glFramebufferTexture — attach a level of a texture object as a logical buffer to the currently bound framebuffer object
void glFramebufferTexture( | GLenum | target, |
| GLenum | attachment, | |
| GLuint | texture, | |
| GLint | level); |
void glFramebufferTexture1D( | GLenum | target, |
| GLenum | attachment, | |
| GLenum | textarget, | |
| GLuint | texture, | |
| GLint | level); |
void glFramebufferTexture2D( | GLenum | target, |
| GLenum | attachment, | |
| GLenum | textarget, | |
| GLuint | texture, | |
| GLint | level); |
void glFramebufferTexture3D( | GLenum | target, |
| GLenum | attachment, | |
| GLenum | textarget, | |
| GLuint | texture, | |
| GLint | level, | |
| GLint | layer); |
target
Specifies the framebuffer target. target must be GL_DRAW_FRAMEBUFFER,
GL_READ_FRAMEBUFFER, or GL_FRAMEBUFFER. GL_FRAMEBUFFER
is equivalent to GL_DRAW_FRAMEBUFFER.
attachment
Specifies the attachment point of the framebuffer. attachment must be
GL_COLOR_ATTACHMENTi, GL_DEPTH_ATTACHMENT,
GL_STENCIL_ATTACHMENT or GL_DEPTH_STENCIL_ATTACHMENT.
textarget
For glFramebufferTexture1D, glFramebufferTexture2D and
glFramebufferTexture3D, specifies what type of texture is expected
in the texture parameter, or for cube map textures, which face is to be attached.
texture
Specifies the texture object to attach to the framebuffer attachment point named by attachment.
level
Specifies the mipmap level of texture to attach.
glFramebufferTexture, glFramebufferTexture1D, glFramebufferTexture2D,
and glFramebufferTexture attach a selected mipmap level or image of a texture object as one of the
logical buffers of the framebuffer object currently bound to target. target must
be GL_DRAW_FRAMEBUFFER, GL_READ_FRAMEBUFFER, or GL_FRAMEBUFFER.
GL_FRAMEBUFFER is equivalent to GL_DRAW_FRAMEBUFFER.
attachment specifies the logical attachment of the framebuffer and must be
GL_COLOR_ATTACHMENTi, GL_DEPTH_ATTACHMENT,
GL_STENCIL_ATTACHMENT or GL_DEPTH_STENCIL_ATTACHMENT.
i in GL_COLOR_ATTACHMENTi may range from zero to
the value of GL_MAX_COLOR_ATTACHMENTS - 1. Attaching a level of a texture to
GL_DEPTH_STENCIL_ATTACHMENT is equivalent to attaching that level to both the
GL_DEPTH_ATTACHMENT and the GL_STENCIL_ATTACHMENT
attachment points simultaneously.
textarget specifies what type of texture is named by texture, and for
cube map textures, specifies the face that is to be attached. If texture is not zero, it
must be the name of an existing texture with type textarget, unless it is a cube map
texture, in which case textarget must be GL_TEXTURE_CUBE_MAP_POSITIVE_X
GL_TEXTURE_CUBE_MAP_NEGATIVE_X, GL_TEXTURE_CUBE_MAP_POSITIVE_Y,
GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, GL_TEXTURE_CUBE_MAP_POSITIVE_Z, or
GL_TEXTURE_CUBE_MAP_NEGATIVE_Z.
If texture is non-zero, the specified level of the texture object named
texture is attached to the framebfufer attachment point named by attachment.
For glFramebufferTexture1D, glFramebufferTexture2D, and
glFramebufferTexture3D, texture must be zero or the name of an existing
texture with a target of textarget, or texture must be the name
of an existing cube-map texture and textarget must be one of GL_TEXTURE_CUBE_MAP_POSITIVE_X,
GL_TEXTURE_CUBE_MAP_POSITIVE_Y, GL_TEXTURE_CUBE_MAP_POSITIVE_Z,
GL_TEXTURE_CUBE_MAP_NEGATIVE_X, GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, or
GL_TEXTURE_CUBE_MAP_NEGATIVE_Z.
If textarget is GL_TEXTURE_RECTANGLE, GL_TEXTURE_2D_MULTISAMPLE,
or GL_TEXTURE_2D_MULTISAMPLE_ARRAY, then level must be zero. If textarget
is GL_TEXTURE_3D, then level must be greater than or equal to zero and less than or equal to log2
of the value of GL_MAX_3D_TEXTURE_SIZE. If textarget is one of GL_TEXTURE_CUBE_MAP_POSITIVE_X,
GL_TEXTURE_CUBE_MAP_POSITIVE_Y, GL_TEXTURE_CUBE_MAP_POSITIVE_Z, GL_TEXTURE_CUBE_MAP_NEGATIVE_X,
GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, or GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, then level must be greater
than or equal to zero and less than or equal to log2 of the value of GL_MAX_CUBE_MAP_TEXTURE_SIZE. For all other
values of textarget, level must be greater than or equal to zero and no larger than log2
of the value of GL_MAX_TEXTURE_SIZE.
layer specifies the layer of a 2-dimensional image within a 3-dimensional texture.
For glFramebufferTexture1D, if texture is not zero, then textarget must
be GL_TEXTURE_1D. For glFramebufferTexture2D, if texture is not zero,
textarget must be one of GL_TEXTURE_2D, GL_TEXTURE_RECTANGLE,
GL_TEXTURE_CUBE_MAP_POSITIVE_X, GL_TEXTURE_CUBE_MAP_POSITIVE_Y, GL_TEXTURE_CUBE_MAP_POSITIVE_Z,
GL_TEXTURE_CUBE_MAP_NEGATIVE_X, GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, or
GL_TEXTURE_2D_MULTISAMPLE. For glFramebufferTexture3D, if texture is
not zero, then textarget must be GL_TEXTURE_3D.
GL_INVALID_ENUM is generated if target is not one of the accepted tokens.
GL_INVALID_ENUM is generated if renderbuffertarget is not GL_RENDERBUFFER.
GL_INVALID_OPERATION is generated if zero is bound to target.
GL_INVALID_OPERATION is generated if textarget and texture
are not compatible.
glGenFramebuffers, glBindFramebuffer, glGenRenderbuffers, glFramebufferTexture, glFramebufferTexture1D, glFramebufferTexture2D, glFramebufferTexture3D
Copyright © 2010 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/.