wimvdb posted at 1:24PM Mon, 09 August 2021 - #4424823

Branched and non-branched path renders use a different approach and they also treat materials differently. Blender - Branched path tracing explained shows the difference between the two and what influence the sample and bounce settings have on each.

Thank you Wim. Yes, this does partially illustrate (if not explain) why the lighting is different, but in no way helps me in determining a conversion formula, leaving me simply to eyeball it. Worse still, his approach of test rendering EVERY SINGLE SCENE with multiple settings is ridiculously impractical, AND Poser does not allow you to separate out the channels to see the impact in detail like Blender does. But thank you anyway.