Learn about ARCore and use Unity to develop mobile AR applications for Android devices.
Now that ARCore has quit the Developer Preview, it's time to start selecting AR apps for supported Android phones. Since Google's ARCore 1.0 is quite new, there is not a lot of developer information yet, but we will alleviate this problem.
Both Google's (ARCore) and Apple's (ARKit) augmented reality solutions support existing devices without the need for additional hardware. This is a huge leap forward for AR developers because millions of these devices are already in the hands of the public. Therefore, the ability to create software that can be used “now†by the public has greatly accelerated the competition in the AR mobile market.
If you are looking for help with Apple device development, please visit the next real ARKit 101 series. Otherwise, let's start using Unity to develop mobile AR applications for Android devices. But before we dive in, let's talk about the features of ARCore.
Motion tracking
Similar to ARKit, ARCore has the ability to track the position and rotation of virtual objects located in the real world. This is called motion tracking. This effect is achieved by a collection of accelerometers and gyroscopes built into so-called inertial measurement units or IMUs. In a relative sense, the IMU can determine the position and rotation of the object it is bound to.
Since the introduction of the first smartphone HTC G1 in 2008, these devices have built-in quite complex sensors. Although there were no gyroscopes at the time, there were accelerometers, GPS receivers and digital compasses, but even at the time, the Layar browser used AR very cool.
Fortunately, at this point, motion tracking is more or less a solved problem, and we as developers do not need to deal with IMU input and output. Microsoft, Apple and Google can give us a Unity interface, and it works.
Environmental understanding
Although motion tracking has been more or less solved, the environmental understanding, Google's flat search terminology, or the ability of standard RGB cameras to determine surfaces such as walls and floors is still quite new. Although it is based on a lot of research in the field of robotics to help machines understand their fields, its application in augmented reality is undeniable.
Motion tracking and environmental understanding combine to place virtual objects on the desktop and then move the device while keeping the objects exactly in the same position on the desktop, creating a fairly believable visual effect.
Light estimation
The last of this technique is the illusion that one can believe that virtual existence is called light estimation. By using ARCore, the smartphone's camera can access the light source in the area and copy it in the app. At this point, the highlights and shadows of your virtual object will look like the surrounding space.
Fortunately, the ARCore SDK plugin created by Unity handles these technologies automatically. So what we need to do is let you know how to take advantage of the power of these tools and let you start experimenting with AR through ARCore, which is the goal of our series.
What you will learn in this series of tutorials!
This series is designed to let new ARCore developers start creating AR applications. We'll start with the software installation and setup process, and then we'll build a Unity scene and set up the Android ARCore SDK framework in that scenario. We will track based on the failure of the scene controller.
Next, surface probing will be performed, which will allow us to interpret the world around us in the AR. Finally, we will discuss the topic of planar presets, which will help us to locate virtual objects in the real world.
As we move forward, you can refer to this article and the list below as a convenient reference guide. As we publish these articles, real-time links will appear in every part of the series.
Software installation and setup
Setting frame
Scene controller
Surface inspection
Plane prefabrication and inspection
Of course, in the future, we can introduce other more specific content related to ARCore. We will do our best to meet your needs after completing this series. When you are having trouble developing augmented reality apps, we will help you figure out them here!
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