1gl(3) Erlang Module Definition gl(3)
2
6 gl - Erlang wrapper functions for OpenGL
7
9 Standard OpenGL API
10 This documents the functions as a brief version of the complete OpenGL
12 reference pages.
13
15 clamp() = float()
16 offset() = integer() >= 0
18 i() = integer()
20 f() = float()
22 enum() = integer() >= 0
24 matrix() = m12() | m16()
26 m12() =
28 {f(), f(), f(), f(), f(), f(), f(), f(), f(), f(), f(), f()}
29 m16() =
31 {f(),
32 f(),
33 f(),
34 f(),
35 f(),
36 f(),
37 f(),
38 f(),
39 f(),
40 f(),
41 f(),
42 f(),
43 f(),
44 f(),
45 f(),
46 f()}
47 mem() = binary() | tuple()
49
51 accum(Op :: enum(), Value :: f()) -> ok
52 The accumulation buffer is an extended-range color buffer. Im‐
54 ages are not rendered into it. Rather, images rendered into one
55 of the color buffers are added to the contents of the accumula‐
56 tion buffer after rendering. Effects such as antialiasing (of
57 points, lines, and polygons), motion blur, and depth of field
58 can be created by accumulating images generated with different
59 transformation matrices.
60 External documentation.
62 activeShaderProgram(Pipeline :: i(), Program :: i()) -> ok
64 gl:activeShaderProgram/2 sets the linked program named by Pro‐
66 gram to be the active program for the program pipeline object
67 Pipeline. The active program in the active program pipeline ob‐
68 ject is the target of calls to gl:uniform() when no program has
69 been made current through a call to gl:useProgram/1.
70 External documentation.
72 activeTexture(Texture :: enum()) -> ok
74 gl:activeTexture/1 selects which texture unit subsequent texture
76 state calls will affect. The number of texture units an imple‐
77 mentation supports is implementation dependent, but must be at
78 least 80.
79 External documentation.
81 alphaFunc(Func :: enum(), Ref :: clamp()) -> ok
83 The alpha test discards fragments depending on the outcome of a
85 comparison between an incoming fragment's alpha value and a con‐
86 stant reference value. gl:alphaFunc/2 specifies the reference
87 value and the comparison function. The comparison is performed
88 only if alpha testing is enabled. By default, it is not enabled.
89 (See gl:enable/1 and gl:disable/1 of ?GL_ALPHA_TEST.)
90 External documentation.
92 areTexturesResident(Textures :: [i()]) ->
94 {0 | 1, Residences :: [0 | 1]}
95 GL establishes a ``working set'' of textures that are resident
97 in texture memory. These textures can be bound to a texture tar‐
98 get much more efficiently than textures that are not resident.
99 External documentation.
101 arrayElement(I :: i()) -> ok
103 gl:arrayElement/1 commands are used within gl:'be‐
105 gin'/1/gl:'end'/0 pairs to specify vertex and attribute data for
106 point, line, and polygon primitives. If ?GL_VERTEX_ARRAY is en‐
107 abled when gl:arrayElement/1 is called, a single vertex is
108 drawn, using vertex and attribute data taken from location I of
109 the enabled arrays. If ?GL_VERTEX_ARRAY is not enabled, no draw‐
110 ing occurs but the attributes corresponding to the enabled ar‐
111 rays are modified.
112 External documentation.
114 attachObjectARB(ContainerObj :: i(), Obj :: i()) -> ok
116 No documentation available.
118 attachShader(Program :: i(), Shader :: i()) -> ok
120 In order to create a complete shader program, there must be a
122 way to specify the list of things that will be linked together.
123 Program objects provide this mechanism. Shaders that are to be
124 linked together in a program object must first be attached to
125 that program object. gl:attachShader/2 attaches the shader ob‐
126 ject specified by Shader to the program object specified by Pro‐
127 gram. This indicates that Shader will be included in link opera‐
128 tions that will be performed on Program.
129 External documentation.
131 'begin'(Mode :: enum()) -> ok
133 'end'() -> ok
135 gl:'begin'/1 and gl:'end'/0 delimit the vertices that define a
137 primitive or a group of like primitives. gl:'begin'/1 accepts a
138 single argument that specifies in which of ten ways the vertices
139 are interpreted. Taking n as an integer count starting at one,
140 and N as the total number of vertices specified, the interpreta‐
141 tions are as follows:
142 External documentation.
144 beginConditionalRender(Id :: i(), Mode :: enum()) -> ok
146 endConditionalRender() -> ok
148 Conditional rendering is started using gl:beginConditionalRen‐
150 der/2 and ended using gl:endConditionalRender/0. During condi‐
151 tional rendering, all vertex array commands, as well as
152 gl:clear/1 and gl:clearBuffer() have no effect if the (?GL_SAM‐
153 PLES_PASSED) result of the query object Id is zero, or if the
154 (?GL_ANY_SAMPLES_PASSED) result is ?GL_FALSE. The results of
155 commands setting the current vertex state, such as gl:vertexAt‐
156 trib() are undefined. If the (?GL_SAMPLES_PASSED) result is non-
157 zero or if the (?GL_ANY_SAMPLES_PASSED) result is ?GL_TRUE, such
158 commands are not discarded. The Id parameter to gl:beginCondi‐
159 tionalRender/2 must be the name of a query object previously re‐
160 turned from a call to gl:genQueries/1. Mode specifies how the
161 results of the query object are to be interpreted. If Mode is
162 ?GL_QUERY_WAIT, the GL waits for the results of the query to be
163 available and then uses the results to determine if subsequent
164 rendering commands are discarded. If Mode is ?GL_QUERY_NO_WAIT,
165 the GL may choose to unconditionally execute the subsequent ren‐
166 dering commands without waiting for the query to complete.
167 External documentation.
169 endList() -> ok
171 No documentation available.
173 beginQuery(Target :: enum(), Id :: i()) -> ok
175 endQuery(Target :: enum()) -> ok
177 gl:beginQuery/2 and gl:endQuery/1 delimit the boundaries of a
179 query object. Query must be a name previously returned from a
180 call to gl:genQueries/1. If a query object with name Id does not
181 yet exist it is created with the type determined by Target. Tar‐
182 get must be one of ?GL_SAMPLES_PASSED, ?GL_ANY_SAMPLES_PASSED,
183 ?GL_PRIMITIVES_GENERATED, ?GL_TRANSFORM_FEEDBACK_PRIMI‐
184 TIVES_WRITTEN, or ?GL_TIME_ELAPSED. The behavior of the query
185 object depends on its type and is as follows.
186 External documentation.
188 beginQueryIndexed(Target :: enum(), Index :: i(), Id :: i()) -> ok
190 No documentation available.
192 endQueryIndexed(Target :: enum(), Index :: i()) -> ok
194 gl:beginQueryIndexed/3 and gl:endQueryIndexed/2 delimit the
196 boundaries of a query object. Query must be a name previously
197 returned from a call to gl:genQueries/1. If a query object with
198 name Id does not yet exist it is created with the type deter‐
199 mined by Target. Target must be one of ?GL_SAMPLES_PASSED,
200 ?GL_ANY_SAMPLES_PASSED, ?GL_PRIMITIVES_GENERATED, ?GL_TRANS‐
201 FORM_FEEDBACK_PRIMITIVES_WRITTEN, or ?GL_TIME_ELAPSED. The be‐
202 havior of the query object depends on its type and is as fol‐
203 lows.
204 External documentation.
206 beginTransformFeedback(PrimitiveMode :: enum()) -> ok
208 endTransformFeedback() -> ok
210 Transform feedback mode captures the values of varying variables
212 written by the vertex shader (or, if active, the geometry
213 shader). Transform feedback is said to be active after a call to
214 gl:beginTransformFeedback/1 until a subsequent call to gl:end‐
215 TransformFeedback/0. Transform feedback commands must be paired.
216 External documentation.
218 bindAttribLocation(Program :: i(), Index :: i(), Name :: string()) ->
220 ok
221 gl:bindAttribLocation/3 is used to associate a user-defined at‐
223 tribute variable in the program object specified by Program with
224 a generic vertex attribute index. The name of the user-defined
225 attribute variable is passed as a null terminated string in
226 Name. The generic vertex attribute index to be bound to this
227 variable is specified by Index. When Program is made part of
228 current state, values provided via the generic vertex attribute
229 Index will modify the value of the user-defined attribute vari‐
230 able specified by Name.
231 External documentation.
233 bindAttribLocationARB(ProgramObj :: i(),
235 Index :: i(),
236 Name :: string()) ->
237 ok
238 No documentation available.
240 bindBuffer(Target :: enum(), Buffer :: i()) -> ok
242 gl:bindBuffer/2 binds a buffer object to the specified buffer
244 binding point. Calling gl:bindBuffer/2 with Target set to one of
245 the accepted symbolic constants and Buffer set to the name of a
246 buffer object binds that buffer object name to the target. If no
247 buffer object with name Buffer exists, one is created with that
248 name. When a buffer object is bound to a target, the previous
249 binding for that target is automatically broken.
250 External documentation.
252 bindBufferBase(Target :: enum(), Index :: i(), Buffer :: i()) ->
254 ok
255 gl:bindBufferBase/3 binds the buffer object Buffer to the bind‐
257 ing point at index Index of the array of targets specified by
258 Target. Each Target represents an indexed array of buffer bind‐
259 ing points, as well as a single general binding point that can
260 be used by other buffer manipulation functions such as gl:bind‐
261 Buffer/2 or glMapBuffer. In addition to binding Buffer to the
262 indexed buffer binding target, gl:bindBufferBase/3 also binds
263 Buffer to the generic buffer binding point specified by Target.
264 External documentation.
266 bindBufferRange(Target :: enum(),
268 Index :: i(),
269 Buffer :: i(),
270 Offset :: i(),
271 Size :: i()) ->
272 ok
273 gl:bindBufferRange/5 binds a range the buffer object Buffer rep‐
275 resented by Offset and Size to the binding point at index Index
276 of the array of targets specified by Target. Each Target repre‐
277 sents an indexed array of buffer binding points, as well as a
278 single general binding point that can be used by other buffer
279 manipulation functions such as gl:bindBuffer/2 or glMapBuffer.
280 In addition to binding a range of Buffer to the indexed buffer
281 binding target, gl:bindBufferRange/5 also binds the range to the
282 generic buffer binding point specified by Target.
283 External documentation.
285 bindBuffersBase(Target :: enum(), First :: i(), Buffers :: [i()]) ->
287 ok
288 gl:bindBuffersBase/3 binds a set of Count buffer objects whose
290 names are given in the array Buffers to the Count consecutive
291 binding points starting from index First of the array of targets
292 specified by Target. If Buffers is ?NULL then gl:bindBuffers‐
293 Base/3 unbinds any buffers that are currently bound to the ref‐
294 erenced binding points. Assuming no errors are generated, it is
295 equivalent to the following pseudo-code, which calls gl:bind‐
296 BufferBase/3, with the exception that the non-indexed Target is
297 not changed by gl:bindBuffersBase/3:
298 External documentation.
300 bindBuffersRange(Target :: enum(),
302 First :: i(),
303 Buffers :: [i()],
304 Offsets :: [i()],
305 Sizes :: [i()]) ->
306 ok
307 gl:bindBuffersRange/5 binds a set of Count ranges from buffer
309 objects whose names are given in the array Buffers to the Count
310 consecutive binding points starting from index First of the ar‐
311 ray of targets specified by Target. Offsets specifies the ad‐
312 dress of an array containing Count starting offsets within the
313 buffers, and Sizes specifies the address of an array of Count
314 sizes of the ranges. If Buffers is ?NULL then Offsets and Sizes
315 are ignored and gl:bindBuffersRange/5 unbinds any buffers that
316 are currently bound to the referenced binding points. Assuming
317 no errors are generated, it is equivalent to the following
318 pseudo-code, which calls gl:bindBufferRange/5, with the excep‐
319 tion that the non-indexed Target is not changed by gl:bind‐
320 BuffersRange/5:
321 External documentation.
323 bindFragDataLocation(Program :: i(),
325 Color :: i(),
326 Name :: string()) ->
327 ok
328 gl:bindFragDataLocation/3 explicitly specifies the binding of
330 the user-defined varying out variable Name to fragment shader
331 color number ColorNumber for program Program. If Name was bound
332 previously, its assigned binding is replaced with ColorNumber.
333 Name must be a null-terminated string. ColorNumber must be less
334 than ?GL_MAX_DRAW_BUFFERS.
335 External documentation.
337 bindFragDataLocationIndexed(Program :: i(),
339 ColorNumber :: i(),
340 Index :: i(),
341 Name :: string()) ->
342 ok
343 No documentation available.
345 bindFramebuffer(Target :: enum(), Framebuffer :: i()) -> ok
347 gl:bindFramebuffer/2 binds the framebuffer object with name
349 Framebuffer to the framebuffer target specified by Target. Tar‐
350 get must be either ?GL_DRAW_FRAMEBUFFER, ?GL_READ_FRAMEBUFFER or
351 ?GL_FRAMEBUFFER. If a framebuffer object is bound to
352 ?GL_DRAW_FRAMEBUFFER or ?GL_READ_FRAMEBUFFER, it becomes the
353 target for rendering or readback operations, respectively, until
354 it is deleted or another framebuffer is bound to the correspond‐
355 ing bind point. Calling gl:bindFramebuffer/2 with Target set to
356 ?GL_FRAMEBUFFER binds Framebuffer to both the read and draw
357 framebuffer targets. Framebuffer is the name of a framebuffer
358 object previously returned from a call to gl:genFramebuffers/1,
359 or zero to break the existing binding of a framebuffer object to
360 Target.
361 External documentation.
363 bindImageTexture(Unit, Texture, Level, Layered, Layer, Access,
365 Format) ->
366 ok
367 Types:
369 Unit = Texture = Level = i()
371 Layered = 0 | 1
372 Layer = i()
373 Access = Format = enum()
374 gl:bindImageTexture/7 binds a single level of a texture to an
376 image unit for the purpose of reading and writing it from
377 shaders. Unit specifies the zero-based index of the image unit
378 to which to bind the texture level. Texture specifies the name
379 of an existing texture object to bind to the image unit. If Tex‐
380 ture is zero, then any existing binding to the image unit is
381 broken. Level specifies the level of the texture to bind to the
382 image unit.
383 External documentation.
385 bindImageTextures(First :: i(), Textures :: [i()]) -> ok
387 gl:bindImageTextures/2 binds images from an array of existing
389 texture objects to a specified number of consecutive image
390 units. Count specifies the number of texture objects whose names
391 are stored in the array Textures. That number of texture names
392 are read from the array and bound to the Count consecutive tex‐
393 ture units starting from First. If the name zero appears in the
394 Textures array, any existing binding to the image unit is reset.
395 Any non-zero entry in Textures must be the name of an existing
396 texture object. When a non-zero entry in Textures is present,
397 the image at level zero is bound, the binding is considered lay‐
398 ered, with the first layer set to zero, and the image is bound
399 for read-write access. The image unit format parameter is taken
400 from the internal format of the image at level zero of the tex‐
401 ture object. For cube map textures, the internal format of the
402 positive X image of level zero is used. If Textures is ?NULL
403 then it is as if an appropriately sized array containing only
404 zeros had been specified.
405 External documentation.
407 bindProgramARB(Target :: enum(), Program :: i()) -> ok
409 No documentation available.
411 bindProgramPipeline(Pipeline :: i()) -> ok
413 gl:bindProgramPipeline/1 binds a program pipeline object to the
415 current context. Pipeline must be a name previously returned
416 from a call to gl:genProgramPipelines/1. If no program pipeline
417 exists with name Pipeline then a new pipeline object is created
418 with that name and initialized to the default state vector.
419 External documentation.
421 bindRenderbuffer(Target :: enum(), Renderbuffer :: i()) -> ok
423 gl:bindRenderbuffer/2 binds the renderbuffer object with name
425 Renderbuffer to the renderbuffer target specified by Target.
426 Target must be ?GL_RENDERBUFFER. Renderbuffer is the name of a
427 renderbuffer object previously returned from a call to gl:gen‐
428 Renderbuffers/1, or zero to break the existing binding of a ren‐
429 derbuffer object to Target.
430 External documentation.
432 bindSampler(Unit :: i(), Sampler :: i()) -> ok
434 gl:bindSampler/2 binds Sampler to the texture unit at index
436 Unit. Sampler must be zero or the name of a sampler object pre‐
437 viously returned from a call to gl:genSamplers/1. Unit must be
438 less than the value of ?GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS.
439 External documentation.
441 bindSamplers(First :: i(), Samplers :: [i()]) -> ok
443 gl:bindSamplers/2 binds samplers from an array of existing sam‐
445 pler objects to a specified number of consecutive sampler units.
446 Count specifies the number of sampler objects whose names are
447 stored in the array Samplers. That number of sampler names is
448 read from the array and bound to the Count consecutive sampler
449 units starting from First.
450 External documentation.
452 bindTexture(Target :: enum(), Texture :: i()) -> ok
454 gl:bindTexture/2 lets you create or use a named texture. Calling
456 gl:bindTexture/2 with Target set to ?GL_TEXTURE_1D, ?GL_TEX‐
457 TURE_2D, ?GL_TEXTURE_3D, ?GL_TEXTURE_1D_ARRAY, ?GL_TEX‐
458 TURE_2D_ARRAY, ?GL_TEXTURE_RECTANGLE, ?GL_TEXTURE_CUBE_MAP,
459 ?GL_TEXTURE_CUBE_MAP_ARRAY, ?GL_TEXTURE_BUFFER, ?GL_TEX‐
460 TURE_2D_MULTISAMPLE or ?GL_TEXTURE_2D_MULTISAMPLE_ARRAY and Tex‐
461 ture set to the name of the new texture binds the texture name
462 to the target. When a texture is bound to a target, the previous
463 binding for that target is automatically broken.
464 External documentation.
466 bindTextureUnit(Unit :: i(), Texture :: i()) -> ok
468 gl:bindTextureUnit/2 binds an existing texture object to the
470 texture unit numbered Unit.
471 External documentation.
473 bindTextures(First :: i(), Textures :: [i()]) -> ok
475 gl:bindTextures/2 binds an array of existing texture objects to
477 a specified number of consecutive texture units. Count specifies
478 the number of texture objects whose names are stored in the ar‐
479 ray Textures. That number of texture names are read from the ar‐
480 ray and bound to the Count consecutive texture units starting
481 from First. The target, or type of texture is deduced from the
482 texture object and each texture is bound to the corresponding
483 target of the texture unit. If the name zero appears in the Tex‐
484 tures array, any existing binding to any target of the texture
485 unit is reset and the default texture for that target is bound
486 in its place. Any non-zero entry in Textures must be the name of
487 an existing texture object. If Textures is ?NULL then it is as
488 if an appropriately sized array containing only zeros had been
489 specified.
490 External documentation.
492 bindTransformFeedback(Target :: enum(), Id :: i()) -> ok
494 gl:bindTransformFeedback/2 binds the transform feedback object
496 with name Id to the current GL state. Id must be a name previ‐
497 ously returned from a call to gl:genTransformFeedbacks/1. If Id
498 has not previously been bound, a new transform feedback object
499 with name Id and initialized with the default transform state
500 vector is created.
501 External documentation.
503 bindVertexArray(Array :: i()) -> ok
505 gl:bindVertexArray/1 binds the vertex array object with name Ar‐
507 ray. Array is the name of a vertex array object previously re‐
508 turned from a call to gl:genVertexArrays/1, or zero to break the
509 existing vertex array object binding.
510 External documentation.
512 bindVertexBuffer(Bindingindex :: i(),
514 Buffer :: i(),
515 Offset :: i(),
516 Stride :: i()) ->
517 ok
518 gl:bindVertexBuffer/4 and gl:vertexArrayVertexBuffer/5 bind the
520 buffer named Buffer to the vertex buffer binding point whose in‐
521 dex is given by Bindingindex. gl:bindVertexBuffer/4 modifies the
522 binding of the currently bound vertex array object, whereas
523 gl:vertexArrayVertexBuffer/5 allows the caller to specify ID of
524 the vertex array object with an argument named Vaobj, for which
525 the binding should be modified. Offset and Stride specify the
526 offset of the first element within the buffer and the distance
527 between elements within the buffer, respectively, and are both
528 measured in basic machine units. Bindingindex must be less than
529 the value of ?GL_MAX_VERTEX_ATTRIB_BINDINGS. Offset and Stride
530 must be greater than or equal to zero. If Buffer is zero, then
531 any buffer currently bound to the specified binding point is un‐
532 bound.
533 External documentation.
535 bindVertexBuffers(First :: i(),
537 Buffers :: [i()],
538 Offsets :: [i()],
539 Strides :: [i()]) ->
540 ok
541 gl:bindVertexBuffers/4 and gl:vertexArrayVertexBuffers/5 bind
543 storage from an array of existing buffer objects to a specified
544 number of consecutive vertex buffer binding points units in a
545 vertex array object. For gl:bindVertexBuffers/4, the vertex ar‐
546 ray object is the currently bound vertex array object. For
547 gl:vertexArrayVertexBuffers/5, Vaobj is the name of the vertex
548 array object.
549 External documentation.
551 bitmap(Width, Height, Xorig, Yorig, Xmove, Ymove, Bitmap) -> ok
553 Types:
555 Width = Height = i()
557 Xorig = Yorig = Xmove = Ymove = f()
558 Bitmap = offset() | mem()
559 A bitmap is a binary image. When drawn, the bitmap is positioned
561 relative to the current raster position, and frame buffer pixels
562 corresponding to 1's in the bitmap are written using the current
563 raster color or index. Frame buffer pixels corresponding to 0's
564 in the bitmap are not modified.
565 External documentation.
567 blendBarrierKHR() -> ok
569 No documentation available.
571 blendColor(Red :: clamp(),
573 Green :: clamp(),
574 Blue :: clamp(),
575 Alpha :: clamp()) ->
576 ok
577 The ?GL_BLEND_COLOR may be used to calculate the source and des‐
579 tination blending factors. The color components are clamped to
580 the range [0 1] before being stored. See gl:blendFunc/2 for a
581 complete description of the blending operations. Initially the
582 ?GL_BLEND_COLOR is set to (0, 0, 0, 0).
583 External documentation.
585 blendEquation(Mode :: enum()) -> ok
587 blendEquationi(Buf :: i(), Mode :: enum()) -> ok
589 The blend equations determine how a new pixel (the ''source''
591 color) is combined with a pixel already in the framebuffer (the
592 ''destination'' color). This function sets both the RGB blend
593 equation and the alpha blend equation to a single equation.
594 gl:blendEquationi/2 specifies the blend equation for a single
595 draw buffer whereas gl:blendEquation/1 sets the blend equation
596 for all draw buffers.
597 External documentation.
599 blendEquationSeparate(ModeRGB :: enum(), ModeAlpha :: enum()) ->
601 ok
602 blendEquationSeparatei(Buf :: i(),
604 ModeRGB :: enum(),
605 ModeAlpha :: enum()) ->
606 ok
607 The blend equations determines how a new pixel (the ''source''
609 color) is combined with a pixel already in the framebuffer (the
610 ''destination'' color). These functions specify one blend equa‐
611 tion for the RGB-color components and one blend equation for the
612 alpha component. gl:blendEquationSeparatei/3 specifies the blend
613 equations for a single draw buffer whereas gl:blendEquationSepa‐
614 rate/2 sets the blend equations for all draw buffers.
615 External documentation.
617 blendFunc(Sfactor :: enum(), Dfactor :: enum()) -> ok
619 Pixels can be drawn using a function that blends the incoming
621 (source) RGBA values with the RGBA values that are already in
622 the frame buffer (the destination values). Blending is initially
623 disabled. Use gl:enable/1 and gl:disable/1 with argument
624 ?GL_BLEND to enable and disable blending.
625 External documentation.
627 blendFuncSeparate(SfactorRGB, DfactorRGB, SfactorAlpha,
629 DfactorAlpha) ->
630 ok
631 blendFuncSeparatei(Buf :: i(),
633 SrcRGB :: enum(),
634 DstRGB :: enum(),
635 SrcAlpha :: enum(),
636 DstAlpha :: enum()) ->
637 ok
638 Pixels can be drawn using a function that blends the incoming
640 (source) RGBA values with the RGBA values that are already in
641 the frame buffer (the destination values). Blending is initially
642 disabled. Use gl:enable/1 and gl:disable/1 with argument
643 ?GL_BLEND to enable and disable blending.
644 External documentation.
646 blendFunci(Buf :: i(), Src :: enum(), Dst :: enum()) -> ok
648 No documentation available.
650 blitFramebuffer(SrcX0, SrcY0, SrcX1, SrcY1, DstX0, DstY0, DstX1,
652 DstY1, Mask, Filter) ->
653 ok
654 Types:
656 SrcX0 = SrcY0 = SrcX1 = SrcY1 = DstX0 = DstY0 = DstX1 = DstY1
658 = Mask = i()
659 Filter = enum()
660 gl:blitFramebuffer/10 and glBlitNamedFramebuffer transfer a rec‐
662 tangle of pixel values from one region of a read framebuffer to
663 another region of a draw framebuffer.
664 External documentation.
666 bufferData(Target :: enum(),
668 Size :: i(),
669 Data :: offset() | mem(),
670 Usage :: enum()) ->
671 ok
672 gl:bufferData/4 and glNamedBufferData create a new data store
674 for a buffer object. In case of gl:bufferData/4, the buffer ob‐
675 ject currently bound to Target is used. For glNamedBufferData, a
676 buffer object associated with ID specified by the caller in Buf‐
677 fer will be used instead.
678 External documentation.
680 bufferPageCommitmentARB(Target :: enum(),
682 Offset :: i(),
683 Size :: i(),
684 Commit :: 0 | 1) ->
685 ok
686 No documentation available.
688 bufferStorage(Target :: enum(),
690 Size :: i(),
691 Data :: offset() | mem(),
692 Flags :: i()) ->
693 ok
694 gl:bufferStorage/4 and glNamedBufferStorage create a new im‐
696 mutable data store. For gl:bufferStorage/4, the buffer object
697 currently bound to Target will be initialized. For glNamed‐
698 BufferStorage, Buffer is the name of the buffer object that will
699 be configured. The size of the data store is specified by Size.
700 If an initial data is available, its address may be supplied in
701 Data. Otherwise, to create an uninitialized data store, Data
702 should be ?NULL.
703 External documentation.
705 bufferSubData(Target :: enum(),
707 Offset :: i(),
708 Size :: i(),
709 Data :: offset() | mem()) ->
710 ok
711 gl:bufferSubData/4 and glNamedBufferSubData redefine some or all
713 of the data store for the specified buffer object. Data starting
714 at byte offset Offset and extending for Size bytes is copied to
715 the data store from the memory pointed to by Data. Offset and
716 Size must define a range lying entirely within the buffer ob‐
717 ject's data store.
718 External documentation.
720 callList(List :: i()) -> ok
722 gl:callList/1 causes the named display list to be executed. The
724 commands saved in the display list are executed in order, just
725 as if they were called without using a display list. If List has
726 not been defined as a display list, gl:callList/1 is ignored.
727 External documentation.
729 callLists(Lists :: [i()]) -> ok
731 gl:callLists/1 causes each display list in the list of names
733 passed as Lists to be executed. As a result, the commands saved
734 in each display list are executed in order, just as if they were
735 called without using a display list. Names of display lists that
736 have not been defined are ignored.
737 External documentation.
739 checkFramebufferStatus(Target :: enum()) -> enum()
741 gl:checkFramebufferStatus/1 and glCheckNamedFramebufferStatus
743 return the completeness status of a framebuffer object when
744 treated as a read or draw framebuffer, depending on the value of
745 Target.
746 External documentation.
748 clampColor(Target :: enum(), Clamp :: enum()) -> ok
750 gl:clampColor/2 controls color clamping that is performed during
752 gl:readPixels/7. Target must be ?GL_CLAMP_READ_COLOR. If Clamp
753 is ?GL_TRUE, read color clamping is enabled; if Clamp is
754 ?GL_FALSE, read color clamping is disabled. If Clamp is
755 ?GL_FIXED_ONLY, read color clamping is enabled only if the se‐
756 lected read buffer has fixed point components and disabled oth‐
757 erwise.
758 External documentation.
760 clear(Mask :: i()) -> ok
762 gl:clear/1 sets the bitplane area of the window to values previ‐
764 ously selected by gl:clearColor/4, gl:clearDepth/1, and
765 gl:clearStencil/1. Multiple color buffers can be cleared simul‐
766 taneously by selecting more than one buffer at a time using
767 gl:drawBuffer/1.
768 External documentation.
770 clearAccum(Red :: f(), Green :: f(), Blue :: f(), Alpha :: f()) ->
772 ok
773 gl:clearAccum/4 specifies the red, green, blue, and alpha values
775 used by gl:clear/1 to clear the accumulation buffer.
776 External documentation.
778 clearBufferfv(Buffer :: enum(),
780 Drawbuffer :: i(),
781 Value :: tuple()) ->
782 ok
783 clearBufferiv(Buffer :: enum(),
785 Drawbuffer :: i(),
786 Value :: tuple()) ->
787 ok
788 clearBufferuiv(Buffer :: enum(),
790 Drawbuffer :: i(),
791 Value :: tuple()) ->
792 ok
793 These commands clear a specified buffer of a framebuffer to
795 specified value(s). For glClearBuffer*, the framebuffer is the
796 currently bound draw framebuffer object. For glClearNamedFrame‐
797 buffer*, Framebuffer is zero, indicating the default draw frame‐
798 buffer, or the name of a framebuffer object.
799 External documentation.
801 clearBufferData(Target, Internalformat, Format, Type, Data) -> ok
803 Types:
805 Target = Internalformat = Format = Type = enum()
807 Data = offset() | mem()
808 gl:clearBufferData/5 and glClearNamedBufferData fill the en‐
810 tirety of a buffer object's data store with data from client
811 memory.
812 External documentation.
814 clearBufferSubData(Target, Internalformat, Offset, Size, Format,
816 Type, Data) ->
817 ok
818 Types:
820 Target = Internalformat = enum()
822 Offset = Size = i()
823 Format = Type = enum()
824 Data = offset() | mem()
825 gl:clearBufferSubData/7 and glClearNamedBufferSubData fill a
827 specified region of a buffer object's data store with data from
828 client memory.
829 External documentation.
831 clearBufferfi(Buffer :: enum(),
833 Drawbuffer :: i(),
834 Depth :: f(),
835 Stencil :: i()) ->
836 ok
837 No documentation available.
839 clearColor(Red :: clamp(),
841 Green :: clamp(),
842 Blue :: clamp(),
843 Alpha :: clamp()) ->
844 ok
845 gl:clearColor/4 specifies the red, green, blue, and alpha values
847 used by gl:clear/1 to clear the color buffers. Values specified
848 by gl:clearColor/4 are clamped to the range [0 1].
849 External documentation.
851 clearDepth(Depth :: clamp()) -> ok
853 gl:clearDepth/1 specifies the depth value used by gl:clear/1 to
855 clear the depth buffer. Values specified by gl:clearDepth/1 are
856 clamped to the range [0 1].
857 External documentation.
859 clearDepthf(D :: f()) -> ok
861 No documentation available.
863 clearIndex(C :: f()) -> ok
865 gl:clearIndex/1 specifies the index used by gl:clear/1 to clear
867 the color index buffers. C is not clamped. Rather, C is con‐
868 verted to a fixed-point value with unspecified precision to the
869 right of the binary point. The integer part of this value is
870 then masked with 2 m-1, where m is the number of bits in a color
871 index stored in the frame buffer.
872 External documentation.
874 clearStencil(S :: i()) -> ok
876 gl:clearStencil/1 specifies the index used by gl:clear/1 to
878 clear the stencil buffer. S is masked with 2 m-1, where m is the
879 number of bits in the stencil buffer.
880 External documentation.
882 clearTexImage(Texture :: i(),
884 Level :: i(),
885 Format :: enum(),
886 Type :: enum(),
887 Data :: offset() | mem()) ->
888 ok
889 gl:clearTexImage/5 fills all an image contained in a texture
891 with an application supplied value. Texture must be the name of
892 an existing texture. Further, Texture may not be the name of a
893 buffer texture, nor may its internal format be compressed.
894 External documentation.
896 clearTexSubImage(Texture, Level, Xoffset, Yoffset, Zoffset, Width,
898 Height, Depth, Format, Type, Data) ->
899 ok
900 Types:
902 Texture = Level = Xoffset = Yoffset = Zoffset = Width =
904 Height = Depth = i()
905 Format = Type = enum()
906 Data = offset() | mem()
907 gl:clearTexSubImage/11 fills all or part of an image contained
909 in a texture with an application supplied value. Texture must be
910 the name of an existing texture. Further, Texture may not be the
911 name of a buffer texture, nor may its internal format be com‐
912 pressed.
913 External documentation.
915 clientActiveTexture(Texture :: enum()) -> ok
917 gl:clientActiveTexture/1 selects the vertex array client state
919 parameters to be modified by gl:texCoordPointer/4, and enabled
920 or disabled with gl:enableClientState/1 or gl:disable‐
921 ClientState/1, respectively, when called with a parameter of
922 ?GL_TEXTURE_COORD_ARRAY.
923 External documentation.
925 clientWaitSync(Sync :: i(), Flags :: i(), Timeout :: i()) ->
927 enum()
928 gl:clientWaitSync/3 causes the client to block and wait for the
930 sync object specified by Sync to become signaled. If Sync is
931 signaled when gl:clientWaitSync/3 is called, gl:clientWaitSync/3
932 returns immediately, otherwise it will block and wait for up to
933 Timeout nanoseconds for Sync to become signaled.
934 External documentation.
936 clipControl(Origin :: enum(), Depth :: enum()) -> ok
938 gl:clipControl/2 controls the clipping volume behavior and the
940 clip coordinate to window coordinate transformation behavior.
941 External documentation.
943 clipPlane(Plane :: enum(), Equation :: {f(), f(), f(), f()}) -> ok
945 Geometry is always clipped against the boundaries of a six-plane
947 frustum in x, y, and z. gl:clipPlane/2 allows the specification
948 of additional planes, not necessarily perpendicular to the x, y,
949 or z axis, against which all geometry is clipped. To determine
950 the maximum number of additional clipping planes, call gl:get‐
951 Integerv/1 with argument ?GL_MAX_CLIP_PLANES. All implementa‐
952 tions support at least six such clipping planes. Because the re‐
953 sulting clipping region is the intersection of the defined half-
954 spaces, it is always convex.
