glGet — return the value or values of a selected parameter
void glGetBooleanv( | GLenum | pname, |
GLboolean * | params) ; |
void glGetDoublev( | GLenum | pname, |
GLdouble * | params) ; |
void glGetFloatv( | GLenum | pname, |
GLfloat * | params) ; |
void glGetIntegerv( | GLenum | pname, |
GLint * | params) ; |
pname
Specifies the parameter value to be returned. The symbolic constants in the list below are accepted.
params
Returns the value or values of the specified 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.
Type conversion is performed if params
has a different type than
the state variable value being requested.
If glGetBooleanv
is called,
a floating-point (or integer) value is converted to GL_FALSE
if
and only if it is 0.0 (or 0).
Otherwise,
it is converted to GL_TRUE
.
If glGetIntegerv
is called, boolean values are returned as
GL_TRUE
or GL_FALSE
, and most floating-point values are
rounded to the nearest integer value. Floating-point colors and
normals, however, are returned with a linear mapping that maps 1.0 to
the most positive representable integer value
and
glGetFloatv
or glGetDoublev
is called,
boolean values are returned as GL_TRUE
or GL_FALSE
,
and integer values are converted to floating-point values.
The following symbolic constants are accepted by pname
:
GL_ACCUM_ALPHA_BITS
params
returns one value,
the number of alpha bitplanes in the accumulation buffer.
GL_ACCUM_BLUE_BITS
params
returns one value,
the number of blue bitplanes in the accumulation buffer.
GL_ACCUM_CLEAR_VALUE
params
returns four values:
the red, green, blue, and alpha values used to clear the accumulation buffer.
Integer values,
if requested,
are linearly mapped from the internal floating-point representation such
that 1.0 returns the most positive representable integer value,
and
GL_ACCUM_GREEN_BITS
params
returns one value,
the number of green bitplanes in the accumulation buffer.
GL_ACCUM_RED_BITS
params
returns one value,
the number of red bitplanes in the accumulation buffer.
GL_ACTIVE_TEXTURE
params
returns a single value indicating the active multitexture unit.
The initial value is GL_TEXTURE0
.
See glActiveTexture.
GL_ALIASED_POINT_SIZE_RANGE
params
returns two values,
the smallest and largest supported sizes for aliased points.
GL_ALIASED_LINE_WIDTH_RANGE
params
returns two values,
the smallest and largest supported widths for aliased lines.
GL_ALPHA_BIAS
params
returns one value,
the alpha bias factor used during pixel transfers. The initial value is 0.
See glPixelTransfer.
GL_ALPHA_BITS
params
returns one value,
the number of alpha bitplanes in each color buffer.
GL_ALPHA_SCALE
params
returns one value,
the alpha scale factor used
during pixel transfers. The initial value is 1.
See glPixelTransfer.
GL_ALPHA_TEST
params
returns a single boolean value indicating whether alpha testing
of fragments is enabled. The initial value is GL_FALSE
.
See glAlphaFunc.
GL_ALPHA_TEST_FUNC
params
returns one value,
the symbolic name of the alpha test function. The initial value is
GL_ALWAYS
.
See glAlphaFunc.
GL_ALPHA_TEST_REF
params
returns one value,
the reference value for the alpha test. The initial value is 0.
See glAlphaFunc.
An integer value,
if requested,
is linearly mapped from the internal floating-point representation such
that 1.0 returns the most positive representable integer value,
and
GL_ARRAY_BUFFER_BINDING
params
returns a single value, the name of the buffer object
currently bound to the target GL_ARRAY_BUFFER
. If no buffer object
is bound to this target, 0 is returned. The initial value is 0.
See glBindBuffer.
GL_ATTRIB_STACK_DEPTH
params
returns one value,
the depth of the attribute stack.
If the stack is empty,
0 is returned. The initial value is 0.
See glPushAttrib.
GL_AUTO_NORMAL
params
returns a single boolean value indicating whether 2D map evaluation
automatically generates surface normals. The initial value is GL_FALSE
.
See glMap2.
GL_AUX_BUFFERS
params
returns one value,
the number of auxiliary color buffers available.
GL_BLEND
params
returns a single boolean value indicating whether blending is
enabled. The initial value is GL_FALSE
.
See glBlendFunc.
GL_BLEND_COLOR
params
returns four values,
the red, green, blue, and alpha values which are the components of
the blend color.
See glBlendColor.
GL_BLEND_DST_ALPHA
params
returns one value,
the symbolic constant identifying the alpha destination blend
function. The initial value is GL_ZERO
.
See glBlendFunc and glBlendFuncSeparate.
GL_BLEND_DST_RGB
params
returns one value,
the symbolic constant identifying the RGB destination blend
function. The initial value is GL_ZERO
.
See glBlendFunc and glBlendFuncSeparate.
GL_BLEND_EQUATION_RGB
params
returns one value, a symbolic constant indicating whether
the RGB blend equation is GL_FUNC_ADD
, GL_FUNC_SUBTRACT
,
GL_FUNC_REVERSE_SUBTRACT
, GL_MIN
or GL_MAX
.
See glBlendEquationSeparate.
GL_BLEND_EQUATION_ALPHA
params
returns one value, a symbolic constant indicating whether
the Alpha blend equation is GL_FUNC_ADD
, GL_FUNC_SUBTRACT
,
GL_FUNC_REVERSE_SUBTRACT
, GL_MIN
or GL_MAX
.
See glBlendEquationSeparate.
GL_BLEND_SRC_ALPHA
params
returns one value,
the symbolic constant identifying the alpha source blend function. The initial
value is GL_ONE
.
See glBlendFunc and glBlendFuncSeparate.
GL_BLEND_SRC_RGB
params
returns one value,
the symbolic constant identifying the RGB source blend function. The initial
value is GL_ONE
.
See glBlendFunc and glBlendFuncSeparate.
GL_BLUE_BIAS
params
returns one value,
the blue bias factor used during pixel transfers. The initial value is 0.
See glPixelTransfer.
GL_BLUE_BITS
params
returns one value,
the number of blue bitplanes in each color buffer.
GL_BLUE_SCALE
params
returns one value,
the blue scale factor used during pixel transfers. The initial value is 1.
See glPixelTransfer.
GL_CLIENT_ACTIVE_TEXTURE
params
returns a single integer value indicating the current client active
multitexture unit. The initial value is GL_TEXTURE0
.
See glClientActiveTexture.
GL_CLIENT_ATTRIB_STACK_DEPTH
params
returns one value indicating the depth of the
attribute stack. The initial value is 0.
See glPushClientAttrib.
GL_CLIP_PLANE
i
params
returns a single boolean value indicating whether the specified
clipping plane is enabled. The initial value is GL_FALSE
.
See glClipPlane.
GL_COLOR_ARRAY
params
returns a single boolean value indicating whether the color array is enabled. The initial value is GL_FALSE
.
See glColorPointer.
GL_COLOR_ARRAY_BUFFER_BINDING
params
returns a single value, the name of the buffer object
associated with the color array. This buffer object would have been bound to the
target GL_ARRAY_BUFFER
at the time of the most recent call to
glColorPointer.
If no buffer object was bound to this target, 0 is returned. The initial value is 0.
See glBindBuffer.
GL_COLOR_ARRAY_SIZE
params
returns one value,
the number of components per color in the color array. The initial value
is 4.
See glColorPointer.
GL_COLOR_ARRAY_STRIDE
params
returns one value,
the byte offset between consecutive colors in the color array. The initial
value is 0.
See glColorPointer.
GL_COLOR_ARRAY_TYPE
params
returns one value,
the data type of each component in the color array. The initial value
is GL_FLOAT
.
See glColorPointer.
GL_COLOR_CLEAR_VALUE
params
returns four values:
the red, green, blue, and alpha values used to clear the color buffers.
Integer values,
if requested,
are linearly mapped from the internal floating-point representation such
that 1.0 returns the most positive representable integer value,
and
GL_COLOR_LOGIC_OP
params
returns a single boolean value indicating whether a fragment's
RGBA color values are merged into the framebuffer using a logical
operation. The initial value is GL_FALSE
.
See glLogicOp.
GL_COLOR_MATERIAL
params
returns a single boolean value indicating whether one or more
material parameters are tracking the current color. The initial value
is GL_FALSE
.
See glColorMaterial.
GL_COLOR_MATERIAL_FACE
params
returns one value,
a symbolic constant indicating which materials have a parameter that is
tracking the current color. The initial value is GL_FRONT_AND_BACK
.
See glColorMaterial.
GL_COLOR_MATERIAL_PARAMETER
params
returns one value,
a symbolic constant indicating which material parameters are
tracking the current color. The initial value is
GL_AMBIENT_AND_DIFFUSE
.
See glColorMaterial.
GL_COLOR_MATRIX
params
returns sixteen values:
the color matrix on the top of the color matrix stack. Initially
this matrix is the identity matrix.
See glPushMatrix.
GL_COLOR_MATRIX_STACK_DEPTH
params
returns one value,
the maximum supported depth of the projection matrix stack. The value must
be at least 2.
See glPushMatrix.
GL_COLOR_SUM
params
returns a single boolean value indicating whether primary and
secondary color sum is enabled.
See glSecondaryColor.
GL_COLOR_TABLE
params
returns a single boolean value indicating whether the color table
lookup is enabled.
See glColorTable.
GL_COLOR_WRITEMASK
params
returns four boolean values:
the red, green, blue, and alpha write enables for the color
buffers. The initial value is (GL_TRUE
, GL_TRUE
,
GL_TRUE
, GL_TRUE
).
