I used no light emitting objects here, but the presence of point lights very close to walls and ceilings effectively created large "glowing" surfaces. So there is generally smooth lighting (secondary lighting) as well as the primary lighting.

Render time was 4 hours 24 minutes.

Pixel Samples (PS) = 6

Min Shading Rate (MSR) = .8

Bounces=4

Samples=5000

IC=80

Filter = Sinc 3

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)