Orient game object to user by Billboard of MRTK

Summary

Q. How to keep a GameObject oriented towards the user?
A. Use Billboard component.

Prerequisites

• MRTK v2.7
  • Mixed Reality Toolkit Foundation
• Unity v2020.3.20f1
• Windows 21H1

Steps

In your MRTK based scene, do the following steps:

1. Add empty object.
2. Add UI Backplate.prefab into the empty object.
   • The prefab can be found in Packages/com.microsoft.mixedreality.toolkit.foundation/SDK/StandardAssets/Prefabs.
   • Adjust scale it.
3. Add UITextSelawik.prefab into the empty object.
   • The prefab can be found in Packages/com.microsoft.mixedreality.toolkit.foundation/SDK/StandardAssets/Prefabs/Text.
4. Add Billboard component to the empty object.
   • Billboard has properties. Detail is here:
     • Billboard Class (Microsoft.MixedReality.Toolkit.UI) | Microsoft Docs
5. Adjust position of the empty object.

References

1. Billboarding and tag-along – Mixed Reality | Microsoft Docs
2. Billboard Class (Microsoft.MixedReality.Toolkit.UI) | Microsoft Docs