See glColorMask.
GL_COMPRESSED_TEXTURE_FORMATS
params
returns a list of symbolic
constants of length GL_NUM_COMPRESSED_TEXTURE_FORMATS
indicating which compressed texture formats are available.
See glCompressedTexImage2D.
GL_CONVOLUTION_1D
params
returns a single boolean value indicating whether 1D convolution
is enabled. The initial value is GL_FALSE
.
See glConvolutionFilter1D.
GL_CONVOLUTION_2D
params
returns a single boolean value indicating whether 2D convolution
is enabled. The initial value is GL_FALSE
.
See glConvolutionFilter2D.
GL_CULL_FACE
params
returns a single boolean value indicating whether polygon culling
is enabled. The initial value is GL_FALSE
.
See glCullFace.
GL_CULL_FACE_MODE
params
returns one value,
a symbolic constant indicating which polygon faces are to be
culled. The initial value is GL_BACK
.
See glCullFace.
GL_CURRENT_COLOR
params
returns four values:
the red, green, blue, and alpha values of the current color.
Integer values,
if requested,
are linearly mapped from the internal floating-point representation such
that 1.0 returns the most positive representable integer value,
and
GL_CURRENT_FOG_COORD
params
returns one value, the current fog coordinate. The initial value
is 0.
See glFogCoord.
GL_CURRENT_INDEX
params
returns one value,
the current color index. The initial value is 1.
See glIndex.
GL_CURRENT_NORMAL
params
returns three values:
the x, y, and z values of the current normal.
Integer values,
if requested,
are linearly mapped from the internal floating-point representation such
that 1.0 returns the most positive representable integer value,
and
GL_CURRENT_PROGRAM
params
returns one value,
the name of the program object that is currently active, or 0 if no program object is active.
See glUseProgram.
GL_CURRENT_RASTER_COLOR
params
returns four values:
the red, green, blue, and alpha color values of the current raster position.
Integer values,
if requested,
are linearly mapped from the internal floating-point representation such
that 1.0 returns the most positive representable integer value,
and
GL_CURRENT_RASTER_DISTANCE
params
returns one value, the distance from the eye to the current
raster position. The initial value is 0.
See glRasterPos.
GL_CURRENT_RASTER_INDEX
params
returns one value,
the color index of the current raster position. The initial value is 1.
See glRasterPos.
GL_CURRENT_RASTER_POSITION
params
returns four values:
the x, y, z, and w components of the current
raster position.
x, y, and z are in window coordinates,
and w is in clip coordinates. The initial value is (0, 0, 0, 1).
See glRasterPos.
GL_CURRENT_RASTER_POSITION_VALID
params
returns a single boolean value indicating whether the current
raster position is valid. The initial value is GL_TRUE
.
See glRasterPos.
GL_CURRENT_RASTER_SECONDARY_COLOR
params
returns four values:
the red, green, blue, and alpha secondary color values of the current raster position.
Integer values,
if requested,
are linearly mapped from the internal floating-point representation such
that 1.0 returns the most positive representable integer value,
and
GL_CURRENT_RASTER_TEXTURE_COORDS
params
returns four values: the s, t, r, and q
texture coordinates of the current raster position. The initial value is (0, 0, 0, 1).
See glRasterPos and glMultiTexCoord.
GL_CURRENT_SECONDARY_COLOR
params
returns four values: the red, green, blue, and alpha values of the
current secondary color. Integer values, if requested, are linearly mapped
from the internal floating-point representation such that 1.0 returns the
most positive representable integer value, and
GL_CURRENT_TEXTURE_COORDS
params
returns four values:
the s, t, r, and q current texture
coordinates. The initial value is (0, 0, 0, 1).
See glMultiTexCoord.
GL_DEPTH_BIAS
params
returns one value,
the depth bias factor used during pixel transfers. The initial value is 0.
See glPixelTransfer.
GL_DEPTH_BITS
params
returns one value,
the number of bitplanes in the depth buffer.
GL_DEPTH_CLEAR_VALUE
params
returns one value,
the value that is used to clear the depth buffer.
Integer values,
if requested,
are linearly mapped from the internal floating-point representation such
that 1.0 returns the most positive representable integer value,
and
GL_DEPTH_FUNC
params
returns one value,
the symbolic constant that indicates the depth comparison
function. The initial value is GL_LESS
.
See glDepthFunc.
GL_DEPTH_RANGE
params
returns two values:
the near and far mapping limits for the depth buffer.
Integer values,
if requested,
are linearly mapped from the internal floating-point representation such
that 1.0 returns the most positive representable integer value,
and
GL_DEPTH_SCALE
params
returns one value,
the depth scale factor used during pixel transfers. The initial value is 1.
See glPixelTransfer.
GL_DEPTH_TEST
params
returns a single boolean value indicating whether depth testing
of fragments is enabled. The initial value is GL_FALSE
.
See glDepthFunc and glDepthRange.
GL_DEPTH_WRITEMASK
params
returns a single boolean value indicating if the depth buffer
is enabled for writing. The initial value is GL_TRUE
.
See glDepthMask.
GL_DITHER
params
returns a single boolean value indicating whether dithering of
fragment colors and indices is enabled. The initial value is GL_TRUE
.
GL_DOUBLEBUFFER
params
returns a single boolean value indicating whether double buffering
is supported.
GL_DRAW_BUFFER
params
returns one value,
a symbolic constant indicating which buffers are being drawn to.
See glDrawBuffer. The initial value is GL_BACK
if there
are back buffers, otherwise it is GL_FRONT
.
GL_DRAW_BUFFER
i
params
returns one value,
a symbolic constant indicating which buffers are being drawn to by the corresponding output color.
See glDrawBuffers.
The initial value of GL_DRAW_BUFFER0
is GL_BACK
if there
are back buffers, otherwise it is GL_FRONT
. The
initial values of draw buffers for all other output colors is GL_NONE
.
GL_EDGE_FLAG
params
returns a single boolean value indicating whether the current
edge flag is GL_TRUE
or GL_FALSE
. The initial value is GL_TRUE
.
See glEdgeFlag.
GL_EDGE_FLAG_ARRAY
params
returns a single boolean value indicating whether the edge
flag array is enabled. The initial value is GL_FALSE
.
See glEdgeFlagPointer.
GL_EDGE_FLAG_ARRAY_BUFFER_BINDING
params
returns a single value, the name of the buffer object
associated with the edge flag array. This buffer object would have been bound to the
target GL_ARRAY_BUFFER
at the time of the most recent call to
glEdgeFlagPointer.
If no buffer object was bound to this target, 0 is returned. The initial value is 0.
See glBindBuffer.
GL_EDGE_FLAG_ARRAY_STRIDE
params
returns one value,
the byte offset between consecutive edge flags in the edge flag
array. The initial value is 0.
See glEdgeFlagPointer.
GL_ELEMENT_ARRAY_BUFFER_BINDING
params
returns a single value, the name of the buffer object
currently bound to the target GL_ELEMENT_ARRAY_BUFFER
. If no buffer object
is bound to this target, 0 is returned. The initial value is 0.
See glBindBuffer.
GL_FEEDBACK_BUFFER_SIZE
params
returns one value, the size of the feedback buffer.
See glFeedbackBuffer.
GL_FEEDBACK_BUFFER_TYPE
params
returns one value, the type of the feedback buffer.
See glFeedbackBuffer.
GL_FOG
params
returns a single boolean value indicating whether fogging is
enabled. The initial value is GL_FALSE
.
See glFog.
GL_FOG_COORD_ARRAY
params
returns a single boolean value indicating whether the fog coordinate array is enabled. The initial value is GL_FALSE
.
See glFogCoordPointer.
GL_FOG_COORD_ARRAY_BUFFER_BINDING
params
returns a single value, the name of the buffer object
associated with the fog coordinate array. This buffer object would have been bound to the
target GL_ARRAY_BUFFER
at the time of the most recent call to
glFogCoordPointer.
If no buffer object was bound to this target, 0 is returned. The initial value is 0.
See glBindBuffer.
GL_FOG_COORD_ARRAY_STRIDE
params
returns one value,
the byte offset between consecutive fog coordinates in the fog coordinate
array. The initial value is 0.
See glFogCoordPointer.
GL_FOG_COORD_ARRAY_TYPE
params
returns one value, the type of the fog coordinate array.
The initial value is GL_FLOAT
.
See glFogCoordPointer.
GL_FOG_COORD_SRC
params
returns one value, a symbolic constant indicating the source of the fog coordinate.
The initial value is GL_FRAGMENT_DEPTH
.
See glFog.
GL_FOG_COLOR
params
returns four values:
the red, green, blue, and alpha components of the fog color.
Integer values,
if requested,
are linearly mapped from the internal floating-point representation such
that 1.0 returns the most positive representable integer value,
and
GL_FOG_DENSITY
params
returns one value,
the fog density parameter. The initial value is 1.
See glFog.
GL_FOG_END
params
returns one value,
the end factor for the linear fog equation. The initial value is 1.
See glFog.
GL_FOG_HINT
params
returns one value,
a symbolic constant indicating the mode of the fog hint. The initial value
is GL_DONT_CARE
.
See glHint.
GL_FOG_INDEX
params
returns one value,
the fog color index. The initial value is 0.
See glFog.
GL_FOG_MODE
params
returns one value,
a symbolic constant indicating which fog equation is selected. The initial
value is GL_EXP
.
See glFog.
GL_FOG_START
params
returns one value,
the start factor for the linear fog equation. The initial value is 0.
