glFramebufferTextureLayer, glNamedFramebufferTextureLayer — attach a single layer of a texture object as a logical buffer of a framebuffer object
void glFramebufferTextureLayer(
|
GLenum target, |
| GLenum attachment, | |
| GLuint texture, | |
| GLint level, | |
GLint layer); |
void glNamedFramebufferTextureLayer(
|
GLuint framebuffer, |
| GLenum attachment, | |
| GLuint texture, | |
| GLint level, | |
GLint layer); |
target
Specifies the target to which the framebuffer is bound
for glFramebufferTextureLayer.
framebuffer
Specifies the name of the framebuffer object for
glNamedFramebufferTextureLayer.
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.
layer
Specifies the layer of the texture object to attach.
glFramebufferTextureLayer and
glNamedFramebufferTextureLayer attach a
single layer of a three-dimensional or array texture object as
one of the logical buffers of the specified framebuffer object.
Textures cannot be attached to the default draw and read
framebuffer, so they are not valid targets of these commands.
For
glFramebufferTextureLayer, 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.
For glNamedFramebufferTextureLayer,
framebuffer is the name of the
framebuffer object.
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 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 not zero, it must be the
name of a three-dimensional, two-dimensional multisample array,
one- or two-dimensional array, or cube map array texture.
If texture is a three-dimensional
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 two-dimensional array
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_TEXTURE_SIZE.
For cube map textures, layer is
translated into a cube map face according to
$$ face = k \bmod 6. $$
For cube map array textures, layer is
translated into an array layer and face according to
$$ layer = \left\lfloor { layer \over 6 } \right\rfloor$$
and
$$ face = k \bmod 6. $$
GL_INVALID_ENUM is generated by
glFramebufferTexture if
target is not one of the accepted
framebuffer targets.
GL_INVALID_OPERATION is generated
by glFramebufferTexture if
zero is bound to target.
GL_INVALID_OPERATION is generated by
glNamedFramebufferTexture if
framebuffer is not the name of an
existing framebuffer object.
GL_INVALID_ENUM is generated if
attachment is not one of the accepted
attachment points.
GL_INVALID_OPERATION is generated if
texture is not zero and is not the name
of an existing three-dimensional, two-dimensional multisample
array, one- or two-dimensional array, cube map, or cube map
array texture.
GL_INVALID_VALUE is generated if
texture is not zero and
level is not a supported texture level
for texture, as described above.
GL_INVALID_VALUE is generated if
texture is not zero and
layer is larger than the value of
GL_MAX_3D_TEXTURE_SIZE minus one (for
three-dimensional texture objects), or larger than the value of
GL_MAX_ARRAY_TEXTURE_LAYERS minus one (for
array texture objects).
GL_INVALID_VALUE is generated if
texture is not zero and
layer is negative.
GL_INVALID_OPERATION is generated by
if texture is a buffer texture.
| OpenGL Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Function / Feature Name | 2.0 | 2.1 | 3.0 | 3.1 | 3.2 | 3.3 | 4.0 | 4.1 | 4.2 | 4.3 | 4.4 | 4.5 |
glFramebufferTextureLayer
|
- | - | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
glNamedFramebufferTextureLayer
|
- | - | - | - | - | - | - | - | - | - | - | ✔ |
Copyright © 2010-2014 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/.