NVIDIA CUDA realtime particles demo

[MrBratkenSolov]

its 2011 and we still got only tech demos... bullshit

[hitokiri657]

At some point in the future we'll be looking at this and be like 'meh'. That's because I know there is still room for improvement. How? How abouutt... simulating atoms to their actual size... ;-) Like 6.022E23 / mol ? Yeah, totally sweet

[danthemanzizzle]

think about the amount of particles involved in pouring a glass of water....like 1,000,000,000,000,000,000? how about planetary collision? 1,000,000,000,000,000,000,000,­000,000,000,000,000,000,000,00­0,000,000,000,000,000?

[otonanoC]

@danthemanzizzle

But seriously, we can use analytic methods to accurately simulate fluids with far less particles than are present in reality.

[rodisnothere]

Taste the rainbow... :P

[Wipemuck]

What am I supposed to be seeing? I just see a bunch of balls lol

[found817]

what is cuda?? how does it work is it something you install??

[d3tach3d]

:30 Mochi!!!! Any OE-CAKE users?

[XAutomatedOwnerX]

@d3tach3d Yep :)

[imalwayswatchingu00]

Now, they have to do this again.

With 1 zillion balls... then, it might look more like water.

[mrhalholhel1900]

I CANT SHIT A BETTER FLUID ENGINE.

Okay so loop every object for every object.......

for(i=0,i<65,000,i++){

}

[JoDaddyy]

What does Cuda mean? What is it?

[Dune1884]

and why wouldn't a Radeon HD Card do this ?

[Lawdrun]

@Dune1884 Because CUDA is part of nVidia's monopoly.

[IMamazone]

Fluid simulation done wrong you alot more particles and the settings are wrong its seems static

[benry200]

what the hell is cuda

[roejames12]

I could only dream to have this rendered real time. I'm stuck with hours and days of render time (no) thanks to my PC. :(

[himeee]

@fgndngv

I used Visual Studio 2008 to view the files and recompile them. They have other demos too.

[himeee]

@fgndngv you have to recompile the code. Well that's the only way i know how to do it. in the particles.cpp you can find near the top of the page a variable to set the number of particles. I set it to 75000 particles on my 8600M GT, it can render it at about 25-30 fps. It's pretty sweet.

[Califorun]

@mchlor Well, nowadays it's being applied in Bioinformatics for protein folding studies and a whole host of other useful endeavors!

[jamesrogers93]

whats difference between physx and cuda?

[UntakenNick]

What's the name of that program..?

[byteusa]

Wooooooow! More cores are better than few.

[pvtbert]

this GPU is released in 2006... i wonder how much 480's can do today :)

[ccfreakMetal]

huge power : D maybe i shoud get a new grafic card :P

[Blinkwing]

its ike a fluid, the gfx card just has to calculate the particles together

[ultima3210]

What people dont understand is that this was not rendered. It is real time computation. He is using the power of the graphics card to perform calculations 100s of times faster than the cpu can perfrom, in essence a homebuilt supercomputer.

[bredekrist]

i use 3d max and that is some fucking power to be no rendering :D

[VinnyLT9000]

so what are you saying? the only known supercomputers i know you can build at home involve the Tesla GPU's.

[ultima3210]

If you have an NVIDIA graphics card that is CUDA enabled you can build your own supercomputer. You dont need to buy the Tesla GPU which is essentially the same thing.

[VinnyLT9000]

I've never seen a GTX card perform this smoothly with anything. But if its true thats pretty amazing. I have heard promissing things about the Tesla GPU's

[ultima3210]

look at my video....i made one....it is realtime and you can see it....

[VinnyLT9000]

you don't have any videos. and if you do they aren't accessible.

[ultima3210]

yea i do its titled "big bang"

[VinnyLT9000]

so then whats in your rig?

[ultima3210]

Just a regular 8800GT

[uland17]

THIS IS REAL TIME?!!!

Man, i still can't belive you how did u do that?

Did u use programs like 3ds max?

[coolmanjasdeep]

i wanna eat it. :S

[paimail21]

I got that feeling too... nom nom nom!

[coolmanjasdeep]

yes be teh heavy. om nom nom.

[gyrocam]

* * * * *

[DerpWorms]

BALL PIT. Shit, man, I wanna jump in there, and toss some of those things around.

[thenotoriousadin]

i miss burger king as a kid!

[TheDarkUsername]

o_e

[Mallaien]

This doesn't look like a fluid simulation, it looks more like a rigid body sim. if it was fluid it would have viscosity and a lot more movement. The ball doesn't even float. its rigid body simulations where some of the spheres clump together.

[recorded420]

hence why it is a particle simulation, not a fluid simulation.

[Mallaien]

Read the description first 6 words. its implied it a particle fluid simulation. I hardly acts as a fluid because of the huge chunks that seem to fly off and not behave like a fluid.

[NVCUDA]

You're right, this isn't really a fluid simulation like SPH, but it does look a bit like fluid.

