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glinvalidatesubframebuffer(3g) [centos man page]

GLINVALIDATESUBFRAME(3G)					   OpenGL Manual					  GLINVALIDATESUBFRAME(3G)

NAME
glInvalidateSubFramebuffer - invalidate the content of a region of some or all of a framebuffer object's attachments C SPECIFICATION
void glInvalidateSubFramebuffer(GLenum target, GLsizei numAttachments, const GLenum * attachments, GLint x, GLint y, GLint width, GLint height); PARAMETERS
target The target to which the framebuffer is attached. target must be GL_FRAMEBUFFER, GL_DRAW_FRAMEBUFFER, or GL_READ_FRAMEBUFFER. numAttachments The number of entries in the attachments array. attachments The address of an array identifying the attachments to be invalidated. x The X offset of the region to be invalidated. y The Y offset of the region to be invalidated. width The width of the region to be invalidated. height The height of the region to be invalidated. DESCRIPTION
glInvalidateSubFramebuffer invalidates the content of a region of a specified set of attachments of a framebuffer. The framebuffer whose content to invalidate is indicated by setting target to the target to which it is bound. target may be GL_FRAMEBUFFER, GL_READ_FRAMEBUFFER or GL_DRAW_FRAMEBUFFER. GL_FRAMEBUFFER is treated as if it were GL_DRAW_FRAMEBUFFER. A region within a subset of the framebuffer's attachments may be invalidated. This set of attachments are specified in an array whose address is given by attachments and which contains numAttachments elements. The elements of attachments must be GL_DEPTH_ATTACHMENT, GL_STENCIL_ATTACHMENTGL_DEPTH_STENCIL_ATTACHMENT, or GL_COLOR_ATTACHMENTi, where i is between zero and the value of GL_MAX_FRAMEBUFFER_ATTACHMENTS minus one. Furthermore, if the default framebuffer is bound to target, then attachments may contain GL_FRONT_LEFT, GL_FRONT_RIGHT, GL_BACK_LEFT, GL_BACK_RIGHT, GL_AUXi, GL_ACCUM, GL_COLOR, GL_DEPTH, or GL_STENCIL, identifying that specific buffer. GL_COLOR, is treated as GL_BACK_LEFT for a double-buffered context and GL_FRONT_LEFT for a single-buffered context. The region of the framebuffer attachments to be invalidated is specified by x, y, width and height where x and y give the offset from the origin (with lower-left corner at (0, 0)) and width and height give the size. Any pixels lying outside of the window allocated to the current GL context, or outside of the attachments of the currently bound framebuffer object, are ignored. After glInvalidateFramebuffer is executed, the contents of the specified region of the specified attachments become undefined. ERRORS
GL_INVALID_ENUM is generated if target is not one of the accepted framebuffer target tokens. GL_INVALID_ENUM is generated if any element of attachments is not one of the accepted framebuffer attachment tokens. GL_INVALID_OPERATION is generated if element of attachments is GL_COLOR_ATTACHMENTi where i is greater than or equal to the value of GL_MAX_COLOR_ATTACHMENTS. ASSOCIATED GETS
glGet() with argument GL_MAX_COLOR_ATTACHMENTS SEE ALSO
glInvalidateTexSubImage(), glInvalidateTexImage(), glInvalidateBufferSubData(), glInvalidateBufferData(), glInvalidateFramebuffer(). COPYRIGHT
Copyright (C) 2012 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 06/10/2014 GLINVALIDATESUBFRAME(3G)

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GLBINDFRAMEBUFFER(3G)						   OpenGL Manual					     GLBINDFRAMEBUFFER(3G)

NAME
glBindFramebuffer - bind a framebuffer to a framebuffer target C SPECIFICATION
void glBindFramebuffer(GLenum target, GLuint framebuffer); PARAMETERS
target Specifies the framebuffer target of the binding operation. framebuffer Specifies the name of the framebuffer object to bind. DESCRIPTION
glBindFramebuffer binds the framebuffer object with name framebuffer to the framebuffer target specified by target. target must be either GL_DRAW_FRAMEBUFFER, GL_READ_FRAMEBUFFER or GL_FRAMEBUFFER. If a framebuffer object is bound to GL_DRAW_FRAMEBUFFER or GL_READ_FRAMEBUFFER, it becomes the target for rendering or readback operations, respectively, until it is deleted or another framebuffer is bound to the corresponding bind point. Calling glBindFramebuffer with target set to GL_FRAMEBUFFER binds framebuffer to both the read and draw framebuffer targets. framebuffer is the name of a framebuffer object previously returned from a call to glGenFramebuffers(), or zero to break the existing binding of a framebuffer object to target. ERRORS
GL_INVALID_ENUM is generated if target is not GL_DRAW_FRAMEBUFFER, GL_READ_FRAMEBUFFER or GL_FRAMEBUFFER. GL_INVALID_OPERATION is generated if framebuffer is not zero or the name of a framebuffer previously returned from a call to glGenFramebuffers(). SEE ALSO
glGenFramebuffers(), glDeleteFramebuffers(), glFramebufferRenderbuffer(), glFramebufferTexture(), glFramebufferTexture1D(), glFramebufferTexture2D(), glFramebufferTexture3D(), glFramebufferTextureFace(), glFramebufferTextureLayer(), glIsFramebuffer() COPYRIGHT
Copyright (C) 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 06/10/2014 GLBINDFRAMEBUFFER(3G)
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