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)

Use of Color in the Scene

It’s time to discuss transparency and alpha blending. As mentioned before, the alpha channel can carry information about the opacity of the object color. However, as we saw in the cube example, it’s not possible to obtain a translucent object unless alpha blending is activated. Things get a bit more complicated when we have several objects in the scene. To manage these difficulties, we need to learn what to do in order to have a consistent scene with translucent and opaque objects.

Transparency

The first approach to render transparent objects is to use polygon stippling. This technique consists of discarding some fragments so that you can see through the object. Think of this as punching...