diff --git a/.gitmodules b/.gitmodules
index 51c2db9..c858628 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "3-modeling/c++/deps/polyscope"]
 	path = 3-modeling/c++/deps/polyscope
 	url = https://github.com/nmwsharp/polyscope.git
+[submodule "3-Modeling/c++/deps/geometry-central"]
+	path = 3-Modeling/c++/deps/geometry-central
+	url = https://github.com/nmwsharp/geometry-central.git
diff --git a/3-modeling/c++/deps/geometry-central b/3-modeling/c++/deps/geometry-central
new file mode 160000
index 0000000..d6a6027
--- /dev/null
+++ b/3-modeling/c++/deps/geometry-central
@@ -0,0 +1 @@
+Subproject commit d6a60271786945740ad14a0d674bab49a9c61a20