Personally I "fixed" this issue by enabling "Auto Graphics API" checkbox.

This way Unity will select at runtime which is the best set of API for the target smartphone

https://docs.unity3d.com/Manual/GraphicsAPIs.html

I fixed the really wierd rapidly changing stripes I had on my Samsung J5 by deleting the Vulkan.

Found this link and deleted Vulkan and checked OpenGLES3 was enabled/installed

https://forum.unity.com/threads/you-have-enabled-the-vulkan-graphics-api-which-is-not-supported-by-arcore.896741/

Having the same problem here on a Samsung S7. Wondering what worked the best as a fix? Disabling Vulkan? Are you out there, DuarteSz? :)

It works, thanks!!!

I have the same problem. My stripes are just diagonal and constantly changing from stripes to dots and so on. I use a Samsung J5 and I have never had this problem on it before :(

Same problem for me on Samsung A70. Is there a fix / work around?

Same problem for me with samsung galaxy tab a6, even if in the past I used it without any kind of issue like black stripes on screen.News?

Hi @ionutciobi,

The device does not appear to be in our recommended device list https://library.vuforia.com/content/vuforia-library/en/platform-support/vuforia-engine-recommended-devices.html and the device seems also not be supported by ARCore. https://developers.google.com/ar/discover/supported-devices

We recommend to use devices that are least supported by ARCore for an optimal experience.

Thank you.

Vuforia Engine Support

Same issue for me works perfect on most devices but on samsung j6 and maybe aother models it show that video rendering issue. i will try  aaron0512 sugestions and let you know if it worked for me also.

I got the same issue with you.And I solved it by delete "Vulkan" in Graphics APIs.Hope it can help you.

I have the same problem, but I notice that the black lines are only on the video background not on the object, so it's probably the VideoBackgroundShader's fault. I'll post if I find a fix.

I also tried changing the camera's near and far clipping planes to no avail.

EDIT:

Weird! I just disabled "Enable video background" and tested it, as I expected no video background = no stripes. Then switched it back on and voila!, the stripes are gone.

I solved this problem by landscaping to right side. Problem appeared only when I landscaped to left side.

Hello, 

I checked and with Core Samples apps the issue didn't show up.

Logcat dump in attachment.

Regards,

Krzysztof

Hi @krzysieknowicki @prnikiel

Could you please provide try and run the Core Sample apps on the device? and let me know if this is reproducible.

If its not, please provide as requested a logcatdump and confirm which Graphics API is being used.

Thank you.

Vuforia Engine Support

Hi @ MatejLetna,

Could you please provide a logcat dump when the issue has been reproduced?

Also could you please confirm if you have ARCore enabled and which Graphics API has been used OPEN GL ES 3 or 2?

Thank you.

Vuforia Engine Support

Hello,

I have the same problem. Every time when I turn my phone (android, samsung galaxy A5) and switch to landscape mode, stripes will appear. Stripes always have color of background color of ARCamera. Any tips or  workarounds, please?

Hello,

I have exactly the same issue as prnikiel.

Could somebody from Vuforia help with that ?

I have this black stripes problem too so any help is highly appreciated. The stripes appear on a Samsung S6 Edge but the app works fine on an LG G2.

Hi,

Any update on the issue? I'm experiencing the exact same problem, also on Huawei hardware. Both in landscape and portrait view.

Unity: 2019.2.14f1 

Vuforia: 8.5.9 and 8.6.7

Phone: Huawei P9 lite 2017 Android 8 (more than one phone)

I've tested the app on other decives with similar specs, it worked without any issues.

I've ran different AR app (made with different framework) on the same Huawei phone and it worked without any issues. I've also tested pure Unity game without AR and it also worked perfectly.

Please address this issue as soon as possible, I've already bought the license (since it worked well on different phones) and I am close to the app release date.

Thanks

I experienced a similar thing but could not find an answer yet. I seem to experience this problem only on a tablet and only when in landscape mode. Could be hardware related but may be useful to know. I attach the two (2) images from the tablet (but working fine on the PH-1).

Anyone see a similar thing happen.

Unity: 2019.2.12f1

Vuforia 8.5.9

Problems in landscape mode:

Tested on Huawei MediaPad T5

CPU Hisilicon Kirin 659

Android 8.0.0

Works perfectly well

Tested on PH-1

Android 10.0.0

Hi,

All the rendering is done by Unity. In this case, I would advise to test our Core sample apps from the Unity Asset Store on your device.

Beside testing this device as advised above, please try your app also on a different mobile/tablet.

Thank you.

Vuforia Engine Support