Getting a bit closer. Still not quite sufficient texture detail. On this one, my Mean_Free_Path setting was 3. Will probably knock it down to about 2.25 and see what happens. I suspect a lot of the strangeness is due to artifacts from my low quality test render settings.

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Hardware: AMD Ryzen 9 3900X/MSI MAG570 Tomahawk X570/Zotac Geforce GTX 1650 Super 4GB/32GB OLOy RAM

Software: Windows 10 Professional/Poser Pro 11/Photoshop/Postworkshop 3