Augmented Reality for UE4

[AdamHorvath]

Hi,

You can find an example blueprint for this in the full version. It’s not part of the DEMO version.

Just create a new camera, and transform it using the output of the get marker node’s camera position / rotation vectors.

@miolfo;604342

Hi,

I’m interested in creating a level in which the Camera is moved instead of the augmented object. In GetMarker-blueprint node there are outputs for Camera position and rotation vectors, but no explanation on how to use them. Which camera should I move around to achieve this?

Regards,

[AdamHorvath]

@Orkney;603956

Hi ,

Im having trouble on IOS, I have successfully deployed to IOS but when the game starts I get the ‘webcam init failed’ error with the UI showing and a white background. I searched this thread and found Android users suffering the same problems, so I am not quite sure where to go from here. I can send you the logs if you tell me where I can find them, I assume they will be in the IOS Devices directory?

Hi ,

Please send me the log to info@unreal4ar.com

[anonymous_user_a8f59290]

Oh my god!!! This is really awesome. I’m also a senior developer so I can understand the value of it.

[CornKrue]

Hi ,

Is there any way to rotate the Camera stream OR the UI (probably the worse option) for 180°? At the moment, the device’s Camera Points to the bottom, which is quite unpractical in some use cases.

Also would it be possible to use the “tap to focus” feature like in the iOS photo app or somehow else improve camera focus and resolution without decreasing the marker recognition ability?

Thank you for your help!

[anonymous_user_67dee382]

Hi ,

i am a pretty dump new learner,I just want to know how you trigger the fighting scene matinee.i am still clueless.please tell me a little bit

[alerosas2]

Hi .

I own the full version of the plugin, i have tried to run the sample project (Motorcycle one) deployed on an ipad pro with ios 10, and it crashes during the splash screen every time, tried the same project with an iphone 5 with ios 9 and it works fine, is there any way to fix this or do i have to wait for an update of the plugin?

thanks in advance

[phoenixsampras]

Hello,

Please some help!

I paid for the licence, now im trying to compile the APK for android, but im getting this error when opening the app in the smartphone:

E/libEGL ( 6844): called unimplemented OpenGL ES API
E/libar ( 6844): Error (2): unable to open camera parameters file “/storage/sdcard1/UE4Game/ew_ar3/ew_ar3/Content/ARToolkit/Data/camera_para.dat” for reading.
E/libar ( 6844): No such file or directory

If I copy the file manually it works, but I dont understand why the file is not being packed or copied?

EDIT: many attempts later, this files were also missing:

Screenshot

How to fix this problem?

Thanks for the urgent help!

[rranon]

@alerosas2;607444

Hi .

I own the full version of the plugin, i have tried to run the sample project (Motorcycle one) deployed on an ipad pro with ios 10, and it crashes during the splash screen every time, tried the same project with an iphone 5 with ios 9 and it works fine, is there any way to fix this or do i have to wait for an update of the plugin?

thanks in advance

I confirm the issue. I am using the latest version of the plugin, UE 4.13.1, Xcode 8. Either launching from UE4 or packaging and installing the provided ArtToolKitAdvanced demo on an iPhone 5SE with iOS 10.0.2 results in the app crashing during splash screen.

[AdamHorvath]

Hi,

Please make sure to generate the .obb file too. Otherwise it won’t be able to find the required data files.

@phoenixsampras;607739

Hello,

Please some help!

I paid for the licence, now im trying to compile the APK for android, but im getting this error when opening the app in the smartphone:

If I copy the file manually it works, but I dont understand why the file is not being packed or copied?

EDIT: many attempts later, this files were also missing:

Screenshot by Lightshot

How to fix this problem?

Thanks for the urgent help!

[AdamHorvath]

Hi,

I could not reproduce the issue…

Just tried with 4.13.1 and iOS 10.0.2 using iPhone 5S, and worked without any issues.
Did you get any error message in your output log ?

(I am using this free app to debug iOS errors, https://lemonjar.com/iosconsole/)

@rranon;608193

I confirm the issue. I am using the latest version of the plugin, UE 4.13.1, Xcode 8. Either launching from UE4 or packaging and installing the provided ArtToolKitAdvanced demo on an iPhone 5SE with iOS 10.0.2 results in the app crashing during splash screen.

[AdamHorvath]

Not yet, only landscape and portrait modes with auto focus are supported at the moment, but I put this to my todo list and will add it to later versions.

@CornKrue;606708

Hi ,

Is there any way to rotate the Camera stream OR the UI (probably the worse option) for 180°? At the moment, the device’s Camera Points to the bottom, which is quite unpractical in some use cases.

Also would it be possible to use the “tap to focus” feature like in the iOS photo app or somehow else improve camera focus and resolution without decreasing the marker recognition ability?

Thank you for your help!

[rranon]

@;608617

Hi,

I could not reproduce the issue…

Just tried with 4.13.1 and iOS 10.0.2 using iPhone 5S, and worked without any issues.
Did you get any error message in your output log ?