955 External documentation.
957 color3b(Red :: i(), Green :: i(), Blue :: i()) -> ok
959 color3bv(X1 :: {Red :: i(), Green :: i(), Blue :: i()}) -> ok
961 color3d(Red :: f(), Green :: f(), Blue :: f()) -> ok
963 color3dv(X1 :: {Red :: f(), Green :: f(), Blue :: f()}) -> ok
965 color3f(Red :: f(), Green :: f(), Blue :: f()) -> ok
967 color3fv(X1 :: {Red :: f(), Green :: f(), Blue :: f()}) -> ok
969 color3i(Red :: i(), Green :: i(), Blue :: i()) -> ok
971 color3iv(X1 :: {Red :: i(), Green :: i(), Blue :: i()}) -> ok
973 color3s(Red :: i(), Green :: i(), Blue :: i()) -> ok
975 color3sv(X1 :: {Red :: i(), Green :: i(), Blue :: i()}) -> ok
977 color3ub(Red :: i(), Green :: i(), Blue :: i()) -> ok
979 color3ubv(X1 :: {Red :: i(), Green :: i(), Blue :: i()}) -> ok
981 color3ui(Red :: i(), Green :: i(), Blue :: i()) -> ok
983 color3uiv(X1 :: {Red :: i(), Green :: i(), Blue :: i()}) -> ok
985 color3us(Red :: i(), Green :: i(), Blue :: i()) -> ok
987 color3usv(X1 :: {Red :: i(), Green :: i(), Blue :: i()}) -> ok
989 color4b(Red :: i(), Green :: i(), Blue :: i(), Alpha :: i()) -> ok
991 color4bv(X1 ::
993 {Red :: i(), Green :: i(), Blue :: i(), Alpha :: i()}) ->
994 ok
995 color4d(Red :: f(), Green :: f(), Blue :: f(), Alpha :: f()) -> ok
997 color4dv(X1 ::
999 {Red :: f(), Green :: f(), Blue :: f(), Alpha :: f()}) ->
1000 ok
1001 color4f(Red :: f(), Green :: f(), Blue :: f(), Alpha :: f()) -> ok
1003 color4fv(X1 ::
1005 {Red :: f(), Green :: f(), Blue :: f(), Alpha :: f()}) ->
1006 ok
1007 color4i(Red :: i(), Green :: i(), Blue :: i(), Alpha :: i()) -> ok
1009 color4iv(X1 ::
1011 {Red :: i(), Green :: i(), Blue :: i(), Alpha :: i()}) ->
1012 ok
1013 color4s(Red :: i(), Green :: i(), Blue :: i(), Alpha :: i()) -> ok
1015 color4sv(X1 ::
1017 {Red :: i(), Green :: i(), Blue :: i(), Alpha :: i()}) ->
1018 ok
1019 color4ub(Red :: i(), Green :: i(), Blue :: i(), Alpha :: i()) ->
1021 ok
1022 color4ubv(X1 ::
1024 {Red :: i(),
1025 Green :: i(),
1026 Blue :: i(),
1027 Alpha :: i()}) ->
1028 ok
1029 color4ui(Red :: i(), Green :: i(), Blue :: i(), Alpha :: i()) ->
1031 ok
1032 color4uiv(X1 ::
1034 {Red :: i(),
1035 Green :: i(),
1036 Blue :: i(),
1037 Alpha :: i()}) ->
1038 ok
1039 color4us(Red :: i(), Green :: i(), Blue :: i(), Alpha :: i()) ->
1041 ok
1042 color4usv(X1 ::
1044 {Red :: i(),
1045 Green :: i(),
1046 Blue :: i(),
1047 Alpha :: i()}) ->
1048 ok
1049 The GL stores both a current single-valued color index and a
1051 current four-valued RGBA color. gl:color() sets a new four-val‐
1052 ued RGBA color. gl:color() has two major variants: gl:color3()
1053 and gl:color4(). gl:color3() variants specify new red, green,
1054 and blue values explicitly and set the current alpha value to
1055 1.0 (full intensity) implicitly. gl:color4() variants specify
1056 all four color components explicitly.
1057 External documentation.
1059 colorMask(Red :: 0 | 1,
1061 Green :: 0 | 1,
1062 Blue :: 0 | 1,
1063 Alpha :: 0 | 1) ->
1064 ok
1065 gl:colorMask/4 and gl:colorMaski/5 specify whether the individ‐
1067 ual color components in the frame buffer can or cannot be writ‐
1068 ten. gl:colorMaski/5 sets the mask for a specific draw buffer,
1069 whereas gl:colorMask/4 sets the mask for all draw buffers. If
1070 Red is ?GL_FALSE, for example, no change is made to the red com‐
1071 ponent of any pixel in any of the color buffers, regardless of
1072 the drawing operation attempted.
1073 External documentation.
1075 colorMaski(Index :: i(),
1077 R :: 0 | 1,
1078 G :: 0 | 1,
1079 B :: 0 | 1,
1080 A :: 0 | 1) ->
1081 ok
1082 No documentation available.
1084 colorMaterial(Face :: enum(), Mode :: enum()) -> ok
1086 gl:colorMaterial/2 specifies which material parameters track the
1088 current color. When ?GL_COLOR_MATERIAL is enabled, the material
1089 parameter or parameters specified by Mode, of the material or
1090 materials specified by Face, track the current color at all
1091 times.
1092 External documentation.
1094 colorPointer(Size :: i(),
1096 Type :: enum(),
1097 Stride :: i(),
1098 Ptr :: offset() | mem()) ->
1099 ok
1100 gl:colorPointer/4 specifies the location and data format of an
1102 array of color components to use when rendering. Size specifies
1103 the number of components per color, and must be 3 or 4. Type
1104 specifies the data type of each color component, and Stride
1105 specifies the byte stride from one color to the next, allowing
1106 vertices and attributes to be packed into a single array or
1107 stored in separate arrays. (Single-array storage may be more ef‐
1108 ficient on some implementations; see gl:interleavedArrays/3.)
1109 External documentation.
1111 colorSubTable(Target, Start, Count, Format, Type, Data) -> ok
1113 Types:
1115 Target = enum()
1117 Start = Count = i()
1118 Format = Type = enum()
1119 Data = offset() | mem()
1120 gl:colorSubTable/6 is used to respecify a contiguous portion of
1122 a color table previously defined using gl:colorTable/6. The pix‐
1123 els referenced by Data replace the portion of the existing table
1124 from indices Start to start+count-1, inclusive. This region may
1125 not include any entries outside the range of the color table as
1126 it was originally specified. It is not an error to specify a
1127 subtexture with width of 0, but such a specification has no ef‐
1128 fect.
1129 External documentation.
1131 colorTable(Target, Internalformat, Width, Format, Type, Table) ->
1133 ok
1134 Types:
1136 Target = Internalformat = enum()
1138 Width = i()
1139 Format = Type = enum()
1140 Table = offset() | mem()
1141 gl:colorTable/6 may be used in two ways: to test the actual size
1143 and color resolution of a lookup table given a particular set of
1144 parameters, or to load the contents of a color lookup table. Use
1145 the targets ?GL_PROXY_* for the first case and the other targets
1146 for the second case.
1147 External documentation.
1149 colorTableParameterfv(Target :: enum(),
1151 Pname :: enum(),
1152 Params :: {f(), f(), f(), f()}) ->
1153 ok
1154 colorTableParameteriv(Target :: enum(),
1156 Pname :: enum(),
1157 Params :: {i(), i(), i(), i()}) ->
1158 ok
1159 gl:colorTableParameter() is used to specify the scale factors
1161 and bias terms applied to color components when they are loaded
1162 into a color table. Target indicates which color table the scale
1163 and bias terms apply to; it must be set to ?GL_COLOR_TABLE,
1164 ?GL_POST_CONVOLUTION_COLOR_TABLE, or ?GL_POST_COLOR_MA‐
1165 TRIX_COLOR_TABLE.
1166 External documentation.
1168 compileShader(Shader :: i()) -> ok
1170 gl:compileShader/1 compiles the source code strings that have
1172 been stored in the shader object specified by Shader.
1173 External documentation.
1175 compileShaderARB(ShaderObj :: i()) -> ok
1177 No documentation available.
1179 compileShaderIncludeARB(Shader :: i(),
1181 Path :: [unicode:chardata()]) ->
1182 ok
1183 No documentation available.
1185 compressedTexImage1D(Target, Level, Internalformat, Width, Border,
1187 ImageSize, Data) ->
1188 ok
1189 Types:
1191 Target = enum()
1193 Level = i()
1194 Internalformat = enum()
1195 Width = Border = ImageSize = i()
1196 Data = offset() | mem()
1197 Texturing allows elements of an image array to be read by
1199 shaders.
1200 External documentation.
1202 compressedTexImage2D(Target, Level, Internalformat, Width, Height,
1204 Border, ImageSize, Data) ->
1205 ok
1206 Types:
1208 Target = enum()
1210 Level = i()
1211 Internalformat = enum()
1212 Width = Height = Border = ImageSize = i()
1213 Data = offset() | mem()
1214 Texturing allows elements of an image array to be read by
1216 shaders.
1217 External documentation.
1219 compressedTexImage3D(Target, Level, Internalformat, Width, Height,
1221 Depth, Border, ImageSize, Data) ->
1222 ok
1223 Types:
1225 Target = enum()
1227 Level = i()
1228 Internalformat = enum()
1229 Width = Height = Depth = Border = ImageSize = i()
1230 Data = offset() | mem()
1231 Texturing allows elements of an image array to be read by
1233 shaders.
1234 External documentation.
1236 compressedTexSubImage1D(Target, Level, Xoffset, Width, Format,
1238 ImageSize, Data) ->
1239 ok
1240 Types:
1242 Target = enum()
1244 Level = Xoffset = Width = i()
1245 Format = enum()
1246 ImageSize = i()
1247 Data = offset() | mem()
1248 Texturing allows elements of an image array to be read by
1250 shaders.
1251 External documentation.
1253 compressedTexSubImage2D(Target, Level, Xoffset, Yoffset, Width,
1255 Height, Format, ImageSize, Data) ->
1256 ok
1257 Types:
1259 Target = enum()
1261 Level = Xoffset = Yoffset = Width = Height = i()
1262 Format = enum()
1263 ImageSize = i()
1264 Data = offset() | mem()
1265 Texturing allows elements of an image array to be read by
1267 shaders.
1268 External documentation.
1270 compressedTexSubImage3D(Target, Level, Xoffset, Yoffset, Zoffset,
1272 Width, Height, Depth, Format, ImageSize,
1273 Data) ->
1274 ok
1275 Types:
1277 Target = enum()
1279 Level = Xoffset = Yoffset = Zoffset = Width = Height = Depth
1280 = i()
1281 Format = enum()
1282 ImageSize = i()
1283 Data = offset() | mem()
1284 Texturing allows elements of an image array to be read by
1286 shaders.
1287 External documentation.
1289 compressedTextureSubImage1D(Texture, Level, Xoffset, Width,
1291 Format, ImageSize, Data) ->
1292 ok
1293 Types:
1295 Texture = Level = Xoffset = Width = i()
1297 Format = enum()
1298 ImageSize = i()
1299 Data = offset() | mem()
1300 No documentation available.
1302 compressedTextureSubImage2D(Texture, Level, Xoffset, Yoffset,
1304 Width, Height, Format, ImageSize,
1305 Data) ->
1306 ok
1307 Types:
1309 Texture = Level = Xoffset = Yoffset = Width = Height = i()
1311 Format = enum()
1312 ImageSize = i()
1313 Data = offset() | mem()
1314 No documentation available.
1316 compressedTextureSubImage3D(Texture, Level, Xoffset, Yoffset,
1318 Zoffset, Width, Height, Depth, Format,
1319 ImageSize, Data) ->
1320 ok
1321 Types:
1323 Texture = Level = Xoffset = Yoffset = Zoffset = Width =
1325 Height = Depth = i()
1326 Format = enum()
1327 ImageSize = i()
1328 Data = offset() | mem()
1329 No documentation available.
1331 convolutionFilter1D(Target, Internalformat, Width, Format, Type,
1333 Image) ->
1334 ok
1335 Types:
1337 Target = Internalformat = enum()
1339 Width = i()
1340 Format = Type = enum()
1341 Image = offset() | mem()
1342 gl:convolutionFilter1D/6 builds a one-dimensional convolution
1344 filter kernel from an array of pixels.
1345 External documentation.
1347 convolutionFilter2D(Target, Internalformat, Width, Height, Format,
1349 Type, Image) ->
1350 ok
1351 Types:
1353 Target = Internalformat = enum()
1355 Width = Height = i()
1356 Format = Type = enum()
1357 Image = offset() | mem()
1358 gl:convolutionFilter2D/7 builds a two-dimensional convolution
1360 filter kernel from an array of pixels.
1361 External documentation.
1363 convolutionParameterf(Target :: enum(),
1365 Pname :: enum(),
1366 Params :: tuple()) ->
1367 ok
1368 convolutionParameterfv(Target :: enum(),
1370 Pname :: enum(),
1371 Params :: tuple()) ->
1372 ok
1373 convolutionParameteri(Target :: enum(),
1375 Pname :: enum(),
1376 Params :: tuple()) ->
1377 ok
1378 convolutionParameteriv(Target :: enum(),
1380 Pname :: enum(),
1381 Params :: tuple()) ->
1382 ok
1383 gl:convolutionParameter() sets the value of a convolution param‐
1385 eter.
1386 External documentation.
1388 copyBufferSubData(ReadTarget, WriteTarget, ReadOffset,
1390 WriteOffset, Size) ->
1391 ok
1392 Types:
1394 ReadTarget = WriteTarget = enum()
1396 ReadOffset = WriteOffset = Size = i()
1397 gl:copyBufferSubData/5 and glCopyNamedBufferSubData copy part of
1399 the data store attached to a source buffer object to the data
1400 store attached to a destination buffer object. The number of ba‐
1401 sic machine units indicated by Size is copied from the source at
1402 offset ReadOffset to the destination at WriteOffset. ReadOffset,
1403 WriteOffset and Size are in terms of basic machine units.
1404 External documentation.
1406 copyColorSubTable(Target :: enum(),
1408 Start :: i(),
1409 X :: i(),
1410 Y :: i(),
1411 Width :: i()) ->
1412 ok
1413 gl:copyColorSubTable/5 is used to respecify a contiguous portion
1415 of a color table previously defined using gl:colorTable/6. The
1416 pixels copied from the framebuffer replace the portion of the
1417 existing table from indices Start to start+x-1, inclusive. This
1418 region may not include any entries outside the range of the
1419 color table, as was originally specified. It is not an error to
1420 specify a subtexture with width of 0, but such a specification
1421 has no effect.
1422 External documentation.
1424 copyColorTable(Target :: enum(),
1426 Internalformat :: enum(),
1427 X :: i(),
1428 Y :: i(),
1429 Width :: i()) ->
1430 ok
1431 gl:copyColorTable/5 loads a color table with pixels from the
1433 current ?GL_READ_BUFFER (rather than from main memory, as is the
1434 case for gl:colorTable/6).
1435 External documentation.
1437 copyConvolutionFilter1D(Target :: enum(),
1439 Internalformat :: enum(),
1440 X :: i(),
1441 Y :: i(),
1442 Width :: i()) ->
1443 ok
1444 gl:copyConvolutionFilter1D/5 defines a one-dimensional convolu‐
1446 tion filter kernel with pixels from the current ?GL_READ_BUFFER
1447 (rather than from main memory, as is the case for gl:convolu‐
1448 tionFilter1D/6).
1449 External documentation.
1451 copyConvolutionFilter2D(Target :: enum(),
1453 Internalformat :: enum(),
1454 X :: i(),
1455 Y :: i(),
1456 Width :: i(),
1457 Height :: i()) ->
1458 ok
1459 gl:copyConvolutionFilter2D/6 defines a two-dimensional convolu‐
1461 tion filter kernel with pixels from the current ?GL_READ_BUFFER
1462 (rather than from main memory, as is the case for gl:convolu‐
1463 tionFilter2D/7).
1464 External documentation.
1466 copyImageSubData(SrcName, SrcTarget, SrcLevel, SrcX, SrcY, SrcZ,
1468 DstName, DstTarget, DstLevel, DstX, DstY, DstZ,
1469 SrcWidth, SrcHeight, SrcDepth) ->
1470 ok
1471 Types:
1473 SrcName = i()
1475 SrcTarget = enum()
1476 SrcLevel = SrcX = SrcY = SrcZ = DstName = i()
1477 DstTarget = enum()
1478 DstLevel = DstX = DstY = DstZ = SrcWidth = SrcHeight = Sr‐
1479 cDepth = i()
1480 gl:copyImageSubData/15 may be used to copy data from one image
1482 (i.e. texture or renderbuffer) to another. gl:copyImageSub‐
1483 Data/15 does not perform general-purpose conversions such as
1484 scaling, resizing, blending, color-space, or format conversions.
1485 It should be considered to operate in a manner similar to a CPU
1486 memcpy. CopyImageSubData can copy between images with different
1487 internal formats, provided the formats are compatible.
1488 External documentation.
1490 copyPixels(X :: i(),
1492 Y :: i(),
1493 Width :: i(),
1494 Height :: i(),
1495 Type :: enum()) ->
1496 ok
1497 gl:copyPixels/5 copies a screen-aligned rectangle of pixels from
1499 the specified frame buffer location to a region relative to the
1500 current raster position. Its operation is well defined only if
1501 the entire pixel source region is within the exposed portion of
1502 the window. Results of copies from outside the window, or from
1503 regions of the window that are not exposed, are hardware depen‐
1504 dent and undefined.
1505 External documentation.
1507 copyTexImage1D(Target, Level, Internalformat, X, Y, Width, Border) ->
1509 ok
1510 Types:
1512 Target = enum()
1514 Level = i()
1515 Internalformat = enum()
1516 X = Y = Width = Border = i()
1517 gl:copyTexImage1D/7 defines a one-dimensional texture image with
1519 pixels from the current ?GL_READ_BUFFER.
1520 External documentation.
1522 copyTexImage2D(Target, Level, Internalformat, X, Y, Width, Height,
1524 Border) ->
1525 ok
1526 Types:
1528 Target = enum()
1530 Level = i()
1531 Internalformat = enum()
1532 X = Y = Width = Height = Border = i()
1533 gl:copyTexImage2D/8 defines a two-dimensional texture image, or
1535 cube-map texture image with pixels from the current
1536 ?GL_READ_BUFFER.
1537 External documentation.
1539 copyTexSubImage1D(Target :: enum(),
1541 Level :: i(),
1542 Xoffset :: i(),
1543 X :: i(),
1544 Y :: i(),
1545 Width :: i()) ->
1546 ok
1547 gl:copyTexSubImage1D/6 and glCopyTextureSubImage1D replace a
1549 portion of a one-dimensional texture image with pixels from the
1550 current ?GL_READ_BUFFER (rather than from main memory, as is the
1551 case for gl:texSubImage1D/7). For gl:copyTexSubImage1D/6, the
1552 texture object that is bound to Target will be used for the
1553 process. For glCopyTextureSubImage1D, Texture tells which tex‐
1554 ture object should be used for the purpose of the call.
1555 External documentation.
1557 copyTexSubImage2D(Target, Level, Xoffset, Yoffset, X, Y, Width,
1559 Height) ->
1560 ok
1561 Types:
1563 Target = enum()
1565 Level = Xoffset = Yoffset = X = Y = Width = Height = i()
1566 gl:copyTexSubImage2D/8 and glCopyTextureSubImage2D replace a
1568 rectangular portion of a two-dimensional texture image, cube-map
1569 texture image, rectangular image, or a linear portion of a num‐
1570 ber of slices of a one-dimensional array texture with pixels
1571 from the current ?GL_READ_BUFFER (rather than from main memory,
1572 as is the case for gl:texSubImage2D/9).
1573 External documentation.
1575 copyTexSubImage3D(Target, Level, Xoffset, Yoffset, Zoffset, X, Y,
1577 Width, Height) ->
1578 ok
1579 Types:
1581 Target = enum()
1583 Level = Xoffset = Yoffset = Zoffset = X = Y = Width = Height
1584 = i()
1585 gl:copyTexSubImage3D/9 and glCopyTextureSubImage3D functions re‐
1587 place a rectangular portion of a three-dimensional or two-dimen‐
1588 sional array texture image with pixels from the current
1589 ?GL_READ_BUFFER (rather than from main memory, as is the case
1590 for gl:texSubImage3D/11).
1591 External documentation.
1593 createBuffers(N :: i()) -> [i()]
1595 gl:createBuffers/1 returns N previously unused buffer names in
1597 Buffers, each representing a new buffer object initialized as if
1598 it had been bound to an unspecified target.
1599 External documentation.
1601 createFramebuffers(N :: i()) -> [i()]
1603 gl:createFramebuffers/1 returns N previously unused framebuffer
1605 names in Framebuffers, each representing a new framebuffer ob‐
1606 ject initialized to the default state.
1607 External documentation.
1609 createProgram() -> i()
1611 gl:createProgram/0 creates an empty program object and returns a
1613 non-zero value by which it can be referenced. A program object
1614 is an object to which shader objects can be attached. This pro‐
1615 vides a mechanism to specify the shader objects that will be
1616 linked to create a program. It also provides a means for check‐
1617 ing the compatibility of the shaders that will be used to create
1618 a program (for instance, checking the compatibility between a
1619 vertex shader and a fragment shader). When no longer needed as
1620 part of a program object, shader objects can be detached.
1621 External documentation.
1623 createProgramObjectARB() -> i()
1625 No documentation available.
1627 createProgramPipelines(N :: i()) -> [i()]
1629 gl:createProgramPipelines/1 returns N previously unused program
1631 pipeline names in Pipelines, each representing a new program
1632 pipeline object initialized to the default state.
1633 External documentation.
1635 createQueries(Target :: enum(), N :: i()) -> [i()]
1637 gl:createQueries/2 returns N previously unused query object
1639 names in Ids, each representing a new query object with the
1640 specified Target.
1641 External documentation.
1643 createRenderbuffers(N :: i()) -> [i()]
1645 gl:createRenderbuffers/1 returns N previously unused render‐
1647 buffer object names in Renderbuffers, each representing a new
1648 renderbuffer object initialized to the default state.
1649 External documentation.
1651 createSamplers(N :: i()) -> [i()]
1653 gl:createSamplers/1 returns N previously unused sampler names in
1655 Samplers, each representing a new sampler object initialized to
1656 the default state.
1657 External documentation.
1659 createShader(Type :: enum()) -> i()
1661 gl:createShader/1 creates an empty shader object and returns a
1663 non-zero value by which it can be referenced. A shader object is
1664 used to maintain the source code strings that define a shader.
1665 ShaderType indicates the type of shader to be created. Five
1666 types of shader are supported. A shader of type ?GL_COM‐
1667 PUTE_SHADER is a shader that is intended to run on the program‐
1668 mable compute processor. A shader of type ?GL_VERTEX_SHADER is a
1669 shader that is intended to run on the programmable vertex pro‐
1670 cessor. A shader of type ?GL_TESS_CONTROL_SHADER is a shader
1671 that is intended to run on the programmable tessellation proces‐
1672 sor in the control stage. A shader of type ?GL_TESS_EVALUA‐
1673 TION_SHADER is a shader that is intended to run on the program‐
1674 mable tessellation processor in the evaluation stage. A shader
1675 of type ?GL_GEOMETRY_SHADER is a shader that is intended to run
1676 on the programmable geometry processor. A shader of type
1677 ?GL_FRAGMENT_SHADER is a shader that is intended to run on the
1678 programmable fragment processor.
1679 External documentation.
1681 createShaderObjectARB(ShaderType :: enum()) -> i()
1683 No documentation available.
1685 createShaderProgramv(Type :: enum(),
1687 Strings :: [unicode:chardata()]) ->
1688 i()
1689 No documentation available.
1691 createTextures(Target :: enum(), N :: i()) -> [i()]
1693 gl:createTextures/2 returns N previously unused texture names in
1695 Textures, each representing a new texture object of the dimen‐
1696 sionality and type specified by Target and initialized to the
1697 default values for that texture type.
1698 External documentation.
1700 createTransformFeedbacks(N :: i()) -> [i()]
1702 gl:createTransformFeedbacks/1 returns N previously unused trans‐
1704 form feedback object names in Ids, each representing a new
1705 transform feedback object initialized to the default state.
1706 External documentation.
1708 createVertexArrays(N :: i()) -> [i()]
1710 gl:createVertexArrays/1 returns N previously unused vertex array
1712 object names in Arrays, each representing a new vertex array ob‐
1713 ject initialized to the default state.
1714 External documentation.
1716 cullFace(Mode :: enum()) -> ok
1718 gl:cullFace/1 specifies whether front- or back-facing facets are
1720 culled (as specified by mode) when facet culling is enabled.
1721 Facet culling is initially disabled. To enable and disable facet
1722 culling, call the gl:enable/1 and gl:disable/1 commands with the
1723 argument ?GL_CULL_FACE. Facets include triangles, quadrilater‐
1724 als, polygons, and rectangles.
1725 External documentation.
1727 currentPaletteMatrixARB(Index :: i()) -> ok
1729 No documentation available.
1731 debugMessageControl(Source :: enum(),
1733 Type :: enum(),
1734 Severity :: enum(),
1735 Ids :: [i()],
1736 Enabled :: 0 | 1) ->
1737 ok
1738 gl:debugMessageControl/5 controls the reporting of debug mes‐
1740 sages generated by a debug context. The parameters Source, Type
1741 and Severity form a filter to select messages from the pool of
1742 potential messages generated by the GL.
1743 External documentation.
1745 debugMessageInsert(Source, Type, Id, Severity, Length, Buf) -> ok
1747 Types:
1749 Source = Type = enum()
1751 Id = i()
1752 Severity = enum()
1753 Length = i()
1754 Buf = string()
1755 gl:debugMessageInsert/6 inserts a user-supplied message into the
1757 debug output queue. Source specifies the source that will be
1758 used to classify the message and must be ?GL_DEBUG_SOURCE_APPLI‐
1759 CATION or ?GL_DEBUG_SOURCE_THIRD_PARTY. All other sources are
1760 reserved for use by the GL implementation. Type indicates the
1761 type of the message to be inserted and may be one of ?GL_DE‐
1762 BUG_TYPE_ERROR, ?GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR, ?GL_DE‐
1763 BUG_TYPE_UNDEFINED_BEHAVIOR, ?GL_DEBUG_TYPE_PORTABILITY, ?GL_DE‐
1764 BUG_TYPE_PERFORMANCE, ?GL_DEBUG_TYPE_MARKER, ?GL_DE‐
1765 BUG_TYPE_PUSH_GROUP, ?GL_DEBUG_TYPE_POP_GROUP, or ?GL_DE‐
1766 BUG_TYPE_OTHER. Severity indicates the severity of the message
1767 and may be ?GL_DEBUG_SEVERITY_LOW, ?GL_DEBUG_SEVERITY_MEDIUM,
1768 ?GL_DEBUG_SEVERITY_HIGH or ?GL_DEBUG_SEVERITY_NOTIFICATION. Id
1769 is available for application defined use and may be any value.
1770 This value will be recorded and used to identify the message.
1771 External documentation.
1773 deleteBuffers(Buffers :: [i()]) -> ok
1775 gl:deleteBuffers/1 deletes N buffer objects named by the ele‐
1777 ments of the array Buffers. After a buffer object is deleted, it
1778 has no contents, and its name is free for reuse (for example by
1779 gl:genBuffers/1). If a buffer object that is currently bound is
1780 deleted, the binding reverts to 0 (the absence of any buffer ob‐
1781 ject).
1782 External documentation.
1784 deleteFramebuffers(Framebuffers :: [i()]) -> ok
1786 gl:deleteFramebuffers/1 deletes the N framebuffer objects whose
1788 names are stored in the array addressed by Framebuffers. The
1789 name zero is reserved by the GL and is silently ignored, should
1790 it occur in Framebuffers, as are other unused names. Once a
1791 framebuffer object is deleted, its name is again unused and it
1792 has no attachments. If a framebuffer that is currently bound to
1793 one or more of the targets ?GL_DRAW_FRAMEBUFFER or
1794 ?GL_READ_FRAMEBUFFER is deleted, it is as though gl:bindFrame‐
1795 buffer/2 had been executed with the corresponding Target and
1796 Framebuffer zero.
1797 External documentation.
1799 deleteLists(List :: i(), Range :: i()) -> ok
1801 gl:deleteLists/2 causes a contiguous group of display lists to
1803 be deleted. List is the name of the first display list to be
1804 deleted, and Range is the number of display lists to delete. All
1805 display lists d with list<= d<= list+range-1 are deleted.
1806 External documentation.
1808 deleteNamedStringARB(Name :: string()) -> ok
1810 No documentation available.
1812 deleteObjectARB(Obj :: i()) -> ok
1814 No documentation available.
1816 deleteProgram(Program :: i()) -> ok
1818 gl:deleteProgram/1 frees the memory and invalidates the name as‐
1820 sociated with the program object specified by Program. This com‐
1821 mand effectively undoes the effects of a call to gl:createPro‐
1822 gram/0.
1823 External documentation.
1825 deleteProgramPipelines(Pipelines :: [i()]) -> ok
1827 gl:deleteProgramPipelines/1 deletes the N program pipeline ob‐
1829 jects whose names are stored in the array Pipelines. Unused
1830 names in Pipelines are ignored, as is the name zero. After a
1831 program pipeline object is deleted, its name is again unused and
1832 it has no contents. If program pipeline object that is currently
1833 bound is deleted, the binding for that object reverts to zero
1834 and no program pipeline object becomes current.
1835 External documentation.
1837 deleteProgramsARB(Programs :: [i()]) -> ok
1839 No documentation available.
1841 deleteQueries(Ids :: [i()]) -> ok
1843 gl:deleteQueries/1 deletes N query objects named by the elements
1845 of the array Ids. After a query object is deleted, it has no
1846 contents, and its name is free for reuse (for example by gl:gen‐
1847 Queries/1).
1848 External documentation.
1850 deleteRenderbuffers(Renderbuffers :: [i()]) -> ok
1852 gl:deleteRenderbuffers/1 deletes the N renderbuffer objects
1854 whose names are stored in the array addressed by Renderbuffers.
1855 The name zero is reserved by the GL and is silently ignored,
1856 should it occur in Renderbuffers, as are other unused names.
1857 Once a renderbuffer object is deleted, its name is again unused
1858 and it has no contents. If a renderbuffer that is currently
1859 bound to the target ?GL_RENDERBUFFER is deleted, it is as though
1860 gl:bindRenderbuffer/2 had been executed with a Target of
1861 ?GL_RENDERBUFFER and a Name of zero.
1862 External documentation.
1864 deleteSamplers(Samplers :: [i()]) -> ok
1866 gl:deleteSamplers/1 deletes N sampler objects named by the ele‐
1868 ments of the array Samplers. After a sampler object is deleted,
1869 its name is again unused. If a sampler object that is currently
1870 bound to a sampler unit is deleted, it is as though gl:bindSam‐
1871 pler/2 is called with unit set to the unit the sampler is bound
1872 to and sampler zero. Unused names in samplers are silently ig‐
1873 nored, as is the reserved name zero.
1874 External documentation.
1876 deleteShader(Shader :: i()) -> ok
1878 gl:deleteShader/1 frees the memory and invalidates the name as‐
1880 sociated with the shader object specified by Shader. This com‐
1881 mand effectively undoes the effects of a call to gl:create‐
1882 Shader/1.
1883 External documentation.
1885 deleteSync(Sync :: i()) -> ok
1887 gl:deleteSync/1 deletes the sync object specified by Sync. If
1889 the fence command corresponding to the specified sync object has
1890 completed, or if no gl:waitSync/3 or gl:clientWaitSync/3 com‐
1891 mands are blocking on Sync, the object is deleted immediately.
1892 Otherwise, Sync is flagged for deletion and will be deleted when
1893 it is no longer associated with any fence command and is no
1894 longer blocking any gl:waitSync/3 or gl:clientWaitSync/3 com‐
1895 mand. In either case, after gl:deleteSync/1 returns, the name
1896 Sync is invalid and can no longer be used to refer to the sync
1897 object.
1898 External documentation.
1900 deleteTextures(Textures :: [i()]) -> ok
1902 gl:deleteTextures/1 deletes N textures named by the elements of
1904 the array Textures. After a texture is deleted, it has no con‐
1905 tents or dimensionality, and its name is free for reuse (for ex‐
1906 ample by gl:genTextures/1). If a texture that is currently bound
1907 is deleted, the binding reverts to 0 (the default texture).
1908 External documentation.
1910 deleteTransformFeedbacks(Ids :: [i()]) -> ok
1912 gl:deleteTransformFeedbacks/1 deletes the N transform feedback
1914 objects whose names are stored in the array Ids. Unused names in
1915 Ids are ignored, as is the name zero. After a transform feedback
1916 object is deleted, its name is again unused and it has no con‐
1917 tents. If an active transform feedback object is deleted, its
1918 name immediately becomes unused, but the underlying object is
1919 not deleted until it is no longer active.
1920 External documentation.
1922 deleteVertexArrays(Arrays :: [i()]) -> ok
1924 gl:deleteVertexArrays/1 deletes N vertex array objects whose
1926 names are stored in the array addressed by Arrays. Once a vertex
1927 array object is deleted it has no contents and its name is again
1928 unused. If a vertex array object that is currently bound is
1929 deleted, the binding for that object reverts to zero and the de‐
1930 fault vertex array becomes current. Unused names in Arrays are
1931 silently ignored, as is the value zero.
1932 External documentation.
1934 depthBoundsEXT(Zmin :: clamp(), Zmax :: clamp()) -> ok
1936 No documentation available.
1938 depthFunc(Func :: enum()) -> ok
1940 gl:depthFunc/1 specifies the function used to compare each in‐
1942 coming pixel depth value with the depth value present in the
1943 depth buffer. The comparison is performed only if depth testing
1944 is enabled. (See gl:enable/1 and gl:disable/1 of
1945 ?GL_DEPTH_TEST.)
1946 External documentation.
1948 depthMask(Flag :: 0 | 1) -> ok
1950 gl:depthMask/1 specifies whether the depth buffer is enabled for
1952 writing. If Flag is ?GL_FALSE, depth buffer writing is disabled.
1953 Otherwise, it is enabled. Initially, depth buffer writing is en‐
1954 abled.
1955 External documentation.
1957 depthRange(Near_val :: clamp(), Far_val :: clamp()) -> ok
1959 depthRangef(N :: f(), F :: f()) -> ok
1961 After clipping and division by w, depth coordinates range from
1963 -1 to 1, corresponding to the near and far clipping planes.
1964 gl:depthRange/2 specifies a linear mapping of the normalized
1965 depth coordinates in this range to window depth coordinates. Re‐
1966 gardless of the actual depth buffer implementation, window coor‐
1967 dinate depth values are treated as though they range from 0
1968 through 1 (like color components). Thus, the values accepted by
1969 gl:depthRange/2 are both clamped to this range before they are
1970 accepted.
