Raycast発行（非同期）

RaycastCheck.cs

using Unity.Collections;
using Unity.Jobs;
using UnityEngine;
using UnityEngine.AI;
using UnityEngine.Experimental.AI;

public class RaycastCheck : MonoBehaviour
{
    [SerializeField] Transform start, target;

    private NavMeshQuery query;
    private JobHandle handle;

    private NativeArray<NavMeshHit> hits;
    private NavMeshLocation location;

    private void OnEnable()
    {
        query = new NavMeshQuery(NavMeshWorld.GetDefaultWorld(), Allocator.Persistent);
        hits = new NativeArray<NavMeshHit>(1, Allocator.Persistent);
        location = query.MapLocation(start.position, Vector3.up * 10, 0);
    }

    private void OnDisable()
    {
        handle.Complete();
        hits.Dispose();
        query.Dispose();
    }

    private void Update()
    {
        handle.Complete();
        handle = new RayCastCheckJob()
        {
            query = query,
            location = location,
            hits = hits,
            startPos = start.position,
            targetPos = target.position
        }.Schedule(handle);

        handle = new LogJob()
        {
            hits = hits
        }.Schedule(handle);
        JobHandle.ScheduleBatchedJobs();
    }

    struct RayCastCheckJob : IJob
    {
        [ReadOnly]
        public NavMeshQuery query;
        [WriteOnly]
        public NativeArray<NavMeshHit> hits;

        public NavMeshLocation location;
        public Vector3 startPos, targetPos;

        public void Execute()
        {
            location = query.MoveLocation(location, startPos);

            query.Raycast(out NavMeshHit hitcheck, location, targetPos);
            hits[0] = hitcheck;
        }
    }

    struct LogJob : IJob
    {
        [ReadOnly]
        public NativeArray<NavMeshHit> hits;

        public void Execute()
        {
            Debug.Log(hits[0].hit);
        }
    }
}