Hi all! I came across an Issue on my Daredevil Scene where I'm getting dark shadow lines on the places where my walls and other modular assets connect. I did use a lot of vertex snapping and boosted my indirect light intensity from 1 to 4 as well as tried adjusting the lightmap resolution, but the end result still gives me lines.
One thing I've seen some artists do is have their lightmap UVs snapped to the grid in the 0-1 space of whichever 3d software they UV with. I'm wondering if that's a necessary step or if Unreal would be able to figure out the lightmap just by having a lightmap Uv set without any different from the original UV set?
Lightmaps did help (the UE4 image is the updated image after handmade Lightmaps in Maya), but not eliminate my issue entirely. And as a test, I tried just creating an empty Uv set and baked. That didn't make a difference. Neither did trying UE's auto-generate Light map Uvs. Not sure If it's because I don't have sufficient padding between my UVs?
I thought that maybe production quality bakes would help, but that didn't help either. The video I saw, the artist was able to snap individual verts and edges to the grid. In Maya though, If you select an edge or vert, it'll select the corresponding edge/vert if there is one. I've been trying to find a way to disable that double selection feature, but haven't found anything either, granted, he was using Maya 2015.
Any thoughts on this would be appreciated!