1971 External documentation.
1973 depthRangeArrayv(First :: i(), V :: [{f(), f()}]) -> ok
1975 No documentation available.
1977 depthRangeIndexed(Index :: i(), N :: f(), F :: f()) -> ok
1979 No documentation available.
1981 detachObjectARB(ContainerObj :: i(), AttachedObj :: i()) -> ok
1983 No documentation available.
1985 detachShader(Program :: i(), Shader :: i()) -> ok
1987 gl:detachShader/2 detaches the shader object specified by Shader
1989 from the program object specified by Program. This command can
1990 be used to undo the effect of the command gl:attachShader/2.
1991 External documentation.
1993 dispatchCompute(Num_groups_x :: i(),
1995 Num_groups_y :: i(),
1996 Num_groups_z :: i()) ->
1997 ok
1998 gl:dispatchCompute/3 launches one or more compute work groups.
2000 Each work group is processed by the active program object for
2001 the compute shader stage. While the individual shader invoca‐
2002 tions within a work group are executed as a unit, work groups
2003 are executed completely independently and in unspecified order.
2004 Num_groups_x, Num_groups_y and Num_groups_z specify the number
2005 of local work groups that will be dispatched in the X, Y and Z
2006 dimensions, respectively.
2007 External documentation.
2009 dispatchComputeGroupSizeARB(Num_groups_x, Num_groups_y,
2011 Num_groups_z, Group_size_x,
2012 Group_size_y, Group_size_z) ->
2013 ok
2014 Types:
2016 Num_groups_x = Num_groups_y = Num_groups_z = Group_size_x =
2018 Group_size_y = Group_size_z = i()
2019 No documentation available.
2021 dispatchComputeIndirect(Indirect :: i()) -> ok
2023 gl:dispatchComputeIndirect/1 launches one or more compute work
2025 groups using parameters stored in the buffer object currently
2026 bound to the ?GL_DISPATCH_INDIRECT_BUFFER target. Each work
2027 group is processed by the active program object for the compute
2028 shader stage. While the individual shader invocations within a
2029 work group are executed as a unit, work groups are executed com‐
2030 pletely independently and in unspecified order. Indirect con‐
2031 tains the offset into the data store of the buffer object bound
2032 to the ?GL_DISPATCH_INDIRECT_BUFFER target at which the parame‐
2033 ters are stored.
2034 External documentation.
2036 drawArrays(Mode :: enum(), First :: i(), Count :: i()) -> ok
2038 gl:drawArrays/3 specifies multiple geometric primitives with
2040 very few subroutine calls. Instead of calling a GL procedure to
2041 pass each individual vertex, normal, texture coordinate, edge
2042 flag, or color, you can prespecify separate arrays of vertices,
2043 normals, and colors and use them to construct a sequence of
2044 primitives with a single call to gl:drawArrays/3.
2045 External documentation.
2047 drawArraysIndirect(Mode :: enum(), Indirect :: offset() | mem()) ->
2049 ok
2050 gl:drawArraysIndirect/2 specifies multiple geometric primitives
2052 with very few subroutine calls. gl:drawArraysIndirect/2 behaves
2053 similarly to gl:drawArraysInstancedBaseInstance/5, execept that
2054 the parameters to gl:drawArraysInstancedBaseInstance/5 are
2055 stored in memory at the address given by Indirect.
2056 External documentation.
2058 drawArraysInstanced(Mode :: enum(),
2060 First :: i(),
2061 Count :: i(),
2062 Instancecount :: i()) ->
2063 ok
2064 No documentation available.
2066 drawArraysInstancedBaseInstance(Mode :: enum(),
2068 First :: i(),
2069 Count :: i(),
2070 Instancecount :: i(),
2071 Baseinstance :: i()) ->
2072 ok
2073 gl:drawArraysInstancedBaseInstance/5 behaves identically to
2075 gl:drawArrays/3 except that Instancecount instances of the range
2076 of elements are executed and the value of the internal counter
2077 InstanceID advances for each iteration. InstanceID is an inter‐
2078 nal 32-bit integer counter that may be read by a vertex shader
2079 as ?gl_InstanceID.
2080 External documentation.
2082 drawBuffer(Mode :: enum()) -> ok
2084 When colors are written to the frame buffer, they are written
2086 into the color buffers specified by gl:drawBuffer/1. One of the
2087 following values can be used for default framebuffer:
2088 External documentation.
2090 drawBuffers(Bufs :: [enum()]) -> ok
2092 gl:drawBuffers/1 and glNamedFramebufferDrawBuffers define an ar‐
2094 ray of buffers into which outputs from the fragment shader data
2095 will be written. If a fragment shader writes a value to one or
2096 more user defined output variables, then the value of each vari‐
2097 able will be written into the buffer specified at a location
2098 within Bufs corresponding to the location assigned to that user
2099 defined output. The draw buffer used for user defined outputs
2100 assigned to locations greater than or equal to N is implicitly
2101 set to ?GL_NONE and any data written to such an output is dis‐
2102 carded.
2103 External documentation.
2105 drawElements(Mode :: enum(),
2107 Count :: i(),
2108 Type :: enum(),
2109 Indices :: offset() | mem()) ->
2110 ok
2111 gl:drawElements/4 specifies multiple geometric primitives with
2113 very few subroutine calls. Instead of calling a GL function to
2114 pass each individual vertex, normal, texture coordinate, edge
2115 flag, or color, you can prespecify separate arrays of vertices,
2116 normals, and so on, and use them to construct a sequence of
2117 primitives with a single call to gl:drawElements/4.
2118 External documentation.
2120 drawElementsBaseVertex(Mode, Count, Type, Indices, Basevertex) ->
2122 ok
2123 Types:
2125 Mode = enum()
2127 Count = i()
2128 Type = enum()
2129 Indices = offset() | mem()
2130 Basevertex = i()
2131 gl:drawElementsBaseVertex/5 behaves identically to gl:drawEle‐
2133 ments/4 except that the ith element transferred by the corre‐
2134 sponding draw call will be taken from element Indices[i] + Ba‐
2135 severtex of each enabled array. If the resulting value is larger
2136 than the maximum value representable by Type, it is as if the
2137 calculation were upconverted to 32-bit unsigned integers (with
2138 wrapping on overflow conditions). The operation is undefined if
2139 the sum would be negative.
2140 External documentation.
2142 drawElementsIndirect(Mode :: enum(),
2144 Type :: enum(),
2145 Indirect :: offset() | mem()) ->
2146 ok
2147 gl:drawElementsIndirect/3 specifies multiple indexed geometric
2149 primitives with very few subroutine calls. gl:drawElementsIndi‐
2150 rect/3 behaves similarly to gl:drawElementsInstancedBaseVer‐
2151 texBaseInstance/7, execpt that the parameters to gl:drawEle‐
2152 mentsInstancedBaseVertexBaseInstance/7 are stored in memory at
2153 the address given by Indirect.
2154 External documentation.
2156 drawElementsInstanced(Mode, Count, Type, Indices, Instancecount) ->
2158 ok
2159 Types:
2161 Mode = enum()
2163 Count = i()
2164 Type = enum()
2165 Indices = offset() | mem()
2166 Instancecount = i()
2167 No documentation available.
2169 drawElementsInstancedBaseInstance(Mode, Count, Type, Indices,
2171 Instancecount, Baseinstance) ->
2172 ok
2173 Types:
2175 Mode = enum()
2177 Count = i()
2178 Type = enum()
2179 Indices = offset() | mem()
2180 Instancecount = Baseinstance = i()
2181 gl:drawElementsInstancedBaseInstance/6 behaves identically to
2183 gl:drawElements/4 except that Instancecount instances of the set
2184 of elements are executed and the value of the internal counter
2185 InstanceID advances for each iteration. InstanceID is an inter‐
2186 nal 32-bit integer counter that may be read by a vertex shader
2187 as ?gl_InstanceID.
2188 External documentation.
2190 drawElementsInstancedBaseVertex(Mode, Count, Type, Indices,
2192 Instancecount, Basevertex) ->
2193 ok
2194 Types:
2196 Mode = enum()
2198 Count = i()
2199 Type = enum()
2200 Indices = offset() | mem()
2201 Instancecount = Basevertex = i()
2202 gl:drawElementsInstancedBaseVertex/6 behaves identically to
2204 gl:drawElementsInstanced/5 except that the ith element trans‐
2205 ferred by the corresponding draw call will be taken from element
2206 Indices[i] + Basevertex of each enabled array. If the resulting
2207 value is larger than the maximum value representable by Type, it
2208 is as if the calculation were upconverted to 32-bit unsigned in‐
2209 tegers (with wrapping on overflow conditions). The operation is
2210 undefined if the sum would be negative.
2211 External documentation.
2213 drawElementsInstancedBaseVertexBaseInstance(Mode, Count, Type,
2215 Indices,
2216 Instancecount,
2217 Basevertex,
2218 Baseinstance) ->
2219 ok
2220 Types:
2222 Mode = enum()
2224 Count = i()
2225 Type = enum()
2226 Indices = offset() | mem()
2227 Instancecount = Basevertex = Baseinstance = i()
2228 gl:drawElementsInstancedBaseVertexBaseInstance/7 behaves identi‐
2230 cally to gl:drawElementsInstanced/5 except that the ith element
2231 transferred by the corresponding draw call will be taken from
2232 element Indices[i] + Basevertex of each enabled array. If the
2233 resulting value is larger than the maximum value representable
2234 by Type, it is as if the calculation were upconverted to 32-bit
2235 unsigned integers (with wrapping on overflow conditions). The
2236 operation is undefined if the sum would be negative.
2237 External documentation.
2239 drawPixels(Width :: i(),
2241 Height :: i(),
2242 Format :: enum(),
2243 Type :: enum(),
2244 Pixels :: offset() | mem()) ->
2245 ok
2246 gl:drawPixels/5 reads pixel data from memory and writes it into
2248 the frame buffer relative to the current raster position, pro‐
2249 vided that the raster position is valid. Use gl:rasterPos() or
2250 gl:windowPos() to set the current raster position; use gl:get()
2251 with argument ?GL_CURRENT_RASTER_POSITION_VALID to determine if
2252 the specified raster position is valid, and gl:get() with argu‐
2253 ment ?GL_CURRENT_RASTER_POSITION to query the raster position.
2254 External documentation.
2256 drawRangeElements(Mode, Start, End, Count, Type, Indices) -> ok
2258 Types:
2260 Mode = enum()
2262 Start = End = Count = i()
2263 Type = enum()
2264 Indices = offset() | mem()
2265 gl:drawRangeElements/6 is a restricted form of gl:drawEle‐
2267 ments/4. Mode, and Count match the corresponding arguments to
2268 gl:drawElements/4, with the additional constraint that all val‐
2269 ues in the arrays Count must lie between Start and End, inclu‐
2270 sive.
2271 External documentation.
2273 drawRangeElementsBaseVertex(Mode, Start, End, Count, Type,
2275 Indices, Basevertex) ->
2276 ok
2277 Types:
2279 Mode = enum()
2281 Start = End = Count = i()
2282 Type = enum()
2283 Indices = offset() | mem()
2284 Basevertex = i()
2285 gl:drawRangeElementsBaseVertex/7 is a restricted form of
2287 gl:drawElementsBaseVertex/5. Mode, Count and Basevertex match
2288 the corresponding arguments to gl:drawElementsBaseVertex/5, with
2289 the additional constraint that all values in the array Indices
2290 must lie between Start and End, inclusive, prior to adding Ba‐
2291 severtex. Index values lying outside the range [Start, End] are
2292 treated in the same way as gl:drawElementsBaseVertex/5. The ith
2293 element transferred by the corresponding draw call will be taken
2294 from element Indices[i] + Basevertex of each enabled array. If
2295 the resulting value is larger than the maximum value repre‐
2296 sentable by Type, it is as if the calculation were upconverted
2297 to 32-bit unsigned integers (with wrapping on overflow condi‐
2298 tions). The operation is undefined if the sum would be negative.
2299 External documentation.
2301 drawTransformFeedback(Mode :: enum(), Id :: i()) -> ok
2303 gl:drawTransformFeedback/2 draws primitives of a type specified
2305 by Mode using a count retrieved from the transform feedback
2306 specified by Id. Calling gl:drawTransformFeedback/2 is equiva‐
2307 lent to calling gl:drawArrays/3 with Mode as specified, First
2308 set to zero, and Count set to the number of vertices captured on
2309 vertex stream zero the last time transform feedback was active
2310 on the transform feedback object named by Id.
2311 External documentation.
2313 drawTransformFeedbackInstanced(Mode :: enum(),
2315 Id :: i(),
2316 Instancecount :: i()) ->
2317 ok
2318 No documentation available.
2320 drawTransformFeedbackStream(Mode :: enum(),
2322 Id :: i(),
2323 Stream :: i()) ->
2324 ok
2325 gl:drawTransformFeedbackStream/3 draws primitives of a type
2327 specified by Mode using a count retrieved from the transform
2328 feedback stream specified by Stream of the transform feedback
2329 object specified by Id. Calling gl:drawTransformFeedbackStream/3
2330 is equivalent to calling gl:drawArrays/3 with Mode as specified,
2331 First set to zero, and Count set to the number of vertices cap‐
2332 tured on vertex stream Stream the last time transform feedback
2333 was active on the transform feedback object named by Id.
2334 External documentation.
2336 drawTransformFeedbackStreamInstanced(Mode :: enum(),
2338 Id :: i(),
2339 Stream :: i(),
2340 Instancecount :: i()) ->
2341 ok
2342 No documentation available.
2344 edgeFlag(Flag :: 0 | 1) -> ok
2346 Each vertex of a polygon, separate triangle, or separate quadri‐
2348 lateral specified between a gl:'begin'/1/gl:'end'/0 pair is
2349 marked as the start of either a boundary or nonboundary edge. If
2350 the current edge flag is true when the vertex is specified, the
2351 vertex is marked as the start of a boundary edge. Otherwise, the
2352 vertex is marked as the start of a nonboundary edge. gl:edge‐
2353 Flag/1 sets the edge flag bit to ?GL_TRUE if Flag is ?GL_TRUE
2354 and to ?GL_FALSE otherwise.
2355 External documentation.
2357 edgeFlagPointer(Stride :: i(), Ptr :: offset() | mem()) -> ok
2359 gl:edgeFlagPointer/2 specifies the location and data format of
2361 an array of boolean edge flags to use when rendering. Stride
2362 specifies the byte stride from one edge flag to the next, allow‐
2363 ing vertices and attributes to be packed into a single array or
2364 stored in separate arrays.
2365 External documentation.
2367 edgeFlagv(X1 :: {Flag :: 0 | 1}) -> ok
2369 No documentation available.
2371 disable(Cap :: enum()) -> ok
2373 enable(Cap :: enum()) -> ok
2375 enablei(Target :: enum(), Index :: i()) -> ok
2377 gl:enable/1 and gl:disable/1 enable and disable various capabil‐
2379 ities. Use gl:isEnabled/1 or gl:get() to determine the current
2380 setting of any capability. The initial value for each capability
2381 with the exception of ?GL_DITHER and ?GL_MULTISAMPLE is
2382 ?GL_FALSE. The initial value for ?GL_DITHER and ?GL_MULTISAMPLE
2383 is ?GL_TRUE.
2384 External documentation.
2386 disableClientState(Cap :: enum()) -> ok
2388 enableClientState(Cap :: enum()) -> ok
2390 gl:enableClientState/1 and gl:disableClientState/1 enable or
2392 disable individual client-side capabilities. By default, all
2393 client-side capabilities are disabled. Both gl:enable‐
2394 ClientState/1 and gl:disableClientState/1 take a single argu‐
2395 ment, Cap, which can assume one of the following values:
2396 External documentation.
2398 disableVertexArrayAttrib(Vaobj :: i(), Index :: i()) -> ok
2400 enableVertexArrayAttrib(Vaobj :: i(), Index :: i()) -> ok
2402 No documentation available.
2404 disableVertexAttribArray(Index :: i()) -> ok
2406 enableVertexAttribArray(Index :: i()) -> ok
2408 gl:enableVertexAttribArray/1 and gl:enableVertexArrayAttrib/2
2410 enable the generic vertex attribute array specified by Index.
2411 gl:enableVertexAttribArray/1 uses currently bound vertex array
2412 object for the operation, whereas gl:enableVertexArrayAttrib/2
2413 updates state of the vertex array object with ID Vaobj.
2414 External documentation.
2416 disablei(Target :: enum(), Index :: i()) -> ok
2418 No documentation available.
2420 evalCoord1d(U :: f()) -> ok
2422 evalCoord1dv(X1 :: {U :: f()}) -> ok
2424 evalCoord1f(U :: f()) -> ok
2426 evalCoord1fv(X1 :: {U :: f()}) -> ok
2428 evalCoord2d(U :: f(), V :: f()) -> ok
2430 evalCoord2dv(X1 :: {U :: f(), V :: f()}) -> ok
2432 evalCoord2f(U :: f(), V :: f()) -> ok
2434 evalCoord2fv(X1 :: {U :: f(), V :: f()}) -> ok
2436 gl:evalCoord1() evaluates enabled one-dimensional maps at argu‐
2438 ment U. gl:evalCoord2() does the same for two-dimensional maps
2439 using two domain values, U and V. To define a map, call
2440 gl:map1() and gl:map2(); to enable and disable it, call gl:en‐
2441 able/1 and gl:disable/1.
2442 External documentation.
2444 evalMesh1(Mode :: enum(), I1 :: i(), I2 :: i()) -> ok
2446 evalMesh2(Mode :: enum(),
2448 I1 :: i(),
2449 I2 :: i(),
2450 J1 :: i(),
2451 J2 :: i()) ->
2452 ok
2453 gl:mapGrid() and gl:evalMesh() are used in tandem to efficiently
2455 generate and evaluate a series of evenly-spaced map domain val‐
2456 ues. gl:evalMesh() steps through the integer domain of a one- or
2457 two-dimensional grid, whose range is the domain of the evalua‐
2458 tion maps specified by gl:map1() and gl:map2(). Mode determines
2459 whether the resulting vertices are connected as points, lines,
2460 or filled polygons.
2461 External documentation.
2463 evalPoint1(I :: i()) -> ok
2465 evalPoint2(I :: i(), J :: i()) -> ok
2467 gl:mapGrid() and gl:evalMesh() are used in tandem to efficiently
2469 generate and evaluate a series of evenly spaced map domain val‐
2470 ues. gl:evalPoint() can be used to evaluate a single grid point
2471 in the same gridspace that is traversed by gl:evalMesh(). Call‐
2472 ing gl:evalPoint1/1 is equivalent to calling glEvalCoord1( i.ð
2473 u+u 1 ); where ð u=(u 2-u 1)/n
2474 External documentation.
2476 evaluateDepthValuesARB() -> ok
2478 No documentation available.
2480 feedbackBuffer(Size :: i(), Type :: enum(), Buffer :: mem()) -> ok
2482 The gl:feedbackBuffer/3 function controls feedback. Feedback,
2484 like selection, is a GL mode. The mode is selected by calling
2485 gl:renderMode/1 with ?GL_FEEDBACK. When the GL is in feedback
2486 mode, no pixels are produced by rasterization. Instead, informa‐
2487 tion about primitives that would have been rasterized is fed
2488 back to the application using the GL.
2489 External documentation.
2491 fenceSync(Condition :: enum(), Flags :: i()) -> i()
2493 gl:fenceSync/2 creates a new fence sync object, inserts a fence
2495 command into the GL command stream and associates it with that
2496 sync object, and returns a non-zero name corresponding to the
2497 sync object.
2498 External documentation.
2500 finish() -> ok
2502 gl:finish/0 does not return until the effects of all previously
2504 called GL commands are complete. Such effects include all
2505 changes to GL state, all changes to connection state, and all
2506 changes to the frame buffer contents.
2507 External documentation.
2509 flush() -> ok
2511 Different GL implementations buffer commands in several differ‐
2513 ent locations, including network buffers and the graphics accel‐
2514 erator itself. gl:flush/0 empties all of these buffers, causing
2515 all issued commands to be executed as quickly as they are ac‐
2516 cepted by the actual rendering engine. Though this execution may
2517 not be completed in any particular time period, it does complete
2518 in finite time.
2519 External documentation.
2521 flushMappedBufferRange(Target :: enum(),
2523 Offset :: i(),
2524 Length :: i()) ->
2525 ok
2526 gl:flushMappedBufferRange/3 indicates that modifications have
2528 been made to a range of a mapped buffer object. The buffer ob‐
2529 ject must previously have been mapped with the ?GL_MAP_FLUSH_EX‐
2530 PLICIT_BIT flag.
2531 External documentation.
2533 flushMappedNamedBufferRange(Buffer :: i(),
2535 Offset :: i(),
2536 Length :: i()) ->
2537 ok
2538 No documentation available.
2540 fogf(Pname :: enum(), Param :: f()) -> ok
2542 fogfv(Pname :: enum(), Params :: tuple()) -> ok
2544 fogi(Pname :: enum(), Param :: i()) -> ok
2546 fogiv(Pname :: enum(), Params :: tuple()) -> ok
2548 Fog is initially disabled. While enabled, fog affects rasterized
2550 geometry, bitmaps, and pixel blocks, but not buffer clear opera‐
2551 tions. To enable and disable fog, call gl:enable/1 and gl:dis‐
2552 able/1 with argument ?GL_FOG.
2553 External documentation.
2555 fogCoordd(Coord :: f()) -> ok
2557 fogCoorddv(X1 :: {Coord :: f()}) -> ok
2559 fogCoordf(Coord :: f()) -> ok
2561 fogCoordfv(X1 :: {Coord :: f()}) -> ok
2563 gl:fogCoord() specifies the fog coordinate that is associated
2565 with each vertex and the current raster position. The value
2566 specified is interpolated and used in computing the fog color
2567 (see gl:fog()).
2568 External documentation.
2570 fogCoordPointer(Type :: enum(),
2572 Stride :: i(),
2573 Pointer :: offset() | mem()) ->
2574 ok
2575 gl:fogCoordPointer/3 specifies the location and data format of
2577 an array of fog coordinates to use when rendering. Type speci‐
2578 fies the data type of each fog coordinate, and Stride specifies
2579 the byte stride from one fog coordinate to the next, allowing
2580 vertices and attributes to be packed into a single array or
2581 stored in separate arrays.
2582 External documentation.
2584 framebufferParameteri(Target :: enum(),
2586 Pname :: enum(),
2587 Param :: i()) ->
2588 ok
2589 No documentation available.
2591 framebufferRenderbuffer(Target, Attachment, Renderbuffertarget,
2593 Renderbuffer) ->
2594 ok
2595 Types:
2597 Target = Attachment = Renderbuffertarget = enum()
2599 Renderbuffer = i()
2600 gl:framebufferRenderbuffer/4 and glNamedFramebufferRenderbuffer
2602 attaches a renderbuffer as one of the logical buffers of the
2603 specified framebuffer object. Renderbuffers cannot be attached
2604 to the default draw and read framebuffer, so they are not valid
2605 targets of these commands.
2606 External documentation.
2608 framebufferTexture(Target :: enum(),
2610 Attachment :: enum(),
2611 Texture :: i(),
2612 Level :: i()) ->
2613 ok
2614 framebufferTexture1D(Target :: enum(),
2616 Attachment :: enum(),
2617 Textarget :: enum(),
2618 Texture :: i(),
2619 Level :: i()) ->
2620 ok
2621 framebufferTexture2D(Target :: enum(),
2623 Attachment :: enum(),
2624 Textarget :: enum(),
2625 Texture :: i(),
2626 Level :: i()) ->
2627 ok
2628 framebufferTexture3D(Target, Attachment, Textarget, Texture,
2630 Level, Zoffset) ->
2631 ok
2632 framebufferTextureFaceARB(Target :: enum(),
2634 Attachment :: enum(),
2635 Texture :: i(),
2636 Level :: i(),
2637 Face :: enum()) ->
2638 ok
2639 framebufferTextureLayer(Target :: enum(),
2641 Attachment :: enum(),
2642 Texture :: i(),
2643 Level :: i(),
2644 Layer :: i()) ->
2645 ok
2646 These commands attach a selected mipmap level or image of a tex‐
2648 ture object as one of the logical buffers of the specified
2649 framebuffer object. Textures cannot be attached to the default
2650 draw and read framebuffer, so they are not valid targets of
2651 these commands.
2652 External documentation.
2654 frontFace(Mode :: enum()) -> ok
2656 In a scene composed entirely of opaque closed surfaces, back-
2658 facing polygons are never visible. Eliminating these invisible
2659 polygons has the obvious benefit of speeding up the rendering of
2660 the image. To enable and disable elimination of back-facing
2661 polygons, call gl:enable/1 and gl:disable/1 with argument
2662 ?GL_CULL_FACE.
2663 External documentation.
2665 frustum(Left :: f(),
2667 Right :: f(),
2668 Bottom :: f(),
2669 Top :: f(),
2670 Near_val :: f(),
2671 Far_val :: f()) ->
2672 ok
2673 gl:frustum/6 describes a perspective matrix that produces a per‐
2675 spective projection. The current matrix (see gl:matrixMode/1) is
2676 multiplied by this matrix and the result replaces the current
2677 matrix, as if gl:multMatrix() were called with the following ma‐
2678 trix as its argument:
2679 External documentation.
2681 genBuffers(N :: i()) -> [i()]
2683 gl:genBuffers/1 returns N buffer object names in Buffers. There
2685 is no guarantee that the names form a contiguous set of inte‐
2686 gers; however, it is guaranteed that none of the returned names
2687 was in use immediately before the call to gl:genBuffers/1.
2688 External documentation.
2690 genFramebuffers(N :: i()) -> [i()]
2692 gl:genFramebuffers/1 returns N framebuffer object names in Ids.
2694 There is no guarantee that the names form a contiguous set of
2695 integers; however, it is guaranteed that none of the returned
2696 names was in use immediately before the call to gl:genFrame‐
2697 buffers/1.
2698 External documentation.
2700 genLists(Range :: i()) -> i()
2702 gl:genLists/1 has one argument, Range. It returns an integer n
2704 such that Range contiguous empty display lists, named n, n+1,
2705 ..., n+range-1, are created. If Range is 0, if there is no group
2706 of Range contiguous names available, or if any error is gener‐
2707 ated, no display lists are generated, and 0 is returned.
2708 External documentation.
2710 genProgramPipelines(N :: i()) -> [i()]
2712 gl:genProgramPipelines/1 returns N previously unused program
2714 pipeline object names in Pipelines. These names are marked as
2715 used, for the purposes of gl:genProgramPipelines/1 only, but
2716 they acquire program pipeline state only when they are first
2717 bound.
2718 External documentation.
2720 genProgramsARB(N :: i()) -> [i()]
2722 No documentation available.
2724 genQueries(N :: i()) -> [i()]
2726 gl:genQueries/1 returns N query object names in Ids. There is no
2728 guarantee that the names form a contiguous set of integers; how‐
2729 ever, it is guaranteed that none of the returned names was in
2730 use immediately before the call to gl:genQueries/1.
2731 External documentation.
2733 genRenderbuffers(N :: i()) -> [i()]
2735 gl:genRenderbuffers/1 returns N renderbuffer object names in
2737 Renderbuffers. There is no guarantee that the names form a con‐
2738 tiguous set of integers; however, it is guaranteed that none of
2739 the returned names was in use immediately before the call to
2740 gl:genRenderbuffers/1.
2741 External documentation.
2743 genSamplers(Count :: i()) -> [i()]
2745 gl:genSamplers/1 returns N sampler object names in Samplers.
2747 There is no guarantee that the names form a contiguous set of
2748 integers; however, it is guaranteed that none of the returned
2749 names was in use immediately before the call to gl:genSam‐
2750 plers/1.
2751 External documentation.
2753 genTextures(N :: i()) -> [i()]
2755 gl:genTextures/1 returns N texture names in Textures. There is
2757 no guarantee that the names form a contiguous set of integers;
2758 however, it is guaranteed that none of the returned names was in
2759 use immediately before the call to gl:genTextures/1.
2760 External documentation.
2762 genTransformFeedbacks(N :: i()) -> [i()]
2764 gl:genTransformFeedbacks/1 returns N previously unused transform
2766 feedback object names in Ids. These names are marked as used,
2767 for the purposes of gl:genTransformFeedbacks/1 only, but they
2768 acquire transform feedback state only when they are first bound.
2769 External documentation.
2771 genVertexArrays(N :: i()) -> [i()]
2773 gl:genVertexArrays/1 returns N vertex array object names in Ar‐
2775 rays. There is no guarantee that the names form a contiguous set
2776 of integers; however, it is guaranteed that none of the returned
2777 names was in use immediately before the call to gl:genVertexAr‐
2778 rays/1.
2779 External documentation.
2781 generateMipmap(Target :: enum()) -> ok
2783 gl:generateMipmap/1 and gl:generateTextureMipmap/1 generates
2785 mipmaps for the specified texture object. For gl:gener‐
2786 ateMipmap/1, the texture object that is bound to Target. For
2787 gl:generateTextureMipmap/1, Texture is the name of the texture
2788 object.
2789 External documentation.
2791 generateTextureMipmap(Texture :: i()) -> ok
2793 No documentation available.
2795 getBooleani_v(Target :: enum(), Index :: i()) -> [0 | 1]
2797 getBooleanv(Pname :: enum()) -> [0 | 1]
2799 getDoublei_v(Target :: enum(), Index :: i()) -> [f()]
2801 getDoublev(Pname :: enum()) -> [f()]
2803 getFloati_v(Target :: enum(), Index :: i()) -> [f()]
2805 getFloatv(Pname :: enum()) -> [f()]
2807 getInteger64i_v(Target :: enum(), Index :: i()) -> [i()]
2809 getInteger64v(Pname :: enum()) -> [i()]
2811 getIntegeri_v(Target :: enum(), Index :: i()) -> [i()]
2813 getIntegerv(Pname :: enum()) -> [i()]
2815 These commands return values for simple state variables in GL.
2817 Pname is a symbolic constant indicating the state variable to be
2818 returned, and Data is a pointer to an array of the indicated
2819 type in which to place the returned data.
2820 External documentation.
2822 getActiveAttrib(Program :: i(), Index :: i(), BufSize :: i()) ->
2824 {Size :: i(), Type :: enum(), Name :: string()}
2825 gl:getActiveAttrib/3 returns information about an active attri‐
2827 bute variable in the program object specified by Program. The
2828 number of active attributes can be obtained by calling gl:get‐
2829 Program() with the value ?GL_ACTIVE_ATTRIBUTES. A value of 0 for
2830 Index selects the first active attribute variable. Permissible
2831 values for Index range from zero to the number of active attri‐
2832 bute variables minus one.
2833 External documentation.
2835 getActiveAttribARB(ProgramObj :: i(),
2837 Index :: i(),
2838 MaxLength :: i()) ->
2839 {Size :: i(),
2840 Type :: enum(),
2841 Name :: string()}
2842 No documentation available.
2844 getActiveSubroutineName(Program :: i(),
2846 Shadertype :: enum(),
2847 Index :: i(),
2848 Bufsize :: i()) ->
2849 string()
2850 gl:getActiveSubroutineName/4 queries the name of an active
2852 shader subroutine uniform from the program object given in Pro‐
2853 gram. Index specifies the index of the shader subroutine uniform
2854 within the shader stage given by Stage, and must between zero
2855 and the value of ?GL_ACTIVE_SUBROUTINES minus one for the shader
2856 stage.
2857 External documentation.
2859 getActiveSubroutineUniformName(Program :: i(),
2861 Shadertype :: enum(),
2862 Index :: i(),
2863 Bufsize :: i()) ->
2864 string()
2865 gl:getActiveSubroutineUniformName/4 retrieves the name of an ac‐
2867 tive shader subroutine uniform. Program contains the name of the
2868 program containing the uniform. Shadertype specifies the stage
2869 for which the uniform location, given by Index, is valid. Index
2870 must be between zero and the value of ?GL_ACTIVE_SUBROUTINE_UNI‐
2871 FORMS minus one for the shader stage.
2872 External documentation.
2874 getActiveUniform(Program :: i(), Index :: i(), BufSize :: i()) ->
2876 {Size :: i(),
2877 Type :: enum(),
2878 Name :: string()}
2879 gl:getActiveUniform/3 returns information about an active uni‐
2881 form variable in the program object specified by Program. The
2882 number of active uniform variables can be obtained by calling
2883 gl:getProgram() with the value ?GL_ACTIVE_UNIFORMS. A value of 0
2884 for Index selects the first active uniform variable. Permissible
2885 values for Index range from zero to the number of active uniform
2886 variables minus one.
2887 External documentation.
2889 getActiveUniformARB(ProgramObj :: i(),
2891 Index :: i(),
2892 MaxLength :: i()) ->
2893 {Size :: i(),
2894 Type :: enum(),
2895 Name :: string()}
2896 No documentation available.
2898 getActiveUniformBlockiv(Program :: i(),
2900 UniformBlockIndex :: i(),
2901 Pname :: enum(),
2902 Params :: mem()) ->
2903 ok
2904 gl:getActiveUniformBlockiv/4 retrieves information about an ac‐
2906 tive uniform block within Program.
2907 External documentation.
2909 getActiveUniformBlockName(Program :: i(),
2911 UniformBlockIndex :: i(),
2912 BufSize :: i()) ->
2913 string()
2914 gl:getActiveUniformBlockName/3 retrieves the name of the active
2916 uniform block at UniformBlockIndex within Program.
2917 External documentation.
2919 getActiveUniformName(Program :: i(),
2921 UniformIndex :: i(),
2922 BufSize :: i()) ->
2923 string()
2924 gl:getActiveUniformName/3 returns the name of the active uniform
2926 at UniformIndex within Program. If UniformName is not NULL, up
2927 to BufSize characters (including a nul-terminator) will be writ‐
2928 ten into the array whose address is specified by UniformName. If
2929 Length is not NULL, the number of characters that were (or would
2930 have been) written into UniformName (not including the nul-ter‐
2931 minator) will be placed in the variable whose address is speci‐
2932 fied in Length. If Length is NULL, no length is returned. The
2933 length of the longest uniform name in Program is given by the
2934 value of ?GL_ACTIVE_UNIFORM_MAX_LENGTH, which can be queried
2935 with gl:getProgram().
2936 External documentation.
2938 getActiveUniformsiv(Program :: i(),
2940 UniformIndices :: [i()],
2941 Pname :: enum()) ->
2942 [i()]
2943 No documentation available.
2945 getAttachedObjectsARB(ContainerObj :: i(), MaxCount :: i()) ->
2947 [i()]
2948 No documentation available.
2950 getAttachedShaders(Program :: i(), MaxCount :: i()) -> [i()]
2952 gl:getAttachedShaders/2 returns the names of the shader objects
2954 attached to Program. The names of shader objects that are at‐
2955 tached to Program will be returned in Shaders. The actual number
2956 of shader names written into Shaders is returned in Count. If no
2957 shader objects are attached to Program, Count is set to 0. The
2958 maximum number of shader names that may be returned in Shaders
2959 is specified by MaxCount.
