Introduction to 3D Game Programming with DirectX 9.0c Shader App...

Introduction to 3D Game Programming with DirectX 9.0c—A Shader

Approach

Frank D. Luna

Wordware Publishing, Inc.

Library of Congress Cataloging-in-Publication Data

Luna, Frank D.

Introduction to 3D game programming with DirectX 9.0c : a shader approach

/ by Frank D. Luna.

p. cm.

794.8'1526--dc22 2006006448

© 2006, Wordware Publishing, Inc.

All Rights Reserved

2320 Los Rios Boulevard

Plano, Texas 75074

No part of this book may be reproduced in any form or by any means without permission in writing from Wordware Publishing, Inc.

Printed in the United States of America

ISBN-13: 978-1-59822-016-2

ISBN-10: 1-59822-016-0

10 9 8 7 6 5 4 3 2 1

it, including but not limited to implied warranties for the book's quality, performance, merchantability, or fitness for any particular purpose. Neither Wordware

Publishing, Inc. nor its dealers or distributors shall be liable to the purchaser or any other person or entity with respect to any liability, loss, or damage caused or

alleged to have been caused directly or indirectly by this book.

All inquiries for volume purchases of this book should be addressed to Wordware Publishing, Inc., at the above address. Telephone inquiries may be made by

calling:

(972) 423-0090

To my parents, Frank and Kathryn

Acknowledgments

I would like to thank Rod Lopez, Jim Leiterman, Hanley Leung, Rick Falck, Tybon Wu, Tuomas Sandroos, and Eric Sandegren for putting in the time to review this

book for both accuracy and improvements. I also want to thank Dale E. La Force, Adam Hault, Gary Simmons, James Lambers, and William Chin for their

Introduction

book is divided into three main parts. Part I explains the mathematical tools that will be used throughout this book. Part II shows how to implement elementary 3D

techniques, such as defining 3D geometry, lighting, texturing, alpha blending, and stenciling, using shaders and the HLSL. Part III is largely about applying Direct3D

to implement a variety of interesting techniques and special effects, such as working with meshes, character animation, terrain rendering, picking, particle systems,

environment mapping, normal mapping, and rendering to textures.

For the beginner, this book is best read front to back. The chapters have been organized so that the difficulty increases progressively with each chapter. In this way,

there are no sudden jumps in complexity that leave the reader lost. In general, for a particular chapter, we will use the techniques and concepts previously

developed. Therefore, it is important that you have mastered the material of a chapter before continuing. Readers who are experienced Direct3D users can pick the

chapters of interest.

Finally, you may be wondering what kinds of games you can develop after reading this book. The answer to that question is best obtained by skimming through the

book and seeing the types of applications that are developed. From that you should be able to visualize the types of games that can be developed based on the

vertices and pixels in vertex and pixel shaders. This significant revision in approach reflects the fact that the fixed pipeline will not exist in DirectX 10.

ideas on his or her own. In many cases, the exercises are not of the "plug and chug" type, but require the reader to determine how to apply the chapter's topics to

the particular assignment. Readers are encouraged to complete chapter exercises before moving on to the next chapter.