NAME
	  gluTessBeginContour, gluTessEndContour - delimit a contour
	  description


     C SPECIFICATION
	  void gluTessBeginContour( GLUtesselator* tess	)

	  void gluTessEndContour( GLUtesselator* tess )


     PARAMETERS
	  tess	Specifies the tessellation object (created with
		gluNewTess).

     DESCRIPTION
	  gluTessBeginContour and gluTessEndContour delimit the
	  definition of	a polygon contour. Within each
	  gluTessBeginContour/gluTessEndContour	pair, there can	be
	  zero or more calls to	gluTessVertex. The vertices specify a
	  closed contour (the last vertex of each contour is
	  automatically	linked to the first).  See the gluTessVertex
	  reference page for more details.  gluTessBeginContour	can
	  only be called between gluTessBeginPolygon and
	  gluTessEndPolygon.

     SEE ALSO
	  gluNewTess, gluTessBeginPolygon, gluTessVertex,
	  gluTessCallback, gluTessProperty, gluTessNormal,
	  gluTessEndPolygon