I first encountered LSystems during university; this was in the mid-90s when fractals were becoming mainstream. However, it was only in 2009/2010, when I needed a toy problem to learn Scala and JAX-RS with, that I started writing renderers.

The

I am an occasional photographer and I became interested in how compositional techniques could help me produce better pictures. I've been using the rule of thirds, not least because my camera has an easy to use overlay for it. However, what

Go to any local attraction and you'll see people taking selfies with statues, towers, all sorts of sights. Once, walking past tourists taking pictures of Greyfriars Bobby in Edinburgh, I reckoned that some of those will be posted on Twitter. I should be able to find these, and similar pictures, automatically. How difficult could it be?

Problem: Porn.