Adding lighting effect without changing global sun?
I am working on a map in which a statue is holding an object that is glowing. Elsewhere in the room there's a candle partly in a wall's shadow. Is there a way to add a lighting effect that is in addition to, rather than instead of, the global sun?
I've watched and rewatched Remy's Night & Day video of July 2020, and Ralf's Dungeon Lights video of a few months ago, but I still haven't figured it out. I might be missing something obvious. When I tried adding a lighting effect, everything was plunged into blackness because it overrode the global sun. In another thread, Sue said that the parts of the map not affected by the lighting effect should be on sheets that are below the sheet where the lighting ends, but I'm hoping to avoid that since it would entail a massive revamp of the map. Also, that may not be the same issue for me, because I'm not trying to have dark areas and daylight areas, just extra lighting that is in addition to the daylight.
I tried an alternate approach by putting a yellow circular polygon on the object and using transparencies and glows to make it simulate a light, but that doesn't affect nearby wall shadows, and I couldn't get the glow and transparency settings to look good. I'm okay with it not affecting wall shadows if I can at least make it look like it's glowing. If the yellow polygon approach is the best, can anyone recommend some good settings for transparency/glow/edge fade/blur/etc. effects?