Book Image

Getting Started with React VR

By : John Gwinner
Book Image

Getting Started with React VR

By: John Gwinner

Overview of this book

This book takes you on a journey to create intuitive and interactive Virtual Reality experiences by creating your first VR application using React VR 2.0.0. It starts by getting you up to speed with Virtual Reality (VR) and React VR components. It teaches you what Virtual Reality (VR) really is, why it works, how to describe 3D objects, the installation of Node.js (version 9.2.0) and WebVR browser. You will learn 3D polygon modeling, texturing, animating virtual objects and adding sound to your VR world. You will also discover ways to extend React VR with new features and native Three.js. You will learn how to include existing high-performance web code into your VR app. This book will also take you through upgrading and publishing your app. By the end of this book, you'll have a deep knowledge of Virtual Reality and a full-fledged working VR app to add to your profile!
Table of Contents (20 chapters)
Title Page
About the Author
About the Reviewers
Customer Feedback

Polygons and why we like them

I think the confusion with "Oh no, not polygons" is that polygons, unless they are elevated to an art form, as in the preceding music video, can be a really crude way of creating something. For example, this does not look much like an apple:

Many CAD systems do have other representations such as Non-Uniform Rational B-Spline (NURBS), which is a type of curve, or primitives that essentially have no polygons but are what they represent. A sphere, for example, may be arbitrarily smooth with no facets or flat areas.

The world would be boring if everything was just cubes and spheres. Unless it was Minecraft, then it would be pretty cool. Aside from Minecraft, many CAD systems build up more interesting objects via Constructive Solid Geometry (CSG) to drill out and add the basic primitives to other primitives to make more complex objects. 

Why doesn't VR use some of these techniques?

Generally speaking, they are slow. Something has to convert the precise, accurate mathematical...