Questions about Physx

SantaClaws

The option to enable the "Physx GPU acceleration", what does it do exactly? And why does the configuration in my nvidia control panel, where you choose wether the Physx runs on the cpu or the gpu, not affect natural selection 2? Natural selection 2 seems to only run physx on the cpu, why?

ultranewb

Confirmed - it does nothing. What it should do is offload PhysX work onto the graphics card instead.

Nordic

I think I am glad I don't even have the PhsX software installed.

DC_Darkling

odd. my ns2 console says its using the gpu dispatcher. (I didnt check my nvidia control panel yet though)

Ghosthree3

It's bugged/not done.

shonan

DC_Darkling wrote: »

odd. my ns2 console says its using the gpu dispatcher. (I didnt check my nvidia control panel yet though)

Yeah, well I have AMD and it still says using GPU dispatcher

:P

Paajtor

How can I tell if it's working?
NS2 runs fine here, and I've set Physics to automatic in the nNidia CP.

A_Pajander

Are there even any PhysX effects/code in the game?

SantaClaws

Paajtor wrote: »

How can I tell if it's working?
NS2 runs fine here, and I've set Physics to automatic in the nNidia CP.

NVIDIA Control Panel -> 3D Settings -> Show Physx Visual Indicator -> Run ns2.

It should say with big letters if Physx is on, and what processor it's using.

Paajtor

thx, will try

DarkLaunch357

It isn't working at all though. My dedicated GTX 275's load is always 0%.

On other games like Batman Arkham Asylum it's almost always at 90%+ to keep up with the Titan's framerate

A_Pajander

By the way, if they're going to implement some hardware physics effects, wouldn't it be better to use DirectCompute or OpenCL or something? Or is it too much work? Using PhysX cuts out 40% of all users plus everyone on Linux.

Paajtor

rgr, it doesn't work, even if I force Physx on my GPU through the drivers.
Indicator says it uses my CPU, despite what the console tells me.

SeeVee

Ya this needs to be fixXxored!

I don't think it would make too big a difference on my rig but for people with lower CPU specs it would help to offload the calcs to the more beefier GPU (if they have one).

Mestaritonttu

james888 wrote: »

I think I am glad I don't even have the PhsX software installed.

It's hell to play stuff like Mirror's Edge without it, where they've basically built physics around it. I had an Ati card and breaking windows would make my game stutter to a halt.