See glFog.
GL_FRAGMENT_SHADER_DERIVATIVE_HINT
params
returns one value,
a symbolic constant indicating the mode of the derivative accuracy hint
for fragment shaders. The initial value
is GL_DONT_CARE
.
See glHint.
GL_FRONT_FACE
params
returns one value,
a symbolic constant indicating whether clockwise or counterclockwise
polygon winding is treated as front-facing. The initial value is
GL_CCW
.
See glFrontFace.
GL_GENERATE_MIPMAP_HINT
params
returns one value,
a symbolic constant indicating the mode of the mipmap generation filtering
hint. The initial value is GL_DONT_CARE
.
See glHint.
GL_GREEN_BIAS
params
returns one value,
the green bias factor used during pixel transfers. The initial value is 0.
GL_GREEN_BITS
params
returns one value,
the number of green bitplanes in each color buffer.
GL_GREEN_SCALE
params
returns one value,
the green scale factor used during pixel transfers. The initial value is 1.
See glPixelTransfer.
GL_HISTOGRAM
params
returns a single boolean value indicating whether histogram is
enabled. The initial value is GL_FALSE
.
See glHistogram.
GL_INDEX_ARRAY
params
returns a single boolean value indicating whether the color
index array is enabled. The initial value is GL_FALSE
.
See glIndexPointer.
GL_INDEX_ARRAY_BUFFER_BINDING
params
returns a single value, the name of the buffer object
associated with the color index array. This buffer object would have been bound to the
target GL_ARRAY_BUFFER
at the time of the most recent call to
glIndexPointer.
If no buffer object was bound to this target, 0 is returned. The initial value is 0.
See glBindBuffer.
GL_INDEX_ARRAY_STRIDE
params
returns one value,
the byte offset between consecutive color indexes in the color index
array. The initial value is 0.
See glIndexPointer.
GL_INDEX_ARRAY_TYPE
params
returns one value,
the data type of indexes in the color index array. The initial value is
GL_FLOAT
.
See glIndexPointer.
GL_INDEX_BITS
params
returns one value,
the number of bitplanes in each color index buffer.
GL_INDEX_CLEAR_VALUE
params
returns one value,
the color index used to clear the color index buffers. The initial value
is 0.
See glClearIndex.
GL_INDEX_LOGIC_OP
params
returns a single boolean value indicating whether a fragment's index
values are merged into the framebuffer using a logical
operation. The initial value is GL_FALSE
.
See glLogicOp.
GL_INDEX_MODE
params
returns a single boolean value indicating whether the GL is in
color index mode (GL_TRUE
) or RGBA mode (GL_FALSE
).
GL_INDEX_OFFSET
params
returns one value,
the offset added to color and stencil indices during pixel
transfers. The initial value is 0.
See glPixelTransfer.
GL_INDEX_SHIFT
params
returns one value,
the amount that color and stencil indices are shifted during pixel
transfers. The initial value is 0.
See glPixelTransfer.
GL_INDEX_WRITEMASK
params
returns one value,
a mask indicating which bitplanes of each color index buffer can be
written. The initial value is all 1's.
See glIndexMask.
GL_LIGHT
i
params
returns a single boolean value indicating whether the specified
light is enabled. The initial value is GL_FALSE
.
See glLight and glLightModel.
GL_LIGHTING
params
returns a single boolean value indicating whether lighting is
enabled. The initial value is GL_FALSE
.
See glLightModel.
GL_LIGHT_MODEL_AMBIENT
params
returns four values:
the red, green, blue, and alpha components of the ambient intensity of
the entire scene.
Integer values,
if requested,
are linearly mapped from the internal floating-point representation such
that 1.0 returns the most positive representable integer value,
and
GL_LIGHT_MODEL_COLOR_CONTROL
params
returns single enumerated value indicating whether specular
reflection calculations are separated from normal lighting computations.
The initial value is GL_SINGLE_COLOR
.
GL_LIGHT_MODEL_LOCAL_VIEWER
params
returns a single boolean value indicating whether specular reflection
calculations treat the viewer as being local to the scene. The initial
value is GL_FALSE
.
See glLightModel.
GL_LIGHT_MODEL_TWO_SIDE
params
returns a single boolean value indicating whether separate materials
are used to compute lighting for front- and back-facing
polygons. The initial value is GL_FALSE
.
See glLightModel.
GL_LINE_SMOOTH
params
returns a single boolean value indicating whether antialiasing of
lines is enabled. The initial value is GL_FALSE
.
See glLineWidth.
GL_LINE_SMOOTH_HINT
params
returns one value,
a symbolic constant indicating the mode of the line antialiasing
hint. The initial value is GL_DONT_CARE
.
See glHint.
GL_LINE_STIPPLE
params
returns a single boolean value indicating whether stippling of lines
is enabled. The initial value is GL_FALSE
.
See glLineStipple.
GL_LINE_STIPPLE_PATTERN
params
returns one value,
the 16-bit line stipple pattern. The initial value is all 1's.
See glLineStipple.
GL_LINE_STIPPLE_REPEAT
params
returns one value,
the line stipple repeat factor. The initial value is 1.
See glLineStipple.
GL_LINE_WIDTH
params
returns one value,
the line width as specified with glLineWidth. The initial value is
1.
GL_LINE_WIDTH_GRANULARITY
params
returns one value,
the width difference between adjacent supported widths for antialiased lines.
See glLineWidth.
GL_LINE_WIDTH_RANGE
params
returns two values:
the smallest and largest supported widths for antialiased
lines.
See glLineWidth.
GL_LIST_BASE
params
returns one value,
the base offset added to all names in arrays presented to
glCallLists. The initial value is 0.
See glListBase.
GL_LIST_INDEX
params
returns one value,
the name of the display list currently under construction.
0 is returned if no display list is currently under
construction. The initial value is 0.
See glNewList.
GL_LIST_MODE
params
returns one value,
a symbolic constant indicating the construction mode of the display list
currently under construction. The initial value is 0.
See glNewList.
GL_LOGIC_OP_MODE
params
returns one value,
a symbolic constant indicating the selected logic operation
mode. The initial value is GL_COPY
.
See glLogicOp.
GL_MAP1_COLOR_4
params
returns a single boolean value indicating whether
1D evaluation generates colors. The initial value is GL_FALSE
.
See glMap1.
GL_MAP1_GRID_DOMAIN
params
returns two values:
the endpoints of the 1D map's grid domain. The initial value is (0, 1).
See glMapGrid.
GL_MAP1_GRID_SEGMENTS
params
returns one value,
the number of partitions in the 1D map's grid domain. The initial value
is 1.
See glMapGrid.
GL_MAP1_INDEX
params
returns a single boolean value indicating whether
1D evaluation generates color indices. The initial value is GL_FALSE
.
See glMap1.
GL_MAP1_NORMAL
params
returns a single boolean value indicating whether
1D evaluation generates normals. The initial value is GL_FALSE
.
See glMap1.
GL_MAP1_TEXTURE_COORD_1
params
returns a single boolean value indicating whether
1D evaluation generates 1D texture coordinates. The initial value is
GL_FALSE
.
See glMap1.
GL_MAP1_TEXTURE_COORD_2
params
returns a single boolean value indicating whether
1D evaluation generates 2D texture coordinates. The initial value is
GL_FALSE
.
See glMap1.
GL_MAP1_TEXTURE_COORD_3
params
returns a single boolean value indicating whether
1D evaluation generates 3D texture coordinates. The initial value is
GL_FALSE
.
See glMap1.
GL_MAP1_TEXTURE_COORD_4
params
returns a single boolean value indicating whether
1D evaluation generates 4D texture coordinates. The initial value is
GL_FALSE
.
See glMap1.
GL_MAP1_VERTEX_3
params
returns a single boolean value indicating whether
1D evaluation generates 3D vertex coordinates. The initial value is
GL_FALSE
.
See glMap1.
GL_MAP1_VERTEX_4
params
returns a single boolean value indicating whether
1D evaluation generates 4D vertex coordinates. The initial value is
GL_FALSE
.
See glMap1.
GL_MAP2_COLOR_4
params
returns a single boolean value indicating whether
2D evaluation generates colors. The initial value is GL_FALSE
.
See glMap2.
GL_MAP2_GRID_DOMAIN
params
returns four values:
the endpoints of the 2D map's
GL_MAP2_GRID_SEGMENTS
params
returns two values:
the number of partitions in the 2D map's
GL_MAP2_INDEX
params
returns a single boolean value indicating whether
2D evaluation generates color indices. The initial value is GL_FALSE
.
See glMap2.
GL_MAP2_NORMAL
params
returns a single boolean value indicating whether
2D evaluation generates normals. The initial value is GL_FALSE
.
See glMap2.
GL_MAP2_TEXTURE_COORD_1
params
returns a single boolean value indicating whether
2D evaluation generates 1D texture coordinates. The initial value is
GL_FALSE
.
See glMap2.
GL_MAP2_TEXTURE_COORD_2
params
returns a single boolean value indicating whether
2D evaluation generates 2D texture coordinates. The initial value is
GL_FALSE
.
See glMap2.
GL_MAP2_TEXTURE_COORD_3
params
returns a single boolean value indicating whether
2D evaluation generates 3D texture coordinates. The initial value is
GL_FALSE
.
See glMap2.
GL_MAP2_TEXTURE_COORD_4
params
returns a single boolean value indicating whether
2D evaluation generates 4D texture coordinates. The initial value is
GL_FALSE
.
