Open
ch5_Interpolation.html
using your HTML5 Internet browser.Select Linear interpolation if it is not already selected.
Move the start and end points using the slider provided.
Change the number of interpolation steps. What happens to the animation when you decrease the number of steps?
The code for the linear interpolation has been implemented in the
doLinearInterpolation
function.Now select Polynomial interpolation. In this example we have implemented Lagrange's interpolation method. You can see the source code in the
doLagrangeInterpolation
function.After selecting the polynomial interpolation, you will see that three new control points (flags) appear on screen. Using the sliders provided on the webpage, you can change the location of these control points. You can also change the number of interpolation steps.
You also may have noticed that whenever the ball approaches one of the flags (with the exception of the start and end points) the flag changes color...
WebGL Beginner's Guide
WebGL Beginner's Guide
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 (18 chapters)
WebGL Beginner's Guide
Credits
About the Authors
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface
Free Chapter
Getting Started with WebGL
Rendering Geometry
Lights!
Camera
Action
Colors, Depth Testing, and Alpha Blending
Textures
Picking
Putting It All Together
Advanced Techniques
Index
Customer Reviews