[otonanoC]

@Mallaien

It is definitely NOT a rigid body simulation. It is something called "Discrete Element Method" or DEM. This is meant to simulate salt, sand, or even pouring dry rice. A rigid body simulation calculates collisions with the actual geometry of the particles, (far slower to calculate!) Please see my video which looks even less like water. watch?v=WiGQBaK1Xzg

[sutasman]

@Mallaien well what more is real water but a rigid body simulation of H2O molecules clumping together. they are analagous.

[hansfase]

if you are interested in benchmarking the benifits of cuda please look into the University of Sanford's Folding at Home (F@H) programs. I assure you most top end graphics cards with Cuda can run calculations and stream processing exponentially faster than top of the line cpus. Cuda is limeted to run only certain calculations though...

[linuxrobotdude]

Well, a gpu is purely a mathmatical chip. While CPUs are good at instructions and data moving, GPUs excel in math. And all of us wondered what happened to the Math Co-processor.

[danielmpr]

smooth!!!, doesnt looks choppy!

[Zephear]

Looks cool, but it would be interesting to see the same task performed by means

of the CPU only in order to see how much performance CUDA adds.

[xenexe]

THIS IS FUCKING INTENCE!!!!!!

[BigGuknowme]

WTF is CUDA?

[LabakiTurbo]

It's a NVidia's API to programm its graphics cards for non-graphics purposes (like this video's real-time multi-body physics simulation).

[nkarasch]

that is a heck of a lot of physics

[Kle1NN]

n1ce

[Metallica737]

OH SHIT! ITS MOONSAND

[walikai]

nah man, thats FLOAM

[danielmpr]

Yep, sure looks like FLOAM!

[greaper55]

that is some hella trippy shit man

[teslaglobal]

Who cares what it looks like does it really have any real world aplication usage."nah we just make all the is crap so people can sit infront of their PC alday and play and say OOOH AAAh. Time wasters.

[arpoot]

It turns the graphics card into what is effectively a really fast CPU. As such, it is useful for things such as visual effects for movies, complex mathematical operations, scientific research, simulations, etc.

[arpoot]

For example, I have 3 3d renders of a few seconds each, of fluids here on youtube. Each took about 12 hours just to simulate - not even to render. As shown by these videos, CUDA can let you do similar stuff in real time.

[rocketmanket]

CUDA can also accelerate general intensive tasks, like editing a photo in Photoshop CS4. Handles 2GB files with ease as if it were only 2MB.

[micahpharoh]

it looks absolutely amazing!

[kre8ive56]

why are they using cuda when nvidia cards have physx support?

[luketheduke0]

Does this use smoothed particle hydrodynamics? If so, could you explain how it works? I have been trying to use it, but I just don't understand the algorithms that I have seen.

[00Kirby0]

I did not get this in the toolkit... I got the 2.0, does that mean anything?

[00Kirby0]

gimme link plz

[gioy808]

its included in the toolkit ;)

[SPLITZRZR]

what does cuda do for games now days?

[EliteSoldier112]

Better physX overall..

[lebensborn666]

awsome ^^

[vishu81]

The particles don't move on my laptop! I only see the grid and balls hanging in air (I can rotate them though)

[flamingaxe791]

Id like to stop seeing demos and start seeing some real shit!

[OGMO11]

yeah, when will they FINALLY apply it to somthing... they're like bullshitting around now...

[sergi5122]

yea realise that it something like this was in the game, the videocard would have to waste most of its resources just to render the balls flying around.

[hacked360]

I have a 9800 GTX I downloaded this but how do I use it? You know like open up the program?

[uBastianX]

I swear its behavior ist identical to the fluids, not particles

[Xanzzu]

the computer simulation of fluids are based on making and simulating particles.

[CheeseSample]

Where can I download that?

[majorpan]

you can download that @ the nvidida cuda site, the sdk version works,

but i have just one problem with the sdk and the particles demo.

in my case the .exe searches and does not find the cudart.dll

can you help me please

[CheeseSample]

Sorry, I don't know what to do. I assume that you may need to separatley download it, or maybe it's an error, but if not, I'm not really sure what could be going on. Thanks for the site by the way! : )

[majorpan]

download the driver and the toolkit and shezam u got it^^ i think its a sdk version at the nvidia cuda zone. type that into google and i think the first site is the right one

[arm2armcos]

Fantastic!!!

could you provide source of this? is it possible to do on LINUX?

[AnnoyedDragon]

How much would you say this is utilising the 8800GTXs potential performance?

Considering Nvidia's goal is to get GPU physics in games, when shared with graphics I am wondering how much a simulation like this would add to the processing load?

[girlsdrinkfeck]

itll be better used with a tesla gpu , 8 series is way under powered

[TerracideDK]

Tesla is GeForce 8 *rolling eyes*

[girlsdrinkfeck]

chipset is yes , to be specisfic i was on about the 8800gtx like the above comment

[yubastardus]

that is positively awesome! I wonder what could you do with dual 8800GTX in SLI, 120,000 particles? triple? quad?

[JerezJulio]

awesome, I see that the hardware start to flex its muscles.

[XTCinmee]

That is nice, I can't wait to finish my build...