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Learning Three.js: The JavaScript 3D Library for WebGL - Second Edition

By : Jos Dirksen

4.4 (14)

Learning Three.js: The JavaScript 3D Library for WebGL - Second Edition

4.4 (14)

By: Jos Dirksen

Overview of this book

If you know JavaScript and want to start creating 3D graphics that run in any browser, this book is a great choice for you. You don't need to know anything about math or WebGL; all that you need is general knowledge of JavaScript and HTML.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

1. Creating Your First 3D Scene with Three.js

1. Creating Your First 3D Scene with Three.js

Requirements to use Three.js

Getting the source code

Creating the HTML skeleton

Rendering and viewing a 3D object

Adding materials, lights, and shadows

Expanding your first scene with animations

Using dat.GUI to make experimenting easier

Automatically resize the output when browser size changes

Summary

2. Basic Components That Make Up a Three.js Scene

2. Basic Components That Make Up a Three.js Scene

Creating a scene

Geometries and meshes

Different cameras for different uses

Summary

3. Working with the Different Light Sources Available in Three.js

3. Working with the Different Light Sources Available in Three.js

Different kinds of lighting provided by Three.js

Basic lights

Special lights

Summary

4. Working with Three.js Materials

4. Working with Three.js Materials

Understanding common material properties

Starting with a simple mesh

Advanced materials

Materials you can use for a line geometry

Summary

5. Learning to Work with Geometries

5. Learning to Work with Geometries

The basic geometries provided by Three.js

Summary

6. Advanced Geometries and Binary Operations

6. Advanced Geometries and Binary Operations

THREE.ConvexGeometry

THREE.LatheGeometry

Creating 3D text

Using binary operations to combine meshes

Summary

7. Particles, Sprites, and the Point Cloud

7. Particles, Sprites, and the Point Cloud

Understanding particles

Particles, THREE.PointCloud, and THREE.PointCloudMaterial

Styling particles with the HTML5 canvas

Using textures to style particles

Working with sprite maps

Creating THREE.PointCloud from an advanced geometry

Summary

8. Creating and Loading Advanced Meshes and Geometries

8. Creating and Loading Advanced Meshes and Geometries

Geometry grouping and merging

Summary

9. Animations and Moving the Camera

9. Animations and Moving the Camera

Basic animations

Working with the camera

Morphing and skeletal animation

Creating animations using external models

Summary

10. Loading and Working with Textures

10. Loading and Working with Textures

Using textures in materials

Advanced usage of textures

Summary

11. Custom Shaders and Render Postprocessing

11. Custom Shaders and Render Postprocessing

Setting up Three.js for postprocessing

Postprocessing passes

Creating custom postprocessing shaders

Summary

12. Adding Physics and Sounds to Your Scene

12. Adding Physics and Sounds to Your Scene

Creating a basic Three.js scene

Material properties

Basic supported shapes

Using constraints to limit movement of objects

Summary

Index

Index

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The basic geometries provided by Three.js

In Three.js, we have a couple of geometries that result in a two-dimensional mesh and a larger number of geometries that create a three-dimensional mesh. In this section, we'll first look at the 2D geometries: THREE.CircleGeometry, THREE.RingGeometry, THREE.PlaneGeometry, and THREE.ShapeGeometry. After that, we'll explore all the basic 3D geometries that are available.

Two-dimensional geometries

Two-dimensional objects look like flat objects and, as the name implies, only have two dimensions. The first two-dimensional geometry on the list is THREE.PlaneGeometry.

THREE.PlaneGeometry

A PlaneGeometry object can be used to create a very simple two-dimensional rectangle. For an example of this geometry, look at the 01-basic-2d-geometries-plane.html example in the sources for this chapter. A rectangle created using PlaneGeometry is shown in the following screenshot:

THREE.PlaneGeometry

Creating this geometry is very simple, as follows:

new THREE.PlaneGeometry(width...

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