diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..6491ee4
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,4 @@
+[submodule "imgui"]
+	path = imgui
+	url = https://github.com/ocornut/imgui.git
+	branch = docking
diff --git a/imgui b/imgui
new file mode 160000
index 0000000..8326dab
--- /dev/null
+++ b/imgui
@@ -0,0 +1 @@
+Subproject commit 8326dabe5e74a06cbd0adaf2b140c628bd5694c3