plattysoft / artoolkitjpctbaselib Goto Github PK

Just downloaded source and imported the library, getting this errror when trying to build the project

Error:Execution failed for task ':ArJpctBaseLib:transformNativeLibsWithStripDebugSymbolForRelease'.

java.lang.NullPointerException (no error message)

Camera parameters have to be downloaded from ARToolkits server. This uses a curl command to get the file.

It would be nice to cache camera parameters on a device so that once a device has connected to the server once and downloaded this file once it does not have a dependency on being online again.

Not sure how possible this is but worth some investigation.

Perhaps we could even provide a small cache of popular devices' parameter files so that the user never actually needs to be online. Or is there a way to do this at install time when the user is obviously connected to the internet?

Hi! Thanks for this project, I was searching for this exact thing. Can someone help me better understand how it works though?

I was trying to create an app for NFT tracking. I saw in "Other notes" that I can use the ARToolKitJpctBaseLib exactly in the same way as ArBase. However, as the NftWitModels example is already created, can I just change some specific parts in that and use it directly?
Furthermore, can you provide us with a guide as to how we can use our own images and 3D-models in this app? (At this moment, the image to be seen by the phone is "moon_ground", the texture is "astnt1_1" and the model is "astronaut1.3ds", am I right?)

Thanks in advance!

Following the instructions on the projects GitHub landing page, I suffer from circular references and generally unable to build the source.

I noticed after running the sample codes that it was taking a very long time before the markers would initialize but after it found them the first time everything was perfect. From a little research it seems that the camera calibration server that is being used is down so you have to wait for a timeout after starting the app.

Is these any way I can work around this please?

How to create a custom NFS marker let's say a qr code?

And how to put in my custom model instead of astronaut? Is simply adding a new .ds model enough?

This is an issue related to ARToolkit but, as this library is intended to make things easy for the user, perhaps we can provide some additional utility classes.

ARToolkit includes three types of marker configuration strings:

single;path_to_pattern_file;pattern_width
multi;path_to_mutli_config_file
nft;path_to_pattern_file;pattern_width

These are very poorly documented on ARToolkit's website and if you have lots of marker types you could end up littering your code with specially formatted strings with no contextual information about what the different parts represent. E.g.

private String marker = "single;data/pattern;80";

'Single' what? '80' what?

I propose we add a utility to encapsulate this special formatting:

public interface MarkerConfigString
{
    String getNative();
}

public class SingleMarkerConfigString implements MarkerConfigString
{
    private static final String FORMAT = "single;%s;%d";

    public SingleMarkerConfigString(final String pathToPatternFile, final int patternWidth)
    { /* set fields */ }

    public String getNative()
    {
        return String.format(FORMAT, pathToPatternFile, patternWidth);
    }
}

// etc.

If we then update TrackableObject3D to take a MarkerConfigString rather than a regular string, it's immediately obvious for a user what the available options are by looking up the concrete implementations. Additionally, they don't have to read the documentation to find out what format the string needs to be in.

When I open the example projects my Gradle sync fails. The error message is:"The system cannot find the file specified". The file it refers to is "local.properties", i e this row:
properties.load(project.rootProject.file('local.properties').newDataInputStream())

Hi mate....

I using your library that help me for making AR 3d feature in my app.

But I got trouble when I uploaded the app to Google Play.

My app is rejected by Google.

The Reason is any 3rd party / library that use openSSL with old version.

OpenSSL

The vulnerabilities were fixed in OpenSSL versions beginning with 1.0.1h, 1.0.0m, and 0.9.8za. To confirm your OpenSSL version, you can do a grep via:

$ unzip -p YourApp.apk | strings | grep "OpenSSL"

You can find more information and next steps in this Google Help Center article.

OpenSSL

The vulnerabilities were addressed in OpenSSL 1.02f/1.01r. To confirm your OpenSSL version, you can do a grep search for:

$ unzip -p YourApp.apk | strings | grep "OpenSSL"

You can find more information and next steps in this Google Help Center article.

Can you fix it? Please :) hehe

Thanks

Hi,

I'm using Lenovo TB2-X30L 10.1 inch tablet. I can't change default camera preview resolution which is 320x240.

Things I already tried:

Modifying preferences.xml, changing values such as pref_defaultValue_cameraResolution but didn't help.

Going to settings (Camera preference activity), it allows me to change and select resolution but after confirming the change, resolution remains the same.

Then I tried importing the whole library as source and going to ARActivity.java, tried changing width/height variables in cameraPreviewStarted() method but then the app crashes and nothing starts.

In this forum https://archive.artoolkit.org/community/forums/viewtopic.php?f=28&t=23113&p=28378&hilit=320#p28378 they advice to decompile Assets/Plugins/Android/ResLib-release.aar file, modify it and compile it back again. However this advice is only for arunity library. Our library doesn't use these files.

Any ideas how to make it work?

Hi..Thanks for the project.
I downloaded the projects and all the three samples are compiled fine but 'ArJcptSample' and 'CubeSample' are not running in my mobile.
Where am i wrong?

I have a fbx file i want to load it using ArToolKitJpctBaseLib. @plattysoft , @michaelboyles want to achieve something similar to Shifu app

Has someone an idea how correctly calculate field of view? Seems to be working while setting view to 1080p on 720p device (SONY Z3 Compact), or 720p on 720p device (Samsung Galaxy Tab 2). Unfortunately, 1080p on 1080p device (HTC one m8, Sony Z1) is not working. Please, share any solutions or ideas.

Edit:
On 1080p devices 3d models are smaller, and are not stuck to marker (follows camera like in parallax effect).
It's known issue since 2015. I hope someone has figured solution out.

Edit2:
I have calibrated HTC by "ARToolKit Camera Calibrator" from Google Play. It's working good now.
But on SONY Z1 is bug as in https://github.com/artoolkit/artoolkit5/issues/131

I have another a with nftwithmodels project. Im trying to scan hiro and kanji markers from my pc monitor but 3d model doesn't work.

ArJcptRenderer encapsulates World, Camera and FrameBuffer objects. These fields should be accessible in some way. For example, I needed all 3 of these within my activity to calculate a normal based on a user tapping the AR scene.

Either getters should be provided, or these fields should be made protected so that users can extend ArJcptRenderer and add their own getters if required.

I'm happy to implement this if you advise on the preferred approach.

Just imported the project. I am having this issue: "No service of type Factory available in ProjectScopeServices".

Why the 3d AR model (astronaut) is shaking so much?

My understanding is that i just have to add the compile() line to the build.gradle, and not manually download any files. However, that doesn't install the latest version (with the proper encapsulation for the renderer). Is it updated?