Experimental: this API is experimental and might be changed or removed in the future.

XRRaycastSubsystem.Raycast

public bool Raycast(Vector3 screenPoint, List<XRRaycastHit> hitResults, Experimental.XR.TrackableType trackableTypeMask);

Parameters

screenPoint		The screen point from which to cast.
hitResults		The resulting list of XRRaycastHit.
trackableTypeMask		An optional mask of TrackableType to raycast against.

Description 描述

Casts a ray from a screen point against selected trackables (e.g., planes and feature points).

Casts a ray from a screen position against selected trackables in the Scene. trackableTypeMask defaults to TrackableType.All.

using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Experimental.XR;

public class RaycastExample : MonoBehaviour
{
    public XRRaycastSubsystem xrRaycast;
    private List<XRRaycastHit> m_RaycastHits = new List<XRRaycastHit>();

    private void Update()
    {
        if (Input.GetMouseButton(0))
        {
            // Only raycast against feature points and the exact plane boundries
            var hitMask = TrackableType.FeaturePoint | TrackableType.PlaneWithinPolygon;
            if (xrRaycast.Raycast(Input.mousePosition, m_RaycastHits, hitMask))
            {
                Debug.Log("Hit something!");
            }
        }
    }
}

public static void Raycast(Ray ray, Experimental.XR.XRDepthSubsystem depthSubsystem, Experimental.XR.XRPlaneSubsystem planeSubsystem, List<XRRaycastHit> hitResults, Experimental.XR.TrackableType trackableTypeMask, float pointCloudRaycastAngleInDegrees);

Parameters

ray		The Ray to use.
depthSubsystem		The XRDepthSubsystem to raycast against. May be `null`.
planeSubsystem		The XRPlaneSubsystem to raycast against. May be `null`.
hitResults		The resulting list of XRRaycastHit.
trackableTypeMask		An optional mask of TrackableType to raycast against.
pointCloudRaycastAngleInDegrees		When raycasting against feature points, cast a cone with this angle.

Description 描述

Casts a ray using ray against selected trackables (e.g., planes and feature points).

Use this method to raycast against selected trackables in the Scene. trackableTypeMask defaults to TrackableType.All.

When raycasting against TrackableType.FeaturePoint, Unity uses a cone defined by pointCloudRaycastAngleInDegrees. It defaults to 5 degrees.