Book Image

Real-Time 3D Graphics with WebGL 2 - Second Edition

By : Farhad Ghayour, Diego Cantor
5 (1)
Book Image

Real-Time 3D Graphics with WebGL 2 - Second Edition

5 (1)
By: Farhad Ghayour, Diego Cantor

Overview of this book

As highly interactive applications have become an increasingly important part of the user experience, WebGL is a unique and cutting-edge technology that brings hardware-accelerated 3D graphics to the web. Packed with 80+ examples, this book guides readers through the landscape of real-time computer graphics using WebGL 2. Each chapter covers foundational concepts in 3D graphics programming with various implementations. Topics are always associated with exercises for a hands-on approach to learning. This book presents a clear roadmap to learning real-time 3D computer graphics with WebGL 2. Each chapter starts with a summary of the learning goals for the chapter, followed by a detailed description of each topic. The book offers example-rich, up-to-date introductions to a wide range of essential 3D computer graphics topics, including rendering, colors, textures, transformations, framebuffers, lights, surfaces, blending, geometry construction, advanced techniques, and more. With each chapter, you will "level up" your 3D graphics programming skills. This book will become your trustworthy companion in developing highly interactive 3D web applications with WebGL and JavaScript.
Table of Contents (14 chapters)

Time for Action: Positional Lights in Action

Let's cover an example of positional lights in action:

  1. Open the ch03_07_positional_lighting.html file in your browser. The page will look similar to the following screenshot:
  1. The interface of this exercise is very simple. You can use the controls widget to interact with the scene. Unlike in previous exercises, the Translate X, Y, and Z sliders do not represent light direction here. Instead, they allow us to set the light source position. Go ahead and play with them.
  2. For clarity, a little sphere representing the position of the light source has been added to the scene to visualize the light source, but this is not generally required.
  3. What happens when the light source is located on the surface of the cone versus on the surface of the sphere?
  4. What happens when the light source is inside the sphere?
  1. Let's take a look at...