- BBTK_INPUT(VolumeRenderer,ColorFunction,"Color function",vtkPiecewiseFunction*,"");
- BBTK_INPUT(VolumeRenderer,OpacityFunction,"Opacity function",vtkPiecewiseFunction*,"");
- BBTK_INPUT(VolumeRenderer,In,"Input Image",vtkImageData *,"");
- BBTK_OUTPUT(VolumeRenderer,Out,"3D object to plug into a 3D viewer",vtkProp3D*,"");
+ BBTK_INPUT(VolumeRenderer,ColorFunction, "Color function", vtkPiecewiseFunction*,"");
+ BBTK_INPUT(VolumeRenderer,ColorFunction1, "Color function1 instead of Color function",vtkColorTransferFunction*,"");
+ BBTK_INPUT(VolumeRenderer,OpacityFunction,"Opacity function", vtkPiecewiseFunction*,"");
+ BBTK_INPUT(VolumeRenderer,In, "Input Image", vtkImageData *,"");
+
+ BBTK_OUTPUT(VolumeRenderer,Out, "3D object to plug into a 3D viewer",vtkProp3D*, "");