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Overview

I encountered a strange problem when I was developing a software based on HoloLens environment.

I built a project on Unity and imported the Mixed Reality Toolkit (MRTK) package. According to the instructions of the official website, I exported the FBX model from City Engine to HoloLens, and the Unity console didn't prompt any errors.

Then the problem is coming, the HoloLens System terminated when I used VS 2017 to debug the proposed program in Hololens, and the interface of HoloLens displayed the following information: "trying to map your surrounding" (Figure 1).

enter image description here

2018.11.15 Update

I rebuilt this project and exported to Hololens Emulator,this error happened.

 If your machine has multiple graphics adapters, Unity may have created a WindowContext on the wrong adapter. If you experience a black screen when playing, please restart the Editor.
 
(Filename: C:\buildslave\unity\build\Runtime/VR/VRDevice.cpp Line: 218)


The referenced script on this Behaviour is missing!
 
(Filename: C:\buildslave\unity\build\Runtime/Mono/MonoBehaviour.cpp Line: 1510)


The referenced script on this Behaviour (Game Object 'International City_0') is missing!
 
(Filename: C:\buildslave\unity\build\Runtime/Mono/MonoBehaviour.cpp Line: 1753)


Setting up 1 worker threads for Enlighten.

  Thread -> id: 550 -> priority: 1 

UnloadTime: 6.645600 ms

Holographic Tracking State Lost. New State: 1
 
(Filename: C:\buildslave\unity\build\Runtime/VR/HoloLens/HoloLensWorldManager.cpp Line: 166)


Failed to get spatial stage statics - can't retrieve or interact with boundaries! Error code: '0x80040154'.

The results in Hololens Emulator display picture

However, I noticed that the Unity console didn't show any errors when HoloLens crashed. So I did the following tests to solve this problem:

1 Based on this project, I removed all the scripts and other models, leaving only the model and the scenes (camera, cursor, input module) configured by MRTK. It does not work.

2 Based on this project, I replaced FBX model with the sample CUBE model, and the other remains unchanged. There was no such problem occurred when I posted the revised project to HoloLens.

3 Finally, I tried to remove the MRTK package, leaving only the FBX model and compiling the release model to the Windows platform. The program is running normally and no error is reported.

The size of FBX model is about 27 MB (Figure 2):

enter image description here

Are these problems are caused by the incompatibility between HoleLens and FBX model?

How can I solve this problem?

Unity Editor Version

2017.2.1f1

Mixed Reality Toolkit Release Version

2017.2.1.4

Community
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Yongpan Bie
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  • Welcome to SO! This is normal! Just look around in your room a bit so the HoloLens can internally create a 3D model of your room by spacial mapping. This question has nothing to do with programming though.. – derHugo Sep 21 '18 at 05:01
  • As people already commented on [your issue report](https://github.com/Microsoft/MixedRealityToolkit-Unity/issues/2551) this comes from the HoloLens OS itself and has nothing to do with your scene in Unity. It occurs if you move to fast / haven't scanned the room yet / move outdoor or in a large room without significant points to track / tab the cameras / ..... – derHugo Sep 21 '18 at 05:08
  • Thanks.But it remained this scene whatever I do anything.when I debug this app, there was no situation you listed.Only this app stuck in this error,while other remained ok.I thought if it was because the model was too complicated(about 16000 child gameobject )or the scale of model was too big for a room. – Yongpan Bie Sep 26 '18 at 11:41

0 Answers0