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  • Learn ARCore - Fundamentals of Google ARCore
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Learn ARCore - Fundamentals of Google ARCore

Learn ARCore - Fundamentals of Google ARCore

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Learn ARCore - Fundamentals of Google ARCore

Learn ARCore - Fundamentals of Google ARCore

3 (3)

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 (13 chapters)
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Lighting and shadows


Lighting is an essential element in our scenes, but as we have already seen, it takes some work to get it right. In this section, we will revisit lighting and also tackle adding shadows. Adding shadows to our objects will make them look like they are really there. We will start with adding shadows, so open up Unity and follow along:

  1. Create a new shader called UnlitShadowReceiver in the Assets/ARCoreDesign/Materials/Shaders folder.
  2. Double-click on the new shader to open it in your code editor.
  3. Select all the autogenerated code and delete it. Then, add the following code:
Shader "ARCoreDesign/UnlitShadowReceiver" 
{
 Properties
 { 
  _Color("Main Color", Color) = (1,1,1,1) 
  _MainTex("Base (RGB)", 2D) = "white" {} 
  _Cutoff("Cutout", Range(0,1)) = 0.5 
 }
 SubShader
 { 
  Pass
  { 
   Alphatest Greater[_Cutoff] SetTexture[_MainTex] 
  } 

  Pass
  { 
   Blend DstColor Zero Tags{ "LightMode" = "ForwardBase" }

   CGPROGRAM
   #pragma vertex vert
   #pragma fragment frag
...
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