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NAME
gl - Standard OpenGL api.
DESCRIPTION
Standard OpenGL api. See www.khronos.org
Booleans are represented by integers 0 and 1.
DATA TYPES
clamp() = float():
0.0..1.0
enum() = non_neg_integer():
See wx/include/gl.hrl
matrix() = matrix12() | matrix16():
matrix12() = {float(), float(), float(), float(), float(), float(), float(), float(),
float(), float(), float(), float()}:
matrix16() = {float(), float(), float(), float(), float(), float(), float(), float(),
float(), float(), float(), float(), float(), float(), float(), float()}:
mem() = binary() | tuple():
Memory block
offset() = non_neg_integer():
Offset in memory block
EXPORTS
clearIndex(C) -> ok
Types:
C = float()
Specify the clear value for the color index buffers
gl:clearIndex specifies the index used by gl:clear/1 to clear the color index
buffers. C is not clamped. Rather, C is converted to a fixed-point value with
unspecified precision to the right of the binary point. The integer part of this
value is then masked with 2 m-1, where m is the number of bits in a color index
stored in the frame buffer.
See external documentation.
clearColor(Red, Green, Blue, Alpha) -> ok
Types:
Red = clamp()
Green = clamp()
Blue = clamp()
Alpha = clamp()
Specify clear values for the color buffers
gl:clearColor specifies the red, green, blue, and alpha values used by gl:clear/1
to clear the color buffers. Values specified by gl:clearColor are clamped to the
range [0 1].
See external documentation.
clear(Mask) -> ok
Types:
Mask = integer()
Clear buffers to preset values
gl:clear sets the bitplane area of the window to values previously selected by
gl:clearColor , gl:clearDepth, and gl:clearStencil. Multiple color buffers can be
cleared simultaneously by selecting more than one buffer at a time using
gl:drawBuffer/1 .
See external documentation.
indexMask(Mask) -> ok
Types:
Mask = integer()
Control the writing of individual bits in the color index buffers
gl:indexMask controls the writing of individual bits in the color index buffers.
The least significant n bits of Mask , where n is the number of bits in a color
index buffer, specify a mask. Where a 1 (one) appears in the mask, it's possible to
write to the corresponding bit in the color index buffer (or buffers). Where a 0
(zero) appears, the corresponding bit is write-protected.
See external documentation.
colorMask(Red, Green, Blue, Alpha) -> ok
Types:
Red = 0 | 1
Green = 0 | 1
Blue = 0 | 1
Alpha = 0 | 1
Enable and disable writing of frame buffer color components
gl:colorMask and gl:colorMaski specify whether the individual color components in
the frame buffer can or cannot be written. gl:colorMaski sets the mask for a
specific draw buffer, whereas gl:colorMask sets the mask for all draw buffers. If
Red is ?GL_FALSE, for example, no change is made to the red component of any pixel
in any of the color buffers, regardless of the drawing operation attempted.
See external documentation.
alphaFunc(Func, Ref) -> ok
Types:
Func = enum()
Ref = clamp()
Specify the alpha test function
The alpha test discards fragments depending on the outcome of a comparison between
an incoming fragment's alpha value and a constant reference value. gl:alphaFunc
specifies the reference value and the comparison function. The comparison is
performed only if alpha testing is enabled. By default, it is not enabled. (See
gl:enable/1 and gl:enable/1 of ?GL_ALPHA_TEST.)
See external documentation.
blendFunc(Sfactor, Dfactor) -> ok
Types:
Sfactor = enum()
Dfactor = enum()
Specify pixel arithmetic
Pixels can be drawn using a function that blends the incoming (source) RGBA values
with the RGBA values that are already in the frame buffer (the destination values).
Blending is initially disabled. Use gl:enable/1 and gl:enable/1 with argument
?GL_BLEND to enable and disable blending.
See external documentation.
logicOp(Opcode) -> ok
Types:
Opcode = enum()
Specify a logical pixel operation for rendering
gl:logicOp specifies a logical operation that, when enabled, is applied between the
incoming RGBA color and the RGBA color at the corresponding location in the frame
buffer. To enable or disable the logical operation, call gl:enable/1 and
gl:enable/1 using the symbolic constant ?GL_COLOR_LOGIC_OP. The initial value is
disabled.
See external documentation.
cullFace(Mode) -> ok
Types:
Mode = enum()
Specify whether front- or back-facing facets can be culled
gl:cullFace specifies whether front- or back-facing facets are culled (as specified
by mode) when facet culling is enabled. Facet culling is initially disabled. To
enable and disable facet culling, call the gl:enable/1 and gl:enable/1 commands
with the argument ?GL_CULL_FACE. Facets include triangles, quadrilaterals,
polygons, and rectangles.
See external documentation.
frontFace(Mode) -> ok
Types:
Mode = enum()
Define front- and back-facing polygons
In a scene composed entirely of opaque closed surfaces, back-facing polygons are
never visible. Eliminating these invisible polygons has the obvious benefit of
speeding up the rendering of the image. To enable and disable elimination of back-
facing polygons, call gl:enable/1 and gl:enable/1 with argument ?GL_CULL_FACE.
See external documentation.
pointSize(Size) -> ok
Types:
Size = float()
Specify the diameter of rasterized points
gl:pointSize specifies the rasterized diameter of points. If point size mode is
disabled (see gl:enable/1 with parameter ?GL_PROGRAM_POINT_SIZE), this value will
be used to rasterize points. Otherwise, the value written to the shading language
built-in variable gl_PointSize will be used.
See external documentation.
lineWidth(Width) -> ok
Types:
Width = float()
Specify the width of rasterized lines
gl:lineWidth specifies the rasterized width of both aliased and antialiased lines.
Using a line width other than 1 has different effects, depending on whether line
antialiasing is enabled. To enable and disable line antialiasing, call gl:enable/1
and gl:enable/1 with argument ?GL_LINE_SMOOTH. Line antialiasing is initially
disabled.
See external documentation.
lineStipple(Factor, Pattern) -> ok
Types:
Factor = integer()
Pattern = integer()
Specify the line stipple pattern
Line stippling masks out certain fragments produced by rasterization; those
fragments will not be drawn. The masking is achieved by using three parameters: the
16-bit line stipple pattern Pattern , the repeat count Factor , and an integer
stipple counter s.
See external documentation.
polygonMode(Face, Mode) -> ok
Types:
Face = enum()
Mode = enum()
Select a polygon rasterization mode
gl:polygonMode controls the interpretation of polygons for rasterization. Face
describes which polygons Mode applies to: both front and back-facing polygons
(?GL_FRONT_AND_BACK ). The polygon mode affects only the final rasterization of
polygons. In particular, a polygon's vertices are lit and the polygon is clipped
and possibly culled before these modes are applied.
See external documentation.
polygonOffset(Factor, Units) -> ok
Types:
Factor = float()
Units = float()
Set the scale and units used to calculate depth values
When ?GL_POLYGON_OFFSET_FILL, ?GL_POLYGON_OFFSET_LINE, or ?GL_POLYGON_OFFSET_POINT
is enabled, each fragment's depth value will be offset after it is interpolated
from the depth values of the appropriate vertices. The value of the offset is
factor×DZ+r×units, where DZ is a measurement of the change in depth relative to the
screen area of the polygon, and r is the smallest value that is guaranteed to
produce a resolvable offset for a given implementation. The offset is added before
the depth test is performed and before the value is written into the depth buffer.
See external documentation.
polygonStipple(Mask) -> ok
Types:
Mask = binary()
Set the polygon stippling pattern
Polygon stippling, like line stippling (see gl:lineStipple/2 ), masks out certain
fragments produced by rasterization, creating a pattern. Stippling is independent
of polygon antialiasing.
See external documentation.
getPolygonStipple() -> binary()
Return the polygon stipple pattern
gl:getPolygonStipple returns to Pattern a 32×32 polygon stipple pattern. The
pattern is packed into memory as if gl:readPixels/7 with both height and width of
32, type of ?GL_BITMAP, and format of ?GL_COLOR_INDEX were called, and the stipple
pattern were stored in an internal 32×32 color index buffer. Unlike gl:readPixels/7
, however, pixel transfer operations (shift, offset, pixel map) are not applied to
the returned stipple image.
See external documentation.
edgeFlag(Flag) -> ok
Types:
Flag = 0 | 1
Flag edges as either boundary or nonboundary
Each vertex of a polygon, separate triangle, or separate quadrilateral specified
between a gl:'begin'/1 / gl:'begin'/1 pair is marked as the start of either a
boundary or nonboundary edge. If the current edge flag is true when the vertex is
specified, the vertex is marked as the start of a boundary edge. Otherwise, the
vertex is marked as the start of a nonboundary edge. gl:edgeFlag sets the edge flag
bit to ?GL_TRUE if Flag is ?GL_TRUE and to ?GL_FALSE otherwise.
See external documentation.
edgeFlagv(Flag) -> ok
Types:
Flag = {Flag::0 | 1}
Equivalent to edgeFlag(Flag).
scissor(X, Y, Width, Height) -> ok
Types:
X = integer()
Y = integer()
Width = integer()
Height = integer()
Define the scissor box
gl:scissor defines a rectangle, called the scissor box, in window coordinates. The
first two arguments, X and Y , specify the lower left corner of the box. Width and
Height specify the width and height of the box.
See external documentation.
clipPlane(Plane, Equation) -> ok
Types:
Plane = enum()
Equation = {float(), float(), float(), float()}
Specify a plane against which all geometry is clipped
Geometry is always clipped against the boundaries of a six-plane frustum in x, y ,
and z. gl:clipPlane allows the specification of additional planes, not necessarily
perpendicular to the x, y, or z axis, against which all geometry is clipped. To
determine the maximum number of additional clipping planes, call gl:getBooleanv/1
with argument ?GL_MAX_CLIP_PLANES. All implementations support at least six such
clipping planes. Because the resulting clipping region is the intersection of the
defined half-spaces, it is always convex.
See external documentation.
getClipPlane(Plane) -> {float(), float(), float(), float()}
Types:
Plane = enum()
Return the coefficients of the specified clipping plane
gl:getClipPlane returns in Equation the four coefficients of the plane equation for
Plane .
See external documentation.
drawBuffer(Mode) -> ok
Types:
Mode = enum()
Specify which color buffers are to be drawn into
When colors are written to the frame buffer, they are written into the color
buffers specified by gl:drawBuffer. The specifications are as follows:
See external documentation.
readBuffer(Mode) -> ok
Types:
Mode = enum()
Select a color buffer source for pixels
gl:readBuffer specifies a color buffer as the source for subsequent gl:readPixels/7
, gl:copyTexImage1D/7 , gl:copyTexImage2D/8 , gl:copyTexSubImage1D/6 ,
gl:copyTexSubImage2D/8 , and gl:copyTexSubImage3D/9 commands. Mode accepts one of
twelve or more predefined values. In a fully configured system, ?GL_FRONT,
?GL_LEFT, and ?GL_FRONT_LEFT all name the front left buffer, ?GL_FRONT_RIGHT and
?GL_RIGHT name the front right buffer, and ?GL_BACK_LEFT and ?GL_BACK name the back
left buffer. Further more, the constants ?GL_COLOR_ATTACHMENTi may be used to
indicate the ith color attachment where i ranges from zero to the value of
?GL_MAX_COLOR_ATTACHMENTS minus one.
See external documentation.
enable(Cap) -> ok
Types:
Cap = enum()
Enable or disable server-side GL capabilities
gl:enable and gl:enable/1 enable and disable various capabilities. Use
gl:isEnabled/1 or gl:getBooleanv/1 to determine the current setting of any
capability. The initial value for each capability with the exception of ?GL_DITHER
and ?GL_MULTISAMPLE is ?GL_FALSE. The initial value for ?GL_DITHER and
?GL_MULTISAMPLE is ?GL_TRUE.
See external documentation.
disable(Cap) -> ok
Types:
Cap = enum()
See enable/1
isEnabled(Cap) -> 0 | 1
Types:
Cap = enum()
Test whether a capability is enabled
gl:isEnabled returns ?GL_TRUE if Cap is an enabled capability and returns ?GL_FALSE
otherwise. Boolean states that are indexed may be tested with gl:isEnabledi . For
gl:isEnabledi, Index specifies the index of the capability to test. Index must be
between zero and the count of indexed capabilities for Cap . Initially all
capabilities except ?GL_DITHER are disabled; ?GL_DITHER is initially enabled.
See external documentation.
enableClientState(Cap) -> ok
Types:
Cap = enum()
Enable or disable client-side capability
gl:enableClientState and gl:enableClientState/1 enable or disable individual
client-side capabilities. By default, all client-side capabilities are disabled.
Both gl:enableClientState and gl:enableClientState/1 take a single argument, Cap ,
which can assume one of the following values:
See external documentation.
disableClientState(Cap) -> ok
Types:
Cap = enum()
See enableClientState/1
getBooleanv(Pname) -> [0 | 1]
Types:
Pname = enum()
Return the value or values of a selected parameter
These four commands return values for simple state variables in GL. Pname is a
symbolic constant indicating the state variable to be returned, and Params is a
pointer to an array of the indicated type in which to place the returned data.
See external documentation.
getDoublev(Pname) -> [float()]
Types:
Pname = enum()
See getBooleanv/1
getFloatv(Pname) -> [float()]
Types:
Pname = enum()
See getBooleanv/1
getIntegerv(Pname) -> [integer()]
Types:
Pname = enum()
See getBooleanv/1
pushAttrib(Mask) -> ok
Types:
Mask = integer()
Push and pop the server attribute stack
gl:pushAttrib takes one argument, a mask that indicates which groups of state
variables to save on the attribute stack. Symbolic constants are used to set bits
in the mask. Mask is typically constructed by specifying the bitwise-or of several
of these constants together. The special mask ?GL_ALL_ATTRIB_BITS can be used to
save all stackable states.
See external documentation.
popAttrib() -> ok
See pushAttrib/1
pushClientAttrib(Mask) -> ok
Types:
Mask = integer()
Push and pop the client attribute stack
gl:pushClientAttrib takes one argument, a mask that indicates which groups of
client-state variables to save on the client attribute stack. Symbolic constants
are used to set bits in the mask. Mask is typically constructed by specifying the
bitwise-or of several of these constants together. The special mask
?GL_CLIENT_ALL_ATTRIB_BITS can be used to save all stackable client state.
See external documentation.
popClientAttrib() -> ok
See pushClientAttrib/1
renderMode(Mode) -> integer()
Types:
Mode = enum()
Set rasterization mode
gl:renderMode sets the rasterization mode. It takes one argument, Mode , which can
assume one of three predefined values:
See external documentation.
getError() -> enum()
Return error information
gl:getError returns the value of the error flag. Each detectable error is assigned
a numeric code and symbolic name. When an error occurs, the error flag is set to
the appropriate error code value. No other errors are recorded until gl:getError is
called, the error code is returned, and the flag is reset to ?GL_NO_ERROR. If a
call to gl:getError returns ?GL_NO_ERROR, there has been no detectable error since
the last call to gl:getError , or since the GL was initialized.
See external documentation.
getString(Name) -> string()
Types:
Name = enum()
Return a string describing the current GL connection
gl:getString returns a pointer to a static string describing some aspect of the
current GL connection. Name can be one of the following:
See external documentation.
finish() -> ok
Block until all GL execution is complete
gl:finish does not return until the effects of all previously called GL commands
are complete. Such effects include all changes to GL state, all changes to
connection state, and all changes to the frame buffer contents.
See external documentation.
flush() -> ok
Force execution of GL commands in finite time
Different GL implementations buffer commands in several different locations,
including network buffers and the graphics accelerator itself. gl:flush empties all
of these buffers, causing all issued commands to be executed as quickly as they are
accepted by the actual rendering engine. Though this execution may not be completed
in any particular time period, it does complete in finite time.
See external documentation.
hint(Target, Mode) -> ok
Types:
Target = enum()
Mode = enum()
Specify implementation-specific hints
Certain aspects of GL behavior, when there is room for interpretation, can be
controlled with hints. A hint is specified with two arguments. Target is a symbolic
constant indicating the behavior to be controlled, and Mode is another symbolic
constant indicating the desired behavior. The initial value for each Target is
?GL_DONT_CARE . Mode can be one of the following:
See external documentation.
clearDepth(Depth) -> ok
Types:
Depth = clamp()
Specify the clear value for the depth buffer
gl:clearDepth specifies the depth value used by gl:clear/1 to clear the depth
buffer. Values specified by gl:clearDepth are clamped to the range [0 1].
See external documentation.
depthFunc(Func) -> ok
Types:
Func = enum()
Specify the value used for depth buffer comparisons
gl:depthFunc specifies the function used to compare each incoming pixel depth value
with the depth value present in the depth buffer. The comparison is performed only
if depth testing is enabled. (See gl:enable/1 and gl:enable/1 of ?GL_DEPTH_TEST .)
See external documentation.
depthMask(Flag) -> ok
Types:
Flag = 0 | 1
Enable or disable writing into the depth buffer
gl:depthMask specifies whether the depth buffer is enabled for writing. If Flag is
?GL_FALSE, depth buffer writing is disabled. Otherwise, it is enabled. Initially,
depth buffer writing is enabled.
See external documentation.
depthRange(Near_val, Far_val) -> ok
Types:
Near_val = clamp()
Far_val = clamp()
Specify mapping of depth values from normalized device coordinates to window
coordinates
After clipping and division by w, depth coordinates range from -1 to 1,
corresponding to the near and far clipping planes. gl:depthRange specifies a linear
mapping of the normalized depth coordinates in this range to window depth
coordinates. Regardless of the actual depth buffer implementation, window
coordinate depth values are treated as though they range from 0 through 1 (like
color components). Thus, the values accepted by gl:depthRange are both clamped to
this range before they are accepted.
See external documentation.
clearAccum(Red, Green, Blue, Alpha) -> ok
Types:
Red = float()
Green = float()
Blue = float()
Alpha = float()
Specify clear values for the accumulation buffer
gl:clearAccum specifies the red, green, blue, and alpha values used by gl:clear/1
to clear the accumulation buffer.
See external documentation.
accum(Op, Value) -> ok
Types:
Op = enum()
Value = float()
Operate on the accumulation buffer
The accumulation buffer is an extended-range color buffer. Images are not rendered
into it. Rather, images rendered into one of the color buffers are added to the
contents of the accumulation buffer after rendering. Effects such as antialiasing
(of points, lines, and polygons), motion blur, and depth of field can be created by
accumulating images generated with different transformation matrices.
See external documentation.
matrixMode(Mode) -> ok
Types:
Mode = enum()
Specify which matrix is the current matrix
gl:matrixMode sets the current matrix mode. Mode can assume one of four values:
See external documentation.
ortho(Left, Right, Bottom, Top, Near_val, Far_val) -> ok
Types:
Left = float()
Right = float()
Bottom = float()
Top = float()
Near_val = float()
Far_val = float()
Multiply the current matrix with an orthographic matrix
gl:ortho describes a transformation that produces a parallel projection. The
current matrix (see gl:matrixMode/1 ) is multiplied by this matrix and the result
replaces the current matrix, as if gl:multMatrixd/1 were called with the following
matrix as its argument:
See external documentation.
frustum(Left, Right, Bottom, Top, Near_val, Far_val) -> ok
Types:
Left = float()
Right = float()
Bottom = float()
Top = float()
Near_val = float()
Far_val = float()
Multiply the current matrix by a perspective matrix
gl:frustum describes a perspective matrix that produces a perspective projection.
The current matrix (see gl:matrixMode/1 ) is multiplied by this matrix and the
result replaces the current matrix, as if gl:multMatrixd/1 were called with the
following matrix as its argument:
See external documentation.
viewport(X, Y, Width, Height) -> ok
Types:
X = integer()
Y = integer()
Width = integer()
Height = integer()
Set the viewport
gl:viewport specifies the affine transformation of x and y from normalized device
coordinates to window coordinates. Let (x nd y nd) be normalized device
coordinates. Then the window coordinates (x w y w) are computed as follows:
See external documentation.
pushMatrix() -> ok
Push and pop the current matrix stack
There is a stack of matrices for each of the matrix modes. In ?GL_MODELVIEW mode,
the stack depth is at least 32. In the other modes, ?GL_COLOR, ?GL_PROJECTION , and
?GL_TEXTURE, the depth is at least 2. The current matrix in any mode is the matrix
on the top of the stack for that mode.
See external documentation.
popMatrix() -> ok
See pushMatrix/0
loadIdentity() -> ok
Replace the current matrix with the identity matrix
gl:loadIdentity replaces the current matrix with the identity matrix. It is
semantically equivalent to calling gl:loadMatrixd/1 with the identity matrix
See external documentation.
loadMatrixd(M) -> ok
Types:
M = matrix()
Replace the current matrix with the specified matrix
gl:loadMatrix replaces the current matrix with the one whose elements are specified
by M . The current matrix is the projection matrix, modelview matrix, or texture
matrix, depending on the current matrix mode (see gl:matrixMode/1 ).
See external documentation.
loadMatrixf(M) -> ok
Types:
M = matrix()
See loadMatrixd/1
multMatrixd(M) -> ok
Types:
M = matrix()
Multiply the current matrix with the specified matrix
gl:multMatrix multiplies the current matrix with the one specified using M , and
replaces the current matrix with the product.
See external documentation.
multMatrixf(M) -> ok
Types:
M = matrix()
See multMatrixd/1
rotated(Angle, X, Y, Z) -> ok
Types:
Angle = float()
X = float()
Y = float()
Z = float()
Multiply the current matrix by a rotation matrix
gl:rotate produces a rotation of Angle degrees around the vector (x y z). The
current matrix (see gl:matrixMode/1 ) is multiplied by a rotation matrix with the
product replacing the current matrix, as if gl:multMatrixd/1 were called with the
following matrix as its argument:
See external documentation.
rotatef(Angle, X, Y, Z) -> ok
Types:
Angle = float()
X = float()
Y = float()
Z = float()
See rotated/4
scaled(X, Y, Z) -> ok
Types:
X = float()
Y = float()
Z = float()
Multiply the current matrix by a general scaling matrix
gl:scale produces a nonuniform scaling along the x, y, and z axes. The three
parameters indicate the desired scale factor along each of the three axes.
See external documentation.
scalef(X, Y, Z) -> ok
Types:
X = float()
Y = float()
Z = float()
See scaled/3
translated(X, Y, Z) -> ok
Types:
X = float()
Y = float()
Z = float()
Multiply the current matrix by a translation matrix
gl:translate produces a translation by (x y z). The current matrix (see
gl:matrixMode/1 ) is multiplied by this translation matrix, with the product
replacing the current matrix, as if gl:multMatrixd/1 were called with the following
matrix for its argument:
See external documentation.
translatef(X, Y, Z) -> ok
Types:
X = float()
Y = float()
Z = float()
See translated/3
isList(List) -> 0 | 1
Types:
List = integer()
Determine if a name corresponds to a display list
gl:isList returns ?GL_TRUE if List is the name of a display list and returns
?GL_FALSE if it is not, or if an error occurs.
See external documentation.
deleteLists(List, Range) -> ok
Types:
List = integer()
Range = integer()
Delete a contiguous group of display lists
gl:deleteLists causes a contiguous group of display lists to be deleted. List is
the name of the first display list to be deleted, and Range is the number of
display lists to delete. All display lists d with list<= d<= list+range-1 are
deleted.
See external documentation.
genLists(Range) -> integer()
Types:
Range = integer()
Generate a contiguous set of empty display lists
gl:genLists has one argument, Range . It returns an integer n such that Range
contiguous empty display lists, named n, n+1, ..., n+range-1, are created. If Range
is 0, if there is no group of Range contiguous names available, or if any error is
generated, no display lists are generated, and 0 is returned.
See external documentation.
newList(List, Mode) -> ok
Types:
List = integer()
Mode = enum()
Create or replace a display list
Display lists are groups of GL commands that have been stored for subsequent
execution. Display lists are created with gl:newList. All subsequent commands are
placed in the display list, in the order issued, until gl:endList/0 is called.
See external documentation.
endList() -> ok
glBeginList
See external documentation.
callList(List) -> ok
Types:
List = integer()
Execute a display list
gl:callList causes the named display list to be executed. The commands saved in the
display list are executed in order, just as if they were called without using a
display list. If List has not been defined as a display list, gl:callList is
ignored.
See external documentation.
callLists(Lists) -> ok
Types:
Lists = [integer()]
Execute a list of display lists
gl:callLists causes each display list in the list of names passed as Lists to be
executed. As a result, the commands saved in each display list are executed in
order, just as if they were called without using a display list. Names of display
lists that have not been defined are ignored.
See external documentation.
listBase(Base) -> ok
Types:
Base = integer()
set the display-list base for
gl:callLists/1
gl:callLists/1 specifies an array of offsets. Display-list names are generated by
adding Base to each offset. Names that reference valid display lists are executed;
the others are ignored.
See external documentation.
begin(Mode) -> ok
Types:
Mode = enum()
Delimit the vertices of a primitive or a group of like primitives
gl:'begin' and gl:'begin'/1 delimit the vertices that define a primitive or a group
of like primitives. gl:'begin' accepts a single argument that specifies in which of
ten ways the vertices are interpreted. Taking n as an integer count starting at
one, and N as the total number of vertices specified, the interpretations are as
follows:
See external documentation.
end() -> ok
See 'begin'/1
vertex2d(X, Y) -> ok
Types:
X = float()
Y = float()
Specify a vertex
gl:vertex commands are used within gl:'begin'/1 / gl:'begin'/1 pairs to specify
point, line, and polygon vertices. The current color, normal, texture coordinates,
and fog coordinate are associated with the vertex when gl:vertex is called.
See external documentation.
vertex2f(X, Y) -> ok
Types:
X = float()
Y = float()
See vertex2d/2
vertex2i(X, Y) -> ok
Types:
X = integer()
Y = integer()
See vertex2d/2
vertex2s(X, Y) -> ok
Types:
X = integer()
Y = integer()
See vertex2d/2
vertex3d(X, Y, Z) -> ok
Types:
X = float()
Y = float()
Z = float()
See vertex2d/2
vertex3f(X, Y, Z) -> ok
Types:
X = float()
Y = float()
Z = float()
See vertex2d/2
vertex3i(X, Y, Z) -> ok
Types:
X = integer()
Y = integer()
Z = integer()
See vertex2d/2
vertex3s(X, Y, Z) -> ok
Types:
X = integer()
Y = integer()
Z = integer()
See vertex2d/2
vertex4d(X, Y, Z, W) -> ok
Types:
X = float()
Y = float()
Z = float()
W = float()
See vertex2d/2
vertex4f(X, Y, Z, W) -> ok
Types:
X = float()
Y = float()
Z = float()
W = float()
See vertex2d/2
vertex4i(X, Y, Z, W) -> ok
Types:
X = integer()
Y = integer()
Z = integer()
W = integer()
See vertex2d/2
vertex4s(X, Y, Z, W) -> ok
Types:
X = integer()
Y = integer()
Z = integer()
W = integer()
See vertex2d/2
vertex2dv(V) -> ok
Types:
V = {X::float(), Y::float()}
Equivalent to vertex2d(X, Y).
vertex2fv(V) -> ok
Types:
V = {X::float(), Y::float()}
Equivalent to vertex2f(X, Y).
vertex2iv(V) -> ok
Types:
V = {X::integer(), Y::integer()}
Equivalent to vertex2i(X, Y).
vertex2sv(V) -> ok
Types:
V = {X::integer(), Y::integer()}
Equivalent to vertex2s(X, Y).
vertex3dv(V) -> ok
Types:
V = {X::float(), Y::float(), Z::float()}
Equivalent to vertex3d(X, Y, Z).
vertex3fv(V) -> ok
Types:
V = {X::float(), Y::float(), Z::float()}
Equivalent to vertex3f(X, Y, Z).
vertex3iv(V) -> ok
Types:
V = {X::integer(), Y::integer(), Z::integer()}
Equivalent to vertex3i(X, Y, Z).
vertex3sv(V) -> ok
Types:
V = {X::integer(), Y::integer(), Z::integer()}
Equivalent to vertex3s(X, Y, Z).
vertex4dv(V) -> ok
Types:
V = {X::float(), Y::float(), Z::float(), W::float()}
Equivalent to vertex4d(X, Y, Z, W).
vertex4fv(V) -> ok
Types:
V = {X::float(), Y::float(), Z::float(), W::float()}
Equivalent to vertex4f(X, Y, Z, W).
vertex4iv(V) -> ok
Types:
V = {X::integer(), Y::integer(), Z::integer(), W::integer()}
Equivalent to vertex4i(X, Y, Z, W).
vertex4sv(V) -> ok
Types:
V = {X::integer(), Y::integer(), Z::integer(), W::integer()}
Equivalent to vertex4s(X, Y, Z, W).
normal3b(Nx, Ny, Nz) -> ok
Types:
Nx = integer()
Ny = integer()
Nz = integer()
Set the current normal vector
The current normal is set to the given coordinates whenever gl:normal is issued.
Byte, short, or integer arguments are converted to floating-point format with a
linear mapping that maps the most positive representable integer value to 1.0 and
the most negative representable integer value to -1.0.
See external documentation.
normal3d(Nx, Ny, Nz) -> ok
Types:
Nx = float()
Ny = float()
Nz = float()
See normal3b/3
normal3f(Nx, Ny, Nz) -> ok
Types:
Nx = float()
Ny = float()
Nz = float()
See normal3b/3
normal3i(Nx, Ny, Nz) -> ok
Types:
Nx = integer()
Ny = integer()
Nz = integer()
See normal3b/3
normal3s(Nx, Ny, Nz) -> ok
Types:
Nx = integer()
Ny = integer()
Nz = integer()
See normal3b/3
normal3bv(V) -> ok
Types:
V = {Nx::integer(), Ny::integer(), Nz::integer()}
Equivalent to normal3b(Nx, Ny, Nz).
normal3dv(V) -> ok
Types:
V = {Nx::float(), Ny::float(), Nz::float()}
Equivalent to normal3d(Nx, Ny, Nz).
normal3fv(V) -> ok
Types:
V = {Nx::float(), Ny::float(), Nz::float()}
Equivalent to normal3f(Nx, Ny, Nz).
normal3iv(V) -> ok
Types:
V = {Nx::integer(), Ny::integer(), Nz::integer()}
Equivalent to normal3i(Nx, Ny, Nz).
normal3sv(V) -> ok
Types:
V = {Nx::integer(), Ny::integer(), Nz::integer()}
Equivalent to normal3s(Nx, Ny, Nz).
indexd(C) -> ok
Types:
C = float()
Set the current color index
gl:index updates the current (single-valued) color index. It takes one argument,
the new value for the current color index.
