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K.2. DEPRECATION MODEL 646 • Ability to mix-and-match separately compiled shader objects defining different shader stages (GL_ARB_separate_shader_objects). • Clarified restrictions on the precision requirements for shaders in the OpenGL Shading Language Specification (GL_ARB_shader_precision). • OpenGL Shading Language support for vertex shader inputs with 64-bit floating-point components, and OpenGL API support for specifying the values of those inputs (GL_ARB_vertex_attrib_64bit). • Expose multiple viewports for use with geometry shader outputs and multiple framebuffer attachments, and floating-point viewport bounds (GL_ARB_- viewport_array). K.2 Deprecation Model No new features are deprecated by OpenGL 4.1. Features deprecated by OpenGL 4.0 remain deprecated, but have not yet been removed. K.3 Changed Tokens New token names are introduced to be used in place of old, less general names. However, the old token names continue to be supported, for backwards compatibility with code written for previous versions of OpenGL. The new names, and the old names they replace, are shown in table K.1. New Token Name ACTIVE_PROGRAM Old Token Name CURRENT_PROGRAM Table K.1: New token names and the old names they replace. K.4 Change Log K.5 Credits and Acknowledgements OpenGL 4.1 is the result of the contributions of many people and companies. Members of the Khronos OpenGL ARB Working Group during the development of OpenGL 4.1, including the company that they represented at the time of their OpenGL 4.2 (Compatibility Profile) - August 22, 2011
K.5. CREDITS AND ACKNOWLEDGEMENTS 647 contributions, follow. Some major contributions made by individuals are listed together with their name, including specific functionality developed in the form of new ARB extensions together with OpenGL 4.1. In addition, many people participated in developing earlier vendor and EXT extensions on which the OpenGL 4.1 functionality is based in part; those individuals are listed in the respective extension specifications in the OpenGL Extension Registry. Acorn Pooley, NVIDIA Ahmet Oguz Akyuz, AMD Alexis Mather, AMD Andrew Lewycky, AMD Anton Staaf, Google Aske Simon Christensen, ARM Avi Shapira, Graphic Remedy Barthold Lichtenbelt, NVIDIA (Chair, Khronos OpenGL ARB Working Group) Benji Bowman, Imagination Technologies Benjamin Lipchak, Apple (GL_ARB_get_program_binary) Bill Licea-Kane, AMD (Chair, ARB OpenGL Shading Language TSG) Brian Paul, VMWare Bruce Merry, ARM (Detailed specification review) Chris Dodd, NVIDIA Chris Marrin, Apple Daniel Koch, TransGaming David Garcia, AMD Eric Werness, NVIDIA Gavriel State, TransGaming Georg Kolling Graham Sellers, AMD (GL_ARB_shader_stencil_export, GL_ARB_- vertex_attrib_64bit, GL_ARB_viewport_array) Gregory Roth, NVIDIA (GL_ARB_get_program_binary, GL_ARB_- separate_shader_objects) Ian Romanick, Intel Ian Stewart, NVIDIA Jaakko Konttinen, AMD (GL_ARB_debug_output) Jacob Ström, Ericsson AB James Jones, NVIDIA James Riordon, khronos.org Jason Green, TransGaming Jeff Bolz, NVIDIA (GL_ARB_ES2_compatibility) Jeff Daniels OpenGL 4.2 (Compatibility Profile) - August 22, 2011
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The OpenGL R○ Graphics System: A
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Contents 1 Introduction 1 1.1 Forma
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CONTENTS iii 2.15 Tessellation . .
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CONTENTS v 3.12 Fog . . . . . . . .
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CONTENTS vii A Invariance 579 A.1 R
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CONTENTS ix L Version 4.2 649 L.1 N
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CONTENTS xi M.3.70 BPTC texture com
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LIST OF FIGURES xiii 3.11 Example o
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LIST OF TABLES xv 3.10 UNSIGNED_SHO
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LIST OF TABLES xvii 6.29 Pixel Oper
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Chapter 1 Introduction This documen
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1.5. OUR VIEW 3 available to the us
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Chapter 2 OpenGL Operation 2.1 Open
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2.1. OPENGL FUNDAMENTALS 7 section
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2.1. OPENGL FUNDAMENTALS 9 must not
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2.1. OPENGL FUNDAMENTALS 11 2.1.2 F
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2.3. GL COMMAND SYNTAX 13 describe
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2.3. GL COMMAND SYNTAX 15 indicates
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2.4. BASIC GL OPERATION 17 Display
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2.6. BEGIN/END PARADIGM 19 Table 2.
