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[nikos]

Position Based Fluids is a way of simulating liquids using Position Based Dynamics (PBD), the same framework that is utilized for cloth and deformables simulation in PhysX SDK.

Because PBD uses an iterative solver, it can maintain incompressibility more efficiently than traditional SPH fluid solvers. It also has an artificial pressure term which improves particle distribution and creates nice surface tension-like effects (note the filaments in the splashes). Finally, vorticity confinement is used to allow the user to inject energy back to the fluid.

More details on this a new technique will be available later on, in a SIGGRAPH 2013 paper “Position-Based Fluids” by Miles Macklin and Matthias Mueller-Fischer, and we also expect it to be included in future versions of PhysX SDK or APEX modules.

Video: http://www.youtube.com/watch?&v=6WZZARzpckw
Source: http://physxinfo.com/news/11109/introduction-to-position-based-fluids/

If this is implemented in games, I'm going to waste so much time playing with water. Imagine a new jet ski racing game with this technology. This demo is running on a single GTX 580.

 

[kazebyaka]

Still feels like oil. And we won't see it ingame anytime soon

 

[Alienous]

Seriously , that looks amazing.

Aquaman game inbound.

 

[Tummi Gummi]

Illusion Soft will make use of this.


Anyway it looks cool, but if I had a penny for every cool physics tech showcase from the last seven years that was never implemented in-game, I'd have...at least 15-20 pennies.

 

[LiquidMetal14]

This looks like next gen. Can't wait to mess with this in a game.

 

[amar212]

Somebody should make a puzzle game using only this technology.

 

[MormaPope]

Illusion Soft will make use of this.


Anyway it looks cool, but if I had a penny for every cool physics tech showcase from the last seven years that was never implemented in-game, I'd have...at least 15-20 pennies.

Your username constantly changes to different ones, is that a glitch or do you have some electro voodoo magic?

 

[Beardz]

Yup, looks like oil.

 

[plainr_]

I'd shoot a fish tank for hours with this tech.

 

[BigEvilTurtle]

I want to pour it all over my hot and bothered body.

 

[Slygmous]

Looks absolutely amazing!

Still slightly too dense or something though, but who cares.

 

[Tummi Gummi]

Your username constantly changes to different ones, is that a glitch or do you have some electro voodoo magic?

3rd-rate imitators trying to exploit my fame and success.

 

[Wyndstryker]

Ok, now someone summon leviathan and lets see what happens!

 

[LiquidMetal14]

Yup, looks like oil.

Sure it has a sheen to it but behaves like water. That's what matters.

 

[kenta]

Still looks a little too "splashy" to me, as if the water reacts too much

 

[VariantX]

almost there, but the water didn't seem to flow out right after they broke out all of the sides of the cube except one.

 

[Sethos]

I love how people need to nitpick and say how it doesn't reflect real-life dynamics or consistency 1:1 - Yes, we should stick with that awful canned shit we have now, because we can't have ANY improvement that isn't as good as real-life.

Gawd, it's the same in every physics thread. We know it doesn't look super-duper-real!

 

[DesertFox]

It looks slightly too viscous, but wow! It moves in a very realistic way.

I'm sure the settings could be tweaked so it doesn't look so... sticky

 

[DieH@rd]

Looks great. I wonder how much "expensive" will this be to be placed inside gameworld.

 

[Demon Ice]

That looks astoundingly good.

 

[Dictator93]

Still looks a little too "splashy" to me, as if the water reacts too much

just a matter of tweaking a viscosity variable...

Also.. people complaining about this must be insane.
It is obviously so shitty looking, am I right?

(huge sarcasm)

 

[Riggs]

Illusion Soft will make use of this.


Anyway it looks cool, but if I had a penny for every cool physics tech showcase from the last seven years that was never implemented in-game, I'd have...at least 15-20 pennies.

This comment and avatar mix really made me laugh.

 

[LiquidMetal14]

I love how people need to nitpick and say how it doesn't reflect real-life dynamics or consistency 1:1 - Yes, we should stick with that awful canned shit we have now, because we can't have ANY improvement that isn't as good as real-life.

Gawd, it's the same in every physics thread. We know it doesn't look super-duper-real!

That's really the point I was trying to convey. This isn't pefect but who cares when it looks this good. All of sudden we have experts here

 

[Perkel]

good oil simulation

 

[Goldmund]

It looks really weird and really cool at the same time.

 

[Sethos]

That's really the point I was trying to convey. This isn't pefect but who cares when it looks this good. All of sudden we have experts here

Yeah, we just have that in every single thread, some Ph.d in physics, thermodynamics and how toiletpaper moves in gale winds, has to tell us the rock at 1:38 in the video didn't move according to actual laws of physics and the flag at 2:14 clipped through itself at one point, disaster.