See external documentation.
indexf(C) -> ok
Types:
C = float()
See indexd/1
indexi(C) -> ok
Types:
C = integer()
See indexd/1
indexs(C) -> ok
Types:
C = integer()
See indexd/1
indexub(C) -> ok
Types:
C = integer()
See indexd/1
indexdv(C) -> ok
Types:
C = {C::float()}
Equivalent to indexd(C).
indexfv(C) -> ok
Types:
C = {C::float()}
Equivalent to indexf(C).
indexiv(C) -> ok
Types:
C = {C::integer()}
Equivalent to indexi(C).
indexsv(C) -> ok
Types:
C = {C::integer()}
Equivalent to indexs(C).
indexubv(C) -> ok
Types:
C = {C::integer()}
Equivalent to indexub(C).
color3b(Red, Green, Blue) -> ok
Types:
Red = integer()
Green = integer()
Blue = integer()
Set the current color
The GL stores both a current single-valued color index and a current four-valued
RGBA color. gl:color sets a new four-valued RGBA color. gl:color has two major
variants: gl:color3 and gl:color4. gl:color3 variants specify new red, green, and
blue values explicitly and set the current alpha value to 1.0 (full intensity)
implicitly. gl:color4 variants specify all four color components explicitly.
See external documentation.
color3d(Red, Green, Blue) -> ok
Types:
Red = float()
Green = float()
Blue = float()
See color3b/3
color3f(Red, Green, Blue) -> ok
Types:
Red = float()
Green = float()
Blue = float()
See color3b/3
color3i(Red, Green, Blue) -> ok
Types:
Red = integer()
Green = integer()
Blue = integer()
See color3b/3
color3s(Red, Green, Blue) -> ok
Types:
Red = integer()
Green = integer()
Blue = integer()
See color3b/3
color3ub(Red, Green, Blue) -> ok
Types:
Red = integer()
Green = integer()
Blue = integer()
See color3b/3
color3ui(Red, Green, Blue) -> ok
Types:
Red = integer()
Green = integer()
Blue = integer()
See color3b/3
color3us(Red, Green, Blue) -> ok
Types:
Red = integer()
Green = integer()
Blue = integer()
See color3b/3
color4b(Red, Green, Blue, Alpha) -> ok
Types:
Red = integer()
Green = integer()
Blue = integer()
Alpha = integer()
See color3b/3
color4d(Red, Green, Blue, Alpha) -> ok
Types:
Red = float()
Green = float()
Blue = float()
Alpha = float()
See color3b/3
color4f(Red, Green, Blue, Alpha) -> ok
Types:
Red = float()
Green = float()
Blue = float()
Alpha = float()
See color3b/3
color4i(Red, Green, Blue, Alpha) -> ok
Types:
Red = integer()
Green = integer()
Blue = integer()
Alpha = integer()
See color3b/3
color4s(Red, Green, Blue, Alpha) -> ok
Types:
Red = integer()
Green = integer()
Blue = integer()
Alpha = integer()
See color3b/3
color4ub(Red, Green, Blue, Alpha) -> ok
Types:
Red = integer()
Green = integer()
Blue = integer()
Alpha = integer()
See color3b/3
color4ui(Red, Green, Blue, Alpha) -> ok
Types:
Red = integer()
Green = integer()
Blue = integer()
Alpha = integer()
See color3b/3
color4us(Red, Green, Blue, Alpha) -> ok
Types:
Red = integer()
Green = integer()
Blue = integer()
Alpha = integer()
See color3b/3
color3bv(V) -> ok
Types:
V = {Red::integer(), Green::integer(), Blue::integer()}
Equivalent to color3b(Red, Green, Blue).
color3dv(V) -> ok
Types:
V = {Red::float(), Green::float(), Blue::float()}
Equivalent to color3d(Red, Green, Blue).
color3fv(V) -> ok
Types:
V = {Red::float(), Green::float(), Blue::float()}
Equivalent to color3f(Red, Green, Blue).
color3iv(V) -> ok
Types:
V = {Red::integer(), Green::integer(), Blue::integer()}
Equivalent to color3i(Red, Green, Blue).
color3sv(V) -> ok
Types:
V = {Red::integer(), Green::integer(), Blue::integer()}
Equivalent to color3s(Red, Green, Blue).
color3ubv(V) -> ok
Types:
V = {Red::integer(), Green::integer(), Blue::integer()}
Equivalent to color3ub(Red, Green, Blue).
color3uiv(V) -> ok
Types:
V = {Red::integer(), Green::integer(), Blue::integer()}
Equivalent to color3ui(Red, Green, Blue).
color3usv(V) -> ok
Types:
V = {Red::integer(), Green::integer(), Blue::integer()}
Equivalent to color3us(Red, Green, Blue).
color4bv(V) -> ok
Types:
V = {Red::integer(), Green::integer(), Blue::integer(), Alpha::integer()}
Equivalent to color4b(Red, Green, Blue, Alpha).
color4dv(V) -> ok
Types:
V = {Red::float(), Green::float(), Blue::float(), Alpha::float()}
Equivalent to color4d(Red, Green, Blue, Alpha).
color4fv(V) -> ok
Types:
V = {Red::float(), Green::float(), Blue::float(), Alpha::float()}
Equivalent to color4f(Red, Green, Blue, Alpha).
color4iv(V) -> ok
Types:
V = {Red::integer(), Green::integer(), Blue::integer(), Alpha::integer()}
Equivalent to color4i(Red, Green, Blue, Alpha).
color4sv(V) -> ok
Types:
V = {Red::integer(), Green::integer(), Blue::integer(), Alpha::integer()}
Equivalent to color4s(Red, Green, Blue, Alpha).
color4ubv(V) -> ok
Types:
V = {Red::integer(), Green::integer(), Blue::integer(), Alpha::integer()}
Equivalent to color4ub(Red, Green, Blue, Alpha).
color4uiv(V) -> ok
Types:
V = {Red::integer(), Green::integer(), Blue::integer(), Alpha::integer()}
Equivalent to color4ui(Red, Green, Blue, Alpha).
color4usv(V) -> ok
Types:
V = {Red::integer(), Green::integer(), Blue::integer(), Alpha::integer()}
Equivalent to color4us(Red, Green, Blue, Alpha).
texCoord1d(S) -> ok
Types:
S = float()
Set the current texture coordinates
gl:texCoord specifies texture coordinates in one, two, three, or four dimensions.
gl:texCoord1 sets the current texture coordinates to (s 0 0 1); a call to
gl:texCoord2 sets them to (s t 0 1). Similarly, gl:texCoord3 specifies the texture
coordinates as (s t r 1), and gl:texCoord4 defines all four components explicitly
as (s t r q).
See external documentation.
texCoord1f(S) -> ok
Types:
S = float()
See texCoord1d/1
texCoord1i(S) -> ok
Types:
S = integer()
See texCoord1d/1
texCoord1s(S) -> ok
Types:
S = integer()
See texCoord1d/1
texCoord2d(S, T) -> ok
Types:
S = float()
T = float()
See texCoord1d/1
texCoord2f(S, T) -> ok
Types:
S = float()
T = float()
See texCoord1d/1
texCoord2i(S, T) -> ok
Types:
S = integer()
T = integer()
See texCoord1d/1
texCoord2s(S, T) -> ok
Types:
S = integer()
T = integer()
See texCoord1d/1
texCoord3d(S, T, R) -> ok
Types:
S = float()
T = float()
R = float()
See texCoord1d/1
texCoord3f(S, T, R) -> ok
Types:
S = float()
T = float()
R = float()
See texCoord1d/1
texCoord3i(S, T, R) -> ok
Types:
S = integer()
T = integer()
R = integer()
See texCoord1d/1
texCoord3s(S, T, R) -> ok
Types:
S = integer()
T = integer()
R = integer()
See texCoord1d/1
texCoord4d(S, T, R, Q) -> ok
Types:
S = float()
T = float()
R = float()
Q = float()
See texCoord1d/1
texCoord4f(S, T, R, Q) -> ok
Types:
S = float()
T = float()
R = float()
Q = float()
See texCoord1d/1
texCoord4i(S, T, R, Q) -> ok
Types:
S = integer()
T = integer()
R = integer()
Q = integer()
See texCoord1d/1
texCoord4s(S, T, R, Q) -> ok
Types:
S = integer()
T = integer()
R = integer()
Q = integer()
See texCoord1d/1
texCoord1dv(V) -> ok
Types:
V = {S::float()}
Equivalent to texCoord1d(S).
texCoord1fv(V) -> ok
Types:
V = {S::float()}
Equivalent to texCoord1f(S).
texCoord1iv(V) -> ok
Types:
V = {S::integer()}
Equivalent to texCoord1i(S).
texCoord1sv(V) -> ok
Types:
V = {S::integer()}
Equivalent to texCoord1s(S).
texCoord2dv(V) -> ok
Types:
V = {S::float(), T::float()}
Equivalent to texCoord2d(S, T).
texCoord2fv(V) -> ok
Types:
V = {S::float(), T::float()}
Equivalent to texCoord2f(S, T).
texCoord2iv(V) -> ok
Types:
V = {S::integer(), T::integer()}
Equivalent to texCoord2i(S, T).
texCoord2sv(V) -> ok
Types:
V = {S::integer(), T::integer()}
Equivalent to texCoord2s(S, T).
texCoord3dv(V) -> ok
Types:
V = {S::float(), T::float(), R::float()}
Equivalent to texCoord3d(S, T, R).
texCoord3fv(V) -> ok
Types:
V = {S::float(), T::float(), R::float()}
Equivalent to texCoord3f(S, T, R).
texCoord3iv(V) -> ok
Types:
V = {S::integer(), T::integer(), R::integer()}
Equivalent to texCoord3i(S, T, R).
texCoord3sv(V) -> ok
Types:
V = {S::integer(), T::integer(), R::integer()}
Equivalent to texCoord3s(S, T, R).
texCoord4dv(V) -> ok
Types:
V = {S::float(), T::float(), R::float(), Q::float()}
Equivalent to texCoord4d(S, T, R, Q).
texCoord4fv(V) -> ok
Types:
V = {S::float(), T::float(), R::float(), Q::float()}
Equivalent to texCoord4f(S, T, R, Q).
texCoord4iv(V) -> ok
Types:
V = {S::integer(), T::integer(), R::integer(), Q::integer()}
Equivalent to texCoord4i(S, T, R, Q).
texCoord4sv(V) -> ok
Types:
V = {S::integer(), T::integer(), R::integer(), Q::integer()}
Equivalent to texCoord4s(S, T, R, Q).
rasterPos2d(X, Y) -> ok
Types:
X = float()
Y = float()
Specify the raster position for pixel operations
The GL maintains a 3D position in window coordinates. This position, called the
raster position, is used to position pixel and bitmap write operations. It is
maintained with subpixel accuracy. See gl:bitmap/7 , gl:drawPixels/5 , and
gl:copyPixels/5 .
See external documentation.
rasterPos2f(X, Y) -> ok
Types:
X = float()
Y = float()
See rasterPos2d/2
rasterPos2i(X, Y) -> ok
Types:
X = integer()
Y = integer()
See rasterPos2d/2
rasterPos2s(X, Y) -> ok
Types:
X = integer()
Y = integer()
See rasterPos2d/2
rasterPos3d(X, Y, Z) -> ok
Types:
X = float()
Y = float()
Z = float()
See rasterPos2d/2
rasterPos3f(X, Y, Z) -> ok
Types:
X = float()
Y = float()
Z = float()
See rasterPos2d/2
rasterPos3i(X, Y, Z) -> ok
Types:
X = integer()
Y = integer()
Z = integer()
See rasterPos2d/2
rasterPos3s(X, Y, Z) -> ok
Types:
X = integer()
Y = integer()
Z = integer()
See rasterPos2d/2
rasterPos4d(X, Y, Z, W) -> ok
Types:
X = float()
Y = float()
Z = float()
W = float()
See rasterPos2d/2
rasterPos4f(X, Y, Z, W) -> ok
Types:
X = float()
Y = float()
Z = float()
W = float()
See rasterPos2d/2
rasterPos4i(X, Y, Z, W) -> ok
Types:
X = integer()
Y = integer()
Z = integer()
W = integer()
See rasterPos2d/2
rasterPos4s(X, Y, Z, W) -> ok
Types:
X = integer()
Y = integer()
Z = integer()
W = integer()
See rasterPos2d/2
rasterPos2dv(V) -> ok
Types:
V = {X::float(), Y::float()}
Equivalent to rasterPos2d(X, Y).
rasterPos2fv(V) -> ok
Types:
V = {X::float(), Y::float()}
Equivalent to rasterPos2f(X, Y).
rasterPos2iv(V) -> ok
Types:
V = {X::integer(), Y::integer()}
Equivalent to rasterPos2i(X, Y).
rasterPos2sv(V) -> ok
Types:
V = {X::integer(), Y::integer()}
Equivalent to rasterPos2s(X, Y).
rasterPos3dv(V) -> ok
Types:
V = {X::float(), Y::float(), Z::float()}
Equivalent to rasterPos3d(X, Y, Z).
rasterPos3fv(V) -> ok
Types:
V = {X::float(), Y::float(), Z::float()}
Equivalent to rasterPos3f(X, Y, Z).
rasterPos3iv(V) -> ok
Types:
V = {X::integer(), Y::integer(), Z::integer()}
Equivalent to rasterPos3i(X, Y, Z).
rasterPos3sv(V) -> ok
Types:
V = {X::integer(), Y::integer(), Z::integer()}
Equivalent to rasterPos3s(X, Y, Z).
rasterPos4dv(V) -> ok
Types:
V = {X::float(), Y::float(), Z::float(), W::float()}
Equivalent to rasterPos4d(X, Y, Z, W).
rasterPos4fv(V) -> ok
Types:
V = {X::float(), Y::float(), Z::float(), W::float()}
Equivalent to rasterPos4f(X, Y, Z, W).
rasterPos4iv(V) -> ok
Types:
V = {X::integer(), Y::integer(), Z::integer(), W::integer()}
Equivalent to rasterPos4i(X, Y, Z, W).
rasterPos4sv(V) -> ok
Types:
V = {X::integer(), Y::integer(), Z::integer(), W::integer()}
Equivalent to rasterPos4s(X, Y, Z, W).
rectd(X1, Y1, X2, Y2) -> ok
Types:
X1 = float()
Y1 = float()
X2 = float()
Y2 = float()
Draw a rectangle
gl:rect supports efficient specification of rectangles as two corner points. Each
rectangle command takes four arguments, organized either as two consecutive pairs
of (x y) coordinates or as two pointers to arrays, each containing an (x y) pair.
The resulting rectangle is defined in the z=0 plane.
See external documentation.
rectf(X1, Y1, X2, Y2) -> ok
Types:
X1 = float()
Y1 = float()
X2 = float()
Y2 = float()
See rectd/4
recti(X1, Y1, X2, Y2) -> ok
Types:
X1 = integer()
Y1 = integer()
X2 = integer()
Y2 = integer()
See rectd/4
rects(X1, Y1, X2, Y2) -> ok
Types:
X1 = integer()
Y1 = integer()
X2 = integer()
Y2 = integer()
See rectd/4
rectdv(V1, V2) -> ok
Types:
V1 = {float(), float()}
V2 = {float(), float()}
See rectd/4
rectfv(V1, V2) -> ok
Types:
V1 = {float(), float()}
V2 = {float(), float()}
See rectd/4
rectiv(V1, V2) -> ok
Types:
V1 = {integer(), integer()}
V2 = {integer(), integer()}
See rectd/4
rectsv(V1, V2) -> ok
Types:
V1 = {integer(), integer()}
V2 = {integer(), integer()}
See rectd/4
vertexPointer(Size, Type, Stride, Ptr) -> ok
Types:
Size = integer()
Type = enum()
Stride = integer()
Ptr = offset() | mem()
Define an array of vertex data
gl:vertexPointer specifies the location and data format of an array of vertex
coordinates to use when rendering. Size specifies the number of coordinates per
vertex, and must be 2, 3, or 4. Type specifies the data type of each coordinate,
and Stride specifies the byte stride from one vertex to the next, allowing vertices
and attributes to be packed into a single array or stored in separate arrays.
(Single-array storage may be more efficient on some implementations; see
gl:interleavedArrays/3 .)
See external documentation.
normalPointer(Type, Stride, Ptr) -> ok
Types:
Type = enum()
Stride = integer()
Ptr = offset() | mem()
Define an array of normals
gl:normalPointer specifies the location and data format of an array of normals to
use when rendering. Type specifies the data type of each normal coordinate, and
Stride specifies the byte stride from one normal to the next, allowing vertices and
attributes to be packed into a single array or stored in separate arrays. (Single-
array storage may be more efficient on some implementations; see
gl:interleavedArrays/3 .)
See external documentation.
colorPointer(Size, Type, Stride, Ptr) -> ok
Types:
Size = integer()
Type = enum()
Stride = integer()
Ptr = offset() | mem()
Define an array of colors
gl:colorPointer specifies the location and data format of an array of color
components to use when rendering. Size specifies the number of components per
color, and must be 3 or 4. Type specifies the data type of each color component,
and Stride specifies the byte stride from one color to the next, allowing vertices
and attributes to be packed into a single array or stored in separate arrays.
(Single-array storage may be more efficient on some implementations; see
gl:interleavedArrays/3 .)
See external documentation.
indexPointer(Type, Stride, Ptr) -> ok
Types:
Type = enum()
Stride = integer()
Ptr = offset() | mem()
Define an array of color indexes
gl:indexPointer specifies the location and data format of an array of color indexes
to use when rendering. Type specifies the data type of each color index and Stride
specifies the byte stride from one color index to the next, allowing vertices and
attributes to be packed into a single array or stored in separate arrays.
See external documentation.
texCoordPointer(Size, Type, Stride, Ptr) -> ok
Types:
Size = integer()
Type = enum()
Stride = integer()
Ptr = offset() | mem()
Define an array of texture coordinates
gl:texCoordPointer specifies the location and data format of an array of texture
coordinates to use when rendering. Size specifies the number of coordinates per
texture coordinate set, and must be 1, 2, 3, or 4. Type specifies the data type of
each texture coordinate, and Stride specifies the byte stride from one texture
coordinate set to the next, allowing vertices and attributes to be packed into a
single array or stored in separate arrays. (Single-array storage may be more
efficient on some implementations; see gl:interleavedArrays/3 .)
See external documentation.
edgeFlagPointer(Stride, Ptr) -> ok
Types:
Stride = integer()
Ptr = offset() | mem()
Define an array of edge flags
gl:edgeFlagPointer specifies the location and data format of an array of boolean
edge flags to use when rendering. Stride specifies the byte stride from one edge
flag to the next, allowing vertices and attributes to be packed into a single array
or stored in separate arrays.
See external documentation.
arrayElement(I) -> ok
Types:
I = integer()
Render a vertex using the specified vertex array element
gl:arrayElement commands are used within gl:'begin'/1 / gl:'begin'/1 pairs to
specify vertex and attribute data for point, line, and polygon primitives. If
?GL_VERTEX_ARRAY is enabled when gl:arrayElement is called, a single vertex is
drawn, using vertex and attribute data taken from location I of the enabled arrays.
If ?GL_VERTEX_ARRAY is not enabled, no drawing occurs but the attributes
corresponding to the enabled arrays are modified.
See external documentation.
drawArrays(Mode, First, Count) -> ok
Types:
Mode = enum()
First = integer()
Count = integer()
Render primitives from array data
gl:drawArrays specifies multiple geometric primitives with very few subroutine
calls. Instead of calling a GL procedure to pass each individual vertex, normal,
texture coordinate, edge flag, or color, you can prespecify separate arrays of
vertices, normals, and colors and use them to construct a sequence of primitives
with a single call to gl:drawArrays .
See external documentation.
drawElements(Mode, Count, Type, Indices) -> ok
Types:
Mode = enum()
Count = integer()
Type = enum()
Indices = offset() | mem()
Render primitives from array data
gl:drawElements specifies multiple geometric primitives with very few subroutine
calls. Instead of calling a GL function to pass each individual vertex, normal,
texture coordinate, edge flag, or color, you can prespecify separate arrays of
vertices, normals, and so on, and use them to construct a sequence of primitives
with a single call to gl:drawElements .
See external documentation.
interleavedArrays(Format, Stride, Pointer) -> ok
Types:
Format = enum()
Stride = integer()
Pointer = offset() | mem()
Simultaneously specify and enable several interleaved arrays
gl:interleavedArrays lets you specify and enable individual color, normal, texture
and vertex arrays whose elements are part of a larger aggregate array element. For
some implementations, this is more efficient than specifying the arrays separately.
See external documentation.
shadeModel(Mode) -> ok
Types:
Mode = enum()
Select flat or smooth shading
GL primitives can have either flat or smooth shading. Smooth shading, the default,
causes the computed colors of vertices to be interpolated as the primitive is
rasterized, typically assigning different colors to each resulting pixel fragment.
Flat shading selects the computed color of just one vertex and assigns it to all
the pixel fragments generated by rasterizing a single primitive. In either case,
the computed color of a vertex is the result of lighting if lighting is enabled, or
it is the current color at the time the vertex was specified if lighting is
disabled.
See external documentation.
lightf(Light, Pname, Param) -> ok
Types:
Light = enum()
Pname = enum()
Param = float()
Set light source parameters
gl:light sets the values of individual light source parameters. Light names the
light and is a symbolic name of the form ?GL_LIGHT i, where i ranges from 0 to the
value of ?GL_MAX_LIGHTS - 1. Pname specifies one of ten light source parameters,
again by symbolic name. Params is either a single value or a pointer to an array
that contains the new values.
See external documentation.
lighti(Light, Pname, Param) -> ok
Types:
Light = enum()
Pname = enum()
Param = integer()
See lightf/3
lightfv(Light, Pname, Params) -> ok
Types:
Light = enum()
Pname = enum()
Params = tuple()
See lightf/3
lightiv(Light, Pname, Params) -> ok
Types:
Light = enum()
Pname = enum()
Params = tuple()
See lightf/3
getLightfv(Light, Pname) -> {float(), float(), float(), float()}
Types:
Light = enum()
Pname = enum()
Return light source parameter values
gl:getLight returns in Params the value or values of a light source parameter.
Light names the light and is a symbolic name of the form ?GL_LIGHT i where i ranges
from 0 to the value of ?GL_MAX_LIGHTS - 1. ?GL_MAX_LIGHTS is an implementation
dependent constant that is greater than or equal to eight. Pname specifies one of
ten light source parameters, again by symbolic name.
See external documentation.
getLightiv(Light, Pname) -> {integer(), integer(), integer(), integer()}
Types:
Light = enum()
Pname = enum()
See getLightfv/2
lightModelf(Pname, Param) -> ok
Types:
Pname = enum()
Param = float()
Set the lighting model parameters
gl:lightModel sets the lighting model parameter. Pname names a parameter and Params
gives the new value. There are three lighting model parameters:
See external documentation.
lightModeli(Pname, Param) -> ok
Types:
Pname = enum()
Param = integer()
See lightModelf/2
lightModelfv(Pname, Params) -> ok
Types:
Pname = enum()
Params = tuple()
See lightModelf/2
lightModeliv(Pname, Params) -> ok
Types:
Pname = enum()
Params = tuple()
See lightModelf/2
materialf(Face, Pname, Param) -> ok
Types:
Face = enum()
Pname = enum()
Param = float()
Specify material parameters for the lighting model
gl:material assigns values to material parameters. There are two matched sets of
material parameters. One, the front-facing set, is used to shade points, lines,
bitmaps, and all polygons (when two-sided lighting is disabled), or just front-
facing polygons (when two-sided lighting is enabled). The other set, back-facing,
is used to shade back-facing polygons only when two-sided lighting is enabled.
Refer to the gl:lightModelf/2 reference page for details concerning one- and two-
sided lighting calculations.
See external documentation.
materiali(Face, Pname, Param) -> ok
Types:
Face = enum()
Pname = enum()
Param = integer()
See materialf/3
materialfv(Face, Pname, Params) -> ok
Types:
Face = enum()
Pname = enum()
Params = tuple()
See materialf/3
materialiv(Face, Pname, Params) -> ok
Types:
Face = enum()
Pname = enum()
Params = tuple()
See materialf/3
getMaterialfv(Face, Pname) -> {float(), float(), float(), float()}
Types:
Face = enum()
Pname = enum()
Return material parameters
gl:getMaterial returns in Params the value or values of parameter Pname of material
Face . Six parameters are defined:
See external documentation.
getMaterialiv(Face, Pname) -> {integer(), integer(), integer(), integer()}
Types:
Face = enum()
Pname = enum()
See getMaterialfv/2
colorMaterial(Face, Mode) -> ok
Types:
Face = enum()
Mode = enum()
Cause a material color to track the current color
gl:colorMaterial specifies which material parameters track the current color. When
?GL_COLOR_MATERIAL is enabled, the material parameter or parameters specified by
Mode , of the material or materials specified by Face , track the current color at
all times.
See external documentation.
pixelZoom(Xfactor, Yfactor) -> ok
Types:
Xfactor = float()
Yfactor = float()
Specify the pixel zoom factors
gl:pixelZoom specifies values for the x and y zoom factors. During the execution of
gl:drawPixels/5 or gl:copyPixels/5 , if ( xr, yr) is the current raster position,
and a given element is in the mth row and nth column of the pixel rectangle, then
pixels whose centers are in the rectangle with corners at
See external documentation.
pixelStoref(Pname, Param) -> ok
Types:
Pname = enum()
Param = float()
Set pixel storage modes
gl:pixelStore sets pixel storage modes that affect the operation of subsequent
gl:readPixels/7 as well as the unpacking of texture patterns (see gl:texImage1D/8 ,
gl:texImage2D/9 , gl:texImage3D/10 , gl:texSubImage1D/7 , gl:texSubImage1D/7 ,
gl:texSubImage1D/7 ), gl:compressedTexImage1D/7 , gl:compressedTexImage2D/8 ,
gl:compressedTexImage3D/9 , gl:compressedTexSubImage1D/7 ,
gl:compressedTexSubImage2D/9 or gl:compressedTexSubImage1D/7 .
See external documentation.
pixelStorei(Pname, Param) -> ok
Types:
Pname = enum()
Param = integer()
See pixelStoref/2
pixelTransferf(Pname, Param) -> ok
Types:
Pname = enum()
Param = float()
Set pixel transfer modes
gl:pixelTransfer sets pixel transfer modes that affect the operation of subsequent
gl:copyPixels/5 , gl:copyTexImage1D/7 , gl:copyTexImage2D/8 ,
gl:copyTexSubImage1D/6 , gl:copyTexSubImage2D/8 , gl:copyTexSubImage3D/9 ,
gl:drawPixels/5 , gl:readPixels/7 , gl:texImage1D/8 , gl:texImage2D/9 ,
gl:texImage3D/10 , gl:texSubImage1D/7 , gl:texSubImage1D/7 , and gl:texSubImage1D/7
commands. Additionally, if the ARB_imaging subset is supported, the routines
gl:colorTable/6 , gl:colorSubTable/6 , gl:convolutionFilter1D/6 ,
gl:convolutionFilter2D/7 , gl:histogram/4 , gl:minmax/3 , and
gl:separableFilter2D/8 are also affected. The algorithms that are specified by
pixel transfer modes operate on pixels after they are read from the frame buffer (
gl:copyPixels/5 gl:copyTexImage1D/7 , gl:copyTexImage2D/8 , gl:copyTexSubImage1D/6
, gl:copyTexSubImage2D/8 , gl:copyTexSubImage3D/9 , and gl:readPixels/7 ), or
unpacked from client memory ( gl:drawPixels/5 , gl:texImage1D/8 , gl:texImage2D/9 ,
gl:texImage3D/10 , gl:texSubImage1D/7 , gl:texSubImage1D/7 , and gl:texSubImage1D/7
). Pixel transfer operations happen in the same order, and in the same manner,
regardless of the command that resulted in the pixel operation. Pixel storage modes
(see gl:pixelStoref/2 ) control the unpacking of pixels being read from client
memory and the packing of pixels being written back into client memory.
See external documentation.
pixelTransferi(Pname, Param) -> ok
Types:
Pname = enum()
Param = integer()
See pixelTransferf/2
pixelMapfv(Map, Mapsize, Values) -> ok
Types:
Map = enum()
Mapsize = integer()
Values = binary()
Set up pixel transfer maps
gl:pixelMap sets up translation tables, or maps, used by gl:copyPixels/5 ,
gl:copyTexImage1D/7 , gl:copyTexImage2D/8 , gl:copyTexSubImage1D/6 ,
gl:copyTexSubImage2D/8 , gl:copyTexSubImage3D/9 , gl:drawPixels/5 , gl:readPixels/7
, gl:texImage1D/8 , gl:texImage2D/9 , gl:texImage3D/10 , gl:texSubImage1D/7 ,
gl:texSubImage1D/7 , and gl:texSubImage1D/7 . Additionally, if the ARB_imaging
subset is supported, the routines gl:colorTable/6 , gl:colorSubTable/6 ,
gl:convolutionFilter1D/6 , gl:convolutionFilter2D/7 , gl:histogram/4 , gl:minmax/3
, and gl:separableFilter2D/8 . Use of these maps is described completely in the
gl:pixelTransferf/2 reference page, and partly in the reference pages for the pixel
and texture image commands. Only the specification of the maps is described in this
reference page.
See external documentation.
pixelMapuiv(Map, Mapsize, Values) -> ok
Types:
Map = enum()
Mapsize = integer()
Values = binary()
See pixelMapfv/3
pixelMapusv(Map, Mapsize, Values) -> ok
Types:
Map = enum()
Mapsize = integer()
Values = binary()
See pixelMapfv/3
getPixelMapfv(Map, Values) -> ok
Types:
Map = enum()
Values = mem()
Return the specified pixel map
See the gl:pixelMapfv/3 reference page for a description of the acceptable values
for the Map parameter. gl:getPixelMap returns in Data the contents of the pixel map
specified in Map . Pixel maps are used during the execution of gl:readPixels/7 ,
gl:drawPixels/5 , gl:copyPixels/5 , gl:texImage1D/8 , gl:texImage2D/9 ,
gl:texImage3D/10 , gl:texSubImage1D/7 , gl:texSubImage1D/7 , gl:texSubImage1D/7 ,
gl:copyTexImage1D/7 , gl:copyTexImage2D/8 , gl:copyTexSubImage1D/6 ,
gl:copyTexSubImage2D/8 , and gl:copyTexSubImage3D/9 . to map color indices, stencil
indices, color components, and depth components to other values.
See external documentation.
getPixelMapuiv(Map, Values) -> ok
Types:
Map = enum()
Values = mem()
See getPixelMapfv/2
getPixelMapusv(Map, Values) -> ok
Types:
Map = enum()
Values = mem()
See getPixelMapfv/2
bitmap(Width, Height, Xorig, Yorig, Xmove, Ymove, Bitmap) -> ok
Types:
Width = integer()
Height = integer()
Xorig = float()
Yorig = float()
Xmove = float()
Ymove = float()
Bitmap = offset() | mem()
Draw a bitmap
A bitmap is a binary image. When drawn, the bitmap is positioned relative to the
current raster position, and frame buffer pixels corresponding to 1's in the bitmap
are written using the current raster color or index. Frame buffer pixels
corresponding to 0's in the bitmap are not modified.
See external documentation.
readPixels(X, Y, Width, Height, Format, Type, Pixels) -> ok
Types:
X = integer()
Y = integer()
Width = integer()
Height = integer()
Format = enum()
Type = enum()
Pixels = mem()
Read a block of pixels from the frame buffer
gl:readPixels returns pixel data from the frame buffer, starting with the pixel
whose lower left corner is at location ( X , Y ), into client memory starting at
location Data . Several parameters control the processing of the pixel data before
it is placed into client memory. These parameters are set with gl:pixelStoref/2 .
