glPixelStore(3G) OpenGL Reference glPixelStore(3G)
glPixelStoref, glPixelStorei - set pixel storage modes
void glPixelStoref( GLenum pname,
GLfloat param )
void glPixelStorei( GLenum pname,
GLint param )
pname Specifies the symbolic name of the parameter to be set. Twelve
values affect the packing of pixel data into memory:
GL_PACK_SWAP_BYTES, GL_PACK_LSB_FIRST, GL_PACK_ROW_LENGTH,
GL_PACK_IMAGE_HEIGHT, GL_PACK_IMAGE_DEPTH_SGIS,
GL_PACK_SKIP_PIXELS, GL_PACK_SKIP_ROWS, GL_PACK_SKIP_IMAGES,
GL_PACK_SKIP_VOLUMES_SGIS, GL_PACK_ALIGNMENT,
GL_PACK_SUBSAMPLE_RATE_SGIX, and GL_PACK_RESAMPLE_SGIX. Twelve
more affect the unpacking of pixel data from memory:
GL_UNPACK_SWAP_BYTES, GL_UNPACK_LSB_FIRST, GL_UNPACK_ROW_LENGTH,
GL_UNPACK_IMAGE_HEIGHT, GL_UNPACK_IMAGE_DEPTH_SGIS,
GL_UNPACK_SKIP_PIXELS, GL_UNPACK_SKIP_ROWS, GL_UNPACK_SKIP_IMAGES,
GL_UNPACK_SKIP_VOLUMES_SGIS, GL_UNPACK_ALIGNMENT,
GL_UNPACK_SUBSAMPLE_RATE_SGIX, and GL_UNPACK_RESAMPLE_SGIX.
param Specifies the value that pname is set to.
glPixelStore sets pixel storage modes that affect the operation of
subsequent glDrawPixels and glReadPixels as well as the unpacking of
polygon stipple patterns (see glPolygonStipple), bitmaps (see glBitmap),
and texture patterns (see glTexImage1D, glTexImage2D, glTexImage3D,
glTexImage4DSGIS, glTexSubImage1D, glTexSubImage2D, glTexSubImage3D, and
glTexSubImage4DSGIS). Additionally, if the GL_ARB_imaging extension is
supported, pixel storage modes affect convolution filters (see
glConvolutionFilter1D, glConvolutionFilter2D, and glSeparableFilter2D),
color tables (see glColorTable and glColorSubTable), and unpacking
histogram (see glHistogram) and minmax (see glMinmax) data.
pname is a symbolic constant indicating the parameter to be set, and
param is the new value. Twelve of the twenty-four storage parameters
affect how pixel data is returned to client memory. They are as follows:
GL_PACK_SWAP_BYTES [Toc] [Back]
If true, byte ordering for multibyte color components, depth
components, color indices, or stencil indices is reversed.
That is, if a four-byte component consists of bytes b , b , b ,
0 1 2
b , it is stored in memory as b , b , b , b if
3 3 2 1 0
GL_PACK_SWAP_BYTES is true. GL_PACK_SWAP_BYTES has no effect
on the memory order of components within a pixel, only on the
order of bytes within components or indices. For example, the
Page 1
glPixelStore(3G) OpenGL Reference glPixelStore(3G)
three components of a GL_RGB format pixel are always stored
with red first, green second, and blue third, regardless of the
value of GL_PACK_SWAP_BYTES.
GL_PACK_LSB_FIRST [Toc] [Back]
If true, bits are ordered within a byte from least significant
to most significant; otherwise, the first bit in each byte is
the most significant one. This parameter is significant for
bitmap data only.
GL_PACK_ROW_LENGTH [Toc] [Back]
If greater than 0, GL_PACK_ROW_LENGTH defines the number of
pixels in a row. If the first pixel of a row is placed at
location p in memory, then the location of the first pixel of
the next row is obtained by skipping
(
|nl s > a
k = |
_|___| s < a
|
s| a |
(
components or indices, where n is the number of components or
indices in a pixel, l is the number of pixels in a row
(GL_PACK_ROW_LENGTH if it is greater than 0, the width argument
to the pixel routine otherwise), a is the value of
GL_PACK_ALIGNMENT, and s is the size, in bytes, of a single
component (if a<s, then it is as if a = s). In the case of 1-
bit values, the location of the next row is obtained by
skipping
|__|
k = 8a
|8a|
components or indices.
