Steps for VR

  * Install Unity from https://unity3d.com/get-unity/download
  * Install editor (v 2021.3.) > Install
  * Add ‘Android Support + Open JDK + Android SDK and NDK Tools’ > Continue
  * Agree> Install
  * New Project > 3D (URP)

Setting up environment

  * Top right layout > Tall
  * Create scene, ‘Main scene’
  * Create > 3D object > Plane
  * Right click in project window
  * Create > material  

Enable VR environment using oculus integration

  * Install oculus integration package here https://assetstore.unity.com/packages ([[https://assetstore.unity.com/packages/tools/integration/oculus-integration-deprecated-82022|alternative link]])
  * Edit> project settings> XR Plugin management
  * Select ‘Oculus’ in windows and android
 
Fun part – Hand tracking

  * Delete ‘main camera’
  * Create > 3D object> cube
  * Search in project ‘OculusInteractionSampleRig’
  * Drag ‘OculusInteractionSampleRig’ to scene
  * Select ‘OVRCameraRig’
  * Change Tracking Origin Type to ‘Floor Level’ and Tracking support to ‘Hands only’
  * Look for ‘Left/Right HandAnchor’ under ‘OVRCameraRig’

Grabbing Object Interactor

  * Add ‘HandGrabInteractor’ to both ‘HandInteractor’ under InputOVR
  * Select ‘R/L Hand’ drag  ‘OVRGrabber’ to add elements in interactor
  * Check Parent Held Object or you will see some jumpiness when holding and object and moving your hands.
  * Add sphere collider to grab volume

Interactable

  * Add ‘rigidbody’ to the cube under add components for a cube.
  * Add ‘OVRGrabbable’


https://developer.android.com/tools/releases/platform-tools