2960 External documentation.
2962 getAttribLocation(Program :: i(), Name :: string()) -> i()
2964 gl:getAttribLocation/2 queries the previously linked program ob‐
2966 ject specified by Program for the attribute variable specified
2967 by Name and returns the index of the generic vertex attribute
2968 that is bound to that attribute variable. If Name is a matrix
2969 attribute variable, the index of the first column of the matrix
2970 is returned. If the named attribute variable is not an active
2971 attribute in the specified program object or if Name starts with
2972 the reserved prefix "gl_", a value of -1 is returned.
2973 External documentation.
2975 getAttribLocationARB(ProgramObj :: i(), Name :: string()) -> i()
2977 No documentation available.
2979 getBufferParameterivARB(Target :: enum(), Pname :: enum()) ->
2981 [i()]
2982 No documentation available.
2984 getBufferParameteri64v(Target :: enum(), Pname :: enum()) -> [i()]
2986 No documentation available.
2988 getBufferParameteriv(Target :: enum(), Pname :: enum()) -> i()
2990 gl:getBufferParameteriv/2 returns in Data a selected parameter
2992 of the buffer object specified by Target.
2993 External documentation.
2995 getBufferSubData(Target :: enum(),
2997 Offset :: i(),
2998 Size :: i(),
2999 Data :: mem()) ->
3000 ok
3001 gl:getBufferSubData/4 and glGetNamedBufferSubData return some or
3003 all of the data contents of the data store of the specified buf‐
3004 fer object. Data starting at byte offset Offset and extending
3005 for Size bytes is copied from the buffer object's data store to
3006 the memory pointed to by Data. An error is thrown if the buffer
3007 object is currently mapped, or if Offset and Size together de‐
3008 fine a range beyond the bounds of the buffer object's data
3009 store.
3010 External documentation.
3012 getClipPlane(Plane :: enum()) -> {f(), f(), f(), f()}
3014 gl:getClipPlane/1 returns in Equation the four coefficients of
3016 the plane equation for Plane.
3017 External documentation.
3019 getColorTable(Target :: enum(),
3021 Format :: enum(),
3022 Type :: enum(),
3023 Table :: mem()) ->
3024 ok
3025 gl:getColorTable/4 returns in Table the contents of the color
3027 table specified by Target. No pixel transfer operations are per‐
3028 formed, but pixel storage modes that are applicable to gl:read‐
3029 Pixels/7 are performed.
3030 External documentation.
3032 getColorTableParameterfv(Target :: enum(), Pname :: enum()) ->
3034 {f(), f(), f(), f()}
3035 getColorTableParameteriv(Target :: enum(), Pname :: enum()) ->
3037 {i(), i(), i(), i()}
3038 Returns parameters specific to color table Target.
3040 External documentation.
3042 getCompressedTexImage(Target :: enum(), Lod :: i(), Img :: mem()) ->
3044 ok
3045 gl:getCompressedTexImage/3 and glGetnCompressedTexImage return
3047 the compressed texture image associated with Target and Lod into
3048 Pixels. glGetCompressedTextureImage serves the same purpose, but
3049 instead of taking a texture target, it takes the ID of the tex‐
3050 ture object. Pixels should be an array of BufSize bytes for
3051 glGetnCompresedTexImage and glGetCompressedTextureImage func‐
3052 tions, and of ?GL_TEXTURE_COMPRESSED_IMAGE_SIZE bytes in case of
3053 gl:getCompressedTexImage/3. If the actual data takes less space
3054 than BufSize, the remaining bytes will not be touched. Target
3055 specifies the texture target, to which the texture the data the
3056 function should extract the data from is bound to. Lod specifies
3057 the level-of-detail number of the desired image.
3058 External documentation.
3060 getCompressedTexImageARB(Target :: enum(),
3062 Level :: i(),
3063 Img :: mem()) ->
3064 ok
3065 No documentation available.
3067 getConvolutionFilter(Target :: enum(),
3069 Format :: enum(),
3070 Type :: enum(),
3071 Image :: mem()) ->
3072 ok
3073 gl:getConvolutionFilter/4 returns the current 1D or 2D convolu‐
3075 tion filter kernel as an image. The one- or two-dimensional im‐
3076 age is placed in Image according to the specifications in Format
3077 and Type. No pixel transfer operations are performed on this im‐
3078 age, but the relevant pixel storage modes are applied.
3079 External documentation.
3081 getConvolutionParameterfv(Target :: enum(), Pname :: enum()) ->
3083 {f(), f(), f(), f()}
3084 getConvolutionParameteriv(Target :: enum(), Pname :: enum()) ->
3086 {i(), i(), i(), i()}
3087 gl:getConvolutionParameter() retrieves convolution parameters.
3089 Target determines which convolution filter is queried. Pname de‐
3090 termines which parameter is returned:
3091 External documentation.
3093 getDebugMessageLog(Count :: i(), BufSize :: i()) ->
3095 {i(),
3096 Sources :: [enum()],
3097 Types :: [enum()],
3098 Ids :: [i()],
3099 Severities :: [enum()],
3100 MessageLog :: string()}
3101 gl:getDebugMessageLog/2 retrieves messages from the debug mes‐
3103 sage log. A maximum of Count messages are retrieved from the
3104 log. If Sources is not NULL then the source of each message is
3105 written into up to Count elements of the array. If Types is not
3106 NULL then the type of each message is written into up to Count
3107 elements of the array. If Id is not NULL then the identifier of
3108 each message is written into up to Count elements of the array.
3109 If Severities is not NULL then the severity of each message is
3110 written into up to Count elements of the array. If Lengths is
3111 not NULL then the length of each message is written into up to
3112 Count elements of the array.
3113 External documentation.
3115 getError() -> enum()
3117 gl:getError/0 returns the value of the error flag. Each de‐
3119 tectable error is assigned a numeric code and symbolic name.
3120 When an error occurs, the error flag is set to the appropriate
3121 error code value. No other errors are recorded until gl:getEr‐
3122 ror/0 is called, the error code is returned, and the flag is re‐
3123 set to ?GL_NO_ERROR. If a call to gl:getError/0 returns
3124 ?GL_NO_ERROR, there has been no detectable error since the last
3125 call to gl:getError/0, or since the GL was initialized.
3126 External documentation.
3128 getFragDataIndex(Program :: i(), Name :: string()) -> i()
3130 gl:getFragDataIndex/2 returns the index of the fragment color to
3132 which the variable Name was bound when the program object Pro‐
3133 gram was last linked. If Name is not a varying out variable of
3134 Program, or if an error occurs, -1 will be returned.
3135 External documentation.
3137 getFragDataLocation(Program :: i(), Name :: string()) -> i()
3139 gl:getFragDataLocation/2 retrieves the assigned color number
3141 binding for the user-defined varying out variable Name for pro‐
3142 gram Program. Program must have previously been linked. Name
3143 must be a null-terminated string. If Name is not the name of an
3144 active user-defined varying out fragment shader variable within
3145 Program, -1 will be returned.
3146 External documentation.
3148 getFramebufferAttachmentParameteriv(Target :: enum(),
3150 Attachment :: enum(),
3151 Pname :: enum()) ->
3152 i()
3153 gl:getFramebufferAttachmentParameteriv/3 and glGetNamedFrame‐
3155 bufferAttachmentParameteriv return parameters of attachments of
3156 a specified framebuffer object.
3157 External documentation.
3159 getFramebufferParameteriv(Target :: enum(), Pname :: enum()) ->
3161 i()
3162 gl:getFramebufferParameteriv/2 and glGetNamedFramebufferParame‐
3164 teriv query parameters of a specified framebuffer object.
3165 External documentation.
3167 getGraphicsResetStatus() -> enum()
3169 Certain events can result in a reset of the GL context. Such a
3171 reset causes all context state to be lost and requires the ap‐
3172 plication to recreate all objects in the affected context.
3173 External documentation.
3175 getHandleARB(Pname :: enum()) -> i()
3177 No documentation available.
3179 getHistogram(Target :: enum(),
3181 Reset :: 0 | 1,
3182 Format :: enum(),
3183 Type :: enum(),
3184 Values :: mem()) ->
3185 ok
3186 gl:getHistogram/5 returns the current histogram table as a one-
3188 dimensional image with the same width as the histogram. No pixel
3189 transfer operations are performed on this image, but pixel stor‐
3190 age modes that are applicable to 1D images are honored.
3191 External documentation.
3193 getHistogramParameterfv(Target :: enum(), Pname :: enum()) ->
3195 {f()}
3196 getHistogramParameteriv(Target :: enum(), Pname :: enum()) ->
3198 {i()}
3199 gl:getHistogramParameter() is used to query parameter values for
3201 the current histogram or for a proxy. The histogram state infor‐
3202 mation may be queried by calling gl:getHistogramParameter() with
3203 a Target of ?GL_HISTOGRAM (to obtain information for the current
3204 histogram table) or ?GL_PROXY_HISTOGRAM (to obtain information
3205 from the most recent proxy request) and one of the following
3206 values for the Pname argument:
3207 External documentation.
3209 getImageHandleARB(Texture :: i(),
3211 Level :: i(),
3212 Layered :: 0 | 1,
3213 Layer :: i(),
3214 Format :: enum()) ->
3215 i()
3216 No documentation available.
3218 getInfoLogARB(Obj :: i(), MaxLength :: i()) -> string()
3220 No documentation available.
3222 getInternalformativ(Target :: enum(),
3224 Internalformat :: enum(),
3225 Pname :: enum(),
3226 BufSize :: i()) ->
3227 [i()]
3228 gl:getInternalformativ/4 and gl:getInternalformati64v/4 retrieve
3230 information about implementation-dependent support for internal
3231 formats. Target indicates the target with which the internal
3232 format will be used and must be one of ?GL_RENDERBUFFER,
3233 ?GL_TEXTURE_2D_MULTISAMPLE, or ?GL_TEXTURE_2D_MULTISAMPLE_ARRAY,
3234 corresponding to usage as a renderbuffer, two-dimensional multi‐
3235 sample texture or two-dimensional multisample array texture, re‐
3236 spectively.
3237 External documentation.
3239 getInternalformati64v(Target :: enum(),
3241 Internalformat :: enum(),
3242 Pname :: enum(),
3243 BufSize :: i()) ->
3244 [i()]
3245 No documentation available.
3247 getLightfv(Light :: enum(), Pname :: enum()) ->
3249 {f(), f(), f(), f()}
3250 getLightiv(Light :: enum(), Pname :: enum()) ->
3252 {i(), i(), i(), i()}
3253 gl:getLight() returns in Params the value or values of a light
3255 source parameter. Light names the light and is a symbolic name
3256 of the form ?GL_LIGHT i where i ranges from 0 to the value of
3257 ?GL_MAX_LIGHTS - 1. ?GL_MAX_LIGHTS is an implementation depen‐
3258 dent constant that is greater than or equal to eight. Pname
3259 specifies one of ten light source parameters, again by symbolic
3260 name.
3261 External documentation.
3263 getMapdv(Target :: enum(), Query :: enum(), V :: mem()) -> ok
3265 getMapfv(Target :: enum(), Query :: enum(), V :: mem()) -> ok
3267 getMapiv(Target :: enum(), Query :: enum(), V :: mem()) -> ok
3269 gl:map1() and gl:map2() define evaluators. gl:getMap() returns
3271 evaluator parameters. Target chooses a map, Query selects a spe‐
3272 cific parameter, and V points to storage where the values will
3273 be returned.
3274 External documentation.
3276 getMaterialfv(Face :: enum(), Pname :: enum()) ->
3278 {f(), f(), f(), f()}
3279 getMaterialiv(Face :: enum(), Pname :: enum()) ->
3281 {i(), i(), i(), i()}
3282 gl:getMaterial() returns in Params the value or values of param‐
3284 eter Pname of material Face. Six parameters are defined:
3285 External documentation.
3287 getMinmax(Target :: enum(),
3289 Reset :: 0 | 1,
3290 Format :: enum(),
3291 Types :: enum(),
3292 Values :: mem()) ->
3293 ok
3294 gl:getMinmax/5 returns the accumulated minimum and maximum pixel
3296 values (computed on a per-component basis) in a one-dimensional
3297 image of width 2. The first set of return values are the minima,
3298 and the second set of return values are the maxima. The format
3299 of the return values is determined by Format, and their type is
3300 determined by Types.
3301 External documentation.
3303 getMinmaxParameterfv(Target :: enum(), Pname :: enum()) -> {f()}
3305 getMinmaxParameteriv(Target :: enum(), Pname :: enum()) -> {i()}
3307 gl:getMinmaxParameter() retrieves parameters for the current
3309 minmax table by setting Pname to one of the following values:
3310 External documentation.
3312 getMultisamplefv(Pname :: enum(), Index :: i()) -> {f(), f()}
3314 gl:getMultisamplefv/2 queries the location of a given sample.
3316 Pname specifies the sample parameter to retrieve and must be
3317 ?GL_SAMPLE_POSITION. Index corresponds to the sample for which
3318 the location should be returned. The sample location is returned
3319 as two floating-point values in Val[0] and Val[1], each between
3320 0 and 1, corresponding to the X and Y locations respectively in
3321 the GL pixel space of that sample. (0.5, 0.5) this corresponds
3322 to the pixel center. Index must be between zero and the value of
3323 ?GL_SAMPLES minus one.
3324 External documentation.
3326 getObjectParameterfvARB(Obj :: i(), Pname :: enum()) -> f()
3328 getObjectParameterivARB(Obj :: i(), Pname :: enum()) -> i()
3330 No documentation available.
3332 getPixelMapfv(Map :: enum(), Values :: mem()) -> ok
3334 getPixelMapuiv(Map :: enum(), Values :: mem()) -> ok
3336 getPixelMapusv(Map :: enum(), Values :: mem()) -> ok
3338 See the gl:pixelMap() reference page for a description of the
3340 acceptable values for the Map parameter. gl:getPixelMap() re‐
3341 turns in Data the contents of the pixel map specified in Map.
3342 Pixel maps are used during the execution of gl:readPixels/7,
3343 gl:drawPixels/5, gl:copyPixels/5, gl:texImage1D/8, gl:texIm‐
3344 age2D/9, gl:texImage3D/10, gl:texSubImage1D/7, gl:texSubIm‐
3345 age2D/9, gl:texSubImage3D/11, gl:copyTexImage1D/7, gl:copyTexIm‐
3346 age2D/8, gl:copyTexSubImage1D/6, gl:copyTexSubImage2D/8, and
3347 gl:copyTexSubImage3D/9. to map color indices, stencil indices,
3348 color components, and depth components to other values.
3349 External documentation.
3351 getPolygonStipple() -> binary()
3353 gl:getPolygonStipple/0 returns to Pattern a 32×32 polygon stip‐
3355 ple pattern. The pattern is packed into memory as if gl:readPix‐
3356 els/7 with both height and width of 32, type of ?GL_BITMAP, and
3357 format of ?GL_COLOR_INDEX were called, and the stipple pattern
3358 were stored in an internal 32×32 color index buffer. Unlike
3359 gl:readPixels/7, however, pixel transfer operations (shift, off‐
3360 set, pixel map) are not applied to the returned stipple image.
3361 External documentation.
3363 getProgramiv(Program :: i(), Pname :: enum()) -> i()
3365 gl:getProgram() returns in Params the value of a parameter for a
3367 specific program object. The following parameters are defined:
3368 External documentation.
3370 getProgramBinary(Program :: i(), BufSize :: i()) ->
3372 {BinaryFormat :: enum(), Binary :: binary()}
3373 gl:getProgramBinary/2 returns a binary representation of the
3375 compiled and linked executable for Program into the array of
3376 bytes whose address is specified in Binary. The maximum number
3377 of bytes that may be written into Binary is specified by Buf‐
3378 Size. If the program binary is greater in size than BufSize
3379 bytes, then an error is generated, otherwise the actual number
3380 of bytes written into Binary is returned in the variable whose
3381 address is given by Length. If Length is ?NULL, then no length
3382 is returned.
3383 External documentation.
3385 getProgramEnvParameterdvARB(Target :: enum(), Index :: i()) ->
3387 {f(), f(), f(), f()}
3388 getProgramEnvParameterfvARB(Target :: enum(), Index :: i()) ->
3390 {f(), f(), f(), f()}
3391 No documentation available.
3393 getProgramInfoLog(Program :: i(), BufSize :: i()) -> string()
3395 gl:getProgramInfoLog/2 returns the information log for the spec‐
3397 ified program object. The information log for a program object
3398 is modified when the program object is linked or validated. The
3399 string that is returned will be null terminated.
3400 External documentation.
3402 getProgramInterfaceiv(Program :: i(),
3404 ProgramInterface :: enum(),
3405 Pname :: enum()) ->
3406 i()
3407 gl:getProgramInterfaceiv/3 queries the property of the interface
3409 identifed by ProgramInterface in Program, the property name of
3410 which is given by Pname.
3411 External documentation.
3413 getProgramLocalParameterdvARB(Target :: enum(), Index :: i()) ->
3415 {f(), f(), f(), f()}
3416 getProgramLocalParameterfvARB(Target :: enum(), Index :: i()) ->
3418 {f(), f(), f(), f()}
3419 No documentation available.
3421 getProgramPipelineiv(Pipeline :: i(), Pname :: enum()) -> i()
3423 gl:getProgramPipelineiv/2 retrieves the value of a property of
3425 the program pipeline object Pipeline. Pname specifies the name
3426 of the parameter whose value to retrieve. The value of the pa‐
3427 rameter is written to the variable whose address is given by
3428 Params.
3429 External documentation.
3431 getProgramPipelineInfoLog(Pipeline :: i(), BufSize :: i()) ->
3433 string()
3434 gl:getProgramPipelineInfoLog/2 retrieves the info log for the
3436 program pipeline object Pipeline. The info log, including its
3437 null terminator, is written into the array of characters whose
3438 address is given by InfoLog. The maximum number of characters
3439 that may be written into InfoLog is given by BufSize, and the
3440 actual number of characters written into InfoLog is returned in
3441 the integer whose address is given by Length. If Length is
3442 ?NULL, no length is returned.
3443 External documentation.
3445 getProgramResourceIndex(Program :: i(),
3447 ProgramInterface :: enum(),
3448 Name :: string()) ->
3449 i()
3450 gl:getProgramResourceIndex/3 returns the unsigned integer index
3452 assigned to a resource named Name in the interface type Program‐
3453 Interface of program object Program.
3454 External documentation.
3456 getProgramResourceLocation(Program :: i(),
3458 ProgramInterface :: enum(),
3459 Name :: string()) ->
3460 i()
3461 gl:getProgramResourceLocation/3 returns the location assigned to
3463 the variable named Name in interface ProgramInterface of program
3464 object Program. Program must be the name of a program that has
3465 been linked successfully. ProgramInterface must be one of
3466 ?GL_UNIFORM, ?GL_PROGRAM_INPUT, ?GL_PROGRAM_OUTPUT, ?GL_VER‐
3467 TEX_SUBROUTINE_UNIFORM, ?GL_TESS_CONTROL_SUBROUTINE_UNIFORM,
3468 ?GL_TESS_EVALUATION_SUBROUTINE_UNIFORM, ?GL_GEOMETRY_SUBROU‐
3469 TINE_UNIFORM, ?GL_FRAGMENT_SUBROUTINE_UNIFORM, ?GL_COMPUTE_SUB‐
3470 ROUTINE_UNIFORM, or ?GL_TRANSFORM_FEEDBACK_BUFFER.
3471 External documentation.
3473 getProgramResourceLocationIndex(Program :: i(),
3475 ProgramInterface :: enum(),
3476 Name :: string()) ->
3477 i()
3478 gl:getProgramResourceLocationIndex/3 returns the fragment color
3480 index assigned to the variable named Name in interface Program‐
3481 Interface of program object Program. Program must be the name of
3482 a program that has been linked successfully. ProgramInterface
3483 must be ?GL_PROGRAM_OUTPUT.
3484 External documentation.
3486 getProgramResourceName(Program :: i(),
3488 ProgramInterface :: enum(),
3489 Index :: i(),
3490 BufSize :: i()) ->
3491 string()
3492 gl:getProgramResourceName/4 retrieves the name string assigned
3494 to the single active resource with an index of Index in the in‐
3495 terface ProgramInterface of program object Program. Index must
3496 be less than the number of entries in the active resource list
3497 for ProgramInterface.
3498 External documentation.
3500 getProgramStageiv(Program :: i(),
3502 Shadertype :: enum(),
3503 Pname :: enum()) ->
3504 i()
3505 gl:getProgramStage() queries a parameter of a shader stage at‐
3507 tached to a program object. Program contains the name of the
3508 program to which the shader is attached. Shadertype specifies
3509 the stage from which to query the parameter. Pname specifies
3510 which parameter should be queried. The value or values of the
3511 parameter to be queried is returned in the variable whose ad‐
3512 dress is given in Values.
3513 External documentation.
3515 getProgramStringARB(Target :: enum(),
3517 Pname :: enum(),
3518 String :: mem()) ->
3519 ok
3520 No documentation available.
3522 getQueryiv(Target :: enum(), Pname :: enum()) -> i()
3524 No documentation available.
3526 getQueryBufferObjectiv(Id :: i(),
3528 Buffer :: i(),
3529 Pname :: enum(),
3530 Offset :: i()) ->
3531 ok
3532 getQueryBufferObjectuiv(Id :: i(),
3534 Buffer :: i(),
3535 Pname :: enum(),
3536 Offset :: i()) ->
3537 ok
3538 No documentation available.
3540 getQueryBufferObjecti64v(Id :: i(),
3542 Buffer :: i(),
3543 Pname :: enum(),
3544 Offset :: i()) ->
3545 ok
3546 No documentation available.
3548 getQueryBufferObjectui64v(Id :: i(),
3550 Buffer :: i(),
3551 Pname :: enum(),
3552 Offset :: i()) ->
3553 ok
3554 No documentation available.
3556 getQueryIndexediv(Target :: enum(), Index :: i(), Pname :: enum()) ->
3558 i()
3559 gl:getQueryIndexediv/3 returns in Params a selected parameter of
3561 the indexed query object target specified by Target and Index.
3562 Index specifies the index of the query object target and must be
3563 between zero and a target-specific maxiumum.
3564 External documentation.
3566 getQueryObjectiv(Id :: i(), Pname :: enum()) -> i()
3568 getQueryObjectuiv(Id :: i(), Pname :: enum()) -> i()
3570 These commands return a selected parameter of the query object
3572 specified by Id. gl:getQueryObject() returns in Params a se‐
3573 lected parameter of the query object specified by Id. gl:get‐
3574 QueryBufferObject() returns in Buffer a selected parameter of
3575 the query object specified by Id, by writing it to Buffer's data
3576 store at the byte offset specified by Offset.
3577 External documentation.
3579 getQueryObjecti64v(Id :: i(), Pname :: enum()) -> i()
3581 No documentation available.
3583 getQueryObjectui64v(Id :: i(), Pname :: enum()) -> i()
3585 No documentation available.
3587 getRenderbufferParameteriv(Target :: enum(), Pname :: enum()) ->
3589 i()
3590 gl:getRenderbufferParameteriv/2 and glGetNamedRenderbufferParam‐
3592 eteriv query parameters of a specified renderbuffer object.
3593 External documentation.
3595 getSamplerParameterIiv(Sampler :: i(), Pname :: enum()) -> [i()]
3597 getSamplerParameterfv(Sampler :: i(), Pname :: enum()) -> [f()]
3599 getSamplerParameteriv(Sampler :: i(), Pname :: enum()) -> [i()]
3601 gl:getSamplerParameter() returns in Params the value or values
3603 of the sampler parameter specified as Pname. Sampler defines the
3604 target sampler, and must be the name of an existing sampler ob‐
3605 ject, returned from a previous call to gl:genSamplers/1. Pname
3606 accepts the same symbols as gl:samplerParameter(), with the same
3607 interpretations:
3608 External documentation.
3610 getSamplerParameterIuiv(Sampler :: i(), Pname :: enum()) -> [i()]
3612 No documentation available.
3614 getShaderiv(Shader :: i(), Pname :: enum()) -> i()
3616 gl:getShader() returns in Params the value of a parameter for a
3618 specific shader object. The following parameters are defined:
3619 External documentation.
3621 getShaderInfoLog(Shader :: i(), BufSize :: i()) -> string()
3623 gl:getShaderInfoLog/2 returns the information log for the speci‐
3625 fied shader object. The information log for a shader object is
3626 modified when the shader is compiled. The string that is re‐
3627 turned will be null terminated.
3628 External documentation.
3630 getShaderPrecisionFormat(Shadertype :: enum(),
3632 Precisiontype :: enum()) ->
3633 {Range :: {i(), i()},
3634 Precision :: i()}
3635 gl:getShaderPrecisionFormat/2 retrieves the numeric range and
3637 precision for the implementation's representation of quantities
3638 in different numeric formats in specified shader type. Shader‐
3639 Type specifies the type of shader for which the numeric preci‐
3640 sion and range is to be retrieved and must be one of ?GL_VER‐
3641 TEX_SHADER or ?GL_FRAGMENT_SHADER. PrecisionType specifies the
3642 numeric format to query and must be one of ?GL_LOW_FLOAT,
3643 ?GL_MEDIUM_FLOAT?GL_HIGH_FLOAT, ?GL_LOW_INT, ?GL_MEDIUM_INT, or
3644 ?GL_HIGH_INT.
3645 External documentation.
3647 getShaderSource(Shader :: i(), BufSize :: i()) -> string()
3649 gl:getShaderSource/2 returns the concatenation of the source
3651 code strings from the shader object specified by Shader. The
3652 source code strings for a shader object are the result of a pre‐
3653 vious call to gl:shaderSource/2. The string returned by the
3654 function will be null terminated.
3655 External documentation.
3657 getShaderSourceARB(Obj :: i(), MaxLength :: i()) -> string()
3659 No documentation available.
3661 getString(Name :: enum()) -> string()
3663 getStringi(Name :: enum(), Index :: i()) -> string()
3665 gl:getString/1 returns a pointer to a static string describing
3667 some aspect of the current GL connection. Name can be one of the
3668 following:
3669 External documentation.
3671 getSubroutineIndex(Program :: i(),
3673 Shadertype :: enum(),
3674 Name :: string()) ->
3675 i()
3676 gl:getSubroutineIndex/3 returns the index of a subroutine uni‐
3678 form within a shader stage attached to a program object. Program
3679 contains the name of the program to which the shader is at‐
3680 tached. Shadertype specifies the stage from which to query
3681 shader subroutine index. Name contains the null-terminated name
3682 of the subroutine uniform whose name to query.
3683 External documentation.
3685 getSubroutineUniformLocation(Program :: i(),
3687 Shadertype :: enum(),
3688 Name :: string()) ->
3689 i()
3690 gl:getSubroutineUniformLocation/3 returns the location of the
3692 subroutine uniform variable Name in the shader stage of type
3693 Shadertype attached to Program, with behavior otherwise identi‐
3694 cal to gl:getUniformLocation/2.
3695 External documentation.
3697 getSynciv(Sync :: i(), Pname :: enum(), BufSize :: i()) -> [i()]
3699 gl:getSynciv/3 retrieves properties of a sync object. Sync spec‐
3701 ifies the name of the sync object whose properties to retrieve.
3702 External documentation.
3704 getTexEnvfv(Target :: enum(), Pname :: enum()) ->
3706 {f(), f(), f(), f()}
3707 getTexEnviv(Target :: enum(), Pname :: enum()) ->
3709 {i(), i(), i(), i()}
3710 gl:getTexEnv() returns in Params selected values of a texture
3712 environment that was specified with gl:texEnv(). Target speci‐
3713 fies a texture environment.
3714 External documentation.
3716 getTexGendv(Coord :: enum(), Pname :: enum()) ->
3718 {f(), f(), f(), f()}
3719 getTexGenfv(Coord :: enum(), Pname :: enum()) ->
3721 {f(), f(), f(), f()}
3722 getTexGeniv(Coord :: enum(), Pname :: enum()) ->
3724 {i(), i(), i(), i()}
3725 gl:getTexGen() returns in Params selected parameters of a tex‐
3727 ture coordinate generation function that was specified using
3728 gl:texGen(). Coord names one of the (s, t, r, q) texture coordi‐
3729 nates, using the symbolic constant ?GL_S, ?GL_T, ?GL_R, or
3730 ?GL_Q.
3731 External documentation.
3733 getTexImage(Target :: enum(),
3735 Level :: i(),
3736 Format :: enum(),
3737 Type :: enum(),
3738 Pixels :: mem()) ->
3739 ok
3740 gl:getTexImage/5, glGetnTexImage and glGetTextureImage functions
3742 return a texture image into Pixels. For gl:getTexImage/5 and
3743 glGetnTexImage, Target specifies whether the desired texture im‐
3744 age is one specified by gl:texImage1D/8 (?GL_TEXTURE_1D),
3745 gl:texImage2D/9 (?GL_TEXTURE_1D_ARRAY, ?GL_TEXTURE_RECTANGLE,
3746 ?GL_TEXTURE_2D or any of ?GL_TEXTURE_CUBE_MAP_*), or gl:texIm‐
3747 age3D/10 (?GL_TEXTURE_2D_ARRAY, ?GL_TEXTURE_3D, ?GL_TEX‐
3748 TURE_CUBE_MAP_ARRAY). For glGetTextureImage, Texture specifies
3749 the texture object name. In addition to types of textures ac‐
3750 cepted by gl:getTexImage/5 and glGetnTexImage, the function also
3751 accepts cube map texture objects (with effective target ?GL_TEX‐
3752 TURE_CUBE_MAP). Level specifies the level-of-detail number of
3753 the desired image. Format and Type specify the format and type
3754 of the desired image array. See the reference page for gl:texIm‐
3755 age1D/8 for a description of the acceptable values for the For‐
3756 mat and Type parameters, respectively. For glGetnTexImage and
3757 glGetTextureImage functions, bufSize tells the size of the buf‐
3758 fer to receive the retrieved pixel data. glGetnTexImage and
3759 glGetTextureImage do not write more than BufSize bytes into Pix‐
3760 els.
3761 External documentation.
3763 getTexLevelParameterfv(Target :: enum(),
3765 Level :: i(),
3766 Pname :: enum()) ->
3767 {f()}
3768 getTexLevelParameteriv(Target :: enum(),
3770 Level :: i(),
3771 Pname :: enum()) ->
3772 {i()}
3773 gl:getTexLevelParameterfv/3, gl:getTexLevelParameteriv/3, glGet‐
3775 TextureLevelParameterfv and glGetTextureLevelParameteriv return
3776 in Params texture parameter values for a specific level-of-de‐
3777 tail value, specified as Level. For the first two functions,
3778 Target defines the target texture, either ?GL_TEXTURE_1D,
3779 ?GL_TEXTURE_2D, ?GL_TEXTURE_3D, ?GL_PROXY_TEXTURE_1D,
3780 ?GL_PROXY_TEXTURE_2D, ?GL_PROXY_TEXTURE_3D, ?GL_TEX‐
3781 TURE_CUBE_MAP_POSITIVE_X, ?GL_TEXTURE_CUBE_MAP_NEGATIVE_X,
3782 ?GL_TEXTURE_CUBE_MAP_POSITIVE_Y, ?GL_TEXTURE_CUBE_MAP_NEGA‐
3783 TIVE_Y, ?GL_TEXTURE_CUBE_MAP_POSITIVE_Z, ?GL_TEX‐
3784 TURE_CUBE_MAP_NEGATIVE_Z, or ?GL_PROXY_TEXTURE_CUBE_MAP. The re‐
3785 maining two take a Texture argument which specifies the name of
3786 the texture object.
3787 External documentation.
3789 getTexParameterIiv(Target :: enum(), Pname :: enum()) ->
3791 {i(), i(), i(), i()}
3792 getTexParameterfv(Target :: enum(), Pname :: enum()) ->
3794 {f(), f(), f(), f()}
3795 getTexParameteriv(Target :: enum(), Pname :: enum()) ->
3797 {i(), i(), i(), i()}
3798 gl:getTexParameter() and glGetTextureParameter return in Params
3800 the value or values of the texture parameter specified as Pname.
3801 Target defines the target texture. ?GL_TEXTURE_1D, ?GL_TEX‐
3802 TURE_2D, ?GL_TEXTURE_3D, ?GL_TEXTURE_1D_ARRAY, ?GL_TEX‐
3803 TURE_2D_ARRAY, ?GL_TEXTURE_RECTANGLE, ?GL_TEXTURE_CUBE_MAP,
3804 ?GL_TEXTURE_CUBE_MAP_ARRAY, ?GL_TEXTURE_2D_MULTISAMPLE, or
3805 ?GL_TEXTURE_2D_MULTISAMPLE_ARRAY specify one-, two-, or three-
3806 dimensional, one-dimensional array, two-dimensional array, rec‐
3807 tangle, cube-mapped or cube-mapped array, two-dimensional multi‐
3808 sample, or two-dimensional multisample array texturing, respec‐
3809 tively. Pname accepts the same symbols as gl:texParameter(),
3810 with the same interpretations:
3811 External documentation.
3813 getTexParameterIuiv(Target :: enum(), Pname :: enum()) ->
3815 {i(), i(), i(), i()}
3816 No documentation available.
3818 getTransformFeedbackVarying(Program :: i(),
3820 Index :: i(),
3821 BufSize :: i()) ->
3822 {Size :: i(),
3823 Type :: enum(),
3824 Name :: string()}
3825 Information about the set of varying variables in a linked pro‐
3827 gram that will be captured during transform feedback may be re‐
3828 trieved by calling gl:getTransformFeedbackVarying/3. gl:get‐
3829 TransformFeedbackVarying/3 provides information about the vary‐
3830 ing variable selected by Index. An Index of 0 selects the first
3831 varying variable specified in the Varyings array passed to
3832 gl:transformFeedbackVaryings/3, and an Index of the value of
3833 ?GL_TRANSFORM_FEEDBACK_VARYINGS minus one selects the last such
3834 variable.
3835 External documentation.
3837 getUniformdv(Program :: i(), Location :: i()) -> matrix()
3839 getUniformfv(Program :: i(), Location :: i()) -> matrix()
3841 getUniformiv(Program :: i(), Location :: i()) ->
3843 {i(),
3844 i(),
3845 i(),
3846 i(),
3847 i(),
3848 i(),
3849 i(),
3850 i(),
3851 i(),
3852 i(),
3853 i(),
3854 i(),
3855 i(),
3856 i(),
3857 i(),
3858 i()}
3859 getUniformuiv(Program :: i(), Location :: i()) ->
3861 {i(),
3862 i(),
3863 i(),
3864 i(),
3865 i(),
3866 i(),
3867 i(),
3868 i(),
3869 i(),
3870 i(),
3871 i(),
3872 i(),
3873 i(),
3874 i(),
3875 i(),
3876 i()}
3877 gl:getUniform() and glGetnUniform return in Params the value(s)
3879 of the specified uniform variable. The type of the uniform vari‐
3880 able specified by Location determines the number of values re‐
3881 turned. If the uniform variable is defined in the shader as a
3882 boolean, int, or float, a single value will be returned. If it
3883 is defined as a vec2, ivec2, or bvec2, two values will be re‐
3884 turned. If it is defined as a vec3, ivec3, or bvec3, three val‐
3885 ues will be returned, and so on. To query values stored in uni‐
3886 form variables declared as arrays, call gl:getUniform() for each
3887 element of the array. To query values stored in uniform vari‐
3888 ables declared as structures, call gl:getUniform() for each
3889 field in the structure. The values for uniform variables de‐
3890 clared as a matrix will be returned in column major order.
