My personal opinion: I like Firefly a lot for its artistic functions, but it takes far to much time and effort (and dedicated skills etc) to bring it close enough to quasi photo real / PBR like results. That's it, have fun !

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Usually I'm wrong. But to be effective and efficient, I don't need to be correct or accurate.

visit www.aRtBeeWeb.nl (works) or Missing Manuals (tutorials & reviews) - both need an update though