[HN Gopher] Water
___________________________________________________________________
Water
Author : thunderbong
Score : 253 points
Date : 2023-08-06 20:52 UTC (2 hours ago)
(HTM) web link (oimo.io)
(TXT) w3m dump (oimo.io)
| gloryless wrote:
| Pretty cool, but it acts more like a dense gas than water. Very
| bouncy and not sticky enough
| artomultiplo wrote:
| Nice project. Keep. Pushing.
| guidedlight wrote:
| iWater?!
| CrzyLngPwd wrote:
| I left my device still and eventually I ended up with a wormhole
| of not-water spinning.
| ptrrrrrrppr wrote:
| There's too much random noise, tried to make it to stand still
| but I think its just impossible
| micw wrote:
| Looks nice but not like water. It keeps moving forever. A bucket
| of water would stand still after a few minutes.
|
| Edit: Seems to lack simulation of friction between water
| particles?
| sdwr wrote:
| Came here with the same nitpick. It settles down too slowly.
| Also takes too long to start moving after changing angle. So
| it's in this weird spot where it's both more + less reactive
| than real water.
| owlninja wrote:
| Just seems like some fun art to me, could have been named
| anything.
| nwoli wrote:
| Funnily this is usually something you need to _fix_ in water
| simulations like this one since a lot of solutions have
| artificial too rapid energy loss. So the fact that it acts this
| way is sign of more mastery rather than less (it's trivial to
| reduce energy faster).
| elwell wrote:
| Meh, I've seen better.
| layer8 wrote:
| I get the feeling it's missing an implementation of surface
| tension.
| Scubabear68 wrote:
| Wow, very cool. Works best if you lock your phone to not rotate
| views as you rotate your phone.
| raincole wrote:
| Need more damping.
| cwiz wrote:
| [flagged]
| phkahler wrote:
| My dad worked on the Apollo program In The 60s. They were using
| analog computers to simulate fuel slosh in the tanks. He also had
| a flight sim display that allegedly could go from space (earth as
| a circle?) To low level horizon and grid. I never saw either but
| am about to toss schematics for the later with the rest of his
| stuff. Personal note - he died in '03 and I'm done hanging on to
| stuff. :-)
| mietek wrote:
| You should upload them to the Internet Archive.
| jmholla wrote:
| And/or donate them to somewhere that'd be interested in
| preserving them.
| OJFord wrote:
| I don't have the domain expertise or interest to know what's
| important or rare, and I can completely understand not wanting
| to hang on to it personally any longer, but that sounds like
| something a lot of people might be interested in, that ought to
| be exhibited somewhere, if (as it sounds like) it's work-
| oriented and not too personal.
| ivan_gammel wrote:
| Looks like coordinates are inverted on my iPad (landscape mode).
| The water is falling to the higher part of the screen.
| leeoniya wrote:
| this one is much smoother: https://paveldogreat.github.io/WebGL-
| Fluid-Simulation/
|
| previously: https://news.ycombinator.com/item?id=34422948
| Waterluvian wrote:
| It also decouples frame rate from simulation speed so even if
| frames are dropped the whole thing doesn't feel sluggish.
| yakkomajuri wrote:
| Browsed around. This one is my favorite so far:
| https://oimo.io/works/cloth/
|
| Dope projects
| nektro wrote:
| crashes on firefox
| jfoutz wrote:
| this is still my favorite. https://oimo.io/works/life/ That dev
| has a bunch of cool projects.
| not-chatgpt wrote:
| The zoom out is just _chef 's kiss_
| donkeybeer wrote:
| I would like to check later on if the rules for this "cellular
| automata" (if it is one) are documented and the fractal nature
| naturally concludes from it or whether the fractal was simply
| manually forced when you zoom a certain level.
| metafunctor wrote:
| I'm pretty sure it's manually forced, but I would be
| delighted to be educated otherwise.
| justusthane wrote:
| Yeah, that's insane. (For the initiated, make sure to zoom in
| and out).
| data-ottawa wrote:
| Wow, that is so cool! I've fiddled with Conways game of life a
| lot, implementing it recursively in SQLite, various languages,
| explored variations of it; I knew you could simulate it inside
| the game, but this is mind blowingly cool! And it's so smoothly
| done, it's like stepping through the looking glass.
| thrdbndndn wrote:
| Just curious: why is it not totally symmetric, when opening in a
| desktop browser (i.e. no motion sensor)?
|
| In real world it's due to chaos but how is it "simulated" in this
| simulation?
| 420official wrote:
| They add some randomness:
| https://github.com/saharan/works/blob/main/water/src/MPM.hx#...
| mcny wrote:
| How come on the iPhone I get a prompt saying " would like to
| access motion and orientation" but not on Android?
| brucethemoose2 wrote:
| The motion doesn't even work running Bromite on Android,
| presumably because of the fingerprinting protection.
|
| Its crazy how our phones have all these sophisticated sensors,
| yet they are mostly used for something related to tracking for
| ads. So much so that I don't notice when its blocked.
| KomoD wrote:
| Are you using the same browser on both...?
| cmeacham98 wrote:
| They cannot be, because all browsers on iOS are reskinned
| Safari (due to Apple's App Store policies), and Safari is not
| on Android.
| mcny wrote:
| Good point, I was using Firefox on both but as you said
| Firefox on iOS is just Safari. To be fair to Mozilla, I am
| running Firefox nightly on Android.
| layer8 wrote:
| Chrome on Android allows it by default. You have to got to Site
| Settings to disable it. Safari on iOS prompts the user before
| allowing it.
| dotancohen wrote:
| Interesting. Sometimes pockets of not-water (vacuum?) appear in
| the middle of the liquid. Based on observation of real water,
| such cavitation would not form in water splashing around in a
| bucket.
| teamonkey wrote:
| You mean a bubble?
| andreygrehov wrote:
| Very cool!
|
| FYI: you need to run it on your phone with motion and orientation
| access provided to the app.
___________________________________________________________________
(page generated 2023-08-06 23:00 UTC)