[ar learning] - II. Environment construction

1. install Unity Hub

• Preface
  We only do iOS End , An zhuodang doesn't engage in , But Android can refer to
  Official website

1. As shown in the figure below , download
   
2. Add the template

• Additional explanation
  In preferences , You can set the language
  
  

4. Open the interface

2. doSomethings

• Additional explanation
  Hierarchy: Meaning of hierarchy
  
• Lower left Project–>Assets in

1. establish Prefabs Folder
2. establish Scripts Folder

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1. stay Hierarchy Blank space of , Right click , establish AR Default Plane

2. take AR Default Plane Drag and drop to Prefabs In the folder
3. Scenes in , modify Scene The name is HelloWorld

4. add to AR Plane Manger

5. Generally, there will be AR Plane Manager, Then we won't add any more -_- !

6. Click Replace AR Plane Manager Medium Plane Prefab, Replace with Prefabs1
   

7. In the folder we created Scripts Add C# Script
   

8. To configure AppController

• Will just create C# Rename the script file to AppController, double-click , If your computer has Visual Studio Code, Will open
  

9. scripting

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.XR.ARFoundation;
using UnityEngine.XR.ARSubsystems;

[RequireComponent(typeof(ARRaycastManager))]

public class AppCoontroller : MonoBehaviour
{
  public GameObject spawnPrefab;
  static List<ARRaycastHit> Hits;
  private ARRaycastManager mRaycastManager;
  private GameObject spawnedObject = null;

  // Start is called before the first frame update
  void Start()
  {
      Hits = new List<ARRaycastHit>();
      mRaycastManager = GetComponent<ARRaycastManager>();   
  }

  // Update is called once per frame
  void Update()
  {
      if (Input.touchCount == 0) 
      {
          return;
      } 

      var touch = Input.GetTouch(0);
      if (mRaycastManager.Raycast(touch.position, Hits, TrackableType.PlaneWithinPolygon | TrackableType.PlaneWithinBounds))
      {
          var hitPose = Hits[0].pose;
          if (spawnedObject == null)
          {
              spawnedObject = Instantiate(spawnPrefab, hitPose.position, hitPose.rotation);
          }
          else
          {
              spawnedObject.transform.position = hitPose.position
          }
      }
  }
}

3. Ready to run

1. Add one Cube