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Issues with live preview

September 22, 2016 - 9:52am #1

Hey everyone,
I experienced a weird occurrence. I created an App with vuforia in Unity. I can deploy and run it on the hololens. Everything works well. But if I want to use the app while the live preview of the hololens is active the image target detection gets blocked. If I first detect the target and after that shut down the vuforia behaviour Script, so that the hololens takes over for tracking, I can activate the live preview and everything is ok. Just the target recognizing part is making problems.
Did anyone else experience this behaviour? Does anyone have a (workaround) Solution?
The live preview gets streamed through WLAN and I tested every three quality settings for the stream. Nothing actually changed.



Issues with live preview

March 22, 2017 - 2:36am #7

Has anyone found a solution to this? I have managed to turn the tracking and camera off which would then allow Live Streaming from the Hololens but sometimes the model loaded once the image has been tracked then disappears.

Issues with live preview

March 9, 2017 - 8:56am #6

same problem. I badly need live stream to demonstrate my APP to my Boss.

Issues with live preview

February 23, 2017 - 8:22pm #5

Same prob here

Issues with live preview

February 16, 2017 - 10:32pm #4

Video camera on HoloLens can be accessed only one process at a time. When Vuforia is doing its thing, the live stream cannot render camera data. You can stream the 3D models, but only against a black background.

Check "Simultaneous MRC Limitations" from https://developer.microsoft.com/en-us/windows/holographic/mixed_reality_capture_for_developers

Tracking and streaming simultaneously might be a distant fantasy. You can record a video inside Unity, though, if need be.

Issues with live preview

October 1, 2016 - 7:10am #3

Hi Michael,

Because HoloLens are so new and so pretty expensive it's better to ask that question directly vuforia's and Microsoft's support teams and then publish here your findings.



Issues with live preview

September 24, 2016 - 5:52am #2

Same issues. Anybody fix this problem? Looks like Vuforia disable live recording.

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