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

3D sound


3D sound is another illusion we cast at the listener in order to further trick them into believing that our virtually generated world is real. In fact, 3D sound has been used extensively for years in movies, TV, and of course, video games in order to trick the listener into a more immersive experience. In a movie, for instance, the listener is stationary, so 3D sound can be mimicked by setting up multiple speakers. However, in an AR or VR mobile app, the sound needs to come from a single (mono) or double (stereo, headphones) source. Fortunately, numerous smart people figured out how our human ears hear using a technique called binaural sound to map out sounds in 3D. The next diagram goes into a little more detail on how binaural audio works:

3D sound visualized

Since then, we have figured out not only how to record binaural audio, but also how to play it back, thus giving us the ability to play sounds that fool the brain into thinking that their source is different from reality....