\section{Removing faces}

The key value \texttt{\Lkeyword{rm}=1 2 8} allows to suppress the drawing of the
faces with the index numbers 1, 2 and 8, to be able to have a look inside a \Index{hollow} solid.

\begin{LTXexample}[width=5cm]
\psset{Decran=12,grid=true,viewpoint=15 10 15}
\begin{pspicture}(-2.5,-2.5)(2.5,2.5)
\psSolid[object=cylindrecreux,
    ngrid=2 6,
    h=6,r=2,
    fillcolor=green!60,
    incolor=yellow!50,
    RotZ=-60,
    rm=1 3 6,](0,0,-3)
\end{pspicture}
\end{LTXexample}

\begin{LTXexample}[width=5cm]
\psset{Decran=12,grid=true,viewpoint=15 10 15}
\begin{pspicture}(-2.5,-2.5)(2.5,2.5)
\psSolid[object=troncconecreux,
    rm=1 12 13 14,
    r0=3,r1=1,h=6,
    fillcolor=green!60,
    incolor=yellow,
    mode=3](0,0,-3)
\end{pspicture}
\end{LTXexample}


\endinput