Mittsu – 3D Graphics Library for Ruby (opens in new tab)

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

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.)

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.