GLAPI/glTexSubImage3D: Difference between revisions

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; target
; target
: Specifies the target texture. Must be {{code|GL_TEXTURE_3D}}.
: Specifies the target texture. Must be {{enum|GL_TEXTURE_3D}}.
; level
; level
: Specifies the level-of-detail number. Level 0 is the base image level. Level ''n'' is the ''n''th mipmap reduction image.
: Specifies the level-of-detail number. Level 0 is the base image level. Level ''n'' is the ''n''th mipmap reduction image.
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: Specifies the depth of the texture subimage.
: Specifies the depth of the texture subimage.
; format
; format
: Specifies the format of the pixel data. The following symbolic values are accepted: {{code|GL_RED}}, {{code|GL_RG}}, {{code|GL_RGB}}, {{code|GL_BGR}}, {{code|GL_RGBA}}, and {{code|GL_BGRA}}.
: Specifies the format of the pixel data. The following symbolic values are accepted: {{enum|GL_RED}}, {{enum|GL_RG}}, {{enum|GL_RGB}}, {{enum|GL_BGR}}, {{enum|GL_RGBA}}, and {{enum|GL_BGRA}}.
; type
; type
: Specifies the data type of the pixel data. The following symbolic values are accepted: {{code|GL_UNSIGNED_BYTE}}, {{code|GL_BYTE}}, {{code|GL_UNSIGNED_SHORT}}, {{code|GL_SHORT}}, {{code|GL_UNSIGNED_INT}}, {{code|GL_INT}}, {{code|GL_FLOAT}}, {{code|GL_UNSIGNED_BYTE_3_3_2}}, {{code|GL_UNSIGNED_BYTE_2_3_3_REV}}, {{code|GL_UNSIGNED_SHORT_5_6_5}}, {{code|GL_UNSIGNED_SHORT_5_6_5_REV}}, {{code|GL_UNSIGNED_SHORT_4_4_4_4}}, {{code|GL_UNSIGNED_SHORT_4_4_4_4_REV}}, {{code|GL_UNSIGNED_SHORT_5_5_5_1}}, {{code|GL_UNSIGNED_SHORT_1_5_5_5_REV}}, {{code|GL_UNSIGNED_INT_8_8_8_8}}, {{code|GL_UNSIGNED_INT_8_8_8_8_REV}}, {{code|GL_UNSIGNED_INT_10_10_10_2}}, and {{code|GL_UNSIGNED_INT_2_10_10_10_REV}}.
: Specifies the data type of the pixel data. The following symbolic values are accepted: {{enum|GL_UNSIGNED_BYTE}}, {{enum|GL_BYTE}}, {{enum|GL_UNSIGNED_SHORT}}, {{enum|GL_SHORT}}, {{enum|GL_UNSIGNED_INT}}, {{enum|GL_INT}}, {{enum|GL_FLOAT}}, {{enum|GL_UNSIGNED_BYTE_3_3_2}}, {{enum|GL_UNSIGNED_BYTE_2_3_3_REV}}, {{enum|GL_UNSIGNED_SHORT_5_6_5}}, {{enum|GL_UNSIGNED_SHORT_5_6_5_REV}}, {{enum|GL_UNSIGNED_SHORT_4_4_4_4}}, {{enum|GL_UNSIGNED_SHORT_4_4_4_4_REV}}, {{enum|GL_UNSIGNED_SHORT_5_5_5_1}}, {{enum|GL_UNSIGNED_SHORT_1_5_5_5_REV}}, {{enum|GL_UNSIGNED_INT_8_8_8_8}}, {{enum|GL_UNSIGNED_INT_8_8_8_8_REV}}, {{enum|GL_UNSIGNED_INT_10_10_10_2}}, and {{enum|GL_UNSIGNED_INT_2_10_10_10_REV}}.
; data
; data
: Specifies a pointer to the image data in memory.
: Specifies a pointer to the image data in memory.
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== Description ==
== Description ==


Texturing maps a portion of a specified texture image onto each graphical primitive for which texturing is enabled. To enable and disable three-dimensional texturing, call {{apifunc|glEnable}} and {{apifunc|glDisable}} with argument {{code|GL_TEXTURE_3D}}.
Texturing maps a portion of a specified texture image onto each graphical primitive for which texturing is enabled. To enable and disable three-dimensional texturing, call {{apifunc|glEnable}} and {{apifunc|glDisable}} with argument {{enum|GL_TEXTURE_3D}}.


