An experiment in augmented reality with lots of wooden tracks, an interactive living room experience for two kids. (about, faq) Last week, the project reached a stage where raw computation speed was a bottleneck. Originally, the generation of random inner loops with 16-18 track pieces took about half a minute, and connecting two open junctions with 14 pieces also needed a few minutes. Now with a
![Offloading Computation to PyPy Using CPython's... | Project Trains](https://cdn-ak-scissors.b.st-hatena.com/image/square/af7af7fd16f3452f11caa84ec8dcdf97fe322ef6/height=288;version=1;width=512/http%3A%2F%2Fmedia.tumblr.com%2Fe65d6e44ed155fae4c3e9080acc94164%2Ftumblr_inline_neplt3q8cX1shtruh.png)