\documentclass{article} \usepackage{pst-solides3d} \begin{document} \pagestyle{empty} \begin{pspicture}(-5,-4)(3,3) \psset{lightsrc=50 50 50,viewpoint=40 50 60,Decran=30,unit=0.85} \psframe(-5,-4)(3,3) \codejps{ /anneau1 {1 7 [12 36] newtore {0 0 0 translatepoint3d} solidtransform dup (White) outputcolors} def /anneau2 {1 7 [12 36] newtore {90 0 0 rotateOpoint3d} solidtransform {7 0 0 translatepoint3d} solidtransform dup (White) outputcolors} def /collier {anneau1 anneau2 solidfuz} def collier drawsolid**} \end{pspicture} \end {document}