Teleport system does not work with Azure Remote Rendering (ARR)

ky0214-vfa 1

Azure Remote Rendering (ARR) and teleport system are used simultaneously.

We use the teleport system to move to any point on a 3D model, but ARR must always be run.

We have confirmed that the teleport system works by itself, but this feature does not work properly on HoloLens.

Our developers believe that the loading of the ARR library is preventing the teleport system from working.

Is it possible to use teleport system and AAR together? Please let us know. Thank you in advance.

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1 answer

Hernando Ren 2,171 Reputation points

2022-03-10T06:51:57.473+00:00

Hello, Welcome to Microsoft Q&A,

Teleport System only works on the immersive HMD experiences (OpenVR, WMR). For AR experiences (like HoloLens), the MRTK teleportation system is not active. So, it has nothing to do with Azure Remote Rendering.

For more information please see:Teleport system

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2 people found this answer helpful.
ky0214-vfa 1 Reputation point

2022-03-11T06:41:42.17+00:00

Thank you for your response.
Sorry I did not check the references thoroughly.

Could you please tell me one more thing to add.
Before using teleportation, I used to capture 3D models and create 2D mini-maps.
I was considering how to specify the point on the 2D map that I wanted to move and then move the main camera based on the difference between the coordinates of the original position and the coordinates I wanted to move.

However, this method did not work.
We found that this solution did not work properly when the size of the 3D data was large.

If you have a general solution to this problem, please let me know.

Thank you in advance for your help.

Hernando Ren 2,171 Reputation points

2022-03-15T03:11:58.523+00:00

First, as the design principle of the HoloLens app, the application shouldn't be in control of the position, orientation, and intrinsic properties of the camera. Rather, the position and orientation of the camera are implicitly controlled by the user's movement.
So, as a workaround, you can move your 3D Hologram in relative orientation and keep the camera right there to achieve the same goal.

ky0214-vfa 1 Reputation point

2022-03-16T23:41:36.437+00:00

Thank you for your response.

Like you said, at one time we even tried to modify the logic to move the 3D Hologram to fit in the camera.

If the size of the 3DHologram was small it worked fine.
However, we believe that if the size of the 3DHologram is large it will not work well.

In that case, we recognize that we have to modify the 3DHologram directly to reduce its size. Am I correct?

Christopher Manthei 251 Reputation points Microsoft Employee

2022-03-17T11:01:17.247+00:00

@ky0214-vfa if you do intent to teleport the camera in ARR by moving the camera's parent game object, you need to make sure that it has a stage space component attached to it. Otherwise local and remote content will no longer align. However, instead of teleporting the camera I can only emphasize the advice from the previous comments: apply the inverse transform the the object instead. It will result in the same image if done correctly.
Regarding your model, you will only run into issues with scaling if your model is so big that you run into floating point precision issues. You will have the exact same issues independent of whether you move/scale the camera or the model. To minimize floating point issues, make sure your ARR model is converted with recenterToOrigin set to true. This will ensure that you make the best use of the floating point precision.
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Teleport system does not work with Azure Remote Rendering (ARR)

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