Mittsu – 3D Graphics Library for Ruby (github.com)

Quite handy if you've just landed a job in a somewhat unusual 24hr bookshop.

(Explanation: https://en.wikipedia.org/wiki/Mr._Penumbra%27s_24-Hour_Books... - the protagonist writes a 3D visualisation in Ruby. It's a good read.)

As an aside, mittsu (三つ) is the Japanese word for counting three things: https://en.wikipedia.org/wiki/Japanese_counter_word

You should show PNGs of the example renders, maybe APNGs / GIFs of rotation or zooming. That would make me feel like downloading it more, if it looked neat

Sorry if this is an ignorant question, but does it run in the browser?

Interesting. I started my own work on something exactly like this, before giving up after realizing how poor the Ruby opengl perfomance is / how difficult proper graphics rendering can be. Nice to see some more graphics work being done with Ruby.