improve smoothing

src/mesh_processor.h

@@ -34,7 +34,8 @@ public slots:
 	void fillHolesImplicit();
 	void setImplicitHoleFillingScale(float scale);
 	void setImplicitHoleFillingDiscr(float discr);
-	void smooth();
+	void smoothCotangent(double factor);
+	void smoothUniform();
 	void setPatchView(bool on);
 	void click(QVector3D position);
 };