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

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

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

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

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

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

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. :(

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.

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.