You're reading from Learn Three.js Program 3D animations and visualizations for the web with JavaScript and WebGL

Product type Paperback

Published in Feb 2023

Publisher Packt

ISBN-13 9781803233871

Length 554 pages

Edition 4th Edition

Languages

JavaScript

Tools

Three.js

Concepts

Front End Web Development

Author (1):

Jos Dirksen

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Table of Contents (21) Chapters

Preface

1. Part 1: Getting Up and Running

2. Chapter 1: Creating Your First 3D Scene with Three.js FREE CHAPTER

3. Chapter 2: The Basic Components that Make up a Three.js Application

4. Chapter 3: Working with Light Sources in Three.js

5. Part 2: Working with the Three.js Core Components

6. Chapter 4: Working with Three.js Materials

7. Chapter 5: Learning to Work with Geometries

8. Chapter 6: Exploring Advanced Geometries

9. Chapter 7: Points and Sprites

10. Part 3: Particle Clouds, Loading and Animating Models

11. Chapter 8: Creating and Loading Advanced Meshes and Geometries

12. Chapter 9: Animation and Moving the Camera

13. Chapter 10: Loading and Working with Textures

14. Part 4: Post-Processing, Physics, and Sounds

15. Chapter 11: Render Postprocessing

16. Chapter 12: Adding Physics and Sounds to Your Scene

17. Chapter 13: Working with Blender and Three.js

18. Chapter 14: Three.js Together with React, TypeScript, and Web-XR

19. Index

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20. Other Books You May Enjoy

Geometries you can use for debugging

Three.js comes with two helper geometries out of the box that make it easier to see the details or just the outline of a geometry:

THREE.EdgesGeometry, which provides a geometry that only renders the edges of a geometry
THREE.WireFrameGeometry, which renders just the geometry without showing any faces

First, let’s look at THREE.EdgesGeometry.

THREE.EdgesGeometry

With THREE.EdgesGeometry, you wrap an existing geometry, which is then rendered by just showing the edges and not the individual vertices and faces. An example of this is shown in the edges-geometry.html example:

Figure 6.12 – EdgesGeometry only showing the edges, not the individual faces

In the previous screenshot, you can see that the outline of RoundedBoxGeometry is shown, where we just see the edges. Since RoundedBoxGeometry has smooth corners, those are shown when using THREE.EdgesGeometry.

To use this geometry...