Hello,

I would suggest doing a performance evaluation with Extended Tracking enabled. This utilizes Vuforia for object recognition, and HoloLens for tracking. I believe you will see a performance improvement.

Thanks.

We don't use Extended tracking in this demo.

Our settings:

World center mode -> First Target

Camera Device -> MODE_OPTIMIZE_QUALITY

MAX Track Objects -> 1

Video Background -> Disable

Device Tracker -> Disable

Smart Terrain -> Disable

----------------------------------

Extended Tracking -> Disable

Preserve child size -> Disable

Hello,

Thanks for the helpful video. Can you confirm that Extended Tracking is enabled for the target?

Thanks.

Many thanks for your help.

About second question [ jitter ].. Here is video with reproduce bug.

https://youtu.be/l-_zN8p5XDQ

At first, we thought that the problem is related to infrared reflection.. But our research has not proved this.

Perhaps this is due to the accuracy and floating point operations.

Hello,

After additional investigation we believe the issue is a Unity bug introduced in 5.6:

https://fogbugz.unity3d.com/default.asp?899019_35ajcff7iq4voloc

The previous workaround posted that involved updating the Quality Settings for a Unity project is superseded by the following:

1. Open the Unity 5.6 HoloLens project
2. In the Hierarchy view, select "HoloLensCamera"
3. In the inspector, deselect the "Allows MSAA" option (see attached screenshot)

Thanks

Hello,

After some investigation, we have found a workaround to the "Y-axis transform on the ObjectTarget is inverted when app is running on Hololens" issue you raised:

1. Open the 5.6 HoloLens Unity project
2. Open Edit->Project Settings->Quality
3. Under the Windows Store build icon, deselect all Levels except "Good" (see attached image)

Now build and run your application. You should see that the object rotation now matches the rendered augmentation.

We are still looking into the source of the error (Unity 5.6 or Vuforia), and will update this thread with any additional information.

Thanks.

Hello,

Thanks very much for the report. I was able to recreate the issue you've observed. I'll update this thread if any new information is available.

For your second observation, I'm wondering if you have Extended Tracking enabled?

Thanks.