'''glTexSubImage3D''' redefines a contiguous subregion of an existing three-dimensional texture image. The texels referenced by {{param|data}} replace the portion of the existing texture array with x indices {{param|xoffset}} and ''xoffset'' + ''width'' - 1, inclusive, y indices {{param|yoffset}} and ''yoffset'' + ''height'' - 1, inclusive, and z indices {{param|zoffset}} and ''zoffset'' + ''depth'' - 1, inclusive. This region may not include any texels outside the range of the texture array as it was originally specified. It is not an error to specify a subtexture with zero width, height, or depth but such a specification has no effect.
'''glTexSubImage3D''' redefines a contiguous subregion of an existing three-dimensional texture image. The texels referenced by {{param|data}} replace the portion of the existing texture array with x indices {{param|xoffset}} and ''xoffset'' + ''width'' - 1, inclusive, y indices {{param|yoffset}} and ''yoffset'' + ''height'' - 1, inclusive, and z indices {{param|zoffset}} and ''zoffset'' + ''depth'' - 1, inclusive. This region may not include any texels outside the range of the texture array as it was originally specified. It is not an error to specify a subtexture with zero width, height, or depth but such a specification has no effect.


If a non-zero named buffer object is bound to the {{code|GL_PIXEL_UNPACK_BUFFER}} target (see {{apifunc|glBindBuffer}}) while a texture image is specified, {{param|data}} is treated as a byte offset into the buffer object's data store.
If a non-zero named buffer object is bound to the {{enum|GL_PIXEL_UNPACK_BUFFER}} target (see {{apifunc|glBindBuffer}}) while a texture image is specified, {{param|data}} is treated as a byte offset into the buffer object's data store.


== Notes ==
== Notes ==
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== Errors ==
== Errors ==


{{code|GL_INVALID_ENUM}} is generated if /{{param|target}} is not {{code|GL_TEXTURE_3D}}.
{{enum|GL_INVALID_ENUM}} is generated if /{{param|target}} is not {{enum|GL_TEXTURE_3D}}.


{{code|GL_INVALID_ENUM}} is generated if {{param|format}} is not an accepted format constant.
{{enum|GL_INVALID_ENUM}} is generated if {{param|format}} is not an accepted format constant.


{{code|GL_INVALID_ENUM}} is generated if {{param|type}} is not a type constant.
{{enum|GL_INVALID_ENUM}} is generated if {{param|type}} is not a type constant.


{{code|GL_INVALID_VALUE}} is generated if {{param|level}} is less than 0.
{{enum|GL_INVALID_VALUE}} is generated if {{param|level}} is less than 0.


{{code|GL_INVALID_VALUE}} may be generated if {{param|level}} is greater than log<sub>2</sub>(''max''), where ''max'' is the returned value of {{code|GL_MAX_TEXTURE_SIZE}}.
{{enum|GL_INVALID_VALUE}} may be generated if {{param|level}} is greater than log<sub>2</sub>(''max''), where ''max'' is the returned value of {{enum|GL_MAX_TEXTURE_SIZE}}.


