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

DESCRIPTION
       gluTessBeginPolygon  and  gluTessEndPolygon  delimit the definition of a
       convex,   concave   or   self-intersecting    polygon.    Within    each
       gluTessBeginPolygon/gluTessEndPolygon  pair,  there  must be one or more
       calls to gluTessBeginContour/gluTessEndContour.   Within  each  contour,
       there  are  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,  gluTessBeginContour  and
       gluTessEndContour reference pages for more details.

       Once gluTessEndPolygon is called, the polygon is  tessellated,  and  the
       resulting    triangles    are    described   through   callbacks.    See
       gluTessCallback for descriptions of the callback functions.

EXAMPLE
       A quadrilateral with a triangular hole in it can be described like this:

       gluTessBeginPolygon(tobj, NULL);
        gluTessBeginContour(tobj);
          gluTessVertex(tobj, v1, v1);
          gluTessVertex(tobj, v2, v2);
          gluTessVertex(tobj, v3, v3);
          gluTessVertex(tobj, v4, v4);
        gluTessEndContour(tobj);
        gluTessBeginContour(tobj);
          gluTessVertex(tobj, v5, v5);
          gluTessVertex(tobj, v6, v6);
          gluTessVertex(tobj, v7, v7);
        gluTessEndContour(tobj); gluTessEndPolygon(tobj);
       In the above example the pointers, v1 through v7, should point  to  dif‐
       ferent addresses, since the values stored at these addresses will not be
       read by the tesselator until gluTessEndPolygon is called.

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

                                                          GLUTESSENDPOLYGON(3G)