why ARCore Supported device Limited?

Question

what makes the ARCore supported device supports ARCore? Which Features Makes This Device Support ArCore? What is difference between ARCore Device And Other non Supported Device?

Lefthanded

Someone will give a more complete answer, but essentially the sensors for that specific device need calibrating to a high level, which is not as easy as it sounds. It relies on the manufacturer working with Google to do the work. I think there'll also be version and performance requirements, but I get the impression that any modern smartphone meets those anyway. – Guthry

@jethro Thanks for answering the question.But I am not satisfied with answer i want to know in details. thanks – Lefthanded

@SunnySommanek This article may help in understanding: medium.com/6d-ai/how-is-arcore-better-than-arkit-5223e6b3e79d – Egotist

Answer 1

What happens is not about how new the mobile is, but if this mobile had some tests and mesures when it was design and build.

• What it means, you cellphone today need some hardware like:

Accelerometer: measures acceleration, which is change in speed divided by time. Simply put, it’s the measure of change in velocity. Acceleration forces can be static/continuous—like gravity—or dynamic, such as movement or vibrations.

Gyroscope: measures and/or maintains orientation and angular velocity. When you change the rotation of your phone while using an AR experience, the gyroscope measures that rotation and ARCore ensures that the digital assets respond correctly.

Phone Camera: with mobile AR, your phone camera supplies a live feed of the surrounding real world upon which AR content is overlaid. In addition to the camera itself, ARCore-capable phones like the Google Pixel rely on complementary technologies like machine learning, complex image processing, and computer vision to produce high-quality images and spatial maps for mobile AR.

Magnetometer: gives smartphones a simple orientation related to the Earth's magnetic field. Because of the magnetometer, your phone always knows which direction is North, allowing it to auto-rotate digital maps depending on your physical orientation. This device is key to location-based AR apps.

GPS: a global navigation satellite system that provides geolocation and time information to a GPS receiver, like in your smartphone. For ARCore-capable smartphones, this device helps enable location-based AR apps.

Display: the display on your smartphone is important for crisp imagery and displaying 3D rendered assets. For instance, Google Pixel XL’s display specification is 5.5" AMOLED QHD (2560 x 1440) 534ppi display, which means that the phone can display 534 pixels per inch—making for rich, vivid images.

You can find this information and more on the Introduction to Augmented Reality and ARCore by Google AR & VR

Jowett

Answer 2

In order to get AR experience, ARCore-compatible device must have 4 sensors:

• Accelerometer
• Gyroscope
• Back RGB Camera
• Magnetometer (it'll be supported in the future)

If your smartphone doesn't have a gyroscope (or it has a virtual gyroscope) that measures an orientation (rotation) in space – your Android device is considered as ARCore-incompatible. Every ARCore-compatible device must fulfil 3D tracking using 6 degrees of freedom (XYZ position and XYZ rotation).

When you're developing AR apps for Google Play Store you should write a code that checks that ARCore compatibility.

How to perform runtime checks.

Check whether ARCore is supported (for AR Optional apps only).

AR Optional apps can use ArCoreApk.checkAvailability() to determine if the current device supports ARCore. On devices that do not support ARCore, AR Optional apps should disable AR related functionality and hide associated UI elements:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // Enable AR related functionality on ARCore supported devices only.
    maybeEnableArButton();
}

void maybeEnableArButton() {
    ArCoreApk.Availability availability = ArCoreApk.getInstance().checkAvailability(this);

    if (availability.isTransient()) {
        // Re-query at 5Hz while compatibility is checked in the background.
        new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                maybeEnableArButton();
            }
        }, 200);
    }
    if (availability.isSupported()) {
        mArButton.setVisibility(View.VISIBLE);
        mArButton.setEnabled(true);
        // indicator on the button.
    } else {                            // Unsupported or unknown.
        mArButton.setVisibility(View.INVISIBLE);
        mArButton.setEnabled(false);
    }
}

Obliteration

ARCore does not use the Magnetometer: github.com/google-ar/arcore-android-sdk/issues/362 – Calcareous

Yes, at the moment it doesn't. But Google promised to use it in the future. – Obliteration

There is an issue with above method. availability.isSupported() always returns true and because of that else part of code is not getting executed. And that's why I am not able to put the message for unsupported device. – Papst

Four years ago this method worked fine. Check the documentation, maybe there are some changes there. – developers.google.com/ar/reference/java/com/google/ar/core/… – Obliteration

@AndyJazz Can you please add your comment to this issue? It will be very helpful for me since I am struggling a lot with this stuff. – Papst

Hey @rocco, Unfortunately, at the moment, none of my colleagues have an Android device that does not support ARCore. I can't test this method in any way. – Obliteration

@AndyJazz I found solution for my issue. You can check it here. Hope it will help someone. – Papst

Hey @rocco, I've upvoted ) – Obliteration

Answer 3

AR core requires devices with 6 Degrees of freedom , unsupported devices usually have 3 degrees of freedom (DOF).

Coachwork