(I am using this free app to debug iOS errors, https://lemonjar.com/iosconsole/)

I have attached the crash report. In particular, it says: “This app has crashed because it attempted to access privacy-sensitive data without a usage description. The app’s Info.plist must contain an NSCameraUsageDescription key with a string value explaining to the user how the app uses this data.”

When you tried to reproduce the issues, did you create a new project with a new name? Because maybe, if you used the name of a previous iOS app, that app was already authorised for the camera … just trying to guess.

[AdamHorvath]

Hi,

Thanks for the logs, it makes sense now …
I removed the app from my iPhone first, and launched again from UE4 editor. It asked for permission for the first run and worked the same way as before.

I’ll try with different project name.

Thanks again!

@rranon;609002

I have attached the crash report. In particular, it says: “This app has crashed because it attempted to access privacy-sensitive data without a usage description. The app’s Info.plist must contain an NSCameraUsageDescription key with a string value explaining to the user how the app uses this data.”

When you tried to reproduce the issues, did you create a new project with a new name? Because maybe, if you used the name of a previous iOS app, that app was already authorised for the camera … just trying to guess.

[AdamHorvath]

@rranon;609002

I have attached the crash report. In particular, it says: “This app has crashed because it attempted to access privacy-sensitive data without a usage description. The app’s Info.plist must contain an NSCameraUsageDescription key with a string value explaining to the user how the app uses this data.”

Hi rranon,

According to this link:

Privacy Settings in iOS 10

seems like if you are compiling your app against the new iOS SDK 10, you need to add an extra key/value pair to your info.plist file to have camera access.
(If you are using the previous iOS 9 SDK, like I do the app will work on both iOS9 and iOS 10 without the extra key/value pair)

Add permission in info.plist file base on your error log.

NSCameraUsageDescription

<key>NSCameraUsageDescription</key>
<string>$(PRODUCT_NAME) camera use.</string>

In UE4 ->Project settings -> iOS there is an extra PList data field, where you can add the text above.

[anonymous_user_b28d45881 (anonymous_user_b28d4588)]

Hey Trying to use the plugin v 1_6r2 with unreal 4.13.1 in OSX 10.11.16.
I get this…

[AdamHorvath]

Hi,

You need to compile the missing module from source.

Please follow the steps below:

1. Install xcode from apple app store
2. unreal engine editor (4.10, 4.11, 4.13 or later)
3. Create a new C++ code project without starter content
4. Copy all files from SampleProject directory to your new project directory
5. In UE4 editor File -> xcode project (optional)
6. Exit from unreal engine editor
7. your new project from epic launcher
8. Click on rebuild missing DLLs when prompted
9. Optional: Click on File -> Package project -> OSX

@iLLogic808;610412

Hey Trying to use the plugin v 1_6r2 with unreal 4.13.1 in OSX 10.11.16.
I get this…

[anonymous_user_b0d2c0de]

Hey Guys,

Today is my 3rd day on Unreal. So very new. I am really trying to develop something for a project at work. I need to get a Full Screen Webcam stream in Unreal. I have Unreal4.13. Can anyone please show me how to do this or have got a plugin that I can import? Please help. Any help is appreciated.

Regards,
Sameer

[AdamHorvath]

Hello Sameer,

Welcome to the unreal community!

If you download the free DEMO version of the plugin from UNREAL4AR.COM , you can try the basic example with webcam stream.

Instructions to get started:
http://www.unreal4ar.com/getting-started-demo/

I hope it helps!

@SameerDeakin;610847

Hey Guys,

Today is my 3rd day on Unreal. So very new. I am really trying to develop something for a project at work. I need to get a Full Screen Webcam stream in Unreal. I have Unreal4.13. Can anyone please show me how to do this or have got a plugin that I can import? Please help. Any help is appreciated.

Regards,
Sameer

[rranon]

@;610409

Hi rranon,

According to this link:
http://useyourloaf.com/blog/privacy-settings-in-ios-10/

seems like if you are compiling your app against the new iOS SDK 10, you need to add an extra key/value pair to your info.plist file to have camera access.
(If you are using the previous iOS 9 SDK, like I do the app will work on both iOS9 and iOS 10 without the extra key/value pair)

Add permission in info.plist file base on your error log.

NSCameraUsageDescription

<key>NSCameraUsageDescription</key>
<string>$(PRODUCT_NAME) camera use.</string>

In UE4 ->Project settings -> iOS there is an extra PList data field, where you can add the text above.

Hi ,

thanks for looking into this. I didn’t even know I was compiling using iOS 10 SDK, I thought I was using the 9 SDK …

[Anonymous_005c554f4834d18aad8d2e6ef25ec6bd (咬大人)]

@;604893

Originally Posted by Orkney View Post
Hi ,

Im having trouble on IOS, I have successfully deployed to IOS but when the game starts I get the ‘webcam init failed’ error with the UI showing and a white background. I searched this thread and found Android users suffering the same problems, so I am not quite sure where to go from here. I can send you the logs if you tell me where I can find them, I assume they will be in the IOS Devices directory?

Hi ,

Please send me the log to info@unreal4ar.com

Hi ,
Im having the same problem.Do you find how to resolve this issue?
Thank you for your help!

Li.