"We offer new support options and therefor the forums are now in read-only mode! Please check out our Support Center for more information." - Vuforia Engine Team

Unity5 Vuforia4 -Everything is flashing around my object when target detected

By KrakenRealtime on Mon, 03/09/2015 - 22:10

Vuforia SDK Version: vuforia-unity-mobile-android-ios-4-0-103 - Description with steps to reproduce:

Hi,

On android and IOS when I detect my target, the screen except the 3D objects displayed is flashing white (like a strobe).

I'm using Unity 5 pro 32bit (as I read that you aren't supporting the 64bit) and Vuforia 4: vuforia-unity-mobile-android-ios-4-0-103.unitypackage

I've tried to sandbox the issue, and with a simple scene using unity cubes and 7 colored materials, it is still flashing.

My scene is lightmapped.

I will edit this post as i'm testing everything.

Thank you very much in advance for your help.

B.

- Development OS (Mac OS X, Windows, Linux): Windows 8 pro - Mobile OS and Version: Android and IOS - Mobile Device Manufacturer and Model name: Ipad air and Galaxy S4 - Do the Vuforia Sample Applications show the same behavior?:

Unity5 Vuforia4 -Everything is flashing around my object when ta

What are the lightmapping settings that you are using - are the maps baked or realtime?

Unity5 Vuforia4 -Everything is flashing around my object when ta

The maps are baked and here are the settings: see attached

If tried with different settings: from 2 min to 2hours rendering time, but it is always the same problem. And as soon as I delete the lightmaps the problem disappear.

Thanks a lot for the help,

Unity5 Vuforia4 -Everything is flashing around my object when ta

Let me see if I can replicate this - to confirm, you are building all of your tests from 32bit Unity on OS X?

Also do you see the same in Play Mode or only on devices?

Unity5 Vuforia4 -Everything is flashing around my object when ta

I'm not in my office anymore, so I can't confirm that it is the same in play mode. I'm using unity 5 pro 32 bits on osx and on Windows 8 pro. Same scene, one for ios and one for android. When I bake with any settings and then build it's flashing, when I clear the lightmaps data it works again.

Unity5 Vuforia4 -Everything is flashing around my object when ta

KrakenRealtime:

Unity5 Vuforia4 -Everything is flashing around my object when ta

Hum that only the texture compression problem that causes blotchy maps. And I posted about the lightmaps compression. (the blotchiness appears on a non vuforia scene). The flashing problem isn't solved and comes from vuforia and lightmaps. Feel free to help me please!

Unity5 Vuforia4 -Everything is flashing around my object when ta

Ok, thanks for clarifying...

EDIT:

You mentioned in a previous post that you're using Unity 5 32bit on OSX;

Unity5 Vuforia4 -Everything is flashing around my object when ta

The issue is the same with unity 5 pro in osx, unity 5 pro 32bit on Windows 8 pro. Unity 5 pro 64bit gives errors and I've read that vuforia s not working on 64bit so I don't even try anymore on 64bit windows.

Unity5 Vuforia4 -Everything is flashing around my object when ta

Does anyone managed to recreate the same issue ? I still can't get it work. I tried again with a simple scene but still not working...

Thanks a lot for the help and support

Unity5 Vuforia4 -Everything is flashing around my object when ta

Please see my email.

Unity5 Vuforia4 -Everything is flashing around my object when ta

Hi,

All the above suggestions didn't work. The render isn't lost or toggled, in fact, it is the only stable thing on the screen, the 3D layer is fine, it is the filmed part that is flashing.

Let me know if I can run any other test.

Unity5 Vuforia4 -Everything is flashing around my object when ta

Same problem.

Videobackground is blinking on IPad. Looks like a series of white flashes.

Unity scene - Simple baked geometry + Standart mobile diffuse shader. Dual lightmaps.

Unity5 Vuforia4 -Everything is flashing around my object when ta

OK.. I solved my problem.

I replaced RenderVideoBackground and VideoBackgroung shaders on Unlit-Texture shader (in EmulatorVideobackground and VideoMaterial - materials)

Unity5 Vuforia4 -Everything is flashing around my object when ta

@

AlessandroB

Wed, 07/01/2015 - 10:39

Permalink

In reply to Unity5 Vuforia4 -Everything is flashing around my object when ta by alyhassan

Unity5 Vuforia4 -Everything is flashing around my object when ta

No need to replace any shader;
simply upgrade to Unity 5.1.1 or newer and the UI should be correctly rendered.
EDIT: