Augmented Reality for UE4

[AdamHorvath]

Hi,

I think you have to disable datasmith before publishing to iPad.

Hello - I purchased your plugin as I am very pleased. One thing - I'm using the latest unreal 4.24 - I can always get the sample to run with no problems.. The moment I enable DataSmith plugin - UE4 is ask to restart once I restart it and push the app to the IPAD - the app always crashes. Something about Plugin blastplugin failed to load because module BlastCore could not be found? Thats the message on the IPAD.

Any ideas?

[Tishawn Fahie]

Thanks I manage to get this working - One last question - I managed to change the model from the bike to a simple mesh when the image is detected - Is there away to keep the model (mesh) there on the image..... even after i move away from the image instead of it disappearing ?

[Carlos Flores]

Hi everyone.

How can you prevent the 3D model from shaking so much?

I have tried enabling and disabling the set filter node, playing with Sample Rate and Cut Off Freq values with no significant change.

What's the best way to get rid of the jittering? What else could I try to fix it?

Thank you.

Here's a link to showing the issue:

[AdamHorvath]

Hello Carlos,

There are 3 nodes that can help. All the 3 has an example in the demo project, you can play with settings to find the best for your environment.

http://ar.uplugins.com/set-filter/
http://ar.uplugins.com/set-threshold-mode/
http://ar.uplugins.com/set-threshold/

One more thing I see on your video is the small relative size of the marker. Try to go closer so the marker will be bigger.

I hope it helps.

Hi everyone.

How can you prevent the 3D model from shaking so much?

I have tried enabling and disabling the set filter node, playing with Sample Rate and Cut Off Freq values with no significant change.

What's the best way to get rid of the jittering? What else could I try to fix it?

Thank you.

Here's a link to showing the issue:

[Gosettiks]

Hello Adam,

I have a problem with calibrating my android tablet camera. I have installed an app on my tablett, and another one on my PC. So I can use my tablet as a webcam. So far so good.

I then use camera_calib.exe file for generating camera_para.dat file like it is described here:
http://www.daslhub.org/unlv/wiki/dok...nxt_ar_toolkit

I did it twice, but I am not happy with the result. All tracked marker (I took some squared control planes for checking) are 2D shifted against live camera stream.
Is there a way to edit camera_para.dat by hand ? Just to set a different "Point of Interest" or similar?
Calculated FOV seems to be ok, marker lines are parallel by any viewing angle but still not matching. (its 2D shifted)

There are other tools for generating camera_para.dat like described here:
http://www.hitl.washington.edu/artoo...on.htm#onestep

Is this older or newer? Or even more exact? I do not have any calib_dist.exe or calib_cparam.exe. Where can I download?

Do I even have to change some C++ lines or xml or whatever.
Of course, I can change camera yaw and pitch a little to compensate this shift in bluprint, but I would like to do a more proper calibration.

Thanks, Peter

[ScitechDev]

Hi Adam, first of all thank you for creating a really well made AR plugin that works for Windows, most of them are Android/IOS only.
I have two questions:
1. can I have 2 of the same type of markers on screen at once? For Examples 2 Hiros on screen.
2. How do I set the Camera resolution to 1080p or 720p 30fps and have that setting save each time I play?

I am also really struggling to figure out how to get NFT markers working?
I've read through the doc, but it's not very helpful in explaining how to actually test the Data set?
https://github.com/artoolkitx/artool...ng-NFT-markers

[Carlos Flores]

Hello Carlos,

There are 3 nodes that can help. All the 3 has an example in the demo project, you can play with settings to find the best for your environment.

http://ar.uplugins.com/set-filter/
http://ar.uplugins.com/set-threshold-mode/
http://ar.uplugins.com/set-threshold/

One more thing I see on your video is the small relative size of the marker. Try to go closer so the marker will be bigger.

I hope it helps.

Thank you very much for your reply Adam.

I've been doing some tests with these 3 nodes you recommended. What I could find out was that the set threshold mode and set threshold nodes have to do only with marker recognition by the camera in terms of brights and darks for easy recognition (good to have that, very useful) and the set filter node has more to do with the jittering or vibration at positioning the 3D models in relation to the marker position, but I can't seem to soften the vibration in any way. Is there any other solution I can try to improve the vibration problem? By the way, I cannot increase the size of the marker due to the nature of the project, it needs to be in a certain place and not larger than a certain size to work for the purpose I am pursuing. Do you have any other suggestions?

Thank you very much.

[AdamHorvath]

Hello,

1. No, you have to use different markers.

2. You can set everything at startup when the "Show PIN" checkbox is checked.
http://ar.uplugins.com/init/

My recommendation is to use only 4:3 resolutions like 800x600 or 960x720

3. Please find all the required tools for creating NFT markers (genTexData.exe is located in the /bin folder)
https://drive.google.com/open?id=1bY...Zl9eJ9BtPGQGqM

- Generate the NFT files using the following guide:
http://web.archive.org/web/201712261...r_nft_training

To use the new NFT:

- Put the generated files to Content/ARToolkit/DataNFT
- Add the name of your marker to the MarkersNFT enumeration in the unreal editor.
- Use this new name for the GetMarkersNFT node.

Hi Adam, first of all thank you for creating a really well made AR plugin that works for Windows, most of them are Android/IOS only.
I have two questions:
1. can I have 2 of the same type of markers on screen at once? For Examples 2 Hiros on screen.
2. How do I set the Camera resolution to 1080p or 720p 30fps and have that setting save each time I play?

I am also really struggling to figure out how to get NFT markers working?
I've read through the doc, but it's not very helpful in explaining how to actually test the Data set?
https://github.com/artoolkitx/artool...ng-NFT-markers

[AdamHorvath]

There should not be that much jitter, even with the default settings.

Check out this video:
https://www.youtube.com/watch?v=9VyhCu1Qxxo


What is your framerate ?

Thank you very much for your reply Adam.

I've been doing some tests with these 3 nodes you recommended. What I could find out was that the set threshold mode and set threshold nodes have to do only with marker recognition by the camera in terms of brights and darks for easy recognition (good to have that, very useful) and the set filter node has more to do with the jittering or vibration at positioning the 3D models in relation to the marker position, but I can't seem to soften the vibration in any way. Is there any other solution I can try to improve the vibration problem? By the way, I cannot increase the size of the marker due to the nature of the project, it needs to be in a certain place and not larger than a certain size to work for the purpose I am pursuing. Do you have any other suggestions?

Thank you very much.

[ScitechDev]

Hello,

1. No, you have to use different markers.

2. You can set everything at startup when the "Show PIN" checkbox is checked.
http://ar.uplugins.com/init/

My recommendation is to use only 4:3 resolutions like 800x600 or 960x720

3. Please find all the required tools for creating NFT markers (genTexData.exe is located in the /bin folder)
https://drive.google.com/open?id=1bY...Zl9eJ9BtPGQGqM

- Generate the NFT files using the following guide:
http://web.archive.org/web/201712261...r_nft_training

To use the new NFT:

- Put the generated files to Content/ARToolkit/DataNFT
- Add the name of your marker to the MarkersNFT enumeration in the unreal editor.
- Use this new name for the GetMarkersNFT node.

Hi Adam, thank you for the reply.

1. With the marker tracking if I have multiple of the same marker on screen, it bugs out and doesn't display a model on either of the markers until I remove both from the view.
Is there a way to track the first marker, and keep tracking the first marker if another of the same type is added to the view?

2. This setting does not Save, and I have to go through the checkbox every time, which I do not want, I want to be able to set up the parameters once.
How I can set web camera source parameters?
- Resolution
- FPS
- Video Format
- Color Space

3. Thank you, I managed to get that working

[AdamHorvath]

1.

The current setup doesn't allow that.


2.

Camera settings are not exposed for blueprints.

In the source code ARToolkitDevice.cpp line 548

config << "-devNum=" << devNum<<" -flipV ";

You can add other options after the "-flipV" argument according to the docs
https://github.com/artoolkitx/artool...tion-reference

Theoretically it should work, but I had no luck with my logitech webcam.

Hi Adam, thank you for the reply.

1. With the marker tracking if I have multiple of the same marker on screen, it bugs out and doesn't display a model on either of the markers until I remove both from the view.
Is there a way to track the first marker, and keep tracking the first marker if another of the same type is added to the view?

2. This setting does not Save, and I have to go through the checkbox every time, which I do not want, I want to be able to set up the parameters once.
How I can set web camera source parameters?
- Resolution
- FPS
- Video Format
- Color Space

3. Thank you, I managed to get that working

[Tishawn Fahie]

Hello All, I'm still struggling with this - everything is working fine except the people im showing this project to want the model stay on the market when I move away from it and not disappear. Any ideas?

Otherwise this plugin is fantastic!!!

[cocoa ra]

hi i want to use this plugin with Intel realsense
so i need to recompile artoolkit library
which version of artoolkit is in your latest plugin??

[AdamHorvath]

ARToolkit 5.3

You can download from here:
https://drive.google.com/open?id=1bY...Zl9eJ9BtPGQGqM

hi i want to use this plugin with Intel realsense
so i need to recompile artoolkit library
which version of artoolkit is in your latest plugin??

[salim]

Hi Adam
I have purchased your plugin and follow your steps to build a project from the sample .
when I start the project showing me this message
https://drive.google.com/open?id=1g8...kjZYkxxnq2DFNQ

can you please tell me how to fix this problem, thanks