diff --git a/AmpScan/AmpScanGUI.py b/AmpScan/AmpScanGUI.py
index f40139d3e996ef4af187f9ac19f4a42c8414751a..38b6f52a307d2e8c9064a4b26c4175d1b5eac129 100644
--- a/AmpScan/AmpScanGUI.py
+++ b/AmpScan/AmpScanGUI.py
@@ -91,7 +91,7 @@ class AmpScanGUI(QMainWindow):
         self.AmpObj.lp_smooth('FE', n=1)
         self.AmpObj.addActor(stype='FE', CMap=self.AmpObj.CMap02P, bands=5)
         self.AmpObj.actors['FE'].setScalarRange(smin=0.0, smax=50)
-        self.vtkWidget.renderActors(self.AmpObj.actors, ['FE',])
+        self.vtkWidget.renderActors(self.AmpObj.actors, ['FE',], shading=True)
         self.vtkWidget.setScalarBar(self.AmpObj.actors['FE'])
         
     def choosePress(self):
diff --git a/AmpScan/ampVis.py b/AmpScan/ampVis.py
index b29f67c724a672ded8fcf2160ab6c6474a09daea..57d38daf1acc454983058196cfedf6ae4a097784 100644
--- a/AmpScan/ampVis.py
+++ b/AmpScan/ampVis.py
@@ -267,6 +267,7 @@ class visMixin(object):
                 self.setRect(data['values'])
                 self.setCMap(CMap, bands)
             self.Mapper = vtk.vtkPolyDataMapper()
+            self.Mapper.InterpolateScalarsBeforeMappingOn()
             self.Mapper.SetInputData(self.mesh)
             if CMap is not None:
                 self.setScalarRange()