The word component in this description refers to the nonindex
values red, green, blue, alpha, and depth. Storage format
GL_RGB, for example, has three components per pixel: first
red, then green, and finally blue.
GL_PACK_IMAGE_HEIGHT [Toc] [Back]
If greater than 0, GL_PACK_IMAGE_HEIGHT defines the number of
pixels in an image of a three-dimensional texture volume, where
an ``image'' consists of all pixels sharing the same third
dimension index. If the first pixel of an image is placed at
location p in memory, then the location of the first pixel of
the next image is obtained by skipping
(
| nlh s > a
k = |
_|____| s < a
|
s| a |
(
Page 2
glPixelStore(3G) OpenGL Reference glPixelStore(3G)
components or indices, where n is the number of components or
indices in a pixel, l is the number of pixels in a row
(GL_PACK_ROW_LENGTH if it is greater than 0, the width
argument to glTexImage3D otherwise), h is the number of rows in
a pixel image (GL_PACK_IMAGE_HEIGHT if it is greater than 0,
the height argument to the glTexImage3D routine otherwise), a
is the value of GL_PACK_ALIGNMENT, and s is the size, in bytes,
of a single component (if a<s, then it is as if a=s).
The word component in this description refers to the nonindex
values red, green, blue, alpha, and depth. Storage format
GL_RGB, for example, has three components per pixel: first
red, then green, and finally blue.
GL_PACK_IMAGE_DEPTH_SGIS [Toc] [Back]
If greater than 0, GL_PACK_IMAGE_DEPTH_SGIS defines the number
of pixels in a volume of a four-dimensional texture
hypervolume, where a ``volume'' consists of all pixels sharing
the same fourth dimension index. If the first pixel of a
volume is placed at location p in memory, then the location of
the first pixel of the next volume is obtained by skipping
(
| nlhd s > a
k = |
_|_____| s < a
|
s| a |
(
components or indices, where n is the number of components or
indices in a pixel, l is the number of pixels in a row
(GL_PACK_ROW_LENGTH if it is greater than 0, the width argument
to glTexImage4DSGIS otherwise, h is the number of rows in a
pixel image (GL_PACK_IMAGE_HEIGHT if it is greater than 0, the
height argument to the glTexImage4DSGIS routine otherwise), d
is the number of images in a volume (GL_PACK_IMAGE_DEPTH_SGIS
if it is greater than 0, the depth argument to the
glTexImage4DSGIS routine otherwise), a is the value of
GL_PACK_ALIGNMENT, and s is the size, in bytes, of a single
component (if a<s, then it is as if a=s).
The word component in this description refers to the nonindex
values red, green, blue, alpha, and depth. Storage format
GL_RGB, for example, has three components per pixel: first
red, then green, and finally blue.
GL_PACK_SKIP_PIXELS, GL_PACK_SKIP_ROWS, GL_PACK_SKIP_IMAGES,
and GL_PACK_SKIP_VOLUMES_SGIS
These values are provided as a convenience to the programmer;
they provide no functionality that cannot be duplicated simply
by incrementing the pointer passed to glReadPixels. Setting
GL_PACK_SKIP_PIXELS to i is equivalent to incrementing the
pointer by in components or indices, where n is the number of
components or indices in each pixel. Setting GL_PACK_SKIP_ROWS
Page 3
glPixelStore(3G) OpenGL Reference glPixelStore(3G)
to j is equivalent to incrementing the pointer by jm components
or indices, where m is the number of components or indices per
row, as just computed in the GL_PACK_ROW_LENGTH section.
Setting GL_PACK_SKIP_IMAGES to k is equivalent to incrementing
the pointer by kp, where p is the number of components or
indices per image, as computed in the GL_PACK_IMAGE_HEIGHT
section. Setting GL_PACK_SKIP_VOLUMES_SGIS to k is equivalent
to incrementing the pointer by kp, where p is the number of
components or indices per volume, as computed in the
GL_PACK_IMAGE_DEPTH_SGIS section.
GL_PACK_ALIGNMENT [Toc] [Back]
Specifies the alignment requirements for the start of each
pixel row in memory. The allowable values are 1 (bytealignment),
2 (rows aligned to even-numbered bytes), 4 (wordalignment),
and 8 (rows start on double-word boundaries).
