I am working on a perl script that enables me to break up large still
renders into multiple small strips which are shot off to different servers
(or the same server on multi CPU systems) for rendering and then
reassembled after they are all finished.

Naturally this works quite well without antialiasing or radiosity.

So far I've managed to solve the problem of antialiasing artifacts by
rendering the 'strips' with extra pixels on the sides, then cropping these
strips before the final reassembly.  This works quite well and my test
image (1280x1024, 16 strips, antialiasing  +A0.001 +R10) reassembles
flawlessly.

I decided to solve the problem of radiosity by using the load_file,
save_file radiosity block options, and always_sample turned to off (a fair
compromise).  I would then use the radiosity map generated by this stage
when rendering the individual strips.

My question is, how do I get POVRay to exit once it has generated the
radiosity map?  Currently it generates the radiosity information and then
goes on to render the image in it's entirety!  Obviously this defeats the
purpose of what I'm trying to achieve.

Any ideas?

Regards,

-peter

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