glFramebufferTexture — attach a level of a texture object as a logical buffer of a framebuffer object
void glFramebufferTexture(
|
GLenum target, |
GLenum attachment, | |
GLuint texture, | |
GLint level) ; |
target
Specifies the target to which the framebuffer is bound.
attachment
Specifies the attachment point of the framebuffer.
texture
Specifies the name of an existing texture object to attach.
level
Specifies the mipmap level of the texture object to attach.
glFramebufferTexture
attaches a selected mipmap level or image of a
texture object as one of the logical buffers of the framebuffer object
bound to the specified target. Textures cannot be attached to the default
draw and read framebuffer, so they are not valid targets of
these commands.
The framebuffer
object is that bound to target
, which
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_ATTACHMENT
i,
GL_DEPTH_ATTACHMENT
,
GL_STENCIL_ATTACHMENT
or
GL_DEPTH_STENCIL_ATTACHMENT
.
i in
GL_COLOR_ATTACHMENT
i
may range from zero to the value of
GL_MAX_COLOR_ATTACHMENTS
minus one.
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.
If texture
is non-zero, the specified
level
of the texture object named
texture
is attached to the framebuffer
attachment point named by attachment
.
If texture
is a multisampled texture, then
level
must be zero.
If texture
is a 3D texture, then
level
must be greater than or equal to
zero and less than or equal to $log_2$ of the value of
GL_MAX_3D_TEXTURE_SIZE
.
If texture
is a cube-mapped texture, then
level
must be greater than or equal to
zero and less than or equal to $log_2$ of the value of
GL_MAX_CUBE_MAP_TEXTURE_SIZE
.
For all other texture types,
level
must be greater than or equal to
zero and less than or equal to $log_2$ of the value of
GL_MAX_TEXTURE_SIZE
.
If
texture
is the name of a
three-dimensional, cube map array, cube map,
two-dimensional array, or two-dimensional multisample array
texture, the specified texture level is an array of images, and
the framebuffer attachment is considered to be
layered and
GL_FRAMEBUFFER_ATTACHMENT_LAYERED
is set to true.
GL_INVALID_ENUM
is generated if
target
if
it is not GL_DRAW_FRAMEBUFFER
,
GL_READ_FRAMEBUFFER
, or
GL_FRAMEBUFFER
GL_INVALID_OPERATION
is generated if zero
is bound to target
.
GL_INVALID_ENUM
is generated if
attachment
is not one of the accepted
attachment points.
GL_INVALID_VALUE
is generated if
texture
is not zero or the name of an
existing texture object.
GL_INVALID_VALUE
is generated if
texture
is not zero and
level
is not a supported texture level
for texture
.
GL_INVALID_OPERATION
is generated by
if texture
is a buffer texture.
OpenGL ES API Version | ||||
---|---|---|---|---|
Function Name | 2.0 | 3.0 | 3.1 | 3.2 |
glFramebufferTexture
|
- | - | - | ✔ |
glGenFramebuffers, glBindFramebuffer, glGenRenderbuffers, glFramebufferTextureLayer, glFramebufferTexture2D
Copyright © 2010-2015 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. https://opencontent.org/openpub/.