Gargaune
Arcane
- Joined
- Mar 12, 2020
- Messages
- 3,559
I'd say there's a bit more to the architecture as well. Even staying out of Vegas proper, have a look at these two renditions in NV and F4NV and a vaguely similar sort of thing in Fo3:I'm only judging from the author screenshots from here (user screenshots have a bunch of mods and such) because i do not have Fallout 4 available, but from what i can see 95% of the difference seems to be because of the lighting engine :-P.
There's more detail to the design and execution in both F4NV and Fo3 (even if you ignore the arch), and it's not like that F4NV variant is something super-high-poly that couldn't be accommodated on the Fo3-gen Gamebryo. Bethesda just did a better job around those same technical constraints even if they then ruined it by drowning everything in green puke.