OpenGL 4.1 (Compatibility Profile) - July 25, 2010

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CONTENTS vi 5.4 Timer Queries . . . . . . . . . . . . . . . . . . . . . . . . . . . . 427 5.5 Display Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . 429 5.5.1 Commands Not Usable In Display Lists . . . . . . . . . . 432 5.6 Flush and Finish . . . . . . . . . . . . . . . . . . . . . . . . . . . 434 5.7 Sync Objects and Fences . . . . . . . . . . . . . . . . . . . . . . 434 5.7.1 Waiting for Sync Objects . . . . . . . . . . . . . . . . . . 436 5.7.2 Signalling . . . . . . . . . . . . . . . . . . . . . . . . . . 438 5.8 Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 438 6 State and State Requests 440 6.1 Querying GL State . . . . . . . . . . . . . . . . . . . . . . . . . 440 6.1.1 Simple Queries . . . . . . . . . . . . . . . . . . . . . . . 440 6.1.2 Data Conversions . . . . . . . . . . . . . . . . . . . . . . 441 6.1.3 Enumerated Queries . . . . . . . . . . . . . . . . . . . . 443 6.1.4 Texture Queries . . . . . . . . . . . . . . . . . . . . . . . 446 6.1.5 Sampler Queries . . . . . . . . . . . . . . . . . . . . . . 449 6.1.6 Stipple Query . . . . . . . . . . . . . . . . . . . . . . . . 449 6.1.7 Color Matrix Query . . . . . . . . . . . . . . . . . . . . . 450 6.1.8 Color Table Query . . . . . . . . . . . . . . . . . . . . . 450 6.1.9 Convolution Query . . . . . . . . . . . . . . . . . . . . . 450 6.1.10 Histogram Query . . . . . . . . . . . . . . . . . . . . . . 453 6.1.11 Minmax Query . . . . . . . . . . . . . . . . . . . . . . . 454 6.1.12 Pointer and String Queries . . . . . . . . . . . . . . . . . 454 6.1.13 Asynchronous Queries . . . . . . . . . . . . . . . . . . . 456 6.1.14 Sync Object Queries . . . . . . . . . . . . . . . . . . . . 458 6.1.15 Buffer Object Queries . . . . . . . . . . . . . . . . . . . 459 6.1.16 Vertex Array Object Queries . . . . . . . . . . . . . . . . 461 6.1.17 Transform Feedback Queries . . . . . . . . . . . . . . . . 461 6.1.18 Shader and Program Queries . . . . . . . . . . . . . . . . 461 6.1.19 Framebuffer Object Queries . . . . . . . . . . . . . . . . 469 6.1.20 Renderbuffer Object Queries . . . . . . . . . . . . . . . . 472 6.1.21 Saving and Restoring State . . . . . . . . . . . . . . . . . 473 6.2 State Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 475 A Invariance 542 A.1 Repeatability . . . . . . . . . . . . . . . . . . . . . . . . . . . . 542 A.2 Multi-pass Algorithms . . . . . . . . . . . . . . . . . . . . . . . 543 A.3 Invariance Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . 543 A.4 Tessellation Invariance . . . . . . . . . . . . . . . . . . . . . . . 545 A.5 What All This Means . . . . . . . . . . . . . . . . . . . . . . . . 547 OpenGL 4.1 (Compatibility Profile) - July 25, 2010
CONTENTS vii B Corollaries 548 C Compressed Texture Image Formats 551 C.1 RGTC Compressed Texture Image Formats . . . . . . . . . . . . 551 C.1.1 Format COMPRESSED_RED_RGTC1 . . . . . . . . . . . . 552 C.1.2 Format COMPRESSED_SIGNED_RED_RGTC1 . . . . . . . 553 C.1.3 Format COMPRESSED_RG_RGTC2 . . . . . . . . . . . . . 554 C.1.4 Format COMPRESSED_SIGNED_RG_RGTC2 . . . . . . . . 554 D Shared Objects and Multiple Contexts 555 D.1 Object Deletion Behavior . . . . . . . . . . . . . . . . . . . . . . 555 D.1.1 Side Effects of Shared Context Destruction . . . . . . . . 555 D.1.2 Automatic Unbinding of Deleted Objects . . . . . . . . . 556 D.1.3 Deleted Object and Object Name Lifetimes . . . . . . . . 556 D.2 Sync Objects and Multiple Contexts . . . . . . . . . . . . . . . . 557 D.3 Propagating Changes to Objects . . . . . . . . . . . . . . . . . . 557 D.3.1 Determining Completion of Changes to an object . . . . . 558 D.3.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . 558 D.3.3 Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . 558 E Profiles and the Deprecation Model 560 E.1 Core and Compatibility Profiles . . . . . . . . . . . . . . . . . . 561 E.2 Deprecated and Removed Features . . . . . . . . . . . . . . . . . 561 E.2.1 Deprecated But Still Supported Features . . . . . . . . . . 561 E.2.2 Removed Features . . . . . . . . . . . . . . . . . . . . . 562 F Version 3.0 and Before 567 F.1 New Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . 567 F.2 Deprecation Model . . . . . . . . . . . . . . . . . . . . . . . . . 568 F.3 Changed Tokens . . . . . . . . . . . . . . . . . . . . . . . . . . . 569 F.4 Change Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 569 F.5 Credits and Acknowledgements . . . . . . . . . . . . . . . . . . 571 G Version 3.1 574 G.1 New Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . 574 G.2 Deprecation Model . . . . . . . . . . . . . . . . . . . . . . . . . 575 G.3 Change Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 575 G.4 Credits and Acknowledgements . . . . . . . . . . . . . . . . . . 576 OpenGL 4.1 (Compatibility Profile) - July 25, 2010
