Index: trunk/Mars/msimreflector/MOptics.h
===================================================================
--- trunk/Mars/msimreflector/MOptics.h	(revision 19586)
+++ trunk/Mars/msimreflector/MOptics.h	(revision 19587)
@@ -17,5 +17,5 @@
     virtual Bool_t CanHit(const MQuaternion &p) const = 0;
 
-    virtual Int_t ExecuteOptics(MQuaternion &p, MQuaternion &u) const = 0;
+    virtual Int_t ExecuteOptics(MQuaternion &p, MQuaternion &u, const Short_t &wavelength) const = 0;
 
     virtual Bool_t IsValid() const = 0;