       SippBezierCurve resolution vertexlist curvelist shaderhandle [texture]
              Define an object using a Bezier curve rotated about
              the z-axis.  Resolution it the number  of  polygons
              to  tessellate  the  surface into.  Vertexlist is a
              list of vertices of the curve.  Each element of the
              list is a list contain the X, Y and Z vertices.

              Curvelist  a  list  of indices into vertexlist that
              defined the curve.  Each element of the  list  con-
              tains  a  list of 4 indices. These indices are zero
              based. For example:

                  {{0 1 2 3}
                   {4 4 5 7}
                   {6 7 8 9}}

              shaderhandleis handle to a previously created  sur-
              face shading specification.

              Texture is the texture mapping algorithm to use for
              the object.  The texture coordinates are a bit spe-
              cial for these surfaces.  SPHERICAL and CYLINDRICAL
              mappings are not applicable,  and  NATURAL  mapping
              will  apply to the piece of surface created by each
              Bezier curve separately. The NATURAL  mapping  uses
              the curve parameter u along each curve as x coordi-
              nate and goes from 0 to 1 around the  perimeter  of
              the rotational surface on the other axis

              See   the   help  file  sipp/Texture-Map  for  more
              details.

              An object handle is returned.
