\section{Running \RAY}
\index{running}
  Since \RAY\ runs on a wide variety of platforms, the exact commands
required to run it vary substantially.  The easiest way to get started
using \RAY\ is to try running one of the non-parallel, uniprocessor
versions first.  

\index{command line parameters}
\subsection{Command line parameters}
\begin{itemize}
\item{-fullshade} this option enables the highest quality rendering mode
\end{itemize}

\subsection{Tips for running MPI versions}
\index{running with MPI}

