IdentifiantMot de passe
Loading...
Mot de passe oublié ?Je m'inscris ! (gratuit)
Page OpenGL 4.X --- Revenir au moteur de recherche

Name

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 FormatBase TypeComponentsNorm0123
GL_R8ubyte1YESR001
GL_R16ushort1YESR001
GL_R16Fhalf1NOR001
GL_R32Ffloat1NOR001
GL_R8Ibyte1NOR001
GL_R16Ishort1NOR001
GL_R32Iint1NOR001
GL_R8UIubyte1NOR001
GL_R16UIushort1NOR001
GL_R32UIuint1NOR001
GL_RG8ubyte2YESRG01
GL_RG16ushort2YESRG01
GL_RG16Fhalf2NORG01
GL_RG32Ffloat2NORG01
GL_RG8Ibyte2NORG01
GL_RG16Ishort2NORG01
GL_RG32Iint2NORG01
GL_RG8UIubyte2NORG01
GL_RG16UIushort2NORG01
GL_RG32UIuint2NORG01
GL_RGB32Ffloat3NORGB1
GL_RGB32Iint3NORGB1
GL_RGB32UIuint3NORGB1
GL_RGBA8uint4YESRGBA
GL_RGBA16short4YESRGBA
GL_RGBA16Fhalf4NORGBA
GL_RGBA32Ffloat4NORGBA
GL_RGBA8Ibyte4NORGBA
GL_RGBA16Ishort4NORGBA
GL_RGBA32Iint4NORGBA
GL_RGBA8UIubyte4NORGBA
GL_RGBA16UIushort4NORGBA
GL_RGBA32UIuint4NORGBA

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 © 2012 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/.