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

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

By : Jos Dirksen
4.4 (14)
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Learning Three.js: The JavaScript 3D Library for WebGL - Second Edition

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.
Table of Contents (14 chapters)
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8
8. Creating and Loading Advanced Meshes and Geometries
13
Index

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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