I don't know if this is possible but for absolute realism when it is dark you see more (like your eyes adjust) so why not make the whole game brighter (to a degree) so you can at least see, and darker during night. So say for example there is a block on a map that is 10 lux (illumination, lets say lamp), during the day it is not very bright, but at night it is really bright (like brightest your display can do). That is quite a bad example, but yeah if it makes sense then good for u Another one... So you are driving at night, you drive from streetlit areas to countryside so it is now dark, then gradually your eyes adjust and so the outside is brighter, but also the instrument panels are brighter too, as your eyes have become more sensitive to the light