Add documentation about bbox update not called automatically.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4140 dfc29bdd-3216-0410-991c-e03cc46cb475

include/SMesh.h

@@ -94,6 +94,7 @@ namespace scene
 		}
 
 		//! adds a MeshBuffer
+		/** The bounding box is not updated automatically. */
 		void addMeshBuffer(IMeshBuffer* buf)
 		{
 			if (buf)