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GLFOGCOORDPOINTER(3G)		 OpenGL Manual		 GLFOGCOORDPOINTER(3G)

NAME
       glFogCoordPointer - define an array of fog coordinates

C SPECIFICATION
       void glFogCoordPointer(GLenum type, GLsizei stride, GLvoid * pointer);

PARAMETERS
       type
	   Specifies the data type of each fog coordinate. Symbolic constants
	   GL_FLOAT, or GL_DOUBLE are accepted. The initial value is GL_FLOAT.

       stride
	   Specifies the byte offset between consecutive fog coordinates. If
	   stride is 0, the array elements are understood to be tightly
	   packed. The initial value is 0.

       pointer
	   Specifies a pointer to the first coordinate of the first fog
	   coordinate in the array. The initial value is 0.

DESCRIPTION
       glFogCoordPointer specifies the location and data format of an array of
       fog coordinates to use when rendering.  type specifies the data type of
       each fog coordinate, and stride specifies the byte stride from one fog
       coordinate to the next, allowing vertices and attributes to be packed
       into a single array or stored in separate arrays.

       If a non-zero named buffer object is bound to the GL_ARRAY_BUFFER
       target (see glBindBuffer()) while a fog coordinate array is specified,
       pointer is treated as a byte offset into the buffer object's data
       store. Also, the buffer object binding (GL_ARRAY_BUFFER_BINDING) is
       saved as fog coordinate vertex array client-side state
       (GL_FOG_COORD_ARRAY_BUFFER_BINDING).

       When a fog coordinate array is specified, type, stride, and pointer are
       saved as client-side state, in addition to the current vertex array
       buffer object binding.

       To enable and disable the fog coordinate array, call
       glEnableClientState() and glDisableClientState() with the argument
       GL_FOG_COORD_ARRAY. If enabled, the fog coordinate array is used when
       glDrawArrays(), glMultiDrawArrays(), glDrawElements(),
       glMultiDrawElements(), glDrawRangeElements(), or glArrayElement() is
       called.

NOTES
       glFogCoordPointer is available only if the GL version is 1.4 or
       greater.

       Fog coordinates are not supported for interleaved vertex array formats
       (see glInterleavedArrays()).

       The fog coordinate array is initially disabled and isn't accessed when
       glArrayElement(), glDrawElements(), glDrawRangeElements(),
       glDrawArrays(), glMultiDrawArrays(), or glMultiDrawElements() is
       called.

       Execution of glFogCoordPointer is not allowed between the execution of
       glBegin() and the corresponding execution of glEnd(), but an error may
       or may not be generated. If no error is generated, the operation is
       undefined.

       glFogCoordPointer is typically implemented on the client side with no
       protocol.

       Fog coordinate array parameters are client-side state and are therefore
       not saved or restored by glPushAttrib() and glPopAttrib(). Use
       glPushClientAttrib() and glPopClientAttrib() instead.

ERRORS
       GL_INVALID_ENUM is generated if type is not either GL_FLOAT or
       GL_DOUBLE.

       GL_INVALID_VALUE is generated if stride is negative.

ASSOCIATED GETS
       glIsEnabled() with argument GL_FOG_COORD_ARRAY

       glGet() with argument GL_FOG_COORD_ARRAY_STRIDE

       glGet() with argument GL_FOG_COORD_ARRAY_TYPE

       glGet() with argument GL_FOG_COORD_ARRAY_BUFFER_BINDING

       glGet() with argument GL_ARRAY_BUFFER_BINDING

       glGetPointerv() with argument GL_FOG_COORD_ARRAY_POINTER

SEE ALSO
       glArrayElement(), glBindBuffer(), glColorPointer(),
       glDisableClientState(), glDrawArrays(), glDrawElements(),
       glDrawRangeElements(), glEdgeFlagPointer(), glEnableClientState(),
       glFogCoord(), glIndexPointer(), glInterleavedArrays(),
       glMultiDrawArrays(), glMultiDrawElements(), glNormalPointer(),
       glPopClientAttrib(), glPushClientAttrib(), glSecondaryColorPointer(),
       glTexCoordPointer(), glVertexAttribPointer(), glVertexPointer()

COPYRIGHT
       Copyright © 1991-2006 Silicon Graphics, Inc. This document is licensed
       under the SGI Free Software B License. For details, see
       http://oss.sgi.com/projects/FreeB/.

AUTHORS
       opengl.org

opengl.org			  03/16/2013		 GLFOGCOORDPOINTER(3G)

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