Signature
Parameters
Variables | Description |
---|---|
target |
Specifies the target to which the texture is bound for
glGetTexParameterfv
,
glGetTexParameteriv
,
glGetTexParameterIiv
, and
glGetTexParameterIuiv
functions.
GL_TEXTURE_1D
,
GL_TEXTURE_1D_ARRAY
,
GL_TEXTURE_2D
,
GL_TEXTURE_2D_ARRAY
,
GL_TEXTURE_2D_MULTISAMPLE
,
GL_TEXTURE_2D_MULTISAMPLE_ARRAY
,
GL_TEXTURE_3D
,
GL_TEXTURE_CUBE_MAP
,
GL_TEXTURE_RECTANGLE
, and
GL_TEXTURE_CUBE_MAP_ARRAY
are accepted.
|
texture |
Specifies the texture object name for
glGetTextureParameterfv
,
glGetTextureParameteriv
,
glGetTextureParameterIiv
, and
glGetTextureParameterIuiv
functions.
|
pname |
Specifies the symbolic name of a texture parameter.
GL_DEPTH_STENCIL_TEXTURE_MODE
,
GL_IMAGE_FORMAT_COMPATIBILITY_TYPE
,
GL_TEXTURE_BASE_LEVEL
,
GL_TEXTURE_BORDER_COLOR
,
GL_TEXTURE_COMPARE_MODE
,
GL_TEXTURE_COMPARE_FUNC
,
GL_TEXTURE_IMMUTABLE_FORMAT
,
GL_TEXTURE_IMMUTABLE_LEVELS
,
GL_TEXTURE_LOD_BIAS
,
GL_TEXTURE_MAG_FILTER
,
GL_TEXTURE_MAX_LEVEL
,
GL_TEXTURE_MAX_LOD
,
GL_TEXTURE_MIN_FILTER
,
GL_TEXTURE_MIN_LOD
,
GL_TEXTURE_SWIZZLE_R
,
GL_TEXTURE_SWIZZLE_G
,
GL_TEXTURE_SWIZZLE_B
,
GL_TEXTURE_SWIZZLE_A
,
GL_TEXTURE_SWIZZLE_RGBA
,
GL_TEXTURE_TARGET
,
GL_TEXTURE_VIEW_MIN_LAYER
,
GL_TEXTURE_VIEW_MIN_LEVEL
,
GL_TEXTURE_VIEW_NUM_LAYERS
,
GL_TEXTURE_VIEW_NUM_LEVELS
,
GL_TEXTURE_WRAP_S
,
GL_TEXTURE_WRAP_T
, and
GL_TEXTURE_WRAP_R
are accepted.
|
params |
Returns the texture parameters.
|
Description
glGetTexParameter
and
glGetTextureParameter
return 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
,
GL_TEXTURE_2D_MULTISAMPLE
, or
GL_TEXTURE_2D_MULTISAMPLE_ARRAY
specify one-, two-,
or three-dimensional, one-dimensional array, two-dimensional array,
rectangle, cube-mapped or cube-mapped array, two-dimensional multisample,
or two-dimensional multisample array texturing, respectively.
pname
accepts the same symbols as
glTexParameter
,
with the same interpretations:
- GL_DEPTH_STENCIL_TEXTURE_MODE
-
Returns the single-value depth stencil texture mode, a symbolic constant. The initial value is GL_DEPTH_COMPONENT .
- GL_TEXTURE_MAG_FILTER
-
Returns the single-valued texture magnification filter, a symbolic constant. The initial value is GL_LINEAR .
- GL_TEXTURE_MIN_FILTER
-
Returns the single-valued texture minification filter, a symbolic constant. The initial value is GL_NEAREST_MIPMAP_LINEAR .
- GL_TEXTURE_MIN_LOD
-
Returns the single-valued texture minimum level-of-detail value. The initial value is -1000 .
- GL_TEXTURE_MAX_LOD
-
Returns the single-valued texture maximum level-of-detail value. The initial value is 1000.
- GL_TEXTURE_BASE_LEVEL
-
Returns the single-valued base texture mipmap level. The initial value is 0.
- GL_TEXTURE_MAX_LEVEL
-
Returns the single-valued maximum texture mipmap array level. The initial value is 1000.
- GL_TEXTURE_SWIZZLE_R
-
Returns the red component swizzle. The initial value is GL_RED .
- GL_TEXTURE_SWIZZLE_G
-
Returns the green component swizzle. The initial value is GL_GREEN .
- GL_TEXTURE_SWIZZLE_B
-
Returns the blue component swizzle. The initial value is GL_BLUE .
- GL_TEXTURE_SWIZZLE_A
-
Returns the alpha component swizzle. The initial value is GL_ALPHA .
