glFramebufferTexture man page on Oracle
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GLFRAMEBUFFERTEXTURE(3G) OpenGL Manual GLFRAMEBUFFERTEXTURE(3G)
NAME
glFramebufferTexture - attach a level of a texture object as a logical
buffer to the currently bound framebuffer object
C SPECIFICATION
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);
PARAMETERS
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_ATTACHMMENT.
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.
DESCRIPTION
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_ATTACHMMENT. 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_ATTACHMENTand 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_XGL_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.
NOTES
glFramebufferTexture is available only if the GL version is 3.2 or
greater.
ERRORS
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.
SEE ALSO
glGenFramebuffers(), glBindFramebuffer(), glGenRenderbuffers(),
glFramebufferTexture(), glFramebufferTexture1D(),
glFramebufferTexture2D(), glFramebufferTexture3D()
COPYRIGHT
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/.
AUTHORS
opengl.org
opengl.org 04/29/2014 GLFRAMEBUFFERTEXTURE(3G)
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