Questions about polygonal slope precision and setup in UDB

Mon Sep 13, 2021 5:59 pm

I'm trying to learn Ultimate Doom Builder's slope tools (in UDMF) and have made some interesting shapes already. However a simple dome still eludes me - I have managed to make shapes more complicated than domes. I'm not sure how the best way to go about that is - i.e., vertex or sidedef selection, and then which faces to select after. Right now I'm kind of blindly selecting sidedefs and sectors and hoping for the best when I engage the visual editor.

More importantly I wonder about the potential of "merging" vertices and sides. Is there some way to force sloped polygons to share sides, so that there aren't "extra" vertical polygons between slopes? This leads to weird lighting behavior and (apparently) extra polygons, like in the domes from the classic WAD "The Darkest Hour."

Finally, does coordinate precision limit my choice of DOOM port to run the map in?