See glMap2.
GL_MAP2_VERTEX_3
params
returns a single boolean value indicating whether
2D evaluation generates 3D vertex coordinates. The initial value is
GL_FALSE
.
See glMap2.
GL_MAP2_VERTEX_4
params
returns a single boolean value indicating whether
2D evaluation generates 4D vertex coordinates. The initial value is
GL_FALSE
.
See glMap2.
GL_MAP_COLOR
params
returns a single boolean value indicating if colors and
color indices are to be replaced by table lookup during pixel
transfers. The initial value is GL_FALSE
.
See glPixelTransfer.
GL_MAP_STENCIL
params
returns a single boolean value indicating if stencil indices
are to be replaced by table lookup during pixel transfers. The initial
value is GL_FALSE
.
See glPixelTransfer.
GL_MATRIX_MODE
params
returns one value,
a symbolic constant indicating which matrix stack is currently the
target of all matrix operations. The initial value is GL_MODELVIEW
.
See glMatrixMode.
GL_MAX_3D_TEXTURE_SIZE
params
returns one value,
a rough estimate of the largest 3D texture that the GL can handle.
The value must be at least 16.
If the GL version is 1.2 or greater, use
GL_PROXY_TEXTURE_3D
to determine if a texture is too large.
See glTexImage3D.
GL_MAX_CLIENT_ATTRIB_STACK_DEPTH
params
returns one value indicating the maximum supported depth
of the client attribute stack.
See glPushClientAttrib.
GL_MAX_ATTRIB_STACK_DEPTH
params
returns one value,
the maximum supported depth of the attribute stack. The value must be
at least 16.
See glPushAttrib.
GL_MAX_CLIP_PLANES
params
returns one value,
the maximum number of application-defined clipping planes. The value must be at least 6.
See glClipPlane.
GL_MAX_COLOR_MATRIX_STACK_DEPTH
params
returns one value, the maximum supported depth of the color matrix
stack. The value must be at least 2.
See glPushMatrix.
GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS
params
returns one value, the maximum supported texture image units that
can be used to access texture maps from the vertex shader and the fragment processor combined.
If both the vertex shader and the fragment processing stage access the same texture image
unit, then that counts as using two texture image units against this limit.
The value must be at least 2.
See glActiveTexture.
GL_MAX_CUBE_MAP_TEXTURE_SIZE
params
returns one value.
The value gives a rough estimate of the largest cube-map texture that
the GL can handle. The value must be at least 16.
If the GL version is 1.3 or greater, use GL_PROXY_TEXTURE_CUBE_MAP
to determine if a texture is too large.
See glTexImage2D.
GL_MAX_DRAW_BUFFERS
params
returns one value, the maximum number
of simultaneous output colors allowed from a fragment shader using the
gl_FragData
built-in array. The value must be at least 1.
See glDrawBuffers.
GL_MAX_ELEMENTS_INDICES
params
returns one value,
the recommended maximum number of vertex array indices.
See glDrawRangeElements.
GL_MAX_ELEMENTS_VERTICES
params
returns one value,
the recommended maximum number of vertex array vertices.
See glDrawRangeElements.
GL_MAX_EVAL_ORDER
params
returns one value,
the maximum equation order supported by 1D and 2D
evaluators. The value must be at least 8.
See glMap1 and glMap2.
GL_MAX_FRAGMENT_UNIFORM_COMPONENTS
params
returns one value,
the maximum number of individual floating-point, integer, or boolean values that can be held
in uniform variable storage for a fragment shader. The value must be at least 64.
See glUniform.
GL_MAX_LIGHTS
params
returns one value,
the maximum number of lights. The value must be at least 8.
See glLight.
GL_MAX_LIST_NESTING
params
returns one value,
the maximum recursion depth allowed during display-list
traversal. The value must be at least 64.
See glCallList.
GL_MAX_MODELVIEW_STACK_DEPTH
params
returns one value,
the maximum supported depth of the modelview matrix stack. The value must
be at least 32.
See glPushMatrix.
GL_MAX_NAME_STACK_DEPTH
params
returns one value,
the maximum supported depth of the selection name stack. The value must be at least 64.
See glPushName.
GL_MAX_PIXEL_MAP_TABLE
params
returns one value,
the maximum supported size of a glPixelMap lookup table.
The value must be at least 32.
See glPixelMap.
GL_MAX_PROJECTION_STACK_DEPTH
params
returns one value, the maximum supported depth of the projection
matrix stack. The value must be at least 2.
See glPushMatrix.
GL_MAX_TEXTURE_COORDS
params
returns one value,
the maximum number of texture coordinate sets available to vertex and fragment shaders.
The value must be at least 2.
See glActiveTexture and
glClientActiveTexture.
GL_MAX_TEXTURE_IMAGE_UNITS
params
returns one value, the maximum supported texture image units that
can be used to access texture maps from the fragment shader.
The value must be at least 2.
See glActiveTexture.
GL_MAX_TEXTURE_LOD_BIAS
params
returns one value,
the maximum, absolute value of the texture level-of-detail bias. The
value must be at least 4.
GL_MAX_TEXTURE_SIZE
params
returns one value.
The value gives a rough estimate of the largest texture that
the GL can handle. The value must be at least 64.
If the GL version is 1.1 or greater, use
GL_PROXY_TEXTURE_1D
or GL_PROXY_TEXTURE_2D
to determine if a texture is too large.
See glTexImage1D and glTexImage2D.
GL_MAX_TEXTURE_STACK_DEPTH
params
returns one value,
the maximum supported depth of the texture matrix stack. The value must be at least 2.
See glPushMatrix.
GL_MAX_TEXTURE_UNITS
params
returns a single value indicating the number of conventional
texture units supported. Each conventional texture unit includes both a texture coordinate set
and a texture image unit. Conventional texture units may be used for fixed-function (non-shader)
rendering. The value must be at least 2. Additional texture coordinate sets and texture
image units may be accessed from vertex and fragment shaders.
See glActiveTexture and
glClientActiveTexture.
GL_MAX_VARYING_FLOATS
params
returns one value,
the maximum number of interpolators available for processing varying variables used by
vertex and fragment shaders. This value represents the number of individual floating-point
values that can be interpolated; varying variables declared as vectors, matrices, and arrays
will all consume multiple interpolators. The value must be at least 32.
GL_MAX_VERTEX_ATTRIBS
params
returns one value,
the maximum number of 4-component generic vertex attributes accessible to a vertex shader.
The value must be at least 16.
See glVertexAttrib.
GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS
params
returns one value, the maximum supported texture image units that
can be used to access texture maps from the vertex shader. The value may be 0.
See glActiveTexture.
GL_MAX_VERTEX_UNIFORM_COMPONENTS
params
returns one value,
the maximum number of individual floating-point, integer, or boolean values that can be held
in uniform variable storage for a vertex shader. The value must be at least 512.
See glUniform.
GL_MAX_VIEWPORT_DIMS
params
returns two values:
the maximum supported width and height of the viewport.
These must be at least as large as the visible dimensions of the display
being rendered to.
See glViewport.
GL_MINMAX
params
returns a single boolean value indicating whether pixel minmax
values are computed. The initial value is GL_FALSE
.
See glMinmax.
GL_MODELVIEW_MATRIX
params
returns sixteen values:
the modelview matrix on the top of the modelview matrix stack. Initially
this matrix is the identity matrix.
See glPushMatrix.
GL_MODELVIEW_STACK_DEPTH
params
returns one value,
the number of matrices on the modelview matrix stack.
The initial value is 1.
See glPushMatrix.
GL_NAME_STACK_DEPTH
params
returns one value,
the number of names on the selection name stack. The initial value is 0.
See glPushName.
GL_NORMAL_ARRAY
params
returns a single boolean value, indicating whether the normal
array is enabled. The initial value is GL_FALSE
.
See glNormalPointer.
GL_NORMAL_ARRAY_BUFFER_BINDING
params
returns a single value, the name of the buffer object
associated with the normal array. This buffer object would have been bound to the
target GL_ARRAY_BUFFER
at the time of the most recent call to
glNormalPointer.
If no buffer object was bound to this target, 0 is returned. The initial value is 0.
See glBindBuffer.
GL_NORMAL_ARRAY_STRIDE
params
returns one value,
the byte offset between consecutive normals in the normal
array. The initial value is 0.
See glNormalPointer.
GL_NORMAL_ARRAY_TYPE
params
returns one value,
the data type of each coordinate in the normal array. The initial value is
GL_FLOAT
.
See glNormalPointer.
GL_NORMALIZE
params
returns a single boolean value indicating whether normals are
automatically scaled to unit length after they have been transformed to
eye coordinates. The initial value is GL_FALSE
.
See glNormal.
GL_NUM_COMPRESSED_TEXTURE_FORMATS
params
returns a single integer value indicating the number of available
compressed texture formats. The minimum value is 0.
See glCompressedTexImage2D.
GL_PACK_ALIGNMENT
params
returns one value,
the byte alignment used for writing pixel data to memory. The initial
value is 4.
See glPixelStore.
GL_PACK_IMAGE_HEIGHT
params
returns one value,
the image height used for writing pixel data to memory. The initial
value is 0.
See glPixelStore.
GL_PACK_LSB_FIRST
params
returns a single boolean value indicating whether single-bit
pixels being written to memory are written first to the least significant
bit of each unsigned byte. The initial value is GL_FALSE
.
See glPixelStore.
GL_PACK_ROW_LENGTH
params
returns one value,
the row length used for writing pixel data to memory. The initial value is
0.
