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PhysX
PhysX logo.jpg
Developer(s) Nvidia Corporation
Stable release 9.09.1112 (as of December 9th, 2009)
Operating system Windows 7, Windows Vista, Windows XP, Mac OS X, Linux (32-bit, not GPU accelerated), Wii, PlayStation 3, Xbox 360
Type Physics simulation
License Proprietary, Freeware, Commercial
Website Nvidia PhysX developer site

PhysX is a proprietary realtime physics engine middleware SDK acquired by Ageia (which itself was acquired by Nvidia in February 2008[1]) with the purchase of ETH Zurich spin-off NovodeX in 2004. The term PhysX can also refer to the PPU add-in card designed by Ageia to accelerate PhysX-enabled video games. Video games supporting hardware acceleration by PhysX can be accelerated by either a PhysX PPU or a CUDA-enabled GeForce GPU, thus offloading physics calculations from the CPU, allowing it to perform other tasks instead—potentially resulting in a smoother gaming experience.

Middleware physics engines allow game developers to avoid writing their own code to handle the complex physics interactions possible in modern games.

The PhysX engine and SDK are available for the following platforms:

Nvidia provides both the engine and SDK for free to Windows and Linux users and developers[6]. The PlayStation 3 SDK is also freely available due to Sony's blanket purchase agreement.

Contents

Nvidia acquisition

In February 2008, Nvidia bought Ageia and the PhysX engine and has begun integrating it into its CUDA framework, effectively rendering the PhysX add-in card redundant.[7] With Intel's cancellation of Havok FX, PhysX is currently the only available solution for physics hardware acceleration.[8]

In August 2008, Nvidia released drivers that allow GeForce 8 series and above video cards to implement PhysX processing.[9]

Hardware

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PPU

A physics processing unit (PPU) is a processor specially designed to alleviate calculations from the CPU, specifically calculations involving physics. Soon after the release of Ageia's PPU, graphics card manufacturers announced plans to implement similar functionality via the GPU. Support for the Ageia PPU solution was dropped for Windows 7.[10]

GPU

A graphics processing unit or GPU (also occasionally called visual processing unit or VPU) is a dedicated graphics rendering device for a personal computer, workstation, or game console. Modern GPUs are very efficient at manipulating and displaying computer graphics, and their highly parallel structure makes them more effective than general-purpose CPUs for a range of complex algorithms such as accelerating physics using PhysX. A GPU can sit on top of a video card, or it can be integrated directly into the motherboard. More than 90% of new desktop and notebook computers have integrated GPUs, which are usually far less powerful than their add-in counterparts.

Any CUDA-ready GeForce graphics card (series 8 and newer, having 32 or more cores and 256MB or more of video memory[11]) can take advantage of PhysX without the need to install a dedicated PhysX card.

Versions 186 and newer of the ForceWare drivers disable PhysX hardware acceleration when a GPU from a different manufacturer, such as AMD, is present in the system.[12] Representatives at Nvidia stated to customers that the decision was made due to development expenses, and for quality assurance and business reasons.[10][13] This decision has caused a backlash from the community that led to the creation of a community patch for Windows 7, circumventing the GPU check in Nvidia's updated drivers. Currently this patch only works on GPUs and not PPUs. [14]

PhysX P1 (PPU) hardware specifications

ASUS and BFG Technologies bought licenses to manufacture AGEIA's only hardware PPU—the PhysX P1 w/ 128MB GDDR3.

  • Multi-core MIPS architecture-based device with integrated physics acceleration hardware and memory subsystem with "tons of cores"[15]
  • 125 million transistors[16]
  • 182 mm2 die size
  • Memory: 128 MB GDDR3 RAM on 128-bit interface
  • Interface: 32-bit PCI 3.0 (ASUS also made a PCI-Express 1x version card)
  • Sphere collision tests: 530 million per second (maximum capability)
  • Convex collision tests: 530,000 per second (maximum capability)
  • Peak Instruction Bandwidth: 20 billion per second
  • Peak Power Consumption: 30 W
  • Fabrication Process: 130 nm
  • Price: Between $100–250 in the USA, £75–145 (inc VAT) in the UK

Title support

There are many titles that use the PhysX SDK, but not all include support for PhysX hardware and instead only support Nvidia based GPUs.[17][18]

Games

The following games feature PhysX support (list may be incomplete):[19]

