Multi-frame Sampled AA (MFAA) on Maxwell cards
- Thread starter thilanliyan
- Start date
It would be nice if 2xMFAA alone was possible but this seems to be only working when MSAA is already enabled so 4xMFAA appears to be the minimum?
As suspected in the initial MFAA reveal where the pros/cons are discussed:
"The problem with this ever moving sample pattern is that sometimes you can see it moving if you look closely enough at it in-game. NVIDIA is assuming you are playing the game though, and not actually staring at jaggy lines on the screen. But the fact remains, in high motion, or quick scene changes this kind of effect seems to disappear creating aliasing, the exact thing MFAA is trying to fix."
So it depends on the user, some will not be bothered by aliasing during motion, while others would. I use AA to reduce crawling, shimmering and aliasing artifacts during motion, this would definitely bother me.
"We think the future of AA is in shader based AA like SMAA. Small performance costs, similar to 4X MSAA, and anti-aliasing everything in the frame. We think NVIDIA and AMD both should invest in technologies such as SMAA and improve upon these for games. MFAA to us seems like a step sideways, rather than a step forwards in AA technology."
Also, it's strange to see [H] recommending SMAA over other AA methods, since its a post-AA filter. Why is it that other post-AA filter blur so much but SMAA has minimal blurring but still great AA & performance? It seems to be there's zero downside to SMAA.
"The problem with this ever moving sample pattern is that sometimes you can see it moving if you look closely enough at it in-game. NVIDIA is assuming you are playing the game though, and not actually staring at jaggy lines on the screen. But the fact remains, in high motion, or quick scene changes this kind of effect seems to disappear creating aliasing, the exact thing MFAA is trying to fix."
So it depends on the user, some will not be bothered by aliasing during motion, while others would. I use AA to reduce crawling, shimmering and aliasing artifacts during motion, this would definitely bother me.
"We think the future of AA is in shader based AA like SMAA. Small performance costs, similar to 4X MSAA, and anti-aliasing everything in the frame. We think NVIDIA and AMD both should invest in technologies such as SMAA and improve upon these for games. MFAA to us seems like a step sideways, rather than a step forwards in AA technology."
Also, it's strange to see [H] recommending SMAA over other AA methods, since its a post-AA filter. Why is it that other post-AA filter blur so much but SMAA has minimal blurring but still great AA & performance? It seems to be there's zero downside to SMAA.
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Everything nVidia releases is artificially limited.
That's not adding anything to the discussion.
-Elfear
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In motion it would be 1/2, or revert back to the default MSAA since these temporal sampling is defeated by a moving frame.
Cerb
Elite Member
- Aug 26, 2000
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2xSSAA is not far from actually pushing 4 times the pixels, though.
MSAA with shader AA allows for most jaggies to be gone, with a lower performance hit, by quite a bit.
Cerb
Elite Member
- Aug 26, 2000
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Some games allow FXAA in the CP, some MSAA, any SSAA (some modes require other tools, like Inspector for SGSSAA), and most should work with MFAA, if MSAA works.
I generally try to play with at least 4xMSAA (2xSS for alpha) + FXAA/MLAA ((S)MLAA if the game includes it, but I prefer FXAA, if the devs can't tune it), if I can.
Different games work differently. Some work with override, some require enhanced, some you have to set it in-game, some work with compatibility codes (Inspector, again), often at large penalties, and some just don't work with MSAA at all. That's one of the gotchas of MSAA types.
It works alone, MSAA is replaced by MFAA if the latter option is enabled, it s just that to enable MFAA you must also select MSAA in said CP.
http://www.hardware.fr/focus/104/mfaa-nouveau-mode-antialiasing-geforce.html
I was very surprised at this myself as well, post processing AA is rubbish in my opinion because it's not actually taking additional samples from the scene to increase accuracy, it's simply blurring the entire scene almost as if you've run each frame through some kind of blur filter in photoshop.
It's nice and fast sure, but it's making IQ worse at the expense of bluring out jaggies. I prefer older MSAA which have much better speeds than SSAA and reduced jaggies without the loss of IQ. You can run all the transparency AA on top of this to get accurate foliage and whatnot which isn't too much of a performance hit.
I've been playing FC4 the last few days and it has really great IQ but the lack of decent AA is really irritating me to be honest, I don't want the utter mess that TXAA is, nor do I want some crappy post processing AA, but their MSAA doesn't seem to deal with transparency well which is crazy given the amount of transpartent vegetation in the game.
It's been a while...can transparency AA be forced from the control panel? I can't remember to save my life.
^^^ Same problem here. Even with 4x TXAA the trees shimmer like crazy. Usually TXAA cleans that up very well. But not here. Transparency AA can be enabled in CP but not sure if it works. I'll try when I get home. Some reports suggest TXAA is broken in this game. Normally it works well. Also I noticed that windy scenes make this much worse. They really need to work on the visual representation of trees in the wind at a distance. They need to use some other technique other than what they are currently using. It's just too headache causing as it stands. Otherwise it's a very nice looking game and I can max it out with a 980GTX unlike ACU.
Grooveriding
Diamond Member
- Dec 25, 2008
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TXAA is terrible in FC4 like every other game that has it. Blurs the image to hell and back. I run 2x MSAA because 4xMSAA is too hard on performance in the game, which is weird because it's fine in FC3 and the games are using the same engine.
^^^ for me I'm okay with TXAA even with some blurring. Because nothing fixes shimmering like it. At least for its relatively low performance hit. It works great on AC4 BF and Crysis 3 for me. But in this game nothing stops trees from shimmering. Not even TXAA. I'm guessing DSR at 4k with post process AA might sort it out.
Phynaz
Lifer
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toyota
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