Page 1 and 2: The OpenGL R○ Graphics System: A
Page 3 and 4: Contents 1 Introduction 1 1.1 Forma
Page 5 and 6: CONTENTS iii 2.15.2 Tessellation Pr
Page 7: CONTENTS v 3.14 Multisample Point F
Page 11 and 12: CONTENTS ix L.3.11 Vertex Blend . .
Page 13 and 14: CONTENTS xi L.3.91 Shader Precision
Page 15 and 16: LIST OF FIGURES xiii 3.11 Example o
Page 17 and 18: LIST OF TABLES xv 3.10 UNSIGNED_SHO
Page 19 and 20: LIST OF TABLES xvii 6.36 Renderbuff
Page 21 and 22: Chapter 1 Introduction This documen
Page 23 and 24: 1.5. OUR VIEW 3 the CPU and the gra
Page 25 and 26: Chapter 2 OpenGL Operation 2.1 Open
Page 27 and 28: 2.1. OPENGL FUNDAMENTALS 7 section
Page 29 and 30: 2.1. OPENGL FUNDAMENTALS 9 Any repr
Page 31 and 32: 2.1. OPENGL FUNDAMENTALS 11 2.1.2 F
Page 33 and 34: 2.2. GL STATE 13 After conversion,
Page 35 and 36: 2.4. BASIC GL OPERATION 15 Type Des
Page 37 and 38: 2.4. BASIC GL OPERATION 17 Display
Page 39 and 40: 2.6. BEGIN/END PARADIGM 19 Error De
Page 41 and 42: 2.6. BEGIN/END PARADIGM 21 Vertex C
Page 43 and 44: 2.6. BEGIN/END PARADIGM 23 first ve
Page 45 and 46: 2.6. BEGIN/END PARADIGM 25 2 4 6 2
Page 47 and 48: 2.6. BEGIN/END PARADIGM 27 Figure 2
Page 49 and 50: 2.6. BEGIN/END PARADIGM 29 Primitiv
Page 51 and 52: 2.7. VERTEX SPECIFICATION 31 to cha
Page 53 and 54: 2.7. VERTEX SPECIFICATION 33 This c
Page 55 and 56: 2.7. VERTEX SPECIFICATION 35 void C
Page 57 and 58: 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 does not exis
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2.8. VERTEX ARRAYS 51 is a restrict
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2.8. VERTEX ARRAYS 53 The command v
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2.9. BUFFER OBJECTS 55 } } else Dis
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2.9. BUFFER OBJECTS 57 Name Type In
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2.9. BUFFER OBJECTS 59 Name Value B
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2.9. BUFFER OBJECTS 61 pointers, or
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2.9. BUFFER OBJECTS 63 void *MapBuf
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2.9. BUFFER OBJECTS 65 sizeiptr siz
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2.10. VERTEX ARRAY OBJECTS 67 ing t
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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 91 2.14 Vertex
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2.14. VERTEX SHADERS 93 the text st
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2.14. VERTEX SHADERS 95 compiled to
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2.14. VERTEX SHADERS 97 obtain more
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2.14. VERTEX SHADERS 99 if (program
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2.14. VERTEX SHADERS 101 where pipe
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2.14. VERTEX SHADERS 103 or outputs
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2.14. VERTEX SHADERS 105 in length
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2.14. VERTEX SHADERS 107 Data type
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2.14. VERTEX SHADERS 109 After a pr
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2.14. VERTEX SHADERS 111 uniform bl
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2.14. VERTEX SHADERS 113 void GetAc
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2.14. VERTEX SHADERS 115 successful
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2.14. VERTEX SHADERS 117 If one or
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2.14. VERTEX SHADERS 119 OpenGL Sha
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2.14. VERTEX SHADERS 121 of the uni
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2.14. VERTEX SHADERS 123 If any of
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2.14. VERTEX SHADERS 125 • Member
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2.14. VERTEX SHADERS 127 matrix is
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2.14. VERTEX SHADERS 129 limit on t
