Use grid-aligned pixel locaiton for calculating
opacity so each star pixel position has only one
opacity level associated with it, rather than the
multiple that can currently occupy that opacity
range.
When not pathologically near spawn, a magenta
star appears above pointing toward spawn, and
giving an indication (logarithmic magnitude) of
the distance to spawn.
Sadly I don't have a way to make fog color texture
pack customizable, so it will have to be hard-coded
for now, and TP artists may want to advise players
to just disable fog if they can, or maybe a CSM could
work...
- No day/night cycle, no sun/moon.
- Get rid of clouds too.
- Skybox is now 100% texture-packable.
- Natural light diminishes with depth.
Night-time no longer disrupts gameplay topside, but
skylights are no longer useful to an infinite depth and
artificial light is necessary for all deep mining.
