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)

A city scene

We've covered a lot of ground with the Three.js API. Let's tie it all together with a project that uses what we've learned about geometry and materials.

So far, we've been working with a single object in our world. If we wanted to move it around, we'd have to change its position vector. We could create a full scene this way by adding multiple objects and manually positioning them. However, for worlds with more than a few objects, this can quickly get quite tedious. There are several alternatives:

  • Rectangular layout: This method involves storing a map in some simple format such as a string or an image, where each character or pixel color represents a type of object

  • Procedural generation: This method involves the use of an algorithm to position objects semi-randomly

  • Editor: This method involves the use of an external tool to construct the scene, followed by exporting the result (for example, in JSON format), and importing it when the application executes

The rectangular format is the...