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WebGL Beginner's Guide

You're reading from   WebGL Beginner's Guide If you're a JavaScript developer who wants to take the plunge into 3D web development, this is the perfect primer. From a basic understanding of WebGL structure to creating realistic 3D scenes, everything you need is here.

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Product type Paperback
Published in Jun 2012
Publisher Packt
ISBN-13 9781849691727
Length 376 pages
Edition 1st Edition
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Table of Contents (18) Chapters Close

WebGL Beginner's Guide
Credits
About the Authors
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface
1. Getting Started with WebGL FREE CHAPTER 2. Rendering Geometry 3. Lights! 4. Camera 5. Action 6. Colors, Depth Testing, and Alpha Blending 7. Textures 8. Picking 9. Putting It All Together 10. Advanced Techniques Index

Time for action – customizing the application


  1. Open the file ch9_Car_Showroom.html using your favorite code editor.

  2. We will assign a different home for the camera when we load the Ford Mustang. To do so, please check the cameraHome, cameraAzimuth, and cameraElevation global variables. We set up the camera home position by using this variable inside the configure function like this:

    camera.goHome(cameraHome);
    camera.setAzimuth(cameraAzimuth);
    camera.setElevation(cameraElevation);

    Let's use this code to configure the default pose for the camera when we load the Ford Mustang. Go to the loadMustang function and append these lines:

    cameraHome = [0,0,10];
    cameraAzimuth = -25;
    cameraElevation = -15;
    camera.goHome(cameraHome);
    camera.setAzimuth(cameraAzimuth);
    camera.setElevation(cameraElevation);
  3. Now save your work and load the page in your web browser. Check that the camera appears in the indicated position when you load the Ford Mustang.

  4. We can also set up the lighting scheme on a car-per-car basis...

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