\documentclass{article} \usepackage{pst-solides3d} \begin{document} \pagestyle {empty} \begin{center} \begin{pspicture}(-4,-4)(4,4) \psset{lightsrc=50 30 20,viewpoint=20 10 5,Decran=50} \psSolid[object=octahedron, a=2, trunc=all, hue=.5 .6, trunccoeff=.3333, show=all, num=all, action=draw*] \end{pspicture} \end{center} \end{document}