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: Rotations in World Space vs Camera Space

Let's cover an example showing the different rotations in different spaces:

  1. Open ch04_02_model-view-rotation.html in your browser:
  1. As we did in the previous example, we will see the following:
    • A cone at the origin of the world
    • The camera is located at [0, 2, 50] in world coordinates
    • Three sliders that allow us to rotate either the world or the camera
    • A matrix where we can see the result of different rotations
  2. Let's see what happens to the axis after we apply a rotation. With the World coordinates selected, rotate the world 90 degrees around the x-axis. What does the Model-View matrix look like?
  3. Let's see where the axes end up after a 90 degree rotation around the x-axis:
    • By looking at the first column, we can see that the x-axis has not changed. It's still [1, 0, 0]. This makes sense since we...