[vtkusers] change contrast in volume object (it's too dark)

[powerhouseofexcellence]

Hi all,
 I have the VTK users guide book (version 4.4) and was reading to see how to 
edit the diffuse/ambient etc to make my volumes look brighter (problem from 
an earlier post). But I'm doing a MIP, and the book says that these 
parameters and the ShadingOn() are ignored by MIP rendering. So my MIP still 
looks dark, any way to increase their brightness? I am using the scalar 
value as the maximize function.
 I was hoping that since the volume data is being passed to the render 
window somewhere, maybe there would be a chance to set the output of the 
volume renderer into a window level filter which is then passed along to the 
render window. So only the final output is window/leveled and this could be 
a quick operation. Is this possible?
 Thanks
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