GL_PACK_SUBSAMPLE_RATE_SGIX [Toc] [Back]
Specifies the subsample conversion rate that is applied to
packed pixel stores. The accepted param values are
GL_PIXEL_SUBSAMPLE_4444_SGIX, GL_PIXEL_SUBSAMPLE_2424_SGIX, and
GL_PIXEL_SUBSAMPLE_4242_SGIX. When set to other than the
default GL_PIXEL_SUBSAMPLE_4444_SGIX value, RGB and RGBA pixel
groups are sampled to produce two-value packed pixel groups.
The width argument to the pixel routine must be a multiple of 2
pixels. The red, green, and blue components of the pixel are
sampled in the order specified by the destination format. When
a 4-component format is specified, the alpha component is
ignored. Subsampled pixel pairs are packed as follows:
2424 - decimate : 4242 - decimate :
<U00,U01,U02> <U10,U11,U12> <U00,U01,U02> <U10,U11,U12>
| | | | | | |___ ___|
| | | | \ / \ /
| | \ / X X
| | \ / / \ / \
| | | | | | | |
V V V V V V V V
<P00,P01> <P10,P11> <P00,P01> <P10,P11>
GL_PACK_RESAMPLE_SGIX [Toc] [Back]
Specifies the resample mode in effect when a pack subsample
rate is being applied. The only currently allowable value is
GL_RESAMPLE_DECIMATE_SGIX. When the subsample rate is not
uniform for all components, the components that are sampled at
the lower-rate in the second group of each pixel pair are
ignored.
Page 4
glPixelStore(3G) OpenGL Reference glPixelStore(3G)
The other twelve of the twenty-four storage parameters affect how pixel
data is read from client memory. These values are significant for
glDrawPixels, glTexImage1D, glTexImage2D, glTexImage3D, glTexImage4DSGIS,
glTexSubImage1D, glTexSubImage2D, glTexSubImage3D, glTexSubImage4DSGIS,
glBitmap, and glPolygonStipple.
Additionally, if the GL_ARB_imaging extension is supported, glColorTable,
glColorSubTable, glConvolutionFilter1D, glConvolutionFilter2D, and
glSeparableFilter2D. They are as follows:
GL_UNPACK_SWAP_BYTES [Toc] [Back]
If true, byte ordering for multibyte color components, depth
components, color indices, or stencil indices is reversed. That is,
if a four-byte component consists of bytes b , b , b , b , it is
0 1 2 3
taken from memory as b , b , b , b if GL_UNPACK_SWAP_BYTES is true.
3 2 1 0
GL_UNPACK_SWAP_BYTES has no effect on the memory order of components
within a pixel, only on the order of bytes within components or
indices. For example, the three components of a GL_RGB format pixel
are always stored with red first, green second, and blue third,
regardless of the value of GL_UNPACK_SWAP_BYTES.
GL_UNPACK_LSB_FIRST [Toc] [Back]
If true, bits are ordered within a byte from least significant to
most significant; otherwise, the first bit in each byte is the most
significant one. This is relevant only for bitmap data.
GL_UNPACK_ROW_LENGTH [Toc] [Back]
If greater than 0, GL_UNPACK_ROW_LENGTH defines the number of pixels
in a row. If the first pixel of a row is placed at location p in
memory, then the location of the first pixel of the next row is
obtained by skipping
(
| nl s > a
k = |
_|___| s < a
|
s| a |
(
components or indices, where n is the number of components or
indices in a pixel, l is the number of pixels in a row
(GL_UNPACK_ROW_LENGTH if it is greater than 0, the width argument to
the pixel routine otherwise), a is the value of GL_UNPACK_ALIGNMENT,
and s is the size, in bytes, of a single component (if a<s, then it
is as if a=s). In the case of 1-bit values, the location of the
next row is obtained by skipping
|__|
k = 8a
|8a|
components or indices.
The word component in this description refers to the nonindex values
red, green, blue, alpha, and depth. Storage format GL_RGB, for
example, has three components per pixel: first red, then green, and
Page 5
glPixelStore(3G) OpenGL Reference glPixelStore(3G)
finally blue.
