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: Updating Uniforms in Real Time

Let's cover an example of how we'd update shader uniforms interactively:

  1. Open the ch03_01_goraud_lambert.html file in your browser:
  1. Notice that in this example, the controls widget is at the top right of the page. If you're curious about how it works, you can check the initControls function inside of the example code.
The Settings Widget

The settings widget was created using DatGui, an open source library. While we won't cover the intuitive DatGui API, it may be useful to read the documentation and the code in the provided examples to see how it works. For more information, you can check out https://github.com/dataarts/dat.gui.
  1. Translate X, Y, Z: These control the direction of the light. By changing these sliders, you will modify the uLightDirection uniform:
  1. Sphere Color: This changes the uMaterialDiffuse...