diff --git a/noise/fractal/rmf.hpp b/noise/fractal/rmf.hpp
index 1ca98626..496ba92a 100644
--- a/noise/fractal/rmf.hpp
+++ b/noise/fractal/rmf.hpp
@@ -57,6 +57,9 @@ namespace util { namespace noise { namespace fractal {
 
         T operator() (util::point<2,T>) const;
 
+        T offset (void) const;
+        T offset (T);
+
     private:
         T m_offset;
     };
diff --git a/noise/fractal/rmf.ipp b/noise/fractal/rmf.ipp
index ee1890e4..99d24c8f 100644
--- a/noise/fractal/rmf.ipp
+++ b/noise/fractal/rmf.ipp
@@ -98,4 +98,22 @@ namespace util { namespace noise { namespace fractal {
 
         return result;
     }
+
+
+    ///////////////////////////////////////////////////////////////////////////
+    template <typename T, typename B>
+    T
+    rmf<T,B>::offset (void) const
+    {
+        return m_offset;
+    }
+
+
+    //-------------------------------------------------------------------------
+    template <typename T, typename B>
+    T
+    rmf<T,B>::offset (T _offset)
+    {
+        return m_offset = _offset;
+    }
 } } }