GL_UNPACK_IMAGE_HEIGHT [Toc] [Back]
If greater than 0, GL_UNPACK_IMAGE_HEIGHT defines the number of
pixels in an image of a three-dimensional texture volume, where an
``image'' consists of all pixels sharing the same third dimension
index. If the first pixel of an image is placed at location p in
memory, then the location of the first pixel of the next image is
obtained by skipping
(
| nlh s > a
k = |
_|____| s < a
|
s| a |
(
components or indices, where n is the number of components or
indices in a pixel, l is the number of pixels in a row
(GL_UNPACK_ROW_LENGTH if it is greater than 0, the width argument to
glTexImage3D otherwise), h is the number of rows in an image
(GL_UNPACK_IMAGE_HEIGHT if it is greater than 0, the height argument
to glTexImage3D otherwise), a is the value of GL_UNPACK_ALIGNMENT,
and s is the size, in bytes, of a single component (if a<s, then it
is as if a = s).
The word component in this description refers to the nonindex values
red, green, blue, alpha, and depth. Storage format GL_RGB, for
example, has three components per pixel: first red, then green, and
finally blue.
GL_UNPACK_IMAGE_DEPTH_SGIS [Toc] [Back]
If greater than 0, GL_UNPACK_IMAGE_DEPTH_SGIS defines the number of
pixels in a volume of a four-dimensional texture hypervolume, where
a ``volume'' consists of all pixels sharing the same fourth
dimension index. If the first pixel of a volume is placed at
location p in memory, then the location of the first pixel of the
next volume is obtained by skipping
(
| nlhd s > a
k = |
_|_____| s < a
|
s| a |
(
components or indices, where n is the number of components or
indices in a pixel, l is the number of pixels in a row
(GL_UNPACK_ROW_LENGTH if it is greater than 0, the width argument to
glTexImage3D otherwise), h is the number of rows in an image
(GL_UNPACK_IMAGE_HEIGHT if it is greater than 0, the height argument
to glTexImage3D otherwise), d is the number of images in a volume
(GL_UNPACK_IMAGE_DEPTH_SGIS if it is greater than 0, the depth
argument to the glTexImage4DSGIS routine otherwise), a is the value
of GL_UNPACK_ALIGNMENT, and s is the size, in bytes, of a single
component (if a<s, then it is as if a = s).
Page 6
glPixelStore(3G) OpenGL Reference glPixelStore(3G)
The word component in this description refers to the nonindex values
red, green, blue, alpha, and depth. Storage format GL_RGB, for
example, has three components per pixel: first red, then green, and
finally blue.
GL_UNPACK_SKIP_PIXELS, GL_UNPACK_SKIP_ROWS, GL_UNPACK_SKIP_IMAGES,
and GL_UNPACK_SKIP_VOLUMES_SGIS
These values are provided as a convenience to the programmer; they
provide no functionality that cannot be duplicated by incrementing
the pointer passed to glDrawPixels, glTexImage1D, glTexImage2D,
glTexSubImage1D, glTexSubImage2D, glBitmap, or glPolygonStipple.
Setting GL_UNPACK_SKIP_PIXELS to i is equivalent to incrementing the
pointer by in components or indices, where n is the number of
components or indices in each pixel. Setting GL_UNPACK_SKIP_ROWS to
j is equivalent to incrementing the pointer by jk components or
indices, where k is the number of components or indices per row, as
just computed in the GL_UNPACK_ROW_LENGTH section. Setting
GL_UNPACK_SKIP_IMAGES to k is equivalent to incrementing the pointer
by kp, where p is the number of components or indices per image, as
computed in the GL_UNPACK_IMAGE_HEIGHT section. Setting
GL_UNPACK_SKIP_VOLUMES_SGIS to k is equivalent to incrementing the
pointer by kp, where p is the number of components or indices per
volume, as computed in the GL_UNPACK_IMAGE_DEPTH_SGIS section.
GL_UNPACK_ALIGNMENT [Toc] [Back]
Specifies the alignment requirements for the start of each pixel row
in memory. The allowable values are 1 (byte-alignment), 2 (rows
aligned to even-numbered bytes), 4 (word-alignment), and 8 (rows
start on double-word boundaries).
