\psset{lightsrc=50 10 30}

\psset{viewpoint=50 -10 30 rtp2xyz,Decran=30}
\begin{pspicture}(-5,-2)(5,5)
\psframe(-5,-2)(5,5)
\psSolid[object=new,RotX=90,RotY=-20,RotZ=20,hue=0 0.9 0.5 1,hollow,incolor=yellow!50,
    sommets= (sommets_vw.dat) run,linewidth=0.5\pslinewidth,
    faces={(faces_vw.dat) run}]%
\end{pspicture}