BSP Surface's lightmap resolution settings work oppositely?

Setting the light map resolution (under surface properties, lighting) to a lower number increases the resolution, and setting it to a high number decreases the light map resolution??? This can be seen by changing the view mode to light map density, and just by seeing the shadow qualities (better on surfaces with lower “lightmap resolution” number). Is this intended?

Hi Hand_of_Cthulhu,

Lightmap resolution is meant to be set lower for better shadowing. This is mentioned, albeit briefly, in the docs here: Geometry Brush Actors in Unreal Engine | Unreal Engine 5.3 Documentation

Lightmap Resolution - Essentially allows
for adjustment of the shadows across
this surface. The lower the number,
the tighter the shadows.

I’ve also mentioned this in my Lighting Tips and Troubleshooting guide here: A new, community-hosted Unreal Engine Wiki - Announcements - Epic Developer Community Forums

-Tim