Other software

See also

References

  1. ^ NVIDIA Corporation (2008-02-13). "NVIDIA completes Acquisition of AGEIA Technologies". Press release. http://www.nvidia.com/object/io_1202895129984.html. Retrieved 2009-03-18.  
  2. ^ http://www.gamasutra.com/php-bin/news_index.php?story=22812
  3. ^ Sony Computer Entertainment, Inc. (2005-07-21). "Sony Computer Entertainment Enters Into Strategic Licensing Agreement With AGEIA" (PDF). Press release. http://www.scei.co.jp/corporate/release/pdf/050721be.pdf. Retrieved 2006-08-23.  
  4. ^ "Playstation 3 gets free PhysX from Nvidia". Kotaku. http://kotaku.com/5172843/playstation-3-gets-free-physx-from-nvidia.  
  5. ^ http://www.nvidia.com/object/nvidia_physx.html
  6. ^ http://developer.nvidia.com/object/physx.html
  7. ^ "PhysX For CUDA, Linux Support A Given?". Phoronix. Phoronix Media. 2008-02-14. http://www.phoronix.com/scan.php?page=news_item&px=NjMzNA. Retrieved 2008-02-14.  
  8. ^ Shilov, Anton (2007-11-19). "GPU Physics Dead for Now, Says AMD’s Developer Relations Chief". Xbit Laboratories. http://www.xbitlabs.com/news/multimedia/display/20071119065621_GPU_Physics_Dead_for_Now_Says_AMD_s_Developer_Relations_Chief.html. Retrieved 2007-11-26.  
  9. ^ "GeForce Power Pack". Nvidia Corporation. http://www.nvidia.com/content/forcewithin/us/download.asp.  
  10. ^ a b http://physxinfo.com/news/330/official-nvidia-position-on-hybrid-ati-nv-physx-configurations/
  11. ^ http://www.nvidia.com/object/physx_faq.html
  12. ^ http://www.nvidia.com/object/physx_faq.html
  13. ^ http://www.ngohq.com/graphic-cards/16223-nvidia-disables-physx-when-ati-card-is-present.html
  14. ^ http://www.ngohq.com/news/16560-patch-re-enables-physx-when-ati-card-is-present.html
  15. ^ "PhysX FAQ". NVIDIA Corporation. http://www.nvidia.com/object/physx_faq.html.  
  16. ^ Legit Reviews - ASUS's AGEIA PhysX P1 Card
  17. ^ "The Unofficial AGEIA PhysX Links & Info Page". 2008-10-21. http://personal.inet.fi/atk/kjh2348fs/physx.html.  
  18. ^ "Physx games, list, links, comments". HardForum. Jelsoft Enterprises. 2007-01-08. http://hardforum.com/showthread.php?t=1141844.  
  19. ^ "PhysX Games List". nZone. Nvidia Corporation. http://www.nzone.com/object/nzone_physxgames_home.html.  
  20. ^ Gardner, Ross (2009-06-24). "statement on official forum". official DAO forum. http://daforums.bioware.com/viewdevposts.html?topic=682884&forum=135. Retrieved 2009-07-02.  
  21. ^ "Astragon: Kran Simulator 2009 (German)". http://www.astragon.de/product_info.php?cPath=33&products_id=233.  
  22. ^ "AGEIA Joins Futuremark's 3DMark Benchmark Development Program". FindArticles. BusinessWire (CBS Interactive). 2006-09-27. http://findarticles.com/p/articles/mi_m0EIN/is_2006_Sept_27/ai_n16836909. Retrieved 2008-11-03.  
  23. ^ The Game Creators (2006-03-22). "The Game Creators Integrate AGEIA PhysX Technology into DarkBASIC Professional". Press release. http://www.gamedev.net/community/forums/topic.asp?topic_id=382741. Retrieved 2006-09-23.  
  24. ^ "Overview". DX Studio. Worldweaver. http://www.dxstudio.com/features.aspx. Retrieved 2008-11-02.  
  25. ^ Alexander, Leigh (2008-08-19). "Emergent, Nvidia Integrate PhysX Into Gamebryo". Gamasutra. Think Services. http://www.gamasutra.com/php-bin/news_index.php?story=19919. Retrieved 2008-11-05.  
  26. ^ Dobson, Jason (2007-06-18). "Emergent Adds DX10, PhysX To Gamebryo". Gamasutra. Think Services. http://www.gamasutra.com/php-bin/news_index.php?story=14360. Retrieved 2008-11-05.  
  27. ^ "NxOgre". Ogre Wiki. http://www.ogre3d.org/wiki/index.php/NxOgre. Retrieved 2007-09-14.  
  28. ^ Boeing, Adrian. "Engines". Physics Abstraction Layer. http://www.adrianboeing.com/pal/engines.html. Retrieved 2007-11-18.  
  29. ^ "Simulation Overview". Microsoft Robotics Developer Center. Microsoft. http://msdn2.microsoft.com/en-us/library/bb483076.aspx.  
  30. ^ "Unity Features". Unity Technologies. http://unity3d.com/unity/features/. Retrieved 2008-11-03.  
  31. ^ "The Unreal Physics system". Epic Games. http://www.unrealtechnology.com/features.php?ref=physics. Retrieved 2008-11-02.  

External links


Strategy wiki

Up to date as of January 23, 2010
(Redirected to Category:PhysX article)

From StrategyWiki, the free strategy guide and walkthrough wiki

PhysX is a proprietary realtime physics engine middleware SDK originally developed by Ageia (acquired by Nvidia in February 2008) as the NovodeX SDK. Games supporting hardware acceleration by PhysX can be accelerated by either a PhysX PPU or a CUDA-enabled GeForce GPU, thus offloading physics calculations from the CPU, allowing it to perform other tasks instead - potentially resulting in a smoother gaming experience.

The PhysX engine and SDK are available for the following:

Nvidia provides both the engine and SDK for free to Windows and Linux users and developers. The PlayStation 3 SDK is also freely available due to Sony's blanket purchase agreement.

Pages in category "PhysX"

The following 2 pages are in this category, out of 2 total.

N

  • NiGHTS: Journey of Dreams

S


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