GL_UNPACK_SUBSAMPLE_RATE_SGIX [Toc] [Back]
Specifies the subsample conversion rate that is applied when
unpacking pixel data. The accepted param values are
GL_PIXEL_SUBSAMPLE_4444_SGIX, GL_PIXEL_SUBSAMPLE_2424_SGIX, and
GL_PIXEL_SUBSAMPLE_4242_SGIX. When set to other than the default
GL_PIXEL_SUBSAMPLE_4444_SGIX value, pixel groups are upsampled to
produce RGB or RGBA component groups, depending on the source
format. The packed subsampled source pixel is composed of two
values, and the width argument to the pixel routine must be a
multiple of 2 pixels. The unpacked pixel group is composed of R, G,
and B components in the order specified by the format. When a 4-
component format is specified, an alpha component is added to the
unpacked group and set to the maximum clamped value of the source
type. Pixel group values are also affected by the state of the
GL_UNPACK_RESAMPLE_SGIX mode. Subsampled pixel pairs are unpacked as
follows:
Page 7
glPixelStore(3G) OpenGL Reference glPixelStore(3G)
2424 - replicate : 2424 - zero-fill :
<P00,P01> <P10,P11> <P00,P01> <P10,P11>
| | | | | | | |
| | o-----o---+---o | | o-----o |
| | | | | | | | |
o---+---+-----o | | | | | 0.0 | 0.0
| | | | | | | | | | | |
V V V V V V V V V V V V
<U00,U01,U02> <U10,U11,U12> <U00,U01,U02> <U10,U11,U12>
4242 - replicate : 4242 - zero-fill :
<P00,P01> <P10,P11> <P00,P01> <P10,P11>
| | __\ __|_ | | __\ __|
\ / \____ / \ \ \ / / \
X X__ \ \ X / \
/ \ / \ \ | / \ / 0.0 \ 0.0
| | | | | | | | | | | |
V V V V V V V V V V V V
<U00,U01,U02> <U10,U11,U12> <U00,U01,U02> <U10,U11,U12>
GL_UNPACK_RESAMPLE_SGIX [Toc] [Back]
Specifies the resample mode in effect when an unpack subsample rate
is being applied. The accepted param values are
GL_RESAMPLE_REPLICATE_SGIX and GL_RESAMPLE_ZERO_FILL_SGIX. When
GL_RESAMPLE_ZERO_FILL_SGIX is selected, the lower-rate sampled
components in the second group of each pixel pair are assigned a
zero value. Otherwise the lower-rate components replicate
corresponding values from the preceding unpacked group.
The following table gives the type, initial value, and range of valid
values for each storage parameter that can be set with glPixelStore.
pname Type Initial Value Valid Range
GL_PACK_SWAP_BYTES boolean false true or false
GL_PACK_LSB_FIRST boolean false true or false
GL_PACK_ROW_LENGTH integer 0 [0,oo)
GL_PACK_IMAGE_HEIGHT integer 0 [0,oo)
GL_PACK_IMAGE_DEPTH_SGIS integer 0 [0,oo)
GL_PACK_SKIP_ROWS integer 0 [0,oo)
GL_PACK_SKIP_PIXELS integer 0 [0,oo)
GL_PACK_SKIP_IMAGES integer 0 [0,oo)
GL_PACK_SKIP_VOLUMES_SGIS integer 0 [0,oo)
GL_PACK_ALIGNMENT integer 4 1, 2, 4, or 8
GL_PACK_SUBSAMPLE_RATE_SGIX enum 4444 4444, 2424, or 4242
GL_PACK_RESAMPLE_SGIX enum decimate decimate
GL_UNPACK_SWAP_BYTES boolean false true or false
Page 8
glPixelStore(3G) OpenGL Reference glPixelStore(3G)
GL_UNPACK_LSB_FIRST boolean false true or false
GL_UNPACK_ROW_LENGTH integer 0 [0,oo)
GL_UNPACK_IMAGE_HEIGHT integer 0 [0,oo)
GL_UNPACK_IMAGE_DEPTH_SGIS integer 0 [0,oo)
GL_UNPACK_SKIP_ROWS integer 0 [0,oo)
GL_UNPACK_SKIP_PIXELS integer 0 [0,oo)
GL_UNPACK_SKIP_IMAGES integer 0 [0,oo)
GL_UNPACK_SKIP_VOLUMES_SGIS integer 0 [0,oo)
GL_UNPACK_ALIGNMENT integer 4 1, 2, 4, or 8
GL_UNPACK_SUBSAMPLE_RATE_SGIX enum 4444 4444, 2424, or 4242
GL_UNPACK_RESAMPLE_SGIX enum replicate replicate or zero-fill
glPixelStoref can be used to set any pixel store parameter. If the
parameter type is boolean, then if param is 0, the parameter is false;
otherwise it is set to true. If pname is a integer type parameter, param
is rounded to the nearest integer.
