+
+
+
+
+ //define range of values
+ vtkPiecewiseFunction *opacityTransferFunction = vtkPiecewiseFunction::New();
+ opacityTransferFunction->AddPoint( 0 , 0.0/100.0 );
+// opacityTransferFunction->AddPoint( 85 , 2.0/100.0 );
+// opacityTransferFunction->AddPoint( 160 , 25.0/100.0 );
+// opacityTransferFunction->AddPoint( 210 , 50.0/100.0 );
+ opacityTransferFunction->AddPoint( 255 , 90.0/100.0 );
+
+
+ //Create a transfer function mapping scalar value to color (grey)
+ vtkPiecewiseFunction *grayTransferFunction = vtkPiecewiseFunction::New();
+ grayTransferFunction->AddSegment( 0 , 0.0 , 255 , 1.0 );
+
+ // Create a set of properties for mip
+ vtkVolumeProperty *mipProperty;
+ mipProperty = vtkVolumeProperty::New();
+ mipProperty->SetScalarOpacity( opacityTransferFunction );
+ mipProperty->SetColor( grayTransferFunction );
+
+// mipProperty->SetInterpolationTypeToLinear();
+ mipProperty->SetInterpolationTypeToNearest();
+
+// mipProperty->ShadeOff();
+ mipProperty->ShadeOn();
+
+ mipProperty->SetAmbient(0.9);
+ mipProperty->SetDiffuse(0.9);
+ mipProperty->SetSpecular(0.9);
+
+