Index: graf3d/gl/inc/TGLParametric.h
===================================================================
--- graf3d/gl/inc/TGLParametric.h	(revision 42013)
+++ graf3d/gl/inc/TGLParametric.h	(working copy)
@@ -46,7 +46,6 @@
    Ptr_t                fZEquation;
 
    ParametricEquation_t fEquation;
-
    Rgl::Range_t         fURange;
    Rgl::Range_t         fVRange;
 
@@ -65,6 +64,9 @@
                  Double_t vMin, Double_t vMax);
    TGLParametricEquation(const TString &name, ParametricEquation_t equation,
                  Double_t uMin, Double_t uMax, Double_t vMin, Double_t vMax);
+   TGLParametricEquation(const TString &name, ParametricEquation_t equation,
+			 void(*ColorFunc)(Double_t &color,Double_t u, Double_t v),
+			 Double_t uMin, Double_t uMax, Double_t vMin, Double_t vMax);
 
    Rgl::Range_t GetURange()const;
    Rgl::Range_t GetVRange()const;
@@ -81,6 +83,7 @@
    void         ExecuteEvent(Int_t event, Int_t px, Int_t py);
    char        *GetObjectInfo(Int_t px, Int_t py) const;
    void         Paint(Option_t *option);
+   void (*GetColor)(Double_t &color,Double_t u, Double_t v);
 
 private:
 
@@ -111,6 +114,7 @@
 public:
    TGLParametricPlot(TGLParametricEquation *equation, TGLPlotCamera *camera);
 
+
    Bool_t   InitGeometry();
    void     StartPan(Int_t px, Int_t py);
    void     Pan(Int_t px, Int_t py);