OpenGL ES 2.0 is the industry’s leading software interface and graphics library for rendering sophisticated 3D graphics on handheld and embedded devices. With OpenGL ES 2.0, the full programmability of shaders is now available on small and portable devices—including cell phones, PDAs, consoles, appliances, and vehicles. However, OpenGL ES differs significantly from OpenGL. Graphics programmers and mobile developers have had very little information about it—until now. In the OpenGL® ES 2.0 Programming Guide, three leading authorities on the Open GL ES 2.0 interface—including the specification’s editor—provide start-to-finish guidance for maximizing the interface’s value in a wide range of high-performance applications. The authors cover the entire API, including Khronos-ratified extensions. Using detailed C-based code examples, they demonstrate how to set up and program every aspect of the graphics pipeline. You’ll move from introductory techniques all the way to advanced per-pixel lighting, particle systems, and performance optimization.  Coverage includes: Shaders in depth: creating shader objects, compiling shaders, checking for compile errors, attaching shader objects to program objects, and linking final program objects The OpenGL ES Shading Language: variables, types, constructors, structures, arrays, attributes, uniforms, varyings, precision qualifiers, and invariance Inputting geometry into the graphics pipeline, and assembling geometry into primitives Vertex shaders, their special variables, and their use in per-vertex lighting, skinning, and other applications Using fragment shaders—including examples of multitexturing, fog, alpha test, and user clip planes Fragment operations: scissor test, stencil test, depth test, multisampling, blending, and dithering Advanced rendering: per-pixel lighting with normal maps, environment mapping, particle systems, image post-processing, and projective texturing Real-world programming challenges: platform diversity, C++ portability, OpenKODE, and platform-specific shader binaries

Table of Contents:
List of Figures                  xiii List of Examples                xv List of Tables                    xix Foreword                           xxi Preface                            xxiii Acknowledgments          xxix About the Authors          xxxi Chapter 1. Introduction to OpenGL ES 2.0                       1 What Is OpenGL ES?                     1 OpenGL ES 2.0                              3 Vertex Shader                                 4 Primitive Assembly                       6 Rasterization                                 7 Fragment Shader                             7 Per-Fragment Operations                9 OpenGL ES 2.0 and OpenGL ES 1.x Backward Compatibility           11 EGL                       12 Programming with OpenGL ES 2.0                    13 Further Reading                          18 Chapter 2. Hello Triangle: An OpenGL ES 2.0 Example                    19 Code Framework                      20 Where to Download the Examples                    20 Hello Triangle Example                       21 Building and Running the Examples                       25 Using the OpenGL ES 2.0 Framework                      26 Creating a Simple Vertex and Fragment Shader                    27 Compiling and Loading the Shaders                    29 Creating a Program Object and Linking the Shaders                 30 Setting the Viewport and Clearing the Color Buffer                   32 Loading the Geometry and Drawing a Primitive                   33 Displaying the Back Buffer                   33 Chapter 3. An Introduction to EGL                         35 Communicating with the Windowing System               36 Checking for Errors                   37 Initializing EGL                   37 Determining the Available Surface Configurations                 38 Querying EGLConfig Attributes                    39 Letting EGL Choose the Config                     39 Creating an On-Screen Rendering Area: The EGL Window                43 Creating an Off-Screen Rendering Area: EGL Pbuffers                  46 Creating a Rendering Context                     50 Making an EGLContext Current                        52 Putting All Our EGL Knowledge Together                       52 Synchronizing Rendering                       54 Chapter 4. Shaders and Programs                     57 Shaders and Programs                      57 Uniforms and Attributes                    67 Shader Compiler and Shader Binaries                     72 Chapter 5. OpenGL ES Shading Language                   77 OpenGL ES Shading Language Basics                     78 Variables and Variable Types                    78 Variable Constructors                   79 Vector and Matrix Components                  81 Constants                   82 Structures                     82 Arrays                    83 Operators                     84 Functions                        85 Built-In Functions                      86 Control Flow Statements                 87 Uniforms                    88 Attributes                89 Varyings                    90 Preprocessor and Directives                 92 Uniform and Varying Packing                 94 Precision Qualifiers                     96 Invariance                     97 Chapter 6. Vertex Attributes, Vertex Arrays, and Buffer Objects                101 Specifying Vertex Attribute Data                  102 Declaring Vertex Attribute Variables in a Vertex Shader               110 Vertex Buffer Objects                 115 Mapping Buffer Objects                   124 Chapter 7. Primitive Assembly and Rasterization                 127 Primitives                     127 Drawing Primitives                  131 Primitive Assembly                   136 Rasterization                 141 Chapter 8. Vertex Shaders                   147 Vertex Shader Overview                 148 Vertex Shader Examples                 159 Generating Texture Coordinates                167 Vertex Skinning             168 OpenGL ES 1.1 Vertex Pipeline as an ES 2.0 Vertex Shader            173 Chapter 9. Texturing                 181 Texturing Basics                181 Compressed Textures            201 Texture Subimage Specification               202 Copying Texture Data from the Color Buffer               204 Optional Extensions               207 Chapter 10. Fragment Shaders              215 Fixed Function Fragment Shaders              216 Fragment Shader Overview                218 Implementing Fixed Function Techniques Using Shaders            222 Chapter 11. Fragment Operations                233 Buffers                234 Fragment Tests and Operations                238 Blending                246 Dithering               249 Multisampled Antialiasing                249 Reading and Writing Pixels to the Framebuffer                  250 Chapter 12. Framebuffer Objects                   253 Why Framebuffer Objects                   253 Framebuffer and Renderbuffer Objects                 255 Creating Framebuffer and Renderbuffer Objects               258 Using Renderbuffer Objects                   259 Using Framebuffer Objects                     262 Deleting Framebuffer and Renderbuffer Objects               269 Examples                    271 Performance Tips and Tricks                 277 Chapter 13. Advanced Programming with OpenGL ES 2.0                279 Per-Fragment Lighting                279 Environment Mapping                  286 Particle System with Point Sprites               290 Image Postprocessing                  296 Projective Texturing                   300 Noise Using a 3D Texture              307 Procedural Texturing                 315 Chapter 14. State Queries                 323 OpenGL ES 2.0 Implementation String Queries              323 Querying Implementation-Dependent Limits                 324 Querying OpenGL ES State             327 Hints               330 Entity Name Queries             331 Nonprogrammable Operations Control and Queries               332 Shader and Program State Queries               333 Vertex Attribute Queries               335 Texture State Queries              336 Vertex Buffer Queries                337 Renderbuffer and Framebuffer State Queries              337 Chapter 15. OpenGL ES and EGL on Handheld Platforms              339 Handheld Platforms Overview              339 C++ Portability                341 OpenKODE                  343 Platform-Specific Shader Binaries                 350 Targeting Extensions                  351 Appendix A. GL_HALF_FLOAT_OES                    353 16-Bit Floating-Point Number                     354 Converting Float to Half-Float                   355 Appendix B. Built-In Functions                    357 Angle and Trigonometry Functions                358 Exponential Functions                     360 Common Functions                     361 Geometric Functions                      364 Matrix Functions                     366 Vector Relational Functions                 367 Texture Lookup Functions                 369 Derivative Functions                 371 Appendix C. Shading Language Grammar                 375 Appendix D. ES Framework API                     385 Framework Core Functions                   385 Transformation Functions                     390 Index                       395