> If you have a lot of time and a ton of RAM to burn, you can try dropping
> error-bound to some absurdly small figure (.03 or thereabouts). You'll
> still have artifacts, but with any luck (and a bit of tweaking to find
> the right numbers) they'll be so small that you won't be able to see them.

My experience has been that in scenes with pure radiosity lowering
error_bound does more harm than good. Usually you get thousands of
artefacts, like there are hundreds of light sources casting hundreds of
shadows or something. You can't go below about 0.4 before the scene becomes
unsaveable.

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