glFramebufferParameteri, glNamedFramebufferParameteri — set a named parameter of a framebuffer object
void glFramebufferParameteri(
|
GLenum target, |
| GLenum pname, | |
GLint param); |
void glNamedFramebufferParameteri(
|
GLuint framebuffer, |
| GLenum pname, | |
GLint param); |
target
Specifies the target to which the framebuffer is bound
for glFramebufferParameteri.
framebuffer
Specifies the name of the framebuffer object for
glNamedFramebufferParameteri.
pname
Specifies the framebuffer parameter to be modified.
param
The new value for the parameter named
pname.
glFramebufferParameteri and
glNamedFramebufferParameteri modify the
value of the parameter named pname in the
specified framebuffer object. There are no modifiable parameters
of the default draw and read framebuffer, so they are not valid
targets of these commands.
For glFramebufferParameteri,
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 glNamedFramebufferParameteri,
framebuffer is the name of the
framebuffer object.
pname specifies the parameter to be
modified. The following values are accepted:
GL_FRAMEBUFFER_DEFAULT_WIDTH
param specifies the assumed with for a framebuffer object with no attachments. If a
framebuffer has attachments then the width of those attachments is used, otherwise
the value of GL_FRAMEBUFFER_DEFAULT_WIDTH is used for the
framebuffer. param must be greater than or equal to zero and less than
or equal to the value of GL_MAX_FRAMEBUFFER_WIDTH.
GL_FRAMEBUFFER_DEFAULT_HEIGHT
param specifies the assumed height for a framebuffer object with no attachments. If a
framebuffer has attachments then the height of those attachments is used, otherwise
the value of GL_FRAMEBUFFER_DEFAULT_HEIGHT is used for the
framebuffer. param must be greater than or equal to zero and less than
or equal to the value of GL_MAX_FRAMEBUFFER_HEIGHT.
GL_FRAMEBUFFER_DEFAULT_LAYERS
param specifies the assumed number of layers for a framebuffer object with no attachments. If a
framebuffer has attachments then the layer count of those attachments is used, otherwise
the value of GL_FRAMEBUFFER_DEFAULT_LAYERS is used for the
framebuffer. param must be greater than or equal to zero and less than
or equal to the value of GL_MAX_FRAMEBUFFER_LAYERS.
GL_FRAMEBUFFER_DEFAULT_SAMPLES
param specifies the assumed number of samples in a framebuffer object with no attachments. If a
framebuffer has attachments then the sample count of those attachments is used, otherwise
the value of GL_FRAMEBUFFER_DEFAULT_SAMPLES is used for the
framebuffer. param must be greater than or equal to zero and less than
or equal to the value of GL_MAX_FRAMEBUFFER_SAMPLE.
GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
param specifies whether the framebuffer should assume identical sample locations and
the same number of samples for all texels in the virtual image. If param is zero,
then the implementation may vary the position or the count of samples within the virtual image from
pixel to pixel, otherwise it will use the same sample position and count for all pixels in the virtual image.
GL_INVALID_ENUM is generated by
glFramebufferParameteri if
target is not one of the accepted
framebuffer targets.
GL_INVALID_OPERATION is generated by
glFramebufferParameteri if the default
framebuffer is bound to target.
GL_INVALID_OPERATION is generated by
glNamedFramebufferParameteri if
framebuffer is not the name of an
existing framebuffer object.
GL_INVALID_VALUE is generated if
pname is
GL_FRAMEBUFFER_DEFAULT_WIDTH and
param is less than zero or greater than
the value of GL_MAX_FRAMEBUFFER_WIDTH.
GL_INVALID_VALUE is generated if
pname is
GL_FRAMEBUFFER_DEFAULT_HEIGHT and
param is less than zero or greater than
the value of GL_MAX_FRAMEBUFFER_HEIGHT.
GL_INVALID_VALUE is generated if
pname is
GL_FRAMEBUFFER_DEFAULT_LAYERS and
param is less than zero or greater than
the value of GL_MAX_FRAMEBUFFER_LAYERS.
GL_INVALID_VALUE is generated if
pname is
GL_FRAMEBUFFER_DEFAULT_SAMPLES and
param is less than zero or greater than
the value of GL_MAX_FRAMEBUFFER_SAMPLES.
glGetFramebufferParameteriv.
| 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 |
glFramebufferParameteri
|
- | - | - | - | - | - | - | - | - | ✔ | ✔ | ✔ |
glNamedFramebufferParameteri
|
- | - | - | - | - | - | - | - | - | - | - | ✔ |
glBindFramebuffer, glCreateFramebuffers, glFramebufferRenderbuffer, glFramebufferTexture, glGenFramebuffers, glGetFramebufferParameter
Copyright © 2013-2014 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/.