Oh I see the problem, I think it only works with shaders. On the comptuer at school that can't run shaders everything was pitch black. You should probably add that to OP
edit- or maybe not? my computer is on minimum actually, I wonder why the school computer didn't work?
double edit- ERMA WERD this is scary
triple edit- finished this, that was awesome. I didn't know gamemodes made that sort of thing possible, you did a fantastic job pecon