So, this may be the wrong forum/thread, hopefully I won't get too badly roasted for posting this here, but... I was thinking this afternoon while semi-conscious about an implementation for a moving wave front of fog in Civ 4 (for things like.. the creeping fog of death or radiation clouds). I've been contemplating coding it up, but I'd need some sort of fog "unit". Either a feature (probably best), or possibly a unit of some sort. Has anyone made a ground hugging fog unit/feature? If not, anyone feel like whipping one together for me? Seems like I've seen some effects that could be co-opted to make such a thing fairly easily. That is, for someone.. you know.. a little less graphically challenged then myself 
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