3891 External documentation.
3893 getUniformfvARB(ProgramObj :: i(), Location :: i()) -> matrix()
3895 getUniformivARB(ProgramObj :: i(), Location :: i()) ->
3897 {i(),
3898 i(),
3899 i(),
3900 i(),
3901 i(),
3902 i(),
3903 i(),
3904 i(),
3905 i(),
3906 i(),
3907 i(),
3908 i(),
3909 i(),
3910 i(),
3911 i(),
3912 i()}
3913 No documentation available.
3915 getUniformBlockIndex(Program :: i(), UniformBlockName :: string()) ->
3917 i()
3918 gl:getUniformBlockIndex/2 retrieves the index of a uniform block
3920 within Program.
3921 External documentation.
3923 getUniformIndices(Program :: i(),
3925 UniformNames :: [unicode:chardata()]) ->
3926 [i()]
3927 gl:getUniformIndices/2 retrieves the indices of a number of uni‐
3929 forms within Program.
3930 External documentation.
3932 getUniformLocation(Program :: i(), Name :: string()) -> i()
3934 glGetUniformLocation returns an integer that represents the lo‐
3936 cation of a specific uniform variable within a program object.
3937 Name must be a null terminated string that contains no white
3938 space. Name must be an active uniform variable name in Program
3939 that is not a structure, an array of structures, or a subcompo‐
3940 nent of a vector or a matrix. This function returns -1 if Name
3941 does not correspond to an active uniform variable in Program, if
3942 Name starts with the reserved prefix "gl_", or if Name is asso‐
3943 ciated with an atomic counter or a named uniform block.
3944 External documentation.
3946 getUniformLocationARB(ProgramObj :: i(), Name :: string()) -> i()
3948 No documentation available.
3950 getUniformSubroutineuiv(Shadertype :: enum(), Location :: i()) ->
3952 {i(),
3953 i(),
3954 i(),
3955 i(),
3956 i(),
3957 i(),
3958 i(),
3959 i(),
3960 i(),
3961 i(),
3962 i(),
3963 i(),
3964 i(),
3965 i(),
3966 i(),
3967 i()}
3968 gl:getUniformSubroutine() retrieves the value of the subroutine
3970 uniform at location Location for shader stage Shadertype of the
3971 current program. Location must be less than the value of ?GL_AC‐
3972 TIVE_SUBROUTINE_UNIFORM_LOCATIONS for the shader currently in
3973 use at shader stage Shadertype. The value of the subroutine uni‐
3974 form is returned in Values.
3975 External documentation.
3977 getUniformi64vARB(Program :: i(), Location :: i()) ->
3979 {i(),
3980 i(),
3981 i(),
3982 i(),
3983 i(),
3984 i(),
3985 i(),
3986 i(),
3987 i(),
3988 i(),
3989 i(),
3990 i(),
3991 i(),
3992 i(),
3993 i(),
3994 i()}
3995 No documentation available.
3997 getUniformui64vARB(Program :: i(), Location :: i()) ->
3999 {i(),
4000 i(),
4001 i(),
4002 i(),
4003 i(),
4004 i(),
4005 i(),
4006 i(),
4007 i(),
4008 i(),
4009 i(),
4010 i(),
4011 i(),
4012 i(),
4013 i(),
4014 i()}
4015 No documentation available.
4017 getVertexAttribIiv(Index :: i(), Pname :: enum()) ->
4019 {i(), i(), i(), i()}
4020 getVertexAttribdv(Index :: i(), Pname :: enum()) ->
4022 {f(), f(), f(), f()}
4023 getVertexAttribfv(Index :: i(), Pname :: enum()) ->
4025 {f(), f(), f(), f()}
4026 getVertexAttribiv(Index :: i(), Pname :: enum()) ->
4028 {i(), i(), i(), i()}
4029 gl:getVertexAttrib() returns in Params the value of a generic
4031 vertex attribute parameter. The generic vertex attribute to be
4032 queried is specified by Index, and the parameter to be queried
4033 is specified by Pname.
4034 External documentation.
4036 getVertexAttribIuiv(Index :: i(), Pname :: enum()) ->
4038 {i(), i(), i(), i()}
4039 No documentation available.
4041 getVertexAttribLdv(Index :: i(), Pname :: enum()) ->
4043 {f(), f(), f(), f()}
4044 No documentation available.
4046 hint(Target :: enum(), Mode :: enum()) -> ok
4048 Certain aspects of GL behavior, when there is room for interpre‐
4050 tation, can be controlled with hints. A hint is specified with
4051 two arguments. Target is a symbolic constant indicating the be‐
4052 havior to be controlled, and Mode is another symbolic constant
4053 indicating the desired behavior. The initial value for each Tar‐
4054 get is ?GL_DONT_CARE. Mode can be one of the following:
4055 External documentation.
4057 histogram(Target :: enum(),
4059 Width :: i(),
4060 Internalformat :: enum(),
4061 Sink :: 0 | 1) ->
4062 ok
4063 When ?GL_HISTOGRAM is enabled, RGBA color components are con‐
4065 verted to histogram table indices by clamping to the range
4066 [0,1], multiplying by the width of the histogram table, and
4067 rounding to the nearest integer. The table entries selected by
4068 the RGBA indices are then incremented. (If the internal format
4069 of the histogram table includes luminance, then the index de‐
4070 rived from the R color component determines the luminance table
4071 entry to be incremented.) If a histogram table entry is incre‐
4072 mented beyond its maximum value, then its value becomes unde‐
4073 fined. (This is not an error.)
4074 External documentation.
4076 indexd(C :: f()) -> ok
4078 indexdv(X1 :: {C :: f()}) -> ok
4080 indexf(C :: f()) -> ok
4082 indexfv(X1 :: {C :: f()}) -> ok
4084 indexi(C :: i()) -> ok
4086 indexiv(X1 :: {C :: i()}) -> ok
4088 indexs(C :: i()) -> ok
4090 indexsv(X1 :: {C :: i()}) -> ok
4092 indexub(C :: i()) -> ok
4094 indexubv(X1 :: {C :: i()}) -> ok
4096 gl:index() updates the current (single-valued) color index. It
4098 takes one argument, the new value for the current color index.
4099 External documentation.
4101 indexMask(Mask :: i()) -> ok
4103 gl:indexMask/1 controls the writing of individual bits in the
4105 color index buffers. The least significant n bits of Mask, where
4106 n is the number of bits in a color index buffer, specify a mask.
4107 Where a 1 (one) appears in the mask, it's possible to write to
4108 the corresponding bit in the color index buffer (or buffers).
4109 Where a 0 (zero) appears, the corresponding bit is write-pro‐
4110 tected.
4111 External documentation.
4113 indexPointer(Type :: enum(),
4115 Stride :: i(),
4116 Ptr :: offset() | mem()) ->
4117 ok
4118 gl:indexPointer/3 specifies the location and data format of an
4120 array of color indexes to use when rendering. Type specifies the
4121 data type of each color index and Stride specifies the byte
4122 stride from one color index to the next, allowing vertices and
4123 attributes to be packed into a single array or stored in sepa‐
4124 rate arrays.
4125 External documentation.
4127 initNames() -> ok
4129 The name stack is used during selection mode to allow sets of
4131 rendering commands to be uniquely identified. It consists of an
4132 ordered set of unsigned integers. gl:initNames/0 causes the name
4133 stack to be initialized to its default empty state.
4134 External documentation.
4136 interleavedArrays(Format :: enum(),
4138 Stride :: i(),
4139 Pointer :: offset() | mem()) ->
4140 ok
4141 gl:interleavedArrays/3 lets you specify and enable individual
4143 color, normal, texture and vertex arrays whose elements are part
4144 of a larger aggregate array element. For some implementations,
4145 this is more efficient than specifying the arrays separately.
4146 External documentation.
4148 invalidateBufferData(Buffer :: i()) -> ok
4150 gl:invalidateBufferData/1 invalidates all of the content of the
4152 data store of a buffer object. After invalidation, the content
4153 of the buffer's data store becomes undefined.
4154 External documentation.
4156 invalidateBufferSubData(Buffer :: i(),
4158 Offset :: i(),
4159 Length :: i()) ->
4160 ok
4161 gl:invalidateBufferSubData/3 invalidates all or part of the con‐
4163 tent of the data store of a buffer object. After invalidation,
4164 the content of the specified range of the buffer's data store
4165 becomes undefined. The start of the range is given by Offset and
4166 its size is given by Length, both measured in basic machine
4167 units.
4168 External documentation.
4170 invalidateFramebuffer(Target :: enum(), Attachments :: [enum()]) ->
4172 ok
4173 gl:invalidateFramebuffer/2 and glInvalidateNamedFramebufferData
4175 invalidate the entire contents of a specified set of attachments
4176 of a framebuffer.
4177 External documentation.
4179 invalidateSubFramebuffer(Target :: enum(),
4181 Attachments :: [enum()],
4182 X :: i(),
4183 Y :: i(),
4184 Width :: i(),
4185 Height :: i()) ->
4186 ok
4187 gl:invalidateSubFramebuffer/6 and glInvalidateNamedFramebuffer‐
4189 SubData invalidate the contents of a specified region of a spec‐
4190 ified set of attachments of a framebuffer.
4191 External documentation.
4193 invalidateTexImage(Texture :: i(), Level :: i()) -> ok
4195 gl:invalidateTexSubImage/8 invalidates all of a texture image.
4197 Texture and Level indicated which texture image is being invali‐
4198 dated. After this command, data in the texture image has unde‐
4199 fined values.
4200 External documentation.
4202 invalidateTexSubImage(Texture, Level, Xoffset, Yoffset, Zoffset,
4204 Width, Height, Depth) ->
4205 ok
4206 Types:
4208 Texture = Level = Xoffset = Yoffset = Zoffset = Width =
4210 Height = Depth = i()
4211 gl:invalidateTexSubImage/8 invalidates all or part of a texture
4213 image. Texture and Level indicated which texture image is being
4214 invalidated. After this command, data in that subregion have un‐
4215 defined values. Xoffset, Yoffset, Zoffset, Width, Height, and
4216 Depth are interpreted as they are in gl:texSubImage3D/11. For
4217 texture targets that don't have certain dimensions, this command
4218 treats those dimensions as having a size of 1. For example, to
4219 invalidate a portion of a two- dimensional texture, the applica‐
4220 tion would use Zoffset equal to zero and Depth equal to one.
4221 Cube map textures are treated as an array of six slices in the
4222 z-dimension, where a value of Zoffset is interpreted as specify‐
4223 ing face ?GL_TEXTURE_CUBE_MAP_POSITIVE_X + Zoffset.
4224 External documentation.
4226 isBuffer(Buffer :: i()) -> 0 | 1
4228 gl:isBuffer/1 returns ?GL_TRUE if Buffer is currently the name
4230 of a buffer object. If Buffer is zero, or is a non-zero value
4231 that is not currently the name of a buffer object, or if an er‐
4232 ror occurs, gl:isBuffer/1 returns ?GL_FALSE.
4233 External documentation.
4235 isEnabled(Cap :: enum()) -> 0 | 1
4237 gl:isEnabled/1 returns ?GL_TRUE if Cap is an enabled capability
4239 and returns ?GL_FALSE otherwise. Boolean states that are indexed
4240 may be tested with gl:isEnabledi/2. For gl:isEnabledi/2, Index
4241 specifies the index of the capability to test. Index must be be‐
4242 tween zero and the count of indexed capabilities for Cap. Ini‐
4243 tially all capabilities except ?GL_DITHER are disabled;
4244 ?GL_DITHER is initially enabled.
4245 External documentation.
4247 isEnabledi(Target :: enum(), Index :: i()) -> 0 | 1
4249 No documentation available.
4251 isFramebuffer(Framebuffer :: i()) -> 0 | 1
4253 gl:isFramebuffer/1 returns ?GL_TRUE if Framebuffer is currently
4255 the name of a framebuffer object. If Framebuffer is zero, or if
4256 ?framebuffer is not the name of a framebuffer object, or if an
4257 error occurs, gl:isFramebuffer/1 returns ?GL_FALSE. If Frame‐
4258 buffer is a name returned by gl:genFramebuffers/1, by that has
4259 not yet been bound through a call to gl:bindFramebuffer/2, then
4260 the name is not a framebuffer object and gl:isFramebuffer/1 re‐
4261 turns ?GL_FALSE.
4262 External documentation.
4264 isImageHandleResidentARB(Handle :: i()) -> 0 | 1
4266 No documentation available.
4268 isList(List :: i()) -> 0 | 1
4270 gl:isList/1 returns ?GL_TRUE if List is the name of a display
4272 list and returns ?GL_FALSE if it is not, or if an error occurs.
4273 External documentation.
4275 isNamedStringARB(Name :: string()) -> 0 | 1
4277 No documentation available.
4279 isProgram(Program :: i()) -> 0 | 1
4281 gl:isProgram/1 returns ?GL_TRUE if Program is the name of a pro‐
4283 gram object previously created with gl:createProgram/0 and not
4284 yet deleted with gl:deleteProgram/1. If Program is zero or a
4285 non-zero value that is not the name of a program object, or if
4286 an error occurs, gl:isProgram/1 returns ?GL_FALSE.
4287 External documentation.
4289 isProgramPipeline(Pipeline :: i()) -> 0 | 1
4291 gl:isProgramPipeline/1 returns ?GL_TRUE if Pipeline is currently
4293 the name of a program pipeline object. If Pipeline is zero, or
4294 if ?pipeline is not the name of a program pipeline object, or if
4295 an error occurs, gl:isProgramPipeline/1 returns ?GL_FALSE. If
4296 Pipeline is a name returned by gl:genProgramPipelines/1, but
4297 that has not yet been bound through a call to gl:bindPro‐
4298 gramPipeline/1, then the name is not a program pipeline object
4299 and gl:isProgramPipeline/1 returns ?GL_FALSE.
4300 External documentation.
4302 isQuery(Id :: i()) -> 0 | 1
4304 gl:isQuery/1 returns ?GL_TRUE if Id is currently the name of a
4306 query object. If Id is zero, or is a non-zero value that is not
4307 currently the name of a query object, or if an error occurs,
4308 gl:isQuery/1 returns ?GL_FALSE.
4309 External documentation.
4311 isRenderbuffer(Renderbuffer :: i()) -> 0 | 1
4313 gl:isRenderbuffer/1 returns ?GL_TRUE if Renderbuffer is cur‐
4315 rently the name of a renderbuffer object. If Renderbuffer is
4316 zero, or if Renderbuffer is not the name of a renderbuffer ob‐
4317 ject, or if an error occurs, gl:isRenderbuffer/1 returns
4318 ?GL_FALSE. If Renderbuffer is a name returned by gl:genRender‐
4319 buffers/1, by that has not yet been bound through a call to
4320 gl:bindRenderbuffer/2 or gl:framebufferRenderbuffer/4, then the
4321 name is not a renderbuffer object and gl:isRenderbuffer/1 re‐
4322 turns ?GL_FALSE.
4323 External documentation.
4325 isSampler(Sampler :: i()) -> 0 | 1
4327 gl:isSampler/1 returns ?GL_TRUE if Id is currently the name of a
4329 sampler object. If Id is zero, or is a non-zero value that is
4330 not currently the name of a sampler object, or if an error oc‐
4331 curs, gl:isSampler/1 returns ?GL_FALSE.
4332 External documentation.
4334 isShader(Shader :: i()) -> 0 | 1
4336 gl:isShader/1 returns ?GL_TRUE if Shader is the name of a shader
4338 object previously created with gl:createShader/1 and not yet
4339 deleted with gl:deleteShader/1. If Shader is zero or a non-zero
4340 value that is not the name of a shader object, or if an error
4341 occurs, glIsShader returns ?GL_FALSE.
4342 External documentation.
4344 isSync(Sync :: i()) -> 0 | 1
4346 gl:isSync/1 returns ?GL_TRUE if Sync is currently the name of a
4348 sync object. If Sync is not the name of a sync object, or if an
4349 error occurs, gl:isSync/1 returns ?GL_FALSE. Note that zero is
4350 not the name of a sync object.
4351 External documentation.
4353 isTexture(Texture :: i()) -> 0 | 1
4355 gl:isTexture/1 returns ?GL_TRUE if Texture is currently the name
4357 of a texture. If Texture is zero, or is a non-zero value that is
4358 not currently the name of a texture, or if an error occurs,
4359 gl:isTexture/1 returns ?GL_FALSE.
4360 External documentation.
4362 isTextureHandleResidentARB(Handle :: i()) -> 0 | 1
4364 No documentation available.
4366 isTransformFeedback(Id :: i()) -> 0 | 1
4368 gl:isTransformFeedback/1 returns ?GL_TRUE if Id is currently the
4370 name of a transform feedback object. If Id is zero, or if ?id is
4371 not the name of a transform feedback object, or if an error oc‐
4372 curs, gl:isTransformFeedback/1 returns ?GL_FALSE. If Id is a
4373 name returned by gl:genTransformFeedbacks/1, but that has not
4374 yet been bound through a call to gl:bindTransformFeedback/2,
4375 then the name is not a transform feedback object and gl:isTrans‐
4376 formFeedback/1 returns ?GL_FALSE.
4377 External documentation.
4379 isVertexArray(Array :: i()) -> 0 | 1
4381 gl:isVertexArray/1 returns ?GL_TRUE if Array is currently the
4383 name of a vertex array object. If Array is zero, or if Array is
4384 not the name of a vertex array object, or if an error occurs,
4385 gl:isVertexArray/1 returns ?GL_FALSE. If Array is a name re‐
4386 turned by gl:genVertexArrays/1, by that has not yet been bound
4387 through a call to gl:bindVertexArray/1, then the name is not a
4388 vertex array object and gl:isVertexArray/1 returns ?GL_FALSE.
4389 External documentation.
4391 lightf(Light :: enum(), Pname :: enum(), Param :: f()) -> ok
4393 lightfv(Light :: enum(), Pname :: enum(), Params :: tuple()) -> ok
4395 lighti(Light :: enum(), Pname :: enum(), Param :: i()) -> ok
4397 lightiv(Light :: enum(), Pname :: enum(), Params :: tuple()) -> ok
4399 gl:light() sets the values of individual light source parame‐
4401 ters. Light names the light and is a symbolic name of the form
4402 ?GL_LIGHT i, where i ranges from 0 to the value of
4403 ?GL_MAX_LIGHTS - 1. Pname specifies one of ten light source pa‐
4404 rameters, again by symbolic name. Params is either a single
4405 value or a pointer to an array that contains the new values.
4406 External documentation.
4408 lightModelf(Pname :: enum(), Param :: f()) -> ok
4410 lightModelfv(Pname :: enum(), Params :: tuple()) -> ok
4412 lightModeli(Pname :: enum(), Param :: i()) -> ok
4414 lightModeliv(Pname :: enum(), Params :: tuple()) -> ok
4416 gl:lightModel() sets the lighting model parameter. Pname names a
4418 parameter and Params gives the new value. There are three light‐
4419 ing model parameters:
4420 External documentation.
4422 lineStipple(Factor :: i(), Pattern :: i()) -> ok
4424 Line stippling masks out certain fragments produced by rasteri‐
4426 zation; those fragments will not be drawn. The masking is
4427 achieved by using three parameters: the 16-bit line stipple pat‐
4428 tern Pattern, the repeat count Factor, and an integer stipple
4429 counter s.
4430 External documentation.
4432 lineWidth(Width :: f()) -> ok
4434 gl:lineWidth/1 specifies the rasterized width of both aliased
4436 and antialiased lines. Using a line width other than 1 has dif‐
4437 ferent effects, depending on whether line antialiasing is en‐
4438 abled. To enable and disable line antialiasing, call gl:enable/1
4439 and gl:disable/1 with argument ?GL_LINE_SMOOTH. Line antialias‐
4440 ing is initially disabled.
4441 External documentation.
4443 linkProgram(Program :: i()) -> ok
4445 gl:linkProgram/1 links the program object specified by Program.
4447 If any shader objects of type ?GL_VERTEX_SHADER are attached to
4448 Program, they will be used to create an executable that will run
4449 on the programmable vertex processor. If any shader objects of
4450 type ?GL_GEOMETRY_SHADER are attached to Program, they will be
4451 used to create an executable that will run on the programmable
4452 geometry processor. If any shader objects of type ?GL_FRAG‐
4453 MENT_SHADER are attached to Program, they will be used to create
4454 an executable that will run on the programmable fragment proces‐
4455 sor.
4456 External documentation.
4458 linkProgramARB(ProgramObj :: i()) -> ok
4460 No documentation available.
4462 listBase(Base :: i()) -> ok
4464 gl:callLists/1 specifies an array of offsets. Display-list names
4466 are generated by adding Base to each offset. Names that refer‐
4467 ence valid display lists are executed; the others are ignored.
4468 External documentation.
4470 loadIdentity() -> ok
4472 gl:loadIdentity/0 replaces the current matrix with the identity
4474 matrix. It is semantically equivalent to calling gl:loadMatrix()
4475 with the identity matrix
4476 External documentation.
4478 loadMatrixd(M :: matrix()) -> ok
4480 loadMatrixf(M :: matrix()) -> ok
4482 gl:loadMatrix() replaces the current matrix with the one whose
4484 elements are specified by M. The current matrix is the projec‐
4485 tion matrix, modelview matrix, or texture matrix, depending on
4486 the current matrix mode (see gl:matrixMode/1).
4487 External documentation.
4489 loadName(Name :: i()) -> ok
4491 The name stack is used during selection mode to allow sets of
4493 rendering commands to be uniquely identified. It consists of an
4494 ordered set of unsigned integers and is initially empty.
4495 External documentation.
4497 loadTransposeMatrixd(M :: matrix()) -> ok
4499 loadTransposeMatrixf(M :: matrix()) -> ok
4501 gl:loadTransposeMatrix() replaces the current matrix with the
4503 one whose elements are specified by M. The current matrix is the
4504 projection matrix, modelview matrix, or texture matrix, depend‐
4505 ing on the current matrix mode (see gl:matrixMode/1).
4506 External documentation.
4508 loadTransposeMatrixdARB(M :: matrix()) -> ok
4510 loadTransposeMatrixfARB(M :: matrix()) -> ok
4512 No documentation available.
4514 logicOp(Opcode :: enum()) -> ok
4516 gl:logicOp/1 specifies a logical operation that, when enabled,
4518 is applied between the incoming RGBA color and the RGBA color at
4519 the corresponding location in the frame buffer. To enable or
4520 disable the logical operation, call gl:enable/1 and gl:disable/1
4521 using the symbolic constant ?GL_COLOR_LOGIC_OP. The initial
4522 value is disabled.
4523 External documentation.
4525 makeImageHandleNonResidentARB(Handle :: i()) -> ok
4527 No documentation available.
4529 makeImageHandleResidentARB(Handle :: i(), Access :: enum()) -> ok
4531 No documentation available.
4533 makeTextureHandleNonResidentARB(Handle :: i()) -> ok
4535 No documentation available.
4537 makeTextureHandleResidentARB(Handle :: i()) -> ok
4539 No documentation available.
4541 map1d(Target :: enum(),
4543 U1 :: f(),
4544 U2 :: f(),
4545 Stride :: i(),
4546 Order :: i(),
4547 Points :: binary()) ->
4548 ok
4549 map1f(Target :: enum(),
4551 U1 :: f(),
4552 U2 :: f(),
4553 Stride :: i(),
4554 Order :: i(),
4555 Points :: binary()) ->
4556 ok
4557 map2d(Target, U1, U2, Ustride, Uorder, V1, V2, Vstride, Vorder,
4559 Points) ->
4560 ok
4561 map2f(Target, U1, U2, Ustride, Uorder, V1, V2, Vstride, Vorder,
4563 Points) ->
4564 ok
4565 Types:
4567 Target = enum()
4569 U1 = U2 = f()
4570 Ustride = Uorder = i()
4571 V1 = V2 = f()
4572 Vstride = Vorder = i()
4573 Points = binary()
4574 No documentation available.
4576 mapGrid1d(Un :: i(), U1 :: f(), U2 :: f()) -> ok
4578 mapGrid1f(Un :: i(), U1 :: f(), U2 :: f()) -> ok
4580 mapGrid2d(Un :: i(),
4582 U1 :: f(),
4583 U2 :: f(),
4584 Vn :: i(),
4585 V1 :: f(),
4586 V2 :: f()) ->
4587 ok
4588 mapGrid2f(Un :: i(),
4590 U1 :: f(),
4591 U2 :: f(),
4592 Vn :: i(),
4593 V1 :: f(),
4594 V2 :: f()) ->
4595 ok
4596 gl:mapGrid() and gl:evalMesh() are used together to efficiently
4598 generate and evaluate a series of evenly-spaced map domain val‐
4599 ues. gl:evalMesh() steps through the integer domain of a one- or
4600 two-dimensional grid, whose range is the domain of the evalua‐
4601 tion maps specified by gl:map1() and gl:map2().
4602 External documentation.
4604 materialf(Face :: enum(), Pname :: enum(), Param :: f()) -> ok
4606 materialfv(Face :: enum(), Pname :: enum(), Params :: tuple()) ->
4608 ok
4609 materiali(Face :: enum(), Pname :: enum(), Param :: i()) -> ok
4611 materialiv(Face :: enum(), Pname :: enum(), Params :: tuple()) ->
4613 ok
4614 gl:material() assigns values to material parameters. There are
4616 two matched sets of material parameters. One, the front-facing
4617 set, is used to shade points, lines, bitmaps, and all polygons
4618 (when two-sided lighting is disabled), or just front-facing
4619 polygons (when two-sided lighting is enabled). The other set,
4620 back-facing, is used to shade back-facing polygons only when
4621 two-sided lighting is enabled. Refer to the gl:lightModel() ref‐
4622 erence page for details concerning one- and two-sided lighting
4623 calculations.
4624 External documentation.
4626 matrixIndexubvARB(Indices :: [i()]) -> ok
4628 matrixIndexuivARB(Indices :: [i()]) -> ok
4630 matrixIndexusvARB(Indices :: [i()]) -> ok
4632 No documentation available.
4634 matrixMode(Mode :: enum()) -> ok
4636 gl:matrixMode/1 sets the current matrix mode. Mode can assume
4638 one of four values:
4639 External documentation.
4641 maxShaderCompilerThreadsARB(Count :: i()) -> ok
4643 No documentation available.
4645 maxShaderCompilerThreadsKHR(Count :: i()) -> ok
4647 No documentation available.
4649 memoryBarrier(Barriers :: i()) -> ok
4651 gl:memoryBarrier/1 defines a barrier ordering the memory trans‐
4653 actions issued prior to the command relative to those issued af‐
4654 ter the barrier. For the purposes of this ordering, memory
4655 transactions performed by shaders are considered to be issued by
4656 the rendering command that triggered the execution of the
4657 shader. Barriers is a bitfield indicating the set of operations
4658 that are synchronized with shader stores; the bits used in Bar‐
4659 riers are as follows:
4660 External documentation.
4662 memoryBarrierByRegion(Barriers :: i()) -> ok
4664 No documentation available.
4666 minSampleShading(Value :: f()) -> ok
4668 gl:minSampleShading/1 specifies the rate at which samples are
4670 shaded within a covered pixel. Sample-rate shading is enabled by
4671 calling gl:enable/1 with the parameter ?GL_SAMPLE_SHADING. If
4672 ?GL_MULTISAMPLE or ?GL_SAMPLE_SHADING is disabled, sample shad‐
4673 ing has no effect. Otherwise, an implementation must provide at
4674 least as many unique color values for each covered fragment as
4675 specified by Value times Samples where Samples is the value of
4676 ?GL_SAMPLES for the current framebuffer. At least 1 sample for
4677 each covered fragment is generated.
4678 External documentation.
4680 minmax(Target :: enum(), Internalformat :: enum(), Sink :: 0 | 1) ->
4682 ok
4683 When ?GL_MINMAX is enabled, the RGBA components of incoming pix‐
4685 els are compared to the minimum and maximum values for each com‐
4686 ponent, which are stored in the two-element minmax table. (The
4687 first element stores the minima, and the second element stores
4688 the maxima.) If a pixel component is greater than the corre‐
4689 sponding component in the maximum element, then the maximum ele‐
4690 ment is updated with the pixel component value. If a pixel com‐
4691 ponent is less than the corresponding component in the minimum
4692 element, then the minimum element is updated with the pixel com‐
4693 ponent value. (In both cases, if the internal format of the min‐
4694 max table includes luminance, then the R color component of in‐
4695 coming pixels is used for comparison.) The contents of the min‐
4696 max table may be retrieved at a later time by calling gl:getMin‐
4697 max/5. The minmax operation is enabled or disabled by calling
4698 gl:enable/1 or gl:disable/1, respectively, with an argument of
4699 ?GL_MINMAX.
4700 External documentation.
4702 multMatrixd(M :: matrix()) -> ok
4704 multMatrixf(M :: matrix()) -> ok
4706 gl:multMatrix() multiplies the current matrix with the one spec‐
4708 ified using M, and replaces the current matrix with the product.
4709 External documentation.
4711 multTransposeMatrixd(M :: matrix()) -> ok
4713 multTransposeMatrixf(M :: matrix()) -> ok
4715 gl:multTransposeMatrix() multiplies the current matrix with the
4717 one specified using M, and replaces the current matrix with the
4718 product.
4719 External documentation.
4721 multTransposeMatrixdARB(M :: matrix()) -> ok
4723 multTransposeMatrixfARB(M :: matrix()) -> ok
4725 No documentation available.
4727 multiDrawArrays(Mode :: enum(),
4729 First :: [integer()] | mem(),
4730 Count :: [integer()] | mem()) ->
4731 ok
4732 gl:multiDrawArrays/3 specifies multiple sets of geometric primi‐
4734 tives with very few subroutine calls. Instead of calling a GL
4735 procedure to pass each individual vertex, normal, texture coor‐
4736 dinate, edge flag, or color, you can prespecify separate arrays
4737 of vertices, normals, and colors and use them to construct a se‐
4738 quence of primitives with a single call to gl:multiDrawArrays/3.
4739 External documentation.
4741 multiDrawArraysIndirect(Mode :: enum(),
4743 Indirect :: offset() | mem(),
4744 Drawcount :: i(),
4745 Stride :: i()) ->
4746 ok
4747 gl:multiDrawArraysIndirect/4 specifies multiple geometric primi‐
4749 tives with very few subroutine calls. gl:multiDrawArraysIndi‐
4750 rect/4 behaves similarly to a multitude of calls to gl:drawAr‐
4751 raysInstancedBaseInstance/5, execept that the parameters to each
4752 call to gl:drawArraysInstancedBaseInstance/5 are stored in an
4753 array in memory at the address given by Indirect, separated by
4754 the stride, in basic machine units, specified by Stride. If
4755 Stride is zero, then the array is assumed to be tightly packed
4756 in memory.
4757 External documentation.
4759 multiDrawArraysIndirectCount(Mode, Indirect, Drawcount,
4761 Maxdrawcount, Stride) ->
4762 ok
4763 Types:
4765 Mode = enum()
4767 Indirect = offset() | mem()
4768 Drawcount = Maxdrawcount = Stride = i()
4769 No documentation available.
4771 multiTexCoord1d(Target :: enum(), S :: f()) -> ok
4773 multiTexCoord1dv(Target :: enum(), X2 :: {S :: f()}) -> ok
4775 multiTexCoord1f(Target :: enum(), S :: f()) -> ok
4777 multiTexCoord1fv(Target :: enum(), X2 :: {S :: f()}) -> ok
4779 multiTexCoord1i(Target :: enum(), S :: i()) -> ok
4781 multiTexCoord1iv(Target :: enum(), X2 :: {S :: i()}) -> ok
4783 multiTexCoord1s(Target :: enum(), S :: i()) -> ok
4785 multiTexCoord1sv(Target :: enum(), X2 :: {S :: i()}) -> ok
4787 multiTexCoord2d(Target :: enum(), S :: f(), T :: f()) -> ok
4789 multiTexCoord2dv(Target :: enum(), X2 :: {S :: f(), T :: f()}) ->
4791 ok
4792 multiTexCoord2f(Target :: enum(), S :: f(), T :: f()) -> ok
4794 multiTexCoord2fv(Target :: enum(), X2 :: {S :: f(), T :: f()}) ->
4796 ok
4797 multiTexCoord2i(Target :: enum(), S :: i(), T :: i()) -> ok
4799 multiTexCoord2iv(Target :: enum(), X2 :: {S :: i(), T :: i()}) ->
4801 ok
4802 multiTexCoord2s(Target :: enum(), S :: i(), T :: i()) -> ok
4804 multiTexCoord2sv(Target :: enum(), X2 :: {S :: i(), T :: i()}) ->
4806 ok
4807 multiTexCoord3d(Target :: enum(), S :: f(), T :: f(), R :: f()) ->
4809 ok
4810 multiTexCoord3dv(Target :: enum(),
4812 X2 :: {S :: f(), T :: f(), R :: f()}) ->
4813 ok
4814 multiTexCoord3f(Target :: enum(), S :: f(), T :: f(), R :: f()) ->
4816 ok
4817 multiTexCoord3fv(Target :: enum(),
4819 X2 :: {S :: f(), T :: f(), R :: f()}) ->
4820 ok
4821 multiTexCoord3i(Target :: enum(), S :: i(), T :: i(), R :: i()) ->
4823 ok
4824 multiTexCoord3iv(Target :: enum(),
4826 X2 :: {S :: i(), T :: i(), R :: i()}) ->
4827 ok
4828 multiTexCoord3s(Target :: enum(), S :: i(), T :: i(), R :: i()) ->
4830 ok
4831 multiTexCoord3sv(Target :: enum(),
4833 X2 :: {S :: i(), T :: i(), R :: i()}) ->
4834 ok
4835 multiTexCoord4d(Target :: enum(),
4837 S :: f(),
4838 T :: f(),
4839 R :: f(),
4840 Q :: f()) ->
4841 ok
4842 multiTexCoord4dv(Target :: enum(),
4844 X2 :: {S :: f(), T :: f(), R :: f(), Q :: f()}) ->
4845 ok
4846 multiTexCoord4f(Target :: enum(),
4848 S :: f(),
4849 T :: f(),
4850 R :: f(),
4851 Q :: f()) ->
4852 ok
4853 multiTexCoord4fv(Target :: enum(),
4855 X2 :: {S :: f(), T :: f(), R :: f(), Q :: f()}) ->
4856 ok
4857 multiTexCoord4i(Target :: enum(),
4859 S :: i(),
4860 T :: i(),
4861 R :: i(),
4862 Q :: i()) ->
4863 ok
4864 multiTexCoord4iv(Target :: enum(),
4866 X2 :: {S :: i(), T :: i(), R :: i(), Q :: i()}) ->
4867 ok
4868 multiTexCoord4s(Target :: enum(),
4870 S :: i(),
4871 T :: i(),
4872 R :: i(),
4873 Q :: i()) ->
4874 ok
4875 multiTexCoord4sv(Target :: enum(),
4877 X2 :: {S :: i(), T :: i(), R :: i(), Q :: i()}) ->
4878 ok
4879 gl:multiTexCoord() specifies texture coordinates in one, two,
4881 three, or four dimensions. gl:multiTexCoord1() sets the current
4882 texture coordinates to (s 0 0 1); a call to gl:multiTexCoord2()
4883 sets them to (s t 0 1). Similarly, gl:multiTexCoord3() specifies
4884 the texture coordinates as (s t r 1), and gl:multiTexCoord4()
4885 defines all four components explicitly as (s t r q).