This reference page describes the effects on gl:readPixels of most, but not all of
the parameters specified by these three commands.
See external documentation.
drawPixels(Width, Height, Format, Type, Pixels) -> ok
Types:
Width = integer()
Height = integer()
Format = enum()
Type = enum()
Pixels = offset() | mem()
Write a block of pixels to the frame buffer
gl:drawPixels reads pixel data from memory and writes it into the frame buffer
relative to the current raster position, provided that the raster position is
valid. Use gl:rasterPos2d/2 or gl:windowPos2d/2 to set the current raster position;
use gl:getBooleanv/1 with argument ?GL_CURRENT_RASTER_POSITION_VALID to determine
if the specified raster position is valid, and gl:getBooleanv/1 with argument
?GL_CURRENT_RASTER_POSITION to query the raster position.
See external documentation.
copyPixels(X, Y, Width, Height, Type) -> ok
Types:
X = integer()
Y = integer()
Width = integer()
Height = integer()
Type = enum()
Copy pixels in the frame buffer
gl:copyPixels copies a screen-aligned rectangle of pixels from the specified frame
buffer location to a region relative to the current raster position. Its operation
is well defined only if the entire pixel source region is within the exposed
portion of the window. Results of copies from outside the window, or from regions
of the window that are not exposed, are hardware dependent and undefined.
See external documentation.
stencilFunc(Func, Ref, Mask) -> ok
Types:
Func = enum()
Ref = integer()
Mask = integer()
Set front and back function and reference value for stencil testing
Stenciling, like depth-buffering, enables and disables drawing on a per-pixel
basis. Stencil planes are first drawn into using GL drawing primitives, then
geometry and images are rendered using the stencil planes to mask out portions of
the screen. Stenciling is typically used in multipass rendering algorithms to
achieve special effects, such as decals, outlining, and constructive solid geometry
rendering.
See external documentation.
stencilMask(Mask) -> ok
Types:
Mask = integer()
Control the front and back writing of individual bits in the stencil planes
gl:stencilMask controls the writing of individual bits in the stencil planes. The
least significant n bits of Mask , where n is the number of bits in the stencil
buffer, specify a mask. Where a 1 appears in the mask, it's possible to write to
the corresponding bit in the stencil buffer. Where a 0 appears, the corresponding
bit is write-protected. Initially, all bits are enabled for writing.
See external documentation.
stencilOp(Fail, Zfail, Zpass) -> ok
Types:
Fail = enum()
Zfail = enum()
Zpass = enum()
Set front and back stencil test actions
Stenciling, like depth-buffering, enables and disables drawing on a per-pixel
basis. You draw into the stencil planes using GL drawing primitives, then render
geometry and images, using the stencil planes to mask out portions of the screen.
Stenciling is typically used in multipass rendering algorithms to achieve special
effects, such as decals, outlining, and constructive solid geometry rendering.
See external documentation.
clearStencil(S) -> ok
Types:
S = integer()
Specify the clear value for the stencil buffer
gl:clearStencil specifies the index used by gl:clear/1 to clear the stencil buffer.
S is masked with 2 m-1, where m is the number of bits in the stencil buffer.
See external documentation.
texGend(Coord, Pname, Param) -> ok
Types:
Coord = enum()
Pname = enum()
Param = float()
Control the generation of texture coordinates
gl:texGen selects a texture-coordinate generation function or supplies coefficients
for one of the functions. Coord names one of the (s, t, r, q ) texture coordinates;
it must be one of the symbols ?GL_S, ?GL_T, ?GL_R , or ?GL_Q. Pname must be one of
three symbolic constants: ?GL_TEXTURE_GEN_MODE , ?GL_OBJECT_PLANE, or
?GL_EYE_PLANE. If Pname is ?GL_TEXTURE_GEN_MODE , then Params chooses a mode, one
of ?GL_OBJECT_LINEAR, ?GL_EYE_LINEAR , ?GL_SPHERE_MAP, ?GL_NORMAL_MAP, or
?GL_REFLECTION_MAP. If Pname is either ?GL_OBJECT_PLANE or ?GL_EYE_PLANE, Params
contains coefficients for the corresponding texture generation function.
See external documentation.
texGenf(Coord, Pname, Param) -> ok
Types:
Coord = enum()
Pname = enum()
Param = float()
See texGend/3
texGeni(Coord, Pname, Param) -> ok
Types:
Coord = enum()
Pname = enum()
Param = integer()
See texGend/3
texGendv(Coord, Pname, Params) -> ok
Types:
Coord = enum()
Pname = enum()
Params = tuple()
See texGend/3
texGenfv(Coord, Pname, Params) -> ok
Types:
Coord = enum()
Pname = enum()
Params = tuple()
See texGend/3
texGeniv(Coord, Pname, Params) -> ok
Types:
Coord = enum()
Pname = enum()
Params = tuple()
See texGend/3
getTexGendv(Coord, Pname) -> {float(), float(), float(), float()}
Types:
Coord = enum()
Pname = enum()
Return texture coordinate generation parameters
gl:getTexGen returns in Params selected parameters of a texture coordinate
generation function that was specified using gl:texGend/3 . Coord names one of the
(s, t, r, q) texture coordinates, using the symbolic constant ?GL_S, ?GL_T, ?GL_R,
or ?GL_Q.
See external documentation.
getTexGenfv(Coord, Pname) -> {float(), float(), float(), float()}
Types:
Coord = enum()
Pname = enum()
See getTexGendv/2
getTexGeniv(Coord, Pname) -> {integer(), integer(), integer(), integer()}
Types:
Coord = enum()
Pname = enum()
See getTexGendv/2
texEnvf(Target, Pname, Param) -> ok
Types:
Target = enum()
Pname = enum()
Param = float()
glTexEnvf
See external documentation.
texEnvi(Target, Pname, Param) -> ok
Types:
Target = enum()
Pname = enum()
Param = integer()
glTexEnvi
See external documentation.
texEnvfv(Target, Pname, Params) -> ok
Types:
Target = enum()
Pname = enum()
Params = tuple()
Set texture environment parameters
A texture environment specifies how texture values are interpreted when a fragment
is textured. When Target is ?GL_TEXTURE_FILTER_CONTROL, Pname must be
?GL_TEXTURE_LOD_BIAS . When Target is ?GL_TEXTURE_ENV, Pname can be
?GL_TEXTURE_ENV_MODE , ?GL_TEXTURE_ENV_COLOR, ?GL_COMBINE_RGB, ?GL_COMBINE_ALPHA,
?GL_RGB_SCALE , ?GL_ALPHA_SCALE, ?GL_SRC0_RGB, ?GL_SRC1_RGB, ?GL_SRC2_RGB,
?GL_SRC0_ALPHA , ?GL_SRC1_ALPHA, or ?GL_SRC2_ALPHA.
See external documentation.
texEnviv(Target, Pname, Params) -> ok
Types:
Target = enum()
Pname = enum()
Params = tuple()
See texEnvfv/3
getTexEnvfv(Target, Pname) -> {float(), float(), float(), float()}
Types:
Target = enum()
Pname = enum()
Return texture environment parameters
gl:getTexEnv returns in Params selected values of a texture environment that was
specified with gl:texEnvfv/3 . Target specifies a texture environment.
See external documentation.
getTexEnviv(Target, Pname) -> {integer(), integer(), integer(), integer()}
Types:
Target = enum()
Pname = enum()
See getTexEnvfv/2
texParameterf(Target, Pname, Param) -> ok
Types:
Target = enum()
Pname = enum()
Param = float()
Set texture parameters
gl:texParameter assigns the value or values in Params to the texture parameter
specified as Pname . Target defines the target texture, either ?GL_TEXTURE_1D ,
?GL_TEXTURE_2D, ?GL_TEXTURE_1D_ARRAY, ?GL_TEXTURE_2D_ARRAY, ?GL_TEXTURE_RECTANGLE ,
or ?GL_TEXTURE_3D. The following symbols are accepted in Pname :
See external documentation.
texParameteri(Target, Pname, Param) -> ok
Types:
Target = enum()
Pname = enum()
Param = integer()
See texParameterf/3
texParameterfv(Target, Pname, Params) -> ok
Types:
Target = enum()
Pname = enum()
Params = tuple()
See texParameterf/3
texParameteriv(Target, Pname, Params) -> ok
Types:
Target = enum()
Pname = enum()
Params = tuple()
See texParameterf/3
getTexParameterfv(Target, Pname) -> {float(), float(), float(), float()}
Types:
Target = enum()
Pname = enum()
Return texture parameter values
gl:getTexParameter returns in Params the value or values of the texture parameter
specified as Pname . Target defines the target texture. ?GL_TEXTURE_1D,
?GL_TEXTURE_2D, ?GL_TEXTURE_3D, ?GL_TEXTURE_1D_ARRAY, ?GL_TEXTURE_2D_ARRAY ,
?GL_TEXTURE_RECTANGLE, ?GL_TEXTURE_CUBE_MAP, ?GL_TEXTURE_CUBE_MAP_ARRAY specify
one-, two-, or three-dimensional, one-dimensional array, two-dimensional array,
rectangle, cube-mapped or cube-mapped array texturing, respectively. Pname accepts
the same symbols as gl:texParameterf/3 , with the same interpretations:
See external documentation.
getTexParameteriv(Target, Pname) -> {integer(), integer(), integer(), integer()}
Types:
Target = enum()
Pname = enum()
See getTexParameterfv/2
getTexLevelParameterfv(Target, Level, Pname) -> {float()}
Types:
Target = enum()
Level = integer()
Pname = enum()
Return texture parameter values for a specific level of detail
gl:getTexLevelParameter returns in Params texture parameter values for a specific
level-of-detail value, specified as Level . Target defines the target texture,
either ?GL_TEXTURE_1D, ?GL_TEXTURE_2D, ?GL_TEXTURE_3D, ?GL_PROXY_TEXTURE_1D ,
?GL_PROXY_TEXTURE_2D, ?GL_PROXY_TEXTURE_3D, ?GL_TEXTURE_CUBE_MAP_POSITIVE_X ,
?GL_TEXTURE_CUBE_MAP_NEGATIVE_X, ?GL_TEXTURE_CUBE_MAP_POSITIVE_Y,
?GL_TEXTURE_CUBE_MAP_NEGATIVE_Y , ?GL_TEXTURE_CUBE_MAP_POSITIVE_Z,
?GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, or ?GL_PROXY_TEXTURE_CUBE_MAP .
See external documentation.
getTexLevelParameteriv(Target, Level, Pname) -> {integer()}
Types:
Target = enum()
Level = integer()
Pname = enum()
See getTexLevelParameterfv/3
texImage1D(Target, Level, InternalFormat, Width, Border, Format, Type, Pixels) -> ok
Types:
Target = enum()
Level = integer()
InternalFormat = integer()
Width = integer()
Border = integer()
Format = enum()
Type = enum()
Pixels = offset() | mem()
Specify a one-dimensional texture image
Texturing maps a portion of a specified texture image onto each graphical primitive
for which texturing is enabled. To enable and disable one-dimensional texturing,
call gl:enable/1 and gl:enable/1 with argument ?GL_TEXTURE_1D.
See external documentation.
texImage2D(Target, Level, InternalFormat, Width, Height, Border, Format, Type, Pixels) ->
ok
Types:
Target = enum()
Level = integer()
InternalFormat = integer()
Width = integer()
Height = integer()
Border = integer()
Format = enum()
Type = enum()
Pixels = offset() | mem()
Specify a two-dimensional texture image
Texturing allows elements of an image array to be read by shaders.
See external documentation.
getTexImage(Target, Level, Format, Type, Pixels) -> ok
Types:
Target = enum()
Level = integer()
Format = enum()
Type = enum()
Pixels = mem()
Return a texture image
gl:getTexImage returns a texture image into Img . Target specifies whether the
desired texture image is one specified by gl:texImage1D/8 (?GL_TEXTURE_1D ),
gl:texImage2D/9 (?GL_TEXTURE_1D_ARRAY, ?GL_TEXTURE_RECTANGLE, ?GL_TEXTURE_2D or any
of ?GL_TEXTURE_CUBE_MAP_*), or gl:texImage3D/10 (?GL_TEXTURE_2D_ARRAY ,
?GL_TEXTURE_3D). Level specifies the level-of-detail number of the desired image.
Format and Type specify the format and type of the desired image array. See the
reference page for gl:texImage1D/8 for a description of the acceptable values for
the Format and Type parameters, respectively.
See external documentation.
genTextures(N) -> [integer()]
Types:
N = integer()
Generate texture names
gl:genTextures returns N texture names in Textures . There is no guarantee that the
names form a contiguous set of integers; however, it is guaranteed that none of the
returned names was in use immediately before the call to gl:genTextures.
See external documentation.
deleteTextures(Textures) -> ok
Types:
Textures = [integer()]
Delete named textures
gl:deleteTextures deletes N textures named by the elements of the array Textures .
After a texture is deleted, it has no contents or dimensionality, and its name is
free for reuse (for example by gl:genTextures/1 ). If a texture that is currently
bound is deleted, the binding reverts to 0 (the default texture).
See external documentation.
bindTexture(Target, Texture) -> ok
Types:
Target = enum()
Texture = integer()
Bind a named texture to a texturing target
gl:bindTexture lets you create or use a named texture. Calling gl:bindTexture with
Target set to ?GL_TEXTURE_1D, ?GL_TEXTURE_2D, ?GL_TEXTURE_3D , or
?GL_TEXTURE_1D_ARRAY, ?GL_TEXTURE_2D_ARRAY, ?GL_TEXTURE_RECTANGLE ,
?GL_TEXTURE_CUBE_MAP, ?GL_TEXTURE_2D_MULTISAMPLE or
?GL_TEXTURE_2D_MULTISAMPLE_ARRAY and Texture set to the name of the new texture
binds the texture name to the target. When a texture is bound to a target, the
previous binding for that target is automatically broken.
See external documentation.
prioritizeTextures(Textures, Priorities) -> ok
Types:
Textures = [integer()]
Priorities = [clamp()]
Set texture residence priority
gl:prioritizeTextures assigns the N texture priorities given in Priorities to the N
textures named in Textures .
See external documentation.
areTexturesResident(Textures) -> {0 | 1, Residences::[0 | 1]}
Types:
Textures = [integer()]
Determine if textures are loaded in texture memory
GL establishes a working set of textures that are resident in texture memory. These
textures can be bound to a texture target much more efficiently than textures that
are not resident.
See external documentation.
isTexture(Texture) -> 0 | 1
Types:
Texture = integer()
Determine if a name corresponds to a texture
gl:isTexture returns ?GL_TRUE if Texture is currently the name of a texture. If
Texture is zero, or is a non-zero value that is not currently the name of a
texture, or if an error occurs, gl:isTexture returns ?GL_FALSE.
See external documentation.
texSubImage1D(Target, Level, Xoffset, Width, Format, Type, Pixels) -> ok
Types:
Target = enum()
Level = integer()
Xoffset = integer()
Width = integer()
Format = enum()
Type = enum()
Pixels = offset() | mem()
glTexSubImage
See external documentation.
texSubImage2D(Target, Level, Xoffset, Yoffset, Width, Height, Format, Type, Pixels) -> ok
Types:
Target = enum()
Level = integer()
Xoffset = integer()
Yoffset = integer()
Width = integer()
Height = integer()
Format = enum()
Type = enum()
Pixels = offset() | mem()
glTexSubImage
See external documentation.
copyTexImage1D(Target, Level, Internalformat, X, Y, Width, Border) -> ok
Types:
Target = enum()
Level = integer()
Internalformat = enum()
X = integer()
Y = integer()
Width = integer()
Border = integer()
Copy pixels into a 1D texture image
gl:copyTexImage1D defines a one-dimensional texture image with pixels from the
current ?GL_READ_BUFFER.
See external documentation.
copyTexImage2D(Target, Level, Internalformat, X, Y, Width, Height, Border) -> ok
Types:
Target = enum()
Level = integer()
Internalformat = enum()
X = integer()
Y = integer()
Width = integer()
Height = integer()
Border = integer()
Copy pixels into a 2D texture image
gl:copyTexImage2D defines a two-dimensional texture image, or cube-map texture
image with pixels from the current ?GL_READ_BUFFER.
See external documentation.
copyTexSubImage1D(Target, Level, Xoffset, X, Y, Width) -> ok
Types:
Target = enum()
Level = integer()
Xoffset = integer()
X = integer()
Y = integer()
Width = integer()
Copy a one-dimensional texture subimage
gl:copyTexSubImage1D replaces a portion of a one-dimensional texture image with
pixels from the current ?GL_READ_BUFFER (rather than from main memory, as is the
case for gl:texSubImage1D/7 ).
See external documentation.
copyTexSubImage2D(Target, Level, Xoffset, Yoffset, X, Y, Width, Height) -> ok
Types:
Target = enum()
Level = integer()
Xoffset = integer()
Yoffset = integer()
X = integer()
Y = integer()
Width = integer()
Height = integer()
Copy a two-dimensional texture subimage
gl:copyTexSubImage2D replaces a rectangular portion of a two-dimensional texture
image or cube-map texture image with pixels from the current ?GL_READ_BUFFER
(rather than from main memory, as is the case for gl:texSubImage1D/7 ).
See external documentation.
map1d(Target, U1, U2, Stride, Order, Points) -> ok
Types:
Target = enum()
U1 = float()
U2 = float()
Stride = integer()
Order = integer()
Points = binary()
glMap
See external documentation.
map1f(Target, U1, U2, Stride, Order, Points) -> ok
Types:
Target = enum()
U1 = float()
U2 = float()
Stride = integer()
Order = integer()
Points = binary()
glMap
See external documentation.
map2d(Target, U1, U2, Ustride, Uorder, V1, V2, Vstride, Vorder, Points) -> ok
Types:
Target = enum()
U1 = float()
U2 = float()
Ustride = integer()
Uorder = integer()
V1 = float()
V2 = float()
Vstride = integer()
Vorder = integer()
Points = binary()
glMap
See external documentation.
map2f(Target, U1, U2, Ustride, Uorder, V1, V2, Vstride, Vorder, Points) -> ok
Types:
Target = enum()
U1 = float()
U2 = float()
Ustride = integer()
Uorder = integer()
V1 = float()
V2 = float()
Vstride = integer()
Vorder = integer()
Points = binary()
glMap
See external documentation.
getMapdv(Target, Query, V) -> ok
Types:
Target = enum()
Query = enum()
V = mem()
Return evaluator parameters
gl:map1d/6 and gl:map1d/6 define evaluators. gl:getMap returns evaluator
parameters. Target chooses a map, Query selects a specific parameter, and V points
to storage where the values will be returned.
See external documentation.
getMapfv(Target, Query, V) -> ok
Types:
Target = enum()
Query = enum()
V = mem()
See getMapdv/3
getMapiv(Target, Query, V) -> ok
Types:
Target = enum()
Query = enum()
V = mem()
See getMapdv/3
evalCoord1d(U) -> ok
Types:
U = float()
Evaluate enabled one- and two-dimensional maps
gl:evalCoord1 evaluates enabled one-dimensional maps at argument U . gl:evalCoord2
does the same for two-dimensional maps using two domain values, U and V . To define
a map, call gl:map1d/6 and gl:map1d/6 ; to enable and disable it, call gl:enable/1
and gl:enable/1 .
See external documentation.
evalCoord1f(U) -> ok
Types:
U = float()
See evalCoord1d/1
evalCoord1dv(U) -> ok
Types:
U = {U::float()}
Equivalent to evalCoord1d(U).
evalCoord1fv(U) -> ok
Types:
U = {U::float()}
Equivalent to evalCoord1f(U).
evalCoord2d(U, V) -> ok
Types:
U = float()
V = float()
See evalCoord1d/1
evalCoord2f(U, V) -> ok
Types:
U = float()
V = float()
See evalCoord1d/1
evalCoord2dv(U) -> ok
Types:
U = {U::float(), V::float()}
Equivalent to evalCoord2d(U, V).
evalCoord2fv(U) -> ok
Types:
U = {U::float(), V::float()}
Equivalent to evalCoord2f(U, V).
mapGrid1d(Un, U1, U2) -> ok
Types:
Un = integer()
U1 = float()
U2 = float()
Define a one- or two-dimensional mesh
gl:mapGrid and gl:evalMesh1/3 are used together to efficiently generate and
evaluate a series of evenly-spaced map domain values. gl:evalMesh1/3 steps through
the integer domain of a one- or two-dimensional grid, whose range is the domain of
the evaluation maps specified by gl:map1d/6 and gl:map1d/6 .
See external documentation.
mapGrid1f(Un, U1, U2) -> ok
Types:
Un = integer()
U1 = float()
U2 = float()
See mapGrid1d/3
mapGrid2d(Un, U1, U2, Vn, V1, V2) -> ok
Types:
Un = integer()
U1 = float()
U2 = float()
Vn = integer()
V1 = float()
V2 = float()
See mapGrid1d/3
mapGrid2f(Un, U1, U2, Vn, V1, V2) -> ok
Types:
Un = integer()
U1 = float()
U2 = float()
Vn = integer()
V1 = float()
V2 = float()
See mapGrid1d/3
evalPoint1(I) -> ok
Types:
I = integer()
Generate and evaluate a single point in a mesh
gl:mapGrid1d/3 and gl:evalMesh1/3 are used in tandem to efficiently generate and
evaluate a series of evenly spaced map domain values. gl:evalPoint can be used to
evaluate a single grid point in the same gridspace that is traversed by
gl:evalMesh1/3 . Calling gl:evalPoint1 is equivalent to calling glEvalCoord1(
i.Δ u+u 1 ); where Δ u=(u 2-u 1)/n
See external documentation.
evalPoint2(I, J) -> ok
Types:
I = integer()
J = integer()
See evalPoint1/1
evalMesh1(Mode, I1, I2) -> ok
Types:
Mode = enum()
I1 = integer()
I2 = integer()
Compute a one- or two-dimensional grid of points or lines
gl:mapGrid1d/3 and gl:evalMesh are used in tandem to efficiently generate and
evaluate a series of evenly-spaced map domain values. gl:evalMesh steps through the
integer domain of a one- or two-dimensional grid, whose range is the domain of the
evaluation maps specified by gl:map1d/6 and gl:map1d/6 . Mode determines whether
the resulting vertices are connected as points, lines, or filled polygons.
See external documentation.
evalMesh2(Mode, I1, I2, J1, J2) -> ok
Types:
Mode = enum()
I1 = integer()
I2 = integer()
J1 = integer()
J2 = integer()
See evalMesh1/3
fogf(Pname, Param) -> ok
Types:
Pname = enum()
Param = float()
Specify fog parameters
Fog is initially disabled. While enabled, fog affects rasterized geometry, bitmaps,
and pixel blocks, but not buffer clear operations. To enable and disable fog, call
gl:enable/1 and gl:enable/1 with argument ?GL_FOG.
See external documentation.
fogi(Pname, Param) -> ok
Types:
Pname = enum()
Param = integer()
See fogf/2
fogfv(Pname, Params) -> ok
Types:
Pname = enum()
Params = tuple()
See fogf/2
fogiv(Pname, Params) -> ok
Types:
Pname = enum()
Params = tuple()
See fogf/2
feedbackBuffer(Size, Type, Buffer) -> ok
Types:
Size = integer()
Type = enum()
Buffer = mem()
Controls feedback mode
The gl:feedbackBuffer function controls feedback. Feedback, like selection, is a GL
mode. The mode is selected by calling gl:renderMode/1 with ?GL_FEEDBACK. When the
GL is in feedback mode, no pixels are produced by rasterization. Instead,
information about primitives that would have been rasterized is fed back to the
application using the GL.
See external documentation.
passThrough(Token) -> ok
Types:
Token = float()
Place a marker in the feedback buffer
See external documentation.
selectBuffer(Size, Buffer) -> ok
Types:
Size = integer()
Buffer = mem()
Establish a buffer for selection mode values
gl:selectBuffer has two arguments: Buffer is a pointer to an array of unsigned
integers, and Size indicates the size of the array. Buffer returns values from the
name stack (see gl:initNames/0 , gl:loadName/1 , gl:pushName/1 ) when the rendering
mode is ?GL_SELECT (see gl:renderMode/1 ). gl:selectBuffer must be issued before
selection mode is enabled, and it must not be issued while the rendering mode is
?GL_SELECT.
See external documentation.
initNames() -> ok
Initialize the name stack
The name stack is used during selection mode to allow sets of rendering commands to
be uniquely identified. It consists of an ordered set of unsigned integers.
gl:initNames causes the name stack to be initialized to its default empty state.
See external documentation.
loadName(Name) -> ok
Types:
Name = integer()
Load a name onto the name stack
The name stack is used during selection mode to allow sets of rendering commands to
be uniquely identified. It consists of an ordered set of unsigned integers and is
initially empty.
See external documentation.
pushName(Name) -> ok
Types:
Name = integer()
Push and pop the name stack
The name stack is used during selection mode to allow sets of rendering commands to
be uniquely identified. It consists of an ordered set of unsigned integers and is
initially empty.
See external documentation.
popName() -> ok
See pushName/1
blendColor(Red, Green, Blue, Alpha) -> ok
Types:
Red = clamp()
Green = clamp()
Blue = clamp()
Alpha = clamp()
Set the blend color
The ?GL_BLEND_COLOR may be used to calculate the source and destination blending
factors. The color components are clamped to the range [0 1] before being stored.
See gl:blendFunc/2 for a complete description of the blending operations. Initially
the ?GL_BLEND_COLOR is set to (0, 0, 0, 0).
See external documentation.
blendEquation(Mode) -> ok
Types:
Mode = enum()
Specify the equation used for both the RGB blend equation and the Alpha blend
equation
The blend equations determine how a new pixel (the ''source'' color) is combined
with a pixel already in the framebuffer (the ''destination'' color). This function
sets both the RGB blend equation and the alpha blend equation to a single equation.
gl:blendEquationi specifies the blend equation for a single draw buffer whereas
gl:blendEquation sets the blend equation for all draw buffers.
See external documentation.
drawRangeElements(Mode, Start, End, Count, Type, Indices) -> ok
Types:
Mode = enum()
Start = integer()
End = integer()
Count = integer()
Type = enum()
Indices = offset() | mem()
Render primitives from array data
gl:drawRangeElements is a restricted form of gl:drawElements/4 . Mode , Start , End
, and Count match the corresponding arguments to gl:drawElements/4 , with the
additional constraint that all values in the arrays Count must lie between Start
and End , inclusive.
See external documentation.
texImage3D(Target, Level, InternalFormat, Width, Height, Depth, Border, Format, Type,
Pixels) -> ok
Types:
Target = enum()
Level = integer()
InternalFormat = integer()
Width = integer()
Height = integer()
Depth = integer()
Border = integer()
Format = enum()
Type = enum()
Pixels = offset() | mem()
Specify a three-dimensional texture image
Texturing maps a portion of a specified texture image onto each graphical primitive
for which texturing is enabled. To enable and disable three-dimensional texturing,
call gl:enable/1 and gl:enable/1 with argument ?GL_TEXTURE_3D.
See external documentation.
texSubImage3D(Target, Level, Xoffset, Yoffset, Zoffset, Width, Height, Depth, Format,
Type, Pixels) -> ok
Types:
Target = enum()
Level = integer()
Xoffset = integer()
Yoffset = integer()
Zoffset = integer()
Width = integer()
Height = integer()
Depth = integer()
Format = enum()
Type = enum()
Pixels = offset() | mem()
glTexSubImage
See external documentation.
copyTexSubImage3D(Target, Level, Xoffset, Yoffset, Zoffset, X, Y, Width, Height) -> ok
Types:
Target = enum()
Level = integer()
Xoffset = integer()
Yoffset = integer()
Zoffset = integer()
X = integer()
Y = integer()
Width = integer()
Height = integer()
Copy a three-dimensional texture subimage
gl:copyTexSubImage3D replaces a rectangular portion of a three-dimensional texture
image with pixels from the current ?GL_READ_BUFFER (rather than from main memory,
as is the case for gl:texSubImage1D/7 ).
See external documentation.
colorTable(Target, Internalformat, Width, Format, Type, Table) -> ok
Types:
Target = enum()
Internalformat = enum()
Width = integer()
Format = enum()
Type = enum()
Table = offset() | mem()
Define a color lookup table
gl:colorTable may be used in two ways: to test the actual size and color resolution
of a lookup table given a particular set of parameters, or to load the contents of
a color lookup table. Use the targets ?GL_PROXY_* for the first case and the other
targets for the second case.
See external documentation.
colorTableParameterfv(Target, Pname, Params) -> ok
Types:
Target = enum()
Pname = enum()
Params = {float(), float(), float(), float()}
Set color lookup table parameters
gl:colorTableParameter is used to specify the scale factors and bias terms applied
to color components when they are loaded into a color table. Target indicates which
color table the scale and bias terms apply to; it must be set to ?GL_COLOR_TABLE,
?GL_POST_CONVOLUTION_COLOR_TABLE , or ?GL_POST_COLOR_MATRIX_COLOR_TABLE.
See external documentation.
colorTableParameteriv(Target, Pname, Params) -> ok
Types:
Target = enum()
Pname = enum()
Params = {integer(), integer(), integer(), integer()}
See colorTableParameterfv/3
copyColorTable(Target, Internalformat, X, Y, Width) -> ok
Types:
Target = enum()
Internalformat = enum()
X = integer()
Y = integer()
Width = integer()
Copy pixels into a color table
gl:copyColorTable loads a color table with pixels from the current ?GL_READ_BUFFER
(rather than from main memory, as is the case for gl:colorTable/6 ).
See external documentation.
getColorTable(Target, Format, Type, Table) -> ok
Types:
Target = enum()
Format = enum()
Type = enum()
Table = mem()
Retrieve contents of a color lookup table
gl:getColorTable returns in Table the contents of the color table specified by
Target . No pixel transfer operations are performed, but pixel storage modes that
are applicable to gl:readPixels/7 are performed.
See external documentation.
getColorTableParameterfv(Target, Pname) -> {float(), float(), float(), float()}
Types:
Target = enum()
Pname = enum()
Get color lookup table parameters
Returns parameters specific to color table Target .
See external documentation.
getColorTableParameteriv(Target, Pname) -> {integer(), integer(), integer(), integer()}
Types:
Target = enum()
Pname = enum()
See getColorTableParameterfv/2
colorSubTable(Target, Start, Count, Format, Type, Data) -> ok
Types:
Target = enum()
Start = integer()
Count = integer()
Format = enum()
Type = enum()
Data = offset() | mem()
Respecify a portion of a color table
gl:colorSubTable is used to respecify a contiguous portion of a color table
previously defined using gl:colorTable/6 . The pixels referenced by Data replace
the portion of the existing table from indices Start to start+count-1, inclusive.
This region may not include any entries outside the range of the color table as it
was originally specified. It is not an error to specify a subtexture with width of
0, but such a specification has no effect.
