[Rayearth]

Even with the asset stores, have UE or Unity reached the point of being a "one stop shop"? It still seems like an art tool like Blender or Maya is also a required link in the toolchain for anything but the smallest of projects.

[TrevorJ]

By and large you do need to use another tool for generating the art assets. That's probably by design because a single program that could do it all would be pretty monolithic and probably couldn't be great at everything. UE4 uses some pretty industry standard file formats for importing assets though, so it should work pretty well no matter what tool you prefer to use to create your assets.