At the end of the previous section Understanding points, we briefly introduced THREE.Points. The constructor of THREE.Points takes two properties: a geometry and a material. The material is used to color and texture the particles (as we'll see later on), and the geometry defines where the individual particles are positioned. Each vertex and each point used to define the geometry is shown as an element on screen. When we create a THREE.Point object based on THREE.BoxGeometry, we get eight particles, one for each corner of the cube. Normally, though, you won't create a THREE.Points object from one of the standard Three.js geometries, but add the vertices manually to a geometry created from scratch (or use an externally loaded model) just as we did at the end of the previous section...
Learn Three.js - Third Edition
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Learn Three.js - Third Edition
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Overview of this book
WebGL makes it possible to create 3D graphics in the browser without having to use plugins such as Flash and Java. Programming WebGL, however, is difficult and complex. With Three.js, it is possible to create stunning 3D graphics in an intuitive manner using JavaScript, without having to learn WebGL. With this book, you’ll learn how to create and animate beautiful looking 3D scenes directly in your browser-utilizing the full potential of WebGL and modern browsers. It starts with the basic concepts and building blocks used in Three.js. From there on, it will expand on these subjects using extensive examples and code samples. You will learn to create, or load, from externally created models, realistic looking 3D objects using materials and textures. You’ll find out how to easily control the camera using the Three.js built-in in camera controls, which will enable you to fly or walk around the 3D scene you created. You will then use the HTML5 video and canvas elements as a material for your 3D objects and to animate your models. Finally, you will learn to use morph and skeleton-based animation, and even how to add physics, such as gravity and collision detection, to your scene. After reading this book, you’ll know everything that is required to create 3D animated graphics using Three.js.
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Current Title:
Learn Three.js - Third Edition
Table of Contents (14 chapters)
Preface
Free Chapter
Creating Your First 3D Scene with Three.js
The Basic Components that Make Up a Three.js Application
Working with Light Sources in Three.js
Working with Three.js Materials
Learning to Work with Geometries
Advanced Geometries and Binary Operations
Points and Sprites
Creating and Loading Advanced Meshes and Geometries
Animations and Moving the Camera
Loading and Working with Textures
Render Postprocessing
Adding Physics and Sounds to Your Scene
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