Are there any addons for unity that allow this? So similar to the terrain painting but are able to paint onto imported 3d models. So I guess similar to applying decals.
I’ve seen some editor scripts on the asset store, you might check some of them.
If you don’t need to make a complex painting it might be easy to make it yourself with SetPixels help, especially if you need to do that not at runtime.
I create large scale dungeons and I love adding small details all around but unwrapping giant structures really limits you on the object texture details unless it’s a tiled texture, which the tile texture would be the base but I would like to add lots of random details. I don’t think it’s possible with decals because of the weird shapes some structures have. If you look at games like the newer Zelda games the areas are very large scale models with lots of details everywhere.