[vtkusers] How can I use vtk to tackle a large field data set of 7.2G?

[platogao]

I have to visualize a Industrial CT data set under Windows2000: each slice is 6000*6000*2 byte, at list 100 slices. That is: the data quantity is at least 7.2G !!! 
I want to use surface rendering algorithms. It's sure that vtkMarchingCubes or other ordinary filters cannot serve this purpose. All the data cannot be loaded to RAM at one time, for the memory limitation of windows program is 4G.

How can I sovle this problem?
Is vtk a ideal solution for this goal?
Should I use OpenGL to program from the very beginning if vtk is not possible?

Please help me.Any of your advise is highly appriciated.

Plato Gao
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