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Is SSAO not an essentially worthless feature that just uses more processing power?

post #1 of 10
Thread Starter 
I've looked at hundreds of screenshots of games with SSAO on and off, tried it myself in games, and I really can't say I notice a significant difference. Surely nothing you'd notice in most games, being too focused on a story or FPS action. I don't see why this feature exists; AFAIK it's pretty taxing to the GPU, so you're just throwing away FPS for fun essentially. Am I crazy or do other people agree that there's no reason to have it enabled unless you're absolutely locked at max FPS regardless of whether it's on/off? I guess this could be a bad place to ask, GPU freaks will defend every tiny feature to death and say their 40-way SLI 1080s handle it just fine, just like if I asked if $500 headphones are necessary in hi-fi they'd get mad at me.
Edited by TheHorse - 9/18/16 at 11:32am
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post #2 of 10
SSAO itself is not very accurate and not worth the extra processing power it demands.

HBAO+ is the complete opposite. Looks great and is completely worth the hit to FPS (if you care about visuals).

I do notice the difference if AO is turned off in games, as AO gives depth and increased detail to a scene, especially if the lighting is indirect or muted.
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post #3 of 10
Looks great to me. Obviously not worth it in a competitive multiplayer game(if you need the boost).
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post #4 of 10
Very much just depends on the game and the scene.

Do you care about having more shadows on objects?

Yes? SSAO (however implemented) is good.

No? Then it is an unnecessary performance hit.

NO SSAO:


SSAO ON:



HBAO+:


VXAO:


https://www.computerbase.de/2016-03/rise-of-the-tomb-raider-directx-12-benchmark/3/

3-4% perf hit for SSAO on, so not much and does change the scene a lot.

HBAO+ is another 4-5% perf hit, so now at 7-10% perf hit.

VXAO is a huge perf hit for no real IQ gain. So stick with HBAO+ or just basic SSAO depending on how its implemented in the game.









So its a huge perf hit (at least on these older cards) in Deus Ex, while "ON" has very little performance hit in ROTTR.

http://www.hardocp.com/article/2011/09/12/deus_ex_human_revolution_gameplay_performance_review/10

So better methods to do the effect have come into play with more recent titles, but it has always made the scene look better and added depth to otherwise "flat" objects.
post #5 of 10
Thread Starter 
Really honestly don't see a difference, and my vision is 20/15 so don't try saying I have bad eyesight lol. I mean yes I can see shadows of like cords and in corners a little bit in the close ups... but really how much are you staring at small specific objects as you run around an FPS lol. It's like the people that put $5000 audio systems in their cars. You really can't hear the difference between lossless and 320k mp3s on a mid range stereo in a loud car, just like you're not going to notice an extension cord with an extra shadow in an FPS. MAYBE an RPG...
Edited by TheHorse - 9/21/16 at 3:07pm
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post #6 of 10
I agree most of these filtering features don't add much, I also have 20/15. Resolution and texture quality is king for image quality. I guess if you are into screen shotting stuff it might make more of a difference but when it comes to gameplay, high frame rate and a good resolution is the most important IMO.
    
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post #7 of 10
You guys say you have great vision, but come on, its super simple to see the differences.

http://screenshotcomparison.com/comparison/185301

Those are the [H] pictures split up and on mouse over it will show the SSAO version. If you can see the huge difference the shadows make...
post #8 of 10
Thread Starter 
Quote:
Originally Posted by DracoNB View Post

You guys say you have great vision, but come on, its super simple to see the differences.

http://screenshotcomparison.com/comparison/185301

Those are the [H] pictures split up and on mouse over it will show the SSAO version. If you can see the huge difference the shadows make...

Again, I said I can see some little (in this case highly unrealistic) shadows on objects, things you wouldn't really notice running around an FPS, unless you're just slowly walking around so you can pleasure yourself to the minuscule differences such a performance-robbing feature adds.
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post #9 of 10
Quote:
Originally Posted by TheHorse View Post

Really honestly don't see a difference, and my vision is 20/15 so don't try saying I have bad eyesight lol. I mean yes I can see shadows of like cords and in corners a little bit in the close ups... but really how much are you staring at small specific objects as you run around an FPS lol. It's like the people that put $5000 audio systems in their cars. You really can't hear the difference between lossless and 320k mp3s on a mid range stereo in a loud car, just like you're not going to notice an extension cord with an extra shadow in an FPS. MAYBE an RPG...
I can easily spot the difference in the shadows. And even in a fast paced environment, it would be the difference between playing something like 007 golden eye, and whatever the next next-gen title was.
While the differences may not be glaringly obvious, especially in a fps, it is enough to add more depth and feel to the game. You may not consciously notice it off the bat, but it's there, and adds immersion nonetheless.
And, in the stereo analogy, it really depends on the music you listen to. Myself, on a pair of $140 M-audio speakers, could hear things in songs I didn't hear on my home theater system, granted they were subtle nuances, but really added to the songs. My main music is more "electronic/industrial" (system syn, imperative reaction, suicide commando, tactical sekt, etc), abbr much more complex than most mainstream music. For example, without a true stereo experience, a lot of the sounds are missing, whereas this is not the case with something like bon jovi.
So, in both instances, the effect is perceived based upon the users setup and equipment. Someone with a 1080p monitor, who still needs to turn down settings to achieve a decent frame rate, would likely not notice these finer details that are present at maximum settings.
I could easily see a big difference between the first two out of three screenshots (Where there were three of the sane images side by side, comparing settings), but less of a difference between images 2 and 3. The first image having no shadowing, and the second having shadowing is plain as day.
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post #10 of 10
Quote:
Originally Posted by JTHMfreak View Post

I can easily spot the difference in the shadows. And even in a fast paced environment, it would be the difference between playing something like 007 golden eye, and whatever the next next-gen title was.
While the differences may not be glaringly obvious, especially in a fps, it is enough to add more depth and feel to the game. You may not consciously notice it off the bat, but it's there, and adds immersion nonetheless.
And, in the stereo analogy, it really depends on the music you listen to. Myself, on a pair of $140 M-audio speakers, could hear things in songs I didn't hear on my home theater system, granted they were subtle nuances, but really added to the songs. My main music is more "electronic/industrial" (system syn, imperative reaction, suicide commando, tactical sekt, etc), abbr much more complex than most mainstream music. For example, without a true stereo experience, a lot of the sounds are missing, whereas this is not the case with something like bon jovi.
So, in both instances, the effect is perceived based upon the users setup and equipment. Someone with a 1080p monitor, who still needs to turn down settings to achieve a decent frame rate, would likely not notice these finer details that are present at maximum settings.
I could easily see a big difference between the first two out of three screenshots (Where there were three of the sane images side by side, comparing settings), but less of a difference between images 2 and 3. The first image having no shadowing, and the second having shadowing is plain as day.

If I want pretty realistic immersive environments I just go outside. thumb.gif Yeah I can spot the difference too, but that difference isn't worth a frame rate drop to me.
    
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