There was really no friendship in modeling, though a certain amount of warmth comes from running into models you know on shoots, because you end up in so many unfamiliar places, from Alaska to Africa.

This quote is saying that models don’t typically form close friendships with one another, even though they develop a feeling of camaraderie due to their joint experiences. This camaraderie is often developed when models see each other at shoots, since they often find themselves in unfamiliar places like Alaska or Africa.