VTK -> image file without window.

[Matt Howlett]

Hi vtk users,

I've been using vtk for volume rendering, which for large datasets is
either not real time or is at a very poor resolution. I would like to be
able to render directly to an array (without opening a window) so that I
can write an MPI program to run on multiple computers each calculating
from a different camera pos. Before delving into the source code and
trying to hack up a RenderWindow to do the job (i'm assuming this is what
I should do...), I was wondering if anyone else had solved this problem
(of volume rendering to an array).

My ultimate plan is to explore the data at a very poor resolution, then do
a multi node render of each frame in the exploration at a high resolution,
then play back the movie. 

Thanks in advance,

Matt Howlett,
Swinburne University of Technology,
Melbourne,
Australia.

---

"When you find yourself on the side of majority, it is time to reform"
	- Mark Twain



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