I imported custom models I made with MagicaVoxel, but even with “Auto Generate UVs” on for the import, after baking lighting the become completely black. In that mesh editor when I click on the “UV” tab nothing comes up at all and after trying to generate them again and again with different settings, nothing ever changes. Only UV channel 0 ever shows up.
ue4’s auto generate lightmap uv’s only work when there is already a proper unwrapped uv-map available to read from and rearrange the already existing uv’s.
It cannot unwrap the mesh for you.
Additionally, make sure that the lightmap size is set correctly.
How would I get an unwrapped uv-map? When exporting with MagicaVoxel it only contains the .obj file and a .png of the texture pallet.
no experience with magicavoxel, id import the file into blender or another 3d program and see if there is a uv-map, and if there is if there are no flipped normals or overlapping ones. or create a new uv-map for lightmap.
Ok, thanks I’ll try importing it to Blender.