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@h_koya(原口 昂弥)

MRTK2.7.3 + AzureSpatialAnchorsSDK2.12をHoloLens2、Android、iOSで動かす

Last updated at Posted at 2022-02-18

環境

  • Windows10 PC
  • iPhone 12 Pro
  • HoloLens2
  • Android 10
  • Unity 20203.4f1

Azure

Azureポータルにログイン
Spatial Anchors Accountsにアクセス
各種値を入力して作成
下記値をメモしておく。
Account ID , Account Domain , Access Key

Unity

Unity HubからProjectを作成
image.png

MixedRealityFeatureToolを起動しProjectPathを指定
image.png

Azure Spatial Anchors SDK2.12 にチェック
image.png

MixedRealityToolkit Foundation 2.7.3にチェック
image.png

Mixed Reality OpenXR Plugin1.3.1にチェック
image.png

Get Features → Import → Approve → Exit
image.png

Unityのポップアップで[yes]を選択→再起動
MRTK Project Configurator でOpenXRを選択
image.png

XR Plug-in Management Settingsに移動
image.png

ProjectSettings
PCタブでOpenXR→Microsoft HoloLens feature groupにチェック
image.png

UWPタブでOpenXR→Microsoft HoloLens feature groupにチェック
image.png

iOSタブでARKitにチェック
image.png

AndroidタブでARCoreにチェック
image.png

OpenXRの設定に移動し下記設定
Render Mode -> Single Pass Instanced
Depth Submission Mode -> Depth 16 Bit4
Interaction Profiles → Microsoft Hand Interaction Profile
image.png

MRTK Project Configuratorに戻り Next → Apply
image.png
image.png

MRTK Project Configuratorを開く
image.png
Next → Next → TMPをインポート → Done

パッケージマネージャーを開き下記PackageをImport
image.png
image.png
ARKit XR Plugin 4.2.2
AR Foundation 4.2.2
ARCore XR Plugin 4.2.2

File → NewScane → Basic → Create
image.png

シーンを保存
image.png

シーンにMRTKConfigureを追加
image.png

Create Empty → 名前をSpatialAnchorManagerに変更
AddComponent → Spatial Anchor Manager
Spatial Anchor Manager のインスペクターから下記変数にAzureの値を入力
Spatial Anchors Account Id
Spatial Anchors Account Key
Spatial Anchors Acccount Domain
image.png

3D Object > Cube > 名前をAnchorに変更
Transform.Scale X:0.1 Y:0.1 Z:0.1
AddComponent → NearInteractioinGrabbable
AddComponent → ObjectManipulator
image.png

Prefab化してScaneから削除

Create Empty → 名前をTestに変更
AddComponent → NewScript → Test

Test.cs
using UnityEngine;
using Microsoft.Azure.SpatialAnchors.Unity;
using System.Threading.Tasks;
using Microsoft.Azure.SpatialAnchors;
using System;
using TMPro;

public class Test : MonoBehaviour
{
    [SerializeField] private SpatialAnchorManager spatialAnchorManager = default;
    [SerializeField] private GameObject anchorPrefab = default;
    [SerializeField] private TMP_Text text = default;
    private bool onClickedNext;
    private string anchorId;
    private GameObject anchor;

    private async void Start()
    {
        while (true)
        {
            await AnchorTest();
        }
    }

    public async Task AnchorTest()
    {
        // アンカーの作成テスト
        text.text = "Start Editor Test";
        await WaitOnClickedNext();
        text.text = "Start Session";
        await spatialAnchorManager.StartSessionAsync();
        anchor = Instantiate(anchorPrefab);
        text.text = "Place Anchor";
        await WaitOnClickedNext();
        text.text = "Save Anchor";
        var cloudNativeAnchor = anchor.AddComponent<CloudNativeAnchor>();
        await cloudNativeAnchor.NativeToCloud();
        while (!spatialAnchorManager.IsReadyForCreate)
        {
            await Task.Delay(330);
            float createProgress = spatialAnchorManager.SessionStatus.RecommendedForCreateProgress;
            createProgress = createProgress < 1 ? createProgress : 1;
            text.text = $"Spatial Scanning\nProgress rate\n{(int)(createProgress * 100)}%";
        }
        var cloudAnchor = cloudNativeAnchor.CloudAnchor;
        cloudAnchor.Expiration = DateTimeOffset.Now.AddDays(1);
        await spatialAnchorManager.CreateAnchorAsync(cloudAnchor);
        anchorId = cloudAnchor.Identifier;
        text.text = "Saved Anchor";
        await WaitOnClickedNext();
        text.text = "Stop Session";
        await WaitOnClickedNext();
        spatialAnchorManager.StopSession();
        await spatialAnchorManager.ResetSessionAsync();
        Destroy(anchor);

