Resolved Black Screen-Unity AR Camera not Working

Hi everyone,

I am new to Unity and I was following a tutorial online: Getting Started with ARFoundation in Unity on Youtube. I am using Unity 2019.3.9.f1 and have downloaded the following packages:

AR Foundation

ARCore XR Plugin

ARKit XR Plugin

I tried building and testing to an Android phone (Samsung Galaxy S4) but the screen just turned up black (this changed as I altered the color of the background on the AR camera). The unity logo popped up before it but there was no prompt to ask for camera permission. To test if this was just a phone problem, I downloaded an AR app from Playstore and that seemed to work. Multi-threaded Rendering is off, ARCore is switched to optional. I'm not sure what's wrong.

Could you guys help me out? Thanks! Let me know if more info is needed.

 

Have you enable ARCore in XR Setting?

 

Even I'm facing the same problem. Yes I have enabled and tried the XRCore option. And now the option to grant the permission to enable the camera in android also doesn't pop up.
I have tried with 2 different phones but nothing seems to work.

 

It's hard to estimate the issue without seeing the project, probably there is something wrong in the build settings. For starting it might be the best to study the provided samples by unity:

https://github.com/Unity-Technologies/arfoundation-samples

 

I was having the same issue with Android; it was working on iOS. This article helped me resolve it.

https://arvrjourney.com/running-arc...eshooting-with-android-phone-mac-8eb1d59f95f2

I needed to install the XR-subsystem package and then set the Android settings. Display the project settings window go “XR Plug-in Management” and switch on ARCore supported.

 

Thanks to ManjitSBedi's help. I had the same issue but for iOS. I just needed to tick the checkbox for ARKit for Initialize XR on Startup and that fixed it.

 

In addition, AR Core is not supported on all Android phones.
See list of supported devices: https://developers.google.com/ar/discover/supported-devices#google_play

 

Thank you that is working.

 

Try Installing ARCore SDK instead of ARCore XR plugin and after that select the android SDK path manually. Also, use ONLY ARCore Supported Device

Thank Me later!!!!

 

Thank you so much!!

 

I'm still having the issue even after going through everything. I'm on a MacBook Air and I'm trying to test launch to an iPhone 12 X. any info to help would be great!! (This is what my camera looks like btw)

 

ARCore... and arfounation seems frustrating to me. I just bought a phone, so I could learn this stuff, found a reasonable affordable phone on the list..... it turns up, and using the git-hub demo scene Check_Support turns out the phone on the ArCore list is not actually of any use.

Brill!!

Am I missing something? Does the demo scene check is AR-Core is actually on the phone?

 

Installing ARCore SDK? How? You mean by installing Android Studio?

This black screen issue is driving me nuts!

 

I apparently, have a device which is Supported. It is listed on Google's list for ARCore.... and I have ticked the ARCore XR box ..... but apprently using 2020.3 and ARfoundation 4.0, but still using the demo scenes from the github repo it still says not compatible.

Am I missing something? Hard to believe, ArCore phone, with Google Play services for AR is installed ( so I can assume the phone and android version is supported).

My phone is : Xiaomi Redmi Note 9S ..... and is on the list.

 

@MicKre, @AnthonyJackson81 please check the official AR Foundation Samples repo. Maybe you have missed something when setting up your AR scene:
https://github.com/Unity-Technologies/arfoundation-samples

 

Hey cheers. I did start here with the Simple AR and the Support Checker Scenes.... Its a brand new phone, with the sole purpose of using for Learning/Development of AR, I felt I did my homework on what models support ARCore.

my phone is definitely on this list. https://developers.google.com/ar/devices

I'll go over the repo and setup again tomorrow, but I felt like I spent a few hours going through all possible issues on Friday.

Could it be ArFoundation are too 'new'. Is there a preferred version combo like ArFoundation 3.0 and 2019.x ?

OR could it be the Manufacturers of the phone just not playing ball, despite Google Having tested it and listed it?

 

The AR Foundation is stable and it's 100% safe to make production quality apps with it. But it requires some experience to set up.
Each Unity version has its own 'verified' AR Foundation version. For example, for Unity 2019.4.24 the verified AR Foundation version is 2.1.18.

 

Thank you. I thought that might be the case. Is it documented anywhere? or is it a case of trial and error?

Edit : I Looked through the docs and matched my Unity Version to the AR-Foundation, AR-Core verions. Still no luck. 150quid on a new phone, ouch...thinking although my phone is on the google list... its not quite 100% true.

I feel like Im ok with setting this stuff up, I have been working on a coupe of XR (VR Oculus) projects from scratch, there seems to be some overlap in the packages used.

I was trying to use 2020.3 LTS. With Foundation 4.2.0

 

Ok, So if I build an Run I can get there, which is some progress.

However, Unity Remote fails/black screen. Interesting.

 

Unity Remote app doesn't support AR Foundation.

 

Thank you! I just came across a previous post from yourself and saw this is the case.

Its not great but at least I can work through some basics now and begin, albeit with longer iteration times than Im used to.

Thanks for your input/patience. Your comment about version got me looking a bit deeper into matching up Unity Version with the correct ARFoundation.

Cheers!!!

 

Morning 2 of my AR learning..... I already feel like KirillKuzyk, you plugin is going to give me back some years. Building and Running to even understand the ARFoundation samples, is a pain no? Looks like your plugin is a lifesave.

 

If you are using URP watch this. It was my issue.

 

Problem fixed here :

 

When using URP, make sure to add the "AR Background Render Feature" to the render settings.
So by default that would be the forward renderer. Find the "ForwardRenderer" scriptable object in your project and add the feature

And of course make sure you deleted the standard main camera in your scene and have added AR Session and AR Session Origin from the menu GameObject > XR.

 

THX a lot bro!

 

Thanks to ManjitSBedi it works now on Android

 

This did the work for me. THX bro

 

I am working on AR a app. I download a model from link and show in a AR view in app. Model download and show properly in editor but in build only eyes of model show. Model not show properly in Build android. I am using unit version 2020.3.15 and dlc (model) make in same version of unity. Help me asap.

Thank you

 

This solved my problem. Thanks a lot, JelmerV!

 

I followed this video to fix my problem. But when I add the New ARE Background Renderer Feature to the Universal Render Pipeline Asset_Renderer, there is no ARBackgroundRendererFeature script attached to it. And also, I still have the black screen problem. Does anyone know why there is no script attached?

 

https://forum.unity.com/threads/arf...k-screen-and-no-tracking.915527/#post-6374280

 

Thank you for your reply. I made sure to follow the steps in the post but the problem still remains. In this screenshot you can see that my URP renderer looks different and doesn't have the script.

 

If any of the above did not work and if you are trying to do a production build then make sure minify options in publishing settings are unchecked....i dont know y but it worked for me