glArrayElement - render a vertex using the specified vertex
	  array	element

	  void glArrayElement( GLint i )

	  i  Specifies an index	into the enabled vertex	data arrays.

	  glArrayElement commands are used within glBegin/glEnd	pairs
	  to specify vertex and	attribute data for point, line,	and
	  polygon primitives. If GL_VERTEX_ARRAY is enabled when
	  glArrayElement is called, a single vertex is drawn, using
	  vertex and attribute data taken from location	i of the
	  enabled arrays. If GL_VERTEX_ARRAY is	not enabled, no
	  drawing occurs but the attributes corresponding to the
	  enabled arrays are modified.

	  Use glArrayElement to	construct primitives by	indexing
	  vertex data, rather than by streaming	through	arrays of data
	  in first-to-last order. Because each call specifies only a
	  single vertex, it is possible	to explicitly specify per-
	  primitive attributes such as a single	normal per individual

	  Changes made to array	data between the execution of glBegin
	  and the corresponding	execution of glEnd may affect calls to
	  glArrayElement that are made within the same glBegin/glEnd
	  period in non-sequential ways.  That is, a call to
	  glArrayElement that precedes a change	to array data may
	  access the changed data, and a call that follows a change to
	  array	data may access	original data.

	  glArrayElement is available only if the GL version is	1.1 or

	  glArrayElement is included in	display	lists. If
	  glArrayElement is entered into a display list, the necessary
	  array	data (determined by the	array pointers and enables) is
	  also entered into the	display	list. Because the array
	  pointers and enables are client-side state, their values
	  affect display lists when the	lists are created, not when
	  the lists are	executed.

	  glColorPointer, glDrawArrays,	glEdgeFlagPointer,
	  glIndexPointer, glInterleavedArrays, glNormalPointer,
	  glTexCoordPointer, glVertexPointer