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2.6. BEGIN/END PARADIGM 21 Vertex C
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2.6. BEGIN/END PARADIGM 23 drawn us
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2.6. BEGIN/END PARADIGM 25 2 4 6 2
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2.6. BEGIN/END PARADIGM 27 Figure 2
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2.6. BEGIN/END PARADIGM 29 Primitiv
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2.7. VERTEX SPECIFICATION 31 to cha
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2.7. VERTEX SPECIFICATION 33 This c
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2.7. VERTEX SPECIFICATION 35 void C
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2.7. VERTEX SPECIFICATION 37 • si
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2.8. VERTEX ARRAYS 39 void VertexAt
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2.8. VERTEX ARRAYS 41 The index par
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2.8. VERTEX ARRAYS 43 void ArrayEle
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2.8. VERTEX ARRAYS 45 and Primitive
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2.8. VERTEX ARRAYS 47 not modified
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2.8. VERTEX ARRAYS 49 if (mode is i
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2.8. VERTEX ARRAYS 51 The command v
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2.8. VERTEX ARRAYS 53 if (no elemen
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2.8. VERTEX ARRAYS 55 format e t e
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2.9. BUFFER OBJECTS 57 Target name
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2.9. BUFFER OBJECTS 59 in the array
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2.9. BUFFER OBJECTS 61 If the GL is
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2.9. BUFFER OBJECTS 63 Name Value B
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2.9. BUFFER OBJECTS 65 Unmapping Bu
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2.9. BUFFER OBJECTS 67 binding corr
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2.11. RECTANGLES 69 void GenVertexA
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2.12. FIXED-FUNCTION VERTEX TRANSFO
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2.13. FIXED-FUNCTION VERTEX LIGHTIN
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2.14. VERTEX SHADERS 93 shader, its
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2.14. VERTEX SHADERS 95 If shader i
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2.14. VERTEX SHADERS 97 • One or
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2.14. VERTEX SHADERS 99 subsequent
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2.14. VERTEX SHADERS 101 Program pi
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2.14. VERTEX SHADERS 103 such a nam
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2.14. VERTEX SHADERS 105 • the in
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2.14. VERTEX SHADERS 107 LINK_STATU
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2.14. VERTEX SHADERS 109 Data type
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2.14. VERTEX SHADERS 111 This comma
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2.14. VERTEX SHADERS 113 the unifor
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2.14. VERTEX SHADERS 115 program is
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2.14. VERTEX SHADERS 117 control, t
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2.14. VERTEX SHADERS 119 active uni
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2.14. VERTEX SHADERS 121 Type Name
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2.14. VERTEX SHADERS 123 OpenGL Sha
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2.14. VERTEX SHADERS 125 For GetAct
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2.14. VERTEX SHADERS 127 The Unifor
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2.14. VERTEX SHADERS 129 void Progr
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2.14. VERTEX SHADERS 131 consecutiv
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2.14. VERTEX SHADERS 133 Uniform Bu
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2.14. VERTEX SHADERS 135 The number
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2.14. VERTEX SHADERS 137 subroutine
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2.14. VERTEX SHADERS 139 gram comma
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2.14. VERTEX SHADERS 141 recorded a
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2.14. VERTEX SHADERS 143 void GetTr
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2.14. VERTEX SHADERS 145 • If the
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2.14. VERTEX SHADERS 147 • the te
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2.14. VERTEX SHADERS 149 • The sa
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2.14. VERTEX SHADERS 151 The built-
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2.14. VERTEX SHADERS 153 results wr
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2.14. VERTEX SHADERS 155 a previous
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2.14. VERTEX SHADERS 157 • TEXTUR
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2.14. VERTEX SHADERS 159 • Data w
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2.15. TESSELLATION 161 • For each
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2.15. TESSELLATION 163 invocation m
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2.15. TESSELLATION 165 • The vari
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2.15. TESSELLATION 167 output varia
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2.15. TESSELLATION 169 Figure 2.13.
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2.15. TESSELLATION 171 Triangle Tes
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2.15. TESSELLATION 173 each triangl
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2.15. TESSELLATION 179 variables th
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2.15. TESSELLATION 181 Additionally
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2.16. GEOMETRY SHADERS 183 executed
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2.16. GEOMETRY SHADERS 185 accessed
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2.16. GEOMETRY SHADERS 187 Geometry
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2.16. GEOMETRY SHADERS 189 declared
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2.16. GEOMETRY SHADERS 191 of a cub
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2.17. COORDINATE TRANSFORMATIONS 19
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2.18. ASYNCHRONOUS QUERIES 195 The
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2.18. ASYNCHRONOUS QUERIES 197 the
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2.20. TRANSFORM FEEDBACK 199 an exi
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2.20. TRANSFORM FEEDBACK 201 BindTr
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2.20. TRANSFORM FEEDBACK 203 object
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2.20. TRANSFORM FEEDBACK 205 • by
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2.22. FLATSHADING 207 When BeginQue
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2.23. PRIMITIVE CLIPPING 209 gl_Bac
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2.23. PRIMITIVE CLIPPING 211 DEPTH_
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2.24. FINAL COLOR PROCESSING 213 2.
