Update on Overleaf.

handout/diagrams/geometry_term_diff.tex

@@ -1,7 +1,7 @@
 \begin{center}
     \begin{minipage}{0.4\linewidth}
         \begin{figure}
-            \centering
+        \centering
             \begin{minipage}{0.5\linewidth}
                 \begin{tikzpicture}[domain=-0.5:2]
                     \draw[very thin,color=gray] (-0.1,-0.6) grid (2.1,2.1);
@@ -26,7 +26,7 @@
     % second diagram
     \begin{minipage}{0.5\linewidth}
         \begin{figure}
-            \centering
+        \centering
             \begin{minipage}{0.5\linewidth}
                 \begin{tikzpicture}[domain=-0.5:2]
                     \draw[very thin,color=gray] (-0.1,-0.6) grid (2.1,2.1);

handout/handout.tex

@@ -83,6 +83,13 @@ The geometry term $g(x,x^\prime)$ in equation \ref{eq:rendering_integral} is the
     \label{fig:occlusion_rays}
 \end{figure}
 As illustrated in figure \ref{fig:occlusion_rays} an infinitesimal angle change $d\omega$ can lead to the blocker obstructing the wall or the wall being visible. The geometry term is thus a Heaviside step function which when differentiated yields a dirac delta functional.
+
+\begin{figure}
+    \include{handout/diagrams/geometry_term_diff}
+    \caption{Caption}
+    \label{fig:enter-label}
+\end{figure}
+
 % BIBLIOGRAPHY
 \nocite{*} % List all entries of the .bib file, even those not cited in the main body
 \printbibliography