Jelikož je na internetu celkem dost informací a ostatní vlákna v ATi sekci jsou zbytečně zahlcena diskuzí na toto téma, rozhodl jsem se pro založení nového threadu. Pro nezasvěcené připomenu, že se jedná o port nvidia PhysX a CUDA Runtime na karty ATi Radeon (série HD3xxx, v budoucnu možná i HD2xxx/4xxx)
Vše začal Eran Badit (Regeneration) z NGOHQ.com, který 26.6.2008 zveřejnil informaci, že se mu podařilo pomocí upraveného CUDA rozhraní "rozchodit" nvidia PhysX na Radeonu HD3850 a přiložil screenshot s vynikajícím výsledkem z 3Dmarku Vantage (všimněte si CPU score).
Screenshot v plné velikosti
NGOHQ PhysX GPU Acceleration on Radeon HD 3850: http://www.ngohq.com/news/14219-physx-g ... 850-a.html
Po zveřejnění této novinky se okamžitě vynořily ohlasy, které označily screenshot za FAKE a to kvůli tomu, že CUDA není na kartách ATi podporována a rozdílu mezi dialogovými okny nastavení PhysX (vlevo originální PhysX, vpravo výběr ze screenshotu)

Eran toto tvrzení dementoval větou, že CUDA sama o sobě není nic složitého neboť je založena na C (Programovací jazyk) a port není tak nemožný jak si jiní myslí.
Také se začalo spekulovat o legálnosti vyvíjeného softwaru kvůli samotnému PhysX rozhraní (CUDA je Open SDK), které je po odkoupení Ageii firmou nvidia jejím duševním vlastnictvím. K tomu Eran poznamenal toto:Regeneration píše:To everyone who claims this is fake/hoax, our software uses CUDA and It is intuitive to use because it is basically C. This task isn’t impossible as you think. If you’re visiting NGOHQ.com often, then you should know I’m a man of honor (without any image manipulation skills - never been an artist).
Dále uvedu několik odpovědí/novinek, které Eran postnul do diskuze pod vlastním "článkem":Regeneration píše:I don’t see any legal problem with what are doing since CUDA and PhysX are free and we are using our code. However, I haven’t received any “green light” from our attorney yet to distribute it.
Dne 30.6. byl Eranem a NGOHQ spuštěn Beta Test ProgramRegeneration dne 29.6. píše:• The software is still under development, there are a few issues that need to be addressed. During the weekend, I ran it on UT3 but its not working perfectly. However, after testing the game with a 8800GT, it seems that everything is fine on our side and the problem lies in UT3’s side.
• At this stage, I don’t know which GPUs will be supported. I don’t even know if we will release as a stand-alone application or bundled with our NGO ATI Optimized Driver. Hell, I don’t even know if it will be released at all...
• The decision not to support HD 4800 series is political. Don’t get me wrong, I’m a nice guy and I’d like to reward our users. However, even nice guys like me have websites to run. We have tried to obtain HD 4800 cards - but availability is too poor in our region. Anyway, every time a manufacturer launches a new product, he’s providing the press with some review samples. Most of the times, we just borrow it for a week or two, we don't care about it.
• Manufacturers aren’t providing us with any option to purchase cards and it’s impossible to find it in stores before the official launch. Recently, some manufacturers like AMD are providing 3-5 sites with ten samples and leaving the others in the dark. Therefore, we are forced to play these political games to keep our site alive. As Joe Pesci once said, running a terrorist’s organization isn’t cheap these days. You have to understand that these samples are like bread and water for us.
Dne 3.7. se na main page serveru NGOHQ.com objevil tento update. Asi nejzajímavější na tomto je, že nvidia začala na celém projektu spolupracovat s Eranem/NGOHQ:Regeneration dne 1.7. píše:Hi Guys,
We received all your applications to the beta program. You will be notified as soon as a beta is available. We were very pleased to see so many applications.
At this stage, we are in dialogs with Nvidia, AMD and some of their partners regarding this project. We are trying to address the HD 4800 access issue due to the large numbers of complains by users. In addition, for unknown interests Nvidia wants us to remove ForceWare from our site. They claim it’s because they want to protect their IP but since so many websites are allowed to host ForceWare, I doubt it.
As soon as we receive new information, we will update you here or in the front page. You should know that I'm doing my best on this project.
Cheers
PhysX GPU Acceleration on Radeon Update: http://www.ngohq.com/news/14254-physx-g ... pdate.htmlRegeneration dne 3.7. píše:I would like to update you about what’s going on. First, we were very pleased to see so many users and readers have applied to our Beta Test Program! To be specific: 191 users, 5 spies and 2 double agents have submitted applications during the last week. Those that will be chosen will be informed early before the beta is available – we can’t still point to “when” at this stage.
The bad news is we still don’t have access to any HD 4800 hardware yet. It is very important for this project to receive AMD’s support on both developer and PR levels. It seems that AMD still is not being cooperative, we get the feeling that they want this project to fail. Perhaps their plans are to strangle PhysX since AMD and Intel have Havok. We truly hope this is not the case since “format wars” are really bad for the consumers (For example: Blu-ray vs. HD-DVD).
Before we get to the good news, I’m going to ask you to hold on to something steady as some of you are going to feel a bit dizzy after you hear this. The truth is… Nvidia is now helping us with the project and it seems they are giving us their blessings. It’s very impressive, inspiring and motivating to see Nvidia's view on this. Why they help us? My best guess would be: They probably want to take on Intel with CUDA and to deal with the latest Havok threat from both AMD and Intel.
Some other good news, we are getting a lot of help from cool journalists like Theo Valich to address the HD 4800 access issue. I can confirm that our CUDA Radeon library is almost done and everything is going as planned on this side. There are some issues that need to be addressed, since adding Radeon support in CUDA isn’t a big deal - but it’s not enough! We also need to add CUDA support on AMD’s driver level and its being addressed as we speak.
Na toto navazuje dnešní (8.7.2008) novinka o tom, že Eran Badit byl přizván do NVIDIA Developer programu
A vyjádření zástupců nvidie:TechPowerUp.com píše:...Once feared by many for aggressively defending its intellectual property, NVIDIA seems to have changed its approach towards things. In a bid to popularize their technology, it is willing to give the ‘PhysX advantage’ to even its competitor, AMD. But it still remains to be seen if PhysX performs on Radeon “the way it’s meant to perform”, now with Eran Badit working in close collaboration with NVIDIA. He says he still awaits samples from AMD so he could devise PhysX drivers for them. Surely NVIDIA has brought in good days for small developers with big aspirations...
Roy Taylor, vice president "vztahů s vývojáři" píše:"„S Eranem jsem v kontaktu e-mailem a nabídli jsme mu, aby se stal registrovaným vývojářem pro CUDA. Těší nás jeho zájem o CUDA a grafickým jádrem akcelerovaný PhysX. Eran rozšířuje početné řady programátorů, kteří pracují na využití GPU pro počítání fyziky a vybral si k tomu nejlepší dostupný software – PhysX."
Zdroje: NGOHQ.com/NGOHQ.com-update/TG Daily.com/TechPowerUp.com/Extrahardware.czDerek Perez, ředitel marketingu a public relations píše:"Pomůžeme každému vývojáři, který používá CUDA. To znamená, že mu poskytneme nástroje, dokumentaci, i přímou pomoc. Jsme rádi, že o CUDA a PhysX je takový zájem, a to včetně novinek na NGOHQ."
//EDIT: provedeno několik grafických úprav