4886 External documentation.
4888 newList(List :: i(), Mode :: enum()) -> ok
4890 Display lists are groups of GL commands that have been stored
4892 for subsequent execution. Display lists are created with
4893 gl:newList/2. All subsequent commands are placed in the display
4894 list, in the order issued, until gl:endList/0 is called.
4895 External documentation.
4897 normal3b(Nx :: i(), Ny :: i(), Nz :: i()) -> ok
4899 normal3bv(X1 :: {Nx :: i(), Ny :: i(), Nz :: i()}) -> ok
4901 normal3d(Nx :: f(), Ny :: f(), Nz :: f()) -> ok
4903 normal3dv(X1 :: {Nx :: f(), Ny :: f(), Nz :: f()}) -> ok
4905 normal3f(Nx :: f(), Ny :: f(), Nz :: f()) -> ok
4907 normal3fv(X1 :: {Nx :: f(), Ny :: f(), Nz :: f()}) -> ok
4909 normal3i(Nx :: i(), Ny :: i(), Nz :: i()) -> ok
4911 normal3iv(X1 :: {Nx :: i(), Ny :: i(), Nz :: i()}) -> ok
4913 normal3s(Nx :: i(), Ny :: i(), Nz :: i()) -> ok
4915 normal3sv(X1 :: {Nx :: i(), Ny :: i(), Nz :: i()}) -> ok
4917 The current normal is set to the given coordinates whenever
4919 gl:normal() is issued. Byte, short, or integer arguments are
4920 converted to floating-point format with a linear mapping that
4921 maps the most positive representable integer value to 1.0 and
4922 the most negative representable integer value to -1.0.
4923 External documentation.
4925 normalPointer(Type :: enum(),
4927 Stride :: i(),
4928 Ptr :: offset() | mem()) ->
4929 ok
4930 gl:normalPointer/3 specifies the location and data format of an
4932 array of normals to use when rendering. Type specifies the data
4933 type of each normal coordinate, and Stride specifies the byte
4934 stride from one normal to the next, allowing vertices and at‐
4935 tributes to be packed into a single array or stored in separate
4936 arrays. (Single-array storage may be more efficient on some im‐
4937 plementations; see gl:interleavedArrays/3.)
4938 External documentation.
4940 objectPtrLabel(Ptr :: offset() | mem(),
4942 Length :: i(),
4943 Label :: string()) ->
4944 ok
4945 gl:objectPtrLabel/3 labels the sync object identified by Ptr.
4947 External documentation.
4949 ortho(Left :: f(),
4951 Right :: f(),
4952 Bottom :: f(),
4953 Top :: f(),
4954 Near_val :: f(),
4955 Far_val :: f()) ->
4956 ok
4957 gl:ortho/6 describes a transformation that produces a parallel
4959 projection. The current matrix (see gl:matrixMode/1) is multi‐
4960 plied by this matrix and the result replaces the current matrix,
4961 as if gl:multMatrix() were called with the following matrix as
4962 its argument:
4963 External documentation.
4965 passThrough(Token :: f()) -> ok
4967 External documentation.
4969 patchParameterfv(Pname :: enum(), Values :: [f()]) -> ok
4971 patchParameteri(Pname :: enum(), Value :: i()) -> ok
4973 gl:patchParameter() specifies the parameters that will be used
4975 for patch primitives. Pname specifies the parameter to modify
4976 and must be either ?GL_PATCH_VERTICES, ?GL_PATCH_DE‐
4977 FAULT_OUTER_LEVEL or ?GL_PATCH_DEFAULT_INNER_LEVEL. For
4978 gl:patchParameteri/2, Value specifies the new value for the pa‐
4979 rameter specified by Pname. For gl:patchParameterfv/2, Values
4980 specifies the address of an array containing the new values for
4981 the parameter specified by Pname.
4982 External documentation.
4984 pauseTransformFeedback() -> ok
4986 gl:pauseTransformFeedback/0 pauses transform feedback operations
4988 on the currently active transform feedback object. When trans‐
4989 form feedback operations are paused, transform feedback is still
4990 considered active and changing most transform feedback state re‐
4991 lated to the object results in an error. However, a new trans‐
4992 form feedback object may be bound while transform feedback is
4993 paused.
4994 External documentation.
4996 pixelMapfv(Map :: enum(), Mapsize :: i(), Values :: binary()) ->
4998 ok
4999 pixelMapuiv(Map :: enum(), Mapsize :: i(), Values :: binary()) ->
5001 ok
5002 pixelMapusv(Map :: enum(), Mapsize :: i(), Values :: binary()) ->
5004 ok
5005 gl:pixelMap() sets up translation tables, or maps, used by
5007 gl:copyPixels/5, gl:copyTexImage1D/7, gl:copyTexImage2D/8,
5008 gl:copyTexSubImage1D/6, gl:copyTexSubImage2D/8, gl:copyTexSubIm‐
5009 age3D/9, gl:drawPixels/5, gl:readPixels/7, gl:texImage1D/8,
5010 gl:texImage2D/9, gl:texImage3D/10, gl:texSubImage1D/7, gl:tex‐
5011 SubImage2D/9, and gl:texSubImage3D/11. Additionally, if the
5012 ARB_imaging subset is supported, the routines gl:colorTable/6,
5013 gl:colorSubTable/6, gl:convolutionFilter1D/6, gl:convolutionFil‐
5014 ter2D/7, gl:histogram/4, gl:minmax/3, and gl:separable‐
5015 Filter2D/8. Use of these maps is described completely in the
5016 gl:pixelTransfer() reference page, and partly in the reference
5017 pages for the pixel and texture image commands. Only the speci‐
5018 fication of the maps is described in this reference page.
5019 External documentation.
5021 pixelStoref(Pname :: enum(), Param :: f()) -> ok
5023 pixelStorei(Pname :: enum(), Param :: i()) -> ok
5025 gl:pixelStore() sets pixel storage modes that affect the opera‐
5027 tion of subsequent gl:readPixels/7 as well as the unpacking of
5028 texture patterns (see gl:texImage1D/8, gl:texImage2D/9, gl:tex‐
5029 Image3D/10, gl:texSubImage1D/7, gl:texSubImage2D/9, gl:texSubIm‐
5030 age3D/11), gl:compressedTexImage1D/7, gl:compressedTexImage2D/8,
5031 gl:compressedTexImage3D/9, gl:compressedTexSubImage1D/7, gl:com‐
5032 pressedTexSubImage2D/9 or gl:compressedTexSubImage1D/7.
5033 External documentation.
5035 pixelTransferf(Pname :: enum(), Param :: f()) -> ok
5037 pixelTransferi(Pname :: enum(), Param :: i()) -> ok
5039 gl:pixelTransfer() sets pixel transfer modes that affect the op‐
5041 eration of subsequent gl:copyPixels/5, gl:copyTexImage1D/7,
5042 gl:copyTexImage2D/8, gl:copyTexSubImage1D/6, gl:copyTexSubIm‐
5043 age2D/8, gl:copyTexSubImage3D/9, gl:drawPixels/5, gl:readPix‐
5044 els/7, gl:texImage1D/8, gl:texImage2D/9, gl:texImage3D/10,
5045 gl:texSubImage1D/7, gl:texSubImage2D/9, and gl:texSubImage3D/11
5046 commands. Additionally, if the ARB_imaging subset is supported,
5047 the routines gl:colorTable/6, gl:colorSubTable/6, gl:convolu‐
5048 tionFilter1D/6, gl:convolutionFilter2D/7, gl:histogram/4,
5049 gl:minmax/3, and gl:separableFilter2D/8 are also affected. The
5050 algorithms that are specified by pixel transfer modes operate on
5051 pixels after they are read from the frame buffer (gl:copyPix‐
5052 els/5gl:copyTexImage1D/7, gl:copyTexImage2D/8, gl:copyTexSubIm‐
5053 age1D/6, gl:copyTexSubImage2D/8, gl:copyTexSubImage3D/9, and
5054 gl:readPixels/7), or unpacked from client memory (gl:drawPix‐
5055 els/5, gl:texImage1D/8, gl:texImage2D/9, gl:texImage3D/10,
5056 gl:texSubImage1D/7, gl:texSubImage2D/9, and gl:texSubIm‐
5057 age3D/11). Pixel transfer operations happen in the same order,
5058 and in the same manner, regardless of the command that resulted
5059 in the pixel operation. Pixel storage modes (see gl:pixel‐
5060 Store()) control the unpacking of pixels being read from client
5061 memory and the packing of pixels being written back into client
5062 memory.
5063 External documentation.
5065 pixelZoom(Xfactor :: f(), Yfactor :: f()) -> ok
5067 gl:pixelZoom/2 specifies values for the x and y zoom factors.
5069 During the execution of gl:drawPixels/5 or gl:copyPixels/5, if (
5070 xr, yr) is the current raster position, and a given element is
5071 in the mth row and nth column of the pixel rectangle, then pix‐
5072 els whose centers are in the rectangle with corners at
5073 External documentation.
5075 pointParameterf(Pname :: enum(), Param :: f()) -> ok
5077 pointParameterfv(Pname :: enum(), Params :: tuple()) -> ok
5079 pointParameteri(Pname :: enum(), Param :: i()) -> ok
5081 pointParameteriv(Pname :: enum(), Params :: tuple()) -> ok
5083 The following values are accepted for Pname:
5085 External documentation.
5087 pointSize(Size :: f()) -> ok
5089 gl:pointSize/1 specifies the rasterized diameter of points. If
5091 point size mode is disabled (see gl:enable/1 with parameter
5092 ?GL_PROGRAM_POINT_SIZE), this value will be used to rasterize
5093 points. Otherwise, the value written to the shading language
5094 built-in variable gl_PointSize will be used.
5095 External documentation.
5097 polygonMode(Face :: enum(), Mode :: enum()) -> ok
5099 gl:polygonMode/2 controls the interpretation of polygons for
5101 rasterization. Face describes which polygons Mode applies to:
5102 both front and back-facing polygons (?GL_FRONT_AND_BACK). The
5103 polygon mode affects only the final rasterization of polygons.
5104 In particular, a polygon's vertices are lit and the polygon is
5105 clipped and possibly culled before these modes are applied.
5106 External documentation.
5108 polygonOffset(Factor :: f(), Units :: f()) -> ok
5110 When ?GL_POLYGON_OFFSET_FILL, ?GL_POLYGON_OFFSET_LINE, or
5112 ?GL_POLYGON_OFFSET_POINT is enabled, each fragment's depth value
5113 will be offset after it is interpolated from the depth values of
5114 the appropriate vertices. The value of the offset is fac‐
5115 tor×DZ+r×units, where DZ is a measurement of the change in depth
5116 relative to the screen area of the polygon, and r is the small‐
5117 est value that is guaranteed to produce a resolvable offset for
5118 a given implementation. The offset is added before the depth
5119 test is performed and before the value is written into the depth
5120 buffer.
5121 External documentation.
5123 polygonOffsetClamp(Factor :: f(), Units :: f(), Clamp :: f()) ->
5125 ok
5126 No documentation available.
5128 polygonStipple(Mask :: binary()) -> ok
5130 Polygon stippling, like line stippling (see gl:lineStipple/2),
5132 masks out certain fragments produced by rasterization, creating
5133 a pattern. Stippling is independent of polygon antialiasing.
5134 External documentation.
5136 primitiveBoundingBoxARB(MinX, MinY, MinZ, MinW, MaxX, MaxY, MaxZ,
5138 MaxW) ->
5139 ok
5140 Types:
5142 MinX = MinY = MinZ = MinW = MaxX = MaxY = MaxZ = MaxW = f()
5144 No documentation available.
5146 primitiveRestartIndex(Index :: i()) -> ok
5148 gl:primitiveRestartIndex/1 specifies a vertex array element that
5150 is treated specially when primitive restarting is enabled. This
5151 is known as the primitive restart index.
5152 External documentation.
5154 prioritizeTextures(Textures :: [i()], Priorities :: [clamp()]) ->
5156 ok
5157 gl:prioritizeTextures/2 assigns the N texture priorities given
5159 in Priorities to the N textures named in Textures.
5160 External documentation.
5162 programBinary(Program :: i(),
5164 BinaryFormat :: enum(),
5165 Binary :: binary()) ->
5166 ok
5167 gl:programBinary/3 loads a program object with a program binary
5169 previously returned from gl:getProgramBinary/2. BinaryFormat and
5170 Binary must be those returned by a previous call to gl:getPro‐
5171 gramBinary/2, and Length must be the length returned by gl:get‐
5172 ProgramBinary/2, or by gl:getProgram() when called with Pname
5173 set to ?GL_PROGRAM_BINARY_LENGTH. If these conditions are not
5174 met, loading the program binary will fail and Program's
5175 ?GL_LINK_STATUS will be set to ?GL_FALSE.
5176 External documentation.
5178 programEnvParameter4dARB(Target :: enum(),
5180 Index :: i(),
5181 X :: f(),
5182 Y :: f(),
5183 Z :: f(),
5184 W :: f()) ->
5185 ok
5186 programEnvParameter4dvARB(Target :: enum(),
5188 Index :: i(),
5189 Params :: {f(), f(), f(), f()}) ->
5190 ok
5191 programEnvParameter4fARB(Target :: enum(),
5193 Index :: i(),
5194 X :: f(),
5195 Y :: f(),
5196 Z :: f(),
5197 W :: f()) ->
5198 ok
5199 programEnvParameter4fvARB(Target :: enum(),
5201 Index :: i(),
5202 Params :: {f(), f(), f(), f()}) ->
5203 ok
5204 No documentation available.
5206 programLocalParameter4dARB(Target :: enum(),
5208 Index :: i(),
5209 X :: f(),
5210 Y :: f(),
5211 Z :: f(),
5212 W :: f()) ->
5213 ok
5214 programLocalParameter4dvARB(Target :: enum(),
5216 Index :: i(),
5217 Params :: {f(), f(), f(), f()}) ->
5218 ok
5219 programLocalParameter4fARB(Target :: enum(),
5221 Index :: i(),
5222 X :: f(),
5223 Y :: f(),
5224 Z :: f(),
5225 W :: f()) ->
5226 ok
5227 programLocalParameter4fvARB(Target :: enum(),
5229 Index :: i(),
5230 Params :: {f(), f(), f(), f()}) ->
5231 ok
5232 No documentation available.
5234 programParameteri(Program :: i(), Pname :: enum(), Value :: i()) ->
5236 ok
5237 gl:programParameter() specifies a new value for the parameter
5239 nameed by Pname for the program object Program.
5240 External documentation.
5242 programStringARB(Target :: enum(),
5244 Format :: enum(),
5245 String :: string()) ->
5246 ok
5247 No documentation available.
5249 programUniform1d(Program :: i(), Location :: i(), V0 :: f()) -> ok
5251 programUniform1dv(Program :: i(), Location :: i(), Value :: [f()]) ->
5253 ok
5254 programUniform1f(Program :: i(), Location :: i(), V0 :: f()) -> ok
5256 programUniform1fv(Program :: i(), Location :: i(), Value :: [f()]) ->
5258 ok
5259 programUniform1i(Program :: i(), Location :: i(), V0 :: i()) -> ok
5261 programUniform1iv(Program :: i(), Location :: i(), Value :: [i()]) ->
5263 ok
5264 programUniform1ui(Program :: i(), Location :: i(), V0 :: i()) ->
5266 ok
5267 programUniform1uiv(Program :: i(),
5269 Location :: i(),
5270 Value :: [i()]) ->
5271 ok
5272 programUniform2d(Program :: i(),
5274 Location :: i(),
5275 V0 :: f(),
5276 V1 :: f()) ->
5277 ok
5278 programUniform2dv(Program :: i(),
5280 Location :: i(),
5281 Value :: [{f(), f()}]) ->
5282 ok
5283 programUniform2f(Program :: i(),
5285 Location :: i(),
5286 V0 :: f(),
5287 V1 :: f()) ->
5288 ok
5289 programUniform2fv(Program :: i(),
5291 Location :: i(),
5292 Value :: [{f(), f()}]) ->
5293 ok
5294 programUniform2i(Program :: i(),
5296 Location :: i(),
5297 V0 :: i(),
5298 V1 :: i()) ->
5299 ok
5300 programUniform2iv(Program :: i(),
5302 Location :: i(),
5303 Value :: [{i(), i()}]) ->
5304 ok
5305 programUniform2ui(Program :: i(),
5307 Location :: i(),
5308 V0 :: i(),
5309 V1 :: i()) ->
5310 ok
5311 programUniform2uiv(Program :: i(),
5313 Location :: i(),
5314 Value :: [{i(), i()}]) ->
5315 ok
5316 programUniform3d(Program :: i(),
5318 Location :: i(),
5319 V0 :: f(),
5320 V1 :: f(),
5321 V2 :: f()) ->
5322 ok
5323 programUniform3dv(Program :: i(),
5325 Location :: i(),
5326 Value :: [{f(), f(), f()}]) ->
5327 ok
5328 programUniform3f(Program :: i(),
5330 Location :: i(),
5331 V0 :: f(),
5332 V1 :: f(),
5333 V2 :: f()) ->
5334 ok
5335 programUniform3fv(Program :: i(),
5337 Location :: i(),
5338 Value :: [{f(), f(), f()}]) ->
5339 ok
5340 programUniform3i(Program :: i(),
5342 Location :: i(),
5343 V0 :: i(),
5344 V1 :: i(),
5345 V2 :: i()) ->
5346 ok
5347 programUniform3iv(Program :: i(),
5349 Location :: i(),
5350 Value :: [{i(), i(), i()}]) ->
5351 ok
5352 programUniform3ui(Program :: i(),
5354 Location :: i(),
5355 V0 :: i(),
5356 V1 :: i(),
5357 V2 :: i()) ->
5358 ok
5359 programUniform3uiv(Program :: i(),
5361 Location :: i(),
5362 Value :: [{i(), i(), i()}]) ->
5363 ok
5364 programUniform4d(Program :: i(),
5366 Location :: i(),
5367 V0 :: f(),
5368 V1 :: f(),
5369 V2 :: f(),
5370 V3 :: f()) ->
5371 ok
5372 programUniform4dv(Program :: i(),
5374 Location :: i(),
5375 Value :: [{f(), f(), f(), f()}]) ->
5376 ok
5377 programUniform4f(Program :: i(),
5379 Location :: i(),
5380 V0 :: f(),
5381 V1 :: f(),
5382 V2 :: f(),
5383 V3 :: f()) ->
5384 ok
5385 programUniform4fv(Program :: i(),
5387 Location :: i(),
5388 Value :: [{f(), f(), f(), f()}]) ->
5389 ok
5390 programUniform4i(Program :: i(),
5392 Location :: i(),
5393 V0 :: i(),
5394 V1 :: i(),
5395 V2 :: i(),
5396 V3 :: i()) ->
5397 ok
5398 programUniform4iv(Program :: i(),
5400 Location :: i(),
5401 Value :: [{i(), i(), i(), i()}]) ->
5402 ok
5403 programUniform4ui(Program :: i(),
5405 Location :: i(),
5406 V0 :: i(),
5407 V1 :: i(),
5408 V2 :: i(),
5409 V3 :: i()) ->
5410 ok
5411 programUniform4uiv(Program :: i(),
5413 Location :: i(),
5414 Value :: [{i(), i(), i(), i()}]) ->
5415 ok
5416 programUniformMatrix2dv(Program :: i(),
5418 Location :: i(),
5419 Transpose :: 0 | 1,
5420 Value :: [{f(), f(), f(), f()}]) ->
5421 ok
5422 programUniformMatrix2fv(Program :: i(),
5424 Location :: i(),
5425 Transpose :: 0 | 1,
5426 Value :: [{f(), f(), f(), f()}]) ->
5427 ok
5428 programUniformMatrix2x3dv(Program :: i(),
5430 Location :: i(),
5431 Transpose :: 0 | 1,
5432 Value ::
5433 [{f(), f(), f(), f(), f(), f()}]) ->
5434 ok
5435 programUniformMatrix2x3fv(Program :: i(),
5437 Location :: i(),
5438 Transpose :: 0 | 1,
5439 Value ::
5440 [{f(), f(), f(), f(), f(), f()}]) ->
5441 ok
5442 programUniformMatrix2x4dv(Program, Location, Transpose, Value) ->
5444 ok
5445 programUniformMatrix2x4fv(Program, Location, Transpose, Value) ->
5447 ok
5448 programUniformMatrix3dv(Program, Location, Transpose, Value) -> ok
5450 programUniformMatrix3fv(Program, Location, Transpose, Value) -> ok
5452 programUniformMatrix3x2dv(Program :: i(),
5454 Location :: i(),
5455 Transpose :: 0 | 1,
5456 Value ::
5457 [{f(), f(), f(), f(), f(), f()}]) ->
5458 ok
5459 programUniformMatrix3x2fv(Program :: i(),
5461 Location :: i(),
5462 Transpose :: 0 | 1,
5463 Value ::
5464 [{f(), f(), f(), f(), f(), f()}]) ->
5465 ok
5466 programUniformMatrix3x4dv(Program, Location, Transpose, Value) ->
5468 ok
5469 programUniformMatrix3x4fv(Program, Location, Transpose, Value) ->
5471 ok
5472 programUniformMatrix4dv(Program, Location, Transpose, Value) -> ok
5474 programUniformMatrix4fv(Program, Location, Transpose, Value) -> ok
5476 programUniformMatrix4x2dv(Program, Location, Transpose, Value) ->
5478 ok
5479 programUniformMatrix4x2fv(Program, Location, Transpose, Value) ->
5481 ok
5482 programUniformMatrix4x3dv(Program, Location, Transpose, Value) ->
5484 ok
5485 programUniformMatrix4x3fv(Program, Location, Transpose, Value) ->
5487 ok
5488 Types:
5490 Program = Location = i()
5492 Transpose = 0 | 1
5493 Value =
5494 [{f(), f(), f(), f(), f(), f(), f(), f(), f(), f(), f(),
5495 f()}]
5496 gl:programUniform() modifies the value of a uniform variable or
5498 a uniform variable array. The location of the uniform variable
5499 to be modified is specified by Location, which should be a value
5500 returned by gl:getUniformLocation/2. gl:programUniform() oper‐
5501 ates on the program object specified by Program.
5502 External documentation.
5504 programUniform1i64vARB(Program :: i(),
5506 Location :: i(),
5507 Value :: [i()]) ->
5508 ok
5509 No documentation available.
5511 programUniform1i64ARB(Program :: i(), Location :: i(), X :: i()) ->
5513 ok
5514 No documentation available.
5516 programUniform1ui64vARB(Program :: i(),
5518 Location :: i(),
5519 Value :: [i()]) ->
5520 ok
5521 No documentation available.
5523 programUniform1ui64ARB(Program :: i(), Location :: i(), X :: i()) ->
5525 ok
5526 No documentation available.
5528 programUniform2i64vARB(Program :: i(),
5530 Location :: i(),
5531 Value :: [{i(), i()}]) ->
5532 ok
5533 No documentation available.
5535 programUniform2i64ARB(Program :: i(),
5537 Location :: i(),
5538 X :: i(),
5539 Y :: i()) ->
5540 ok
5541 No documentation available.
5543 programUniform2ui64vARB(Program :: i(),
5545 Location :: i(),
5546 Value :: [{i(), i()}]) ->
5547 ok
5548 No documentation available.
5550 programUniform2ui64ARB(Program :: i(),
5552 Location :: i(),
5553 X :: i(),
5554 Y :: i()) ->
5555 ok
5556 No documentation available.
5558 programUniform3i64vARB(Program :: i(),
5560 Location :: i(),
5561 Value :: [{i(), i(), i()}]) ->
5562 ok
5563 No documentation available.
5565 programUniform3i64ARB(Program :: i(),
5567 Location :: i(),
5568 X :: i(),
5569 Y :: i(),
5570 Z :: i()) ->
5571 ok
5572 No documentation available.
5574 programUniform3ui64vARB(Program :: i(),
5576 Location :: i(),
5577 Value :: [{i(), i(), i()}]) ->
5578 ok
5579 No documentation available.
5581 programUniform3ui64ARB(Program :: i(),
5583 Location :: i(),
5584 X :: i(),
5585 Y :: i(),
5586 Z :: i()) ->
5587 ok
5588 No documentation available.
5590 programUniform4i64vARB(Program :: i(),
5592 Location :: i(),
5593 Value :: [{i(), i(), i(), i()}]) ->
5594 ok
5595 No documentation available.
5597 programUniform4i64ARB(Program :: i(),
5599 Location :: i(),
5600 X :: i(),
5601 Y :: i(),
5602 Z :: i(),
5603 W :: i()) ->
5604 ok
5605 No documentation available.
5607 programUniform4ui64vARB(Program :: i(),
5609 Location :: i(),
5610 Value :: [{i(), i(), i(), i()}]) ->
5611 ok
5612 No documentation available.
5614 programUniform4ui64ARB(Program :: i(),
5616 Location :: i(),
5617 X :: i(),
5618 Y :: i(),
5619 Z :: i(),
5620 W :: i()) ->
5621 ok
5622 No documentation available.
5624 programUniformHandleui64ARB(Program :: i(),
5626 Location :: i(),
5627 Value :: i()) ->
5628 ok
5629 No documentation available.
5631 provokingVertex(Mode :: enum()) -> ok
5633 Flatshading a vertex shader varying output means to assign all
5635 vetices of the primitive the same value for that output. The
5636 vertex from which these values is derived is known as the pro‐
5637 voking vertex and gl:provokingVertex/1 specifies which vertex is
5638 to be used as the source of data for flat shaded varyings.
5639 External documentation.
5641 popAttrib() -> ok
5643 pushAttrib(Mask :: i()) -> ok
5645 gl:pushAttrib/1 takes one argument, a mask that indicates which
5647 groups of state variables to save on the attribute stack. Sym‐
5648 bolic constants are used to set bits in the mask. Mask is typi‐
5649 cally constructed by specifying the bitwise-or of several of
5650 these constants together. The special mask ?GL_ALL_ATTRIB_BITS
5651 can be used to save all stackable states.
5652 External documentation.
5654 popClientAttrib() -> ok
5656 pushClientAttrib(Mask :: i()) -> ok
5658 gl:pushClientAttrib/1 takes one argument, a mask that indicates
5660 which groups of client-state variables to save on the client at‐
5661 tribute stack. Symbolic constants are used to set bits in the
5662 mask. Mask is typically constructed by specifying the bitwise-or
5663 of several of these constants together. The special mask
5664 ?GL_CLIENT_ALL_ATTRIB_BITS can be used to save all stackable
5665 client state.
5666 External documentation.
5668 popDebugGroup() -> ok
5670 pushDebugGroup(Source :: enum(),
5672 Id :: i(),
5673 Length :: i(),
5674 Message :: string()) ->
5675 ok
5676 gl:pushDebugGroup/4 pushes a debug group described by the string
5678 Message into the command stream. The value of Id specifies the
5679 ID of messages generated. The parameter Length contains the num‐
5680 ber of characters in Message. If Length is negative, it is im‐
5681 plied that Message contains a null terminated string. The mes‐
5682 sage has the specified Source and Id, the Type?GL_DE‐
5683 BUG_TYPE_PUSH_GROUP, and Severity?GL_DEBUG_SEVERITY_NOTIFICA‐
5684 TION. The GL will put a new debug group on top of the debug
5685 group stack which inherits the control of the volume of debug
5686 output of the debug group previously residing on the top of the
5687 debug group stack. Because debug groups are strictly hierarchi‐
5688 cal, any additional control of the debug output volume will only
5689 apply within the active debug group and the debug groups pushed
5690 on top of the active debug group.
5691 External documentation.
5693 popMatrix() -> ok
5695 pushMatrix() -> ok
5697 There is a stack of matrices for each of the matrix modes. In
5699 ?GL_MODELVIEW mode, the stack depth is at least 32. In the other
5700 modes, ?GL_COLOR, ?GL_PROJECTION, and ?GL_TEXTURE, the depth is
5701 at least 2. The current matrix in any mode is the matrix on the
5702 top of the stack for that mode.
5703 External documentation.
5705 popName() -> ok
5707 pushName(Name :: i()) -> ok
5709 The name stack is used during selection mode to allow sets of
5711 rendering commands to be uniquely identified. It consists of an
5712 ordered set of unsigned integers and is initially empty.
5713 External documentation.
5715 queryCounter(Id :: i(), Target :: enum()) -> ok
5717 gl:queryCounter/2 causes the GL to record the current time into
5719 the query object named Id. Target must be ?GL_TIMESTAMP. The
5720 time is recorded after all previous commands on the GL client
5721 and server state and the framebuffer have been fully realized.
5722 When the time is recorded, the query result for that object is
5723 marked available. gl:queryCounter/2 timer queries can be used
5724 within a gl:beginQuery/2 / gl:endQuery/1 block where the target
5725 is ?GL_TIME_ELAPSED and it does not affect the result of that
5726 query object.
5727 External documentation.
5729 rasterPos2d(X :: f(), Y :: f()) -> ok
5731 rasterPos2dv(X1 :: {X :: f(), Y :: f()}) -> ok
5733 rasterPos2f(X :: f(), Y :: f()) -> ok
5735 rasterPos2fv(X1 :: {X :: f(), Y :: f()}) -> ok
5737 rasterPos2i(X :: i(), Y :: i()) -> ok
5739 rasterPos2iv(X1 :: {X :: i(), Y :: i()}) -> ok
5741 rasterPos2s(X :: i(), Y :: i()) -> ok
5743 rasterPos2sv(X1 :: {X :: i(), Y :: i()}) -> ok
5745 rasterPos3d(X :: f(), Y :: f(), Z :: f()) -> ok
5747 rasterPos3dv(X1 :: {X :: f(), Y :: f(), Z :: f()}) -> ok
5749 rasterPos3f(X :: f(), Y :: f(), Z :: f()) -> ok
5751 rasterPos3fv(X1 :: {X :: f(), Y :: f(), Z :: f()}) -> ok
5753 rasterPos3i(X :: i(), Y :: i(), Z :: i()) -> ok
5755 rasterPos3iv(X1 :: {X :: i(), Y :: i(), Z :: i()}) -> ok
5757 rasterPos3s(X :: i(), Y :: i(), Z :: i()) -> ok
5759 rasterPos3sv(X1 :: {X :: i(), Y :: i(), Z :: i()}) -> ok
5761 rasterPos4d(X :: f(), Y :: f(), Z :: f(), W :: f()) -> ok
5763 rasterPos4dv(X1 :: {X :: f(), Y :: f(), Z :: f(), W :: f()}) -> ok
5765 rasterPos4f(X :: f(), Y :: f(), Z :: f(), W :: f()) -> ok
5767 rasterPos4fv(X1 :: {X :: f(), Y :: f(), Z :: f(), W :: f()}) -> ok
5769 rasterPos4i(X :: i(), Y :: i(), Z :: i(), W :: i()) -> ok
5771 rasterPos4iv(X1 :: {X :: i(), Y :: i(), Z :: i(), W :: i()}) -> ok
5773 rasterPos4s(X :: i(), Y :: i(), Z :: i(), W :: i()) -> ok
5775 rasterPos4sv(X1 :: {X :: i(), Y :: i(), Z :: i(), W :: i()}) -> ok
5777 The GL maintains a 3D position in window coordinates. This posi‐
5779 tion, called the raster position, is used to position pixel and
5780 bitmap write operations. It is maintained with subpixel accu‐
5781 racy. See gl:bitmap/7, gl:drawPixels/5, and gl:copyPixels/5.
5782 External documentation.
5784 readBuffer(Mode :: enum()) -> ok
5786 gl:readBuffer/1 specifies a color buffer as the source for sub‐
5788 sequent gl:readPixels/7, gl:copyTexImage1D/7, gl:copyTexIm‐
5789 age2D/8, gl:copyTexSubImage1D/6, gl:copyTexSubImage2D/8, and
5790 gl:copyTexSubImage3D/9 commands. Mode accepts one of twelve or
5791 more predefined values. In a fully configured system, ?GL_FRONT,
5792 ?GL_LEFT, and ?GL_FRONT_LEFT all name the front left buffer,
5793 ?GL_FRONT_RIGHT and ?GL_RIGHT name the front right buffer, and
5794 ?GL_BACK_LEFT and ?GL_BACK name the back left buffer. Further
5795 more, the constants ?GL_COLOR_ATTACHMENTi may be used to indi‐
5796 cate the ith color attachment where i ranges from zero to the
5797 value of ?GL_MAX_COLOR_ATTACHMENTS minus one.
5798 External documentation.
5800 readPixels(X, Y, Width, Height, Format, Type, Pixels) -> ok
5802 Types:
5804 X = Y = Width = Height = i()
5806 Format = Type = enum()
5807 Pixels = mem()
5808 gl:readPixels/7 and glReadnPixels return pixel data from the
5810 frame buffer, starting with the pixel whose lower left corner is
5811 at location (X, Y), into client memory starting at location
5812 Data. Several parameters control the processing of the pixel
5813 data before it is placed into client memory. These parameters
5814 are set with gl:pixelStore(). This reference page describes the
5815 effects on gl:readPixels/7 and glReadnPixels of most, but not
5816 all of the parameters specified by these three commands.
5817 External documentation.
5819 rectd(X1 :: f(), Y1 :: f(), X2 :: f(), Y2 :: f()) -> ok
5821 rectdv(V1 :: {f(), f()}, V2 :: {f(), f()}) -> ok
5823 rectf(X1 :: f(), Y1 :: f(), X2 :: f(), Y2 :: f()) -> ok
5825 rectfv(V1 :: {f(), f()}, V2 :: {f(), f()}) -> ok
5827 recti(X1 :: i(), Y1 :: i(), X2 :: i(), Y2 :: i()) -> ok
5829 rectiv(V1 :: {i(), i()}, V2 :: {i(), i()}) -> ok
5831 rects(X1 :: i(), Y1 :: i(), X2 :: i(), Y2 :: i()) -> ok
5833 rectsv(V1 :: {i(), i()}, V2 :: {i(), i()}) -> ok
5835 gl:rect() supports efficient specification of rectangles as two
5837 corner points. Each rectangle command takes four arguments, or‐
5838 ganized either as two consecutive pairs of (x y) coordinates or
5839 as two pointers to arrays, each containing an (x y) pair. The
5840 resulting rectangle is defined in the z=0 plane.
