RegisterHomeNewsForumsArticlesDownloadsSearchContact usChat
Already a member? Sign in.


[ Home / Forums / News ]  
Nvidia Researching Subpixel Reconstruction Antialiasing
Old 28 January 2011, 18:20   #1
Site Staff

Posts: 12,441
CPU: Intel Core i7-965
GPU: GeForce GTX 560 Ti
M/B: Intel DX58SO
RAM: 6GB of A-DATA
PSU: X-Spice 630w
It seems that Nvidia is researching a new antialiasing technology to compete with AMD's MLAA (Morphological Anti-Aliasing). Nvidia has published the following abstract from its research: "Subpixel Reconstruction Antialiasing (SRAA) combines single-pixel (1x) shading with subpixel visibility to create antialiased images without increasing the shading cost. SRAA targets deferred-shading renderers, which cannot use multisample antialiasing. SRAA operates as a post-process on a rendered image with superresolution depth and normal buffers, so it can be incorporated into an existing renderer without modifying the shaders.

In this way SRAA resembles Morphological Antialiasing (MLAA), but the new algorithm can better respect geometric boundaries and has fixed runtime independent of scene and image complexity. SRAA benefits shading-bound applications. For example, our implementation evaluates SRAA in 1.8 ms (1280x720) to yield antialiasing quality comparable to 4-16x shading. Thus SRAA would produce a net speedup over supersampling for applications that spend 1 ms or more on shading; for comparison, most modern games spend 5-10 ms shading. We also describe simplifications that increase performance by reducing quality."
Regeneration is online now  
  
Reply With Quote
Old 29 January 2011, 01:55   #2
Professional Member
 

Posts: 331
CPU: Core i7-3770K w/H100i
GPU: G-B GTX670OC @SLI
M/B: Asus Sabertooth Z77
RAM: Patriot 1866mhz 2x8GB
PSU: Corsair TX850W
Nice, I love MLAA on my HD5870, now I can enjoy deferred rendered games with AA on my Nvidia cards as well, soon, hopefully?
__________________
DeskTop3770K//Asus GTX780//16GB Patriot//Asus Sabertooth Z77//Soundblaster Z//FD Define XL R2 Black//Corsair H110//SSDx3//Corsair TX850W//Philips 27" LCD//Win 8.1 Preview x64//etc.
LapTopClevo P170SM (PC-Konsulten)//4700MQ//GTX780M//16GB Crucial//SB MBIII//Samsung 840//PNY SSD//Seagate 1TB//1xADATA mSata 64GB (OS)//Coolermaster U3//
HaZe303 is offline   Reply With Quote
Old 29 January 2011, 04:29   #3
Wielder of Lionheart
 

Posts: 3,349
CPU: Intel i7 920 @ 3.8
GPU: Geforce GTX 680+ 4GB
M/B: Asus Rampage II Gene
RAM: 12GB Corsair Vengeance
PSU: Corsair HX-620
Send a message via ICQ to squall_leonhart Send a message via MSN to squall_leonhart Send a message via Yahoo to squall_leonhart
the entire problem with AMD's MLAA is the lack of subpixel processing.
__________________
squall_leonhart is offline   Reply With Quote
Old 29 January 2011, 04:33   #4
Wielder of Lionheart
 

Posts: 3,349
CPU: Intel i7 920 @ 3.8
GPU: Geforce GTX 680+ 4GB
M/B: Asus Rampage II Gene
RAM: 12GB Corsair Vengeance
PSU: Corsair HX-620
Send a message via ICQ to squall_leonhart Send a message via MSN to squall_leonhart Send a message via Yahoo to squall_leonhart
hey Reg, mind replying to overthebelow(<<<<<this is a link btw) and telling him that his precious radeon's MLAA doesn't even do subpixel reads, which results in a loss of quality
__________________
squall_leonhart is offline   Reply With Quote
Old 29 January 2011, 08:13   #5
Professional Member

Posts: 355
CPU: Ath II X3 450
GPU: HD4670
M/B: 870iCafe R2.0
RAM: Corsair XMS3 2x4GB
PSU: Chieftec GPS 450-101AA
@squall - and Intel original implementation did subpixel processing? :>
Promilus is offline   Reply With Quote
Old 29 January 2011, 09:36   #6
Site Staff

Posts: 12,441
CPU: Intel Core i7-965
GPU: GeForce GTX 560 Ti
M/B: Intel DX58SO
RAM: 6GB of A-DATA
PSU: X-Spice 630w
@squall_leonhart

The entire problem with AMD's MLAA is the lack of Catalyst's per application profile system.
Regeneration is online now   Reply With Quote
Old 29 January 2011, 15:51   #7
Wielder of Lionheart
 

Posts: 3,349
CPU: Intel i7 920 @ 3.8
GPU: Geforce GTX 680+ 4GB
M/B: Asus Rampage II Gene
RAM: 12GB Corsair Vengeance
PSU: Corsair HX-620
Send a message via ICQ to squall_leonhart Send a message via MSN to squall_leonhart Send a message via Yahoo to squall_leonhart
thats a secondary issue. the primary one is the inability to process subpixel information, gain depth information and use it to apply mlaa as it is needed.
__________________
squall_leonhart is offline   Reply With Quote
Reply


Thread Tools
Rate This Thread
Rate This Thread:

Tags
anti-aliasing, nvidia






All times displayed in UTC
Powered by vBulletin from vBulletin Solutions, Inc.


User Agent   Copyright 2014 NGOHQ.com - All Rights Reserved   Disclaimer