Book Image

Learn ARCore - Fundamentals of Google ARCore

Book Image

Learn ARCore - Fundamentals of Google ARCore

Overview of this book

Are you a mobile developer or web developer who wants to create immersive and cool Augmented Reality apps with the latest Google ARCore platform? If so, this book will help you jump right into developing with ARCore and will help you create a step by step AR app easily. This book will teach you how to implement the core features of ARCore starting from the fundamentals of 3D rendering to more advanced concepts such as lighting, shaders, Machine Learning, and others. We’ll begin with the basics of building a project on three platforms: web, Android, and Unity. Next, we’ll go through the ARCore concepts of motion tracking, environmental understanding, and light estimation. For each core concept, you’ll work on a practical project to use and extend the ARCore feature, from learning the basics of 3D rendering and lighting to exploring more advanced concepts. You’ll write custom shaders to light virtual objects in AR, then build a neural network to recognize the environment and explore even grander applications by using ARCore in mixed reality. At the end of the book, you’ll see how to implement motion tracking and environment learning, create animations and sounds, generate virtual characters, and simulate them on your screen.
Table of Contents (17 chapters)
Title Page
Packt Upsell
Contributors
Preface
Index

Exploring the code


Now, let's take a closer look at the main pieces of the app by digging into the source code. Follow the given steps to open the app's code in Android Studio:

  1. From the Project window, find and double-click on the HelloArActivity, as shown:

HelloArActivity shown in the Project window

  1. After the source is loaded, scroll through the code to the following section:
private void showLoadingMessage() {
 runOnUiThread(new Runnable() {
  @Override
  public void run() {
   mLoadingMessageSnackbar = Snackbar.make(
    HelloArActivity.this.findViewById(android.R.id.content),
    "Searching for surfaces...",
    Snackbar.LENGTH_INDEFINITE);
   mLoadingMessageSnackbar.getView().setBackgroundColor(0xbf323232);
   mLoadingMessageSnackbar.show();
  }
 });
}
  1. Note the highlighted text—"Searching for surfaces..". Select this text and change it to "Searching for ARCore surfaces..". The showLoadingMessage function is a helper for displaying the loading message. Internally, this function calls runOnUIThread...