5841 External documentation.
5843 releaseShaderCompiler() -> ok
5845 gl:releaseShaderCompiler/0 provides a hint to the implementation
5847 that it may free internal resources associated with its shader
5848 compiler. gl:compileShader/1 may subsequently be called and the
5849 implementation may at that time reallocate resources previously
5850 freed by the call to gl:releaseShaderCompiler/0.
5851 External documentation.
5853 renderMode(Mode :: enum()) -> i()
5855 gl:renderMode/1 sets the rasterization mode. It takes one argu‐
5857 ment, Mode, which can assume one of three predefined values:
5858 External documentation.
5860 renderbufferStorage(Target :: enum(),
5862 Internalformat :: enum(),
5863 Width :: i(),
5864 Height :: i()) ->
5865 ok
5866 gl:renderbufferStorage/4 is equivalent to calling gl:render‐
5868 bufferStorageMultisample/5 with the Samples set to zero, and
5869 glNamedRenderbufferStorage is equivalent to calling glNamedRen‐
5870 derbufferStorageMultisample with the samples set to zero.
5871 External documentation.
5873 renderbufferStorageMultisample(Target :: enum(),
5875 Samples :: i(),
5876 Internalformat :: enum(),
5877 Width :: i(),
5878 Height :: i()) ->
5879 ok
5880 gl:renderbufferStorageMultisample/5 and glNamedRenderbufferStor‐
5882 ageMultisample establish the data storage, format, dimensions
5883 and number of samples of a renderbuffer object's image.
5884 External documentation.
5886 resetHistogram(Target :: enum()) -> ok
5888 gl:resetHistogram/1 resets all the elements of the current his‐
5890 togram table to zero.
5891 External documentation.
5893 resetMinmax(Target :: enum()) -> ok
5895 gl:resetMinmax/1 resets the elements of the current minmax table
5897 to their initial values: the ``maximum'' element receives the
5898 minimum possible component values, and the ``minimum'' element
5899 receives the maximum possible component values.
5900 External documentation.
5902 resumeTransformFeedback() -> ok
5904 gl:resumeTransformFeedback/0 resumes transform feedback opera‐
5906 tions on the currently active transform feedback object. When
5907 transform feedback operations are paused, transform feedback is
5908 still considered active and changing most transform feedback
5909 state related to the object results in an error. However, a new
5910 transform feedback object may be bound while transform feedback
5911 is paused.
5912 External documentation.
5914 rotated(Angle :: f(), X :: f(), Y :: f(), Z :: f()) -> ok
5916 rotatef(Angle :: f(), X :: f(), Y :: f(), Z :: f()) -> ok
5918 gl:rotate() produces a rotation of Angle degrees around the vec‐
5920 tor (x y z). The current matrix (see gl:matrixMode/1) is multi‐
5921 plied by a rotation matrix with the product replacing the cur‐
5922 rent matrix, as if gl:multMatrix() were called with the follow‐
5923 ing matrix as its argument:
5924 External documentation.
5926 sampleCoverage(Value :: clamp(), Invert :: 0 | 1) -> ok
5928 Multisampling samples a pixel multiple times at various imple‐
5930 mentation-dependent subpixel locations to generate antialiasing
5931 effects. Multisampling transparently antialiases points, lines,
5932 polygons, and images if it is enabled.
5933 External documentation.
5935 sampleCoverageARB(Value :: f(), Invert :: 0 | 1) -> ok
5937 No documentation available.
5939 sampleMaski(MaskNumber :: i(), Mask :: i()) -> ok
5941 gl:sampleMaski/2 sets one 32-bit sub-word of the multi-word sam‐
5943 ple mask, ?GL_SAMPLE_MASK_VALUE.
5944 External documentation.
5946 samplerParameterIiv(Sampler :: i(),
5948 Pname :: enum(),
5949 Param :: [i()]) ->
5950 ok
5951 samplerParameterf(Sampler :: i(), Pname :: enum(), Param :: f()) ->
5953 ok
5954 samplerParameterfv(Sampler :: i(),
5956 Pname :: enum(),
5957 Param :: [f()]) ->
5958 ok
5959 samplerParameteri(Sampler :: i(), Pname :: enum(), Param :: i()) ->
5961 ok
5962 samplerParameteriv(Sampler :: i(),
5964 Pname :: enum(),
5965 Param :: [i()]) ->
5966 ok
5967 gl:samplerParameter() assigns the value or values in Params to
5969 the sampler parameter specified as Pname. Sampler specifies the
5970 sampler object to be modified, and must be the name of a sampler
5971 object previously returned from a call to gl:genSamplers/1. The
5972 following symbols are accepted in Pname:
5973 External documentation.
5975 samplerParameterIuiv(Sampler :: i(),
5977 Pname :: enum(),
5978 Param :: [i()]) ->
5979 ok
5980 No documentation available.
5982 scaled(X :: f(), Y :: f(), Z :: f()) -> ok
5984 scalef(X :: f(), Y :: f(), Z :: f()) -> ok
5986 gl:scale() produces a nonuniform scaling along the x, y, and z
5988 axes. The three parameters indicate the desired scale factor
5989 along each of the three axes.
5990 External documentation.
5992 scissor(X :: i(), Y :: i(), Width :: i(), Height :: i()) -> ok
5994 gl:scissor/4 defines a rectangle, called the scissor box, in
5996 window coordinates. The first two arguments, X and Y, specify
5997 the lower left corner of the box. Width and Height specify the
5998 width and height of the box.
5999 External documentation.
6001 scissorArrayv(First :: i(), V :: [{i(), i(), i(), i()}]) -> ok
6003 No documentation available.
6005 scissorIndexed(Index :: i(),
6007 Left :: i(),
6008 Bottom :: i(),
6009 Width :: i(),
6010 Height :: i()) ->
6011 ok
6012 scissorIndexedv(Index :: i(), V :: {i(), i(), i(), i()}) -> ok
6014 No documentation available.
6016 secondaryColor3b(Red :: i(), Green :: i(), Blue :: i()) -> ok
6018 secondaryColor3bv(X1 :: {Red :: i(), Green :: i(), Blue :: i()}) ->
6020 ok
6021 secondaryColor3d(Red :: f(), Green :: f(), Blue :: f()) -> ok
6023 secondaryColor3dv(X1 :: {Red :: f(), Green :: f(), Blue :: f()}) ->
6025 ok
6026 secondaryColor3f(Red :: f(), Green :: f(), Blue :: f()) -> ok
6028 secondaryColor3fv(X1 :: {Red :: f(), Green :: f(), Blue :: f()}) ->
6030 ok
6031 secondaryColor3i(Red :: i(), Green :: i(), Blue :: i()) -> ok
6033 secondaryColor3iv(X1 :: {Red :: i(), Green :: i(), Blue :: i()}) ->
6035 ok
6036 secondaryColor3s(Red :: i(), Green :: i(), Blue :: i()) -> ok
6038 secondaryColor3sv(X1 :: {Red :: i(), Green :: i(), Blue :: i()}) ->
6040 ok
6041 secondaryColor3ub(Red :: i(), Green :: i(), Blue :: i()) -> ok
6043 secondaryColor3ubv(X1 :: {Red :: i(), Green :: i(), Blue :: i()}) ->
6045 ok
6046 secondaryColor3ui(Red :: i(), Green :: i(), Blue :: i()) -> ok
6048 secondaryColor3uiv(X1 :: {Red :: i(), Green :: i(), Blue :: i()}) ->
6050 ok
6051 secondaryColor3us(Red :: i(), Green :: i(), Blue :: i()) -> ok
6053 secondaryColor3usv(X1 :: {Red :: i(), Green :: i(), Blue :: i()}) ->
6055 ok
6056 The GL stores both a primary four-valued RGBA color and a sec‐
6058 ondary four-valued RGBA color (where alpha is always set to 0.0)
6059 that is associated with every vertex.
6060 External documentation.
6062 secondaryColorPointer(Size :: i(),
6064 Type :: enum(),
6065 Stride :: i(),
6066 Pointer :: offset() | mem()) ->
6067 ok
6068 gl:secondaryColorPointer/4 specifies the location and data for‐
6070 mat of an array of color components to use when rendering. Size
6071 specifies the number of components per color, and must be 3.
6072 Type specifies the data type of each color component, and Stride
6073 specifies the byte stride from one color to the next, allowing
6074 vertices and attributes to be packed into a single array or
6075 stored in separate arrays.
6076 External documentation.
6078 selectBuffer(Size :: i(), Buffer :: mem()) -> ok
6080 gl:selectBuffer/2 has two arguments: Buffer is a pointer to an
6082 array of unsigned integers, and Size indicates the size of the
6083 array. Buffer returns values from the name stack (see gl:init‐
6084 Names/0, gl:loadName/1, gl:pushName/1) when the rendering mode
6085 is ?GL_SELECT (see gl:renderMode/1). gl:selectBuffer/2 must be
6086 issued before selection mode is enabled, and it must not be is‐
6087 sued while the rendering mode is ?GL_SELECT.
6088 External documentation.
6090 separableFilter2D(Target, Internalformat, Width, Height, Format,
6092 Type, Row, Column) ->
6093 ok
6094 Types:
6096 Target = Internalformat = enum()
6098 Width = Height = i()
6099 Format = Type = enum()
6100 Row = Column = offset() | mem()
6101 gl:separableFilter2D/8 builds a two-dimensional separable convo‐
6103 lution filter kernel from two arrays of pixels.
6104 External documentation.
6106 shadeModel(Mode :: enum()) -> ok
6108 GL primitives can have either flat or smooth shading. Smooth
6110 shading, the default, causes the computed colors of vertices to
6111 be interpolated as the primitive is rasterized, typically as‐
6112 signing different colors to each resulting pixel fragment. Flat
6113 shading selects the computed color of just one vertex and as‐
6114 signs it to all the pixel fragments generated by rasterizing a
6115 single primitive. In either case, the computed color of a vertex
6116 is the result of lighting if lighting is enabled, or it is the
6117 current color at the time the vertex was specified if lighting
6118 is disabled.
6119 External documentation.
6121 shaderBinary(Shaders :: [i()],
6123 Binaryformat :: enum(),
6124 Binary :: binary()) ->
6125 ok
6126 gl:shaderBinary/3 loads pre-compiled shader binary code into the
6128 Count shader objects whose handles are given in Shaders. Binary
6129 points to Length bytes of binary shader code stored in client
6130 memory. BinaryFormat specifies the format of the pre-compiled
6131 code.
6132 External documentation.
6134 shaderSource(Shader :: i(), String :: [unicode:chardata()]) -> ok
6136 gl:shaderSource/2 sets the source code in Shader to the source
6138 code in the array of strings specified by String. Any source
6139 code previously stored in the shader object is completely re‐
6140 placed. The number of strings in the array is specified by
6141 Count. If Length is ?NULL, each string is assumed to be null
6142 terminated. If Length is a value other than ?NULL, it points to
6143 an array containing a string length for each of the correspond‐
6144 ing elements of String. Each element in the Length array may
6145 contain the length of the corresponding string (the null charac‐
6146 ter is not counted as part of the string length) or a value less
6147 than 0 to indicate that the string is null terminated. The
6148 source code strings are not scanned or parsed at this time; they
6149 are simply copied into the specified shader object.
6150 External documentation.
6152 shaderSourceARB(ShaderObj :: i(), String :: [unicode:chardata()]) ->
6154 ok
6155 No documentation available.
6157 shaderStorageBlockBinding(Program :: i(),
6159 StorageBlockIndex :: i(),
6160 StorageBlockBinding :: i()) ->
6161 ok
6162 gl:shaderStorageBlockBinding/3, changes the active shader stor‐
6164 age block with an assigned index of StorageBlockIndex in program
6165 object Program. StorageBlockIndex must be an active shader stor‐
6166 age block index in Program. StorageBlockBinding must be less
6167 than the value of ?GL_MAX_SHADER_STORAGE_BUFFER_BINDINGS. If
6168 successful, gl:shaderStorageBlockBinding/3 specifies that Pro‐
6169 gram will use the data store of the buffer object bound to the
6170 binding point StorageBlockBinding to read and write the values
6171 of the buffer variables in the shader storage block identified
6172 by StorageBlockIndex.
6173 External documentation.
6175 stencilFunc(Func :: enum(), Ref :: i(), Mask :: i()) -> ok
6177 Stenciling, like depth-buffering, enables and disables drawing
6179 on a per-pixel basis. Stencil planes are first drawn into using
6180 GL drawing primitives, then geometry and images are rendered us‐
6181 ing the stencil planes to mask out portions of the screen. Sten‐
6182 ciling is typically used in multipass rendering algorithms to
6183 achieve special effects, such as decals, outlining, and con‐
6184 structive solid geometry rendering.
6185 External documentation.
6187 stencilFuncSeparate(Face :: enum(),
6189 Func :: enum(),
6190 Ref :: i(),
6191 Mask :: i()) ->
6192 ok
6193 Stenciling, like depth-buffering, enables and disables drawing
6195 on a per-pixel basis. You draw into the stencil planes using GL
6196 drawing primitives, then render geometry and images, using the
6197 stencil planes to mask out portions of the screen. Stenciling is
6198 typically used in multipass rendering algorithms to achieve spe‐
6199 cial effects, such as decals, outlining, and constructive solid
6200 geometry rendering.
6201 External documentation.
6203 stencilMask(Mask :: i()) -> ok
6205 gl:stencilMask/1 controls the writing of individual bits in the
6207 stencil planes. The least significant n bits of Mask, where n is
6208 the number of bits in the stencil buffer, specify a mask. Where
6209 a 1 appears in the mask, it's possible to write to the corre‐
6210 sponding bit in the stencil buffer. Where a 0 appears, the cor‐
6211 responding bit is write-protected. Initially, all bits are en‐
6212 abled for writing.
6213 External documentation.
6215 stencilMaskSeparate(Face :: enum(), Mask :: i()) -> ok
6217 gl:stencilMaskSeparate/2 controls the writing of individual bits
6219 in the stencil planes. The least significant n bits of Mask,
6220 where n is the number of bits in the stencil buffer, specify a
6221 mask. Where a 1 appears in the mask, it's possible to write to
6222 the corresponding bit in the stencil buffer. Where a 0 appears,
6223 the corresponding bit is write-protected. Initially, all bits
6224 are enabled for writing.
6225 External documentation.
6227 stencilOp(Fail :: enum(), Zfail :: enum(), Zpass :: enum()) -> ok
6229 Stenciling, like depth-buffering, enables and disables drawing
6231 on a per-pixel basis. You draw into the stencil planes using GL
6232 drawing primitives, then render geometry and images, using the
6233 stencil planes to mask out portions of the screen. Stenciling is
6234 typically used in multipass rendering algorithms to achieve spe‐
6235 cial effects, such as decals, outlining, and constructive solid
6236 geometry rendering.
6237 External documentation.
6239 stencilOpSeparate(Face :: enum(),
6241 Sfail :: enum(),
6242 Dpfail :: enum(),
6243 Dppass :: enum()) ->
6244 ok
6245 Stenciling, like depth-buffering, enables and disables drawing
6247 on a per-pixel basis. You draw into the stencil planes using GL
6248 drawing primitives, then render geometry and images, using the
6249 stencil planes to mask out portions of the screen. Stenciling is
6250 typically used in multipass rendering algorithms to achieve spe‐
6251 cial effects, such as decals, outlining, and constructive solid
6252 geometry rendering.
6253 External documentation.
6255 texBuffer(Target :: enum(),
6257 Internalformat :: enum(),
6258 Buffer :: i()) ->
6259 ok
6260 gl:texBuffer/3 and gl:textureBuffer/3 attaches the data store of
6262 a specified buffer object to a specified texture object, and
6263 specify the storage format for the texture image found in the
6264 buffer object. The texture object must be a buffer texture.
6265 External documentation.
6267 texBufferRange(Target :: enum(),
6269 Internalformat :: enum(),
6270 Buffer :: i(),
6271 Offset :: i(),
6272 Size :: i()) ->
6273 ok
6274 gl:texBufferRange/5 and gl:textureBufferRange/5 attach a range
6276 of the data store of a specified buffer object to a specified
6277 texture object, and specify the storage format for the texture
6278 image found in the buffer object. The texture object must be a
6279 buffer texture.
6280 External documentation.
6282 texCoord1d(S :: f()) -> ok
6284 texCoord1dv(X1 :: {S :: f()}) -> ok
6286 texCoord1f(S :: f()) -> ok
6288 texCoord1fv(X1 :: {S :: f()}) -> ok
6290 texCoord1i(S :: i()) -> ok
6292 texCoord1iv(X1 :: {S :: i()}) -> ok
6294 texCoord1s(S :: i()) -> ok
6296 texCoord1sv(X1 :: {S :: i()}) -> ok
6298 texCoord2d(S :: f(), T :: f()) -> ok
6300 texCoord2dv(X1 :: {S :: f(), T :: f()}) -> ok
6302 texCoord2f(S :: f(), T :: f()) -> ok
6304 texCoord2fv(X1 :: {S :: f(), T :: f()}) -> ok
6306 texCoord2i(S :: i(), T :: i()) -> ok
6308 texCoord2iv(X1 :: {S :: i(), T :: i()}) -> ok
6310 texCoord2s(S :: i(), T :: i()) -> ok
6312 texCoord2sv(X1 :: {S :: i(), T :: i()}) -> ok
6314 texCoord3d(S :: f(), T :: f(), R :: f()) -> ok
6316 texCoord3dv(X1 :: {S :: f(), T :: f(), R :: f()}) -> ok
6318 texCoord3f(S :: f(), T :: f(), R :: f()) -> ok
6320 texCoord3fv(X1 :: {S :: f(), T :: f(), R :: f()}) -> ok
6322 texCoord3i(S :: i(), T :: i(), R :: i()) -> ok
6324 texCoord3iv(X1 :: {S :: i(), T :: i(), R :: i()}) -> ok
6326 texCoord3s(S :: i(), T :: i(), R :: i()) -> ok
6328 texCoord3sv(X1 :: {S :: i(), T :: i(), R :: i()}) -> ok
6330 texCoord4d(S :: f(), T :: f(), R :: f(), Q :: f()) -> ok
6332 texCoord4dv(X1 :: {S :: f(), T :: f(), R :: f(), Q :: f()}) -> ok
6334 texCoord4f(S :: f(), T :: f(), R :: f(), Q :: f()) -> ok
6336 texCoord4fv(X1 :: {S :: f(), T :: f(), R :: f(), Q :: f()}) -> ok
6338 texCoord4i(S :: i(), T :: i(), R :: i(), Q :: i()) -> ok
6340 texCoord4iv(X1 :: {S :: i(), T :: i(), R :: i(), Q :: i()}) -> ok
6342 texCoord4s(S :: i(), T :: i(), R :: i(), Q :: i()) -> ok
6344 texCoord4sv(X1 :: {S :: i(), T :: i(), R :: i(), Q :: i()}) -> ok
6346 gl:texCoord() specifies texture coordinates in one, two, three,
6348 or four dimensions. gl:texCoord1() sets the current texture co‐
6349 ordinates to (s 0 0 1); a call to gl:texCoord2() sets them to (s
6350 t 0 1). Similarly, gl:texCoord3() specifies the texture coordi‐
6351 nates as (s t r 1), and gl:texCoord4() defines all four compo‐
6352 nents explicitly as (s t r q).
6353 External documentation.
6355 texCoordPointer(Size :: i(),
6357 Type :: enum(),
6358 Stride :: i(),
6359 Ptr :: offset() | mem()) ->
6360 ok
6361 gl:texCoordPointer/4 specifies the location and data format of
6363 an array of texture coordinates to use when rendering. Size
6364 specifies the number of coordinates per texture coordinate set,
6365 and must be 1, 2, 3, or 4. Type specifies the data type of each
6366 texture coordinate, and Stride specifies the byte stride from
6367 one texture coordinate set to the next, allowing vertices and
6368 attributes to be packed into a single array or stored in sepa‐
6369 rate arrays. (Single-array storage may be more efficient on some
6370 implementations; see gl:interleavedArrays/3.)
6371 External documentation.
6373 texEnvfv(Target :: enum(), Pname :: enum(), Params :: tuple()) ->
6375 ok
6376 texEnviv(Target :: enum(), Pname :: enum(), Params :: tuple()) ->
6378 ok
6379 A texture environment specifies how texture values are inter‐
6381 preted when a fragment is textured. When Target is ?GL_TEX‐
6382 TURE_FILTER_CONTROL, Pname must be ?GL_TEXTURE_LOD_BIAS. When
6383 Target is ?GL_TEXTURE_ENV, Pname can be ?GL_TEXTURE_ENV_MODE,
6384 ?GL_TEXTURE_ENV_COLOR, ?GL_COMBINE_RGB, ?GL_COMBINE_ALPHA,
6385 ?GL_RGB_SCALE, ?GL_ALPHA_SCALE, ?GL_SRC0_RGB, ?GL_SRC1_RGB,
6386 ?GL_SRC2_RGB, ?GL_SRC0_ALPHA, ?GL_SRC1_ALPHA, or ?GL_SRC2_ALPHA.
6387 External documentation.
6389 texEnvf(Target :: enum(), Pname :: enum(), Param :: f()) -> ok
6391 No documentation available.
6393 texEnvi(Target :: enum(), Pname :: enum(), Param :: i()) -> ok
6395 No documentation available.
6397 texGend(Coord :: enum(), Pname :: enum(), Param :: f()) -> ok
6399 texGendv(Coord :: enum(), Pname :: enum(), Params :: tuple()) ->
6401 ok
6402 texGenf(Coord :: enum(), Pname :: enum(), Param :: f()) -> ok
6404 texGenfv(Coord :: enum(), Pname :: enum(), Params :: tuple()) ->
6406 ok
6407 texGeni(Coord :: enum(), Pname :: enum(), Param :: i()) -> ok
6409 texGeniv(Coord :: enum(), Pname :: enum(), Params :: tuple()) ->
6411 ok
6412 gl:texGen() selects a texture-coordinate generation function or
6414 supplies coefficients for one of the functions. Coord names one
6415 of the (s, t, r, q) texture coordinates; it must be one of the
6416 symbols ?GL_S, ?GL_T, ?GL_R, or ?GL_Q. Pname must be one of
6417 three symbolic constants: ?GL_TEXTURE_GEN_MODE, ?GL_OB‐
6418 JECT_PLANE, or ?GL_EYE_PLANE. If Pname is ?GL_TEXTURE_GEN_MODE,
6419 then Params chooses a mode, one of ?GL_OBJECT_LINEAR,
6420 ?GL_EYE_LINEAR, ?GL_SPHERE_MAP, ?GL_NORMAL_MAP, or ?GL_REFLEC‐
6421 TION_MAP. If Pname is either ?GL_OBJECT_PLANE or ?GL_EYE_PLANE,
6422 Params contains coefficients for the corresponding texture gen‐
6423 eration function.
6424 External documentation.
6426 texImage1D(Target, Level, InternalFormat, Width, Border, Format,
6428 Type, Pixels) ->
6429 ok
6430 Types:
6432 Target = enum()
6434 Level = InternalFormat = Width = Border = i()
6435 Format = Type = enum()
6436 Pixels = offset() | mem()
6437 Texturing maps a portion of a specified texture image onto each
6439 graphical primitive for which texturing is enabled. To enable
6440 and disable one-dimensional texturing, call gl:enable/1 and
6441 gl:disable/1 with argument ?GL_TEXTURE_1D.
6442 External documentation.
6444 texImage2D(Target, Level, InternalFormat, Width, Height, Border,
6446 Format, Type, Pixels) ->
6447 ok
6448 Types:
6450 Target = enum()
6452 Level = InternalFormat = Width = Height = Border = i()
6453 Format = Type = enum()
6454 Pixels = offset() | mem()
6455 Texturing allows elements of an image array to be read by
6457 shaders.
6458 External documentation.
6460 texImage2DMultisample(Target, Samples, Internalformat, Width,
6462 Height, Fixedsamplelocations) ->
6463 ok
6464 Types:
6466 Target = enum()
6468 Samples = i()
6469 Internalformat = enum()
6470 Width = Height = i()
6471 Fixedsamplelocations = 0 | 1
6472 gl:texImage2DMultisample/6 establishes the data storage, format,
6474 dimensions and number of samples of a multisample texture's im‐
6475 age.
6476 External documentation.
6478 texImage3D(Target, Level, InternalFormat, Width, Height, Depth,
6480 Border, Format, Type, Pixels) ->
6481 ok
6482 Types:
6484 Target = enum()
6486 Level = InternalFormat = Width = Height = Depth = Border =
6487 i()
6488 Format = Type = enum()
6489 Pixels = offset() | mem()
6490 Texturing maps a portion of a specified texture image onto each
6492 graphical primitive for which texturing is enabled. To enable
6493 and disable three-dimensional texturing, call gl:enable/1 and
6494 gl:disable/1 with argument ?GL_TEXTURE_3D.
6495 External documentation.
6497 texImage3DMultisample(Target, Samples, Internalformat, Width,
6499 Height, Depth, Fixedsamplelocations) ->
6500 ok
6501 Types:
6503 Target = enum()
6505 Samples = i()
6506 Internalformat = enum()
6507 Width = Height = Depth = i()
6508 Fixedsamplelocations = 0 | 1
6509 gl:texImage3DMultisample/7 establishes the data storage, format,
6511 dimensions and number of samples of a multisample texture's im‐
6512 age.
6513 External documentation.
6515 texPageCommitmentARB(Target, Level, Xoffset, Yoffset, Zoffset,
6517 Width, Height, Depth, Commit) ->
6518 ok
6519 Types:
6521 Target = enum()
6523 Level = Xoffset = Yoffset = Zoffset = Width = Height = Depth
6524 = i()
6525 Commit = 0 | 1
6526 No documentation available.
6528 texParameterIiv(Target :: enum(),
6530 Pname :: enum(),
6531 Params :: tuple()) ->
6532 ok
6533 texParameterf(Target :: enum(), Pname :: enum(), Param :: f()) ->
6535 ok
6536 texParameterfv(Target :: enum(),
6538 Pname :: enum(),
6539 Params :: tuple()) ->
6540 ok
6541 texParameteri(Target :: enum(), Pname :: enum(), Param :: i()) ->
6543 ok
6544 texParameteriv(Target :: enum(),
6546 Pname :: enum(),
6547 Params :: tuple()) ->
6548 ok
6549 gl:texParameter() and glTextureParameter assign the value or
6551 values in Params to the texture parameter specified as Pname.
6552 For gl:texParameter(), Target defines the target texture, either
6553 ?GL_TEXTURE_1D, ?GL_TEXTURE_1D_ARRAY, ?GL_TEXTURE_2D, ?GL_TEX‐
6554 TURE_2D_ARRAY, ?GL_TEXTURE_2D_MULTISAMPLE, ?GL_TEXTURE_2D_MULTI‐
6555 SAMPLE_ARRAY, ?GL_TEXTURE_3D, ?GL_TEXTURE_CUBE_MAP, ?GL_TEX‐
6556 TURE_CUBE_MAP_ARRAY, or ?GL_TEXTURE_RECTANGLE. The following
6557 symbols are accepted in Pname:
6558 External documentation.
6560 texParameterIuiv(Target :: enum(),
6562 Pname :: enum(),
6563 Params :: tuple()) ->
6564 ok
6565 No documentation available.
6567 texStorage1D(Target :: enum(),
6569 Levels :: i(),
6570 Internalformat :: enum(),
6571 Width :: i()) ->
6572 ok
6573 gl:texStorage1D/4 and glTextureStorage1D specify the storage re‐
6575 quirements for all levels of a one-dimensional texture simulta‐
6576 neously. Once a texture is specified with this command, the for‐
6577 mat and dimensions of all levels become immutable unless it is a
6578 proxy texture. The contents of the image may still be modified,
6579 however, its storage requirements may not change. Such a texture
6580 is referred to as an immutable-format texture.
6581 External documentation.
6583 texStorage2D(Target :: enum(),
6585 Levels :: i(),
6586 Internalformat :: enum(),
6587 Width :: i(),
6588 Height :: i()) ->
6589 ok
6590 gl:texStorage2D/5 and glTextureStorage2D specify the storage re‐
6592 quirements for all levels of a two-dimensional texture or one-
6593 dimensional texture array simultaneously. Once a texture is
6594 specified with this command, the format and dimensions of all
6595 levels become immutable unless it is a proxy texture. The con‐
6596 tents of the image may still be modified, however, its storage
6597 requirements may not change. Such a texture is referred to as an
6598 immutable-format texture.
6599 External documentation.
6601 texStorage2DMultisample(Target, Samples, Internalformat, Width,
6603 Height, Fixedsamplelocations) ->
6604 ok
6605 Types:
6607 Target = enum()
6609 Samples = i()
6610 Internalformat = enum()
6611 Width = Height = i()
6612 Fixedsamplelocations = 0 | 1
6613 gl:texStorage2DMultisample/6 and glTextureStorage2DMultisample
6615 specify the storage requirements for a two-dimensional multisam‐
6616 ple texture. Once a texture is specified with this command, its
6617 format and dimensions become immutable unless it is a proxy tex‐
6618 ture. The contents of the image may still be modified, however,
6619 its storage requirements may not change. Such a texture is re‐
6620 ferred to as an immutable-format texture.
6621 External documentation.
6623 texStorage3D(Target, Levels, Internalformat, Width, Height, Depth) ->
6625 ok
6626 Types:
6628 Target = enum()
6630 Levels = i()
6631 Internalformat = enum()
6632 Width = Height = Depth = i()
6633 gl:texStorage3D/6 and glTextureStorage3D specify the storage re‐
6635 quirements for all levels of a three-dimensional, two-dimen‐
6636 sional array or cube-map array texture simultaneously. Once a
6637 texture is specified with this command, the format and dimen‐
6638 sions of all levels become immutable unless it is a proxy tex‐
6639 ture. The contents of the image may still be modified, however,
6640 its storage requirements may not change. Such a texture is re‐
6641 ferred to as an immutable-format texture.
6642 External documentation.
6644 texStorage3DMultisample(Target, Samples, Internalformat, Width,
6646 Height, Depth, Fixedsamplelocations) ->
6647 ok
6648 Types:
6650 Target = enum()
6652 Samples = i()
6653 Internalformat = enum()
6654 Width = Height = Depth = i()
6655 Fixedsamplelocations = 0 | 1
6656 gl:texStorage3DMultisample/7 and glTextureStorage3DMultisample
6658 specify the storage requirements for a two-dimensional multisam‐
6659 ple array texture. Once a texture is specified with this com‐
6660 mand, its format and dimensions become immutable unless it is a
6661 proxy texture. The contents of the image may still be modified,
6662 however, its storage requirements may not change. Such a texture
6663 is referred to as an immutable-format texture.
6664 External documentation.
6666 texSubImage1D(Target, Level, Xoffset, Width, Format, Type, Pixels) ->
6668 ok
6669 texSubImage2D(Target, Level, Xoffset, Yoffset, Width, Height,
6671 Format, Type, Pixels) ->
6672 ok
6673 texSubImage3D(Target, Level, Xoffset, Yoffset, Zoffset, Width,
6675 Height, Depth, Format, Type, Pixels) ->
6676 ok
6677 Types:
6679 Target = enum()
6681 Level = Xoffset = Yoffset = Zoffset = Width = Height = Depth
6682 = i()
6683 Format = Type = enum()
6684 Pixels = offset() | mem()
6685 No documentation available.
6687 textureBarrier() -> ok
6689 The values of rendered fragments are undefined when a shader
6691 stage fetches texels and the same texels are written via frag‐
6692 ment shader outputs, even if the reads and writes are not in the
6693 same drawing command. To safely read the result of a written
6694 texel via a texel fetch in a subsequent drawing command, call
6695 gl:textureBarrier/0 between the two drawing commands to guaran‐
6696 tee that writes have completed and caches have been invalidated
6697 before subsequent drawing commands are executed.
6698 External documentation.
6700 textureBuffer(Texture :: i(),
6702 Internalformat :: enum(),
6703 Buffer :: i()) ->
6704 ok
6705 No documentation available.
6707 textureBufferRange(Texture :: i(),
6709 Internalformat :: enum(),
6710 Buffer :: i(),
6711 Offset :: i(),
6712 Size :: i()) ->
6713 ok
6714 No documentation available.
6716 textureView(Texture, Target, Origtexture, Internalformat,
6718 Minlevel, Numlevels, Minlayer, Numlayers) ->
6719 ok
6720 Types:
6722 Texture = i()
6724 Target = enum()
6725 Origtexture = i()
6726 Internalformat = enum()
6727 Minlevel = Numlevels = Minlayer = Numlayers = i()
6728 gl:textureView/8 initializes a texture object as an alias, or
6730 view of another texture object, sharing some or all of the par‐
6731 ent texture's data store with the initialized texture. Texture
6732 specifies a name previously reserved by a successful call to
6733 gl:genTextures/1 but that has not yet been bound or given a tar‐
6734 get. Target specifies the target for the newly initialized tex‐
6735 ture and must be compatible with the target of the parent tex‐
6736 ture, given in Origtexture as specified in the following table:
6737 External documentation.
6739 transformFeedbackBufferBase(Xfb :: i(),
6741 Index :: i(),
6742 Buffer :: i()) ->
6743 ok
6744 gl:transformFeedbackBufferBase/3 binds the buffer object Buffer
6746 to the binding point at index Index of the transform feedback
6747 object Xfb.
6748 External documentation.
6750 transformFeedbackBufferRange(Xfb :: i(),
6752 Index :: i(),
6753 Buffer :: i(),
6754 Offset :: i(),
6755 Size :: i()) ->
6756 ok
6757 gl:transformFeedbackBufferRange/5 binds a range of the buffer
6759 object Buffer represented by Offset and Size to the binding
6760 point at index Index of the transform feedback object Xfb.
6761 External documentation.
6763 transformFeedbackVaryings(Program :: i(),
6765 Varyings :: [unicode:chardata()],
6766 BufferMode :: enum()) ->
6767 ok
6768 The names of the vertex or geometry shader outputs to be
6770 recorded in transform feedback mode are specified using
6771 gl:transformFeedbackVaryings/3. When a geometry shader is ac‐
6772 tive, transform feedback records the values of selected geometry
6773 shader output variables from the emitted vertices. Otherwise,
6774 the values of the selected vertex shader outputs are recorded.
