[Paraview] Rendering Multiple files once

[Arshpreet Singh]

I am trying to read multiple files and save in PNG format, but I am
getting lot of errors.

My code is here: http://pastebin.com/jGyapMwe

I want to "render and save" all the vts files present in list into png files.

If I need to create parallel processing pipelines please let me know
where I have to look, Is there any example-code available for reading
and rendering multiple files together?

-- 

Thanks
Arshpreet Singh

I am Sikh boy, Learning by doing and Learning by teaching is my religion.
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