A DOS-based graphics demo (in VGA 320 by 200 mode) that uses relatively simple
dynamics for simulating the behavior of a "sand picture" (consisting of
different types of sand and some water, kept between two pieces of glass),
generating a continously moving display. This would be a good thing to turn
into a screensaver, but I never got around...
While a real sand picture has to be turned around whenever the sand settles down, this simulation simply reverses the force of gravity to change roles between "grains" and "bubbles". This can be forced at any time by hitting the Space bar.
C source code is included.
Please note that the entire documentation is in German language only.