See external documentation.
copyColorSubTable(Target, Start, X, Y, Width) -> ok
Types:
Target = enum()
Start = integer()
X = integer()
Y = integer()
Width = integer()
Respecify a portion of a color table
gl:copyColorSubTable is used to respecify a contiguous portion of a color table
previously defined using gl:colorTable/6 . The pixels copied from the framebuffer
replace the portion of the existing table from indices Start to start+x-1,
inclusive. This region may not include any entries outside the range of the color
table, as was originally specified. It is not an error to specify a subtexture with
width of 0, but such a specification has no effect.
See external documentation.
convolutionFilter1D(Target, Internalformat, Width, Format, Type, Image) -> ok
Types:
Target = enum()
Internalformat = enum()
Width = integer()
Format = enum()
Type = enum()
Image = offset() | mem()
Define a one-dimensional convolution filter
gl:convolutionFilter1D builds a one-dimensional convolution filter kernel from an
array of pixels.
See external documentation.
convolutionFilter2D(Target, Internalformat, Width, Height, Format, Type, Image) -> ok
Types:
Target = enum()
Internalformat = enum()
Width = integer()
Height = integer()
Format = enum()
Type = enum()
Image = offset() | mem()
Define a two-dimensional convolution filter
gl:convolutionFilter2D builds a two-dimensional convolution filter kernel from an
array of pixels.
See external documentation.
convolutionParameterf(Target, Pname, Params) -> ok
Types:
Target = enum()
Pname = enum()
Params = tuple()
Set convolution parameters
gl:convolutionParameter sets the value of a convolution parameter.
See external documentation.
convolutionParameterfv(Target::enum(), Pname::enum(), Params) -> ok
Types:
Params = {Params::tuple()}
Equivalent to convolutionParameterf(Target, Pname, Params).
convolutionParameteri(Target, Pname, Params) -> ok
Types:
Target = enum()
Pname = enum()
Params = tuple()
See convolutionParameterf/3
convolutionParameteriv(Target::enum(), Pname::enum(), Params) -> ok
Types:
Params = {Params::tuple()}
Equivalent to convolutionParameteri(Target, Pname, Params).
copyConvolutionFilter1D(Target, Internalformat, X, Y, Width) -> ok
Types:
Target = enum()
Internalformat = enum()
X = integer()
Y = integer()
Width = integer()
Copy pixels into a one-dimensional convolution filter
gl:copyConvolutionFilter1D defines a one-dimensional convolution filter kernel with
pixels from the current ?GL_READ_BUFFER (rather than from main memory, as is the
case for gl:convolutionFilter1D/6 ).
See external documentation.
copyConvolutionFilter2D(Target, Internalformat, X, Y, Width, Height) -> ok
Types:
Target = enum()
Internalformat = enum()
X = integer()
Y = integer()
Width = integer()
Height = integer()
Copy pixels into a two-dimensional convolution filter
gl:copyConvolutionFilter2D defines a two-dimensional convolution filter kernel with
pixels from the current ?GL_READ_BUFFER (rather than from main memory, as is the
case for gl:convolutionFilter2D/7 ).
See external documentation.
getConvolutionFilter(Target, Format, Type, Image) -> ok
Types:
Target = enum()
Format = enum()
Type = enum()
Image = mem()
Get current 1D or 2D convolution filter kernel
gl:getConvolutionFilter returns the current 1D or 2D convolution filter kernel as
an image. The one- or two-dimensional image is placed in Image according to the
specifications in Format and Type . No pixel transfer operations are performed on
this image, but the relevant pixel storage modes are applied.
See external documentation.
getConvolutionParameterfv(Target, Pname) -> {float(), float(), float(), float()}
Types:
Target = enum()
Pname = enum()
Get convolution parameters
gl:getConvolutionParameter retrieves convolution parameters. Target determines
which convolution filter is queried. Pname determines which parameter is returned:
See external documentation.
getConvolutionParameteriv(Target, Pname) -> {integer(), integer(), integer(), integer()}
Types:
Target = enum()
Pname = enum()
See getConvolutionParameterfv/2
separableFilter2D(Target, Internalformat, Width, Height, Format, Type, Row, Column) -> ok
Types:
Target = enum()
Internalformat = enum()
Width = integer()
Height = integer()
Format = enum()
Type = enum()
Row = offset() | mem()
Column = offset() | mem()
Define a separable two-dimensional convolution filter
gl:separableFilter2D builds a two-dimensional separable convolution filter kernel
from two arrays of pixels.
See external documentation.
getHistogram(Target, Reset, Format, Type, Values) -> ok
Types:
Target = enum()
Reset = 0 | 1
Format = enum()
Type = enum()
Values = mem()
Get histogram table
gl:getHistogram returns the current histogram table as a one-dimensional image with
the same width as the histogram. No pixel transfer operations are performed on this
image, but pixel storage modes that are applicable to 1D images are honored.
See external documentation.
getHistogramParameterfv(Target, Pname) -> {float()}
Types:
Target = enum()
Pname = enum()
Get histogram parameters
gl:getHistogramParameter is used to query parameter values for the current
histogram or for a proxy. The histogram state information may be queried by calling
gl:getHistogramParameter with a Target of ?GL_HISTOGRAM (to obtain information for
the current histogram table) or ?GL_PROXY_HISTOGRAM (to obtain information from the
most recent proxy request) and one of the following values for the Pname argument:
See external documentation.
getHistogramParameteriv(Target, Pname) -> {integer()}
Types:
Target = enum()
Pname = enum()
See getHistogramParameterfv/2
getMinmax(Target, Reset, Format, Types, Values) -> ok
Types:
Target = enum()
Reset = 0 | 1
Format = enum()
Types = enum()
Values = mem()
Get minimum and maximum pixel values
gl:getMinmax returns the accumulated minimum and maximum pixel values (computed on
a per-component basis) in a one-dimensional image of width 2. The first set of
return values are the minima, and the second set of return values are the maxima.
The format of the return values is determined by Format , and their type is
determined by Types .
See external documentation.
getMinmaxParameterfv(Target, Pname) -> {float()}
Types:
Target = enum()
Pname = enum()
Get minmax parameters
gl:getMinmaxParameter retrieves parameters for the current minmax table by setting
Pname to one of the following values:
See external documentation.
getMinmaxParameteriv(Target, Pname) -> {integer()}
Types:
Target = enum()
Pname = enum()
See getMinmaxParameterfv/2
histogram(Target, Width, Internalformat, Sink) -> ok
Types:
Target = enum()
Width = integer()
Internalformat = enum()
Sink = 0 | 1
Define histogram table
When ?GL_HISTOGRAM is enabled, RGBA color components are converted to histogram
table indices by clamping to the range [0,1], multiplying by the width of the
histogram table, and rounding to the nearest integer. The table entries selected by
the RGBA indices are then incremented. (If the internal format of the histogram
table includes luminance, then the index derived from the R color component
determines the luminance table entry to be incremented.) If a histogram table entry
is incremented beyond its maximum value, then its value becomes undefined. (This is
not an error.)
See external documentation.
minmax(Target, Internalformat, Sink) -> ok
Types:
Target = enum()
Internalformat = enum()
Sink = 0 | 1
Define minmax table
When ?GL_MINMAX is enabled, the RGBA components of incoming pixels are compared to
the minimum and maximum values for each component, which are stored in the two-
element minmax table. (The first element stores the minima, and the second element
stores the maxima.) If a pixel component is greater than the corresponding
component in the maximum element, then the maximum element is updated with the
pixel component value. If a pixel component is less than the corresponding
component in the minimum element, then the minimum element is updated with the
pixel component value. (In both cases, if the internal format of the minmax table
includes luminance, then the R color component of incoming pixels is used for
comparison.) The contents of the minmax table may be retrieved at a later time by
calling gl:getMinmax/5 . The minmax operation is enabled or disabled by calling
gl:enable/1 or gl:enable/1 , respectively, with an argument of ?GL_MINMAX .
See external documentation.
resetHistogram(Target) -> ok
Types:
Target = enum()
Reset histogram table entries to zero
gl:resetHistogram resets all the elements of the current histogram table to zero.
See external documentation.
resetMinmax(Target) -> ok
Types:
Target = enum()
Reset minmax table entries to initial values
gl:resetMinmax resets the elements of the current minmax table to their initial
values: the maximum element receives the minimum possible component values, and the
minimum element receives the maximum possible component values.
See external documentation.
activeTexture(Texture) -> ok
Types:
Texture = enum()
Select active texture unit
gl:activeTexture selects which texture unit subsequent texture state calls will
affect. The number of texture units an implementation supports is implementation
dependent, but must be at least 80.
See external documentation.
sampleCoverage(Value, Invert) -> ok
Types:
Value = clamp()
Invert = 0 | 1
Specify multisample coverage parameters
Multisampling samples a pixel multiple times at various implementation-dependent
subpixel locations to generate antialiasing effects. Multisampling transparently
antialiases points, lines, polygons, and images if it is enabled.
See external documentation.
compressedTexImage3D(Target, Level, Internalformat, Width, Height, Depth, Border,
ImageSize, Data) -> ok
Types:
Target = enum()
Level = integer()
Internalformat = enum()
Width = integer()
Height = integer()
Depth = integer()
Border = integer()
ImageSize = integer()
Data = offset() | mem()
Specify a three-dimensional texture image in a compressed format
Texturing allows elements of an image array to be read by shaders.
See external documentation.
compressedTexImage2D(Target, Level, Internalformat, Width, Height, Border, ImageSize,
Data) -> ok
Types:
Target = enum()
Level = integer()
Internalformat = enum()
Width = integer()
Height = integer()
Border = integer()
ImageSize = integer()
Data = offset() | mem()
Specify a two-dimensional texture image in a compressed format
Texturing allows elements of an image array to be read by shaders.
See external documentation.
compressedTexImage1D(Target, Level, Internalformat, Width, Border, ImageSize, Data) -> ok
Types:
Target = enum()
Level = integer()
Internalformat = enum()
Width = integer()
Border = integer()
ImageSize = integer()
Data = offset() | mem()
Specify a one-dimensional texture image in a compressed format
Texturing allows elements of an image array to be read by shaders.
See external documentation.
compressedTexSubImage3D(Target, Level, Xoffset, Yoffset, Zoffset, Width, Height, Depth,
Format, ImageSize, Data) -> ok
Types:
Target = enum()
Level = integer()
Xoffset = integer()
Yoffset = integer()
Zoffset = integer()
Width = integer()
Height = integer()
Depth = integer()
Format = enum()
ImageSize = integer()
Data = offset() | mem()
Specify a three-dimensional texture subimage in a compressed format
Texturing allows elements of an image array to be read by shaders.
See external documentation.
compressedTexSubImage2D(Target, Level, Xoffset, Yoffset, Width, Height, Format, ImageSize,
Data) -> ok
Types:
Target = enum()
Level = integer()
Xoffset = integer()
Yoffset = integer()
Width = integer()
Height = integer()
Format = enum()
ImageSize = integer()
Data = offset() | mem()
Specify a two-dimensional texture subimage in a compressed format
Texturing allows elements of an image array to be read by shaders.
See external documentation.
compressedTexSubImage1D(Target, Level, Xoffset, Width, Format, ImageSize, Data) -> ok
Types:
Target = enum()
Level = integer()
Xoffset = integer()
Width = integer()
Format = enum()
ImageSize = integer()
Data = offset() | mem()
Specify a one-dimensional texture subimage in a compressed format
Texturing allows elements of an image array to be read by shaders.
See external documentation.
getCompressedTexImage(Target, Lod, Img) -> ok
Types:
Target = enum()
Lod = integer()
Img = mem()
Return a compressed texture image
gl:getCompressedTexImage returns the compressed texture image associated with
Target and Lod into Img . Img should be an array of
?GL_TEXTURE_COMPRESSED_IMAGE_SIZE bytes. Target specifies whether the desired
texture image was one specified by gl:texImage1D/8 (?GL_TEXTURE_1D),
gl:texImage2D/9 (?GL_TEXTURE_2D or any of ?GL_TEXTURE_CUBE_MAP_* ), or
gl:texImage3D/10 (?GL_TEXTURE_3D). Lod specifies the level-of-detail number of the
desired image.
See external documentation.
clientActiveTexture(Texture) -> ok
Types:
Texture = enum()
Select active texture unit
gl:clientActiveTexture selects the vertex array client state parameters to be
modified by gl:texCoordPointer/4 , and enabled or disabled with
gl:enableClientState/1 or gl:enableClientState/1 , respectively, when called with a
parameter of ?GL_TEXTURE_COORD_ARRAY .
See external documentation.
multiTexCoord1d(Target, S) -> ok
Types:
Target = enum()
S = float()
Set the current texture coordinates
gl:multiTexCoord specifies texture coordinates in one, two, three, or four
dimensions. gl:multiTexCoord1 sets the current texture coordinates to (s 0 0 1); a
call to gl:multiTexCoord2 sets them to (s t 0 1). Similarly, gl:multiTexCoord3
specifies the texture coordinates as (s t r 1), and gl:multiTexCoord4 defines all
four components explicitly as (s t r q).
See external documentation.
multiTexCoord1dv(Target::enum(), V) -> ok
Types:
V = {S::float()}
Equivalent to multiTexCoord1d(Target, S).
multiTexCoord1f(Target, S) -> ok
Types:
Target = enum()
S = float()
See multiTexCoord1d/2
multiTexCoord1fv(Target::enum(), V) -> ok
Types:
V = {S::float()}
Equivalent to multiTexCoord1f(Target, S).
multiTexCoord1i(Target, S) -> ok
Types:
Target = enum()
S = integer()
See multiTexCoord1d/2
multiTexCoord1iv(Target::enum(), V) -> ok
Types:
V = {S::integer()}
Equivalent to multiTexCoord1i(Target, S).
multiTexCoord1s(Target, S) -> ok
Types:
Target = enum()
S = integer()
See multiTexCoord1d/2
multiTexCoord1sv(Target::enum(), V) -> ok
Types:
V = {S::integer()}
Equivalent to multiTexCoord1s(Target, S).
multiTexCoord2d(Target, S, T) -> ok
Types:
Target = enum()
S = float()
T = float()
See multiTexCoord1d/2
multiTexCoord2dv(Target::enum(), V) -> ok
Types:
V = {S::float(), T::float()}
Equivalent to multiTexCoord2d(Target, S, T).
multiTexCoord2f(Target, S, T) -> ok
Types:
Target = enum()
S = float()
T = float()
See multiTexCoord1d/2
multiTexCoord2fv(Target::enum(), V) -> ok
Types:
V = {S::float(), T::float()}
Equivalent to multiTexCoord2f(Target, S, T).
multiTexCoord2i(Target, S, T) -> ok
Types:
Target = enum()
S = integer()
T = integer()
See multiTexCoord1d/2
multiTexCoord2iv(Target::enum(), V) -> ok
Types:
V = {S::integer(), T::integer()}
Equivalent to multiTexCoord2i(Target, S, T).
multiTexCoord2s(Target, S, T) -> ok
Types:
Target = enum()
S = integer()
T = integer()
See multiTexCoord1d/2
multiTexCoord2sv(Target::enum(), V) -> ok
Types:
V = {S::integer(), T::integer()}
Equivalent to multiTexCoord2s(Target, S, T).
multiTexCoord3d(Target, S, T, R) -> ok
Types:
Target = enum()
S = float()
T = float()
R = float()
See multiTexCoord1d/2
multiTexCoord3dv(Target::enum(), V) -> ok
Types:
V = {S::float(), T::float(), R::float()}
Equivalent to multiTexCoord3d(Target, S, T, R).
multiTexCoord3f(Target, S, T, R) -> ok
Types:
Target = enum()
S = float()
T = float()
R = float()
See multiTexCoord1d/2
multiTexCoord3fv(Target::enum(), V) -> ok
Types:
V = {S::float(), T::float(), R::float()}
Equivalent to multiTexCoord3f(Target, S, T, R).
multiTexCoord3i(Target, S, T, R) -> ok
Types:
Target = enum()
S = integer()
T = integer()
R = integer()
See multiTexCoord1d/2
multiTexCoord3iv(Target::enum(), V) -> ok
Types:
V = {S::integer(), T::integer(), R::integer()}
Equivalent to multiTexCoord3i(Target, S, T, R).
multiTexCoord3s(Target, S, T, R) -> ok
Types:
Target = enum()
S = integer()
T = integer()
R = integer()
See multiTexCoord1d/2
multiTexCoord3sv(Target::enum(), V) -> ok
Types:
V = {S::integer(), T::integer(), R::integer()}
Equivalent to multiTexCoord3s(Target, S, T, R).
multiTexCoord4d(Target, S, T, R, Q) -> ok
Types:
Target = enum()
S = float()
T = float()
R = float()
Q = float()
See multiTexCoord1d/2
multiTexCoord4dv(Target::enum(), V) -> ok
Types:
V = {S::float(), T::float(), R::float(), Q::float()}
Equivalent to multiTexCoord4d(Target, S, T, R, Q).
multiTexCoord4f(Target, S, T, R, Q) -> ok
Types:
Target = enum()
S = float()
T = float()
R = float()
Q = float()
See multiTexCoord1d/2
multiTexCoord4fv(Target::enum(), V) -> ok
Types:
V = {S::float(), T::float(), R::float(), Q::float()}
Equivalent to multiTexCoord4f(Target, S, T, R, Q).
multiTexCoord4i(Target, S, T, R, Q) -> ok
Types:
Target = enum()
S = integer()
T = integer()
R = integer()
Q = integer()
See multiTexCoord1d/2
multiTexCoord4iv(Target::enum(), V) -> ok
Types:
V = {S::integer(), T::integer(), R::integer(), Q::integer()}
Equivalent to multiTexCoord4i(Target, S, T, R, Q).
multiTexCoord4s(Target, S, T, R, Q) -> ok
Types:
Target = enum()
S = integer()
T = integer()
R = integer()
Q = integer()
See multiTexCoord1d/2
multiTexCoord4sv(Target::enum(), V) -> ok
Types:
V = {S::integer(), T::integer(), R::integer(), Q::integer()}
Equivalent to multiTexCoord4s(Target, S, T, R, Q).
loadTransposeMatrixf(M) -> ok
Types:
M = matrix()
Replace the current matrix with the specified row-major ordered matrix
gl:loadTransposeMatrix replaces the current matrix with the one whose elements are
specified by M . The current matrix is the projection matrix, modelview matrix, or
texture matrix, depending on the current matrix mode (see gl:matrixMode/1 ).
See external documentation.
loadTransposeMatrixd(M) -> ok
Types:
M = matrix()
See loadTransposeMatrixf/1
multTransposeMatrixf(M) -> ok
Types:
M = matrix()
Multiply the current matrix with the specified row-major ordered matrix
gl:multTransposeMatrix multiplies the current matrix with the one specified using M
, and replaces the current matrix with the product.
See external documentation.
multTransposeMatrixd(M) -> ok
Types:
M = matrix()
See multTransposeMatrixf/1
blendFuncSeparate(SfactorRGB, DfactorRGB, SfactorAlpha, DfactorAlpha) -> ok
Types:
SfactorRGB = enum()
DfactorRGB = enum()
SfactorAlpha = enum()
DfactorAlpha = enum()
Specify pixel arithmetic for RGB and alpha components separately
Pixels can be drawn using a function that blends the incoming (source) RGBA values
with the RGBA values that are already in the frame buffer (the destination values).
Blending is initially disabled. Use gl:enable/1 and gl:enable/1 with argument
?GL_BLEND to enable and disable blending.
See external documentation.
multiDrawArrays(Mode, First, Count) -> ok
Types:
Mode = enum()
First = [integer()] | mem()
Count = [integer()] | mem()
Render multiple sets of primitives from array data
gl:multiDrawArrays specifies multiple sets of geometric primitives with very few
subroutine calls. Instead of calling a GL procedure to pass each individual vertex,
normal, texture coordinate, edge flag, or color, you can prespecify separate arrays
of vertices, normals, and colors and use them to construct a sequence of primitives
with a single call to gl:multiDrawArrays.
See external documentation.
pointParameterf(Pname, Param) -> ok
Types:
Pname = enum()
Param = float()
Specify point parameters
The following values are accepted for Pname :
See external documentation.
pointParameterfv(Pname, Params) -> ok
Types:
Pname = enum()
Params = tuple()
See pointParameterf/2
pointParameteri(Pname, Param) -> ok
Types:
Pname = enum()
Param = integer()
See pointParameterf/2
pointParameteriv(Pname, Params) -> ok
Types:
Pname = enum()
Params = tuple()
See pointParameterf/2
fogCoordf(Coord) -> ok
Types:
Coord = float()
Set the current fog coordinates
gl:fogCoord specifies the fog coordinate that is associated with each vertex and
the current raster position. The value specified is interpolated and used in
computing the fog color (see gl:fogf/2 ).
See external documentation.
fogCoordfv(Coord) -> ok
Types:
Coord = {Coord::float()}
Equivalent to fogCoordf(Coord).
fogCoordd(Coord) -> ok
Types:
Coord = float()
See fogCoordf/1
fogCoorddv(Coord) -> ok
Types:
Coord = {Coord::float()}
Equivalent to fogCoordd(Coord).
fogCoordPointer(Type, Stride, Pointer) -> ok
Types:
Type = enum()
Stride = integer()
Pointer = offset() | mem()
Define an array of fog coordinates
gl:fogCoordPointer specifies the location and data format of an array of fog
coordinates to use when rendering. Type specifies the data type of each fog
coordinate, and Stride specifies the byte stride from one fog coordinate to the
next, allowing vertices and attributes to be packed into a single array or stored
in separate arrays.
See external documentation.
secondaryColor3b(Red, Green, Blue) -> ok
Types:
Red = integer()
Green = integer()
Blue = integer()
Set the current secondary color
The GL stores both a primary four-valued RGBA color and a secondary four-valued
RGBA color (where alpha is always set to 0.0) that is associated with every vertex.
See external documentation.
secondaryColor3bv(V) -> ok
Types:
V = {Red::integer(), Green::integer(), Blue::integer()}
Equivalent to secondaryColor3b(Red, Green, Blue).
secondaryColor3d(Red, Green, Blue) -> ok
Types:
Red = float()
Green = float()
Blue = float()
See secondaryColor3b/3
secondaryColor3dv(V) -> ok
Types:
V = {Red::float(), Green::float(), Blue::float()}
Equivalent to secondaryColor3d(Red, Green, Blue).
secondaryColor3f(Red, Green, Blue) -> ok
Types:
Red = float()
Green = float()
Blue = float()
See secondaryColor3b/3
secondaryColor3fv(V) -> ok
Types:
V = {Red::float(), Green::float(), Blue::float()}
Equivalent to secondaryColor3f(Red, Green, Blue).
secondaryColor3i(Red, Green, Blue) -> ok
Types:
Red = integer()
Green = integer()
Blue = integer()
See secondaryColor3b/3
secondaryColor3iv(V) -> ok
Types:
V = {Red::integer(), Green::integer(), Blue::integer()}
Equivalent to secondaryColor3i(Red, Green, Blue).
secondaryColor3s(Red, Green, Blue) -> ok
Types:
Red = integer()
Green = integer()
Blue = integer()
See secondaryColor3b/3
secondaryColor3sv(V) -> ok
Types:
V = {Red::integer(), Green::integer(), Blue::integer()}
Equivalent to secondaryColor3s(Red, Green, Blue).
secondaryColor3ub(Red, Green, Blue) -> ok
Types:
Red = integer()
Green = integer()
Blue = integer()
See secondaryColor3b/3
secondaryColor3ubv(V) -> ok
Types:
V = {Red::integer(), Green::integer(), Blue::integer()}
Equivalent to secondaryColor3ub(Red, Green, Blue).
secondaryColor3ui(Red, Green, Blue) -> ok
Types:
Red = integer()
Green = integer()
Blue = integer()
See secondaryColor3b/3
secondaryColor3uiv(V) -> ok
Types:
V = {Red::integer(), Green::integer(), Blue::integer()}
Equivalent to secondaryColor3ui(Red, Green, Blue).
secondaryColor3us(Red, Green, Blue) -> ok
Types:
Red = integer()
Green = integer()
Blue = integer()
See secondaryColor3b/3
secondaryColor3usv(V) -> ok
Types:
V = {Red::integer(), Green::integer(), Blue::integer()}
Equivalent to secondaryColor3us(Red, Green, Blue).
secondaryColorPointer(Size, Type, Stride, Pointer) -> ok
Types:
Size = integer()
Type = enum()
Stride = integer()
Pointer = offset() | mem()
Define an array of secondary colors
gl:secondaryColorPointer specifies the location and data format of an array of
color components to use when rendering. Size specifies the number of components per
color, and must be 3. Type specifies the data type of each color component, and
Stride specifies the byte stride from one color to the next, allowing vertices and
attributes to be packed into a single array or stored in separate arrays.
See external documentation.
windowPos2d(X, Y) -> ok
Types:
X = float()
Y = float()
Specify the raster position in window coordinates for pixel operations
The GL maintains a 3D position in window coordinates. This position, called the
raster position, is used to position pixel and bitmap write operations. It is
maintained with subpixel accuracy. See gl:bitmap/7 , gl:drawPixels/5 , and
gl:copyPixels/5 .
See external documentation.
windowPos2dv(V) -> ok
Types:
V = {X::float(), Y::float()}
Equivalent to windowPos2d(X, Y).
windowPos2f(X, Y) -> ok
Types:
X = float()
Y = float()
See windowPos2d/2
windowPos2fv(V) -> ok
Types:
V = {X::float(), Y::float()}
Equivalent to windowPos2f(X, Y).
windowPos2i(X, Y) -> ok
Types:
X = integer()
Y = integer()
See windowPos2d/2
windowPos2iv(V) -> ok
Types:
V = {X::integer(), Y::integer()}
Equivalent to windowPos2i(X, Y).
windowPos2s(X, Y) -> ok
Types:
X = integer()
Y = integer()
See windowPos2d/2
windowPos2sv(V) -> ok
Types:
V = {X::integer(), Y::integer()}
Equivalent to windowPos2s(X, Y).
windowPos3d(X, Y, Z) -> ok
Types:
X = float()
Y = float()
Z = float()
See windowPos2d/2
windowPos3dv(V) -> ok
Types:
V = {X::float(), Y::float(), Z::float()}
Equivalent to windowPos3d(X, Y, Z).
windowPos3f(X, Y, Z) -> ok
Types:
X = float()
Y = float()
Z = float()
See windowPos2d/2
windowPos3fv(V) -> ok
Types:
V = {X::float(), Y::float(), Z::float()}
Equivalent to windowPos3f(X, Y, Z).
windowPos3i(X, Y, Z) -> ok
Types:
X = integer()
Y = integer()
Z = integer()
See windowPos2d/2
windowPos3iv(V) -> ok
Types:
V = {X::integer(), Y::integer(), Z::integer()}
Equivalent to windowPos3i(X, Y, Z).
windowPos3s(X, Y, Z) -> ok
Types:
X = integer()
Y = integer()
Z = integer()
See windowPos2d/2
windowPos3sv(V) -> ok
Types:
V = {X::integer(), Y::integer(), Z::integer()}
Equivalent to windowPos3s(X, Y, Z).
genQueries(N) -> [integer()]
Types:
N = integer()
Generate query object names
gl:genQueries returns N query object names in Ids . There is no guarantee that the
names form a contiguous set of integers; however, it is guaranteed that none of the
returned names was in use immediately before the call to gl:genQueries.
See external documentation.
deleteQueries(Ids) -> ok
Types:
Ids = [integer()]
Delete named query objects
gl:deleteQueries deletes N query objects named by the elements of the array Ids .
After a query object is deleted, it has no contents, and its name is free for reuse
(for example by gl:genQueries/1 ).
See external documentation.
isQuery(Id) -> 0 | 1
Types:
Id = integer()
Determine if a name corresponds to a query object
gl:isQuery returns ?GL_TRUE if Id is currently the name of a query object. If Id is
zero, or is a non-zero value that is not currently the name of a query object, or
if an error occurs, gl:isQuery returns ?GL_FALSE.
See external documentation.
beginQuery(Target, Id) -> ok
Types:
Target = enum()
Id = integer()
Delimit the boundaries of a query object
gl:beginQuery and gl:beginQuery/2 delimit the boundaries of a query object. Query
must be a name previously returned from a call to gl:genQueries/1 . If a query
object with name Id does not yet exist it is created with the type determined by
Target . Target must be one of ?GL_SAMPLES_PASSED, ?GL_ANY_SAMPLES_PASSED,
?GL_PRIMITIVES_GENERATED , ?GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN, or
?GL_TIME_ELAPSED. The behavior of the query object depends on its type and is as
follows.
See external documentation.
endQuery(Target) -> ok
Types:
Target = enum()
See beginQuery/2
getQueryiv(Target, Pname) -> integer()
Types:
Target = enum()
Pname = enum()
glGetQuery
See external documentation.
getQueryObjectiv(Id, Pname) -> integer()
Types:
Id = integer()
Pname = enum()
Return parameters of a query object
gl:getQueryObject returns in Params a selected parameter of the query object
specified by Id .
See external documentation.
getQueryObjectuiv(Id, Pname) -> integer()
Types:
Id = integer()
Pname = enum()
See getQueryObjectiv/2
bindBuffer(Target, Buffer) -> ok
Types:
Target = enum()
Buffer = integer()
Bind a named buffer object
gl:bindBuffer binds a buffer object to the specified buffer binding point. Calling
gl:bindBuffer with Target set to one of the accepted symbolic constants and Buffer
set to the name of a buffer object binds that buffer object name to the target. If
no buffer object with name Buffer exists, one is created with that name. When a
buffer object is bound to a target, the previous binding for that target is
automatically broken.
See external documentation.
deleteBuffers(Buffers) -> ok
Types:
Buffers = [integer()]
Delete named buffer objects
gl:deleteBuffers deletes N buffer objects named by the elements of the array
Buffers . After a buffer object is deleted, it has no contents, and its name is
free for reuse (for example by gl:genBuffers/1 ). If a buffer object that is
currently bound is deleted, the binding reverts to 0 (the absence of any buffer
object).
See external documentation.
genBuffers(N) -> [integer()]
Types:
N = integer()
Generate buffer object names
gl:genBuffers returns N buffer object names in Buffers . There is no guarantee that
the names form a contiguous set of integers; however, it is guaranteed that none of
the returned names was in use immediately before the call to gl:genBuffers .
See external documentation.
isBuffer(Buffer) -> 0 | 1
Types:
Buffer = integer()
Determine if a name corresponds to a buffer object
gl:isBuffer returns ?GL_TRUE if Buffer is currently the name of a buffer object. If
Buffer is zero, or is a non-zero value that is not currently the name of a buffer
object, or if an error occurs, gl:isBuffer returns ?GL_FALSE .
See external documentation.
bufferData(Target, Size, Data, Usage) -> ok
Types:
Target = enum()
Size = integer()
Data = offset() | mem()
Usage = enum()
Creates and initializes a buffer object's data store
gl:bufferData creates a new data store for the buffer object currently bound to
Target . Any pre-existing data store is deleted. The new data store is created with
the specified Size in bytes and Usage . If Data is not ?NULL, the data store is
initialized with data from this pointer. In its initial state, the new data store
is not mapped, it has a ?NULL mapped pointer, and its mapped access is
?GL_READ_WRITE .
