How do you get grey fog in x9:
http://forum.thegamecreators.com/?m=forum_view&t=180778&b=21
zonescript:
;Artificial Intelligence Script
;Header
desc = White Fog on
;Triggers
:state=0:fog=1,fogred=255,foggreen=255,fogblue=255,state=0
;End of Script
as you describe it, you have to setup your skybox with a white/grey band on groundheight so it has the same heavyness as the lastseen objects. means when you work with white fog, you need a white background when you want the objects to dissappear.
setting fog to 50/50/50 and also backgrounds leads to a "darker" fog on darker back. main thing is that the back has to be the same color as the fog to make things dissappear.