WebXR XR Interaction Toolkit Bridge

Summary

• Package to correspond values from De-Panther's unity-webxr-export to InputSystem and XR Interaction Toolkit
• Currently VR is the only supported use case (and only with controllers and not hand tracking)
• The current stage is very barebones, missing many features

Functionality

• Controllers fully functional with XRIT
  • Recommand using the XRIT prefab rig with XRIT Starter Asset Samples (get from Unity Package Manager)
  • Controllers values (position, rotation) are passed to XRIT through InputSystem
• Cameras (Left, Right) created when entering WebXR VR mode
  • Camera on XRIT prefab rig not used
  • Camera values from the rig (which is tagged as MainCamera) not copied over
  • Headsets values (position, rotation) are passed to XRIT through InputSystem

Use

• Use the XRIT prefab rig with XRIT Starter Asset Samples (get from Unity Package Manager) <Optional, Recommanded>
  • Put the XRIT prefab into scenes
• Follow, until before build, unity-webxr-export page
  • Note webxr-interaction is not used or required (and can be omited)
• Import
  • 
  • Add the included Prefab in scenes (does not need to be parented)
• Continue following unity-webxr-export page
  • Note some web server throws error relating to compression, if so, disable Compression at Project Settings > Player > Web tab(the icon left of Android) > Publishing Settings > Compression Format

Missing features

• Hand tracking (bridge WebXR to com.unity.xr.hands)
• Better way to handle the Camera(s), options:
  1. Do some calculation and troubleshoothing to use the existing XRIT prefab camera
     • Create and Set correct steroViewMatrices and steroProjectionMatrices on Camera.main
     • Figure out how to enable stero on Camera.main when entering VR mode
  2. Copy Camera.main settings to the created camera
     • Have a camera (maybe a 3rd one that does not render) acting as Camera.main (disabling the Camera component on the GameObject tagged with MainCamera will set Camera.main to null)
     • Copy camera settings to and from the original main camera