Combine ARCore SDK and Vuforia 7.2 in the same project

Hello,

Since yesterday I'm trying to use both ARCore SDK and Vuforia 7.2 in a same Unity Project.
My goal is to use Vuforia for Image Recognition (because it has better results than ARCore Image Recognition), and ARCore for planes detection in order to place objects on surfaces (like in Ikea Place). I want to use ARCore instead of Vuforia Ground Plane because I want to access to some ARCore sdk components provided by their package : plane generator, pointcloud visualizer, environmental lightning, etc...

As you may know, in Unity's PlayerSettings/XR Settings, when we check both ARCore Supported and Vuforia Augmented Reality Supported, we have a warning message by Unity : "Both ARCore and Vuforia XR Device cannot be selected at the same time. Please select only one XR Device that will manage the Android device." (see attached file)

I am using Unity 2018.1.6. After having updated Vuforia to 7.2.24 and imported ARCore unitypackage 1.3.0, and after some debugging to build the application (I had to apply some changes to AndroidManifest.xml), I finally success to combine both sdk in a same project.

So I have a project with 3 scenes : the main scene with only 2 buttons permitting to load scene 1 or scene 2.
scene 1 is the example HelloAR from ARCore package, with a back button to go back to the main scene.
scene 2 is a basic Vuforia scene with only ARCamera and an ImageTarget, with back button too.
In XRSettings, both ARCore and Vuforia are checked.

And surprise : the application seems to work well, and I didn't expect that because of the red message from Unity specifying we don't have to select both ARCore and Vuforia in the same project. I can switch between the scenes and everything works as it should.

So, I don't get why there is such a warning message from Unity. What can be the issues having both ARCore supported and Vuforia Augmented Reality supported in the same project ?

 

It seems that you separate ARCore and Vuforia in different scenes.

Did you combine them into one scene successfully?

I am doing something similar as you, though Vuforia integrate ARCore in latest release, it seems
we can't get the sdk component such as pointcloud visualizaer and environmental lighting at the same time.

The problem I came across is that both Vuforia and ARCore has its own camera, how to combine them into one camera in the same scene.

 

I am curious about this too. The current version of Vuforia does not support camera autofocus with ARCore (which in turn DOES support autofocus, Vuforia just havent got to implement it yet). So I figured that I would install ARCore SDK alongside Vuforia and use the ARCore SDK to set the camer to autofocus mode. But creating the ARSession in the scene where Vuforia was used resulted in error. So I guess its not possible to bypass Vuforia.

 

hi, thank you for this information,
could you please tell me what changes did you make to the AndroidManifest.xml file in order to combine both SDKs

 

https://library.vuforia.com/content/vuforia-library/en/articles/Solution/arcore-with-vuforia.html
I think this link would help you

 

Vuforia seems to integrate arcore with it's own implementation, I can't get the sdk component from arcore. Similar to your test, creating the ARSession in the scene where enables Vuforia support leads to error. So far I have no idea how to integrate them and get the component from arcore.

 

I think this link is useless, I hope to get sdk component from arcore while enabling Vuforia support, However ,there doesn't exist the API to get the component in the document.

 

How about combine both SDKs in the same projects but in two different scenes as you did>?
What changes should be done in the Android Manifest file

 

Hi,
Sorry, I didn't view your question.

I could not combine ARCore and Vuforia in a same scene, but it works on 2 differents scenes : one scene for Vuforia and one scene for ARCore.

Here is the AndroidManifest.xml I used :

Code (CSharp):

1. <?xml version="1.0" encoding="utf-8"?>
2. <manifest
3.     xmlns:android="http://schemas.android.com/apk/res/android"
4.     package="com.unity3d.player"
5.     xmlns:tools="http://schemas.android.com/tools"
6.     android:installLocation="preferExternal">
7.     <supports-screens
8.         android:smallScreens="true"
9.         android:normalScreens="true"
10.         android:largeScreens="true"
11.         android:xlargeScreens="true"
12.         android:anyDensity="true"/>
13.  
14.     <application
15.         android:theme="@style/UnityThemeSelector"
16.         android:icon="@drawable/app_icon"
17.         android:label="@string/app_name">
18.       <meta-data tools:replace="android:value" android:name="com.google.ar.core" android:value="required"/>
19.       <meta-data android:name="unityplayer.SkipPermissionsDialog" android:value="false" />
20.       <activity android:name="com.unity3d.player.UnityPlayerActivity"
21.                   android:label="@string/app_name">
22.             <intent-filter>
23.                 <action android:name="android.intent.action.MAIN" />
24.                 <category android:name="android.intent.category.LAUNCHER" />
25.             </intent-filter>
26.             <meta-data android:name="unityplayer.UnityActivity" android:value="true" />
27.         </activity>
28.     </application>
29. </manifest>
30.  

Put it in Assets/Plugins/Android folder.

Does anyone have more information about Vuforia and ARCore integration ?

 

Hello,

I believe the Vuforia core samples on the Unity Asset store are probably the best reference for how to integrate Vuforia and ARCore. As long as ARCore is installed on the target device, and the device is supported by ARCore, then the samples and Vuforia's features can be run on device without modification.

Thanks,
Vuforia Engine Support

 

Thank you for this info, I will try that as soon as possible !

 

Hi again,

meedabit, I tried the Vuforia Core samples as you suggested, but I didn't find a way to get ARCore sdk components such as PointCloud visualizer or Environmental Lightning or even ARCloud Anchor. That is why I wanted to use both ARCore unitypackage and Vuforia in one project.

 

Hello @Snake9,

Not all ARCore features are exposed by Vuforia, only the ones that best drive primary SDK use cases.

Thanks,
Vuforia Engine Support