Are you sure it's a bug? Please show us your renders and lighting / shadowing settings.

And / or ... you might like to open a new thread to prevent hijacking this one and having two topics crossing posts.

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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