See glPixelStore.
GL_PACK_SKIP_IMAGES
params
returns one value,
the number of pixel images skipped before the first pixel is written
into memory. The initial value is 0.
See glPixelStore.
GL_PACK_SKIP_PIXELS
params
returns one value,
the number of pixel locations skipped before the first pixel is written
into memory. The initial value is 0.
See glPixelStore.
GL_PACK_SKIP_ROWS
params
returns one value,
the number of rows of pixel locations skipped before the first pixel is written
into memory. The initial value is 0.
See glPixelStore.
GL_PACK_SWAP_BYTES
params
returns a single boolean value indicating whether the bytes of
two-byte and four-byte pixel indices and components are swapped before being
written to memory. The initial value is GL_FALSE
.
See glPixelStore.
GL_PERSPECTIVE_CORRECTION_HINT
params
returns one value,
a symbolic constant indicating the mode of the perspective correction
hint. The initial value is GL_DONT_CARE
.
See glHint.
GL_PIXEL_MAP_A_TO_A_SIZE
params
returns one value,
the size of the alpha-to-alpha pixel translation table.
The initial value is 1.
See glPixelMap.
GL_PIXEL_MAP_B_TO_B_SIZE
params
returns one value,
the size of the blue-to-blue pixel translation table.
The initial value is 1.
See glPixelMap.
GL_PIXEL_MAP_G_TO_G_SIZE
params
returns one value,
the size of the green-to-green pixel translation table.
The initial value is 1.
See glPixelMap.
GL_PIXEL_MAP_I_TO_A_SIZE
params
returns one value,
the size of the index-to-alpha pixel translation table.
The initial value is 1.
See glPixelMap.
GL_PIXEL_MAP_I_TO_B_SIZE
params
returns one value,
the size of the index-to-blue pixel translation table.
The initial value is 1.
See glPixelMap.
GL_PIXEL_MAP_I_TO_G_SIZE
params
returns one value,
the size of the index-to-green pixel translation table.
The initial value is 1.
See glPixelMap.
GL_PIXEL_MAP_I_TO_I_SIZE
params
returns one value,
the size of the index-to-index pixel translation table.
The initial value is 1.
See glPixelMap.
GL_PIXEL_MAP_I_TO_R_SIZE
params
returns one value,
the size of the index-to-red pixel translation table.
The initial value is 1.
See glPixelMap.
GL_PIXEL_MAP_R_TO_R_SIZE
params
returns one value,
the size of the red-to-red pixel translation table.
The initial value is 1.
See glPixelMap.
GL_PIXEL_MAP_S_TO_S_SIZE
params
returns one value,
the size of the stencil-to-stencil pixel translation table.
The initial value is 1.
See glPixelMap.
GL_PIXEL_PACK_BUFFER_BINDING
params
returns a single value, the name of the buffer object
currently bound to the target GL_PIXEL_PACK_BUFFER
. If no buffer object
is bound to this target, 0 is returned. The initial value is 0.
See glBindBuffer.
GL_PIXEL_UNPACK_BUFFER_BINDING
params
returns a single value, the name of the buffer object
currently bound to the target GL_PIXEL_UNPACK_BUFFER
. If no buffer object
is bound to this target, 0 is returned. The initial value is 0.
See glBindBuffer.
GL_POINT_DISTANCE_ATTENUATION
params
returns three values,
the coefficients for computing the attenuation value for points.
See glPointParameter.
GL_POINT_FADE_THRESHOLD_SIZE
params
returns one value,
the point size threshold for determining the point size.
See glPointParameter.
GL_POINT_SIZE
params
returns one value,
the point size as specified by glPointSize. The initial value is 1.
GL_POINT_SIZE_GRANULARITY
params
returns one value,
the size difference between adjacent supported sizes for antialiased points.
See glPointSize.
GL_POINT_SIZE_MAX
params
returns one value,
the upper bound for the attenuated point sizes. The initial value is 0.0.
See glPointParameter.
GL_POINT_SIZE_MIN
params
returns one value,
the lower bound for the attenuated point sizes. The initial value is 1.0.
See glPointParameter.
GL_POINT_SIZE_RANGE
params
returns two values:
the smallest and largest supported sizes for antialiased
points. The smallest size must be at most 1, and the largest size must
be at least 1.
See glPointSize.
GL_POINT_SMOOTH
params
returns a single boolean value indicating whether antialiasing of
points is enabled. The initial value is GL_FALSE
.
See glPointSize.
GL_POINT_SMOOTH_HINT
params
returns one value,
a symbolic constant indicating the mode of the point antialiasing
hint. The initial value is GL_DONT_CARE
.
See glHint.
GL_POINT_SPRITE
params
returns a single boolean value indicating whether point sprite is
enabled. The initial value is GL_FALSE
.
GL_POLYGON_MODE
params
returns two values:
symbolic constants indicating whether front-facing and back-facing polygons
are rasterized as points, lines, or filled polygons. The initial value is
GL_FILL
.
See glPolygonMode.
GL_POLYGON_OFFSET_FACTOR
params
returns one value,
the scaling factor used to determine the variable offset that is added
to the depth value of each fragment generated when a polygon is
rasterized. The initial value is 0.
See glPolygonOffset.
GL_POLYGON_OFFSET_UNITS
params
returns one value.
This value is multiplied by an implementation-specific value and then
added to the depth value of each fragment
generated when a polygon is rasterized. The initial value is 0.
See glPolygonOffset.
GL_POLYGON_OFFSET_FILL
params
returns a single boolean value indicating whether polygon offset
is enabled for polygons in fill mode. The initial value is GL_FALSE
.
See glPolygonOffset.
GL_POLYGON_OFFSET_LINE
params
returns a single boolean value indicating whether polygon offset
is enabled for polygons in line mode. The initial value is GL_FALSE
.
See glPolygonOffset.
GL_POLYGON_OFFSET_POINT
params
returns a single boolean value indicating whether polygon offset
is enabled for polygons in point mode. The initial value is GL_FALSE
.
See glPolygonOffset.
GL_POLYGON_SMOOTH
params
returns a single boolean value indicating whether antialiasing of
polygons is enabled. The initial value is GL_FALSE
.
See glPolygonMode.
GL_POLYGON_SMOOTH_HINT
params
returns one value,
a symbolic constant indicating the mode of the polygon antialiasing
hint. The initial value is GL_DONT_CARE
.
See glHint.
GL_POLYGON_STIPPLE
params
returns a single boolean value indicating whether polygon
stippling is enabled. The initial value is GL_FALSE
.
See glPolygonStipple.
GL_POST_COLOR_MATRIX_COLOR_TABLE
params
returns a single boolean value indicating whether post color
matrix transformation lookup is enabled.
The initial value is GL_FALSE
.
See glColorTable.
GL_POST_COLOR_MATRIX_RED_BIAS
params
returns one value, the red bias factor applied to RGBA fragments
after color matrix transformations.
The initial value is 0.
See glPixelTransfer.
GL_POST_COLOR_MATRIX_GREEN_BIAS
params
returns one value, the green bias factor applied to RGBA fragments
after color matrix transformations.
The initial value is 0.
See glPixelTransfer
GL_POST_COLOR_MATRIX_BLUE_BIAS
params
returns one value, the blue bias factor applied to RGBA fragments
after color matrix transformations.
The initial value is 0.
See glPixelTransfer.
GL_POST_COLOR_MATRIX_ALPHA_BIAS
params
returns one value, the alpha bias factor applied to RGBA fragments
after color matrix transformations.
The initial value is 0.
See glPixelTransfer.
GL_POST_COLOR_MATRIX_RED_SCALE
params
returns one value, the red scale factor applied to RGBA fragments
after color matrix transformations.
The initial value is 1.
See glPixelTransfer.
GL_POST_COLOR_MATRIX_GREEN_SCALE
params
returns one value, the green scale factor applied to RGBA fragments
after color matrix transformations.
The initial value is 1.
See glPixelTransfer.
GL_POST_COLOR_MATRIX_BLUE_SCALE
params
returns one value, the blue scale factor applied to RGBA fragments
after color matrix transformations.
The initial value is 1.
See glPixelTransfer.
GL_POST_COLOR_MATRIX_ALPHA_SCALE
params
returns one value, the alpha scale factor applied to RGBA fragments
after color matrix transformations.
The initial value is 1.
See glPixelTransfer.
GL_POST_CONVOLUTION_COLOR_TABLE
params
returns a single boolean value indicating whether post convolution
lookup is enabled. The initial value is GL_FALSE
.
See glColorTable.
GL_POST_CONVOLUTION_RED_BIAS
params
returns one value, the red bias factor applied to RGBA fragments
after convolution. The initial value is 0.
See glPixelTransfer.
GL_POST_CONVOLUTION_GREEN_BIAS
params
returns one value, the green bias factor applied to RGBA fragments
after convolution. The initial value is 0.
See glPixelTransfer.
GL_POST_CONVOLUTION_BLUE_BIAS
params
returns one value, the blue bias factor applied to RGBA fragments
after convolution. The initial value is 0.
See glPixelTransfer.
GL_POST_CONVOLUTION_ALPHA_BIAS
params
returns one value, the alpha bias factor applied to RGBA fragments
after convolution. The initial value is 0.
See glPixelTransfer.
GL_POST_CONVOLUTION_RED_SCALE
params
returns one value, the red scale factor applied to RGBA fragments
after convolution. The initial value is 1.
See glPixelTransfer.