{{code|GL_INVALID_VALUE}} is generated if ''xoffset'' < 0, (''xoffset'' + ''width'') > ''w'', ''yoffset'' < 0, (''yoffset'' + ''height'') > ''h'', ''zoffset'' < 0, or (''zoffset'' + ''depth'') > ''d'', where ''w'' is the {{code|GL_TEXTURE_WIDTH}}, ''h'' is the {{code|GL_TEXTURE_HEIGHT}}, and ''d'' is the {{code|GL_TEXTURE_DEPTH}}.
{{enum|GL_INVALID_VALUE}} is generated if ''xoffset'' < 0, (''xoffset'' + ''width'') > ''w'', ''yoffset'' < 0, (''yoffset'' + ''height'') > ''h'', ''zoffset'' < 0, or (''zoffset'' + ''depth'') > ''d'', where ''w'' is the {{enum|GL_TEXTURE_WIDTH}}, ''h'' is the {{enum|GL_TEXTURE_HEIGHT}}, and ''d'' is the {{enum|GL_TEXTURE_DEPTH}}.


{{code|GL_INVALID_VALUE}} is generated if {{param|width}}, {{param|height}}, or {{param|depth}} is less than 0.
{{enum|GL_INVALID_VALUE}} is generated if {{param|width}}, {{param|height}}, or {{param|depth}} is less than 0.


{{code|GL_INVALID_OPERATION}} is generated if the texture array has not been defined by a previous {{apifunc|glTexImage3D}} operation.
{{enum|GL_INVALID_OPERATION}} is generated if the texture array has not been defined by a previous {{apifunc|glTexImage3D}} operation.


{{code|GL_INVALID_OPERATION}} is generated if {{param|type}} is one of {{code|GL_UNSIGNED_BYTE_3_3_2}}, {{code|GL_UNSIGNED_BYTE_2_3_3_REV}}, {{code|GL_UNSIGNED_SHORT_5_6_5}}, or {{code|GL_UNSIGNED_SHORT_5_6_5_REV}} and {{param|format}} is not {{code|GL_RGB}}.
{{enum|GL_INVALID_OPERATION}} is generated if {{param|type}} is one of {{enum|GL_UNSIGNED_BYTE_3_3_2}}, {{enum|GL_UNSIGNED_BYTE_2_3_3_REV}}, {{enum|GL_UNSIGNED_SHORT_5_6_5}}, or {{enum|GL_UNSIGNED_SHORT_5_6_5_REV}} and {{param|format}} is not {{enum|GL_RGB}}.


{{code|GL_INVALID_OPERATION}} is generated if {{param|type}} is one of {{code|GL_UNSIGNED_SHORT_4_4_4_4}}, {{code|GL_UNSIGNED_SHORT_4_4_4_4_REV}}, {{code|GL_UNSIGNED_SHORT_5_5_5_1}}, {{code|GL_UNSIGNED_SHORT_1_5_5_5_REV}}, {{code|GL_UNSIGNED_INT_8_8_8_8}}, {{code|GL_UNSIGNED_INT_8_8_8_8_REV}}, {{code|GL_UNSIGNED_INT_10_10_10_2}}, or {{code|GL_UNSIGNED_INT_2_10_10_10_REV}} and {{param|format}} is neither {{code|GL_RGBA}} nor {{code|GL_BGRA}}.
{{enum|GL_INVALID_OPERATION}} is generated if {{param|type}} is one of {{enum|GL_UNSIGNED_SHORT_4_4_4_4}}, {{enum|GL_UNSIGNED_SHORT_4_4_4_4_REV}}, {{enum|GL_UNSIGNED_SHORT_5_5_5_1}}, {{enum|GL_UNSIGNED_SHORT_1_5_5_5_REV}}, {{enum|GL_UNSIGNED_INT_8_8_8_8}}, {{enum|GL_UNSIGNED_INT_8_8_8_8_REV}}, {{enum|GL_UNSIGNED_INT_10_10_10_2}}, or {{enum|GL_UNSIGNED_INT_2_10_10_10_REV}} and {{param|format}} is neither {{enum|GL_RGBA}} nor {{enum|GL_BGRA}}.


{{code|GL_INVALID_OPERATION}} is generated if a non-zero buffer object name is bound to the {{code|GL_PIXEL_UNPACK_BUFFER}} target and the buffer object's data store is currently mapped.
{{enum|GL_INVALID_OPERATION}} is generated if a non-zero buffer object name is bound to the {{enum|GL_PIXEL_UNPACK_BUFFER}} target and the buffer object's data store is currently mapped.


