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VuMark Instance

July 26, 2017 - 9:22am #1

Hello,

I am build an Untiy application, which is using VuMarks. I have created VuMarks that can symbolize up to 999 numeric id's, but actually I am only using a few of them.

The problem is, that the marker are detected, but mostly only 2 marker instances are loaded into the scene. Sometimes it loads a third one.

Marker instances in Unity means the GameObjects named "VuMark" and "VuMark(Clone)".

If these 2 or 3 instances are loaded, any new marker will be detected and "OnVuMarkDetected(VuMarkTarget target)" is called, but there is no new instance loaded of "VuMark(Clone)".

And sometimes it is parsing the wrong ID from the marker, but I think this is caused by the upper problem.

The next thing I am going to try is adding the VuMarks by myself from the Prefabs.

 

I hope someone could help me with that.

Thank you already

VuMark Instance

September 10, 2017 - 2:44am #10

Hello,

an short update on this issue.

I discovered, that the problem is reduced in Untiy version 2017. Sometimes it also occurs here, but mostly it works fine, at least in the editor. 

If I create a build for windows 10 uwp, the behaviour is completely different. A gameobject that is added to one VuMark is also displayed on all the other. 

While using Unity version 5.6, that should be supported by Vuforia, the problem occurred more frequently.

 

Thanks

VuMark Instance

August 10, 2017 - 1:35am #9

Hello Straza,

yes, I would like to track more than 2 VuMarks simultaneously and I am not able to do this.

But it is not necessary, in every case, that the VuMarks are in the cameras view at the same time.

I just need Unity to create the marker instances everytime a new marker is detected. Vuforia is detecting the marker and also is extracting its ID, but there is no marker instance generated in Unity.

Thanks

VuMark Instance

August 8, 2017 - 3:16pm #8

Simwo,

Apologies for the delayed response.

Are you wanting to detect more than 2-3 VuMark simultaneously and are unable to, or is the lack of clones being created causing another issue?

Thanks,

-Vuforia Support

VuMark Instance

August 1, 2017 - 7:58am #7

In my case, it was able to detect multiple VuMarks at once.

My question is more about the existence of the "VuMark(Clone)" object. Why did they get cloned automatically? And how can I avoid getting the child of "VuMark(Clone)" cloned? The clone mess up my program currently. 

Thanks!

Strasza wrote:

Hello Simwo and iDream0316,

Is the issue you're both facing related to not being able to detect multiple VuMarks at once? Or is it related to the existence of the "VuMark(Clone)" object?

Thanks,

-Vuforia Support

VuMark Instance

August 1, 2017 - 3:03am #6

Hello Strasza,

in my case its more the not exitsting of the "VuMark(Clone)"-Instance in Unity.

Vuforia is always able to detect a new marker and its ID, if it appears in the cameras view. 

But there are only 2-3 "VuMark(Clone)"-Instances created in Unity.

Every following detecetd VuMark is not attached to Unity.

 

I hope this could help

 

VuMark Instance

July 31, 2017 - 1:39pm #5

Hello Simwo and iDream0316,

Is the issue you're both facing related to not being able to detect multiple VuMarks at once? Or is it related to the existence of the "VuMark(Clone)" object?

Thanks,

-Vuforia Support

VuMark Instance

July 29, 2017 - 3:37pm #4

I am using numeric ID as well. 

 

"I tried to add the marker instances by myself." --> The system is adding the instances by itself. I wish it doesn't add the "Clone" instance by default. It is blocking my project currently.

I hope we can have help on this issue. :(

VuMark Instance

July 28, 2017 - 2:01am #3

Well 7 is much better than 2 or 3.



Maybe it has something to do with how many values are decoded in the marker?

Or the datatype is causing these different results? I am using the numeric ID´s.



I tried to add the marker instances by myself.

I could add a marker-instance as gameobject easily, but I actually found no way to register this gameobject as a trackable.



An explanation about the instance generation may would be helpful.

VuMark Instance

July 26, 2017 - 10:29pm #2

I have the same question as well. I am trying to understand the behavior of how VuMark(Clone) got generated. 

In my case, I created up to 99 numeric id's. And it was able to detect all markers correctly. The maximum number of VuMark instances in the scene was 7. ( 1 is original instance, other 6 were VuMark(Clone) )

Hope the ppl from vuforia can help to explain this.  

 

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