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 only generates lightmap UVs based off existing UVs. Your model needs to be UV’d and unwrapped before importing.
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.
UV maps can be contained within an obj file.
I do not know if MagicaVoxel does any sort of automated UV creation, I haven’t heard of or used the application before. You may have to use a 3d modeling program to create the UVs if you want to do baked lighting in UE4 with the model. Blender is probably your best option if you need a free 3d modeling package.
Ok, I’m semi-familiar with using Blender, I’ll import and give it a shot.