ASCII fluid dynamics -- IOCCC2012 endoh1.c

Yusuke Endoh · 1.7M views · 2013-11-24 · 3:09

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Overview

A 3-minute demo of a tiny IOCCC 2012 winning C program that simulates fluid dynamics in an 80x25 terminal, using any text (including its own source) as input. The video shows the simulation running to Handel's Water Music.

On Hacker News

Commenters repeatedly point to it as an astonishing, beautiful piece of obfuscated-C code golf.

Recommended by 3 HN people across 3 months · HN mentions 2018–2025

Topics

Creative coding & generative art C, C++, Rust, Go & systems languages Computer graphics & rendering

What people said

6502nerdface · 2023-02 · Strong recommendation
My favorite 2D liquid simulator is this IOCCC2012 submission [1]... simply astonishing. That is the source file shown at the beginning of the video... it compiles without warnings, runs a full blown fluid dynamics sim with surface tension and everything, can take itself as its own input... truly a work of art. [1] [VIDEO]
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daptaq · 2022-10 · Strong recommendation
This was written by Yusuke Endoh, who also wrote this submission to the IOCCC that I remember being arguably more astonished when I saw it for the first time: [VIDEO] (ASCII fluid dynamics).
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yung_steezy · 2022-05 · Strong recommendation
Yusuke Endoh is a god amongst men. His C program which creates an approximation of fluid dynamics from any text input is insane - [VIDEO]
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Sources

Video by Yusuke Endoh, played through YouTube.

HN Library · Source license

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