GL_POST_CONVOLUTION_GREEN_SCALE
params
returns one value, the green scale factor applied to RGBA fragments
after convolution. The initial value is 1.
See glPixelTransfer.
GL_POST_CONVOLUTION_BLUE_SCALE
params
returns one value, the blue scale factor applied to RGBA fragments
after convolution. The initial value is 1.
See glPixelTransfer.
GL_POST_CONVOLUTION_ALPHA_SCALE
params
returns one value, the alpha scale factor applied to RGBA fragments
after convolution. The initial value is 1.
See glPixelTransfer.
GL_PROJECTION_MATRIX
params
returns sixteen values:
the projection matrix on the top of the projection matrix
stack. Initially this matrix is the identity matrix.
See glPushMatrix.
GL_PROJECTION_STACK_DEPTH
params
returns one value,
the number of matrices on the projection matrix stack.
The initial value is 1.
See glPushMatrix.
GL_READ_BUFFER
params
returns one value,
a symbolic constant indicating which color buffer is selected for
reading. The initial value is GL_BACK
if there is a back buffer,
otherwise it is GL_FRONT
.
See
glReadPixels and glAccum.
GL_RED_BIAS
params
returns one value,
the red bias factor used during pixel transfers. The initial value is 0.
GL_RED_BITS
params
returns one value,
the number of red bitplanes in each color buffer.
GL_RED_SCALE
params
returns one value,
the red scale factor used during pixel transfers. The initial value is 1.
See glPixelTransfer.
GL_RENDER_MODE
params
returns one value,
a symbolic constant indicating whether the GL is in render,
select,
or feedback mode. The initial value is GL_RENDER
.
See glRenderMode.
GL_RESCALE_NORMAL
params
returns single boolean value
indicating whether normal rescaling is enabled.
See glEnable.
GL_RGBA_MODE
params
returns a single boolean value indicating whether the GL is in RGBA
mode (true) or color index mode (false).
See glColor.
GL_SAMPLE_BUFFERS
params
returns a single integer value indicating the number of sample buffers
associated with the framebuffer.
See glSampleCoverage.
GL_SAMPLE_COVERAGE_VALUE
params
returns a single positive floating-point value indicating the
current sample coverage value.
See glSampleCoverage.
GL_SAMPLE_COVERAGE_INVERT
params
returns a single boolean value indicating if the temporary
coverage value should be inverted.
See glSampleCoverage.
GL_SAMPLES
params
returns a single integer value indicating the coverage mask size.
See glSampleCoverage.
GL_SCISSOR_BOX
params
returns four values:
the
GL_SCISSOR_TEST
params
returns a single boolean value indicating whether scissoring is
enabled. The initial value is GL_FALSE
.
See glScissor.
GL_SECONDARY_COLOR_ARRAY
params
returns a single boolean value indicating whether the secondary color array is enabled. The initial value is GL_FALSE
.
See glSecondaryColorPointer.
GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING
params
returns a single value, the name of the buffer object
associated with the secondary color array. This buffer object would have been bound to the
target GL_ARRAY_BUFFER
at the time of the most recent call to
glSecondaryColorPointer.
If no buffer object was bound to this target, 0 is returned. The initial value is 0.
See glBindBuffer.
GL_SECONDARY_COLOR_ARRAY_SIZE
params
returns one value, the number of components per color in the
secondary color array. The initial value is 3.
See glSecondaryColorPointer.
GL_SECONDARY_COLOR_ARRAY_STRIDE
params
returns one value, the byte offset between consecutive colors in
the secondary color array. The initial value is 0.
See glSecondaryColorPointer.
GL_SECONDARY_COLOR_ARRAY_TYPE
params
returns one value, the data type of each component in the secondary
color array. The initial value is GL_FLOAT
.
See glSecondaryColorPointer.
GL_SELECTION_BUFFER_SIZE
params
return one value,
the size of the selection buffer.
See glSelectBuffer.
GL_SEPARABLE_2D
params
returns a single boolean value indicating whether 2D separable
convolution is enabled. The initial value is GL_FALSE
.
See glSeparableFilter2D.
GL_SHADE_MODEL
params
returns one value,
a symbolic constant indicating whether the shading mode is flat or
smooth. The initial value is GL_SMOOTH
.
See glShadeModel.
GL_SMOOTH_LINE_WIDTH_RANGE
params
returns two values,
the smallest and largest supported widths for antialiased lines.
See glLineWidth.
GL_SMOOTH_LINE_WIDTH_GRANULARITY
params
returns one value,
the granularity of widths for antialiased lines.
See glLineWidth.
GL_SMOOTH_POINT_SIZE_RANGE
params
returns two values,
the smallest and largest supported widths for antialiased points.
See glPointSize.
GL_SMOOTH_POINT_SIZE_GRANULARITY
params
returns one value,
the granularity of sizes for antialiased points.
See glPointSize.
GL_STENCIL_BACK_FAIL
params
returns one value,
a symbolic constant indicating what action is taken for back-facing polygons when the stencil
test fails. The initial value is GL_KEEP
.
See glStencilOpSeparate.
GL_STENCIL_BACK_FUNC
params
returns one value,
a symbolic constant indicating what function is used for back-facing polygons to compare the
stencil reference value with the stencil buffer value. The initial value
is GL_ALWAYS
.
See glStencilFuncSeparate.
GL_STENCIL_BACK_PASS_DEPTH_FAIL
params
returns one value,
a symbolic constant indicating what action is taken for back-facing polygons when the stencil
test passes,
but the depth test fails. The initial value is GL_KEEP
.
See glStencilOpSeparate.
GL_STENCIL_BACK_PASS_DEPTH_PASS
params
returns one value,
a symbolic constant indicating what action is taken for back-facing polygons when the stencil
test passes and the depth test passes. The initial value is GL_KEEP
.
See glStencilOpSeparate.
GL_STENCIL_BACK_REF
params
returns one value,
the reference value that is compared with the contents of the stencil
buffer for back-facing polygons. The initial value is 0.
See glStencilFuncSeparate.
GL_STENCIL_BACK_VALUE_MASK
params
returns one value,
the mask that is used for back-facing polygons to mask both the stencil reference value and the
stencil buffer value before they are compared. The initial value is all 1's.
See glStencilFuncSeparate.
GL_STENCIL_BACK_WRITEMASK
params
returns one value,
the mask that controls writing of the stencil bitplanes for back-facing polygons. The initial value
is all 1's.
See glStencilMaskSeparate.
GL_STENCIL_BITS
params
returns one value,
the number of bitplanes in the stencil buffer.
GL_STENCIL_CLEAR_VALUE
params
returns one value,
the index to which the stencil bitplanes are cleared. The initial value is
0.
See glClearStencil.
GL_STENCIL_FAIL
params
returns one value,
a symbolic constant indicating what action is taken when the stencil
test fails. The initial value is GL_KEEP
.
See glStencilOp.
If the GL version is 2.0 or greater, this stencil state only affects non-polygons
and front-facing polygons. Back-facing polygons use separate stencil state.
See glStencilOpSeparate.
GL_STENCIL_FUNC
params
returns one value,
a symbolic constant indicating what function is used to compare the
stencil reference value with the stencil buffer value. The initial value
is GL_ALWAYS
.
See glStencilFunc.
If the GL version is 2.0 or greater, this stencil state only affects non-polygons
and front-facing polygons. Back-facing polygons use separate stencil state.
See glStencilFuncSeparate.
GL_STENCIL_PASS_DEPTH_FAIL
params
returns one value,
a symbolic constant indicating what action is taken when the stencil
test passes,
but the depth test fails. The initial value is GL_KEEP
.
See glStencilOp.
If the GL version is 2.0 or greater, this stencil state only affects non-polygons
and front-facing polygons. Back-facing polygons use separate stencil state.
See glStencilOpSeparate.
GL_STENCIL_PASS_DEPTH_PASS
params
returns one value,
a symbolic constant indicating what action is taken when the stencil
test passes and the depth test passes. The initial value is GL_KEEP
.
See glStencilOp.
If the GL version is 2.0 or greater, this stencil state only affects non-polygons
and front-facing polygons. Back-facing polygons use separate stencil state.
See glStencilOpSeparate.
GL_STENCIL_REF
params
returns one value,
the reference value that is compared with the contents of the stencil
buffer. The initial value is 0.
See glStencilFunc.
If the GL version is 2.0 or greater, this stencil state only affects non-polygons
and front-facing polygons. Back-facing polygons use separate stencil state.
See glStencilFuncSeparate.
GL_STENCIL_TEST
params
returns a single boolean value indicating whether stencil testing
of fragments is enabled. The initial value is GL_FALSE
.
See glStencilFunc and glStencilOp.
GL_STENCIL_VALUE_MASK
params
returns one value,
the mask that is used to mask both the stencil reference value and the
stencil buffer value before they are compared. The initial value is all 1's.
See glStencilFunc.
If the GL version is 2.0 or greater, this stencil state only affects non-polygons
and front-facing polygons. Back-facing polygons use separate stencil state.
See glStencilFuncSeparate.
GL_STENCIL_WRITEMASK
params
returns one value,
the mask that controls writing of the stencil bitplanes. The initial value
is all 1's.
See glStencilMask.
If the GL version is 2.0 or greater, this stencil state only affects non-polygons
and front-facing polygons. Back-facing polygons use separate stencil state.
See glStencilMaskSeparate.
GL_STEREO
params
returns a single boolean value indicating whether stereo buffers
(left and right) are supported.