6775 External documentation.
6777 translated(X :: f(), Y :: f(), Z :: f()) -> ok
6779 translatef(X :: f(), Y :: f(), Z :: f()) -> ok
6781 gl:translate() produces a translation by (x y z). The current
6783 matrix (see gl:matrixMode/1) is multiplied by this translation
6784 matrix, with the product replacing the current matrix, as if
6785 gl:multMatrix() were called with the following matrix for its
6786 argument:
6787 External documentation.
6789 uniform1d(Location :: i(), X :: f()) -> ok
6791 uniform1dv(Location :: i(), Value :: [f()]) -> ok
6793 uniform1f(Location :: i(), V0 :: f()) -> ok
6795 uniform1fv(Location :: i(), Value :: [f()]) -> ok
6797 uniform1i(Location :: i(), V0 :: i()) -> ok
6799 uniform1iv(Location :: i(), Value :: [i()]) -> ok
6801 uniform1ui(Location :: i(), V0 :: i()) -> ok
6803 uniform1uiv(Location :: i(), Value :: [i()]) -> ok
6805 uniform2d(Location :: i(), X :: f(), Y :: f()) -> ok
6807 uniform2dv(Location :: i(), Value :: [{f(), f()}]) -> ok
6809 uniform2f(Location :: i(), V0 :: f(), V1 :: f()) -> ok
6811 uniform2fv(Location :: i(), Value :: [{f(), f()}]) -> ok
6813 uniform2i(Location :: i(), V0 :: i(), V1 :: i()) -> ok
6815 uniform2iv(Location :: i(), Value :: [{i(), i()}]) -> ok
6817 uniform2ui(Location :: i(), V0 :: i(), V1 :: i()) -> ok
6819 uniform2uiv(Location :: i(), Value :: [{i(), i()}]) -> ok
6821 uniform3d(Location :: i(), X :: f(), Y :: f(), Z :: f()) -> ok
6823 uniform3dv(Location :: i(), Value :: [{f(), f(), f()}]) -> ok
6825 uniform3f(Location :: i(), V0 :: f(), V1 :: f(), V2 :: f()) -> ok
6827 uniform3fv(Location :: i(), Value :: [{f(), f(), f()}]) -> ok
6829 uniform3i(Location :: i(), V0 :: i(), V1 :: i(), V2 :: i()) -> ok
6831 uniform3iv(Location :: i(), Value :: [{i(), i(), i()}]) -> ok
6833 uniform3ui(Location :: i(), V0 :: i(), V1 :: i(), V2 :: i()) -> ok
6835 uniform3uiv(Location :: i(), Value :: [{i(), i(), i()}]) -> ok
6837 uniform4d(Location :: i(), X :: f(), Y :: f(), Z :: f(), W :: f()) ->
6839 ok
6840 uniform4dv(Location :: i(), Value :: [{f(), f(), f(), f()}]) -> ok
6842 uniform4f(Location :: i(),
6844 V0 :: f(),
6845 V1 :: f(),
6846 V2 :: f(),
6847 V3 :: f()) ->
6848 ok
6849 uniform4fv(Location :: i(), Value :: [{f(), f(), f(), f()}]) -> ok
6851 uniform4i(Location :: i(),
6853 V0 :: i(),
6854 V1 :: i(),
6855 V2 :: i(),
6856 V3 :: i()) ->
6857 ok
6858 uniform4iv(Location :: i(), Value :: [{i(), i(), i(), i()}]) -> ok
6860 uniform4ui(Location :: i(),
6862 V0 :: i(),
6863 V1 :: i(),
6864 V2 :: i(),
6865 V3 :: i()) ->
6866 ok
6867 uniform4uiv(Location :: i(), Value :: [{i(), i(), i(), i()}]) ->
6869 ok
6870 uniformMatrix2dv(Location :: i(),
6872 Transpose :: 0 | 1,
6873 Value :: [{f(), f(), f(), f()}]) ->
6874 ok
6875 uniformMatrix2fv(Location :: i(),
6877 Transpose :: 0 | 1,
6878 Value :: [{f(), f(), f(), f()}]) ->
6879 ok
6880 uniformMatrix2x3dv(Location :: i(),
6882 Transpose :: 0 | 1,
6883 Value :: [{f(), f(), f(), f(), f(), f()}]) ->
6884 ok
6885 uniformMatrix2x3fv(Location :: i(),
6887 Transpose :: 0 | 1,
6888 Value :: [{f(), f(), f(), f(), f(), f()}]) ->
6889 ok
6890 uniformMatrix2x4dv(Location :: i(),
6892 Transpose :: 0 | 1,
6893 Value ::
6894 [{f(), f(), f(), f(), f(), f(), f(), f()}]) ->
6895 ok
6896 uniformMatrix2x4fv(Location :: i(),
6898 Transpose :: 0 | 1,
6899 Value ::
6900 [{f(), f(), f(), f(), f(), f(), f(), f()}]) ->
6901 ok
6902 uniformMatrix3dv(Location :: i(),
6904 Transpose :: 0 | 1,
6905 Value ::
6906 [{f(),
6907 f(),
6908 f(),
6909 f(),
6910 f(),
6911 f(),
6912 f(),
6913 f(),
6914 f()}]) ->
6915 ok
6916 uniformMatrix3fv(Location :: i(),
6918 Transpose :: 0 | 1,
6919 Value ::
6920 [{f(),
6921 f(),
6922 f(),
6923 f(),
6924 f(),
6925 f(),
6926 f(),
6927 f(),
6928 f()}]) ->
6929 ok
6930 uniformMatrix3x2dv(Location :: i(),
6932 Transpose :: 0 | 1,
6933 Value :: [{f(), f(), f(), f(), f(), f()}]) ->
6934 ok
6935 uniformMatrix3x2fv(Location :: i(),
6937 Transpose :: 0 | 1,
6938 Value :: [{f(), f(), f(), f(), f(), f()}]) ->
6939 ok
6940 uniformMatrix3x4dv(Location, Transpose, Value) -> ok
6942 uniformMatrix3x4fv(Location, Transpose, Value) -> ok
6944 uniformMatrix4dv(Location, Transpose, Value) -> ok
6946 uniformMatrix4fv(Location, Transpose, Value) -> ok
6948 uniformMatrix4x2dv(Location :: i(),
6950 Transpose :: 0 | 1,
6951 Value ::
6952 [{f(), f(), f(), f(), f(), f(), f(), f()}]) ->
6953 ok
6954 uniformMatrix4x2fv(Location :: i(),
6956 Transpose :: 0 | 1,
6957 Value ::
6958 [{f(), f(), f(), f(), f(), f(), f(), f()}]) ->
6959 ok
6960 uniformMatrix4x3dv(Location, Transpose, Value) -> ok
6962 uniformMatrix4x3fv(Location, Transpose, Value) -> ok
6964 Types:
6966 Location = i()
6968 Transpose = 0 | 1
6969 Value =
6970 [{f(), f(), f(), f(), f(), f(), f(), f(), f(), f(), f(),
6971 f()}]
6972 gl:uniform() modifies the value of a uniform variable or a uni‐
6974 form variable array. The location of the uniform variable to be
6975 modified is specified by Location, which should be a value re‐
6976 turned by gl:getUniformLocation/2. gl:uniform() operates on the
6977 program object that was made part of current state by calling
6978 gl:useProgram/1.
6979 External documentation.
6981 uniform1i64vARB(Location :: i(), Value :: [i()]) -> ok
6983 No documentation available.
6985 uniform1i64ARB(Location :: i(), X :: i()) -> ok
6987 No documentation available.
6989 uniform1ui64vARB(Location :: i(), Value :: [i()]) -> ok
6991 No documentation available.
6993 uniform1ui64ARB(Location :: i(), X :: i()) -> ok
6995 No documentation available.
6997 uniform2i64vARB(Location :: i(), Value :: [{i(), i()}]) -> ok
6999 No documentation available.
7001 uniform2i64ARB(Location :: i(), X :: i(), Y :: i()) -> ok
7003 No documentation available.
7005 uniform2ui64vARB(Location :: i(), Value :: [{i(), i()}]) -> ok
7007 No documentation available.
7009 uniform2ui64ARB(Location :: i(), X :: i(), Y :: i()) -> ok
7011 No documentation available.
7013 uniform3i64vARB(Location :: i(), Value :: [{i(), i(), i()}]) -> ok
7015 No documentation available.
7017 uniform3i64ARB(Location :: i(), X :: i(), Y :: i(), Z :: i()) ->
7019 ok
7020 No documentation available.
7022 uniform3ui64vARB(Location :: i(), Value :: [{i(), i(), i()}]) ->
7024 ok
7025 No documentation available.
7027 uniform3ui64ARB(Location :: i(), X :: i(), Y :: i(), Z :: i()) ->
7029 ok
7030 No documentation available.
7032 uniform4i64vARB(Location :: i(), Value :: [{i(), i(), i(), i()}]) ->
7034 ok
7035 No documentation available.
7037 uniform4i64ARB(Location :: i(),
7039 X :: i(),
7040 Y :: i(),
7041 Z :: i(),
7042 W :: i()) ->
7043 ok
7044 No documentation available.
7046 uniform4ui64vARB(Location :: i(), Value :: [{i(), i(), i(), i()}]) ->
7048 ok
7049 No documentation available.
7051 uniform4ui64ARB(Location :: i(),
7053 X :: i(),
7054 Y :: i(),
7055 Z :: i(),
7056 W :: i()) ->
7057 ok
7058 No documentation available.
7060 uniformBlockBinding(Program :: i(),
7062 UniformBlockIndex :: i(),
7063 UniformBlockBinding :: i()) ->
7064 ok
7065 Binding points for active uniform blocks are assigned using
7067 gl:uniformBlockBinding/3. Each of a program's active uniform
7068 blocks has a corresponding uniform buffer binding point. Program
7069 is the name of a program object for which the command
7070 gl:linkProgram/1 has been issued in the past.
7071 External documentation.
7073 uniformHandleui64ARB(Location :: i(), Value :: i()) -> ok
7075 No documentation available.
7077 uniformSubroutinesuiv(Shadertype :: enum(), Indices :: [i()]) ->
7079 ok
7080 gl:uniformSubroutines() loads all active subroutine uniforms for
7082 shader stage Shadertype of the current program with subroutine
7083 indices from Indices, storing Indices[i] into the uniform at lo‐
7084 cation I. Count must be equal to the value of ?GL_ACTIVE_SUBROU‐
7085 TINE_UNIFORM_LOCATIONS for the program currently in use at
7086 shader stage Shadertype. Furthermore, all values in Indices must
7087 be less than the value of ?GL_ACTIVE_SUBROUTINES for the shader
7088 stage.
7089 External documentation.
7091 useProgram(Program :: i()) -> ok
7093 gl:useProgram/1 installs the program object specified by Program
7095 as part of current rendering state. One or more executables are
7096 created in a program object by successfully attaching shader ob‐
7097 jects to it with gl:attachShader/2, successfully compiling the
7098 shader objects with gl:compileShader/1, and successfully linking
7099 the program object with gl:linkProgram/1.
7100 External documentation.
7102 useProgramObjectARB(ProgramObj :: i()) -> ok
7104 No documentation available.
7106 useProgramStages(Pipeline :: i(), Stages :: i(), Program :: i()) ->
7108 ok
7109 gl:useProgramStages/3 binds executables from a program object
7111 associated with a specified set of shader stages to the program
7112 pipeline object given by Pipeline. Pipeline specifies the pro‐
7113 gram pipeline object to which to bind the executables. Stages
7114 contains a logical combination of bits indicating the shader
7115 stages to use within Program with the program pipeline object
7116 Pipeline. Stages must be a logical combination of ?GL_VER‐
7117 TEX_SHADER_BIT, ?GL_TESS_CONTROL_SHADER_BIT, ?GL_TESS_EVALUA‐
7118 TION_SHADER_BIT, ?GL_GEOMETRY_SHADER_BIT, ?GL_FRAG‐
7119 MENT_SHADER_BIT and ?GL_COMPUTE_SHADER_BIT. Additionally, the
7120 special value ?GL_ALL_SHADER_BITS may be specified to indicate
7121 that all executables contained in Program should be installed in
7122 Pipeline.
7123 External documentation.
7125 validateProgram(Program :: i()) -> ok
7127 gl:validateProgram/1 checks to see whether the executables con‐
7129 tained in Program can execute given the current OpenGL state.
7130 The information generated by the validation process will be
7131 stored in Program's information log. The validation information
7132 may consist of an empty string, or it may be a string containing
7133 information about how the current program object interacts with
7134 the rest of current OpenGL state. This provides a way for OpenGL
7135 implementers to convey more information about why the current
7136 program is inefficient, suboptimal, failing to execute, and so
7137 on.
7138 External documentation.
7140 validateProgramARB(ProgramObj :: i()) -> ok
7142 No documentation available.
7144 validateProgramPipeline(Pipeline :: i()) -> ok
7146 gl:validateProgramPipeline/1 instructs the implementation to
7148 validate the shader executables contained in Pipeline against
7149 the current GL state. The implementation may use this as an op‐
7150 portunity to perform any internal shader modifications that may
7151 be required to ensure correct operation of the installed shaders
7152 given the current GL state.
7153 External documentation.
7155 vertex2d(X :: f(), Y :: f()) -> ok
7157 vertex2dv(X1 :: {X :: f(), Y :: f()}) -> ok
7159 vertex2f(X :: f(), Y :: f()) -> ok
7161 vertex2fv(X1 :: {X :: f(), Y :: f()}) -> ok
7163 vertex2i(X :: i(), Y :: i()) -> ok
7165 vertex2iv(X1 :: {X :: i(), Y :: i()}) -> ok
7167 vertex2s(X :: i(), Y :: i()) -> ok
7169 vertex2sv(X1 :: {X :: i(), Y :: i()}) -> ok
7171 vertex3d(X :: f(), Y :: f(), Z :: f()) -> ok
7173 vertex3dv(X1 :: {X :: f(), Y :: f(), Z :: f()}) -> ok
7175 vertex3f(X :: f(), Y :: f(), Z :: f()) -> ok
7177 vertex3fv(X1 :: {X :: f(), Y :: f(), Z :: f()}) -> ok
7179 vertex3i(X :: i(), Y :: i(), Z :: i()) -> ok
7181 vertex3iv(X1 :: {X :: i(), Y :: i(), Z :: i()}) -> ok
7183 vertex3s(X :: i(), Y :: i(), Z :: i()) -> ok
7185 vertex3sv(X1 :: {X :: i(), Y :: i(), Z :: i()}) -> ok
7187 vertex4d(X :: f(), Y :: f(), Z :: f(), W :: f()) -> ok
7189 vertex4dv(X1 :: {X :: f(), Y :: f(), Z :: f(), W :: f()}) -> ok
7191 vertex4f(X :: f(), Y :: f(), Z :: f(), W :: f()) -> ok
7193 vertex4fv(X1 :: {X :: f(), Y :: f(), Z :: f(), W :: f()}) -> ok
7195 vertex4i(X :: i(), Y :: i(), Z :: i(), W :: i()) -> ok
7197 vertex4iv(X1 :: {X :: i(), Y :: i(), Z :: i(), W :: i()}) -> ok
7199 vertex4s(X :: i(), Y :: i(), Z :: i(), W :: i()) -> ok
7201 vertex4sv(X1 :: {X :: i(), Y :: i(), Z :: i(), W :: i()}) -> ok
7203 gl:vertex() commands are used within gl:'begin'/1/gl:'end'/0
7205 pairs to specify point, line, and polygon vertices. The current
7206 color, normal, texture coordinates, and fog coordinate are asso‐
7207 ciated with the vertex when gl:vertex() is called.
7208 External documentation.
7210 vertexArrayAttribBinding(Vaobj :: i(),
7212 Attribindex :: i(),
7213 Bindingindex :: i()) ->
7214 ok
7215 No documentation available.
7217 vertexArrayAttribFormat(Vaobj, Attribindex, Size, Type,
7219 Normalized, Relativeoffset) ->
7220 ok
7221 Types:
7223 Vaobj = Attribindex = Size = i()
7225 Type = enum()
7226 Normalized = 0 | 1
7227 Relativeoffset = i()
7228 No documentation available.
7230 vertexArrayAttribIFormat(Vaobj :: i(),
7232 Attribindex :: i(),
7233 Size :: i(),
7234 Type :: enum(),
7235 Relativeoffset :: i()) ->
7236 ok
7237 No documentation available.
7239 vertexArrayAttribLFormat(Vaobj :: i(),
7241 Attribindex :: i(),
7242 Size :: i(),
7243 Type :: enum(),
7244 Relativeoffset :: i()) ->
7245 ok
7246 No documentation available.
7248 vertexArrayBindingDivisor(Vaobj :: i(),
7250 Bindingindex :: i(),
7251 Divisor :: i()) ->
7252 ok
7253 No documentation available.
7255 vertexArrayElementBuffer(Vaobj :: i(), Buffer :: i()) -> ok
7257 gl:vertexArrayElementBuffer/2 binds a buffer object with id Buf‐
7259 fer to the element array buffer bind point of a vertex array ob‐
7260 ject with id Vaobj. If Buffer is zero, any existing element ar‐
7261 ray buffer binding to Vaobj is removed.
7262 External documentation.
7264 vertexArrayVertexBuffer(Vaobj :: i(),
7266 Bindingindex :: i(),
7267 Buffer :: i(),
7268 Offset :: i(),
7269 Stride :: i()) ->
7270 ok
7271 No documentation available.
7273 vertexArrayVertexBuffers(Vaobj :: i(),
7275 First :: i(),
7276 Buffers :: [i()],
7277 Offsets :: [i()],
7278 Strides :: [i()]) ->
7279 ok
7280 No documentation available.
7282 vertexAttrib1d(Index :: i(), X :: f()) -> ok
7284 vertexAttrib1dv(Index :: i(), X2 :: {X :: f()}) -> ok
7286 vertexAttrib1f(Index :: i(), X :: f()) -> ok
7288 vertexAttrib1fv(Index :: i(), X2 :: {X :: f()}) -> ok
7290 vertexAttrib1s(Index :: i(), X :: i()) -> ok
7292 vertexAttrib1sv(Index :: i(), X2 :: {X :: i()}) -> ok
7294 vertexAttrib2d(Index :: i(), X :: f(), Y :: f()) -> ok
7296 vertexAttrib2dv(Index :: i(), X2 :: {X :: f(), Y :: f()}) -> ok
7298 vertexAttrib2f(Index :: i(), X :: f(), Y :: f()) -> ok
7300 vertexAttrib2fv(Index :: i(), X2 :: {X :: f(), Y :: f()}) -> ok
7302 vertexAttrib2s(Index :: i(), X :: i(), Y :: i()) -> ok
7304 vertexAttrib2sv(Index :: i(), X2 :: {X :: i(), Y :: i()}) -> ok
7306 vertexAttrib3d(Index :: i(), X :: f(), Y :: f(), Z :: f()) -> ok
7308 vertexAttrib3dv(Index :: i(),
7310 X2 :: {X :: f(), Y :: f(), Z :: f()}) ->
7311 ok
7312 vertexAttrib3f(Index :: i(), X :: f(), Y :: f(), Z :: f()) -> ok
7314 vertexAttrib3fv(Index :: i(),
7316 X2 :: {X :: f(), Y :: f(), Z :: f()}) ->
7317 ok
7318 vertexAttrib3s(Index :: i(), X :: i(), Y :: i(), Z :: i()) -> ok
7320 vertexAttrib3sv(Index :: i(),
7322 X2 :: {X :: i(), Y :: i(), Z :: i()}) ->
7323 ok
7324 vertexAttrib4Nbv(Index :: i(), V :: {i(), i(), i(), i()}) -> ok
7326 vertexAttrib4Niv(Index :: i(), V :: {i(), i(), i(), i()}) -> ok
7328 vertexAttrib4Nsv(Index :: i(), V :: {i(), i(), i(), i()}) -> ok
7330 vertexAttrib4Nub(Index :: i(),
7332 X :: i(),
7333 Y :: i(),
7334 Z :: i(),
7335 W :: i()) ->
7336 ok
7337 vertexAttrib4Nubv(Index :: i(),
7339 X2 :: {X :: i(), Y :: i(), Z :: i(), W :: i()}) ->
7340 ok
7341 vertexAttrib4Nuiv(Index :: i(), V :: {i(), i(), i(), i()}) -> ok
7343 vertexAttrib4Nusv(Index :: i(), V :: {i(), i(), i(), i()}) -> ok
7345 vertexAttrib4bv(Index :: i(), V :: {i(), i(), i(), i()}) -> ok
7347 vertexAttrib4d(Index :: i(),
7349 X :: f(),
7350 Y :: f(),
7351 Z :: f(),
7352 W :: f()) ->
7353 ok
7354 vertexAttrib4dv(Index :: i(),
7356 X2 :: {X :: f(), Y :: f(), Z :: f(), W :: f()}) ->
7357 ok
7358 vertexAttrib4f(Index :: i(),
7360 X :: f(),
7361 Y :: f(),
7362 Z :: f(),
7363 W :: f()) ->
7364 ok
7365 vertexAttrib4fv(Index :: i(),
7367 X2 :: {X :: f(), Y :: f(), Z :: f(), W :: f()}) ->
7368 ok
7369 vertexAttrib4iv(Index :: i(), V :: {i(), i(), i(), i()}) -> ok
7371 vertexAttrib4s(Index :: i(),
7373 X :: i(),
7374 Y :: i(),
7375 Z :: i(),
7376 W :: i()) ->
7377 ok
7378 vertexAttrib4sv(Index :: i(),
7380 X2 :: {X :: i(), Y :: i(), Z :: i(), W :: i()}) ->
7381 ok
7382 vertexAttrib4ubv(Index :: i(), V :: {i(), i(), i(), i()}) -> ok
7384 vertexAttrib4uiv(Index :: i(), V :: {i(), i(), i(), i()}) -> ok
7386 vertexAttrib4usv(Index :: i(), V :: {i(), i(), i(), i()}) -> ok
7388 vertexAttribI1i(Index :: i(), X :: i()) -> ok
7390 vertexAttribI1iv(Index :: i(), X2 :: {X :: i()}) -> ok
7392 vertexAttribI1ui(Index :: i(), X :: i()) -> ok
7394 vertexAttribI1uiv(Index :: i(), X2 :: {X :: i()}) -> ok
7396 vertexAttribI2i(Index :: i(), X :: i(), Y :: i()) -> ok
7398 vertexAttribI2iv(Index :: i(), X2 :: {X :: i(), Y :: i()}) -> ok
7400 vertexAttribI2ui(Index :: i(), X :: i(), Y :: i()) -> ok
7402 vertexAttribI2uiv(Index :: i(), X2 :: {X :: i(), Y :: i()}) -> ok
7404 vertexAttribI3i(Index :: i(), X :: i(), Y :: i(), Z :: i()) -> ok
7406 vertexAttribI3iv(Index :: i(),
7408 X2 :: {X :: i(), Y :: i(), Z :: i()}) ->
7409 ok
7410 vertexAttribI3ui(Index :: i(), X :: i(), Y :: i(), Z :: i()) -> ok
7412 vertexAttribI3uiv(Index :: i(),
7414 X2 :: {X :: i(), Y :: i(), Z :: i()}) ->
7415 ok
7416 vertexAttribI4bv(Index :: i(), V :: {i(), i(), i(), i()}) -> ok
7418 vertexAttribI4i(Index :: i(),
7420 X :: i(),
7421 Y :: i(),
7422 Z :: i(),
7423 W :: i()) ->
7424 ok
7425 vertexAttribI4iv(Index :: i(),
7427 X2 :: {X :: i(), Y :: i(), Z :: i(), W :: i()}) ->
7428 ok
7429 vertexAttribI4sv(Index :: i(), V :: {i(), i(), i(), i()}) -> ok
7431 vertexAttribI4ubv(Index :: i(), V :: {i(), i(), i(), i()}) -> ok
7433 vertexAttribI4ui(Index :: i(),
7435 X :: i(),
7436 Y :: i(),
7437 Z :: i(),
7438 W :: i()) ->
7439 ok
7440 vertexAttribI4uiv(Index :: i(),
7442 X2 :: {X :: i(), Y :: i(), Z :: i(), W :: i()}) ->
7443 ok
7444 vertexAttribI4usv(Index :: i(), V :: {i(), i(), i(), i()}) -> ok
7446 The gl:vertexAttrib() family of entry points allows an applica‐
7448 tion to pass generic vertex attributes in numbered locations.
7449 External documentation.
7451 vertexAttribBinding(Attribindex :: i(), Bindingindex :: i()) -> ok
7453 gl:vertexAttribBinding/2 and gl:vertexArrayAttribBinding/3 es‐
7455 tablishes an association between the generic vertex attribute of
7456 a vertex array object whose index is given by Attribindex, and a
7457 vertex buffer binding whose index is given by Bindingindex. For
7458 gl:vertexAttribBinding/2, the vertex array object affected is
7459 that currently bound. For gl:vertexArrayAttribBinding/3, Vaobj
7460 is the name of the vertex array object.
7461 External documentation.
7463 vertexAttribDivisor(Index :: i(), Divisor :: i()) -> ok
7465 gl:vertexAttribDivisor/2 modifies the rate at which generic ver‐
7467 tex attributes advance when rendering multiple instances of
7468 primitives in a single draw call. If Divisor is zero, the attri‐
7469 bute at slot Index advances once per vertex. If Divisor is non-
7470 zero, the attribute advances once per Divisor instances of the
7471 set(s) of vertices being rendered. An attribute is referred to
7472 as instanced if its ?GL_VERTEX_ATTRIB_ARRAY_DIVISOR value is
7473 non-zero.
7474 External documentation.
7476 vertexAttribFormat(Attribindex :: i(),
7478 Size :: i(),
7479 Type :: enum(),
7480 Normalized :: 0 | 1,
7481 Relativeoffset :: i()) ->
7482 ok
7483 gl:vertexAttribFormat/5, gl:vertexAttribIFormat/4 and gl:vertex‐
7485 AttribLFormat/4, as well as gl:vertexArrayAttribFormat/6,
7486 gl:vertexArrayAttribIFormat/5 and gl:vertexArrayAttribLFormat/5
7487 specify the organization of data in vertex arrays. The first
7488 three calls operate on the bound vertex array object, whereas
7489 the last three ones modify the state of a vertex array object
7490 with ID Vaobj. Attribindex specifies the index of the generic
7491 vertex attribute array whose data layout is being described, and
7492 must be less than the value of ?GL_MAX_VERTEX_ATTRIBS.
7493 External documentation.
7495 vertexAttribIFormat(Attribindex :: i(),
7497 Size :: i(),
7498 Type :: enum(),
7499 Relativeoffset :: i()) ->
7500 ok
7501 No documentation available.
7503 vertexAttribIPointer(Index :: i(),
7505 Size :: i(),
7506 Type :: enum(),
7507 Stride :: i(),
7508 Pointer :: offset() | mem()) ->
7509 ok
7510 No documentation available.
7512 vertexAttribL1d(Index :: i(), X :: f()) -> ok
7514 vertexAttribL1dv(Index :: i(), X2 :: {X :: f()}) -> ok
7516 vertexAttribL2d(Index :: i(), X :: f(), Y :: f()) -> ok
7518 vertexAttribL2dv(Index :: i(), X2 :: {X :: f(), Y :: f()}) -> ok
7520 vertexAttribL3d(Index :: i(), X :: f(), Y :: f(), Z :: f()) -> ok
7522 vertexAttribL3dv(Index :: i(),
7524 X2 :: {X :: f(), Y :: f(), Z :: f()}) ->
7525 ok
7526 vertexAttribL4d(Index :: i(),
7528 X :: f(),
7529 Y :: f(),
7530 Z :: f(),
7531 W :: f()) ->
7532 ok
7533 vertexAttribL4dv(Index :: i(),
7535 X2 :: {X :: f(), Y :: f(), Z :: f(), W :: f()}) ->
7536 ok
7537 No documentation available.
7539 vertexAttribLFormat(Attribindex :: i(),
7541 Size :: i(),
7542 Type :: enum(),
7543 Relativeoffset :: i()) ->
7544 ok
7545 No documentation available.
7547 vertexAttribLPointer(Index :: i(),
7549 Size :: i(),
7550 Type :: enum(),
7551 Stride :: i(),
7552 Pointer :: offset() | mem()) ->
7553 ok
7554 No documentation available.
7556 vertexAttribPointer(Index, Size, Type, Normalized, Stride,
7558 Pointer) ->
7559 ok
7560 Types:
7562 Index = Size = i()
7564 Type = enum()
7565 Normalized = 0 | 1
7566 Stride = i()
7567 Pointer = offset() | mem()
7568 gl:vertexAttribPointer/6, gl:vertexAttribIPointer/5 and gl:ver‐
7570 texAttribLPointer/5 specify the location and data format of the
7571 array of generic vertex attributes at index Index to use when
7572 rendering. Size specifies the number of components per attribute
7573 and must be 1, 2, 3, 4, or ?GL_BGRA. Type specifies the data
7574 type of each component, and Stride specifies the byte stride
7575 from one attribute to the next, allowing vertices and attributes
7576 to be packed into a single array or stored in separate arrays.
7577 External documentation.
7579 vertexBindingDivisor(Bindingindex :: i(), Divisor :: i()) -> ok
7581 gl:vertexBindingDivisor/2 and gl:vertexArrayBindingDivisor/3
7583 modify the rate at which generic vertex attributes advance when
7584 rendering multiple instances of primitives in a single draw com‐
7585 mand. If Divisor is zero, the attributes using the buffer bound
7586 to Bindingindex advance once per vertex. If Divisor is non-zero,
7587 the attributes advance once per Divisor instances of the set(s)
7588 of vertices being rendered. An attribute is referred to as in‐
7589 stanced if the corresponding Divisor value is non-zero.
7590 External documentation.
7592 vertexBlendARB(Count :: i()) -> ok
7594 No documentation available.
7596 vertexPointer(Size :: i(),
7598 Type :: enum(),
7599 Stride :: i(),
7600 Ptr :: offset() | mem()) ->
7601 ok
7602 gl:vertexPointer/4 specifies the location and data format of an
7604 array of vertex coordinates to use when rendering. Size speci‐
7605 fies the number of coordinates per vertex, and must be 2, 3, or
7606 4. Type specifies the data type of each coordinate, and Stride
7607 specifies the byte stride from one vertex to the next, allowing
7608 vertices and attributes to be packed into a single array or
7609 stored in separate arrays. (Single-array storage may be more ef‐
7610 ficient on some implementations; see gl:interleavedArrays/3.)
7611 External documentation.
7613 viewport(X :: i(), Y :: i(), Width :: i(), Height :: i()) -> ok
7615 gl:viewport/4 specifies the affine transformation of x and y
7617 from normalized device coordinates to window coordinates. Let (x
7618 nd y nd) be normalized device coordinates. Then the window coor‐
7619 dinates (x w y w) are computed as follows:
7620 External documentation.
7622 viewportArrayv(First :: i(), V :: [{f(), f(), f(), f()}]) -> ok
7624 No documentation available.
7626 viewportIndexedf(Index :: i(),
7628 X :: f(),
7629 Y :: f(),
7630 W :: f(),
7631 H :: f()) ->
7632 ok
7633 viewportIndexedfv(Index :: i(), V :: {f(), f(), f(), f()}) -> ok
7635 gl:viewportIndexedf/5 and gl:viewportIndexedfv/2 specify the pa‐
7637 rameters for a single viewport. Index specifies the index of the
7638 viewport to modify. Index must be less than the value of
7639 ?GL_MAX_VIEWPORTS. For gl:viewportIndexedf/5, X, Y, W, and H
7640 specify the left, bottom, width and height of the viewport in
7641 pixels, respectively. For gl:viewportIndexedfv/2, V contains the
7642 address of an array of floating point values specifying the left
7643 ( x), bottom ( y), width ( w), and height ( h) of each viewport,
7644 in that order. x and y give the location of the viewport's lower
7645 left corner, and w and h give the width and height of the view‐
7646 port, respectively. The viewport specifies the affine transfor‐
7647 mation of x and y from normalized device coordinates to window
7648 coordinates. Let (x nd y nd) be normalized device coordinates.
7649 Then the window coordinates (x w y w) are computed as follows:
7650 External documentation.
7652 waitSync(Sync :: i(), Flags :: i(), Timeout :: i()) -> ok
7654 gl:waitSync/3 causes the GL server to block and wait until Sync
7656 becomes signaled. Sync is the name of an existing sync object
7657 upon which to wait. Flags and Timeout are currently not used and
7658 must be set to zero and the special value ?GL_TIMEOUT_IGNORED,
7659 respectively
7660 Flags and Timeout are placeholders for anticipated future exten‐
7662 sions of sync object capabilities. They must have these reserved
7663 values in order that existing code calling gl:waitSync/3 operate
7664 properly in the presence of such extensions.
7665 External documentation.
7667 weightbvARB(Weights :: [i()]) -> ok
7669 weightdvARB(Weights :: [f()]) -> ok
7671 weightfvARB(Weights :: [f()]) -> ok
7673 weightivARB(Weights :: [i()]) -> ok
7675 weightsvARB(Weights :: [i()]) -> ok
7677 weightubvARB(Weights :: [i()]) -> ok
7679 weightuivARB(Weights :: [i()]) -> ok
7681 weightusvARB(Weights :: [i()]) -> ok
7683 No documentation available.
7685 windowPos2d(X :: f(), Y :: f()) -> ok
7687 windowPos2dv(X1 :: {X :: f(), Y :: f()}) -> ok
7689 windowPos2f(X :: f(), Y :: f()) -> ok
7691 windowPos2fv(X1 :: {X :: f(), Y :: f()}) -> ok
7693 windowPos2i(X :: i(), Y :: i()) -> ok
7695 windowPos2iv(X1 :: {X :: i(), Y :: i()}) -> ok
7697 windowPos2s(X :: i(), Y :: i()) -> ok
7699 windowPos2sv(X1 :: {X :: i(), Y :: i()}) -> ok
7701 windowPos3d(X :: f(), Y :: f(), Z :: f()) -> ok
7703 windowPos3dv(X1 :: {X :: f(), Y :: f(), Z :: f()}) -> ok
7705 windowPos3f(X :: f(), Y :: f(), Z :: f()) -> ok
7707 windowPos3fv(X1 :: {X :: f(), Y :: f(), Z :: f()}) -> ok
7709 windowPos3i(X :: i(), Y :: i(), Z :: i()) -> ok
7711 windowPos3iv(X1 :: {X :: i(), Y :: i(), Z :: i()}) -> ok
7713 windowPos3s(X :: i(), Y :: i(), Z :: i()) -> ok
7715 windowPos3sv(X1 :: {X :: i(), Y :: i(), Z :: i()}) -> ok
7717 The GL maintains a 3D position in window coordinates. This posi‐
7719 tion, called the raster position, is used to position pixel and
7720 bitmap write operations. It is maintained with subpixel accu‐
7721 racy. See gl:bitmap/7, gl:drawPixels/5, and gl:copyPixels/5.
7722 External documentation.
7724Ericsson AB wx 2.1 gl(3)