okay.

As far as Reality/Lux is concerned, I've found (and reported) problems with the Pure = GPU-only mode, in my dual-nVidea-GPU setup at least. Paolo is looking into it.

a) the GPU enabling/disabling does not work properly / as expected. Seems a Reality-issue to me. 

b) a not-too-basic scene will experience the ram requirements going through the roof. In Normal and Hybrid the scene runs fine. A Lux issue.

Also I've found that the Hybrid = GPU + CPU mode runs slower and provides less quality, compared to the Normal = CPU-only mode.

So as far as I'm concerned, I'm not using my GPU's for Lux at the moment. Might be nVidia only, don't know.

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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