2013
Khronos Group
glTexBufferRange
3G
glTexBufferRange
bind a range of a buffer's data store to a buffer texture
C Specification
void glTexBufferRange
GLenum target
GLenum internalFormat
GLuint buffer
GLintptr offset
GLsizeiptr size
Parameters
target
Specifies the target of the operation and must be GL_TEXTURE_BUFFER.
internalFormat
Specifies the internal format of the data in the store belonging to buffer.
buffer
Specifies the name of the buffer object whose storage to attach to the active buffer texture.
offset
Specifies the offset of the start of the range of the buffer's data store to attach.
size
Specifies the size of the range of the buffer's data store to attach.
Description
glTexBufferRange attaches the a range of the data store of the buffer object named buffer to the active
buffer texture, and specifies the internal format for the texel array found in the attached buffer object. If buffer
is zero, any buffer object attached to the buffer texture is detached and no new buffer object is attached. If buffer
is non-zero, it must be the name of an existing buffer object. target must be GL_TEXTURE_BUFFER.
The start of the range is specified by offset and the size of the range is specified by size,
both measured in basic machine units. offset must be greater than or equal to zero, size must be greater
than zero, and the sum of offset and size not exceed the value
of GL_BUFFER_SIZE for buffer. Furthermore, offset must be
an integer multiple of the value of GL_TEXTURE_BUFFER_OFFSET_ALIGNMENT.
internalformat specifies the storage format, and must be one of the following sized internal formats:
Component
Sized Internal Format
Base Type
Components
Norm
0
1
2
3
GL_R8
ubyte
1
YES
R
0
0
1
GL_R16
ushort
1
YES
R
0
0
1
GL_R16F
half
1
NO
R
0
0
1
GL_R32F
float
1
NO
R
0
0
1
GL_R8I
byte
1
NO
R
0
0
1
GL_R16I
short
1
NO
R
0
0
1
GL_R32I
int
1
NO
R
0
0
1
GL_R8UI
ubyte
1
NO
R
0
0
1
GL_R16UI
ushort
1
NO
R
0
0
1
GL_R32UI
uint
1
NO
R
0
0
1
GL_RG8
ubyte
2
YES
R
G
0
1
GL_RG16
ushort
2
YES
R
G
0
1
GL_RG16F
half
2
NO
R
G
0
1
GL_RG32F
float
2
NO
R
G
0
1
GL_RG8I
byte
2
NO
R
G
0
1
GL_RG16I
short
2
NO
R
G
0
1
GL_RG32I
int
2
NO
R
G
0
1
GL_RG8UI
ubyte
2
NO
R
G
0
1
GL_RG16UI
ushort
2
NO
R
G
0
1
GL_RG32UI
uint
2
NO
R
G
0
1
GL_RGB32F
float
3
NO
R
G
B
1
GL_RGB32I
int
3
NO
R
G
B
1
GL_RGB32UI
uint
3
NO
R
G
B
1
GL_RGBA8
uint
4
YES
R
G
B
A
GL_RGBA16
short
4
YES
R
G
B
A
GL_RGBA16F
half
4
NO
R
G
B
A
GL_RGBA32F
float
4
NO
R
G
B
A
GL_RGBA8I
byte
4
NO
R
G
B
A
GL_RGBA16I
short
4
NO
R
G
B
A
GL_RGBA32I
int
4
NO
R
G
B
A
GL_RGBA8UI
ubyte
4
NO
R
G
B
A
GL_RGBA16UI
ushort
4
NO
R
G
B
A
GL_RGBA32UI
uint
4
NO
R
G
B
A
Errors
GL_INVALID_ENUM is generated if target is not
GL_TEXTURE_BUFFER.
GL_INVALID_VALUE is generated if offset is less than zero.
GL_INVALID_VALUE is generated if size is less than or equal to zero.
GL_INVALID_VALUE is generated if offset + size is
greater than the value of GL_BUFFER_SIZE for buffer.
GL_INVALID_VALUE is generated if offset is not
an integer multiple of the value of GL_TEXTURE_BUFFER_OFFSET_ALIGNMENT.
Associated Gets
glGet with argument GL_TEXTURE_BUFFER_OFFSET_ALIGNMENT
glGetTexLevelParameter with arguments GL_TEXTURE_BUFFER_OFFSET
or GL_TEXTURE_BUFFER_SIZE.
See Also
glTexBuffer.
Copyright
Copyright 2013 Khronos Group.
This material may be distributed subject to the terms and conditions set forth in
the Open Publication License, v 1.0, 8 June 1999.
http://opencontent.org/openpub/.