Water physics?

[whiteraven]

So when you guys going to fix the dodgy water?

https://steamcommunity.com/sharedfiles/filedetails/?id=2640275466

https://steamcommunity.com/sharedfiles/filedetails/?id=2628977892

[cswiger]

Do you have sufficient understanding of the nonlinear Navier-Stokes equations used to describe turbulent liquid flow?

Can you write code which performs a more accurate liquid flow simulation suitable for realtime use in a game like ONI, which needs to run on commodity PC hardware rather than on supercomputers?

If so, Klei could definitely use your help. Most aerospace companies would appreciate your help as well, as this is a very hard problem to solve.

[McTraveller]

Could you elaborate on what is wrong with fluids? They are pretty consistent within the ONI world itself. They just behave a bit differently than in our world; primarily they seem to be much much more viscous.

[AlexMBrennan]

Could you elaborate on what is wrong with fluids?

When you empty a bucket you do not get the 5m tall column of water visible in the first picture.

I would say that this problem is caused by liquids forming tiles in inappropriate places (the game should spawn drops which are automatically merged with the liquid tile below) but a general solution seems impossible if we stick to the one element per tile rule.

[Nero Nox]

yes, sadly water has a much higher viscosity than diarrhea

[whiteraven]

I was trying to get the water to fall via gravity but it seems to stick to walls and such

[Warm Fuzzies™]

Just remove the tile under the door. mop up the rest. problem solved

[bwhitejr]

Originally posted by whiteraven:

As usual, the first person to comment is an idiot. well done! :jawagrin:

He's not an idiot, though - he's correct, if you can create a realistic water simulation for game engines like ONI uses, you'll be a shiny new multi-millionaire from selling it to game studios.
The limitations of the ONI game engine create the oddities in the behavior of the water in the game. It's amusing at times - and consistent with how liquids and gasses work (and don't work) in the game.
But I guess it was more important for you to insult him, instead of trying to understand what he was saying (which is factually correct.)?

[Power and Wealth]

I had to give cswiger an award, that comment was gold and spot on.

[whiteraven]

Originally posted by bwhitejr:

Originally posted by whiteraven:

As usual, the first person to comment is an idiot. well done!

He's not an idiot, though - he's correct, if you can create a realistic water simulation for game engines like ONI uses, you'll be a shiny new multi-millionaire from selling it to game studios.
The limitations of the ONI game engine create the oddities in the behavior of the water in the game. It's amusing at times - and consistent with how liquids and gasses work (and don't work) in the game.
But I guess it was more important for you to insult him, instead of trying to understand what he was saying (which is factually correct.)?

well whatever. I'm not saying it needs to be realistic, just better so it doesn't stick to things and cause problems. should not be that difficult to do, there are worse engines than this surely.

[Angpaur]

What kind of problems does it cause?
Most of the water flows down and what sticks is just a few grams. If there is any problem then it is purely visual.

[Boogey]

Originally posted by Angpaur:

What kind of problems does it cause?
Most of the water flows down and what sticks is just a few grams. If there is any problem then it is purely visual.

This is quite spot on. Gravity in the asteroid is less than in earth, thus the water doesn't "go down" in same manner as you'd expect. But it does go down and if there is something on the way it easily leaves some drops there - which is mostly a visual, nothing you can drink from.

[whiteraven]

When the water can leak between two blocks but gets stuck on ladders, as seen in first pic. then its obviously a problem and has nothing to do with gravity.

[Tarnos]

Who even uses 1 block wide paths...Use 2 or 3 wide and/or use a special block that lets the liquid flow through it.
As others have said, if you want a physics simulator then play one, water physics are not too important in this game and they work well enough.

There are other gameplay issues that should be a priority, there are 0 games that are 100% bug free, since its not possible to fix them all, especially for a game like ONI(it is possible, but not worth it, all issues/bugs have a priority of importance and devs usually work in that order, so things can be left not fixed for years, because new issues come out that take priority)

[Power and Wealth]

whiteraven wants the water to not act like blocks, the devs know about this problem but so far a fix has not been implimented and I expect no fix will be made. I've seen the problem in my own game but it has so far caused no problems for me, its just some weird looking water and that's about it.
Its weird but harmless.

[whiteraven]

Originally posted by Archaos the Mad Bro:

whiteraven wants the water to not act like blocks, the devs know about this problem but so far a fix has not been implimented and I expect no fix will be made. I've seen the problem in my own game but it has so far caused no problems for me, its just some weird looking water and that's about it.
Its weird but harmless.

yes thank you, good to know someone is smart enough to get my point.
As far as harmless goes, there's still a risk of disease and drowning and just being a general mess. probably a good thing the game doesn't have death by electrocution lol