Note: this is my first post on any forum so please keep that in mind
Some of these thing might sound way too realistic but this is just my opinion
Day-Night cycle:
- skylight tempreature should change based on time of the day (this will make sunrise and sunset a lot better looking
Water:
- should have surface refraction and reflection
- underwater environment will get darker if you swim too deep
Fog:
- volumetric fog (only if it can be disabled, because of it’s high performance impact)
- any type of light (including lasers) should create a visible light paths if it’s in a foggy area
glass
- this part includes any type of glass from Windows to sights
- should have refraction (you can only notice it when looking from a bad angle or when the glass is very thick, also this does not affect scopes)
- glass also needs to be somewhat reflective
I might add some things later but this is just a quick post (I haven’t even created any example pictures)