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2.25. CURRENT RASTER POSITION 215 R
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Chapter 3 Rasterization Rasterizati
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3.1. DISCARDING PRIMITIVES BEFORE R
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3.3. ANTIALIASING 221 In some imple
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3.4. POINTS 223 rasterization, beca
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3.4. POINTS 225 void PointParameter
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3.4. POINTS 227 6.0 5.0 4.0 3.0 2.0
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3.4. POINTS 229 where size is the p
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¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦ ¦
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3.5. LINE SEGMENTS 233 Line Stipple
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3.5. LINE SEGMENTS 235 Figure 3.6.
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3.6. POLYGONS 237 3.6.1 Basic Polyg
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3.6. POLYGONS 239 For a polygon wit
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3.6. POLYGONS 241 3.6.5 Depth Offse
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3.7. PIXEL RECTANGLES 243 polygon r
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3.7. PIXEL RECTANGLES 245 3.7.2 The
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3.7. PIXEL RECTANGLES 247 Map Name
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3.7. PIXEL RECTANGLES 249 The color
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3.7. PIXEL RECTANGLES 251 In additi
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3.7. PIXEL RECTANGLES 253 Special f
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3.7. PIXEL RECTANGLES 255 Histogram
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¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡
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3.7. PIXEL RECTANGLES 259 type Para
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3.7. PIXEL RECTANGLES 261 Element S
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3.7. PIXEL RECTANGLES 263 type Para
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3.7. PIXEL RECTANGLES 265 UNSIGNED_
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3.7. PIXEL RECTANGLES 267 FLOAT_32_
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3.7. PIXEL RECTANGLES 269 Conversio
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3.7. PIXEL RECTANGLES 271 For integ
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3.7. PIXEL RECTANGLES 273 Arithmeti
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3.7. PIXEL RECTANGLES 275 The inter
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3.7. PIXEL RECTANGLES 277 Border Mo
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3.7. PIXEL RECTANGLES 279 where C[i
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3.7. PIXEL RECTANGLES 281 B i and A
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¡ ¡ ¡ ¡ ¡ ¡ 3.8. BITMAPS 283
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3.10. TEXTURING 285 not be performe
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3.10. TEXTURING 287 The active text
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3.10. TEXTURING 289 FALSE is return
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3.10. TEXTURING 291 The currently b
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3.10. TEXTURING 293 The selected gr
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3.10. TEXTURING 295 might not suppo
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3.10. TEXTURING 297 exp p = max(−
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3.10. TEXTURING 299 Sized internal
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3.10. TEXTURING 301 Sized Base D S
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3.10. TEXTURING 303 When target is
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3.10. TEXTURING 305 TEXTURE_CUBE_MA
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3.10. TEXTURING 307 1.0 5.0 4 3 t v
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3.10. TEXTURING 309 Subsequent proc
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3.10. TEXTURING 311 components is c
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3.10. TEXTURING 313 result in an IN
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3.10. TEXTURING 315 storage modes c
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3.10. TEXTURING 317 • data points
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3.10. TEXTURING 319 FORMAT, and TEX
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3.10. TEXTURING 321 3.10.7 Buffer T
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3.10. TEXTURING 323 Internal format
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3.10. TEXTURING 325 Texture paramet
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3.10. TEXTURING 327 Major Axis Dire
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3.10. TEXTURING 329 bias texobj is
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3.10. TEXTURING 331 Coordinate Wrap
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3.10. TEXTURING 333 i 0 = wrap(⌊u
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3.10. TEXTURING 335 section 3.10.17
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3.10. TEXTURING 337 otherwise p =
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3.10. TEXTURING 339 level base arra