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2.14. VERTEX SHADERS 131 will load
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2.14. VERTEX SHADERS 133 able writt
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2.14. VERTEX SHADERS 135 • the to
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2.14. VERTEX SHADERS 137 Instead, t
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2.14. VERTEX SHADERS 139 • the te
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2.14. VERTEX SHADERS 141 • The sa
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2.14. VERTEX SHADERS 143 This error
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2.14. VERTEX SHADERS 145 variable.
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2.15. TESSELLATION 147 of the outpu
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2.15. TESSELLATION 149 Tessellation
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2.15. TESSELLATION 151 whose tessel
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2.15. TESSELLATION 153 called the s
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2.15. TESSELLATION 155 float *value
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2.15. TESSELLATION 157 Figure 2.14.
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2.15. TESSELLATION 159 control the
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2.15. TESSELLATION 161 to subsequen
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2.15. TESSELLATION 163 the provided
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2.15. TESSELLATION 165 • The vari
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2.16. GEOMETRY SHADERS 167 the valu
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2.16. GEOMETRY SHADERS 169 vertices
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2.16. GEOMETRY SHADERS 171 • Flat
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2.16. GEOMETRY SHADERS 173 • Stru
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2.16. GEOMETRY SHADERS 175 The buil
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2.17. COORDINATE TRANSFORMATIONS 17
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2.17. COORDINATE TRANSFORMATIONS 17
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2.18. ASYNCHRONOUS QUERIES 181 retu
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2.19. CONDITIONAL RENDERING 183 2.1
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2.20. TRANSFORM FEEDBACK 185 return
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2.20. TRANSFORM FEEDBACK 187 Transf
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2.20. TRANSFORM FEEDBACK 189 itive
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2.21. PRIMITIVE QUERIES 191 is gene
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2.22. FLATSHADING 193 Primitive typ
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2.23. PRIMITIVE CLIPPING 195 lie in
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2.24. FINAL COLOR PROCESSING 197 ar
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2.25. CURRENT RASTER POSITION 199 c
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2.25. CURRENT RASTER POSITION 201 i
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203 Fixed function or fragment shad
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3.3. ANTIALIASING 205 these b bits
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3.3. ANTIALIASING 207 have fixed sa
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3.4. POINTS 209 derived size = clam
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¡ ¡ ¡ ¡ ¡ ¡ 3.4. POINTS 211 5
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3.4. POINTS 213 All fragments produ
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3.5. LINE SEGMENTS 215 ported is eq
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3.5. LINE SEGMENTS 217 window-coord
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3.5. LINE SEGMENTS 219 width = 2 wi
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3.6. POLYGONS 221 is rasterized as
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3.6. POLYGONS 223 is disabled or th
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3.6. POLYGONS 225 If x w and y w ar
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3.6. POLYGONS 227 given polygon is
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3.7. PIXEL RECTANGLES 229 Parameter
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3.7. PIXEL RECTANGLES 231 Parameter