GL_SUBPIXEL_BITS
params
returns one value,
an estimate of the number of bits of subpixel resolution that are used to
position rasterized geometry in window coordinates. The value must be at least 4.
GL_TEXTURE_1D
params
returns a single boolean value indicating whether 1D texture
mapping is enabled. The initial value is GL_FALSE
.
See glTexImage1D.
GL_TEXTURE_BINDING_1D
params
returns a single value, the name of the texture
currently bound to the target GL_TEXTURE_1D
. The initial value is 0.
See glBindTexture.
GL_TEXTURE_2D
params
returns a single boolean value indicating whether 2D texture
mapping is enabled. The initial value is GL_FALSE
.
See glTexImage2D.
GL_TEXTURE_BINDING_2D
params
returns a single value, the name of the texture
currently bound to the target GL_TEXTURE_2D
. The initial value is 0.
See glBindTexture.
GL_TEXTURE_3D
params
returns a single boolean value indicating whether 3D texture
mapping is enabled. The initial value is GL_FALSE
.
See glTexImage3D.
GL_TEXTURE_BINDING_3D
params
returns a single value, the name of the texture
currently bound to the target GL_TEXTURE_3D
. The initial value is 0.
See glBindTexture.
GL_TEXTURE_BINDING_CUBE_MAP
params
returns a single value, the name of the texture
currently bound to the target GL_TEXTURE_CUBE_MAP
. The initial value is 0.
See glBindTexture.
GL_TEXTURE_COMPRESSION_HINT
params
returns a single value indicating the mode of the texture
compression hint. The initial value is GL_DONT_CARE
.
GL_TEXTURE_COORD_ARRAY
params
returns a single boolean value indicating whether the texture
coordinate array is enabled. The initial value is GL_FALSE
.
See glTexCoordPointer.
GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING
params
returns a single value, the name of the buffer object
associated with the texture coordinate array. This buffer object would have been bound to the
target GL_ARRAY_BUFFER
at the time of the most recent call to
glTexCoordPointer.
If no buffer object was bound to this target, 0 is returned. The initial value is 0.
See glBindBuffer.
GL_TEXTURE_COORD_ARRAY_SIZE
params
returns one value,
the number of coordinates per element in the texture coordinate
array. The initial value is 4.
See glTexCoordPointer.
GL_TEXTURE_COORD_ARRAY_STRIDE
params
returns one value,
the byte offset between consecutive elements in the texture coordinate
array. The initial value is 0.
See glTexCoordPointer.
GL_TEXTURE_COORD_ARRAY_TYPE
params
returns one value,
the data type of the coordinates in the texture coordinate
array. The initial value is GL_FLOAT
.
See glTexCoordPointer.
GL_TEXTURE_CUBE_MAP
params
returns a single boolean value indicating whether cube-mapped texture
mapping is enabled. The initial value is GL_FALSE
.
See glTexImage2D.
GL_TEXTURE_GEN_Q
params
returns a single boolean value indicating whether automatic generation
of the q texture coordinate is enabled. The initial value is GL_FALSE
.
See glTexGen.
GL_TEXTURE_GEN_R
params
returns a single boolean value indicating whether automatic generation
of the r texture coordinate is enabled. The initial value is GL_FALSE
.
See glTexGen.
GL_TEXTURE_GEN_S
params
returns a single boolean value indicating whether automatic generation
of the S texture coordinate is enabled. The initial value is GL_FALSE
.
See glTexGen.
GL_TEXTURE_GEN_T
params
returns a single boolean value indicating whether automatic generation
of the T texture coordinate is enabled. The initial value is GL_FALSE
.
See glTexGen.
GL_TEXTURE_MATRIX
params
returns sixteen values:
the texture matrix on the top of the texture matrix stack. Initially this
matrix is the identity matrix.
See glPushMatrix.
GL_TEXTURE_STACK_DEPTH
params
returns one value,
the number of matrices on the texture matrix stack.
The initial value is 1.
See glPushMatrix.
GL_TRANSPOSE_COLOR_MATRIX
params
returns 16 values, the elements of the color matrix in row-major
order.
See glLoadTransposeMatrix.
GL_TRANSPOSE_MODELVIEW_MATRIX
params
returns 16 values, the elements of the modelview matrix in row-major
order.
See glLoadTransposeMatrix.
GL_TRANSPOSE_PROJECTION_MATRIX
params
returns 16 values, the elements of the projection matrix in row-major
order.
See glLoadTransposeMatrix.
GL_TRANSPOSE_TEXTURE_MATRIX
params
returns 16 values, the elements of the texture matrix in row-major
order.
See glLoadTransposeMatrix.
GL_UNPACK_ALIGNMENT
params
returns one value,
the byte alignment used for reading pixel data from memory. The initial
value is 4.
See glPixelStore.
GL_UNPACK_IMAGE_HEIGHT
params
returns one value,
the image height used for reading pixel data from memory. The initial
is 0.
See glPixelStore.
GL_UNPACK_LSB_FIRST
params
returns a single boolean value indicating whether single-bit
pixels being read from memory are read first from the least significant
bit of each unsigned byte. The initial value is GL_FALSE
.
See glPixelStore.
GL_UNPACK_ROW_LENGTH
params
returns one value,
the row length used for reading pixel data from memory. The initial value
is 0.
See glPixelStore.
GL_UNPACK_SKIP_IMAGES
params
returns one value,
the number of pixel images skipped before the first pixel is read
from memory. The initial value is 0.
See glPixelStore.
GL_UNPACK_SKIP_PIXELS
params
returns one value,
the number of pixel locations skipped before the first pixel is read
from memory. The initial value is 0.
See glPixelStore.
GL_UNPACK_SKIP_ROWS
params
returns one value,
the number of rows of pixel locations skipped before the first pixel is read
from memory. The initial value is 0.
See glPixelStore.
GL_UNPACK_SWAP_BYTES
params
returns a single boolean value indicating whether the bytes of
two-byte and four-byte pixel indices and components are swapped after being
read from memory. The initial value is GL_FALSE
.
See glPixelStore.
GL_VERTEX_ARRAY
params
returns a single boolean value indicating whether the vertex
array is enabled. The initial value is GL_FALSE
.
See glVertexPointer.
GL_VERTEX_ARRAY_BUFFER_BINDING
params
returns a single value, the name of the buffer object
associated with the vertex array. This buffer object would have been bound to the
target GL_ARRAY_BUFFER
at the time of the most recent call to
glVertexPointer.
If no buffer object was bound to this target, 0 is returned. The initial value is 0.
See glBindBuffer.
GL_VERTEX_ARRAY_SIZE
params
returns one value,
the number of coordinates per vertex in the vertex array. The initial
value is 4.
See glVertexPointer.
GL_VERTEX_ARRAY_STRIDE
params
returns one value,
the byte offset between consecutive vertices in the vertex
array. The initial value is 0.
See glVertexPointer.
GL_VERTEX_ARRAY_TYPE
params
returns one value,
the data type of each coordinate in the vertex array. The initial value is
GL_FLOAT
.
See glVertexPointer.
GL_VERTEX_PROGRAM_POINT_SIZE
params
returns a single boolean value indicating whether vertex
program point size mode is enabled. If enabled, and a vertex shader is active, then the
point size is taken from the shader built-in gl_PointSize
. If disabled,
and a vertex shader is active, then the point size is taken from the point state as specified
by glPointSize.
The initial value is GL_FALSE
.
GL_VERTEX_PROGRAM_TWO_SIDE
params
returns a single boolean value indicating whether vertex
program two-sided color mode is enabled. If enabled, and a vertex shader is active, then the
GL chooses the back color output for back-facing polygons, and the front color output for
non-polygons and front-facing polygons. If disabled, and a vertex shader is active, then the
front color output is always selected. The initial value is GL_FALSE
.
GL_VIEWPORT
params
returns four values:
the
GL_ZOOM_X
params
returns one value,
the
GL_ZOOM_Y
params
returns one value,
the
Many of the boolean parameters can also be queried more easily using glIsEnabled.
GL_COLOR_LOGIC_OP
,
GL_COLOR_ARRAY
,
GL_COLOR_ARRAY_SIZE
,
GL_COLOR_ARRAY_STRIDE
,
GL_COLOR_ARRAY_TYPE
,
GL_EDGE_FLAG_ARRAY
,
GL_EDGE_FLAG_ARRAY_STRIDE
,
GL_INDEX_ARRAY
,
GL_INDEX_ARRAY_STRIDE
,
GL_INDEX_ARRAY_TYPE
,
GL_INDEX_LOGIC_OP
,
GL_NORMAL_ARRAY
,
GL_NORMAL_ARRAY_STRIDE
,
GL_NORMAL_ARRAY_TYPE
,
GL_POLYGON_OFFSET_UNITS
,
GL_POLYGON_OFFSET_FACTOR
,
GL_POLYGON_OFFSET_FILL
,
GL_POLYGON_OFFSET_LINE
,
GL_POLYGON_OFFSET_POINT
,
GL_TEXTURE_COORD_ARRAY
,
GL_TEXTURE_COORD_ARRAY_SIZE
,
GL_TEXTURE_COORD_ARRAY_STRIDE
,
GL_TEXTURE_COORD_ARRAY_TYPE
,
GL_VERTEX_ARRAY
,
GL_VERTEX_ARRAY_SIZE
,
GL_VERTEX_ARRAY_STRIDE
, and
GL_VERTEX_ARRAY_TYPE
are available only if the GL version is 1.1 or greater.