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3.10. TEXTURING 341 Effects of Samp
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3.10. TEXTURING 343 dimensional, re
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3.10. TEXTURING 345 for (i = 0; i <
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3.10. TEXTURING 347 } width = max(1
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3.10. TEXTURING 349 Texture Base Te
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3.10. TEXTURING 351 If the value of
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3.10. TEXTURING 353 SRCn_RGB OPERAN
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3.10. TEXTURING 355 Texture Compari
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3.10. TEXTURING 357 the second text
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3.10. TEXTURING 359 to image unit u
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3.10. TEXTURING 361 invalid if: •
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3.10. TEXTURING 363 Supported image
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3.10. TEXTURING 365 Texel sizes, co
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3.12. FOG 367 This factor f is comp
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3.13. FRAGMENT SHADERS 369 fragment
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3.13. FRAGMENT SHADERS 371 • Fog
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3.13. FRAGMENT SHADERS 373 version
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3.13. FRAGMENT SHADERS 375 defined
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3.13. FRAGMENT SHADERS 377 Such bin
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Chapter 4 Per-Fragment Operations a
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4.1. PER-FRAGMENT OPERATIONS 381 Fr
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4.1. PER-FRAGMENT OPERATIONS 383 st
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4.1. PER-FRAGMENT OPERATIONS 385 pr
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4.1. PER-FRAGMENT OPERATIONS 387 St
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4.1. PER-FRAGMENT OPERATIONS 389 Be
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4.1. PER-FRAGMENT OPERATIONS 391 dr
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4.1. PER-FRAGMENT OPERATIONS 393 vo
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4.1. PER-FRAGMENT OPERATIONS 395 Th
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4.1. PER-FRAGMENT OPERATIONS 397 to
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4.2. WHOLE FRAMEBUFFER OPERATIONS 3
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¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡
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4.3. DRAWING, READING, AND COPYING
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4.4. FRAMEBUFFER OBJECTS 425 with t
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4.4. FRAMEBUFFER OBJECTS 427 If a f
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4.4. FRAMEBUFFER OBJECTS 429 BindRe
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4.4. FRAMEBUFFER OBJECTS 431 that t
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4.4. FRAMEBUFFER OBJECTS 433 or if
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4.4. FRAMEBUFFER OBJECTS 435 The re
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4.4. FRAMEBUFFER OBJECTS 437 • th
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4.4. FRAMEBUFFER OBJECTS 439 • An
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4.4. FRAMEBUFFER OBJECTS 441 of the
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4.4. FRAMEBUFFER OBJECTS 443 Effect
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4.4. FRAMEBUFFER OBJECTS 445 Conver
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Chapter 5 Special Functions This ch
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5.1. EVALUATORS 449 Integers Reals
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5.1. EVALUATORS 451 The second way
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5.2. SELECTION 453 EvalCoord2(p *
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5.3. FEEDBACK 455 of each primitive
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5.4. TIMER QUERIES 457 Type coordin
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5.5. DISPLAY LISTS 459 started or s
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5.5. DISPLAY LISTS 461 SHORT, UNSIG
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5.5. DISPLAY LISTS 463 Program and
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5.7. SYNC OBJECTS AND FENCES 465 Pr
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5.7. SYNC OBJECTS AND FENCES 467 vo
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5.8. HINTS 469 Target PERSPECTIVE_C
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6.1. QUERYING GL STATE 471 void Get
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6.1. QUERYING GL STATE 473 6.1.3 En
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6.1. QUERYING GL STATE 475 target m
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6.1. QUERYING GL STATE 477 • form
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6.1. QUERYING GL STATE 479 When the
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6.1. QUERYING GL STATE 481 format N
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6.1. QUERYING GL STATE 483 target m
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6.1. QUERYING GL STATE 485 resets a
