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PhysX getting added to the basic GeForce driver for August 12th.

So soon you guys will be able to play the Unreal Tournament PhysX Mod like I did in our GTX 280 review without installing additional PhysX drivers. So sayeth this Tech Report article. The PhysX portion of the new GeForce drivers will also allow more GeForce cards to push PhysX calculations. GeForce 8 and GeForce 9 owners will finally be able to get in on the fun! 

What I can't wait to try is these new Nvidia PhysX demos that are pictured in the article. A fluid demo and a demo about some disgusting alien thing called the Great Kulu:

In this demo, Nvidia shows off soft-body physics through Kulu, a giant tentacled slug-caterpillar that chases you down corridors by hideously distorting itself like a trash bag full of Jell-O. I've had to sleep with the light on ever since testing this.

The Great Kulu

Look for the new PhysX demos to appear on this page on or after the 12th, but just grab the newest GeForce drivers from the usual place. By the way, I highly recommend the Medusa demo (currently available). It is great to watch and even more fun to mess with the facial parameters of medusa and the warrior.


13 Comments
Thursday, August 07, 2008 8:27:00 PM
jimday
n00b
this is gonna be so sweeeeet
Thursday, August 07, 2008 9:50:39 PM
I wonder if this is gonna even work....
Friday, August 08, 2008 1:17:44 AM
aVaLaNcHe
Member
Looks cool but I would like to see more mainstream games that actually incorporate PhysX.
Friday, August 08, 2008 2:14:08 AM
wyz135
Senior Member
Nvidia still doesn't forget about the FX series which fails us
Friday, August 08, 2008 1:20:00 PM
Im so happy i remeber i was thinking about get a ageia physx, now i just get it free :), I still cant wait for the new 280gtx Im getting tired of the sli system,
Friday, August 08, 2008 4:35:55 PM
what i still dont get (i read the article) is why is there no framerate decrease when the gpu physics is enabled? I mean using those stream proc's for physics should take away from their potential use for the standard graphical tasks. Sure it frees the cpu, but how important is that anyways?
Saturday, August 09, 2008 1:28:43 PM
Radiator
Senior Member
@crazyguy248 - that's because calculating physics doesn't need nearly as much horsepower .
Saturday, August 09, 2008 6:09:05 PM
ultima
Senior Member
uh have you done much physics lately ?

flight simulators have low frame rates for a reason. and its not because of the graphics needed.
Saturday, August 09, 2008 8:10:27 PM
Radiator
Senior Member
That's because , as far as I know , the CPU handles the physics there . HOWEVER , since a highend GPU's processing power is like 19 or 20 times higher , than that of a CPU , the amount of processing power needed for physics calculating is nothing to the GPU .
Saturday, August 09, 2008 11:05:35 PM
It's not that a GPU has 20x the processing power of a CPU it's more in the way it handles data. A CPU is (essentially) a serial processor, meaning every bit of data must follow the bit before it. With physics processing this puts a great strain on the CPU as it must wait for one calculation to complete before beginning another. With a GPU you have a massive parallel processor, which is designed not to stream data but rather to process everything at once. This means that a physics engine does not need to wait for one process to finish before starting another, allowing for either one complex physics particle system (like a cloth or water) to be rendered in a single cycle (slight exaggeration, but you get the idea) or a multitude of simple physics to be rendered at the same time (like particle collisions). Also, nVidia doesn't utilize it's shader processors in the same function that ATI does. They do alot of their post-processing effects (AA/AF and the like) in the ROP's (hence the huge number of them) so in most games the 240 stream processors in the GTX280 is way overkill (excluding the 3 DX10 titles out). So taking 20-40 of those shaders and devoting them to physics will have minimal if any impact on overall performance, and by freeing up the CPU to track objects they will gain that performance right back.

Sorry this is so long, I hope it is informative.
Monday, August 11, 2008 1:10:50 PM
Radiator
Senior Member
Thanks for posting the long version of that .. that's a lotta text .
Although , in terms of real life performance , a GPU does have several times more processing power , for lets say physics .
Monday, August 11, 2008 3:38:11 PM
Tomorrow... :)

This is going to be good. I'm excited.
Thursday, August 14, 2008 11:27:38 AM
Hey! Where's the new driver and PhysX demos? I'm waiting...
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