See external documentation.
bufferSubData(Target, Offset, Size, Data) -> ok
Types:
Target = enum()
Offset = integer()
Size = integer()
Data = offset() | mem()
Updates a subset of a buffer object's data store
gl:bufferSubData redefines some or all of the data store for the buffer object
currently bound to Target . Data starting at byte offset Offset and extending for
Size bytes is copied to the data store from the memory pointed to by Data . An
error is thrown if Offset and Size together define a range beyond the bounds of the
buffer object's data store.
See external documentation.
getBufferSubData(Target, Offset, Size, Data) -> ok
Types:
Target = enum()
Offset = integer()
Size = integer()
Data = mem()
Returns a subset of a buffer object's data store
gl:getBufferSubData returns some or all of the data from the buffer object
currently bound to Target . Data starting at byte offset Offset and extending for
Size bytes is copied from the data store to the memory pointed to by Data . An
error is thrown if the buffer object is currently mapped, or if Offset and Size
together define a range beyond the bounds of the buffer object's data store.
See external documentation.
getBufferParameteriv(Target, Pname) -> integer()
Types:
Target = enum()
Pname = enum()
Return parameters of a buffer object
gl:getBufferParameteriv returns in Data a selected parameter of the buffer object
specified by Target .
See external documentation.
blendEquationSeparate(ModeRGB, ModeAlpha) -> ok
Types:
ModeRGB = enum()
ModeAlpha = enum()
Set the RGB blend equation and the alpha blend equation separately
The blend equations determines how a new pixel (the ''source'' color) is combined
with a pixel already in the framebuffer (the ''destination'' color). These
functions specifie one blend equation for the RGB-color components and one blend
equation for the alpha component. gl:blendEquationSeparatei specifies the blend
equations for a single draw buffer whereas gl:blendEquationSeparate sets the blend
equations for all draw buffers.
See external documentation.
drawBuffers(Bufs) -> ok
Types:
Bufs = [enum()]
Specifies a list of color buffers to be drawn into
gl:drawBuffers defines an array of buffers into which outputs from the fragment
shader data will be written. If a fragment shader writes a value to one or more
user defined output variables, then the value of each variable will be written into
the buffer specified at a location within Bufs corresponding to the location
assigned to that user defined output. The draw buffer used for user defined outputs
assigned to locations greater than or equal to N is implicitly set to ?GL_NONE and
any data written to such an output is discarded.
See external documentation.
stencilOpSeparate(Face, Sfail, Dpfail, Dppass) -> ok
Types:
Face = enum()
Sfail = enum()
Dpfail = enum()
Dppass = enum()
Set front and/or back stencil test actions
Stenciling, like depth-buffering, enables and disables drawing on a per-pixel
basis. You draw into the stencil planes using GL drawing primitives, then render
geometry and images, using the stencil planes to mask out portions of the screen.
Stenciling is typically used in multipass rendering algorithms to achieve special
effects, such as decals, outlining, and constructive solid geometry rendering.
See external documentation.
stencilFuncSeparate(Face, Func, Ref, Mask) -> ok
Types:
Face = enum()
Func = enum()
Ref = integer()
Mask = integer()
Set front and/or back function and reference value for stencil testing
Stenciling, like depth-buffering, enables and disables drawing on a per-pixel
basis. You draw into the stencil planes using GL drawing primitives, then render
geometry and images, using the stencil planes to mask out portions of the screen.
Stenciling is typically used in multipass rendering algorithms to achieve special
effects, such as decals, outlining, and constructive solid geometry rendering.
See external documentation.
stencilMaskSeparate(Face, Mask) -> ok
Types:
Face = enum()
Mask = integer()
Control the front and/or back writing of individual bits in the stencil planes
gl:stencilMaskSeparate controls the writing of individual bits in the stencil
planes. The least significant n bits of Mask , where n is the number of bits in the
stencil buffer, specify a mask. Where a 1 appears in the mask, it's possible to
write to the corresponding bit in the stencil buffer. Where a 0 appears, the
corresponding bit is write-protected. Initially, all bits are enabled for writing.
See external documentation.
attachShader(Program, Shader) -> ok
Types:
Program = integer()
Shader = integer()
Attaches a shader object to a program object
In order to create a complete shader program, there must be a way to specify the
list of things that will be linked together. Program objects provide this
mechanism. Shaders that are to be linked together in a program object must first be
attached to that program object. gl:attachShader attaches the shader object
specified by Shader to the program object specified by Program . This indicates
that Shader will be included in link operations that will be performed on Program .
See external documentation.
bindAttribLocation(Program, Index, Name) -> ok
Types:
Program = integer()
Index = integer()
Name = string()
Associates a generic vertex attribute index with a named attribute variable
gl:bindAttribLocation is used to associate a user-defined attribute variable in the
program object specified by Program with a generic vertex attribute index. The name
of the user-defined attribute variable is passed as a null terminated string in
Name . The generic vertex attribute index to be bound to this variable is specified
by Index . When Program is made part of current state, values provided via the
generic vertex attribute Index will modify the value of the user-defined attribute
variable specified by Name .
See external documentation.
compileShader(Shader) -> ok
Types:
Shader = integer()
Compiles a shader object
gl:compileShader compiles the source code strings that have been stored in the
shader object specified by Shader .
See external documentation.
createProgram() -> integer()
Creates a program object
gl:createProgram creates an empty program object and returns a non-zero value by
which it can be referenced. A program object is an object to which shader objects
can be attached. This provides a mechanism to specify the shader objects that will
be linked to create a program. It also provides a means for checking the
compatibility of the shaders that will be used to create a program (for instance,
checking the compatibility between a vertex shader and a fragment shader). When no
longer needed as part of a program object, shader objects can be detached.
See external documentation.
createShader(Type) -> integer()
Types:
Type = enum()
Creates a shader object
gl:createShader creates an empty shader object and returns a non-zero value by
which it can be referenced. A shader object is used to maintain the source code
strings that define a shader. ShaderType indicates the type of shader to be
created. Five types of shader are supported. A shader of type ?GL_VERTEX_SHADER is
a shader that is intended to run on the programmable vertex processor. A shader of
type ?GL_TESS_CONTROL_SHADER is a shader that is intended to run on the
programmable tessellation processor in the control stage. A shader of type
?GL_TESS_EVALUATION_SHADER is a shader that is intended to run on the programmable
tessellation processor in the evaluation stage. A shader of type
?GL_GEOMETRY_SHADER is a shader that is intended to run on the programmable
geometry processor. A shader of type ?GL_FRAGMENT_SHADER is a shader that is
intended to run on the programmable fragment processor.
See external documentation.
deleteProgram(Program) -> ok
Types:
Program = integer()
Deletes a program object
gl:deleteProgram frees the memory and invalidates the name associated with the
program object specified by Program. This command effectively undoes the effects of
a call to gl:createProgram/0 .
See external documentation.
deleteShader(Shader) -> ok
Types:
Shader = integer()
Deletes a shader object
gl:deleteShader frees the memory and invalidates the name associated with the
shader object specified by Shader . This command effectively undoes the effects of
a call to gl:createShader/1 .
See external documentation.
detachShader(Program, Shader) -> ok
Types:
Program = integer()
Shader = integer()
Detaches a shader object from a program object to which it is attached
gl:detachShader detaches the shader object specified by Shader from the program
object specified by Program . This command can be used to undo the effect of the
command gl:attachShader/2 .
See external documentation.
disableVertexAttribArray(Index) -> ok
Types:
Index = integer()
Enable or disable a generic vertex attribute array
gl:enableVertexAttribArray enables the generic vertex attribute array specified by
Index . gl:disableVertexAttribArray disables the generic vertex attribute array
specified by Index . By default, all client-side capabilities are disabled,
including all generic vertex attribute arrays. If enabled, the values in the
generic vertex attribute array will be accessed and used for rendering when calls
are made to vertex array commands such as gl:drawArrays/3 , gl:drawElements/4 ,
gl:drawRangeElements/6 , see glMultiDrawElements , or gl:multiDrawArrays/3 .
See external documentation.
enableVertexAttribArray(Index) -> ok
Types:
Index = integer()
See disableVertexAttribArray/1
getActiveAttrib(Program, Index, BufSize) -> {Size::integer(), Type::enum(),
Name::string()}
Types:
Program = integer()
Index = integer()
BufSize = integer()
Returns information about an active attribute variable for the specified program
object
gl:getActiveAttrib returns information about an active attribute variable in the
program object specified by Program . The number of active attributes can be
obtained by calling gl:getProgramiv/2 with the value ?GL_ACTIVE_ATTRIBUTES. A value
of 0 for Index selects the first active attribute variable. Permissible values for
Index range from 0 to the number of active attribute variables minus 1.
See external documentation.
getActiveUniform(Program, Index, BufSize) -> {Size::integer(), Type::enum(),
Name::string()}
Types:
Program = integer()
Index = integer()
BufSize = integer()
Returns information about an active uniform variable for the specified program
object
gl:getActiveUniform returns information about an active uniform variable in the
program object specified by Program . The number of active uniform variables can be
obtained by calling gl:getProgramiv/2 with the value ?GL_ACTIVE_UNIFORMS. A value
of 0 for Index selects the first active uniform variable. Permissible values for
Index range from 0 to the number of active uniform variables minus 1.
See external documentation.
getAttachedShaders(Program, MaxCount) -> [integer()]
Types:
Program = integer()
MaxCount = integer()
Returns the handles of the shader objects attached to a program object
gl:getAttachedShaders returns the names of the shader objects attached to Program .
The names of shader objects that are attached to Program will be returned in
Shaders. The actual number of shader names written into Shaders is returned in
Count. If no shader objects are attached to Program , Count is set to 0. The
maximum number of shader names that may be returned in Shaders is specified by
MaxCount .
See external documentation.
getAttribLocation(Program, Name) -> integer()
Types:
Program = integer()
Name = string()
Returns the location of an attribute variable
gl:getAttribLocation queries the previously linked program object specified by
Program for the attribute variable specified by Name and returns the index of the
generic vertex attribute that is bound to that attribute variable. If Name is a
matrix attribute variable, the index of the first column of the matrix is returned.
If the named attribute variable is not an active attribute in the specified program
object or if Name starts with the reserved prefix "gl_", a value of -1 is returned.
See external documentation.
getProgramiv(Program, Pname) -> integer()
Types:
Program = integer()
Pname = enum()
Returns a parameter from a program object
gl:getProgram returns in Params the value of a parameter for a specific program
object. The following parameters are defined:
See external documentation.
getProgramInfoLog(Program, BufSize) -> string()
Types:
Program = integer()
BufSize = integer()
Returns the information log for a program object
gl:getProgramInfoLog returns the information log for the specified program object.
The information log for a program object is modified when the program object is
linked or validated. The string that is returned will be null terminated.
See external documentation.
getShaderiv(Shader, Pname) -> integer()
Types:
Shader = integer()
Pname = enum()
Returns a parameter from a shader object
gl:getShader returns in Params the value of a parameter for a specific shader
object. The following parameters are defined:
See external documentation.
getShaderInfoLog(Shader, BufSize) -> string()
Types:
Shader = integer()
BufSize = integer()
Returns the information log for a shader object
gl:getShaderInfoLog returns the information log for the specified shader object.
The information log for a shader object is modified when the shader is compiled.
The string that is returned will be null terminated.
See external documentation.
getShaderSource(Shader, BufSize) -> string()
Types:
Shader = integer()
BufSize = integer()
Returns the source code string from a shader object
gl:getShaderSource returns the concatenation of the source code strings from the
shader object specified by Shader . The source code strings for a shader object are
the result of a previous call to gl:shaderSource/2 . The string returned by the
function will be null terminated.
See external documentation.
getUniformLocation(Program, Name) -> integer()
Types:
Program = integer()
Name = string()
Returns the location of a uniform variable
gl:getUniformLocation returns an integer that represents the location of a specific
uniform variable within a program object. Name must be a null terminated string
that contains no white space. Name must be an active uniform variable name in
Program that is not a structure, an array of structures, or a subcomponent of a
vector or a matrix. This function returns -1 if Name does not correspond to an
active uniform variable in Program , if Name starts with the reserved prefix "gl_",
or if Name is associated with an atomic counter or a named uniform block.
See external documentation.
getUniformfv(Program, Location) -> matrix()
Types:
Program = integer()
Location = integer()
Returns the value of a uniform variable
gl:getUniform returns in Params the value(s) of the specified uniform variable. The
type of the uniform variable specified by Location determines the number of values
returned. If the uniform variable is defined in the shader as a boolean, int, or
float, a single value will be returned. If it is defined as a vec2, ivec2, or
bvec2, two values will be returned. If it is defined as a vec3, ivec3, or bvec3,
three values will be returned, and so on. To query values stored in uniform
variables declared as arrays, call gl:getUniform for each element of the array. To
query values stored in uniform variables declared as structures, call gl:getUniform
for each field in the structure. The values for uniform variables declared as a
matrix will be returned in column major order.
See external documentation.
getUniformiv(Program, Location) -> {integer(), integer(), integer(), integer(), integer(),
integer(), integer(), integer(), integer(), integer(), integer(), integer(), integer(),
integer(), integer(), integer()}
Types:
Program = integer()
Location = integer()
See getUniformfv/2
getVertexAttribdv(Index, Pname) -> {float(), float(), float(), float()}
Types:
Index = integer()
Pname = enum()
Return a generic vertex attribute parameter
gl:getVertexAttrib returns in Params the value of a generic vertex attribute
parameter. The generic vertex attribute to be queried is specified by Index , and
the parameter to be queried is specified by Pname .
See external documentation.
getVertexAttribfv(Index, Pname) -> {float(), float(), float(), float()}
Types:
Index = integer()
Pname = enum()
See getVertexAttribdv/2
getVertexAttribiv(Index, Pname) -> {integer(), integer(), integer(), integer()}
Types:
Index = integer()
Pname = enum()
See getVertexAttribdv/2
isProgram(Program) -> 0 | 1
Types:
Program = integer()
Determines if a name corresponds to a program object
gl:isProgram returns ?GL_TRUE if Program is the name of a program object previously
created with gl:createProgram/0 and not yet deleted with gl:deleteProgram/1 . If
Program is zero or a non-zero value that is not the name of a program object, or if
an error occurs, gl:isProgram returns ?GL_FALSE.
See external documentation.
isShader(Shader) -> 0 | 1
Types:
Shader = integer()
Determines if a name corresponds to a shader object
gl:isShader returns ?GL_TRUE if Shader is the name of a shader object previously
created with gl:createShader/1 and not yet deleted with gl:deleteShader/1 . If
Shader is zero or a non-zero value that is not the name of a shader object, or if
an error occurs, gl:isShader returns ?GL_FALSE.
See external documentation.
linkProgram(Program) -> ok
Types:
Program = integer()
Links a program object
gl:linkProgram links the program object specified by Program . If any shader
objects of type ?GL_VERTEX_SHADER are attached to Program , they will be used to
create an executable that will run on the programmable vertex processor. If any
shader objects of type ?GL_GEOMETRY_SHADER are attached to Program , they will be
used to create an executable that will run on the programmable geometry processor.
If any shader objects of type ?GL_FRAGMENT_SHADER are attached to Program , they
will be used to create an executable that will run on the programmable fragment
processor.
See external documentation.
shaderSource(Shader, String) -> ok
Types:
Shader = integer()
String = iolist()
Replaces the source code in a shader object
gl:shaderSource sets the source code in Shader to the source code in the array of
strings specified by String . Any source code previously stored in the shader
object is completely replaced. The number of strings in the array is specified by
Count . If Length is ?NULL, each string is assumed to be null terminated. If Length
is a value other than ?NULL, it points to an array containing a string length for
each of the corresponding elements of String . Each element in the Length array may
contain the length of the corresponding string (the null character is not counted
as part of the string length) or a value less than 0 to indicate that the string is
null terminated. The source code strings are not scanned or parsed at this time;
they are simply copied into the specified shader object.
See external documentation.
useProgram(Program) -> ok
Types:
Program = integer()
Installs a program object as part of current rendering state
gl:useProgram installs the program object specified by Program as part of current
rendering state. One or more executables are created in a program object by
successfully attaching shader objects to it with gl:attachShader/2 , successfully
compiling the shader objects with gl:compileShader/1 , and successfully linking the
program object with gl:linkProgram/1 .
See external documentation.
uniform1f(Location, V0) -> ok
Types:
Location = integer()
V0 = float()
Specify the value of a uniform variable for the current program object
gl:uniform modifies the value of a uniform variable or a uniform variable array.
The location of the uniform variable to be modified is specified by Location ,
which should be a value returned by gl:getUniformLocation/2 . gl:uniform operates
on the program object that was made part of current state by calling
gl:useProgram/1 .
See external documentation.
uniform2f(Location, V0, V1) -> ok
Types:
Location = integer()
V0 = float()
V1 = float()
See uniform1f/2
uniform3f(Location, V0, V1, V2) -> ok
Types:
Location = integer()
V0 = float()
V1 = float()
V2 = float()
See uniform1f/2
uniform4f(Location, V0, V1, V2, V3) -> ok
Types:
Location = integer()
V0 = float()
V1 = float()
V2 = float()
V3 = float()
See uniform1f/2
uniform1i(Location, V0) -> ok
Types:
Location = integer()
V0 = integer()
See uniform1f/2
uniform2i(Location, V0, V1) -> ok
Types:
Location = integer()
V0 = integer()
V1 = integer()
See uniform1f/2
uniform3i(Location, V0, V1, V2) -> ok
Types:
Location = integer()
V0 = integer()
V1 = integer()
V2 = integer()
See uniform1f/2
uniform4i(Location, V0, V1, V2, V3) -> ok
Types:
Location = integer()
V0 = integer()
V1 = integer()
V2 = integer()
V3 = integer()
See uniform1f/2
uniform1fv(Location, Value) -> ok
Types:
Location = integer()
Value = [float()]
See uniform1f/2
uniform2fv(Location, Value) -> ok
Types:
Location = integer()
Value = [{float(), float()}]
See uniform1f/2
uniform3fv(Location, Value) -> ok
Types:
Location = integer()
Value = [{float(), float(), float()}]
See uniform1f/2
uniform4fv(Location, Value) -> ok
Types:
Location = integer()
Value = [{float(), float(), float(), float()}]
See uniform1f/2
uniform1iv(Location, Value) -> ok
Types:
Location = integer()
Value = [integer()]
See uniform1f/2
uniform2iv(Location, Value) -> ok
Types:
Location = integer()
Value = [{integer(), integer()}]
See uniform1f/2
uniform3iv(Location, Value) -> ok
Types:
Location = integer()
Value = [{integer(), integer(), integer()}]
See uniform1f/2
uniform4iv(Location, Value) -> ok
Types:
Location = integer()
Value = [{integer(), integer(), integer(), integer()}]
See uniform1f/2
uniformMatrix2fv(Location, Transpose, Value) -> ok
Types:
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float()}]
See uniform1f/2
uniformMatrix3fv(Location, Transpose, Value) -> ok
Types:
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float(), float(),
float(), float()}]
See uniform1f/2
uniformMatrix4fv(Location, Transpose, Value) -> ok
Types:
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float(), float(),
float(), float(), float(), float(), float(), float(), float(), float(),
float()}]
See uniform1f/2
validateProgram(Program) -> ok
Types:
Program = integer()
Validates a program object
gl:validateProgram checks to see whether the executables contained in Program can
execute given the current OpenGL state. The information generated by the validation
process will be stored in Program 's information log. The validation information
may consist of an empty string, or it may be a string containing information about
how the current program object interacts with the rest of current OpenGL state.
This provides a way for OpenGL implementers to convey more information about why
the current program is inefficient, suboptimal, failing to execute, and so on.
See external documentation.
vertexAttrib1d(Index, X) -> ok
Types:
Index = integer()
X = float()
Specifies the value of a generic vertex attribute
The gl:vertexAttrib family of entry points allows an application to pass generic
vertex attributes in numbered locations.
See external documentation.
vertexAttrib1dv(Index::integer(), V) -> ok
Types:
V = {X::float()}
Equivalent to vertexAttrib1d(Index, X).
vertexAttrib1f(Index, X) -> ok
Types:
Index = integer()
X = float()
See vertexAttrib1d/2
vertexAttrib1fv(Index::integer(), V) -> ok
Types:
V = {X::float()}
Equivalent to vertexAttrib1f(Index, X).
vertexAttrib1s(Index, X) -> ok
Types:
Index = integer()
X = integer()
See vertexAttrib1d/2
vertexAttrib1sv(Index::integer(), V) -> ok
Types:
V = {X::integer()}
Equivalent to vertexAttrib1s(Index, X).
vertexAttrib2d(Index, X, Y) -> ok
Types:
Index = integer()
X = float()
Y = float()
See vertexAttrib1d/2
vertexAttrib2dv(Index::integer(), V) -> ok
Types:
V = {X::float(), Y::float()}
Equivalent to vertexAttrib2d(Index, X, Y).
vertexAttrib2f(Index, X, Y) -> ok
Types:
Index = integer()
X = float()
Y = float()
See vertexAttrib1d/2
vertexAttrib2fv(Index::integer(), V) -> ok
Types:
V = {X::float(), Y::float()}
Equivalent to vertexAttrib2f(Index, X, Y).
vertexAttrib2s(Index, X, Y) -> ok
Types:
Index = integer()
X = integer()
Y = integer()
See vertexAttrib1d/2
vertexAttrib2sv(Index::integer(), V) -> ok
Types:
V = {X::integer(), Y::integer()}
Equivalent to vertexAttrib2s(Index, X, Y).
vertexAttrib3d(Index, X, Y, Z) -> ok
Types:
Index = integer()
X = float()
Y = float()
Z = float()
See vertexAttrib1d/2
vertexAttrib3dv(Index::integer(), V) -> ok
Types:
V = {X::float(), Y::float(), Z::float()}
Equivalent to vertexAttrib3d(Index, X, Y, Z).
vertexAttrib3f(Index, X, Y, Z) -> ok
Types:
Index = integer()
X = float()
Y = float()
Z = float()
See vertexAttrib1d/2
vertexAttrib3fv(Index::integer(), V) -> ok
Types:
V = {X::float(), Y::float(), Z::float()}
Equivalent to vertexAttrib3f(Index, X, Y, Z).
vertexAttrib3s(Index, X, Y, Z) -> ok
Types:
Index = integer()
X = integer()
Y = integer()
Z = integer()
See vertexAttrib1d/2
vertexAttrib3sv(Index::integer(), V) -> ok
Types:
V = {X::integer(), Y::integer(), Z::integer()}
Equivalent to vertexAttrib3s(Index, X, Y, Z).
vertexAttrib4Nbv(Index, V) -> ok
Types:
Index = integer()
V = {integer(), integer(), integer(), integer()}
See vertexAttrib1d/2
vertexAttrib4Niv(Index, V) -> ok
Types:
Index = integer()
V = {integer(), integer(), integer(), integer()}
See vertexAttrib1d/2
vertexAttrib4Nsv(Index, V) -> ok
Types:
Index = integer()
V = {integer(), integer(), integer(), integer()}
See vertexAttrib1d/2
vertexAttrib4Nub(Index, X, Y, Z, W) -> ok
Types:
Index = integer()
X = integer()
Y = integer()
Z = integer()
W = integer()
See vertexAttrib1d/2
vertexAttrib4Nubv(Index::integer(), V) -> ok
Types:
V = {X::integer(), Y::integer(), Z::integer(), W::integer()}
Equivalent to vertexAttrib4Nub(Index, X, Y, Z, W).
vertexAttrib4Nuiv(Index, V) -> ok
Types:
Index = integer()
V = {integer(), integer(), integer(), integer()}
See vertexAttrib1d/2
vertexAttrib4Nusv(Index, V) -> ok
Types:
Index = integer()
V = {integer(), integer(), integer(), integer()}
See vertexAttrib1d/2
vertexAttrib4bv(Index, V) -> ok
Types:
Index = integer()
V = {integer(), integer(), integer(), integer()}
See vertexAttrib1d/2
vertexAttrib4d(Index, X, Y, Z, W) -> ok
Types:
Index = integer()
X = float()
Y = float()
Z = float()
W = float()
See vertexAttrib1d/2
vertexAttrib4dv(Index::integer(), V) -> ok
Types:
V = {X::float(), Y::float(), Z::float(), W::float()}
Equivalent to vertexAttrib4d(Index, X, Y, Z, W).
vertexAttrib4f(Index, X, Y, Z, W) -> ok
Types:
Index = integer()
X = float()
Y = float()
Z = float()
W = float()
See vertexAttrib1d/2
vertexAttrib4fv(Index::integer(), V) -> ok
Types:
V = {X::float(), Y::float(), Z::float(), W::float()}
Equivalent to vertexAttrib4f(Index, X, Y, Z, W).
vertexAttrib4iv(Index, V) -> ok
Types:
Index = integer()
V = {integer(), integer(), integer(), integer()}
See vertexAttrib1d/2
vertexAttrib4s(Index, X, Y, Z, W) -> ok
Types:
Index = integer()
X = integer()
Y = integer()
Z = integer()
W = integer()
See vertexAttrib1d/2
vertexAttrib4sv(Index::integer(), V) -> ok
Types:
V = {X::integer(), Y::integer(), Z::integer(), W::integer()}
Equivalent to vertexAttrib4s(Index, X, Y, Z, W).
vertexAttrib4ubv(Index, V) -> ok
Types:
Index = integer()
V = {integer(), integer(), integer(), integer()}
See vertexAttrib1d/2
vertexAttrib4uiv(Index, V) -> ok
Types:
Index = integer()
V = {integer(), integer(), integer(), integer()}
See vertexAttrib1d/2
vertexAttrib4usv(Index, V) -> ok
Types:
Index = integer()
V = {integer(), integer(), integer(), integer()}
See vertexAttrib1d/2
vertexAttribPointer(Index, Size, Type, Normalized, Stride, Pointer) -> ok
Types:
Index = integer()
Size = integer()
Type = enum()
Normalized = 0 | 1
Stride = integer()
Pointer = offset() | mem()
Define an array of generic vertex attribute data
gl:vertexAttribPointer, gl:vertexAttribIPointer and gl:vertexAttribLPointer specify
the location and data format of the array of generic vertex attributes at index
Index to use when rendering. Size specifies the number of components per attribute
and must be 1, 2, 3, 4, or ?GL_BGRA. Type specifies the data type of each
component, and Stride specifies the byte stride from one attribute to the next,
allowing vertices and attributes to be packed into a single array or stored in
separate arrays.
See external documentation.
uniformMatrix2x3fv(Location, Transpose, Value) -> ok
Types:
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float()}]
See uniform1f/2
uniformMatrix3x2fv(Location, Transpose, Value) -> ok
Types:
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float()}]
See uniform1f/2
uniformMatrix2x4fv(Location, Transpose, Value) -> ok
Types:
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float(), float(),
float()}]
See uniform1f/2
uniformMatrix4x2fv(Location, Transpose, Value) -> ok
Types:
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float(), float(),
float()}]
See uniform1f/2
uniformMatrix3x4fv(Location, Transpose, Value) -> ok
Types:
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float(), float(),
float(), float(), float(), float(), float()}]
See uniform1f/2
uniformMatrix4x3fv(Location, Transpose, Value) -> ok
Types:
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float(), float(),
float(), float(), float(), float(), float()}]
See uniform1f/2
colorMaski(Index, R, G, B, A) -> ok
Types:
Index = integer()
R = 0 | 1
G = 0 | 1
B = 0 | 1
A = 0 | 1
glColorMaski
See external documentation.
getBooleani_v(Target, Index) -> [0 | 1]
Types:
Target = enum()
Index = integer()
See getBooleanv/1
getIntegeri_v(Target, Index) -> [integer()]
Types:
Target = enum()
Index = integer()
See getBooleanv/1
enablei(Target, Index) -> ok
Types:
Target = enum()
Index = integer()
See enable/1
disablei(Target, Index) -> ok
Types:
Target = enum()
Index = integer()
glEnablei
See external documentation.
isEnabledi(Target, Index) -> 0 | 1
Types:
Target = enum()
Index = integer()
glIsEnabledi
See external documentation.
beginTransformFeedback(PrimitiveMode) -> ok
Types:
PrimitiveMode = enum()
Start transform feedback operation
Transform feedback mode captures the values of varying variables written by the
vertex shader (or, if active, the geometry shader). Transform feedback is said to
be active after a call to gl:beginTransformFeedback until a subsequent call to
gl:beginTransformFeedback/1 . Transform feedback commands must be paired.
See external documentation.
endTransformFeedback() -> ok
See beginTransformFeedback/1
bindBufferRange(Target, Index, Buffer, Offset, Size) -> ok
Types:
Target = enum()
Index = integer()
Buffer = integer()
Offset = integer()
Size = integer()
Bind a range within a buffer object to an indexed buffer target
gl:bindBufferRange binds a range the buffer object Buffer represented by Offset and
Size to the binding point at index Index of the array of targets specified by
Target . Each Target represents an indexed array of buffer binding points, as well
as a single general binding point that can be used by other buffer manipulation
functions such as gl:bindBuffer/2 or see glMapBuffer. In addition to binding a
range of Buffer to the indexed buffer binding target, gl:bindBufferBase also binds
the range to the generic buffer binding point specified by Target .
See external documentation.
bindBufferBase(Target, Index, Buffer) -> ok
Types:
Target = enum()
Index = integer()
Buffer = integer()
Bind a buffer object to an indexed buffer target
gl:bindBufferBase binds the buffer object Buffer to the binding point at index
Index of the array of targets specified by Target . Each Target represents an
indexed array of buffer binding points, as well as a single general binding point
that can be used by other buffer manipulation functions such as gl:bindBuffer/2 or
see glMapBuffer. In addition to binding Buffer to the indexed buffer binding
target, gl:bindBufferBase also binds Buffer to the generic buffer binding point
specified by Target .
See external documentation.
transformFeedbackVaryings(Program, Varyings, BufferMode) -> ok
Types:
Program = integer()
Varyings = iolist()
BufferMode = enum()
Specify values to record in transform feedback buffers
The names of the vertex or geometry shader outputs to be recorded in transform
feedback mode are specified using gl:transformFeedbackVaryings. When a geometry
shader is active, transform feedback records the values of selected geometry shader
output variables from the emitted vertices. Otherwise, the values of the selected
vertex shader outputs are recorded.
See external documentation.
getTransformFeedbackVarying(Program, Index, BufSize) -> {Size::integer(), Type::enum(),
Name::string()}
Types:
Program = integer()
Index = integer()
BufSize = integer()
Retrieve information about varying variables selected for transform feedback
Information about the set of varying variables in a linked program that will be
captured during transform feedback may be retrieved by calling
gl:getTransformFeedbackVarying. gl:getTransformFeedbackVarying provides information
about the varying variable selected by Index . An Index of 0 selects the first
varying variable specified in the Varyings array passed to
gl:transformFeedbackVaryings/3 , and an Index of ?GL_TRANSFORM_FEEDBACK_VARYINGS-1
selects the last such variable.
See external documentation.
clampColor(Target, Clamp) -> ok
Types:
Target = enum()
Clamp = enum()
specify whether data read via
gl:readPixels/7 should be clamped
gl:clampColor controls color clamping that is performed during gl:readPixels/7 .
