To get started, you will need to download a recent version of Mitsuba. Make sure that you have the Mercurial (\url{http://mercurial.selenic.com/}) versioning system installed\footnote{On Windows, you might also want the convenient TortoiseHG shell extension (\url{http://tortoisehg.bitbucket.org/}) to run the subsequent steps directly from the Explorer.} and enter the following at the command prompt:
\item[\texttt{MTS\_SSE}]Activate optimized SSE routines. On by default.
\item[\texttt{MTS\_HAS\_COHERENT\_RT}]Include coherent ray tracing support (depends on \texttt{MTS\_SSE}). This flag is activated by default.
\item[\texttt{MTS\_DEBUG\_FP}]Generated NaNs and overflows will cause floating point exceptions, which can be caught in a debugger. This is slow and mainly meant as a debugging tool for developers. Off by default.
\item[\texttt{SPECTRUM\_SAMPLES=}$\langle ..\rangle$]This setting defines the number of spectral samples (in the 368-830 $nm$ range) that are used to render scenes. The default is 3 samples, in which case the renderer automatically turns into an RGB-based system. For high-quality spectral rendering, this should be set to 30 or higher.
To get COLLADA support, you will also need to install the \texttt{collada-dom} packages or build it from scratch. Here, we install the \code{x86\_64} binaries and development headers that can be found in the \texttt{dependencies/linux} directory\footnote{The directory also contains source packages in case these binaries don't work for you.}:
inside the Mitsuba directory. In the case that you have multiple processors, you might want to parallelize the build by appending \code{-j }\emph{core count} to the command.
If all goes well, SCons should finish successfully within a few minutes:
\begin{shell}
scons: $\texttt{done}$ building targets.
\end{shell}
To be able to run the renderer from the command line, you will also have to import it into your path:
\begin{shell}
$\text{\$}$ . setpath.sh
\end{shell}
(note the period at the beginning -- this assumes that you are using \code{bash}).
inside the Mitsuba directory. In the case that you have multiple processors, you might want to parallelize the build by appending \code{-j }\emph{core count} to the command.
If all goes well, SCons should finish successfully within a few minutes:
\begin{shell}
scons: $\texttt{done}$ building targets.
\end{shell}
To be able to run the renderer from the command line, you will also have to import it into your path:
\begin{shell}
$\text{\$}$ . setpath.sh
\end{shell}
(note the period at the beginning -- this assumes that you are using \code{bash}).
First download packer then use \texttt{makepkg} to build and install it.
The \texttt{-is} flags will prompt you for your sudo password and then install the package after it has finished building as well as install any needed dependencies.
(\url{www.python.org}) and SCons\footnote{Note that on some Windows machines, the SCons
installer generates a warning about not finding Python in the registry. In this case, you can instead run \code{python setup.py install} within the source release of SCons.} (\url{http://www.scons.org}) and ensure that they are contained in the \code{\%PATH\%} environment variable so that entering \code{scons} on the command prompt (\code{cmd.exe}) launches the build system.
Next, you will either need to compile Qt 4.7 (or a newer version) from
In the case that you have multiple processors, you might want to parallelize the build by appending the option \code{-j }\emph{core count} to the \code{scons} command.
--- make sure that you get the normal Cocoa release (i.e. \emph{not} the one based on Carbon). All of the
other dependencies are already included in precompiled form.
Now open a Terminal and run
\begin{shell}
$\text{\$}$ scons
\end{shell}
inside the Mitsuba directory. In the case that you have multiple processors, you might want to parallelize the build by appending \code{-j }\emph{core count} to the command.
If all goes well, SCons should finish successfully within a few minutes:
\begin{shell}
scons: $\texttt{done}$ building targets.
\end{shell}
To be able to run the renderer from the command line, you will have to import it into your path:
\begin{shell}
$\text{\$}$ . setpath.sh
\end{shell}
(note the period at the beginning -- this assumes that you are using \code{bash}).
