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GLFRAMEBUFFERTEXTURE(3G)	 OpenGL Manual	      GLFRAMEBUFFERTEXTURE(3G)

NAME
       glFramebufferTexture - attach a level of a texture object as a logical
       buffer to the currently bound framebuffer object

C SPECIFICATION
       void glFramebufferTexture(GLenum target, GLenum attachment,
				 GLuint texture, GLint level);

       void glFramebufferTexture1D(GLenum target, GLenum attachment,
				   GLenum textarget, GLuint texture,
				   GLint level);

       void glFramebufferTexture2D(GLenum target, GLenum attachment,
				   GLenum textarget, GLuint texture,
				   GLint level);

       void glFramebufferTexture3D(GLenum target, GLenum attachment,
				   GLenum textarget, GLuint texture,
				   GLint level, GLint layer);

PARAMETERS
       target
	   Specifies the framebuffer target.  target must be
	   GL_DRAW_FRAMEBUFFER, GL_READ_FRAMEBUFFER, or GL_FRAMEBUFFER.
	   GL_FRAMEBUFFER is equivalent to GL_DRAW_FRAMEBUFFER.

       attachment
	   Specifies the attachment point of the framebuffer.  attachment must
	   be GL_COLOR_ATTACHMENTi, GL_DEPTH_ATTACHMENT, GL_STENCIL_ATTACHMENT
	   or GL_DEPTH_STENCIL_ATTACHMMENT.

       textarget
	   For glFramebufferTexture1D, glFramebufferTexture2D and
	   glFramebufferTexture3D, specifies what type of texture is expected
	   in the texture parameter, or for cube map textures, which face is
	   to be attached.

       texture
	   Specifies the texture object to attach to the framebuffer
	   attachment point named by attachment.

       level
	   Specifies the mipmap level of texture to attach.

DESCRIPTION
       glFramebufferTexture, glFramebufferTexture1D, glFramebufferTexture2D,
       and glFramebufferTexture attach a selected mipmap level or image of a
       texture object as one of the logical buffers of the framebuffer object
       currently bound to target.  target 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_ATTACHMENTi, GL_DEPTH_ATTACHMENT, GL_STENCIL_ATTACHMENT or
       GL_DEPTH_STENCIL_ATTACHMMENT.  i in GL_COLOR_ATTACHMENTi may range from
       zero to the value of GL_MAX_COLOR_ATTACHMENTS - 1. Attaching a level of
       a texture to GL_DEPTH_STENCIL_ATTACHMENT is equivalent to attaching
       that level to both the GL_DEPTH_ATTACHMENTand the GL_STENCIL_ATTACHMENT
       attachment points simultaneously.

       textarget specifies what type of texture is named by texture, and for
       cube map textures, specifies the face that is to be attached. If
       texture is not zero, it must be the name of an existing texture with
       type textarget, unless it is a cube map texture, in which case
       textarget must be
       GL_TEXTURE_CUBE_MAP_POSITIVE_XGL_TEXTURE_CUBE_MAP_NEGATIVE_X,
       GL_TEXTURE_CUBE_MAP_POSITIVE_Y, GL_TEXTURE_CUBE_MAP_NEGATIVE_Y,
       GL_TEXTURE_CUBE_MAP_POSITIVE_Z, or GL_TEXTURE_CUBE_MAP_NEGATIVE_Z.

       If texture is non-zero, the specified level of the texture object named
       texture is attached to the framebfufer attachment point named by
       attachment. For glFramebufferTexture1D, glFramebufferTexture2D, and
       glFramebufferTexture3D, texture must be zero or the name of an existing
       texture with a target of textarget, or texture must be the name of an
       existing cube-map texture and textarget must be one of
       GL_TEXTURE_CUBE_MAP_POSITIVE_X, GL_TEXTURE_CUBE_MAP_POSITIVE_Y,
       GL_TEXTURE_CUBE_MAP_POSITIVE_Z, GL_TEXTURE_CUBE_MAP_NEGATIVE_X,
       GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, or GL_TEXTURE_CUBE_MAP_NEGATIVE_Z.

       If textarget is GL_TEXTURE_RECTANGLE, GL_TEXTURE_2D_MULTISAMPLE, or
       GL_TEXTURE_2D_MULTISAMPLE_ARRAY, then level must be zero. If textarget
       is GL_TEXTURE_3D, then level must be greater than or equal to zero and
       less than or equal to log2 of the value of GL_MAX_3D_TEXTURE_SIZE. If
       textarget is one of GL_TEXTURE_CUBE_MAP_POSITIVE_X,
       GL_TEXTURE_CUBE_MAP_POSITIVE_Y, GL_TEXTURE_CUBE_MAP_POSITIVE_Z,
       GL_TEXTURE_CUBE_MAP_NEGATIVE_X, GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, or
       GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, then level must be greater than or
       equal to zero and less than or equal to log2 of the value of
       GL_MAX_CUBE_MAP_TEXTURE_SIZE. For all other values of textarget, level
       must be greater than or equal to zero and no larger than log2 of the
       value of GL_MAX_TEXTURE_SIZE.

       layer specifies the layer of a 2-dimensional image within a
       3-dimensional texture.

       For glFramebufferTexture1D, if texture is not zero, then textarget must
       be GL_TEXTURE_1D. For glFramebufferTexture2D, if texture is not zero,
       textarget must be one of GL_TEXTURE_2D, GL_TEXTURE_RECTANGLE,
       GL_TEXTURE_CUBE_MAP_POSITIVE_X, GL_TEXTURE_CUBE_MAP_POSITIVE_Y,
       GL_TEXTURE_CUBE_MAP_POSITIVE_Z, GL_TEXTURE_CUBE_MAP_NEGATIVE_X,
       GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, or
       GL_TEXTURE_2D_MULTISAMPLE. For glFramebufferTexture3D, if texture is
       not zero, then textarget must be GL_TEXTURE_3D.

NOTES
       glFramebufferTexture is available only if the GL version is 3.2 or
       greater.

ERRORS
       GL_INVALID_ENUM is generated if target is not one of the accepted
       tokens.

       GL_INVALID_ENUM is generated if renderbuffertarget is not
       GL_RENDERBUFFER.

       GL_INVALID_OPERATION is generated if zero is bound to target.

       GL_INVALID_OPERATION is generated if textarget and texture are not
       compatible.

SEE ALSO
       glGenFramebuffers(), glBindFramebuffer(), glGenRenderbuffers(),
       glFramebufferTexture(), glFramebufferTexture1D(),
       glFramebufferTexture2D(), glFramebufferTexture3D()

COPYRIGHT
       Copyright © 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			  04/29/2014	      GLFRAMEBUFFERTEXTURE(3G)
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