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WebGL Beginner's Guide

WebGL Beginner's Guide

By : Diego Cantor, Brandon Jones
4.2 (9)
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WebGL Beginner's Guide

WebGL Beginner's Guide

4.2 (9)
By: Diego Cantor, Brandon Jones

Overview of this book

WebGL is a new web technology that brings hardware-accelerated 3D graphics to the browser without installing additional software. As WebGL is based on OpenGL and brings in a new concept of 3D graphics programming to web development, it may seem unfamiliar to even experienced Web developers.Packed with many examples, this book shows how WebGL can be easy to learn despite its unfriendly appearance. Each chapter addresses one of the important aspects of 3D graphics programming and presents different alternatives for its implementation. The topics are always associated with exercises that will allow the reader to put the concepts to the test in an immediate manner.WebGL Beginner's Guide presents a clear road map to learning WebGL. 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 WebGL topics, including drawing, color, texture, transformations, framebuffers, light, surfaces, geometry, and more. With each chapter, you will "level up"ù your 3D graphics programming skills. This book will become your trustworthy companion filled with the information required to develop cool-looking 3D web applications with WebGL and JavaScript.
Table of Contents (12 chapters)
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11
Index

The Model-View matrix


This matrix allows us to perform affine transformations in our scene. Affine is a mathematical name to describe transformations that do not change the structure of the object that undergoes such transformations. In our 3D world scene, such transformations are rotation, scaling, reflection shearing, and translation. Luckily for us, we do not need to understand how to represent such transformations with matrices. We just have to use one of the many JavaScript matrix libraries that are available online (such as glMatrix).

Note

You can find more information on how transformation matrices work in any linear algebra book. Look for affine transforms in computer graphics.

Understanding the structure of the Model-View matrix is of no value if you just want to apply transformations to the scene or to objects in the scene. For that effect, you just use a library such as glMatrix to do the transformations on your behalf. However, the structure of this matrix could be invaluable information...

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WebGL Beginner's Guide
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