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NAME
glInvalidateFramebuffer, glInvalidateNamedFramebufferData - invalidate the content of some
or all of a framebuffer's attachments
C SPECIFICATION
void glInvalidateFramebuffer(GLenum target, GLsizei numAttachments,
const GLenum * attachments);
void glInvalidateNamedFramebufferData(GLuint framebuffer, GLsizei numAttachments,
const GLenum *attachments);
PARAMETERS
target
Specifies the target to which the framebuffer object is attached for
glInvalidateFramebuffer.
framebuffer
Specifies the name of the framebuffer object for glInvalidateNamedFramebufferData.
numAttachments
Specifies the number of entries in the attachments array.
attachments
Specifies a pointer to an array identifying the attachments to be invalidated.
DESCRIPTION
glInvalidateFramebuffer and glInvalidateNamedFramebufferData invalidate the entire
contents of a specified set of attachments of a framebuffer.
For glInvalidateFramebuffer, the framebuffer object is that bound to target. target must
be GL_FRAMEBUFFER, GL_READ_FRAMEBUFFER or GL_DRAW_FRAMEBUFFER. GL_FRAMEBUFFER is
equivalent to GL_DRAW_FRAMEBUFFER. Default framebuffers may also be invalidated if bound
to target.
For glInvalidateNamedFramebufferData, framebuffer is the name of the framebuffer object.
If framebuffer is zero, the default draw framebuffer is affected.
The set of attachments whose contents are to be invalidated are specified in the
attachments array, which contains numAttachments elements.
If the specified framebuffer is a framebuffer object, each element of attachments must be
one of GL_DEPTH_ATTACHMENT, GL_STENCIL_ATTACHMENT GL_DEPTH_STENCIL_ATTACHMENT, or
GL_COLOR_ATTACHMENTi, where i is between zero and the value of
GL_MAX_FRAMEBUFFER_ATTACHMENTS minus one.
If the specified framebuffer is a default framebuffer, each element of attachments must be
one of GL_FRONT_LEFT, GL_FRONT_RIGHT, GL_BACK_LEFT, GL_BACK_RIGHT, GL_AUXi, GL_ACCUM,
GL_COLOR, GL_DEPTH, or GL_STENCIL. GL_COLOR, is treated as GL_BACK_LEFT for a
double-buffered context and GL_FRONT_LEFT for a single-buffered context. The other
attachments identify the corresponding specific buffer.
The entire contents of each specified attachment become undefined after execution of
glInvalidateFramebuffer or glInvalidateNamedFramebufferData.
If the framebuffer object is not complete, glInvalidateFramebuffer and
glInvalidateNamedFramebufferData may be ignored. This is not an error.
ERRORS
GL_INVALID_ENUM is generated by glInvalidateFramebuffer if target is not one of the
accepted framebuffer targets.
GL_INVALID_OPERATION is generated by glInvalidateNamedFramebufferData if framebuffer is
not zero or the name of an existing framebuffer object.
GL_INVALID_VALUE is generated if numAttachments is negative.
GL_INVALID_ENUM is generated if any element of attachments is not one of the accepted
framebuffer attachment points, as described above.
GL_INVALID_OPERATION is generated if element of attachments is GL_COLOR_ATTACHMENTm where
m is greater than or equal to the value of GL_MAX_COLOR_ATTACHMENTS.
ASSOCIATED GETS
glGet() with argument GL_MAX_COLOR_ATTACHMENTS
VERSION SUPPORT
┌─────────────────────────────────┬───────────────────────────────────────────────────────────────────────┐
│ │ OpenGL Version │
├─────────────────────────────────┼─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┤
│Function │ 2.0 │ 2.1 │ 3.0 │ 3.1 │ 3.2 │ 3.3 │ 4.0 │ 4.1 │ 4.2 │ 4.3 │ 4.4 │ 4.5 │
│/ │ │ │ │ │ │ │ │ │ │ │ │ │
│Feature │ │ │ │ │ │ │ │ │ │ │ │ │
│Name │ │ │ │ │ │ │ │ │ │ │ │ │
├─────────────────────────────────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┤
│glInvalidateFramebuffer │ - │ - │ - │ - │ - │ - │ - │ - │ - │ ✔ │ ✔ │ ✔ │
├─────────────────────────────────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┤
│glInvalidateNamedFramebufferData │ - │ - │ - │ - │ - │ - │ - │ - │ - │ - │ - │ ✔ │
└─────────────────────────────────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┘
SEE ALSO
glInvalidateTexSubImage(), glInvalidateTexImage(), glInvalidateBufferSubData(),
glInvalidateBufferData(), glInvalidateSubFramebuffer().
COPYRIGHT
Copyright © 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/.
COPYRIGHT
Copyright © 2014 Khronos Group
[FIXME: source] 01/03/2018 GLINVALIDATEFRAMEBUF(3G)