ARFoundation

游戏展示

ARDemo

游戏开发

安装 ARKit Package

Window
- Package Manager

搜索 AR

AR Foundation 必需
ARKit XR Plugin / iOS
ARCore XR Plugin / Android

打开 Package 时遇到网络问题

Network configuration

echo '#!/bin/bash
export HTTP_PROXY=proxy-url
export HTTPS_PROXY=proxy-url
nohup "/Applications/Unity Hub.app/Contents/MacOS/Unity Hub" &>/dev/null &' > launchUnityHub.command
chmod +x launchUnityHub.command

AR Session

删除自带的 Main Camera

Hierarchy
- Create
  - XR
    - AR Session
    - AR Session Origin
  - Cube
Inspector
- Position:
  - Y: 0.05
- Scale
  - X: 0.1
  - Y: 0.1
  - Z: 0.1
Gizmos
- 3D Icons: 0

Prefabs

Hierarchy
- Empty Object: Game Piece
- Game Piece
  - Cube

Quad / 四方块

Hierarchy
- Empty Object: Placement Indicator
- Placement Indicator
  - Quad
Inspector
- Rotation:
  - X: 90
- Scale:
  - X: 0.1
  - Y: 0.1
  - Z: 0.1

导入 `Toy Plane`

导入 package 后，模型调整一下。

模型有点大，可以调整 ARSessionOrigin，相关于缩小了模型尺寸

Inspector
- Scale
  - X: 10
  - Y: 10
  - Z: 10

脚本

屏幕中心点发出射线
如果射线与检测的平面相交
1. 在平面显示指示器
2. 如果点击指示器
  1. 指示器位置生成 Prefabs 模型

ARTapToPlaceObject.cs

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

public class ARTapToPlaceObject : MonoBehaviour
{
    public GameObject objectToPlace;
    public GameObject placementIndictor;

    private ARRaycastManager raycastManager;
    private Pose placementPose;
    private bool placementPoseIsVilid;

    void Start()
    {
        raycastManager = FindObjectOfType<ARRaycastManager>();
    }

    void Update()
    {
        UpdatePlacementPose();
        UpdatePlacementIndicator();

        if (placementPoseIsVilid && Input.touchCount > 0 && Input.GetTouch(0).phase == TouchPhase.Began)
        {
            PlaceObject();
        }
    }

    private void UpdatePlacementPose()
    {
        var screenCenter = Camera.current.ViewportToScreenPoint(new Vector3(0.5f, 0.5f));
        var hits = new List<ARRaycastHit>();
        raycastManager.Raycast(screenCenter, hits, TrackableType.Planes);

        placementPoseIsVilid = hits.Count > 0;
        if (placementPoseIsVilid)
        {
            placementPose = hits[0].pose;

            var cameraForword = Camera.current.transform.forward;
            var cameraBearing = new Vector3(cameraForword.x, 0, cameraForword.z).normalized;
            placementPose.rotation = Quaternion.LookRotation(cameraBearing);
        }
    }

    private void UpdatePlacementIndicator()
    {
        if (placementPoseIsVilid)
        {
            placementIndictor.SetActive(true);
            placementIndictor.transform.SetPositionAndRotation(placementPose.position, placementPose.rotation);
        }
        else
        {
            placementIndictor.SetActive(false);
        }
    }

    private void PlaceObject()
    {
        Instantiate(objectToPlace, placementPose.position, placementPose.rotation);
    }
}

导出游戏

File
- Build Settings (Shift + Cmd + B)

Build Settings

Player Settings

iOS
- Auto Graphics API: false ! importent
- Requires ARKit Support: true
- Camera Usage Description
- Target minimum iOS Version: 11
- Architecture: ARM64

如果不行，可以要以下设置

Graphics
- Always Includes Shaders
  - Elements 0: Sprites/Default
  - Elements 1: UI/Default

Android:
- Multithreaded Rendering: false
- Minimum API Level: `Android 7.0 ‘Nougat’ (API 24)

小结

参考：

Unity application doesn’t run on iOS due to Shader warning and Compiler failed with XPC_ERROR_CONNECTION_INTERRUPTED

1	using System.Collections;
2	using System.Collections.Generic;
3	using UnityEngine;
4	using UnityEngine.XR.ARFoundation;
5	using UnityEngine.XR.ARSubsystems;
6
7	public class ARTapToPlaceObject : MonoBehaviour
8	{
9	public GameObject objectToPlace;
10	public GameObject placementIndictor;
11
12	private ARRaycastManager raycastManager;
13	private Pose placementPose;
14	private bool placementPoseIsVilid;
15
16	void Start()
17	{
18	raycastManager = FindObjectOfType<ARRaycastManager>();
19	}
20
21	void Update()
22	{
23	UpdatePlacementPose();
24	UpdatePlacementIndicator();
25
26	if (placementPoseIsVilid && Input.touchCount > 0 && Input.GetTouch(0).phase == TouchPhase.Began)
27	{
28	PlaceObject();
29	}
30	}
31
32	private void UpdatePlacementPose()
33	{
34	var screenCenter = Camera.current.ViewportToScreenPoint(new Vector3(0.5f, 0.5f));
35	var hits = new List<ARRaycastHit>();
36	raycastManager.Raycast(screenCenter, hits, TrackableType.Planes);
37
38	placementPoseIsVilid = hits.Count > 0;
39	if (placementPoseIsVilid)
40	{
41	placementPose = hits[0].pose;
42
43	var cameraForword = Camera.current.transform.forward;
44	var cameraBearing = new Vector3(cameraForword.x, 0, cameraForword.z).normalized;
45	placementPose.rotation = Quaternion.LookRotation(cameraBearing);
46	}
47	}
48
49	private void UpdatePlacementIndicator()
50	{
51	if (placementPoseIsVilid)
52	{
53	placementIndictor.SetActive(true);
54	placementIndictor.transform.SetPositionAndRotation(placementPose.position, placementPose.rotation);
55	}
56	else
57	{
58	placementIndictor.SetActive(false);
59	}
60	}
61
62	private void PlaceObject()
63	{
64	Instantiate(objectToPlace, placementPose.position, placementPose.rotation);
65	}
66	}

ARFoundation

游戏展示

游戏开发

安装 ARKit Package

AR Session

Prefabs

Quad / 四方块

导入 `Toy Plane`

脚本

导出游戏

小结

下载

游戏

源码

游戏展示

游戏开发

安装 ARKit Package

AR Session

Prefabs

Quad / 四方块

导入 Toy Plane

脚本

导出游戏

小结

下载

游戏

源码

导入 `Toy Plane`