diff --git a/libs/xassets/xgfxcullgroup.cpp b/libs/xassets/xgfxcullgroup.cpp
new file mode 100644
index 0000000..e2e8625
--- /dev/null
+++ b/libs/xassets/xgfxcullgroup.cpp
@@ -0,0 +1,26 @@
+#include "xgfxcullgroup.h"
+
+XGfxCullGroup::XGfxCullGroup()
+    : XAsset()
+    , mMins()
+    , mMaxs()
+    , mSurfaceCount(0)
+    , mStartSurfIndex(0)
+{
+    
+}
+
+XGfxCullGroup::~XGfxCullGroup()
+{
+    
+}
+
+void XGfxCullGroup::ParseData(QDataStream *aStream)
+{
+    
+}
+
+void XGfxCullGroup::Clear()
+{
+    
+}