[vtkusers] parallel volume rendering

[邓自强]

hi all,
I want to write a volume rendering program with VTK and MPI(that is, I have several medical image slices, which make up the volume, and I want to render the volume on a cluster ), I read some materials but still don't know how to begin with, could here anyone give some specific help? 
like if (    myid == 0    )//master
    {
    ...
    }else{//slaves
    ...
    }
and explain 1.how does the partition go,2. how to get rendering results and do the gather up and interaction. thanks very much!
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