There is an open-source version of GlowWorm...

code.google.com/p/pw-glowworm-source/

EDIT-I should add that the scripts are under the Source tab, and ideally you need Subversion installed to download it, although you can view the scripts in a browser...

As far as render times go,I remember it taking several seconds to merely display a peg image on a 486 machine...

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The Wisdom of bagginsbill:

"Oh - the manual says that? I have never read the manual - this must be why."
“I could buy better software, but then I'd have to be an artist and what's the point of that?"
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