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Packages/com.unity.xr.openxr/Samples~/ControllerXRInput/Scripts/MarkLateLatchNodeXRInput.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.XR;
+using UnityEngine.XR.OpenXR.Input;
+
+namespace UnityEngine.XR.OpenXR.Samples.ControllerSampleXRInput
+{
+    public class MarkLateLatchNodeXRInput : MonoBehaviour
+    {
+        [SerializeField]
+        XRDisplaySubsystem.LateLatchNode m_LateLatchNode;
+
+        // Set one pose type usage for each hand to be late latched - e.g.: Aim, AimPosition, Grip, or GripPosition. For head node, leave it unset.
+        [SerializeField]
+        string m_UsageName;
+
+        InputDevice m_Device;
+        XRDisplaySubsystem m_DisplaySubsystem;
+
+        bool TryEnsureLateLatchCalled()
+        {
+            if (m_Device.isValid)
+                return true;
+
+            m_Device = InputDevices.GetDeviceAtXRNode(ConvertLateLatchNodeToXRNode(m_LateLatchNode));
+            if (!m_Device.isValid)
+                return false;
+
+            if (!string.IsNullOrEmpty(m_UsageName))
+                OpenXRInput.TrySetControllerLateLatchAction(m_Device, m_UsageName);
+
+            return true;
+        }
+
+        XRNode ConvertLateLatchNodeToXRNode(XRDisplaySubsystem.LateLatchNode node)
+        {
+            switch (node)
+            {
+                case XRDisplaySubsystem.LateLatchNode.Head:
+                    return XRNode.Head;
+
+                case XRDisplaySubsystem.LateLatchNode.LeftHand:
+                    return XRNode.LeftHand;
+
+                case XRDisplaySubsystem.LateLatchNode.RightHand:
+                    return XRNode.RightHand;
+
+                default:
+                    return XRNode.Head;
+            }
+        }
+
+        void Start()
+        {
+            List<XRDisplaySubsystem> subsys = new List<XRDisplaySubsystem>();
+            SubsystemManager.GetSubsystems<XRDisplaySubsystem>(subsys);
+
+            if (subsys.Count >= 1)
+                m_DisplaySubsystem = subsys[0];
+        }
+
+        void Update()
+        {
+            if (!TryEnsureLateLatchCalled() || m_DisplaySubsystem == null)
+                return;
+
+            transform.position += new Vector3(0.00001f, 0, 0);
+            Quaternion rot = transform.rotation;
+            rot.x += 0.00001f;
+            transform.rotation = rot;
+            m_DisplaySubsystem.MarkTransformLateLatched(transform, m_LateLatchNode);
+        }
+    }
+}