Fish eye lens experiment

[torstan]

That's looking really good. One small fix - the length of the shadow for each building should be the same from the base of that building to the farthest point of the shadow (assuming all the building are the same height). Currently the shadows are the same distance from the top of the building. Basically what I'm saying is that you'll see less shadow for the buildings to the top left as the buildings themselves are blocking your line of sight to the shadows. Not sure how to incorporate that into your method, but it should give you something to think about over dinner

[Ascension]

Good point, hadn't thought about that but I know exactly what you mean. I put almost no effort into this, total of about 15 minutes, so I'm sure it looks off and wonky and rather crap. I was just interested in finding the basic method for a modern city that I'm planning. I was so happy at finding an answer that I just blew through the shadowing. I think I've got a fix though (distort - spherize for use on the upper left and reverse it for the lower right). Now to figure out how to get the shadows onto the sides of skyscrapers with some sort of displacement map.