diff --git a/libs/xassets/xgfxbrushmodelwritable.cpp b/libs/xassets/xgfxbrushmodelwritable.cpp
new file mode 100644
index 0000000..95bb1e5
--- /dev/null
+++ b/libs/xassets/xgfxbrushmodelwritable.cpp
@@ -0,0 +1,24 @@
+#include "xgfxbrushmodelwritable.h"
+
+XGfxBrushModelWritable::XGfxBrushModelWritable()
+    : XAsset()
+    , mMins()
+    , mMaxs()
+{
+    
+}
+
+XGfxBrushModelWritable::~XGfxBrushModelWritable()
+{
+    
+}
+
+void XGfxBrushModelWritable::ParseData(QDataStream *aStream)
+{
+    
+}
+
+void XGfxBrushModelWritable::Clear()
+{
+    
+}