Before getting started with the projects outlined in this book, you will need a few things. The first is a Mac or PC computer that meets the Unity 3D system requirements. Visit https://unity3d.com/unity/system-requirements to confirm that your computer can run the software.

This book uses the free version of the Unity 3D game engine. If you are not familiar with the engine, visit https://unity3d.com/learn/tutorials/topics/interface-essentials for an introduction on the interface and basic game objects. The engine is constantly under development for improvements and feature releases. New patches are announced monthly, and major version releases appear two to three times a year. With this ever-changing nature, readers should install the latest version of Unity and visit https://unity3d.com/unity/roadmap to review any updates to the VR toolset.

Although a computer is required to develop each project, a VR headset is still needed to fully test the environments. We designed these tutorials for the Google Cardboard (Project: Trappist-1 Solar System), Samsung Gear VR (Project: Image Gallery), and Oculus Rift (Project: Zombie Shooter, Carnival Midway). However, the concepts are universal and with minor adjustments, the projects can be adapted to other devices as well.

Each hardware platform requires a Software Development Kit (SDK) or custom Unity package to facilitate communication between Unity and the VR device. Instructions for installation can be found at the beginning of each project. It is also important to check for software compatibility with your installed version of Unity. This can be done at the download site or in the VR Device section of Unity at https://docs.unity3d.com/Manual/VRDevices.html.

You can download the example code files for this book from your account at www.packtpub.com. If you purchased this book elsewhere, you can visit www.packtpub.com/support and register to have the files emailed directly to you.

You can download the code files by following these steps:

1. Log in or register at www.packtpub.com.
2. Select the SUPPORT tab.
3. Click on Code Downloads & Errata.
4. Enter the name of the book in the Search box and follow the onscreen instructions.

Once the file is downloaded, please make sure that you unzip or extract the folder using the latest version of:

• WinRAR/7-Zip for Windows
• Zipeg/iZip/UnRarX for Mac
• 7-Zip/PeaZip for Linux

The code bundle for the book is also hosted on GitHub at https://github.com/PacktPublishing/Virtual-Reality-Blueprints</span>. We also have other code bundles from our rich catalog of books and videos available at https://github.com/PacktPublishing/. Check them out!

We also provide a PDF file that has color images of the screenshots/diagrams used in this book. You can download it here: http://www.packtpub.com/sites/default/files/downloads/VirtualRealityBlueprints_ColorImages.pdf.

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "Finally, we will keep the project organized by dragging the OrbitController's icon to the Scripts folder."

A block of code is set as follows:

public Transform orbitPivot;
public float orbitSpeed;
public float rotationSpeed;
public float planetRadius;
public float distFromStar;

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "Create a new sphere using GameObject | 3D Object | Sphere."