if the distance is longer (100cm -> 95cm) it should not zoom as much. Im new to Vuforia and Unity so I don't know the correct terminology. Is this possible with Vuforia? And could any one help pointing me in the right direction. (Did not know in which sub-forum to put this post)

Image Targets

Hello Everyone !!

I'm using vuforia database in my unity AR project. Everything was working fine at last when I tried to run my app for final testing it shows pause button on playing and camera doesn't open (Don'tDestroyOnLoad was coming ) I tried reimporting all assets and all of my image targets that i had set earlier were turned pink. I tried reallocating them by dragging the image from vuforia folder but it turns pink again as i move to some other item .

     ScreenShots are below-

1. https://drive.google.com/file/d/1FXh74KaEN-9-zeFfGKZbD3jnTWKlARyW/view?usp=sharing

2. https://drive.google.com/file/d/1kK3SFhypqAFf373PdMkvn8c2qL_Pl5ln/view?usp=sharing

3. https://drive.google.com/file/d/1fP-T9Ic9lFGZadPfXr3vIOQufHZlGPlj/view?usp=sharing   (After clicling on any other image target the sun image get removed own its own)

 

I don't now why it is happening . if anyone knows please guide me.

 

 

Hi,

Could you please try the following?

1. Re-import the Vuforia Engine AR package from PackageManager.
2. Check to see if you have any old Vuforia assets in your Assets folder and delete them ( applies if this is not a new project)

Thank you.

Attachment

Vuforia V3.0 license agreement

My company is in charge to sustain an Android App that uses the Vuforia version 3.0 library. For compliance requirements we need a copy of the developer agreement for this specific version. I only found on the Vuforia website the most recent version of the developer agreement. How can I get the agreement for old versions?

Hi,

Vuforia 3.0 is quite an old version of the SDK, it don't believe it works with any current device.

Unfortunately the only available version is the one under here: https://developer.vuforia.com/legal/vuforia-developer-agreement

Thank you for your understanding.

Texture distortion

Hi all,

we are developing an Android application in Unity 2019.2.1f1 using Vuforia 8.3.8 to determine position and orientation of hand-written text in space. For this purpose we created a frame-shaped Image-Target. The written content is placed inside of the marker. Using the RegionCapture plugin (https://github.com/maximrouf/RegionCapture), we record the written content for further processing with OpenCV. At the end the results are pixel-wise compared with a given texture. Therefore the recorded texture should be quite accurate.

However tests revealed a slight distortion and shift of the content on the recorded texture, depending on the viewing angle of the mobile device.This definitely occurs before it reaches the OpenCV processing step. We analyzed this effect and it seems to be of an elliptical shape which let us think that it has something to do with the lense distortion of the camera. You can find a sample image attached. The black pencil strokes are the written content and the light lines behind are the recognized texture.

We took some research how to adapt the camera calibration in Vuforia. Unfortunately Vuforia seems not to support the change of the camera intrinsic parameters as described here: https://developer.vuforia.com/forum/general-discussion/how-vuforia-assign-camera-intrinsic-parameter-across-many-different-camera-devices.

Our next idea was to use a shader to undistort the camera image later on using calibration data obtained e.g. by OpenCV or Vuforia. However then we found https://developer.vuforia.com/forum/qcar-api/camera-calibration-problem, which means the camera image provided by Vuforia should already be undistorted, at least partially. Therefore it's not possible to use standard calibration data.

That's where we are stuck right now. Does anybody have an idea how to fix our problem?

Attachment

AR targets are not listed

Hello all,

I'm having trouble trying to get a list of my targets. Browser console show this error - see attachment.

Does anyone have a similar experience?

Radek

Hi,

Yes, we had for a short period of time an issue but this has been addressed.

Thank you for confirming.

Vuforia Engine Support

Attachment