+ OctreeNodeP insert(EntityP entity, OctreeNodeP node);
+
+ void addChild(OctreeNodeP node, int index);
+
+ void draw(Scalar alpha, OctreeNodeP node);
+ void drawIfVisible(Scalar alpha, const Frustum& frustum, OctreeNodeP node);
+
+ stlplus::ntree<OctreeNode> tree_;
+