        // アンカーの表示テスト
        text.text = "Start Viewer Test";
        await WaitOnClickedNext();
        text.text = "Start Session";
        spatialAnchorManager.AnchorLocated += OnCloudAnchorLocated;
        void OnCloudAnchorLocated(object sender, AnchorLocatedEventArgs args)
        {
            if (args.Status != LocateAnchorStatus.Located)
                return;

            UnityDispatcher.InvokeOnAppThread(() =>
            {
                anchor = Instantiate(anchorPrefab);
                var cloudNativeAnchor = anchor.AddComponent<CloudNativeAnchor>();
                cloudNativeAnchor.CloudToNative(args.Anchor);
                text.text = "Anchor Located";
            });

        }
        var anchorLocateCriteria = new AnchorLocateCriteria();
        anchorLocateCriteria.Identifiers = new string[] { anchorId };
        await spatialAnchorManager.StartSessionAsync();
        var watcher = spatialAnchorManager.Session.CreateWatcher(anchorLocateCriteria);
        text.text = "Spacial Scanning";
        await WaitOnClickedNext();
        text.text = "Stop Session";
        await WaitOnClickedNext();
        spatialAnchorManager.AnchorLocated -= OnCloudAnchorLocated;
        spatialAnchorManager.StopSession();
        await spatialAnchorManager.ResetSessionAsync();
        Destroy(anchor);
    }

    private async Task WaitOnClickedNext()
    {
        onClickedNext = false;
        while (!onClickedNext)
        {
            await Task.Delay(100);
        }
    }

    public void OnClickedNextButton()
    {
        this.onClickedNext = true;
    }
}

Testのインスペクターから下記変数を登録
SpatialAnchorManager → シーンのSpatialAnchorManager
AnchorPrefab → 先ほど作成したAnchorのPrefab
image.png

Packages > Mixed Reality Toolkit Foundation > SDK > Features > UX >interactable > Prefabs >PressableButtonHoloLens2_48x48 ドラッグアンドドロップしてシーンに追加
Transform.Position.z → 0.5
ButtonConfigHelper > OnClick に Test > OnClickedNextButtonを登録
image.png

File > Save でシーンを保存

HoloLens2

Baseを開いた状態で
File > Save as... > HoloLens2
image.png

File > Build Settings > UWP > Switch Platform
MRTK Project Configurator が出てくるのでApply > Next

シーンに戻りMixedRealityToolkitを選択 → DefaultHoloLens2ConfigurationProfileに変更
AddComponent → ARAnchorManager

MixedRealityPlayspace > MainCamera の子オブジェクトとして UI > TextMeshProを作成
下記変更を加える
Canvas
MRTK Canvas に変更
Pos X:0 Y:0.1 Z:0.8
Width:0 Height:0
Scale X:0.001 Y:0.001 Z:0.001
image.png

TextMeshPro-Text
FontSize:20
Width:400
image.png

TestのインスペクターからTextに作成したオブジェクトをセット

File > Save
File > Build Settings
Add Open Scenes で Scenes/HoloLens2を追加
Build > sinファイルを開いてDebug

Android・iOS

Baseを開いた状態で
File > Save as... > Mobile
image.png

MixedRealityToolkitを選択
Copy&Customize → Clone
Camera > Clone > Camera Settings Providers > Add Camera Settings Provider
New data provider > Type > UnityAR > UnityARCameraSettings
image.png

XR > AR Session Origin を追加
AddComponent → AR AnchorManager
image.png

XR > AR Session を追加
image.png

UI > TextMeshPro-Textを追加
RectTransformの値を変更
Left,Top,Right,Bottom → 50
Anchors Min X:0 Y0 Max X:1 Y:1
image.png
TestのインスペクターからTextに作成したオブジェクトをセット

File > Save
File > Build Settings
Add Open Scenes で Scenes/Mobileを追加しScanes/HoloLens2のチェックを外す

Android

Switch Platform > Android
MRTK Project Configurator > Apply > Next > Done
Player Settings > Playerに移動
Other Settings > Graphics APIs からVulKanを削除
Publishing Settings > Custom Main Gradle Template にチェック
Assets\Plugins\Android\mainTemplate.gradleを開きdependenciesに下記2行を追加

implementation('com.squareup.okhttp3:okhttp:[3.11.0]')
implementation('com.microsoft.appcenter:appcenter-analytics:[1.10.0]')

File > Build Settings > Build

iOS

Switch Platform > iOS
MRTK Project Configurator > Apply > Next > Done
File > Build Settings > Build

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