diff --git a/.gitmodules b/.gitmodules
index 5bba81e..3f0bc17 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -16,3 +16,6 @@
 [submodule "TexConv"]
 	path = TexConv
 	url = https://hyzboy@bitbucket.org/cm_dev/cmtexconv.git
+[submodule "CM2D"]
+	path = CM2D
+	url = https://github.com/hyzboy/CM2D.git
diff --git a/CM2D b/CM2D
new file mode 160000
index 0000000..af73eb9
--- /dev/null
+++ b/CM2D
@@ -0,0 +1 @@
+Subproject commit af73eb90f5387ab374df4a25bb07f96af76d0c80