This is a "far from perfect" converter that takes gnuplot table output
and splits it in polygons. Then it calls sipp to render it.
You get sipp from isy.liu.se:/pub/sipp or ask archie.
try this:
set samples 40
set isosamples 40
splot sin(x)*sin(y)/x/y
set output "out.table"
set term table
replot

then go back to the shell and do:
gnuconv -s 400 <out.table

and:
xv /tmp/out.ppm

This software uses the sipp library. So you have to install it first.
samples and isosamples have to be the same. If you want it to be more
smooth and increase this number you have to recompile with a greater 
x in feld[x][3].

Options in gnuconv are:
-l for line rendering; similar to what gnuplot does.
-p for phong shading; default
-g gouraud shading
-f flat shading 
-s size; the x and y size of the rendered image

I did not include this into gnuplot because i don't know how:)
But i don't expect it to be very difficult for one who knows some internas
of gnuplot. Perhaps i will improve this program to be worth to be "released"
but most things i could add (automatic resizing, addition of contourcolors)
are much more easy just to take from the existing gnuplot.
ciao
Carsten Hammer
chammer@POST.uni-bielefeld.de 
