\newpage \subsection{Emitters} \label{sec:emitters} Mitsuba supports a wide range of emitters/light sources, which can be classified into two main categories: emitters which are located somewhere within the scene, and emitters that \emph{surround} the scene to simulate a distant environment. An overview of the available types is shown below: \begin{figure}[h!] \centering \includegraphics[width=15.5cm]{images/emitter_overview.pdf} \caption{ Schematic overview of the most important emitters in Mitsuba. The arrows indicate the directional distribution of light. } \end{figure}