diff --git a/libs/xassets/xgfxaabbtree.cpp b/libs/xassets/xgfxaabbtree.cpp
new file mode 100644
index 0000000..a13614a
--- /dev/null
+++ b/libs/xassets/xgfxaabbtree.cpp
@@ -0,0 +1,39 @@
+#include "xgfxaabbtree.h"
+
+XGfxAabbTree::XGfxAabbTree()
+    : XAsset()
+    , mMins()
+    , mMaxs()
+    , mChildCount(0)
+    , mSurfaceCount(0)
+    , mStartSurfIndex(0)
+    , mModelIndexCount(0)
+    , mModelIndexesPtr(0)
+    , mModelIndexes()
+    , mChildrenOffset(0)
+{
+    
+}
+
+XGfxAabbTree::~XGfxAabbTree()
+{
+    
+}
+
+void XGfxAabbTree::ParseData(QDataStream *aStream)
+{
+    
+}
+
+void XGfxAabbTree::Clear()
+{
+    mMins = QVector3D();
+    mMaxs = QVector3D();
+    mChildCount = 0;
+    mSurfaceCount = 0;
+    mStartSurfIndex = 0;
+    mModelIndexCount = 0;
+    mModelIndexesPtr = 0;
+    mModelIndexes.clear();
+    mChildrenOffset = 0;
+}