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6.1. QUERYING GL STATE 487 names, a
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6.1. QUERYING GL STATE 489 If multi
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6.1. QUERYING GL STATE 491 To query
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6.1. QUERYING GL STATE 493 If pname
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6.1. QUERYING GL STATE 495 If pname
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6.1. QUERYING GL STATE 497 is a pro
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6.1. QUERYING GL STATE 499 command
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6.1. QUERYING GL STATE 501 void Get
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6.1. QUERYING GL STATE 503 • If p
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6.1. QUERYING GL STATE 505 An INVAL
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6.2. STATE TABLES 507 the attribute
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6.2. STATE TABLES 509 Type code Exp
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6.2. STATE TABLES 511 Get value Typ
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6.2. STATE TABLES 549 Get Command I
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6.2. STATE TABLES 565 Get Command M
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6.2. STATE TABLES 567 Get Command M
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Appendix A Invariance The OpenGL sp
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A.3. INVARIANCE RULES 581 • Sciss
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A.4. TESSELLATION INVARIANCE 583
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A.5. ATOMIC COUNTER INVARIANCE 585
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Appendix B Corollaries The followin
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589 16. ColorMaterial has no effect
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C.1. RGTC COMPRESSED TEXTURE IMAGE
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C.2. BPTC COMPRESSED TEXTURE IMAGE
Page 615 and 616: C.2. BPTC COMPRESSED TEXTURE IMAGE
Page 625 and 626: Appendix D Shared Objects and Multi
Page 627 and 628: D.2. SYNC OBJECTS AND MULTIPLE CONT
Page 629 and 630: D.3. PROPAGATING CHANGES TO OBJECTS
Page 631 and 632: E.1. CORE AND COMPATIBILITY PROFILE
Page 633 and 634: E.2. DEPRECATED AND REMOVED FEATURE
Page 635 and 636: E.2. DEPRECATED AND REMOVED FEATURE
Page 637 and 638: Appendix F Version 3.0 and Before O
Page 639 and 640: F.3. CHANGED TOKENS 619 New Token N
Page 641 and 642: F.5. CREDITS AND ACKNOWLEDGEMENTS 6
Page 643 and 644: F.5. CREDITS AND ACKNOWLEDGEMENTS 6
Page 645 and 646: G.2. DEPRECATION MODEL 625 state ha
Page 647 and 648: G.4. CREDITS AND ACKNOWLEDGEMENTS 6
Page 649 and 650: Appendix H Version 3.2 OpenGL versi
Page 651 and 652: H.4. CHANGE LOG 631 New Token Name
Page 653 and 654: H.5. CREDITS AND ACKNOWLEDGEMENTS 6
Page 655 and 656: H.5. CREDITS AND ACKNOWLEDGEMENTS 6
Page 657 and 658: I.2. DEPRECATION MODEL 637 ing fact
Page 659 and 660: I.4. CREDITS AND ACKNOWLEDGEMENTS 6
Page 661 and 662: J.1. NEW FEATURES 641 • Mechanism
Page 663 and 664: J.4. CREDITS AND ACKNOWLEDGEMENTS 6
Page 665: Appendix K Version 4.1 OpenGL versi
Page 669 and 670: Appendix L Version 4.2 OpenGL versi
Page 671 and 672: L.5. CREDITS AND ACKNOWLEDGEMENTS 6
Page 673 and 674: Appendix M Extension Registry, Head
Page 675 and 676: M.3. ARB EXTENSIONS 655 M.3.2 be am
Page 677 and 678: M.3. ARB EXTENSIONS 657 M.3.13 Text
Page 679 and 680: M.3. ARB EXTENSIONS 659 M.3.28 Open
Page 681 and 682: M.3. ARB EXTENSIONS 661 The name st
Page 683 and 684: M.3. ARB EXTENSIONS 663 equivalent
Page 685 and 686: M.3. ARB EXTENSIONS 665 M.3.59 Seam
Page 687 and 688: M.3. ARB EXTENSIONS 667 The name st
Page 689 and 690: M.3. ARB EXTENSIONS 669 M.3.84 Tess
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Page 693 and 694: M.3. ARB EXTENSIONS 673 M.3.109 Tex
Page 695 and 696: INDEX 675 552 ACTIVE UNIFORM BLOCKS
Page 697 and 698: INDEX 677 BindSampler, 290, 292 Bin
Page 699 and 700: INDEX 679 COLOR TABLE BIAS, 248, 24
Page 701 and 702: INDEX 681 CreateProgram, 96, 463 Cr
Page 703 and 704: INDEX 683 DrawArraysInstanced, 48,
Page 705 and 706: INDEX 685 Flush, 463, 464, 468, 587
Page 707 and 708: INDEX 687 GetActiveAtomicCounterBuf
Page 709 and 710: INDEX 689 GetVertexAttribdv, 498, 4
Page 711 and 712: INDEX 691 GL ARB viewport array, 64
Page 713 and 714: INDEX 693 IMAGE 2D RECT, 123 IMAGE
Page 715 and 716: INDEX 695 512-514, 516, 518-525, 53
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INDEX 697 MapGrid1, 451 MapGrid2, 4
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INDEX 699 MAX SERVER WAIT TIMEOUT,
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INDEX 701 MultTransposeMatrix, 72,
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INDEX 703 POINT SIZE GRANULARITY, 5
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INDEX 705 Q, 78, 79, 473 QUAD STRIP
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INDEX 707 rgb10 a2ui, 362 RGB12, 29
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INDEX 709 SecondaryColor3, 34 Secon
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INDEX 711 TexCoord*1*, 33 TexCoord*
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INDEX 713 526 TEXTURE CUBE MAP POS-
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INDEX 715 triangles adjacency, 184
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INDEX 717 417 UNSIGNED INT 8 8 8 8,
Page 739:
INDEX 719 VertexAttribI3i, 109 Vert
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