Target must be ?GL_CLAMP_READ_COLOR. If Clamp is ?GL_TRUE, read color clamping is
enabled; if Clamp is ?GL_FALSE, read color clamping is disabled. If Clamp is
?GL_FIXED_ONLY, read color clamping is enabled only if the selected read buffer has
fixed point components and disabled otherwise.
See external documentation.
beginConditionalRender(Id, Mode) -> ok
Types:
Id = integer()
Mode = enum()
Start conditional rendering
Conditional rendering is started using gl:beginConditionalRender and ended using
gl:endConditionalRender . During conditional rendering, all vertex array commands,
as well as gl:clear/1 and gl:clearBufferiv/3 have no effect if the
(?GL_SAMPLES_PASSED) result of the query object Id is zero, or if the
(?GL_ANY_SAMPLES_PASSED) result is ?GL_FALSE . The results of commands setting the
current vertex state, such as gl:vertexAttrib1d/2 are undefined. If the
(?GL_SAMPLES_PASSED) result is non-zero or if the (?GL_ANY_SAMPLES_PASSED ) result
is ?GL_TRUE, such commands are not discarded. The Id parameter to
gl:beginConditionalRender must be the name of a query object previously returned
from a call to gl:genQueries/1 . Mode specifies how the results of the query object
are to be interpreted. If Mode is ?GL_QUERY_WAIT, the GL waits for the results of
the query to be available and then uses the results to determine if subsequent
rendering commands are discarded. If Mode is ?GL_QUERY_NO_WAIT, the GL may choose
to unconditionally execute the subsequent rendering commands without waiting for
the query to complete.
See external documentation.
endConditionalRender() -> ok
See beginConditionalRender/2
vertexAttribIPointer(Index, Size, Type, Stride, Pointer) -> ok
Types:
Index = integer()
Size = integer()
Type = enum()
Stride = integer()
Pointer = offset() | mem()
glVertexAttribIPointer
See external documentation.
getVertexAttribIiv(Index, Pname) -> {integer(), integer(), integer(), integer()}
Types:
Index = integer()
Pname = enum()
See getVertexAttribdv/2
getVertexAttribIuiv(Index, Pname) -> {integer(), integer(), integer(), integer()}
Types:
Index = integer()
Pname = enum()
glGetVertexAttribI
See external documentation.
vertexAttribI1i(Index, X) -> ok
Types:
Index = integer()
X = integer()
See vertexAttrib1d/2
vertexAttribI2i(Index, X, Y) -> ok
Types:
Index = integer()
X = integer()
Y = integer()
See vertexAttrib1d/2
vertexAttribI3i(Index, X, Y, Z) -> ok
Types:
Index = integer()
X = integer()
Y = integer()
Z = integer()
See vertexAttrib1d/2
vertexAttribI4i(Index, X, Y, Z, W) -> ok
Types:
Index = integer()
X = integer()
Y = integer()
Z = integer()
W = integer()
See vertexAttrib1d/2
vertexAttribI1ui(Index, X) -> ok
Types:
Index = integer()
X = integer()
See vertexAttrib1d/2
vertexAttribI2ui(Index, X, Y) -> ok
Types:
Index = integer()
X = integer()
Y = integer()
See vertexAttrib1d/2
vertexAttribI3ui(Index, X, Y, Z) -> ok
Types:
Index = integer()
X = integer()
Y = integer()
Z = integer()
See vertexAttrib1d/2
vertexAttribI4ui(Index, X, Y, Z, W) -> ok
Types:
Index = integer()
X = integer()
Y = integer()
Z = integer()
W = integer()
See vertexAttrib1d/2
vertexAttribI1iv(Index::integer(), V) -> ok
Types:
V = {X::integer()}
Equivalent to vertexAttribI1i(Index, X).
vertexAttribI2iv(Index::integer(), V) -> ok
Types:
V = {X::integer(), Y::integer()}
Equivalent to vertexAttribI2i(Index, X, Y).
vertexAttribI3iv(Index::integer(), V) -> ok
Types:
V = {X::integer(), Y::integer(), Z::integer()}
Equivalent to vertexAttribI3i(Index, X, Y, Z).
vertexAttribI4iv(Index::integer(), V) -> ok
Types:
V = {X::integer(), Y::integer(), Z::integer(), W::integer()}
Equivalent to vertexAttribI4i(Index, X, Y, Z, W).
vertexAttribI1uiv(Index::integer(), V) -> ok
Types:
V = {X::integer()}
Equivalent to vertexAttribI1ui(Index, X).
vertexAttribI2uiv(Index::integer(), V) -> ok
Types:
V = {X::integer(), Y::integer()}
Equivalent to vertexAttribI2ui(Index, X, Y).
vertexAttribI3uiv(Index::integer(), V) -> ok
Types:
V = {X::integer(), Y::integer(), Z::integer()}
Equivalent to vertexAttribI3ui(Index, X, Y, Z).
vertexAttribI4uiv(Index::integer(), V) -> ok
Types:
V = {X::integer(), Y::integer(), Z::integer(), W::integer()}
Equivalent to vertexAttribI4ui(Index, X, Y, Z, W).
vertexAttribI4bv(Index, V) -> ok
Types:
Index = integer()
V = {integer(), integer(), integer(), integer()}
See vertexAttrib1d/2
vertexAttribI4sv(Index, V) -> ok
Types:
Index = integer()
V = {integer(), integer(), integer(), integer()}
See vertexAttrib1d/2
vertexAttribI4ubv(Index, V) -> ok
Types:
Index = integer()
V = {integer(), integer(), integer(), integer()}
See vertexAttrib1d/2
vertexAttribI4usv(Index, V) -> ok
Types:
Index = integer()
V = {integer(), integer(), integer(), integer()}
See vertexAttrib1d/2
getUniformuiv(Program, Location) -> {integer(), integer(), integer(), integer(),
integer(), integer(), integer(), integer(), integer(), integer(), integer(), integer(),
integer(), integer(), integer(), integer()}
Types:
Program = integer()
Location = integer()
See getUniformfv/2
bindFragDataLocation(Program, Color, Name) -> ok
Types:
Program = integer()
Color = integer()
Name = string()
Bind a user-defined varying out variable to a fragment shader color number
gl:bindFragDataLocation explicitly specifies the binding of the user-defined
varying out variable Name to fragment shader color number ColorNumber for program
Program . If Name was bound previously, its assigned binding is replaced with
ColorNumber . Name must be a null-terminated string. ColorNumber must be less than
?GL_MAX_DRAW_BUFFERS .
See external documentation.
getFragDataLocation(Program, Name) -> integer()
Types:
Program = integer()
Name = string()
Query the bindings of color numbers to user-defined varying out variables
gl:getFragDataLocation retrieves the assigned color number binding for the user-
defined varying out variable Name for program Program . Program must have
previously been linked. Name must be a null-terminated string. If Name is not the
name of an active user-defined varying out fragment shader variable within Program
, -1 will be returned.
See external documentation.
uniform1ui(Location, V0) -> ok
Types:
Location = integer()
V0 = integer()
See uniform1f/2
uniform2ui(Location, V0, V1) -> ok
Types:
Location = integer()
V0 = integer()
V1 = integer()
See uniform1f/2
uniform3ui(Location, V0, V1, V2) -> ok
Types:
Location = integer()
V0 = integer()
V1 = integer()
V2 = integer()
See uniform1f/2
uniform4ui(Location, V0, V1, V2, V3) -> ok
Types:
Location = integer()
V0 = integer()
V1 = integer()
V2 = integer()
V3 = integer()
See uniform1f/2
uniform1uiv(Location, Value) -> ok
Types:
Location = integer()
Value = [integer()]
See uniform1f/2
uniform2uiv(Location, Value) -> ok
Types:
Location = integer()
Value = [{integer(), integer()}]
See uniform1f/2
uniform3uiv(Location, Value) -> ok
Types:
Location = integer()
Value = [{integer(), integer(), integer()}]
See uniform1f/2
uniform4uiv(Location, Value) -> ok
Types:
Location = integer()
Value = [{integer(), integer(), integer(), integer()}]
See uniform1f/2
texParameterIiv(Target, Pname, Params) -> ok
Types:
Target = enum()
Pname = enum()
Params = tuple()
See texParameterf/3
texParameterIuiv(Target, Pname, Params) -> ok
Types:
Target = enum()
Pname = enum()
Params = tuple()
glTexParameterI
See external documentation.
getTexParameterIiv(Target, Pname) -> {integer(), integer(), integer(), integer()}
Types:
Target = enum()
Pname = enum()
See getTexParameterfv/2
getTexParameterIuiv(Target, Pname) -> {integer(), integer(), integer(), integer()}
Types:
Target = enum()
Pname = enum()
glGetTexParameterI
See external documentation.
clearBufferiv(Buffer, Drawbuffer, Value) -> ok
Types:
Buffer = enum()
Drawbuffer = integer()
Value = tuple()
Clear individual buffers of the currently bound draw framebuffer
gl:clearBuffer* clears the specified buffer to the specified value(s). If Buffer is
?GL_COLOR, a particular draw buffer ?GL_DRAWBUFFER I is specified by passing I as
DrawBuffer . In this case, Value points to a four-element vector specifying the R,
G, B and A color to clear that draw buffer to. If Buffer is one of ?GL_FRONT,
?GL_BACK, ?GL_LEFT, ?GL_RIGHT, or ?GL_FRONT_AND_BACK , identifying multiple
buffers, each selected buffer is cleared to the same value. Clamping and conversion
for fixed-point color buffers are performed in the same fashion as gl:clearColor/4
.
See external documentation.
clearBufferuiv(Buffer, Drawbuffer, Value) -> ok
Types:
Buffer = enum()
Drawbuffer = integer()
Value = tuple()
See clearBufferiv/3
clearBufferfv(Buffer, Drawbuffer, Value) -> ok
Types:
Buffer = enum()
Drawbuffer = integer()
Value = tuple()
See clearBufferiv/3
clearBufferfi(Buffer, Drawbuffer, Depth, Stencil) -> ok
Types:
Buffer = enum()
Drawbuffer = integer()
Depth = float()
Stencil = integer()
glClearBufferfi
See external documentation.
getStringi(Name, Index) -> string()
Types:
Name = enum()
Index = integer()
See getString/1
drawArraysInstanced(Mode, First, Count, Primcount) -> ok
Types:
Mode = enum()
First = integer()
Count = integer()
Primcount = integer()
glDrawArraysInstance
See external documentation.
drawElementsInstanced(Mode, Count, Type, Indices, Primcount) -> ok
Types:
Mode = enum()
Count = integer()
Type = enum()
Indices = offset() | mem()
Primcount = integer()
glDrawElementsInstance
See external documentation.
texBuffer(Target, Internalformat, Buffer) -> ok
Types:
Target = enum()
Internalformat = enum()
Buffer = integer()
Attach the storage for a buffer object to the active buffer texture
gl:texBuffer attaches the storage for the buffer object named Buffer to the active
buffer texture, and specifies the internal format for the texel array found in the
attached buffer object. If Buffer is zero, any buffer object attached to the buffer
texture is detached and no new buffer object is attached. If Buffer is non-zero, it
must be the name of an existing buffer object. Target must be ?GL_TEXTURE_BUFFER .
Internalformat specifies the storage format, and must be one of the following sized
internal formats:
See external documentation.
primitiveRestartIndex(Index) -> ok
Types:
Index = integer()
Specify the primitive restart index
gl:primitiveRestartIndex specifies a vertex array element that is treated specially
when primitive restarting is enabled. This is known as the primitive restart index.
See external documentation.
getInteger64i_v(Target, Index) -> [integer()]
Types:
Target = enum()
Index = integer()
See getBooleanv/1
getBufferParameteri64v(Target, Pname) -> [integer()]
Types:
Target = enum()
Pname = enum()
glGetBufferParameteri64v
See external documentation.
framebufferTexture(Target, Attachment, Texture, Level) -> ok
Types:
Target = enum()
Attachment = enum()
Texture = integer()
Level = integer()
Attach a level of a texture object as a logical buffer to the currently bound
framebuffer object
gl:framebufferTexture, gl:framebufferTexture1D, gl:framebufferTexture2D, and
gl:framebufferTexture attach a selected mipmap level or image of a texture object
as one of the logical buffers of the framebuffer object currently bound to Target .
Target must be ?GL_DRAW_FRAMEBUFFER, ?GL_READ_FRAMEBUFFER, or ?GL_FRAMEBUFFER .
?GL_FRAMEBUFFER is equivalent to ?GL_DRAW_FRAMEBUFFER.
See external documentation.
vertexAttribDivisor(Index, Divisor) -> ok
Types:
Index = integer()
Divisor = integer()
Modify the rate at which generic vertex attributes advance during instanced
rendering
gl:vertexAttribDivisor modifies the rate at which generic vertex attributes advance
when rendering multiple instances of primitives in a single draw call. If Divisor
is zero, the attribute at slot Index advances once per vertex. If Divisor is non-
zero, the attribute advances once per Divisor instances of the set(s) of vertices
being rendered. An attribute is referred to as instanced if its
?GL_VERTEX_ATTRIB_ARRAY_DIVISOR value is non-zero.
See external documentation.
minSampleShading(Value) -> ok
Types:
Value = clamp()
Specifies minimum rate at which sample shaing takes place
gl:minSampleShading specifies the rate at which samples are shaded within a covered
pixel. Sample-rate shading is enabled by calling gl:enable/1 with the parameter
?GL_SAMPLE_SHADING . If ?GL_MULTISAMPLE or ?GL_SAMPLE_SHADING is disabled, sample
shading has no effect. Otherwise, an implementation must provide at least as many
unique color values for each covered fragment as specified by Value times Samples
where Samples is the value of ?GL_SAMPLES for the current framebuffer. At least 1
sample for each covered fragment is generated.
See external documentation.
blendEquationi(Buf, Mode) -> ok
Types:
Buf = integer()
Mode = enum()
See blendEquation/1
blendEquationSeparatei(Buf, ModeRGB, ModeAlpha) -> ok
Types:
Buf = integer()
ModeRGB = enum()
ModeAlpha = enum()
See blendEquationSeparate/2
blendFunci(Buf, Src, Dst) -> ok
Types:
Buf = integer()
Src = enum()
Dst = enum()
glBlendFunci
See external documentation.
blendFuncSeparatei(Buf, SrcRGB, DstRGB, SrcAlpha, DstAlpha) -> ok
Types:
Buf = integer()
SrcRGB = enum()
DstRGB = enum()
SrcAlpha = enum()
DstAlpha = enum()
See blendFuncSeparate/4
loadTransposeMatrixfARB(M) -> ok
Types:
M = matrix()
glLoadTransposeMatrixARB
See external documentation.
loadTransposeMatrixdARB(M) -> ok
Types:
M = matrix()
glLoadTransposeMatrixARB
See external documentation.
multTransposeMatrixfARB(M) -> ok
Types:
M = matrix()
glMultTransposeMatrixARB
See external documentation.
multTransposeMatrixdARB(M) -> ok
Types:
M = matrix()
glMultTransposeMatrixARB
See external documentation.
weightbvARB(Weights) -> ok
Types:
Weights = [integer()]
glWeightARB
See external documentation.
weightsvARB(Weights) -> ok
Types:
Weights = [integer()]
glWeightARB
See external documentation.
weightivARB(Weights) -> ok
Types:
Weights = [integer()]
glWeightARB
See external documentation.
weightfvARB(Weights) -> ok
Types:
Weights = [float()]
glWeightARB
See external documentation.
weightdvARB(Weights) -> ok
Types:
Weights = [float()]
glWeightARB
See external documentation.
weightubvARB(Weights) -> ok
Types:
Weights = [integer()]
glWeightARB
See external documentation.
weightusvARB(Weights) -> ok
Types:
Weights = [integer()]
glWeightARB
See external documentation.
weightuivARB(Weights) -> ok
Types:
Weights = [integer()]
glWeightARB
See external documentation.
vertexBlendARB(Count) -> ok
Types:
Count = integer()
glVertexBlenARB
See external documentation.
currentPaletteMatrixARB(Index) -> ok
Types:
Index = integer()
glCurrentPaletteMatrixARB
See external documentation.
matrixIndexubvARB(Indices) -> ok
Types:
Indices = [integer()]
glMatrixIndexARB
See external documentation.
matrixIndexusvARB(Indices) -> ok
Types:
Indices = [integer()]
glMatrixIndexARB
See external documentation.
matrixIndexuivARB(Indices) -> ok
Types:
Indices = [integer()]
glMatrixIndexARB
See external documentation.
programStringARB(Target, Format, String) -> ok
Types:
Target = enum()
Format = enum()
String = string()
glProgramStringARB
See external documentation.
bindProgramARB(Target, Program) -> ok
Types:
Target = enum()
Program = integer()
glBindProgramARB
See external documentation.
deleteProgramsARB(Programs) -> ok
Types:
Programs = [integer()]
glDeleteProgramsARB
See external documentation.
genProgramsARB(N) -> [integer()]
Types:
N = integer()
glGenProgramsARB
See external documentation.
programEnvParameter4dARB(Target, Index, X, Y, Z, W) -> ok
Types:
Target = enum()
Index = integer()
X = float()
Y = float()
Z = float()
W = float()
glProgramEnvParameterARB
See external documentation.
programEnvParameter4dvARB(Target, Index, Params) -> ok
Types:
Target = enum()
Index = integer()
Params = {float(), float(), float(), float()}
glProgramEnvParameterARB
See external documentation.
programEnvParameter4fARB(Target, Index, X, Y, Z, W) -> ok
Types:
Target = enum()
Index = integer()
X = float()
Y = float()
Z = float()
W = float()
glProgramEnvParameterARB
See external documentation.
programEnvParameter4fvARB(Target, Index, Params) -> ok
Types:
Target = enum()
Index = integer()
Params = {float(), float(), float(), float()}
glProgramEnvParameterARB
See external documentation.
programLocalParameter4dARB(Target, Index, X, Y, Z, W) -> ok
Types:
Target = enum()
Index = integer()
X = float()
Y = float()
Z = float()
W = float()
glProgramLocalParameterARB
See external documentation.
programLocalParameter4dvARB(Target, Index, Params) -> ok
Types:
Target = enum()
Index = integer()
Params = {float(), float(), float(), float()}
glProgramLocalParameterARB
See external documentation.
programLocalParameter4fARB(Target, Index, X, Y, Z, W) -> ok
Types:
Target = enum()
Index = integer()
X = float()
Y = float()
Z = float()
W = float()
glProgramLocalParameterARB
See external documentation.
programLocalParameter4fvARB(Target, Index, Params) -> ok
Types:
Target = enum()
Index = integer()
Params = {float(), float(), float(), float()}
glProgramLocalParameterARB
See external documentation.
getProgramEnvParameterdvARB(Target, Index) -> {float(), float(), float(), float()}
Types:
Target = enum()
Index = integer()
glGetProgramEnvParameterARB
See external documentation.
getProgramEnvParameterfvARB(Target, Index) -> {float(), float(), float(), float()}
Types:
Target = enum()
Index = integer()
glGetProgramEnvParameterARB
See external documentation.
getProgramLocalParameterdvARB(Target, Index) -> {float(), float(), float(), float()}
Types:
Target = enum()
Index = integer()
glGetProgramLocalParameterARB
See external documentation.
getProgramLocalParameterfvARB(Target, Index) -> {float(), float(), float(), float()}
Types:
Target = enum()
Index = integer()
glGetProgramLocalParameterARB
See external documentation.
getProgramStringARB(Target, Pname, String) -> ok
Types:
Target = enum()
Pname = enum()
String = mem()
glGetProgramStringARB
See external documentation.
getBufferParameterivARB(Target, Pname) -> [integer()]
Types:
Target = enum()
Pname = enum()
glGetBufferParameterARB
See external documentation.
deleteObjectARB(Obj) -> ok
Types:
Obj = integer()
glDeleteObjectARB
See external documentation.
getHandleARB(Pname) -> integer()
Types:
Pname = enum()
glGetHandleARB
See external documentation.
detachObjectARB(ContainerObj, AttachedObj) -> ok
Types:
ContainerObj = integer()
AttachedObj = integer()
glDetachObjectARB
See external documentation.
createShaderObjectARB(ShaderType) -> integer()
Types:
ShaderType = enum()
glCreateShaderObjectARB
See external documentation.
shaderSourceARB(ShaderObj, String) -> ok
Types:
ShaderObj = integer()
String = iolist()
glShaderSourceARB
See external documentation.
compileShaderARB(ShaderObj) -> ok
Types:
ShaderObj = integer()
glCompileShaderARB
See external documentation.
createProgramObjectARB() -> integer()
glCreateProgramObjectARB
See external documentation.
attachObjectARB(ContainerObj, Obj) -> ok
Types:
ContainerObj = integer()
Obj = integer()
glAttachObjectARB
See external documentation.
linkProgramARB(ProgramObj) -> ok
Types:
ProgramObj = integer()
glLinkProgramARB
See external documentation.
useProgramObjectARB(ProgramObj) -> ok
Types:
ProgramObj = integer()
glUseProgramObjectARB
See external documentation.
validateProgramARB(ProgramObj) -> ok
Types:
ProgramObj = integer()
glValidateProgramARB
See external documentation.
getObjectParameterfvARB(Obj, Pname) -> float()
Types:
Obj = integer()
Pname = enum()
glGetObjectParameterARB
See external documentation.
getObjectParameterivARB(Obj, Pname) -> integer()
Types:
Obj = integer()
Pname = enum()
glGetObjectParameterARB
See external documentation.
getInfoLogARB(Obj, MaxLength) -> string()
Types:
Obj = integer()
MaxLength = integer()
glGetInfoLogARB
See external documentation.
getAttachedObjectsARB(ContainerObj, MaxCount) -> [integer()]
Types:
ContainerObj = integer()
MaxCount = integer()
glGetAttachedObjectsARB
See external documentation.
getUniformLocationARB(ProgramObj, Name) -> integer()
Types:
ProgramObj = integer()
Name = string()
glGetUniformLocationARB
See external documentation.
getActiveUniformARB(ProgramObj, Index, MaxLength) -> {Size::integer(), Type::enum(),
Name::string()}
Types:
ProgramObj = integer()
Index = integer()
MaxLength = integer()
glGetActiveUniformARB
See external documentation.
getUniformfvARB(ProgramObj, Location) -> matrix()
Types:
ProgramObj = integer()
Location = integer()
glGetUniformARB
See external documentation.
getUniformivARB(ProgramObj, Location) -> {integer(), integer(), integer(), integer(),
integer(), integer(), integer(), integer(), integer(), integer(), integer(), integer(),
integer(), integer(), integer(), integer()}
Types:
ProgramObj = integer()
Location = integer()
glGetUniformARB
See external documentation.
getShaderSourceARB(Obj, MaxLength) -> string()
Types:
Obj = integer()
MaxLength = integer()
glGetShaderSourceARB
See external documentation.
bindAttribLocationARB(ProgramObj, Index, Name) -> ok
Types:
ProgramObj = integer()
Index = integer()
Name = string()
glBindAttribLocationARB
See external documentation.
getActiveAttribARB(ProgramObj, Index, MaxLength) -> {Size::integer(), Type::enum(),
Name::string()}
Types:
ProgramObj = integer()
Index = integer()
MaxLength = integer()
glGetActiveAttribARB
See external documentation.
getAttribLocationARB(ProgramObj, Name) -> integer()
Types:
ProgramObj = integer()
Name = string()
glGetAttribLocationARB
See external documentation.
isRenderbuffer(Renderbuffer) -> 0 | 1
Types:
Renderbuffer = integer()
Determine if a name corresponds to a renderbuffer object
gl:isRenderbuffer returns ?GL_TRUE if Renderbuffer is currently the name of a
renderbuffer object. If Renderbuffer is zero, or if Renderbuffer is not the name of
a renderbuffer object, or if an error occurs, gl:isRenderbuffer returns ?GL_FALSE.
If Renderbuffer is a name returned by gl:genRenderbuffers/1 , by that has not yet
been bound through a call to gl:bindRenderbuffer/2 or gl:framebufferRenderbuffer/4
, then the name is not a renderbuffer object and gl:isRenderbuffer returns
?GL_FALSE .
See external documentation.
bindRenderbuffer(Target, Renderbuffer) -> ok
Types:
Target = enum()
Renderbuffer = integer()
Bind a renderbuffer to a renderbuffer target
gl:bindRenderbuffer binds the renderbuffer object with name Renderbuffer to the
renderbuffer target specified by Target . Target must be ?GL_RENDERBUFFER .
Renderbuffer is the name of a renderbuffer object previously returned from a call
to gl:genRenderbuffers/1 , or zero to break the existing binding of a renderbuffer
object to Target .
See external documentation.
deleteRenderbuffers(Renderbuffers) -> ok
Types:
Renderbuffers = [integer()]
Delete renderbuffer objects
gl:deleteRenderbuffers deletes the N renderbuffer objects whose names are stored in
the array addressed by Renderbuffers . The name zero is reserved by the GL and is
silently ignored, should it occur in Renderbuffers , as are other unused names.
Once a renderbuffer object is deleted, its name is again unused and it has no
contents. If a renderbuffer that is currently bound to the target ?GL_RENDERBUFFER
is deleted, it is as though gl:bindRenderbuffer/2 had been executed with a Target
of ?GL_RENDERBUFFER and a Name of zero.
See external documentation.
genRenderbuffers(N) -> [integer()]
Types:
N = integer()
Generate renderbuffer object names
gl:genRenderbuffers returns N renderbuffer object names in Renderbuffers . There is
no guarantee that the names form a contiguous set of integers; however, it is
guaranteed that none of the returned names was in use immediately before the call
to gl:genRenderbuffers .
See external documentation.
renderbufferStorage(Target, Internalformat, Width, Height) -> ok
Types:
Target = enum()
Internalformat = enum()
Width = integer()
Height = integer()
Establish data storage, format and dimensions of a renderbuffer object's image
gl:renderbufferStorage is equivalent to calling gl:renderbufferStorageMultisample/5
with the Samples set to zero.
See external documentation.
getRenderbufferParameteriv(Target, Pname) -> integer()
Types:
Target = enum()
Pname = enum()
Retrieve information about a bound renderbuffer object
gl:getRenderbufferParameteriv retrieves information about a bound renderbuffer
object. Target specifies the target of the query operation and must be
?GL_RENDERBUFFER . Pname specifies the parameter whose value to query and must be
one of ?GL_RENDERBUFFER_WIDTH , ?GL_RENDERBUFFER_HEIGHT,
?GL_RENDERBUFFER_INTERNAL_FORMAT, ?GL_RENDERBUFFER_RED_SIZE ,
?GL_RENDERBUFFER_GREEN_SIZE, ?GL_RENDERBUFFER_BLUE_SIZE,
?GL_RENDERBUFFER_ALPHA_SIZE , ?GL_RENDERBUFFER_DEPTH_SIZE,
?GL_RENDERBUFFER_DEPTH_SIZE, ?GL_RENDERBUFFER_STENCIL_SIZE , or
?GL_RENDERBUFFER_SAMPLES.
See external documentation.
isFramebuffer(Framebuffer) -> 0 | 1
Types:
Framebuffer = integer()
Determine if a name corresponds to a framebuffer object
gl:isFramebuffer returns ?GL_TRUE if Framebuffer is currently the name of a
framebuffer object. If Framebuffer is zero, or if ?framebuffer is not the name of a
framebuffer object, or if an error occurs, gl:isFramebuffer returns ?GL_FALSE. If
Framebuffer is a name returned by gl:genFramebuffers/1 , by that has not yet been
bound through a call to gl:bindFramebuffer/2 , then the name is not a framebuffer
object and gl:isFramebuffer returns ?GL_FALSE.
See external documentation.
bindFramebuffer(Target, Framebuffer) -> ok
Types:
Target = enum()
Framebuffer = integer()
Bind a framebuffer to a framebuffer target
gl:bindFramebuffer binds the framebuffer object with name Framebuffer to the
framebuffer target specified by Target . Target must be either ?GL_DRAW_FRAMEBUFFER
, ?GL_READ_FRAMEBUFFER or ?GL_FRAMEBUFFER. If a framebuffer object is bound to
?GL_DRAW_FRAMEBUFFER or ?GL_READ_FRAMEBUFFER, it becomes the target for rendering
or readback operations, respectively, until it is deleted or another framebuffer is
bound to the corresponding bind point. Calling gl:bindFramebuffer with Target set
to ?GL_FRAMEBUFFER binds Framebuffer to both the read and draw framebuffer targets.
Framebuffer is the name of a framebuffer object previously returned from a call to
gl:genFramebuffers/1 , or zero to break the existing binding of a framebuffer
object to Target .
See external documentation.
deleteFramebuffers(Framebuffers) -> ok
Types:
Framebuffers = [integer()]
Delete framebuffer objects
gl:deleteFramebuffers deletes the N framebuffer objects whose names are stored in
the array addressed by Framebuffers . The name zero is reserved by the GL and is
silently ignored, should it occur in Framebuffers , as are other unused names. Once
a framebuffer object is deleted, its name is again unused and it has no
attachments. If a framebuffer that is currently bound to one or more of the targets
?GL_DRAW_FRAMEBUFFER or ?GL_READ_FRAMEBUFFER is deleted, it is as though
gl:bindFramebuffer/2 had been executed with the corresponding Target and
Framebuffer zero.
See external documentation.
genFramebuffers(N) -> [integer()]
Types:
N = integer()
Generate framebuffer object names
gl:genFramebuffers returns N framebuffer object names in Ids . There is no
guarantee that the names form a contiguous set of integers; however, it is
guaranteed that none of the returned names was in use immediately before the call
to gl:genFramebuffers .
See external documentation.
checkFramebufferStatus(Target) -> enum()
Types:
Target = enum()
Check the completeness status of a framebuffer
gl:checkFramebufferStatus queries the completeness status of the framebuffer object
currently bound to Target . Target must be ?GL_DRAW_FRAMEBUFFER,
?GL_READ_FRAMEBUFFER or ?GL_FRAMEBUFFER. ?GL_FRAMEBUFFER is equivalent to
?GL_DRAW_FRAMEBUFFER .
See external documentation.
framebufferTexture1D(Target, Attachment, Textarget, Texture, Level) -> ok
Types:
Target = enum()
Attachment = enum()
Textarget = enum()
Texture = integer()
Level = integer()
See framebufferTexture/4
framebufferTexture2D(Target, Attachment, Textarget, Texture, Level) -> ok
Types:
Target = enum()
Attachment = enum()
Textarget = enum()
Texture = integer()
Level = integer()
See framebufferTexture/4
framebufferTexture3D(Target, Attachment, Textarget, Texture, Level, Zoffset) -> ok
Types:
Target = enum()
Attachment = enum()
Textarget = enum()
Texture = integer()
Level = integer()
Zoffset = integer()
See framebufferTexture/4
framebufferRenderbuffer(Target, Attachment, Renderbuffertarget, Renderbuffer) -> ok
Types:
Target = enum()
Attachment = enum()
Renderbuffertarget = enum()
Renderbuffer = integer()
Attach a renderbuffer as a logical buffer to the currently bound framebuffer object
gl:framebufferRenderbuffer attaches a renderbuffer as one of the logical buffers of
the currently bound framebuffer object. Renderbuffer is the name of the
renderbuffer object to attach and must be either zero, or the name of an existing
renderbuffer object of type Renderbuffertarget . If Renderbuffer is not zero and if
gl:framebufferRenderbuffer is successful, then the renderbuffer name Renderbuffer
will be used as the logical buffer identified by Attachment of the framebuffer
currently bound to Target .