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3.7. PIXEL RECTANGLES 233 pack buff
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3.7. PIXEL RECTANGLES 235 defines a
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3.7. PIXEL RECTANGLES 237 R, G, B,
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3.7. PIXEL RECTANGLES 239 precisely
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3.7. PIXEL RECTANGLES 241 Histogram
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¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡
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3.7. PIXEL RECTANGLES 245 Format Na
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3.7. PIXEL RECTANGLES 247 ROW_LENGT
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3.7. PIXEL RECTANGLES 249 an unsign
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3.7. PIXEL RECTANGLES 251 UNSIGNED_
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3.7. PIXEL RECTANGLES 253 Format Fi
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3.7. PIXEL RECTANGLES 255 3.7.5 Ras
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3.7. PIXEL RECTANGLES 257 (either z
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3.7. PIXEL RECTANGLES 259 must have
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3.7. PIXEL RECTANGLES 261 Base Filt
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3.7. PIXEL RECTANGLES 263 and C c i
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3.7. PIXEL RECTANGLES 265 ALPHA_BIA
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3.8. BITMAPS 267 ignored.) If a par
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3.9. TEXTURING 269 Bitmap Multisamp
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3.9. TEXTURING 271 specifies the ac
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3.9. TEXTURING 273 returns TRUE if
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3.9. TEXTURING 275 MIRRORED_REPEAT
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3.9. TEXTURING 277 elements in one
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3.9. TEXTURING 279 to a specific co
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3.9. TEXTURING 281 A preliminary sh
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3.9. TEXTURING 283 Sized internal c
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3.9. TEXTURING 285 Sized Base D S I
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3.9. TEXTURING 287 level of detail
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3.9. TEXTURING 289 • UNPACK_SKIP_
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3.9. TEXTURING 291 1.0 5.0 4 3 t v
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3.9. TEXTURING 293 defines a one-di
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3.9. TEXTURING 295 generates the er
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3.9. TEXTURING 297 • xoffset or y
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3.9. TEXTURING 299 of TEXTURE_WIDTH
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3.9. TEXTURING 301 This guarantee a
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3.9. TEXTURING 303 3.9.7 Buffer Tex
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3.9. TEXTURING 305 Internal formats
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3.9. TEXTURING 307 Texture paramete
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3.9. TEXTURING 309 Major Axis Direc
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3.9. TEXTURING 311 If λ(x, y) is l
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3.9. TEXTURING 313 Coordinate Wrapp
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3.9. TEXTURING 315 i 0 = wrap(⌊u
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3.9. TEXTURING 317 Figure 3.11. An
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3.9. TEXTURING 319 The values of le
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3.9. TEXTURING 321 3.9.12 Texture M
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3.9. TEXTURING 323 means that a tex
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3.9. TEXTURING 325 pixel data are t
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3.9. TEXTURING 327 Texture Base Tex
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3.9. TEXTURING 329 COMBINE_RGB Text
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3.9. TEXTURING 331 The state requir
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3.9. TEXTURING 333 reference value.
