hz-unity-meta-interaction-sdk

Meta XR Interaction SDK (com.meta.xr.sdk.interaction.ovr)

Use ISDK for interaction on Meta VR

The Core SDK (com.meta.xr.sdk.core) gives you the headset - camera rig, tracking, OVRManager. It does not give you interaction. ISDK is the interaction layer. Don't hand-roll grabbing on OVRInput, raycasts, or trigger colliders: ISDK already models hover/select state, pose conforming, throw velocity, and interactor arbitration, and a hand-rolled version drifts from platform behavior.

Do not infer cross-platform intent - default to OVR, switch only if the user says so, and state which backend you used.

Set interactions up through the Quick Actions APIs, not by hand. OVRQuickActionsAPI builds the rig; QuickActionsAPI makes objects interactive and equips interactors. Reach for manual prefab assembly only when a Quick Action cannot express what you need - and say so.

Meta's own guidance too: Quick Actions are "the fastest and recommended way" to add the rig (docs).

Quick start

using Oculus.Interaction.Editor.QuickActions;         // QuickActionsAPI
using Oculus.Interaction.OVR.Editor.QuickActions;     // OVRQuickActionsAPI

// Delete the default Main Camera first - ISDK brings its own camera rig.

// 1. Rig: comprehensive interaction rig (hands + controllers + every interactor + visuals),
//    plus an OVRCameraRig if the scene has none.
OVRQuickActionsAPI.AddOVRInteractionRig();

// 2. Interactable: adds Rigidbody + Grabbable + a HandGrab/Grab interactable child.
var cube = GameObject.CreatePrimitive(PrimitiveType.Cube);
cube.transform.localScale = Vector3.one * 0.1f;
cube.transform.position = new Vector3(0f, 1.0f, 0.4f);   // in reach at a FloorLevel origin
QuickActionsAPI.AddGrabInteraction(cube);