See external documentation.
getFramebufferAttachmentParameteriv(Target, Attachment, Pname) -> integer()
Types:
Target = enum()
Attachment = enum()
Pname = enum()
Retrieve information about attachments of a bound framebuffer object
gl:getFramebufferAttachmentParameter returns information about attachments of a
bound framebuffer object. Target specifies the framebuffer binding point and must
be ?GL_DRAW_FRAMEBUFFER, ?GL_READ_FRAMEBUFFER or ?GL_FRAMEBUFFER. ?GL_FRAMEBUFFER
is equivalent to ?GL_DRAW_FRAMEBUFFER.
See external documentation.
generateMipmap(Target) -> ok
Types:
Target = enum()
Generate mipmaps for a specified texture target
gl:generateMipmap generates mipmaps for the texture attached to Target of the
active texture unit. For cube map textures, a ?GL_INVALID_OPERATION error is
generated if the texture attached to Target is not cube complete.
See external documentation.
blitFramebuffer(SrcX0, SrcY0, SrcX1, SrcY1, DstX0, DstY0, DstX1, DstY1, Mask, Filter) ->
ok
Types:
SrcX0 = integer()
SrcY0 = integer()
SrcX1 = integer()
SrcY1 = integer()
DstX0 = integer()
DstY0 = integer()
DstX1 = integer()
DstY1 = integer()
Mask = integer()
Filter = enum()
Copy a block of pixels from the read framebuffer to the draw framebuffer
gl:blitFramebuffer transfers a rectangle of pixel values from one region of the
read framebuffer to another region in the draw framebuffer. Mask is the bitwise OR
of a number of values indicating which buffers are to be copied. The values are
?GL_COLOR_BUFFER_BIT , ?GL_DEPTH_BUFFER_BIT, and ?GL_STENCIL_BUFFER_BIT. The pixels
corresponding to these buffers are copied from the source rectangle bounded by the
locations ( SrcX0 ; SrcY0 ) and ( SrcX1 ; SrcY1 ) to the destination rectangle
bounded by the locations ( DstX0 ; DstY0 ) and ( DstX1 ; DstY1 ). The lower bounds
of the rectangle are inclusive, while the upper bounds are exclusive.
See external documentation.
renderbufferStorageMultisample(Target, Samples, Internalformat, Width, Height) -> ok
Types:
Target = enum()
Samples = integer()
Internalformat = enum()
Width = integer()
Height = integer()
Establish data storage, format, dimensions and sample count of a renderbuffer
object's image
gl:renderbufferStorageMultisample establishes the data storage, format, dimensions
and number of samples of a renderbuffer object's image.
See external documentation.
framebufferTextureLayer(Target, Attachment, Texture, Level, Layer) -> ok
Types:
Target = enum()
Attachment = enum()
Texture = integer()
Level = integer()
Layer = integer()
See framebufferTexture/4
framebufferTextureFaceARB(Target, Attachment, Texture, Level, Face) -> ok
Types:
Target = enum()
Attachment = enum()
Texture = integer()
Level = integer()
Face = enum()
See framebufferTexture/4
flushMappedBufferRange(Target, Offset, Length) -> ok
Types:
Target = enum()
Offset = integer()
Length = integer()
Indicate modifications to a range of a mapped buffer
gl:flushMappedBufferRange indicates that modifications have been made to a range of
a mapped buffer. The buffer must previously have been mapped with the
?GL_MAP_FLUSH_EXPLICIT flag. Offset and Length indicate the modified subrange of
the mapping, in basic units. The specified subrange to flush is relative to the
start of the currently mapped range of the buffer. gl:flushMappedBufferRange may be
called multiple times to indicate distinct subranges of the mapping which require
flushing.
See external documentation.
bindVertexArray(Array) -> ok
Types:
Array = integer()
Bind a vertex array object
gl:bindVertexArray binds the vertex array object with name Array . Array is the
name of a vertex array object previously returned from a call to
gl:genVertexArrays/1 , or zero to break the existing vertex array object binding.
See external documentation.
deleteVertexArrays(Arrays) -> ok
Types:
Arrays = [integer()]
Delete vertex array objects
gl:deleteVertexArrays deletes N vertex array objects whose names are stored in the
array addressed by Arrays . Once a vertex array object is deleted it has no
contents and its name is again unused. If a vertex array object that is currently
bound is deleted, the binding for that object reverts to zero and the default
vertex array becomes current. Unused names in Arrays are silently ignored, as is
the value zero.
See external documentation.
genVertexArrays(N) -> [integer()]
Types:
N = integer()
Generate vertex array object names
gl:genVertexArrays returns N vertex array object names in Arrays . There is no
guarantee that the names form a contiguous set of integers; however, it is
guaranteed that none of the returned names was in use immediately before the call
to gl:genVertexArrays .
See external documentation.
isVertexArray(Array) -> 0 | 1
Types:
Array = integer()
Determine if a name corresponds to a vertex array object
gl:isVertexArray returns ?GL_TRUE if Array is currently the name of a renderbuffer
object. If Renderbuffer is zero, or if Array is not the name of a renderbuffer
object, or if an error occurs, gl:isVertexArray returns ?GL_FALSE . If Array is a
name returned by gl:genVertexArrays/1 , by that has not yet been bound through a
call to gl:bindVertexArray/1 , then the name is not a vertex array object and
gl:isVertexArray returns ?GL_FALSE.
See external documentation.
getUniformIndices(Program, UniformNames) -> [integer()]
Types:
Program = integer()
UniformNames = iolist()
Retrieve the index of a named uniform block
gl:getUniformIndices retrieves the indices of a number of uniforms within Program .
See external documentation.
getActiveUniformsiv(Program, UniformIndices, Pname) -> [integer()]
Types:
Program = integer()
UniformIndices = [integer()]
Pname = enum()
glGetActiveUniforms
See external documentation.
getActiveUniformName(Program, UniformIndex, BufSize) -> string()
Types:
Program = integer()
UniformIndex = integer()
BufSize = integer()
Query the name of an active uniform
gl:getActiveUniformName returns the name of the active uniform at UniformIndex
within Program . If UniformName is not NULL, up to BufSize characters (including a
nul-terminator) will be written into the array whose address is specified by
UniformName . If Length is not NULL, the number of characters that were (or would
have been) written into UniformName (not including the nul-terminator) will be
placed in the variable whose address is specified in Length . If Length is NULL, no
length is returned. The length of the longest uniform name in Program is given by
the value of ?GL_ACTIVE_UNIFORM_MAX_LENGTH, which can be queried with
gl:getProgramiv/2 .
See external documentation.
getUniformBlockIndex(Program, UniformBlockName) -> integer()
Types:
Program = integer()
UniformBlockName = string()
Retrieve the index of a named uniform block
gl:getUniformBlockIndex retrieves the index of a uniform block within Program .
See external documentation.
getActiveUniformBlockiv(Program, UniformBlockIndex, Pname, Params) -> ok
Types:
Program = integer()
UniformBlockIndex = integer()
Pname = enum()
Params = mem()
Query information about an active uniform block
gl:getActiveUniformBlockiv retrieves information about an active uniform block
within Program .
See external documentation.
getActiveUniformBlockName(Program, UniformBlockIndex, BufSize) -> string()
Types:
Program = integer()
UniformBlockIndex = integer()
BufSize = integer()
Retrieve the name of an active uniform block
gl:getActiveUniformBlockName retrieves the name of the active uniform block at
UniformBlockIndex within Program .
See external documentation.
uniformBlockBinding(Program, UniformBlockIndex, UniformBlockBinding) -> ok
Types:
Program = integer()
UniformBlockIndex = integer()
UniformBlockBinding = integer()
Assign a binding point to an active uniform block
Binding points for active uniform blocks are assigned using gl:uniformBlockBinding.
Each of a program's active uniform blocks has a corresponding uniform buffer
binding point. Program is the name of a program object for which the command
gl:linkProgram/1 has been issued in the past.
See external documentation.
copyBufferSubData(ReadTarget, WriteTarget, ReadOffset, WriteOffset, Size) -> ok
Types:
ReadTarget = enum()
WriteTarget = enum()
ReadOffset = integer()
WriteOffset = integer()
Size = integer()
Copy part of the data store of a buffer object to the data store of another buffer
object
gl:copyBufferSubData copies part of the data store attached to Readtarget to the
data store attached to Writetarget . The number of basic machine units indicated by
Size is copied from the source, at offset Readoffset to the destination at
Writeoffset , also in basic machine units.
See external documentation.
drawElementsBaseVertex(Mode, Count, Type, Indices, Basevertex) -> ok
Types:
Mode = enum()
Count = integer()
Type = enum()
Indices = offset() | mem()
Basevertex = integer()
Render primitives from array data with a per-element offset
gl:drawElementsBaseVertex behaves identically to gl:drawElements/4 except that the
ith element transferred by the corresponding draw call will be taken from element
Indices [i] + Basevertex of each enabled array. If the resulting value is larger
than the maximum value representable by Type , it is as if the calculation were
upconverted to 32-bit unsigned integers (with wrapping on overflow conditions). The
operation is undefined if the sum would be negative.
See external documentation.
drawRangeElementsBaseVertex(Mode, Start, End, Count, Type, Indices, Basevertex) -> ok
Types:
Mode = enum()
Start = integer()
End = integer()
Count = integer()
Type = enum()
Indices = offset() | mem()
Basevertex = integer()
Render primitives from array data with a per-element offset
gl:drawRangeElementsBaseVertex is a restricted form of gl:drawElementsBaseVertex/5
. Mode , Start , End , Count and Basevertex match the corresponding arguments to
gl:drawElementsBaseVertex/5 , with the additional constraint that all values in the
array Indices must lie between Start and End , inclusive, prior to adding
Basevertex . Index values lying outside the range [ Start , End ] are treated in
the same way as gl:drawElementsBaseVertex/5 . The i th element transferred by the
corresponding draw call will be taken from element Indices [i] + Basevertex of each
enabled array. If the resulting value is larger than the maximum value
representable by Type , it is as if the calculation were upconverted to 32-bit
unsigned integers (with wrapping on overflow conditions). The operation is
undefined if the sum would be negative.
See external documentation.
drawElementsInstancedBaseVertex(Mode, Count, Type, Indices, Primcount, Basevertex) -> ok
Types:
Mode = enum()
Count = integer()
Type = enum()
Indices = offset() | mem()
Primcount = integer()
Basevertex = integer()
Render multiple instances of a set of primitives from array data with a per-element
offset
gl:drawElementsInstancedBaseVertex behaves identically to
gl:drawElementsInstanced/5 except that the ith element transferred by the
corresponding draw call will be taken from element Indices [i] + Basevertex of each
enabled array. If the resulting value is larger than the maximum value
representable by Type , it is as if the calculation were upconverted to 32-bit
unsigned integers (with wrapping on overflow conditions). The operation is
undefined if the sum would be negative.
See external documentation.
provokingVertex(Mode) -> ok
Types:
Mode = enum()
Specifiy the vertex to be used as the source of data for flat shaded varyings
Flatshading a vertex shader varying output means to assign all vetices of the
primitive the same value for that output. The vertex from which these values is
derived is known as the provoking vertex and gl:provokingVertex specifies which
vertex is to be used as the source of data for flat shaded varyings.
See external documentation.
fenceSync(Condition, Flags) -> integer()
Types:
Condition = enum()
Flags = integer()
Create a new sync object and insert it into the GL command stream
gl:fenceSync creates a new fence sync object, inserts a fence command into the GL
command stream and associates it with that sync object, and returns a non-zero name
corresponding to the sync object.
See external documentation.
isSync(Sync) -> 0 | 1
Types:
Sync = integer()
Determine if a name corresponds to a sync object
gl:isSync returns ?GL_TRUE if Sync is currently the name of a sync object. If Sync
is not the name of a sync object, or if an error occurs, gl:isSync returns
?GL_FALSE. Note that zero is not the name of a sync object.
See external documentation.
deleteSync(Sync) -> ok
Types:
Sync = integer()
Delete a sync object
gl:deleteSync deletes the sync object specified by Sync . If the fence command
corresponding to the specified sync object has completed, or if no gl:waitSync/3 or
gl:clientWaitSync/3 commands are blocking on Sync , the object is deleted
immediately. Otherwise, Sync is flagged for deletion and will be deleted when it is
no longer associated with any fence command and is no longer blocking any
gl:waitSync/3 or gl:clientWaitSync/3 command. In either case, after gl:deleteSync
returns, the name Sync is invalid and can no longer be used to refer to the sync
object.
See external documentation.
clientWaitSync(Sync, Flags, Timeout) -> enum()
Types:
Sync = integer()
Flags = integer()
Timeout = integer()
Block and wait for a sync object to become signaled
gl:clientWaitSync causes the client to block and wait for the sync object specified
by Sync to become signaled. If Sync is signaled when gl:clientWaitSync is called,
gl:clientWaitSync returns immediately, otherwise it will block and wait for up to
Timeout nanoseconds for Sync to become signaled.
See external documentation.
waitSync(Sync, Flags, Timeout) -> ok
Types:
Sync = integer()
Flags = integer()
Timeout = integer()
Instruct the GL server to block until the specified sync object becomes signaled
gl:waitSync causes the GL server to block and wait until Sync becomes signaled.
Sync is the name of an existing sync object upon which to wait. Flags and Timeout
are currently not used and must be set to zero and the special value
?GL_TIMEOUT_IGNORED , respectively
Flags and Timeout are placeholders for anticipated future extensions of sync object
capabilities. They must have these reserved values in order that existing code
calling gl:waitSync operate properly in the presence of such extensions.
See external documentation.
getInteger64v(Pname) -> [integer()]
Types:
Pname = enum()
See getBooleanv/1
getSynciv(Sync, Pname, BufSize) -> [integer()]
Types:
Sync = integer()
Pname = enum()
BufSize = integer()
Query the properties of a sync object
gl:getSynciv retrieves properties of a sync object. Sync specifies the name of the
sync object whose properties to retrieve.
See external documentation.
texImage2DMultisample(Target, Samples, Internalformat, Width, Height,
Fixedsamplelocations) -> ok
Types:
Target = enum()
Samples = integer()
Internalformat = integer()
Width = integer()
Height = integer()
Fixedsamplelocations = 0 | 1
Establish the data storage, format, dimensions, and number of samples of a
multisample texture's image
gl:texImage2DMultisample establishes the data storage, format, dimensions and
number of samples of a multisample texture's image.
See external documentation.
texImage3DMultisample(Target, Samples, Internalformat, Width, Height, Depth,
Fixedsamplelocations) -> ok
Types:
Target = enum()
Samples = integer()
Internalformat = integer()
Width = integer()
Height = integer()
Depth = integer()
Fixedsamplelocations = 0 | 1
Establish the data storage, format, dimensions, and number of samples of a
multisample texture's image
gl:texImage3DMultisample establishes the data storage, format, dimensions and
number of samples of a multisample texture's image.
See external documentation.
getMultisamplefv(Pname, Index) -> {float(), float()}
Types:
Pname = enum()
Index = integer()
Retrieve the location of a sample
gl:getMultisamplefv queries the location of a given sample. Pname specifies the
sample parameter to retrieve and must be ?GL_SAMPLE_POSITION. Index corresponds to
the sample for which the location should be returned. The sample location is
returned as two floating-point values in Val[0] and Val[1] , each between 0 and 1,
corresponding to the X and Y locations respectively in the GL pixel space of that
sample. (0.5, 0.5) this corresponds to the pixel center. Index must be between zero
and the value of ?GL_SAMPLES - 1.
See external documentation.
sampleMaski(Index, Mask) -> ok
Types:
Index = integer()
Mask = integer()
Set the value of a sub-word of the sample mask
gl:sampleMaski sets one 32-bit sub-word of the multi-word sample mask,
?GL_SAMPLE_MASK_VALUE .
See external documentation.
namedStringARB(Type, Name, String) -> ok
Types:
Type = enum()
Name = string()
String = string()
glNamedStringARB
See external documentation.
deleteNamedStringARB(Name) -> ok
Types:
Name = string()
glDeleteNamedStringARB
See external documentation.
compileShaderIncludeARB(Shader, Path) -> ok
Types:
Shader = integer()
Path = iolist()
glCompileShaderIncludeARB
See external documentation.
isNamedStringARB(Name) -> 0 | 1
Types:
Name = string()
glIsNamedStringARB
See external documentation.
getNamedStringARB(Name, BufSize) -> string()
Types:
Name = string()
BufSize = integer()
glGetNamedStringARB
See external documentation.
getNamedStringivARB(Name, Pname) -> integer()
Types:
Name = string()
Pname = enum()
glGetNamedStringARB
See external documentation.
bindFragDataLocationIndexed(Program, ColorNumber, Index, Name) -> ok
Types:
Program = integer()
ColorNumber = integer()
Index = integer()
Name = string()
glBindFragDataLocationIndexe
See external documentation.
getFragDataIndex(Program, Name) -> integer()
Types:
Program = integer()
Name = string()
Query the bindings of color indices to user-defined varying out variables
gl:getFragDataIndex returns the index of the fragment color to which the variable
Name was bound when the program object Program was last linked. If Name is not a
varying out variable of Program , or if an error occurs, -1 will be returned.
See external documentation.
genSamplers(Count) -> [integer()]
Types:
Count = integer()
Generate sampler object names
gl:genSamplers returns N sampler object names in Samplers . There is no guarantee
that the names form a contiguous set of integers; however, it is guaranteed that
none of the returned names was in use immediately before the call to gl:genSamplers
.
See external documentation.
deleteSamplers(Samplers) -> ok
Types:
Samplers = [integer()]
Delete named sampler objects
gl:deleteSamplers deletes N sampler objects named by the elements of the array Ids
. After a sampler object is deleted, its name is again unused. If a sampler object
that is currently bound to a sampler unit is deleted, it is as though
gl:bindSampler/2 is called with unit set to the unit the sampler is bound to and
sampler zero. Unused names in samplers are silently ignored, as is the reserved
name zero.
See external documentation.
isSampler(Sampler) -> 0 | 1
Types:
Sampler = integer()
Determine if a name corresponds to a sampler object
gl:isSampler returns ?GL_TRUE if Id is currently the name of a sampler object. If
Id is zero, or is a non-zero value that is not currently the name of a sampler
object, or if an error occurs, gl:isSampler returns ?GL_FALSE.
See external documentation.
bindSampler(Unit, Sampler) -> ok
Types:
Unit = integer()
Sampler = integer()
Bind a named sampler to a texturing target
gl:bindSampler binds Sampler to the texture unit at index Unit . Sampler must be
zero or the name of a sampler object previously returned from a call to
gl:genSamplers/1 . Unit must be less than the value of
?GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS.
See external documentation.
samplerParameteri(Sampler, Pname, Param) -> ok
Types:
Sampler = integer()
Pname = enum()
Param = integer()
Set sampler parameters
gl:samplerParameter assigns the value or values in Params to the sampler parameter
specified as Pname . Sampler specifies the sampler object to be modified, and must
be the name of a sampler object previously returned from a call to gl:genSamplers/1
. The following symbols are accepted in Pname :
See external documentation.
samplerParameteriv(Sampler, Pname, Param) -> ok
Types:
Sampler = integer()
Pname = enum()
Param = [integer()]
See samplerParameteri/3
samplerParameterf(Sampler, Pname, Param) -> ok
Types:
Sampler = integer()
Pname = enum()
Param = float()
See samplerParameteri/3
samplerParameterfv(Sampler, Pname, Param) -> ok
Types:
Sampler = integer()
Pname = enum()
Param = [float()]
See samplerParameteri/3
samplerParameterIiv(Sampler, Pname, Param) -> ok
Types:
Sampler = integer()
Pname = enum()
Param = [integer()]
See samplerParameteri/3
samplerParameterIuiv(Sampler, Pname, Param) -> ok
Types:
Sampler = integer()
Pname = enum()
Param = [integer()]
glSamplerParameterI
See external documentation.
getSamplerParameteriv(Sampler, Pname) -> [integer()]
Types:
Sampler = integer()
Pname = enum()
Return sampler parameter values
gl:getSamplerParameter returns in Params the value or values of the sampler
parameter specified as Pname . Sampler defines the target sampler, and must be the
name of an existing sampler object, returned from a previous call to
gl:genSamplers/1 . Pname accepts the same symbols as gl:samplerParameteri/3 , with
the same interpretations:
See external documentation.
getSamplerParameterIiv(Sampler, Pname) -> [integer()]
Types:
Sampler = integer()
Pname = enum()
See getSamplerParameteriv/2
getSamplerParameterfv(Sampler, Pname) -> [float()]
Types:
Sampler = integer()
Pname = enum()
See getSamplerParameteriv/2
getSamplerParameterIuiv(Sampler, Pname) -> [integer()]
Types:
Sampler = integer()
Pname = enum()
glGetSamplerParameterI
See external documentation.
queryCounter(Id, Target) -> ok
Types:
Id = integer()
Target = enum()
Record the GL time into a query object after all previous commands have reached the
GL server but have not yet necessarily executed.
gl:queryCounter causes the GL to record the current time into the query object
named Id . Target must be ?GL_TIMESTAMP. The time is recorded after all previous
commands on the GL client and server state and the framebuffer have been fully
realized. When the time is recorded, the query result for that object is marked
available. gl:queryCounter timer queries can be used within a gl:beginQuery/2 /
gl:beginQuery/2 block where the target is ?GL_TIME_ELAPSED and it does not affect
the result of that query object.
See external documentation.
getQueryObjecti64v(Id, Pname) -> integer()
Types:
Id = integer()
Pname = enum()
glGetQueryObjecti64v
See external documentation.
getQueryObjectui64v(Id, Pname) -> integer()
Types:
Id = integer()
Pname = enum()
glGetQueryObjectui64v
See external documentation.
drawArraysIndirect(Mode, Indirect) -> ok
Types:
Mode = enum()
Indirect = offset() | mem()
Render primitives from array data, taking parameters from memory
gl:drawArraysIndirect specifies multiple geometric primitives with very few
subroutine calls. gl:drawArraysIndirect behaves similarly to
gl:drawArraysInstancedBaseInstance/5 , execept that the parameters to
gl:drawArraysInstancedBaseInstance/5 are stored in memory at the address given by
Indirect .
See external documentation.
drawElementsIndirect(Mode, Type, Indirect) -> ok
Types:
Mode = enum()
Type = enum()
Indirect = offset() | mem()
Render indexed primitives from array data, taking parameters from memory
gl:drawElementsIndirect specifies multiple indexed geometric primitives with very
few subroutine calls. gl:drawElementsIndirect behaves similarly to
gl:drawElementsInstancedBaseVertexBaseInstance/7 , execpt that the parameters to
gl:drawElementsInstancedBaseVertexBaseInstance/7 are stored in memory at the
address given by Indirect .
See external documentation.
uniform1d(Location, X) -> ok
Types:
Location = integer()
X = float()
See uniform1f/2
uniform2d(Location, X, Y) -> ok
Types:
Location = integer()
X = float()
Y = float()
See uniform1f/2
uniform3d(Location, X, Y, Z) -> ok
Types:
Location = integer()
X = float()
Y = float()
Z = float()
See uniform1f/2
uniform4d(Location, X, Y, Z, W) -> ok
Types:
Location = integer()
X = float()
Y = float()
Z = float()
W = float()
See uniform1f/2
uniform1dv(Location, Value) -> ok
Types:
Location = integer()
Value = [float()]
See uniform1f/2
uniform2dv(Location, Value) -> ok
Types:
Location = integer()
Value = [{float(), float()}]
See uniform1f/2
uniform3dv(Location, Value) -> ok
Types:
Location = integer()
Value = [{float(), float(), float()}]
See uniform1f/2
uniform4dv(Location, Value) -> ok
Types:
Location = integer()
Value = [{float(), float(), float(), float()}]
See uniform1f/2
uniformMatrix2dv(Location, Transpose, Value) -> ok
Types:
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float()}]
See uniform1f/2
uniformMatrix3dv(Location, Transpose, Value) -> ok
Types:
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float(), float(),
float(), float()}]
See uniform1f/2
uniformMatrix4dv(Location, Transpose, Value) -> ok
Types:
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float(), float(),
float(), float(), float(), float(), float(), float(), float(), float(),
float()}]
See uniform1f/2
uniformMatrix2x3dv(Location, Transpose, Value) -> ok
Types:
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float()}]
See uniform1f/2
uniformMatrix2x4dv(Location, Transpose, Value) -> ok
Types:
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float(), float(),
float()}]
See uniform1f/2
uniformMatrix3x2dv(Location, Transpose, Value) -> ok
Types:
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float()}]
See uniform1f/2
uniformMatrix3x4dv(Location, Transpose, Value) -> ok
Types:
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float(), float(),
float(), float(), float(), float(), float()}]
See uniform1f/2
uniformMatrix4x2dv(Location, Transpose, Value) -> ok
Types:
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float(), float(),
float()}]
See uniform1f/2
uniformMatrix4x3dv(Location, Transpose, Value) -> ok
Types:
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float(), float(),
float(), float(), float(), float(), float()}]
See uniform1f/2
getUniformdv(Program, Location) -> matrix()
Types:
Program = integer()
Location = integer()
See getUniformfv/2
getSubroutineUniformLocation(Program, Shadertype, Name) -> integer()
Types:
Program = integer()
Shadertype = enum()
Name = string()
Retrieve the location of a subroutine uniform of a given shader stage within a
program
gl:getSubroutineUniformLocation returns the location of the subroutine uniform
variable Name in the shader stage of type Shadertype attached to Program , with
behavior otherwise identical to gl:getUniformLocation/2 .
See external documentation.
getSubroutineIndex(Program, Shadertype, Name) -> integer()
Types:
Program = integer()
Shadertype = enum()
Name = string()
Retrieve the index of a subroutine uniform of a given shader stage within a program
gl:getSubroutineIndex returns the index of a subroutine uniform within a shader
stage attached to a program object. Program contains the name of the program to
which the shader is attached. Shadertype specifies the stage from which to query
shader subroutine index. Name contains the null-terminated name of the subroutine
uniform whose name to query.
See external documentation.
getActiveSubroutineUniformName(Program, Shadertype, Index, Bufsize) -> string()
Types:
Program = integer()
Shadertype = enum()
Index = integer()
Bufsize = integer()
Query the name of an active shader subroutine uniform
gl:getActiveSubroutineUniformName retrieves the name of an active shader subroutine
uniform. Program contains the name of the program containing the uniform.
Shadertype specifies the stage for which which the uniform location, given by Index
, is valid. Index must be between zero and the value of
?GL_ACTIVE_SUBROUTINE_UNIFORMS minus one for the shader stage.
See external documentation.
getActiveSubroutineName(Program, Shadertype, Index, Bufsize) -> string()
Types:
Program = integer()
Shadertype = enum()
Index = integer()
Bufsize = integer()
Query the name of an active shader subroutine
gl:getActiveSubroutineName queries the name of an active shader subroutine uniform
from the program object given in Program . Index specifies the index of the shader
subroutine uniform within the shader stage given by Stage , and must between zero
and the value of ?GL_ACTIVE_SUBROUTINES minus one for the shader stage.
See external documentation.
uniformSubroutinesuiv(Shadertype, Indices) -> ok
Types:
Shadertype = enum()
Indices = [integer()]
Load active subroutine uniforms
gl:uniformSubroutines loads all active subroutine uniforms for shader stage
Shadertype of the current program with subroutine indices from Indices , storing
Indices[i] into the uniform at location I . Count must be equal to the value of
?GL_ACTIVE_SUBROUTINE_UNIFORM_LOCATIONS for the program currently in use at shader
stage Shadertype . Furthermore, all values in Indices must be less than the value
of ?GL_ACTIVE_SUBROUTINES for the shader stage.
See external documentation.
getUniformSubroutineuiv(Shadertype, Location) -> {integer(), integer(), integer(),
integer(), integer(), integer(), integer(), integer(), integer(), integer(), integer(),
integer(), integer(), integer(), integer(), integer()}
Types:
Shadertype = enum()
Location = integer()
Retrieve the value of a subroutine uniform of a given shader stage of the current
program
gl:getUniformSubroutine retrieves the value of the subroutine uniform at location
Location for shader stage Shadertype of the current program. Location must be less
than the value of ?GL_ACTIVE_SUBROUTINE_UNIFORM_LOCATIONS for the shader currently
in use at shader stage Shadertype . The value of the subroutine uniform is returned
in Values .
See external documentation.
getProgramStageiv(Program, Shadertype, Pname) -> integer()
Types:
Program = integer()
Shadertype = enum()
Pname = enum()
Retrieve properties of a program object corresponding to a specified shader stage
gl:getProgramStage queries a parameter of a shader stage attached to a program
object. Program contains the name of the program to which the shader is attached.
Shadertype specifies the stage from which to query the parameter. Pname specifies
which parameter should be queried. The value or values of the parameter to be
queried is returned in the variable whose address is given in Values .
See external documentation.
patchParameteri(Pname, Value) -> ok
Types:
Pname = enum()
Value = integer()
Specifies the parameters for patch primitives
gl:patchParameter specifies the parameters that will be used for patch primitives.
Pname specifies the parameter to modify and must be either ?GL_PATCH_VERTICES,
?GL_PATCH_DEFAULT_OUTER_LEVEL or ?GL_PATCH_DEFAULT_INNER_LEVEL. For
gl:patchParameteri, Value specifies the new value for the parameter specified by
Pname . For gl:patchParameterfv, Values specifies the address of an array
containing the new values for the parameter specified by Pname .
See external documentation.
patchParameterfv(Pname, Values) -> ok
Types:
Pname = enum()
Values = [float()]
See patchParameteri/2
bindTransformFeedback(Target, Id) -> ok
Types:
Target = enum()
Id = integer()
Bind a transform feedback object
gl:bindTransformFeedback binds the transform feedback object with name Id to the
current GL state. Id must be a name previously returned from a call to
gl:genTransformFeedbacks/1 . If Id has not previously been bound, a new transform
feedback object with name Id and initialized with with the default transform state
vector is created.
See external documentation.
deleteTransformFeedbacks(Ids) -> ok
Types:
Ids = [integer()]
Delete transform feedback objects
gl:deleteTransformFeedbacks deletes the N transform feedback objects whose names
are stored in the array Ids . Unused names in Ids are ignored, as is the name zero.
After a transform feedback object is deleted, its name is again unused and it has
no contents. If an active transform feedback object is deleted, its name
immediately becomes unused, but the underlying object is not deleted until it is no
longer active.
See external documentation.
genTransformFeedbacks(N) -> [integer()]
Types:
N = integer()
Reserve transform feedback object names
gl:genTransformFeedbacks returns N previously unused transform feedback object
names in Ids . These names are marked as used, for the purposes of
gl:genTransformFeedbacks only, but they acquire transform feedback state only when
they are first bound.
