backtop


Print 38 comment(s) - last by 3kliksphilip.. on Feb 20 at 11:59 AM


The physics-intensive Cell Factor: Revolution demo will soon be "No PhysX Card Required"
NVIDIA's purchase of AGEIA leads to a PhysX-on-CUDA port

With the announcement earlier this month of NVIDIA's acquisition of AGEIA, rumours began to fly immediately surrounding the future of dedicated physics hardware -- and it now appears that the PhysX name will live on as a checkbox beside the capabilities of some current and most future NVIDIA GPUs.

During NVIDIA's fourth-quarter financial results conference call, CEO Jen-Hsun Huang responded to several questions about the plans for technology obtained in the AGEIA purchase, revealing that the plan is to port the AGEIA PhysX engine to NVIDIA's CUDA (Compute Unified Device Architecture) C-like programming language.

"We're working toward the physics-engine-to-CUDA port as we speak. And we intend to throw a lot of resources at it." said Huang. "[PhysX on CUDA] is just going to be a software download. Every single GPU that is CUDA-enabled will be able to run the physics engine when it comes."

NVIDIA's choice to run a physics engine on a GPU runs in stark contrast to AMD's assertion in late 2007 that "GPU based physics is dead until DirectX 11." Every NVIDIA 8-series GPU is currently capable of running CUDA applications, and future GPUs will no doubt retain this feature.

The idea of using SLI for more than graphics has been brought up by NVIDIA in the past, so it was no surprise to hear Huang endorsing its further use again. "It might - and probably will - encourage people to buy a second GPU for their SLI slot. And for the highest-end gamer, it will encourage them to buy three GPUs." No mention was made of the use of the upcoming "Hybrid SLI" technology showcased at CES 2008, but an onboard GPU supporting CUDA could theoretically be used as a physics processor while discrete GPUs handle the rendering.

No timeframe for the release of the PhysX-on-CUDA software was specified, but with the PhysX engine to be available to a larger audience, it will no doubt encourage the development of more accelerated physics engines in upcoming titles.


Comments     Threshold


This article is over a month old, voting and posting comments is disabled

ATI physics?
By nafhan on 2/15/2008 12:02:20 PM , Rating: 2
If physics become "necessary", sounds like ATI is going to have to get Havok or AGEIA in hardware.
Hopefully, nVidia or Intel license their API under a permissive/inexpensive license, and it gets adopted quickly by the other two so we don't end up in a physics format war.
Who knows? With the right software, it might be possible to run either physics engine in modern graphics cards programmable shaders.




RE: ATI physics?
By saiga6360 on 2/15/2008 2:24:47 PM , Rating: 3
Time to test that new Alliance.


"My sex life is pretty good" -- Steve Jobs' random musings during the 2010 D8 conference

Related Articles
Update: NVIDIA to Acquire AGEIA
February 4, 2008, 5:31 PM
Havok Causes Havoc in GPU Physics
November 21, 2007, 4:46 PM













botimage
Copyright 2014 DailyTech LLC. - RSS Feed | Advertise | About Us | Ethics | FAQ | Terms, Conditions & Privacy Information | Kristopher Kubicki