Book Image

Game Development with Three.js

By : Isaac Sukin
Book Image

Game Development with Three.js

By: Isaac Sukin

Overview of this book

The advent of WebGL and its inclusion in many browsers enabled JavaScript programs running in a web browser to access the GPU without a plugin or extension. Three.js is a next generation high-level library that makes it possible to author complex 3D computer animations that display in the browser using nothing more than a simple text editor. The development of these new tools has opened up the world of real-time 3D computer animations to a far broader spectrum of developers. Starting with how to build 3D games on the web using the Three.js graphics library, you will learn how to build 3D worlds with meshes, lighting, user interaction, physics, and more. Along the way, you'll learn how to build great online games through fun examples. Use this book as a guide to embrace the next generation of game development! Moving on from the basics, you will learn how to use Three.js to build game worlds using its core components, including renderers, geometries, materials, lighting, cameras, and scenes. Following on from this, you will learn how to work with mouse and keyboard interactions, incorporate game physics, and import custom models and animations. You will also learn how to include effects like particles, sounds, and post-processing. You will start by building a 3D world, and then create a first person shooter game using it. You will then be shown how to imbue this FPS game with a “capture the flag” gameplay objective. With Game Development with Three.js, you will be able to build 3D games on the Web using the Three.js graphics library.
Table of Contents (12 chapters)

Let's code!

Because Three.js runs in web browsers, it can run on—and be developed on—many different platforms. In fact, we're going to build our first Three.js project directly in a browser!

Open up You should see HTML and JavaScript code overlaid on top of a spinning sphere-like shape, as shown in the following screenshot:

The online Three.js editor

This is the Hello, World program of Three.js—the minimum code required to get a spinning shape rendering in the browser. The preview will automatically update when you change any code, so go ahead and play with it and see what happens. For example, try changing THREE.MeshBasicMaterial to THREE.MeshNormalMaterial. What happens if you change IcosahedronGeometry to TorusKnotGeometry? Try fiddling with some numbers. Can you make the shape rotate faster or slower?