Likewise, glPixelStorei can also be used to set any of the pixel store
parameters. Boolean parameters are set to false if param is 0 and true
otherwise.
The pixel storage modes in effect when glDrawPixels, glReadPixels,
glTexImage1D, glTexImage2D, glTexImage3D, glTexImage4DSGIS,
glTexSubImage1D, glTexSubImage2D, glTexSubImage3D, glTexSubImage4DSGIS,
glBitmap, or glPolygonStipple is placed in a display list control the
interpretation of memory data. Likewise, if the GL_ARB_imaging extension
is supported, the pixel storage modes in effect when glColorTable,
glColorSubTable, glConvolutionFilter1D, glConvolutionFilter2D, of
glSeparableFilter2D is placed in a display list control the
intrepretation of memory data. The pixel storage modes in effect when a
display list is executed are not significant.
Pixel storage modes are client state and must be pushed and restored
using
glPushClientAttrib and glPopClientAttrib.
GL_INVALID_ENUM is generated if pname is not an accepted value.
GL_INVALID_VALUE is generated if a negative row length, pixel skip, or
row skip value is specified, or if alignment is specified as other than
1, 2, 4, or 8, or if subsample rate or resample is specified with a value
that is not accepted.
GL_INVALID_OPERATION is generated if glPixelStore is executed between the
execution of glBegin and the corresponding execution of glEnd.
Page 9
glPixelStore(3G) OpenGL Reference glPixelStore(3G)
ASSOCIATED GETS
glGet with argument GL_PACK_SWAP_BYTES
glGet with argument GL_PACK_LSB_FIRST
glGet with argument GL_PACK_ROW_LENGTH
glGet with argument GL_PACK_IMAGE_HEIGHT
glGet with argument GL_PACK_IMAGE_DEPTH_SGIS
glGet with argument GL_PACK_SKIP_ROWS
glGet with argument GL_PACK_SKIP_PIXELS
glGet with argument GL_PACK_SKIP_IMAGES
glGet with argument GL_PACK_SKIP_VOLSUME_SGIS
glGet with argument GL_PACK_ALIGNMENT
glGet with argument GL_PACK_SUBSAMPLE_RATE_SGIX
glGet with argument GL_PACK_RESAMPLE_SGIX
glGet with argument GL_UNPACK_SWAP_BYTES
glGet with argument GL_UNPACK_LSB_FIRST
glGet with argument GL_UNPACK_ROW_LENGTH
glGet with argument GL_UNPACK_IMAGE_HEIGHT
glGet with argument GL_UNPACK_IMAGE_DEPTH_SGIS
glGet with argument GL_UNPACK_SKIP_ROWS
glGet with argument GL_UNPACK_SKIP_PIXELS
glGet with argument GL_UNPACK_SKIP_IMAGES
glGet with argument GL_UNPACK_SKIP_VOLUMES_SGIS
glGet with argument GL_UNPACK_ALIGNMENT
glGet with argument GL_UNPACK_SUBSAMPLE_RATE_SGIX
glGet with argument GL_UNPACK_RESAMPLE_SGIX
MACHINE DEPENDENCIES
The SGIX_subsample and SGIX_resample extensions are supported only on
Octane2 VPro systems. Applying the GL_PIXEL_SUBSAMPLE_2424_SGIX
subsample rate is accelerated for direct immmediate mode transfers when
the format is GL_RGB or GL_RGBA, and the type is GL_UNSIGNED_BYTE or
GL_UNSIGNED_SHORT.
glBitmap, glColorTable, glColorSubTable, glConvolutionFilter1D,
glConvolutionFilter2D, glSeparableFilter2D, glDrawPixels, glHistogram,
glMinmax, glPixelMap, glPixelTransfer, glPixelZoom, glPolygonStipple,
glPushClientAttrib, glReadPixels, glTexImage1D, glTexImage2D,
glTexImage3D, glTexImage4DSGIS, glTexSubImage1D, glTexSubImage2D,
glTexSubImage3D, glTexSubImage4DSGIS
PPPPaaaaggggeeee 11110000 [ Back ]
|