{{code|GL_INVALID_OPERATION}} is generated if a non-zero buffer object name is bound to the {{code|GL_PIXEL_UNPACK_BUFFER}} target and the data would be unpacked from the buffer object such that the memory reads required would exceed the data store size.
{{enum|GL_INVALID_OPERATION}} is generated if a non-zero buffer object name is bound to the {{enum|GL_PIXEL_UNPACK_BUFFER}} target and the data would be unpacked from the buffer object such that the memory reads required would exceed the data store size.


{{code|GL_INVALID_OPERATION}} is generated if a non-zero buffer object name is bound to the {{code|GL_PIXEL_UNPACK_BUFFER}} target and {{param|data}} is not evenly divisible into the number of bytes needed to store in memory a datum indicated by {{param|type}}.
{{enum|GL_INVALID_OPERATION}} is generated if a non-zero buffer object name is bound to the {{enum|GL_PIXEL_UNPACK_BUFFER}} target and {{param|data}} is not evenly divisible into the number of bytes needed to store in memory a datum indicated by {{param|type}}.


== Associated Gets ==
== Associated Gets ==
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{{apifunc|glGetTexImage}}
{{apifunc|glGetTexImage}}


{{apifunc|glGet}} with argument {{code|GL_PIXEL_UNPACK_BUFFER_BINDING}}
{{apifunc|glGet}} with argument {{enum|GL_PIXEL_UNPACK_BUFFER_BINDING}}


== See Also ==
== See Also ==

Revision as of 17:29, 29 April 2012

glTexSubImage3D
Core in version 4.6
Core since version 1.2

glTexSubImage3D: specify a three-dimensional texture subimage

Function Definition

 void glTexSubImage3D(GLenum target​, GLint level​, GLint xoffset​, GLint yoffset​, GLint zoffset​, GLsizei width​, GLsizei height​, GLsizei depth​, GLenum format​, GLenum type​, const GLvoid * data​);
target
Specifies the target texture. Must be GL_TEXTURE_3D.
level
Specifies the level-of-detail number. Level 0 is the base image level. Level n is the nth mipmap reduction image.
xoffset
Specifies a texel offset in the x direction within the texture array.
yoffset
Specifies a texel offset in the y direction within the texture array.
zoffset
Specifies a texel offset in the z direction within the texture array.
width
Specifies the width of the texture subimage.
height
Specifies the height of the texture subimage.
depth
Specifies the depth of the texture subimage.
format
Specifies the format of the pixel data. The following symbolic values are accepted: GL_RED, GL_RG, GL_RGB, GL_BGR, GL_RGBA, and GL_BGRA.
type
Specifies the data type of the pixel data. The following symbolic values are accepted: GL_UNSIGNED_BYTE, GL_BYTE, GL_UNSIGNED_SHORT, GL_SHORT, GL_UNSIGNED_INT, GL_INT, GL_FLOAT, GL_UNSIGNED_BYTE_3_3_2, GL_UNSIGNED_BYTE_2_3_3_REV, GL_UNSIGNED_SHORT_5_6_5, GL_UNSIGNED_SHORT_5_6_5_REV, GL_UNSIGNED_SHORT_4_4_4_4, GL_UNSIGNED_SHORT_4_4_4_4_REV, GL_UNSIGNED_SHORT_5_5_5_1, GL_UNSIGNED_SHORT_1_5_5_5_REV, GL_UNSIGNED_INT_8_8_8_8, GL_UNSIGNED_INT_8_8_8_8_REV, GL_UNSIGNED_INT_10_10_10_2, and GL_UNSIGNED_INT_2_10_10_10_REV.
data
Specifies a pointer to the image data in memory.

