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Learn Three.js

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

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Product type Paperback
Published in Feb 2023
Publisher Packt
ISBN-13 9781803233871
Length 554 pages
Edition 4th Edition
Languages
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Author (1):
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Jos Dirksen Jos Dirksen
Author Profile Icon Jos Dirksen
Jos Dirksen
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Table of Contents (21) Chapters Close

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 20. Other Books You May Enjoy

3D geometries

In this section on basic 3D geometries, we’ll start with a geometry we’ve already seen a couple of times: THREE.BoxGeometry.

THREE.BoxGeometry

THREE.BoxGeometry is a very simple 3D geometry that allows you to create a box by specifying its width, height, and depth properties. We’ve added an example, box-geometry.html, where you can play around with these properties. The following screenshot shows this geometry:

Figure 5.9 – Basic 3D box geometry

Figure 5.9 – Basic 3D box geometry

As you can see in this example, by changing the width, height, and depth properties of THREE.BoxGeometry, you can control the size of the resulting mesh. These three properties are also mandatory when you create a new cube, as follows:

new THREE.BoxGeometry(10,10,10);

In the example, you can also see a couple of other properties that you can define on the cube. The following list explains all the properties:

  • width: This is the width of the cube. This...
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