See external documentation.
isTransformFeedback(Id) -> 0 | 1
Types:
Id = integer()
Determine if a name corresponds to a transform feedback object
gl:isTransformFeedback returns ?GL_TRUE if Id is currently the name of a transform
feedback object. If Id is zero, or if ?id is not the name of a transform feedback
object, or if an error occurs, gl:isTransformFeedback returns ?GL_FALSE. If Id is a
name returned by gl:genTransformFeedbacks/1 , but that has not yet been bound
through a call to gl:bindTransformFeedback/2 , then the name is not a transform
feedback object and gl:isTransformFeedback returns ?GL_FALSE .
See external documentation.
pauseTransformFeedback() -> ok
Pause transform feedback operations
gl:pauseTransformFeedback pauses transform feedback operations on the currently
active transform feedback object. When transform feedback operations are paused,
transform feedback is still considered active and changing most transform feedback
state related to the object results in an error. However, a new transform feedback
object may be bound while transform feedback is paused.
See external documentation.
resumeTransformFeedback() -> ok
Resume transform feedback operations
gl:resumeTransformFeedback resumes transform feedback operations on the currently
active transform feedback object. When transform feedback operations are paused,
transform feedback is still considered active and changing most transform feedback
state related to the object results in an error. However, a new transform feedback
object may be bound while transform feedback is paused.
See external documentation.
drawTransformFeedback(Mode, Id) -> ok
Types:
Mode = enum()
Id = integer()
Render primitives using a count derived from a transform feedback object
gl:drawTransformFeedback draws primitives of a type specified by Mode using a count
retrieved from the transform feedback specified by Id . Calling
gl:drawTransformFeedback is equivalent to calling gl:drawArrays/3 with Mode as
specified, First set to zero, and Count set to the number of vertices captured on
vertex stream zero the last time transform feedback was active on the transform
feedback object named by Id .
See external documentation.
drawTransformFeedbackStream(Mode, Id, Stream) -> ok
Types:
Mode = enum()
Id = integer()
Stream = integer()
Render primitives using a count derived from a specifed stream of a transform
feedback object
gl:drawTransformFeedbackStream draws primitives of a type specified by Mode using a
count retrieved from the transform feedback stream specified by Stream of the
transform feedback object specified by Id . Calling gl:drawTransformFeedbackStream
is equivalent to calling gl:drawArrays/3 with Mode as specified, First set to zero,
and Count set to the number of vertices captured on vertex stream Stream the last
time transform feedback was active on the transform feedback object named by Id .
See external documentation.
beginQueryIndexed(Target, Index, Id) -> ok
Types:
Target = enum()
Index = integer()
Id = integer()
glBeginQueryIndexe
See external documentation.
endQueryIndexed(Target, Index) -> ok
Types:
Target = enum()
Index = integer()
Delimit the boundaries of a query object on an indexed target
gl:beginQueryIndexed and gl:endQueryIndexed/2 delimit the boundaries of a query
object. Query must be a name previously returned from a call to gl:genQueries/1 .
If a query object with name Id does not yet exist it is created with the type
determined by Target . Target must be one of ?GL_SAMPLES_PASSED,
?GL_ANY_SAMPLES_PASSED , ?GL_PRIMITIVES_GENERATED,
?GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN, or ?GL_TIME_ELAPSED . The behavior of
the query object depends on its type and is as follows.
See external documentation.
getQueryIndexediv(Target, Index, Pname) -> integer()
Types:
Target = enum()
Index = integer()
Pname = enum()
Return parameters of an indexed query object target
gl:getQueryIndexediv returns in Params a selected parameter of the indexed query
object target specified by Target and Index . Index specifies the index of the
query object target and must be between zero and a target-specific maxiumum.
See external documentation.
releaseShaderCompiler() -> ok
Release resources consumed by the implementation's shader compiler
gl:releaseShaderCompiler provides a hint to the implementation that it may free
internal resources associated with its shader compiler. gl:compileShader/1 may
subsequently be called and the implementation may at that time reallocate resources
previously freed by the call to gl:releaseShaderCompiler.
See external documentation.
shaderBinary(Shaders, Binaryformat, Binary) -> ok
Types:
Shaders = [integer()]
Binaryformat = enum()
Binary = binary()
Load pre-compiled shader binaries
gl:shaderBinary loads pre-compiled shader binary code into the Count shader objects
whose handles are given in Shaders . Binary points to Length bytes of binary shader
code stored in client memory. BinaryFormat specifies the format of the pre-compiled
code.
See external documentation.
getShaderPrecisionFormat(Shadertype, Precisiontype) -> {Range::{integer(), integer()},
Precision::integer()}
Types:
Shadertype = enum()
Precisiontype = enum()
Retrieve the range and precision for numeric formats supported by the shader
compiler
gl:getShaderPrecisionFormat retrieves the numeric range and precision for the
implementation's representation of quantities in different numeric formats in
specified shader type. ShaderType specifies the type of shader for which the
numeric precision and range is to be retrieved and must be one of ?GL_VERTEX_SHADER
or ?GL_FRAGMENT_SHADER. PrecisionType specifies the numeric format to query and
must be one of ?GL_LOW_FLOAT, ?GL_MEDIUM_FLOAT ?GL_HIGH_FLOAT, ?GL_LOW_INT,
?GL_MEDIUM_INT, or ?GL_HIGH_INT.
See external documentation.
depthRangef(N, F) -> ok
Types:
N = clamp()
F = clamp()
See depthRange/2
clearDepthf(D) -> ok
Types:
D = clamp()
glClearDepthf
See external documentation.
getProgramBinary(Program, BufSize) -> {BinaryFormat::enum(), Binary::binary()}
Types:
Program = integer()
BufSize = integer()
Return a binary representation of a program object's compiled and linked executable
source
gl:getProgramBinary returns a binary representation of the compiled and linked
executable for Program into the array of bytes whose address is specified in Binary
. The maximum number of bytes that may be written into Binary is specified by
BufSize . If the program binary is greater in size than BufSize bytes, then an
error is generated, otherwise the actual number of bytes written into Binary is
returned in the variable whose address is given by Length . If Length is ?NULL,
then no length is returned.
See external documentation.
programBinary(Program, BinaryFormat, Binary) -> ok
Types:
Program = integer()
BinaryFormat = enum()
Binary = binary()
Load a program object with a program binary
gl:programBinary loads a program object with a program binary previously returned
from gl:getProgramBinary/2 . BinaryFormat and Binary must be those returned by a
previous call to gl:getProgramBinary/2 , and Length must be the length returned by
gl:getProgramBinary/2 , or by gl:getProgramiv/2 when called with Pname set to
?GL_PROGRAM_BINARY_LENGTH. If these conditions are not met, loading the program
binary will fail and Program 's ?GL_LINK_STATUS will be set to ?GL_FALSE.
See external documentation.
programParameteri(Program, Pname, Value) -> ok
Types:
Program = integer()
Pname = enum()
Value = integer()
Specify a parameter for a program object
gl:programParameter specifies a new value for the parameter nameed by Pname for the
program object Program .
See external documentation.
useProgramStages(Pipeline, Stages, Program) -> ok
Types:
Pipeline = integer()
Stages = integer()
Program = integer()
Bind stages of a program object to a program pipeline
gl:useProgramStages binds executables from a program object associated with a
specified set of shader stages to the program pipeline object given by Pipeline .
Pipeline specifies the program pipeline object to which to bind the executables.
Stages contains a logical combination of bits indicating the shader stages to use
within Program with the program pipeline object Pipeline . Stages must be a logical
combination of ?GL_VERTEX_SHADER_BIT, ?GL_TESS_CONTROL_SHADER_BIT,
?GL_TESS_EVALUATION_SHADER_BIT , ?GL_GEOMETRY_SHADER_BIT, and
?GL_FRAGMENT_SHADER_BIT. Additionally, the special value ?GL_ALL_SHADER_BITS may be
specified to indicate that all executables contained in Program should be installed
in Pipeline .
See external documentation.
activeShaderProgram(Pipeline, Program) -> ok
Types:
Pipeline = integer()
Program = integer()
Set the active program object for a program pipeline object
gl:activeShaderProgram sets the linked program named by Program to be the active
program for the program pipeline object Pipeline . The active program in the active
program pipeline object is the target of calls to gl:uniform1f/2 when no program
has been made current through a call to gl:useProgram/1 .
See external documentation.
createShaderProgramv(Type, Strings) -> integer()
Types:
Type = enum()
Strings = iolist()
glCreateShaderProgramv
See external documentation.
bindProgramPipeline(Pipeline) -> ok
Types:
Pipeline = integer()
Bind a program pipeline to the current context
gl:bindProgramPipeline binds a program pipeline object to the current context.
Pipeline must be a name previously returned from a call to gl:genProgramPipelines/1
. If no program pipeline exists with name Pipeline then a new pipeline object is
created with that name and initialized to the default state vector.
See external documentation.
deleteProgramPipelines(Pipelines) -> ok
Types:
Pipelines = [integer()]
Delete program pipeline objects
gl:deleteProgramPipelines deletes the N program pipeline objects whose names are
stored in the array Pipelines . Unused names in Pipelines are ignored, as is the
name zero. After a program pipeline object is deleted, its name is again unused and
it has no contents. If program pipeline object that is currently bound is deleted,
the binding for that object reverts to zero and no program pipeline object becomes
current.
See external documentation.
genProgramPipelines(N) -> [integer()]
Types:
N = integer()
Reserve program pipeline object names
gl:genProgramPipelines returns N previously unused program pipeline object names in
Pipelines . These names are marked as used, for the purposes of
gl:genProgramPipelines only, but they acquire program pipeline state only when they
are first bound.
See external documentation.
isProgramPipeline(Pipeline) -> 0 | 1
Types:
Pipeline = integer()
Determine if a name corresponds to a program pipeline object
gl:isProgramPipeline returns ?GL_TRUE if Pipeline is currently the name of a
program pipeline object. If Pipeline is zero, or if ?pipeline is not the name of a
program pipeline object, or if an error occurs, gl:isProgramPipeline returns
?GL_FALSE. If Pipeline is a name returned by gl:genProgramPipelines/1 , but that
has not yet been bound through a call to gl:bindProgramPipeline/1 , then the name
is not a program pipeline object and gl:isProgramPipeline returns ?GL_FALSE .
See external documentation.
getProgramPipelineiv(Pipeline, Pname) -> integer()
Types:
Pipeline = integer()
Pname = enum()
Retrieve properties of a program pipeline object
gl:getProgramPipelineiv retrieves the value of a property of the program pipeline
object Pipeline . Pname specifies the name of the parameter whose value to
retrieve. The value of the parameter is written to the variable whose address is
given by Params .
See external documentation.
programUniform1i(Program, Location, V0) -> ok
Types:
Program = integer()
Location = integer()
V0 = integer()
Specify the value of a uniform variable for a specified program object
gl:programUniform modifies the value of a uniform variable or a uniform variable
array. The location of the uniform variable to be modified is specified by Location
, which should be a value returned by gl:getUniformLocation/2 . gl:programUniform
operates on the program object specified by Program .
See external documentation.
programUniform1iv(Program, Location, Value) -> ok
Types:
Program = integer()
Location = integer()
Value = [integer()]
See programUniform1i/3
programUniform1f(Program, Location, V0) -> ok
Types:
Program = integer()
Location = integer()
V0 = float()
See programUniform1i/3
programUniform1fv(Program, Location, Value) -> ok
Types:
Program = integer()
Location = integer()
Value = [float()]
See programUniform1i/3
programUniform1d(Program, Location, V0) -> ok
Types:
Program = integer()
Location = integer()
V0 = float()
See programUniform1i/3
programUniform1dv(Program, Location, Value) -> ok
Types:
Program = integer()
Location = integer()
Value = [float()]
See programUniform1i/3
programUniform1ui(Program, Location, V0) -> ok
Types:
Program = integer()
Location = integer()
V0 = integer()
See programUniform1i/3
programUniform1uiv(Program, Location, Value) -> ok
Types:
Program = integer()
Location = integer()
Value = [integer()]
See programUniform1i/3
programUniform2i(Program, Location, V0, V1) -> ok
Types:
Program = integer()
Location = integer()
V0 = integer()
V1 = integer()
See programUniform1i/3
programUniform2iv(Program, Location, Value) -> ok
Types:
Program = integer()
Location = integer()
Value = [{integer(), integer()}]
See programUniform1i/3
programUniform2f(Program, Location, V0, V1) -> ok
Types:
Program = integer()
Location = integer()
V0 = float()
V1 = float()
See programUniform1i/3
programUniform2fv(Program, Location, Value) -> ok
Types:
Program = integer()
Location = integer()
Value = [{float(), float()}]
See programUniform1i/3
programUniform2d(Program, Location, V0, V1) -> ok
Types:
Program = integer()
Location = integer()
V0 = float()
V1 = float()
See programUniform1i/3
programUniform2dv(Program, Location, Value) -> ok
Types:
Program = integer()
Location = integer()
Value = [{float(), float()}]
See programUniform1i/3
programUniform2ui(Program, Location, V0, V1) -> ok
Types:
Program = integer()
Location = integer()
V0 = integer()
V1 = integer()
See programUniform1i/3
programUniform2uiv(Program, Location, Value) -> ok
Types:
Program = integer()
Location = integer()
Value = [{integer(), integer()}]
See programUniform1i/3
programUniform3i(Program, Location, V0, V1, V2) -> ok
Types:
Program = integer()
Location = integer()
V0 = integer()
V1 = integer()
V2 = integer()
See programUniform1i/3
programUniform3iv(Program, Location, Value) -> ok
Types:
Program = integer()
Location = integer()
Value = [{integer(), integer(), integer()}]
See programUniform1i/3
programUniform3f(Program, Location, V0, V1, V2) -> ok
Types:
Program = integer()
Location = integer()
V0 = float()
V1 = float()
V2 = float()
See programUniform1i/3
programUniform3fv(Program, Location, Value) -> ok
Types:
Program = integer()
Location = integer()
Value = [{float(), float(), float()}]
See programUniform1i/3
programUniform3d(Program, Location, V0, V1, V2) -> ok
Types:
Program = integer()
Location = integer()
V0 = float()
V1 = float()
V2 = float()
See programUniform1i/3
programUniform3dv(Program, Location, Value) -> ok
Types:
Program = integer()
Location = integer()
Value = [{float(), float(), float()}]
See programUniform1i/3
programUniform3ui(Program, Location, V0, V1, V2) -> ok
Types:
Program = integer()
Location = integer()
V0 = integer()
V1 = integer()
V2 = integer()
See programUniform1i/3
programUniform3uiv(Program, Location, Value) -> ok
Types:
Program = integer()
Location = integer()
Value = [{integer(), integer(), integer()}]
See programUniform1i/3
programUniform4i(Program, Location, V0, V1, V2, V3) -> ok
Types:
Program = integer()
Location = integer()
V0 = integer()
V1 = integer()
V2 = integer()
V3 = integer()
See programUniform1i/3
programUniform4iv(Program, Location, Value) -> ok
Types:
Program = integer()
Location = integer()
Value = [{integer(), integer(), integer(), integer()}]
See programUniform1i/3
programUniform4f(Program, Location, V0, V1, V2, V3) -> ok
Types:
Program = integer()
Location = integer()
V0 = float()
V1 = float()
V2 = float()
V3 = float()
See programUniform1i/3
programUniform4fv(Program, Location, Value) -> ok
Types:
Program = integer()
Location = integer()
Value = [{float(), float(), float(), float()}]
See programUniform1i/3
programUniform4d(Program, Location, V0, V1, V2, V3) -> ok
Types:
Program = integer()
Location = integer()
V0 = float()
V1 = float()
V2 = float()
V3 = float()
See programUniform1i/3
programUniform4dv(Program, Location, Value) -> ok
Types:
Program = integer()
Location = integer()
Value = [{float(), float(), float(), float()}]
See programUniform1i/3
programUniform4ui(Program, Location, V0, V1, V2, V3) -> ok
Types:
Program = integer()
Location = integer()
V0 = integer()
V1 = integer()
V2 = integer()
V3 = integer()
See programUniform1i/3
programUniform4uiv(Program, Location, Value) -> ok
Types:
Program = integer()
Location = integer()
Value = [{integer(), integer(), integer(), integer()}]
See programUniform1i/3
programUniformMatrix2fv(Program, Location, Transpose, Value) -> ok
Types:
Program = integer()
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float()}]
See programUniform1i/3
programUniformMatrix3fv(Program, Location, Transpose, Value) -> ok
Types:
Program = integer()
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float(), float(),
float(), float()}]
See programUniform1i/3
programUniformMatrix4fv(Program, Location, Transpose, Value) -> ok
Types:
Program = integer()
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float(), float(),
float(), float(), float(), float(), float(), float(), float(), float(),
float()}]
See programUniform1i/3
programUniformMatrix2dv(Program, Location, Transpose, Value) -> ok
Types:
Program = integer()
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float()}]
See programUniform1i/3
programUniformMatrix3dv(Program, Location, Transpose, Value) -> ok
Types:
Program = integer()
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float(), float(),
float(), float()}]
See programUniform1i/3
programUniformMatrix4dv(Program, Location, Transpose, Value) -> ok
Types:
Program = integer()
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float(), float(),
float(), float(), float(), float(), float(), float(), float(), float(),
float()}]
See programUniform1i/3
programUniformMatrix2x3fv(Program, Location, Transpose, Value) -> ok
Types:
Program = integer()
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float()}]
See programUniform1i/3
programUniformMatrix3x2fv(Program, Location, Transpose, Value) -> ok
Types:
Program = integer()
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float()}]
See programUniform1i/3
programUniformMatrix2x4fv(Program, Location, Transpose, Value) -> ok
Types:
Program = integer()
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float(), float(),
float()}]
See programUniform1i/3
programUniformMatrix4x2fv(Program, Location, Transpose, Value) -> ok
Types:
Program = integer()
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float(), float(),
float()}]
See programUniform1i/3
programUniformMatrix3x4fv(Program, Location, Transpose, Value) -> ok
Types:
Program = integer()
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float(), float(),
float(), float(), float(), float(), float()}]
See programUniform1i/3
programUniformMatrix4x3fv(Program, Location, Transpose, Value) -> ok
Types:
Program = integer()
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float(), float(),
float(), float(), float(), float(), float()}]
See programUniform1i/3
programUniformMatrix2x3dv(Program, Location, Transpose, Value) -> ok
Types:
Program = integer()
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float()}]
See programUniform1i/3
programUniformMatrix3x2dv(Program, Location, Transpose, Value) -> ok
Types:
Program = integer()
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float()}]
See programUniform1i/3
programUniformMatrix2x4dv(Program, Location, Transpose, Value) -> ok
Types:
Program = integer()
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float(), float(),
float()}]
See programUniform1i/3
programUniformMatrix4x2dv(Program, Location, Transpose, Value) -> ok
Types:
Program = integer()
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float(), float(),
float()}]
See programUniform1i/3
programUniformMatrix3x4dv(Program, Location, Transpose, Value) -> ok
Types:
Program = integer()
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float(), float(),
float(), float(), float(), float(), float()}]
See programUniform1i/3
programUniformMatrix4x3dv(Program, Location, Transpose, Value) -> ok
Types:
Program = integer()
Location = integer()
Transpose = 0 | 1
Value = [{float(), float(), float(), float(), float(), float(), float(),
float(), float(), float(), float(), float()}]
See programUniform1i/3
validateProgramPipeline(Pipeline) -> ok
Types:
Pipeline = integer()
Validate a program pipeline object against current GL state
gl:validateProgramPipeline instructs the implementation to validate the shader
executables contained in Pipeline against the current GL state. The implementation
may use this as an opportunity to perform any internal shader modifications that
may be required to ensure correct operation of the installed shaders given the
current GL state.
See external documentation.
getProgramPipelineInfoLog(Pipeline, BufSize) -> string()
Types:
Pipeline = integer()
BufSize = integer()
Retrieve the info log string from a program pipeline object
gl:getProgramPipelineInfoLog retrieves the info log for the program pipeline object
Pipeline . The info log, including its null terminator, is written into the array
of characters whose address is given by InfoLog . The maximum number of characters
that may be written into InfoLog is given by BufSize , and the actual number of
characters written into InfoLog is returned in the integer whose address is given
by Length . If Length is ?NULL, no length is returned.
See external documentation.
vertexAttribL1d(Index, X) -> ok
Types:
Index = integer()
X = float()
glVertexAttribL
See external documentation.
vertexAttribL2d(Index, X, Y) -> ok
Types:
Index = integer()
X = float()
Y = float()
glVertexAttribL
See external documentation.
vertexAttribL3d(Index, X, Y, Z) -> ok
Types:
Index = integer()
X = float()
Y = float()
Z = float()
glVertexAttribL
See external documentation.
vertexAttribL4d(Index, X, Y, Z, W) -> ok
Types:
Index = integer()
X = float()
Y = float()
Z = float()
W = float()
glVertexAttribL
See external documentation.
vertexAttribL1dv(Index::integer(), V) -> ok
Types:
V = {X::float()}
Equivalent to vertexAttribL1d(Index, X).
vertexAttribL2dv(Index::integer(), V) -> ok
Types:
V = {X::float(), Y::float()}
Equivalent to vertexAttribL2d(Index, X, Y).
vertexAttribL3dv(Index::integer(), V) -> ok
Types:
V = {X::float(), Y::float(), Z::float()}
Equivalent to vertexAttribL3d(Index, X, Y, Z).
vertexAttribL4dv(Index::integer(), V) -> ok
Types:
V = {X::float(), Y::float(), Z::float(), W::float()}
Equivalent to vertexAttribL4d(Index, X, Y, Z, W).
vertexAttribLPointer(Index, Size, Type, Stride, Pointer) -> ok
Types:
Index = integer()
Size = integer()
Type = enum()
Stride = integer()
Pointer = offset() | mem()
glVertexAttribLPointer
See external documentation.
getVertexAttribLdv(Index, Pname) -> {float(), float(), float(), float()}
Types:
Index = integer()
Pname = enum()
glGetVertexAttribL
See external documentation.
viewportArrayv(First, V) -> ok
Types:
First = integer()
V = [{float(), float(), float(), float()}]
glViewportArrayv
See external documentation.
viewportIndexedf(Index, X, Y, W, H) -> ok
Types:
Index = integer()
X = float()
Y = float()
W = float()
H = float()
Set a specified viewport
gl:viewportIndexedf and gl:viewportIndexedfv specify the parameters for a single
viewport. Index specifies the index of the viewport to modify. Index must be less
than the value of ?GL_MAX_VIEWPORTS. For gl:viewportIndexedf, X , Y , W , and H
specify the left, bottom, width and height of the viewport in pixels, respectively.
For gl:viewportIndexedfv, V contains the address of an array of floating point
values specifying the left ( x), bottom ( y), width ( w), and height ( h) of each
viewport, in that order. x and y give the location of the viewport's lower left
corner, and w and h give the width and height of the viewport, respectively. The
viewport specifies the affine transformation of x and y from normalized device
coordinates to window coordinates. Let (x nd y nd) be normalized device
coordinates. Then the window coordinates (x w y w) are computed as follows:
See external documentation.
viewportIndexedfv(Index, V) -> ok
Types:
Index = integer()
V = {float(), float(), float(), float()}
See viewportIndexedf/5
scissorArrayv(First, V) -> ok
Types:
First = integer()
V = [{integer(), integer(), integer(), integer()}]
glScissorArrayv
See external documentation.
scissorIndexed(Index, Left, Bottom, Width, Height) -> ok
Types:
Index = integer()
Left = integer()
Bottom = integer()
Width = integer()
Height = integer()
glScissorIndexe
See external documentation.
scissorIndexedv(Index, V) -> ok
Types:
Index = integer()
V = {integer(), integer(), integer(), integer()}
glScissorIndexe
See external documentation.
depthRangeArrayv(First, V) -> ok
Types:
First = integer()
V = [{clamp(), clamp()}]
glDepthRangeArrayv
See external documentation.
depthRangeIndexed(Index, N, F) -> ok
Types:
Index = integer()
N = clamp()
F = clamp()
glDepthRangeIndexe
See external documentation.
getFloati_v(Target, Index) -> [float()]
Types:
Target = enum()
Index = integer()
See getBooleanv/1
getDoublei_v(Target, Index) -> [float()]
Types:
Target = enum()
Index = integer()
See getBooleanv/1
debugMessageControlARB(Source, Type, Severity, Ids, Enabled) -> ok
Types:
Source = enum()
Type = enum()
Severity = enum()
Ids = [integer()]
Enabled = 0 | 1
glDebugMessageControlARB
See external documentation.
debugMessageInsertARB(Source, Type, Id, Severity, Buf) -> ok
Types:
Source = enum()
Type = enum()
Id = integer()
Severity = enum()
Buf = string()
glDebugMessageInsertARB
See external documentation.
getDebugMessageLogARB(Count, Bufsize) -> {integer(), Sources::[enum()], Types::[enum()],
Ids::[integer()], Severities::[enum()], MessageLog::[string()]}
Types:
Count = integer()
Bufsize = integer()
glGetDebugMessageLogARB
See external documentation.
getGraphicsResetStatusARB() -> enum()
glGetGraphicsResetStatusARB
See external documentation.
drawArraysInstancedBaseInstance(Mode, First, Count, Primcount, Baseinstance) -> ok
Types:
Mode = enum()
First = integer()
Count = integer()
Primcount = integer()
Baseinstance = integer()
Draw multiple instances of a range of elements with offset applied to instanced
attributes
gl:drawArraysInstancedBaseInstance behaves identically to gl:drawArrays/3 except
that Primcount instances of the range of elements are executed and the value of the
internal counter InstanceID advances for each iteration. InstanceID is an internal
32-bit integer counter that may be read by a vertex shader as ?gl_InstanceID .
See external documentation.
drawElementsInstancedBaseInstance(Mode, Count, Type, Indices, Primcount, Baseinstance) ->
ok
Types:
Mode = enum()
Count = integer()
Type = enum()
Indices = offset() | mem()
Primcount = integer()
Baseinstance = integer()
Draw multiple instances of a set of elements with offset applied to instanced
attributes
gl:drawElementsInstancedBaseInstance behaves identically to gl:drawElements/4
except that Primcount instances of the set of elements are executed and the value
of the internal counter InstanceID advances for each iteration. InstanceID is an
internal 32-bit integer counter that may be read by a vertex shader as
?gl_InstanceID .
See external documentation.
drawElementsInstancedBaseVertexBaseInstance(Mode, Count, Type, Indices, Primcount,
Basevertex, Baseinstance) -> ok
Types:
Mode = enum()
Count = integer()
Type = enum()
Indices = offset() | mem()
Primcount = integer()
Basevertex = integer()
Baseinstance = integer()
Render multiple instances of a set of primitives from array data with a per-element
offset
gl:drawElementsInstancedBaseVertexBaseInstance behaves identically to
gl:drawElementsInstanced/5 except that the ith element transferred by the
corresponding draw call will be taken from element Indices [i] + Basevertex of each
enabled array. If the resulting value is larger than the maximum value
representable by Type , it is as if the calculation were upconverted to 32-bit
unsigned integers (with wrapping on overflow conditions). The operation is
undefined if the sum would be negative. The Basevertex has no effect on the shader-
visible value of ?gl_VertexID.
See external documentation.
drawTransformFeedbackInstanced(Mode, Id, Primcount) -> ok
Types:
Mode = enum()
Id = integer()
Primcount = integer()
glDrawTransformFeedbackInstance
See external documentation.
drawTransformFeedbackStreamInstanced(Mode, Id, Stream, Primcount) -> ok
Types:
Mode = enum()
Id = integer()
Stream = integer()
Primcount = integer()
glDrawTransformFeedbackStreamInstance
See external documentation.
getInternalformativ(Target, Internalformat, Pname, BufSize) -> [integer()]
Types:
Target = enum()
Internalformat = enum()
Pname = enum()
BufSize = integer()
glGetInternalformat
See external documentation.
bindImageTexture(Unit, Texture, Level, Layered, Layer, Access, Format) -> ok
Types:
Unit = integer()
Texture = integer()
Level = integer()
Layered = 0 | 1
Layer = integer()
Access = enum()
Format = enum()
Bind a level of a texture to an image unit
gl:bindImageTexture binds a single level of a texture to an image unit for the
purpose of reading and writing it from shaders. Unit specifies the zero-based index
of the image unit to which to bind the texture level. Texture specifies the name of
an existing texture object to bind to the image unit. If Texture is zero, then any
existing binding to the image unit is broken. Level specifies the level of the
texture to bind to the image unit.
See external documentation.
memoryBarrier(Barriers) -> ok
Types:
Barriers = integer()
Defines a barrier ordering memory transactions
gl:memoryBarrier defines a barrier ordering the memory transactions issued prior to
the command relative to those issued after the barrier. For the purposes of this
ordering, memory transactions performed by shaders are considered to be issued by
the rendering command that triggered the execution of the shader. Barriers is a
bitfield indicating the set of operations that are synchronized with shader stores;
the bits used in Barriers are as follows:
See external documentation.
texStorage1D(Target, Levels, Internalformat, Width) -> ok
Types:
Target = enum()
Levels = integer()
Internalformat = enum()
Width = integer()
Simultaneously specify storage for all levels of a one-dimensional texture
gl:texStorage1D specifies the storage requirements for all levels of a one-
dimensional texture simultaneously. Once a texture is specified with this command,
the format and dimensions of all levels become immutable unless it is a proxy
texture. The contents of the image may still be modified, however, its storage
requirements may not change. Such a texture is referred to as an immutable-format
texture.
See external documentation.
texStorage2D(Target, Levels, Internalformat, Width, Height) -> ok
Types:
Target = enum()
Levels = integer()
Internalformat = enum()
Width = integer()
Height = integer()
Simultaneously specify storage for all levels of a two-dimensional or one-
dimensional array texture
gl:texStorage2D specifies the storage requirements for all levels of a two-
dimensional texture or one-dimensional texture array simultaneously. Once a texture
is specified with this command, the format and dimensions of all levels become
immutable unless it is a proxy texture. The contents of the image may still be
modified, however, its storage requirements may not change. Such a texture is
referred to as an immutable-format texture.
See external documentation.
texStorage3D(Target, Levels, Internalformat, Width, Height, Depth) -> ok
Types:
Target = enum()
Levels = integer()
Internalformat = enum()
Width = integer()
Height = integer()
Depth = integer()
Simultaneously specify storage for all levels of a three-dimensional, two-
dimensional array or cube-map array texture
gl:texStorage3D specifies the storage requirements for all levels of a three-
dimensional, two-dimensional array or cube-map array texture simultaneously. Once a
texture is specified with this command, the format and dimensions of all levels
become immutable unless it is a proxy texture. The contents of the image may still
be modified, however, its storage requirements may not change. Such a texture is
referred to as an immutable-format texture.
See external documentation.
depthBoundsEXT(Zmin, Zmax) -> ok
Types:
Zmin = clamp()
Zmax = clamp()
glDepthBoundsEXT
See external documentation.
stencilClearTagEXT(StencilTagBits, StencilClearTag) -> ok
Types:
StencilTagBits = integer()
StencilClearTag = integer()
glStencilClearTagEXT
See external documentation.
AUTHORS
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wx 1.8.3 gl(3erl)