R500 (Xbox 360 VPU)

[sisi]

pristup, kdy si vsechna data sceny ulozim do display listu (seznamu) a pak teprve provadim operace, jako treba reseni viditelnosti ...

Toto je imho vcelku jasna & jednoducha definicia deferred renderingu. Nic viac za tym netreba hladat. Skratka sa caka na moment, kedy je znama kompletna geometria sceny - samotny ("pixel")rendering je dovtedy oddialeny (= deferred). Co sa stane v momente, kedy je tato informacia k dispozicii, zavisi uz na konkretnej architekture (predsortovanie polygonov podla hlbky, ich zadelovanie do tiles, atd...).

[no-X]

[no-X]

Screenshoty z Xbox360 - R500



Další tady:
http://www.bizarreonline.net/index.p...mments=1&id=32
http://www.bit-tech.net/news/2005/07...r3_screenshots

[Semik]

Tak konkretne tento screen je upravovany ...potvrdili to sami vyrobci. tie fasady domov su real.

[no-X]

Link?

[no-X]

http://www.theinq.net/?article=25197

[no-X]

XBOX 360 to be Carmacks Primary Development Platform

id Software's John Carmack has often commented that his engines target a particular feature set of a graphics board and he uses a certain boards for his primary development; for instance the Doom3 engine was initially targeted towards the features enabled by the GeForce 256 series of graphics processors, but overtime that was incremented to DirectX8 and 9 level boards, with NVIDIA's 5800 (NV30) being his primary development platform for a while. What has always been clear is that the PC, and the capabilities of PC graphics, was id's primary target market and development platform. From John's keynote speech, transcribed here by Beyond3D forum member aaaaa00, it would appear that this is likely to change, in the interim at least:

In the last couple weeks I actually have started working on an XBOX 360. Most of the upcoming graphics development work will be starting on that initially. It’s worth going into the reasons for that decision on there. To be clear, the PC platform will be released at least at the same time if not earlier than any of the consoles but we are putting a good deal more effort towards making sure that the development process goes smoothly onto them.

Beyond3D

[Q]

docela by me zajimalo, jak si xenos vede oproti dnesni generaci GPU a jestli dokaze jeste neco do budoucna nabidnout tj. jestli se bude graficky vzhled dnesnich her na X360 jeste nejak vyrazne vylepsovat ci jiz narazi na sve limity...

[Haste]

docela by me zajimalo, jak si xenos vede oproti dnesni generaci GPU a jestli dokaze jeste neco do budoucna nabidnout tj. jestli se bude graficky vzhled dnesnich her na X360 jeste nejak vyrazne vylepsovat ci jiz narazi na sve limity...

Na sve limity narazi a vzdy narazel. Optimalizovat musis i na nejrychlejsi existujici system. Tady ale narazime na 2 zasadni otazky. Grafika jako takova a technologie jako jeji prostrednik.

Pokud myslis vzhled her na X360 z hlediska hrace, potom se jiste dockame jeste hodne zajimavych her, ktere budou vypadat opravdu fantasticky a lepe i nez hry na PC s 8800Ultra ve SLI.

Co se ale tyce primo rychlosti a vypocetniho potencialu Xenosu, potom (kdyz nepocitam FSAA) jej PC grafiky uz davno predbehly.

Proc to rozdeluju? Protoze herni grafika zdaleka neni jenom o rychlosti hardwaru, ale predevsim o programovatelnosti. Jinymi slovy, kazdy efekt se da udelat rychle i pomalu, pricemz vizualni vysledek je temer totozny a na pohled faktasticka grafika nemusi byt vzdy pocitana tak, jak by se na prvni pohled zdalo Jde tady predevsim o duvtip vyvojaru/designeru a cit pro optimalizace. Vetsi problem je spis ve velikosti pameti, ale to je obecny problem vsech konzoli...

[no-X]

Xenos je při stejné frekvenci s desktopovými produkty výkonnostně mezi R520 (X1800XT) a R580 (X1900XT). Jak zmínil Haste, vše grafické "navíc" oproti desktopu pramení z optimalziací a flexibility čipu.

[Q]

nevim jak moc se na vykonosti podili EDRAM, ale vcetne ni by mohl byt v urcitych operacich jiste velmi vykony...nicmene mohu potvrdit, ze takova filtrace textur u vetsiny her zatim rozhodne neni nijak vysoka, coz sem cekal, ze bude lepsi...