clickした先で衝突判定があった場合cloneを生成

CreateRayPoint.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class CreateRayPoint : MonoBehaviour
{
    [SerializeField]
    private float distance = 20.0f;
    [SerializeField]
    private GameObject clone;
    private Camera camera;

    private void Start()
    {
        camera = GetComponent<Camera>();
    }

    // Update is called once per frame
    void Update()
    {
        if (Input.GetMouseButtonUp(0))
        {
            Ray ray = camera.ScreenPointToRay(Input.mousePosition);
            RaycastHit hit;
            if (Physics.Raycast(ray, out hit, distance))
            {
                Instantiate(clone, hit.point, Quaternion.identity);
            }
        }
    }
}