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3.9. TEXTURING 335 C f CT 0 CT 1 TE
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3.11. FOG 337 void Fog{if}( enum pn
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3.12. FRAGMENT SHADERS 339 MAX_FRAG
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3.12. FRAGMENT SHADERS 341 The resu
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3.12. FRAGMENT SHADERS 343 geometry
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3.12. FRAGMENT SHADERS 345 range co
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3.13. ANTIALIASING APPLICATION 347
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Chapter 4 Per-Fragment Operations a
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4.1. PER-FRAGMENT OPERATIONS 351 Fr
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4.1. PER-FRAGMENT OPERATIONS 353 st
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4.1. PER-FRAGMENT OPERATIONS 355 ma
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4.1. PER-FRAGMENT OPERATIONS 357 a
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4.1. PER-FRAGMENT OPERATIONS 359 4.
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4.1. PER-FRAGMENT OPERATIONS 361 Bl
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4.1. PER-FRAGMENT OPERATIONS 363 vo
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4.1. PER-FRAGMENT OPERATIONS 365 Th
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4.1. PER-FRAGMENT OPERATIONS 367 co
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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 393 If SAM
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4.4. FRAMEBUFFER OBJECTS 395 If a f
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4.4. FRAMEBUFFER OBJECTS 397 4.4.2
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4.4. FRAMEBUFFER OBJECTS 399 The co
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4.4. FRAMEBUFFER OBJECTS 401 error
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4.4. FRAMEBUFFER OBJECTS 403 void F
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4.4. FRAMEBUFFER OBJECTS 405 • Th
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4.4. FRAMEBUFFER OBJECTS 407 FRAMEB
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4.4. FRAMEBUFFER OBJECTS 409 • im
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4.4. FRAMEBUFFER OBJECTS 411 • At
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4.4. FRAMEBUFFER OBJECTS 413 4.4.5
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4.4. FRAMEBUFFER OBJECTS 415 Layer
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Chapter 5 Special Functions This ch
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5.1. EVALUATORS 419 Integers Reals
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5.1. EVALUATORS 421 The second way
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5.2. SELECTION 423 EvalCoord2(p *
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5.3. FEEDBACK 425 of each primitive
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5.4. TIMER QUERIES 427 Type coordin
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5.5. DISPLAY LISTS 429 started or s
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5.5. DISPLAY LISTS 431 provides an
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5.5. DISPLAY LISTS 433 Framebuffer
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5.7. SYNC OBJECTS AND FENCES 435 Pr
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5.7. SYNC OBJECTS AND FENCES 437 If
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5.8. HINTS 439 Target PERSPECTIVE_C
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6.1. QUERYING GL STATE 441 void Get
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6.1. QUERYING GL STATE 443 6.1.3 En
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6.1. QUERYING GL STATE 445 TEXTURE_
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6.1. QUERYING GL STATE 447 • form
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6.1. QUERYING GL STATE 449 6.1.5 Sa
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6.1. QUERYING GL STATE 451 format N
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6.1. QUERYING GL STATE 453 are used
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6.1. QUERYING GL STATE 455 the corr
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6.1. QUERYING GL STATE 457 target i
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6.1. QUERYING GL STATE 459 If sync
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6.1. QUERYING GL STATE 461 or size)
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6.1. QUERYING GL STATE 463 If pname
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6.1. QUERYING GL STATE 465 If pname
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6.1. QUERYING GL STATE 467 range[0]
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6.1. QUERYING GL STATE 469 return t
