Guessing this article is referring to deprecated features?
Another old thread on same topic.
https://forums.unrealengine.com/development-discussion/architectural-and-design-visualization/62129-baselightmass-ini-a-summary-from-various-posts
In particular I noticed the increase in quality achieved by reducing Static Lightning Level Scale 1 and increasing NumHemisphereSample values.
But where is BaseLightMass.ini in 4.25, 4.26?
If I reduce Static Lightning Level Scale in 4.25-4.26 is there any other setting I need to change to reduce artifacts?
Any feedback appreciated.