Playing with the cloud functions I came to build a nuke. Not with the functions though, but with a pile of simple shapes. It's basically one cloud (except the low dust wave coming at you). The problem is to get the clouds into the sharp billows, I haven't managed that yet. Took a long time, a lot of samples were needed, the cloud is 2200m high. I've never built these sharp bulbous clouds, so I don't know the best settings. And the cloud must be gray I'd think. Anyway, here's a first try.