Description

Texturing maps a portion of a specified texture image onto each graphical primitive for which texturing is enabled. To enable and disable three-dimensional texturing, call glEnable and glDisable with argument GL_TEXTURE_3D.

glTexSubImage3D redefines a contiguous subregion of an existing three-dimensional texture image. The texels referenced by data​ replace the portion of the existing texture array with x indices xoffset​ and xoffset + width - 1, inclusive, y indices yoffset​ and yoffset + height - 1, inclusive, and z indices zoffset​ and zoffset + depth - 1, inclusive. This region may not include any texels outside the range of the texture array as it was originally specified. It is not an error to specify a subtexture with zero width, height, or depth but such a specification has no effect.

If a non-zero named buffer object is bound to the GL_PIXEL_UNPACK_BUFFER target (see glBindBuffer) while a texture image is specified, data​ is treated as a byte offset into the buffer object's data store.

Notes

The glPixelStore modes affect texture images.

glTexSubImage3D specifies a three-dimensional subtexture for the current texture unit, specified with glActiveTexture.

Errors

GL_INVALID_ENUM is generated if /target​ is not GL_TEXTURE_3D.

GL_INVALID_ENUM is generated if format​ is not an accepted format constant.

GL_INVALID_ENUM is generated if type​ is not a type constant.

GL_INVALID_VALUE is generated if level​ is less than 0.

GL_INVALID_VALUE may be generated if level​ is greater than log2(max), where max is the returned value of GL_MAX_TEXTURE_SIZE.

GL_INVALID_VALUE is generated if xoffset < 0, (xoffset + width) > w, yoffset < 0, (yoffset + height) > h, zoffset < 0, or (zoffset + depth) > d, where w is the GL_TEXTURE_WIDTH, h is the GL_TEXTURE_HEIGHT, and d is the GL_TEXTURE_DEPTH.

GL_INVALID_VALUE is generated if width​, height​, or depth​ is less than 0.

GL_INVALID_OPERATION is generated if the texture array has not been defined by a previous glTexImage3D operation.

GL_INVALID_OPERATION is generated if type​ is one of GL_UNSIGNED_BYTE_3_3_2, GL_UNSIGNED_BYTE_2_3_3_REV, GL_UNSIGNED_SHORT_5_6_5, or GL_UNSIGNED_SHORT_5_6_5_REV and format​ is not GL_RGB.

GL_INVALID_OPERATION is generated if type​ is one of GL_UNSIGNED_SHORT_4_4_4_4, GL_UNSIGNED_SHORT_4_4_4_4_REV, GL_UNSIGNED_SHORT_5_5_5_1, GL_UNSIGNED_SHORT_1_5_5_5_REV, GL_UNSIGNED_INT_8_8_8_8, GL_UNSIGNED_INT_8_8_8_8_REV, GL_UNSIGNED_INT_10_10_10_2, or GL_UNSIGNED_INT_2_10_10_10_REV and format​ is neither GL_RGBA nor GL_BGRA.

GL_INVALID_OPERATION is generated if a non-zero buffer object name is bound to the GL_PIXEL_UNPACK_BUFFER target and the buffer object's data store is currently mapped.

GL_INVALID_OPERATION is generated if a non-zero buffer object name is bound to the GL_PIXEL_UNPACK_BUFFER target and the data would be unpacked from the buffer object such that the memory reads required would exceed the data store size.

GL_INVALID_OPERATION is generated if a non-zero buffer object name is bound to the GL_PIXEL_UNPACK_BUFFER target and data​ is not evenly divisible into the number of bytes needed to store in memory a datum indicated by type​.

Associated Gets

glGetTexImage

glGet with argument GL_PIXEL_UNPACK_BUFFER_BINDING

See Also

glActiveTexture, glCopyTexImage1D, glCopyTexImage2D, glCopyTexSubImage1D, glCopyTexSubImage2D, glCopyTexSubImage3D, glPixelStore, glTexImage1D, glTexImage2D, glTexImage3D, glTexSubImage1D, glTexSubImage2D, glTexParameter

Copyright

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/.

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