I just mean, I'd kill to start seeing this stuff in games in that form, we definitely shouldn't nitpick and compare it to real-life, we just need to embrace how MASSIVE of an upgrade it is.

 

[majik13]

I think the oil comments come from most if not all this being shown in slo motion. if it were real time it would look more realistic, but then you dont get all the eye porn.

edit: additionally everything is an approximation so it will never be 1:1 true to life, especially for something real time.

 

[KKRT00]

Looks very good and looks very expensive

 

[BigEvilTurtle]

Actually, looks too watery. Never mind, it sucks.

 

[jaypah]

When they shot the glass tank full of water....yes. A million times yes! Incredible, thanks for posting.

 

[GulAtiCa]

ok, that's cool. Though I doubt we will see it in games anytime soon (at least to same 100% level). (unless resources aren't that high)

 

[Nymerio]

Amazing. Even if it's not 100% realistic it's still miles ahead of the shitty fluid effects we currently have.

 

[LeleSocho]

Hell knows how many years i have to wait to have this ingame... i know it will be a good day though.
It takes an entire 580 to run that thing... maybe next-nextgen we will have it ingame.

 

[LiquidMetal14]

Hell knows how many years i have to wait to have this ingame... i know it will be a good day though.
It takes an entire 580 to run that thing... maybe next-nextgen we will have it ingame.

If it's cheap and efficient then it will likely be used in smaller bits for next gen and maybe in bigger huge water pools on PC.

Either way we need to move towards that level of water and ditch the current and inefficient water we have now. It's a hog in something like CryEngine 3.

 

[LeleSocho]

If it's cheap and efficient then it will likely be used in smaller bits for next gen and maybe in bigger huge water pools on PC.

Either way we need to move towards that level of water and ditch the current and inefficient water we have now. It's a hog in something like CryEngine 3.

It runs on a 580 aka it's not cheap, that thing alone is almost the power of the ps4 and it renders only the water.

 

[schuey7]

That was bloody amazing.Imagine a shootout in a place full of fish tanks or a scene with a firehose used to subdue enemies with them reacting accurately.Cannot wait for games to incorporate this.

 

[BigEvilTurtle]

That was bloody amazing.Imagine a shootout in a place full of fish tanks or a scene with a firehose used to subdue enemies with them reacting accurately.Cannot wait for games to incorporate this.

If the water was capable of leaving a glossy stain on floors it lands on and then disappears from, I'd be sold.

 

[maquiladora]

Looks awesome.

 

[MrTroubleMaker]

I can't wait until this stuff is actually in games.

 

[MrBig]

I love how people need to nitpick and say how it doesn't reflect real-life dynamics or consistency 1:1 - Yes, we should stick with that awful canned shit we have now, because we can't have ANY improvement that isn't as good as real-life.

Gawd, it's the same in every physics thread. We know it doesn't look super-duper-real!

Ya, people always forget how terrible all the current implementations of this tech. Even stuff like the water in crysis may look pretty but its just a static plane with displacement effects. This tech will get better with time, and it will go much faster if more devs start playing with tech like this and iterating on it in practical applications rather than just as a show piece

 

[LeleSocho]

If the water was capable of leaving a glossy stain on floors it lands on and then disappears from, I'd be sold.

I know nothing about computer graphics i don't think it should be too difficult to add shaders where the "particles" of water goes (maybe bump mapping since it always gives that "humid" effect?) maybe it costs a lot power wise but i don't think it should be too hard.

But again i'm talking out of my ass.

 

[RiverBed]

nVidia shows amazing smoke, fluid/cloth/hair simulation for years and it never comes close to translating to games AT ALL. Who is this specifically for? Too much for in-game, too little for CG movies.

And why do their water always appear so thick/viscus? It feels like the animation is shown from a huge distance and massive waves, or it isn't water at all- more like custard.

Why not tap lava yet? It is easier to do than water. I wasn't impressed by the lavs's animation they showed in UE4.

 

[Legato.Reborn-]

Yeah, we just have that in every single thread, some Ph.d in physics, thermodynamics and how toiletpaper moves in gale winds, has to tell us the rock at 1:38 in the video didn't move according to actual laws of physics and the flag at 2:14 clipped through itself at one point, disaster.

I just mean, I'd kill to start seeing this stuff in games in that form, we definitely shouldn't nitpick and compare it to real-life, we just need to embrace how MASSIVE of an upgrade it is.

pffffttt
heheh

 

[Xanadu]

Yup, looks like oil.

lol at your high standards

 

[Cramoss]

That was bloody amazing.Imagine a shootout in a place full of fish tanks or a scene with a firehose used to subdue enemies with them reacting accurately.Cannot wait for games to incorporate this.

Playing that shit on slow-mo would look amazing.

 

[Jackson]

Great looking. But not this gen.

 

[Vexxan]

It looks too thick to be water...still looks good though.