[vtkusers] vtk + volume rendering app

[Emil Kasulzke]

Hi all,

I am currently evaluating VTK for use in a volume rendering app.
Can anyone tell me his experiences with vr and vtk?
How fast is the vtk volume ray tracer for datasets of about 256^3?
Is there an implementation of the shear-warp algorithm for vtk (I didn't 
  find it in the sources)?
Does anyone know of a freely available volume rendering program based on 
vtk (preferably small and with source - just to get an idea of how 
things are done)? I had a look at the vr examples and was quite amazed 
by the LOD features, but the examples are just too simple.

Thanks in advance,

Emil