Table of Contents

Preface vii

What You Should Know Before Reading This Manual viii

Style Conventions ix

Acknowledgments x

CHAPTER 1. Introduction to OpenGL 1

OpenGL Fundamentals 2

OpenGL Primitives and Commands 2

OpenGL as a Procedural Language 2

The OpenGL Execution Model 3

Basic OpenGL Operation 3

CHAPTER 2. Overview of Commands and Routines 7

The OpenGL Processing Pipeline 8

Vertices 10

ARB Imaging Subset 16

Fragments 17

Additional OpenGL Commands 20

Using Evaluators 20

Performing Selection and Feedback 20

Using Display Lists 21

Managing Modes and Execution 22

Obtaining State Information 22

OpenGL Utility Library 23

Manipulating Images for Use in Texturing 23

Transforming Coordinates 23

Polygon Tessellation 24

Rendering Spheres, Cylinders, and Disks 24

NURBS Curves and Surfaces 25

Handling Errors 26

OpenGL Extension to the X Window System 26

Initialization 26

Controlling Rendering 27

CHAPTER 3. Summary of Commands and Routines 31

Notation 32

OpenGL Commands 33

Primitives 33

Vertex Arrays 34

Coordinate Transformation 35

Coloring and Lighting 35

Clipping 36

Rasterization 36

Pixel Operations 37

Textures 37

Fog 40

Frame Buffer Operations 40

Evaluators 41

Selection and Feedback 42

Display Lists 42

Modes and Execution 43

State Queries 43

ARB Extensions 44

Imaging Subset 44

GLU Routines 46

Texture Images 46

Coordinate Transformation 46

Polygon Tessellation 47

Quadric Objects 48

NURBS Curves and Surfaces 48

State Queries 49

GLX Routines 49

Initialization 49

Controlling Rendering 50

CHAPTER 4. Defined Constants and Associated Commands 53

CHAPTER 5. OpenGL Reference Pages 93

CHAPTER 6. GLU Reference Pages 585

CHAPTER 7. GLX Reference Pages 689

Author Bios

Dave Shreiner, a leading OpenGL consultant, was a longtime member of the core OpenGL team at SGI. He authored the first commercial OpenGL training course, and has been developing computer graphics applications for more than two decades.

Backcover Copy

The Official Reference Document to OpenGL, Version 1.4

OpenGL is a powerful software interface used to produce high-quality computer-generated images and interactive graphics applications by rendering 2D and 3D geometric objects, bitmaps, and color images.

Officially sanctioned by the OpenGL Architecture Review Board (ARB), The OpenGL® Reference Manual, Fourth Edition, is the comprehensive and definitive documentation of all core OpenGL functions. This fourth edition has been completely revised and updated for OpenGL Versions 1.3 and 1.4.

It features coverage of cube-mapped textures, multisampling, depth textures and shadowing, multitexturing, and register combiners. In addition, this book documents all OpenGL Utility Library functions (GLU 1.3) and the OpenGL extension to the X Window System (GLX 1.3).

A comprehensive reference section documents each set of related OpenGL commands. Each reference page contains:

• A description of the command's parameters
• The command's effect on rendering and how OpenGL's state is modified
• Examples
• References to related functions
• Errors generated by each function

This book also includes a conceptual overview of OpenGL, a summary of commands and routines, a chapter on defined constants and associated commands, and descriptions of the multitexturing and imaging subset ARB extensions.

The Library enables programmers to gain a practical understanding of OpenGL and shows them how to unlock its full potential. Originally developed by SGI, the Library continues to evolve under the auspices of the Architecture Review Board (ARB), an industry consortium responsible for guiding the evolution of OpenGL and related technologies. The OpenGL ARB is composed of leaders in the computer graphics industry: 3Dlabs, Apple, ATI, Dell, Evans & Sutherland, Hewlett-Packard, IBM, Intel, Matrox, NVIDIA, SGI, and Sun Microsystems.

This product is a member of the following series. Click on the series name to see the full list of products in the series.

• OpenGL

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