\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} \psset{solidmemory} \psSolid[object=octahedron, a=2, trunc=all, hue=.5 .6, trunccoeff=.3333, name=my_octahedron, action=draw*] \psSolid[object=point, definition=solidgetsommet, args=my_octahedron 0, fontsize=20, text=A, pos=cl, ] \psSolid[object=point, definition=solidgetsommet, args=my_octahedron 1, linecolor=red, fontsize=20, text=B, pos=uc, ] \psSolid[object=point, definition=solidgetsommet, args=my_octahedron 2, linecolor=red, fontsize=20, text=C, pos=ur, ] \psSolid[object=point, definition=solidgetsommet, args=my_octahedron 3, linecolor=red, fontsize=20, text=D, pos=ur, ] \composeSolid \end{pspicture} \end{center} \end{document}