The typical Chinese sources have been selling "digital hourglass" type ornaments that work like this for a while.

There was a whole game based on this sort of thing back on the Acorn Archimedes: Cataclysm https://www.youtube.com/watch?v=3Byyz1Vlv8w It got remade for the 360, but the original was regarded at the time as surprisingly impressive for the machines it was running on.

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DonHopkins 8 days ago | parent | next [-]

Wow what a cool retro fluid simulation game!

Oxygen Not Included simulates a whole bunch of different kinds of fluids and gasses, and has a sandbox mode and debug tools.

I love using it as a kidpix-like painting tool, just to see how all the different materials interact.

https://youtu.be/U0MevBWyfS8?t=295

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DonHopkins 8 days ago | parent | prev [-]

Is there a Digital Disco Ball?

	▲	bookofjoe 8 days ago \| parent \| next [-]
		https://www.amazon.com/LED-Disco-Ball-NuLights-Lighting/dp/B... https://www.youtube.com/shorts/E8rzln1gUBg
	▲	fidotron 8 days ago \| parent \| prev [-]
		You could make a bad analogue of such a thing using WLED - although as many people have observed it has a tendency of turning anything anywhere into looking like a vape shop. The problem is so much of the effect of a disco ball is irregular directional beams reflecting off it, which would be hard to do.