This is an automatic generator of café façades. It hasn't been refined yet, so the results are often not good. But you can throw away all the bad ones until you find a good one: they are cheap!

The program is actually throwing away many thousands of façades as you move your mouse, in order to meet certain criteria. The program applies the criteria in a sequence, from the broadest to finest.

Since it is just a linear program, it has to throw away and backtrack in order to meet criteria at each step. A person can find these fits more easily, because the brain is massively parallel, and not throw away as much.