- GL_TEXTURE_SWIZZLE_RGBA
-
Returns the component swizzle for all channels in a single query.
- GL_TEXTURE_WRAP_S
-
Returns the single-valued wrapping function for texture coordinate s , a symbolic constant. The initial value is GL_REPEAT .
- GL_TEXTURE_WRAP_T
-
Returns the single-valued wrapping function for texture coordinate t , a symbolic constant. The initial value is GL_REPEAT .
- GL_TEXTURE_WRAP_R
-
Returns the single-valued wrapping function for texture coordinate r , a symbolic constant. The initial value is GL_REPEAT .
- GL_TEXTURE_BORDER_COLOR
-
Returns four integer or floating-point numbers that comprise the RGBA color of the texture border. Floating-point values are returned in the range [0,1] . Integer values are returned as a linear mapping of the internal floating-point representation such that 1.0 maps to the most positive representable integer and -1.0 maps to the most negative representable integer. The initial value is (0, 0, 0, 0).
- GL_TEXTURE_COMPARE_MODE
-
Returns a single-valued texture comparison mode, a symbolic constant. The initial value is GL_NONE . See glTexParameter .
- GL_TEXTURE_COMPARE_FUNC
-
Returns a single-valued texture comparison function, a symbolic constant. The initial value is GL_LEQUAL . See glTexParameter .
- GL_TEXTURE_VIEW_MIN_LEVEL
-
Returns a single-valued base level of a texture view relative to its parent. The initial value is 0. See glTextureView .
- GL_TEXTURE_VIEW_NUM_LEVELS
-
Returns a single-valued number of levels of detail of a texture view. See glTextureView .
- GL_TEXTURE_VIEW_MIN_LAYER
-
Returns a single-valued first level of a texture array view relative to its parent. See glTextureView .
- GL_TEXTURE_VIEW_NUM_LAYERS
-
Returns a single-valued number of layers in a texture array view. See glTextureView .
- GL_TEXTURE_IMMUTABLE_LEVELS
-
Returns a single-valued number of immutable texture levels in a texture view. See glTextureView .
In addition to the parameters that may be set with
glTexParameter
,
glGetTexParameter
and
glGetTextureParameter
accept the following
read-only parameters:
- GL_IMAGE_FORMAT_COMPATIBILITY_TYPE
-
Returns the matching criteria use for the texture when used as an image texture. Can return GL_IMAGE_FORMAT_COMPATIBILITY_BY_SIZE , GL_IMAGE_FORMAT_COMPATIBILITY_BY_CLASS or GL_NONE .
- GL_TEXTURE_IMMUTABLE_FORMAT
-
Returns non-zero if the texture has an immutable format. Textures become immutable if their storage is specified with glTexStorage1D , glTexStorage2D or glTexStorage3D . The initial value is GL_FALSE .
- GL_TEXTURE_TARGET
-
Returns the effective target of the texture object. For glGetTex*Parameter functions, this is the target parameter. For glGetTextureParameter* , it is the target to which the texture was initially bound when it was created, or the value of the target parameter to the call to glCreateTextures which created the texture.
Notes
If an error is generated, no change is made to the contents of
params
.
GL_IMAGE_FORMAT_COMPATIBILITY_TYPE
is available
only if the GL version is 4.2 or greater.
GL_DEPTH_STENCIL_TEXTURE_MODE
,
GL_TEXTURE_VIEW_MIN_LEVEL
,
GL_TEXTURE_VIEW_NUM_LEVELS
,
GL_TEXTURE_VIEW_MIN_LAYER
,
GL_TEXTURE_VIEW_NUM_LAYERS
and
GL_TEXTURE_IMMUTABLE_LEVELS
are available only if the
GL version is 4.3 or greater.
GL_TEXTURE_TARGET
are available only if the GL
version is 4.5 or greater.
Errors
GL_INVALID_ENUM
is generated if
pname
is not an accepted value.
GL_INVALID_ENUM
error is generated by
glGetTexParameter
if the effective
target
is not one of the accepted texture
targets.
GL_INVALID_OPERATION
is generated by
glGetTextureParameter*
if
texture
is not the name of an existing texture
object.
Version Support
glGetTexParameterIiv | |
glGetTexParameterIuiv | |
glGetTexParameterfv | |
glGetTexParameteriv | |
glGetTextureParameterIiv | |
glGetTextureParameterIuiv | |
glGetTextureParameterfv | |
glGetTextureParameteriv |
See Also
Copyright
Copyright
1991-2006 Silicon Graphics, Inc.
Copyright
2010-2014 Khronos Group.
This document is licensed under the SGI
Free Software B License. For details, see
http://oss.sgi.com/projects/FreeB/
.