[vtkusers] VolumePro problem

[Stephan Theisen]

Hi together!

I've the following problem. I've developed my whole program in java and 
it works realy fine.
But when I change the vtkVolumeRayCastMapper (within the program works) 
into the
vtkVolumeProVPMapper, to get VolumePro support, I get no error during 
compilation but
the window there the rendered volume should be displayed is black. I've 
tryed a lot of things
but nothing works. Before I used the vtkVolumeProVPMapper I rebuilt VTK 
within the folders
for the vli library and so on. After that I included the new vtk.jar 
file in the classpath of my java sdk.
I send you the important part of my program and hope anybody can help me.

vtkPiecewiseFunction opacityTransferFunction =
new vtkPiecewiseFunction();
opacityTransferFunction.AddPoint(1000,0.0); 
opacityTransferFunction.AddPoint(1150,1.0);

vtkColorTransferFunction colorTransferFunction =
new vtkColorTransferFunction();  
colorTransferFunction.AddRGBPoint(1150,0.8,0.8,0.15);

vtkVolumeProperty volumeprop = new vtkVolumeProperty();
volumeprop.SetColor(colorTransferFunction);
volumeprop.SetScalarOpacity(opacityTransferFunction);
volumeprop.ShadeOn();
volumeprop.SetInterpolationTypeToLinear();

vtkVolumeRayCastCompositeFunction compositefunction =
new vtkVolumeRayCastCompositeFunction();
// vtkVolumeRayCastMapper volumemapper = new vtkVolumeRayCastMapper();
vtkVolumeProMapper volumemapper = new vtkVolumeproMapper();   
//volumemapper.SetVolumeRayCastFunction(compositefunction);
volumemapper.SetInput(voi.GetOutput());
 
vtkVolume volume = new vtkVolume();
volume.SetMapper(volumemapper);
volume.SetProperty(volumeprop);

renWin.GetRenderer().AddVolume(volume);

contentPane = new Layout(renWin);
setContentPane(contentPane);

Thanks in advance

Stephan