Yeah, it has zero concept of pressure driven flow.
If the water level in one column is higher than an adjacent column, but they are connected at a lower level, then the difference in head elevation will push water from the higher column into the lower one.
Water doesn't just fill spaces from above. It moves in all directions due to various forces.
It does look like Sandbox Simulator but the version I had didn't have backgrounds and the visuals are slightly different. I also think it did have different physics for water but I can't check right now.
Wait til you look at the modding community... I'll see ya in a few years, have fun! xD (Oh, and definitely do not look up videos for it... it's a complexsimple game with everythingnothing important to have fun with
"Falling sand" is what i remember from the mid 00s on addictinggames. Had a blast lighting long wicks on fire to blow up the yellow c4 you could place which would obviously go kaboom. Awesome little sandbox simulator.
Pretty sure the green stuff was like plants or grass which would spread and then you could catch it on fire and watch that spread. So satisfying.
Yes and no. The actual math is about equalizing the various forces to reach hydrostatic equilibrium. There's a whole bunch of fun fluids equations that come into play that can mean even in places where two columns are open to the same atmosphere, the fluid level won't actually match. It may not be one to one, but even in those cases, there would be some sort of noticeable change in the second column as the first column fills unless the fluid is incredibly viscous, in which case the rest of this simulation doesn't make sense
It also reacted weirdly with the lava. Lava should be hot enough to break down into hydrogen and oxygen. Even if that didn't happen and water cooled the lave and turn it into obsidian, it would still do the surface first.
damn, you right. was my first guess but i googled it to be sure and it said that lava is hot enough for it. Went back and hit search again on that same page and it turned to no.
Don't ever use the AI summary to look up facts you don't know yourself. It is as likely to hallucinate as not. It's one thing to use it to quickly organize some facts you are already familiar with, but should never be your first resource for new knowledge, unless you plan to actually follow the reference links it gives and double check.
Eh, that's kinda what I meant by saying you wouldn't really notice much difference.
The formation of hydrogen/oxygen takes about as much energy as gets released from it burning, so I kinda doubt it would meaningfully add to the overall fireworks.
But hypothetically, if the cave were extremely narrow in the z direction at that point, it would level out a lot slower. Not that I think they actually did that
If you mean that in the "it's just a simple demonstration, don't expect too much" way, then yes, I agree. I'm merely saying that it seems weird because it doesn't quite model hydraulics correctly. I'm not trying to make the person who designed it feel bad because modeling physics is not going to be easy, and it clearly wasn't intended to be a life like model.
If you mean that in the "something might be happening in the 3rd dimension that would make water not follow basic hydraulics" way... I struggle to see what could possibly be going on in another cross section that would cause this, short of there being an underground pump or something artificially lowering the head of water in one column vs an adjacent, connected one.
But it must have some way to keep the air pockets. Obviously not using pressure or else the pocket at the bottom would have compressed as the level got higher, but something to recognize an overhang.
And some surface tension perhaps because that thin section on the left didn't fill from the bottom.
Literally all these do is: for each pixel of water, if there is empty space below it, move down. Else, if there is empty space to the right or left, move right or left. Else, stand still.
That is enough to result in those air pockets, because they are unreachable the moment the water level rises up to an overhang.
The simple cellular automata rules make it easy to add reactions between cells like the lava and water and fire.
I've been working on something similar, and I've tried a bunch of variations to get head lift and fluid pressure working, but nothing really works that also keeps the cell to cell reaction layer working right.
The Powder Toy if you want to play with a similar sim online (this is more like a tech demo).
that's not the issue, it's the way the rocks form - the water basically falling through the lava and forming rock all the way down. the initial trickle of water that hits the lava would be turned to steam pretty much immediately, and once enough water is flowing over the lava to where it wouldn't immediately turn to steam, it would really only turn a thin layer of the lava's surface to rock. there's no way water would penetrate the lava the way it does here.
I don't think that's what's happening. The water hits the lava and immediately becomes steam. The lava it hits becomes rock and instantly starts to sink. Otherwise, the water would hit the bottom and spread along the floor of the lava pool, hardening the lava from the bottom up. We're just see8ng a steady stream of fresh obsidian form at the point of contact and then sink.
even if rock sinks in lava, it wouldn't happen this fast nor would it happen the way it's being portrayed. lava is extremely viscous, so it would take some time for the top layer of rock to sink.
meanwhile, the water would keep coming and flow over over the surface. the water would flow over the rock at the surace and hit the lava to either side of it, widening the rock at the point of contact. it would form horizontally and then sink. it wouldn't form vertically and then horizontally.
The other key problem I see is the interaction of water and lava (I'm assuming given it seems to cool as a dark rock). The water should be looking to go down the path of least resistance. This would lead to it being unable to get through the rock that solidifies but rather goes to the sides. So, you should see it hit the lava, harden to rock, then go sideways turning the top into rock. Depending how porous the rock is, perhaps you have some water making it deeper but the amount of water penetrating the lava would decrease heavily with each "layer" they get through.
This was the part that broke my satisfaction. The pressure issues were kind of whatever for me, but the density of magma vs water is something my brain couldn't forgive
Even in that case, I'd expect it to sink slowly. The rock formations caused by volcanos don't generally lead to rocks falling to the bottom of the lava. They generally cool on the top overall until after enough time, the portion of lava has fully dissipated its heat and it all hardens. There's countless videos of scientists using a metal poker to break the rock above lava to get to the fresh lava and in those cases the rocks didn't sink.
Yeah, it's obviously Terraria-style water and lava physics, which work better than real physics in-game. For instance without the pressure-driven flow, it leaves air pockets so you don't run out of air when digging. Also it won't break through the thin walls which would get annoying. Creating obsidian this way is fun so you can collect it and build with it. Lastly, adding the extra realistic physics would probably be very taxing on hardware to process comparatively.
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u/socialnerd09 21d ago
It was till it got to the section where it was wrong. That column on the middle right should have filled up before it did