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6.1. QUERYING GL STATE 471 • If p
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6.1. QUERYING GL STATE 473 6.1.21 S
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6.2. STATE TABLES 475 Operations on
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6.2. STATE TABLES 477 when not usin
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6.2. STATE TABLES 479 Get value Typ
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6.2. STATE TABLES 529 Get Command M
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6.2. STATE TABLES 531 Get Command M
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A.2. MULTI-PASS ALGORITHMS 543 A.2
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A.4. TESSELLATION INVARIANCE 545 Ru
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A.5. WHAT ALL THIS MEANS 547 Rule 7
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549 stencil comparison function; it
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Appendix C Compressed Texture Image
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C.1. RGTC COMPRESSED TEXTURE IMAGE
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Appendix D Shared Objects and Multi
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D.2. SYNC OBJECTS AND MULTIPLE CONT
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D.3. PROPAGATING CHANGES TO OBJECTS
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E.1. CORE AND COMPATIBILITY PROFILE
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E.2. DEPRECATED AND REMOVED FEATURE
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E.2. DEPRECATED AND REMOVED FEATURE
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Appendix F Version 3.0 and Before O
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F.3. CHANGED TOKENS 569 New Token N
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F.5. CREDITS AND ACKNOWLEDGEMENTS 5
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F.5. CREDITS AND ACKNOWLEDGEMENTS 5
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G.2. DEPRECATION MODEL 575 state ha
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G.4. CREDITS AND ACKNOWLEDGEMENTS 5
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Appendix H Version 3.2 OpenGL versi
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H.4. CHANGE LOG 581 New Token Name
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H.5. CREDITS AND ACKNOWLEDGEMENTS 5
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H.5. CREDITS AND ACKNOWLEDGEMENTS 5
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I.2. DEPRECATION MODEL 587 ing fact
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I.4. CREDITS AND ACKNOWLEDGEMENTS 5
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J.1. NEW FEATURES 591 • Mechanism
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J.4. CREDITS AND ACKNOWLEDGEMENTS 5
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Appendix K Version 4.1 OpenGL versi
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K.5. CREDITS AND ACKNOWLEDGEMENTS 5
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Appendix L Extension Registry, Head
Page 621 and 622:
L.3. ARB EXTENSIONS 601 L.3.2 be am
Page 623 and 624:
L.3. ARB EXTENSIONS 603 L.3.13 Text
Page 625 and 626:
L.3. ARB EXTENSIONS 605 L.3.28 Open
Page 627 and 628:
L.3. ARB EXTENSIONS 607 The name st
Page 629 and 630:
L.3. ARB EXTENSIONS 609 equivalent
Page 631 and 632:
L.3. ARB EXTENSIONS 611 L.3.59 Seam
Page 633 and 634:
L.3. ARB EXTENSIONS 613 The name st
Page 635 and 636:
L.3. ARB EXTENSIONS 615 L.3.84 Tess
Page 637 and 638:
L.3. ARB EXTENSIONS 617 L.3.97 Cont
Page 639 and 640:
INDEX 619 519 ACTIVE UNIFORM BLOCKS
Page 641 and 642:
INDEX 621 CallList, 31, 430, 431, 5
Page 643 and 644:
INDEX 623 RGTC2, 280, 285, 554 COMP
Page 645 and 646:
INDEX 625 DEPTH FUNC, 500 DEPTH RAN
Page 647 and 648:
INDEX 627 EvalCoord1f, 421 EvalCoor
Page 649 and 650:
INDEX 629 FramebufferRenderbuffer,
Page 651 and 652:
INDEX 631 GetQueryObjectiv, 457, 52
Page 653 and 654:
INDEX 633 GL ARB texture cube map a
Page 655 and 656:
INDEX 635 HISTOGRAM ALPHA SIZE, 453
Page 657 and 658:
INDEX 637 layout, 126 LEFT, 360, 37
Page 659 and 660:
INDEX 639 MAX CLIP DISTANCES, 528,
Page 661 and 662:
INDEX 641 MAX TRANSFORM FEEDBACK -
Page 663 and 664:
INDEX 643 PACK IMAGE HEIGHT, 382, 4
Page 665 and 666:
INDEX 645 101, 143, 464 PROGRAM BIN
Page 667 and 668:
INDEX 647 189, 190 RETURN, 379 RG,
Page 669 and 670:
INDEX 649 SECONDARY COLOR ARRAY - P
Page 671 and 672:
INDEX 651 TESS GEN VERTEX ORDER, 46
Page 673 and 674:
INDEX 653 TEXTURE CUBE MAP POS- ITI
Page 675 and 676:
INDEX 655 Uniform*i{v}, 121, 122 Un
Page 677 and 678:
INDEX 657 UNSIGNED SHORT 5 6 5 REV,
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OpenGL 4.1 (Compatibility Profile) - July 25, 2010

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