GL_ALIASED_POINT_SIZE_RANGE
,
GL_FEEDBACK_BUFFER_SIZE
,
GL_FEEDBACK_BUFFER_TYPE
,
GL_LIGHT_MODEL_AMBIENT
,
GL_LIGHT_MODEL_COLOR_CONTROL
,
GL_MAX_3D_TEXTURE_SIZE
,
GL_MAX_ELEMENTS_INDICES
,
GL_MAX_ELEMENTS_VERTICES
,
GL_PACK_IMAGE_HEIGHT
,
GL_PACK_SKIP_IMAGES
,
GL_RESCALE_NORMAL
,
GL_SELECTION_BUFFER_SIZE
,
GL_SMOOTH_LINE_WIDTH_GRANULARITY
,
GL_SMOOTH_LINE_WIDTH_RANGE
,
GL_SMOOTH_POINT_SIZE_GRANULARITY
,
GL_SMOOTH_POINT_SIZE_RANGE
,
GL_TEXTURE_3D
,
GL_TEXTURE_BINDING_3D
,
GL_UNPACK_IMAGE_HEIGHT
, and
GL_UNPACK_SKIP_IMAGES
are available only if the GL version is 1.2 or greater.
GL_COMPRESSED_TEXTURE_FORMATS
,
GL_NUM_COMPRESSED_TEXTURE_FORMATS
,
GL_TEXTURE_BINDING_CUBE_MAP
, and
GL_TEXTURE_COMPRESSION_HINT
are available only if the GL version is 1.3 or greater.
GL_BLEND_DST_ALPHA
,
GL_BLEND_DST_RGB
,
GL_BLEND_SRC_ALPHA
,
GL_BLEND_SRC_RGB
,
GL_CURRENT_FOG_COORD
,
GL_CURRENT_SECONDARY_COLOR
,
GL_FOG_COORD_ARRAY_STRIDE
,
GL_FOG_COORD_ARRAY_TYPE
,
GL_FOG_COORD_SRC
,
GL_MAX_TEXTURE_LOD_BIAS
,
GL_POINT_SIZE_MIN
,
GL_POINT_SIZE_MAX
,
GL_POINT_FADE_THRESHOLD_SIZE
,
GL_POINT_DISTANCE_ATTENUATION
,
GL_SECONDARY_COLOR_ARRAY_SIZE
,
GL_SECONDARY_COLOR_ARRAY_STRIDE
, and
GL_SECONDARY_COLOR_ARRAY_TYPE
are available only if the GL version is 1.4 or greater.
GL_ARRAY_BUFFER_BINDING
,
GL_COLOR_ARRAY_BUFFER_BINDING
,
GL_EDGE_FLAG_ARRAY_BUFFER_BINDING
,
GL_ELEMENT_ARRAY_BUFFER_BINDING
,
GL_FOG_COORD_ARRAY_BUFFER_BINDING
,
GL_INDEX_ARRAY_BUFFER_BINDING
,
GL_NORMAL_ARRAY_BUFFER_BINDING
,
GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING
,
GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING
, and
GL_VERTEX_ARRAY_BUFFER_BINDING
are available only if the GL version is 1.5 or greater.
GL_BLEND_EQUATION_ALPHA
,
GL_BLEND_EQUATION_RGB
,
GL_DRAW_BUFFER
i,
GL_FRAGMENT_SHADER_DERIVATIVE_HINT
,
GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS
,
GL_MAX_DRAW_BUFFERS
,
GL_MAX_FRAGMENT_UNIFORM_COMPONENTS
,
GL_MAX_TEXTURE_COORDS
,
GL_MAX_TEXTURE_IMAGE_UNITS
,
GL_MAX_VARYING_FLOATS
,
GL_MAX_VERTEX_ATTRIBS
,
GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS
,
GL_MAX_VERTEX_UNIFORM_COMPONENTS
,
GL_POINT_SPRITE
,
GL_STENCIL_BACK_FAIL
,
GL_STENCIL_BACK_FUNC
,
GL_STENCIL_BACK_PASS_DEPTH_FAIL
,
GL_STENCIL_BACK_PASS_DEPTH_PASS
,
GL_STENCIL_BACK_REF
,
GL_STENCIL_BACK_VALUE_MASK
,
GL_STENCIL_BACK_WRITEMASK
,
GL_VERTEX_PROGRAM_POINT_SIZE
, and
GL_VERTEX_PROGRAM_TWO_SIDE
are available only if the GL version is 2.0 or greater.
GL_CURRENT_RASTER_SECONDARY_COLOR
,
GL_PIXEL_PACK_BUFFER_BINDING
and
GL_PIXEL_UNPACK_BUFFER_BINDING
are available only if the GL version is 2.1 or greater.
GL_LINE_WIDTH_GRANULARITY
was deprecated in GL version 1.2. Its
functionality was replaced by GL_SMOOTH_LINE_WIDTH_GRANULARITY
.
GL_LINE_WIDTH_RANGE
was deprecated in GL version 1.2. Its
functionality was replaced by GL_SMOOTH_LINE_WIDTH_RANGE
.
GL_POINT_SIZE_GRANULARITY
was deprecated in GL version 1.2. Its
functionality was replaced by GL_SMOOTH_POINT_SIZE_GRANULARITY
.
GL_POINT_SIZE_RANGE
was deprecated in GL version 1.2. Its
functionality was replaced by GL_SMOOTH_POINT_SIZE_RANGE
.
GL_BLEND_EQUATION
was deprecated in GL version 2.0. Its
functionality was replaced by GL_BLEND_EQUATION_RGB
and
GL_BLEND_EQUATION_ALPHA
.
GL_COLOR_MATRIX
,
GL_COLOR_MATRIX_STACK_DEPTH
,
GL_COLOR_TABLE
,
GL_CONVOLUTION_1D
,
GL_CONVOLUTION_2D
,
GL_HISTOGRAM
,
GL_MAX_COLOR_MATRIX_STACK_DEPTH
,
GL_MINMAX
,
GL_POST_COLOR_MATRIX_COLOR_TABLE
,
GL_POST_COLOR_MATRIX_RED_BIAS
,
GL_POST_COLOR_MATRIX_GREEN_BIAS
,
GL_POST_COLOR_MATRIX_BLUE_BIAS
,
GL_POST_COLOR_MATRIX_ALPHA_BIAS
,
GL_POST_COLOR_MATRIX_RED_SCALE
,
GL_POST_COLOR_MATRIX_GREEN_SCALE
,
GL_POST_COLOR_MATRIX_BLUE_SCALE
,
GL_POST_COLOR_MATRIX_ALPHA_SCALE
,
GL_POST_CONVOLUTION_COLOR_TABLE
,
GL_POST_CONVOLUTION_RED_BIAS
,
GL_POST_CONVOLUTION_GREEN_BIAS
,
GL_POST_CONVOLUTION_BLUE_BIAS
,
GL_POST_CONVOLUTION_ALPHA_BIAS
,
GL_POST_CONVOLUTION_RED_SCALE
,
GL_POST_CONVOLUTION_GREEN_SCALE
,
GL_POST_CONVOLUTION_BLUE_SCALE
,
GL_POST_CONVOLUTION_ALPHA_SCALE
, and
GL_SEPARABLE_2D
are available only if ARB_imaging
is returned from glGet
when called with the argument GL_EXTENSIONS
.
When the ARB_multitexture
extension is supported, or the GL version
is 1.3 or greater, the following
parameters return the associated value for the active texture unit:
GL_CURRENT_RASTER_TEXTURE_COORDS
,
GL_TEXTURE_1D
, GL_TEXTURE_BINDING_1D
,
GL_TEXTURE_2D
, GL_TEXTURE_BINDING_2D
,
GL_TEXTURE_3D
, GL_TEXTURE_BINDING_3D
,
GL_TEXTURE_GEN_S
,
GL_TEXTURE_GEN_T
,
GL_TEXTURE_GEN_R
,
GL_TEXTURE_GEN_Q
,
GL_TEXTURE_MATRIX
, and
GL_TEXTURE_STACK_DEPTH
.
Likewise, the following parameters return the associated value for the
active client texture unit:
GL_TEXTURE_COORD_ARRAY
,
GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING
,
GL_TEXTURE_COORD_ARRAY_SIZE
,
GL_TEXTURE_COORD_ARRAY_STRIDE
,
GL_TEXTURE_COORD_ARRAY_TYPE
.
GL_INVALID_ENUM
is generated if pname
is not an accepted value.
GL_INVALID_OPERATION
is generated if glGet
is executed between the execution of glBegin
and the corresponding execution of glEnd.
glGetActiveAttrib, glGetActiveUniform, glGetAttachedShaders, glGetAttribLocation, glGetBufferParameteriv, glGetBufferPointerv, glGetBufferSubData, glGetClipPlane, glGetColorTable, glGetColorTableParameter, glGetCompressedTexImage, glGetConvolutionFilter, glGetConvolutionParameter, glGetError, glGetHistogram, glGetHistogramParameter, glGetLight, glGetMap, glGetMaterial, glGetMinmax, glGetMinmaxParameter, glGetPixelMap, glGetPointerv, glGetPolygonStipple, glGetProgram, glGetProgramInfoLog, glGetQueryiv, glGetQueryObject, glGetSeparableFilter, glGetShader, glGetShaderInfoLog, glGetShaderSource, glGetString, glGetTexEnv, glGetTexGen, glGetTexImage, glGetTexLevelParameter, glGetTexParameter, glGetUniform, glGetUniformLocation, glGetVertexAttrib, glGetVertexAttribPointerv, glIsEnabled
Copyright © 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/.