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Ambient Occlusion QuestionFollow

#1 Apr 19 2011 at 3:47 AM Rating: Good
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{Hello!}

I have a question for you today and i hope i will get detailed, understandable explanation.

Everywhere where i look i hear that Ambient Occlusion is bugged etc.

Where I can agree that it slows down the game pretty badly i don't understand where did that come from. Once I've turned it On, of cores the game started running like a sh*** with it, but it looked pretty badass good so I'm a bit confused? People do tell it's bugged because it slow downs the game to much?

Please explain to me where did that opinion came from, what is bugged with AO.
#2 Apr 19 2011 at 4:07 AM Rating: Excellent
Sage
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1,246 posts
When AO is turned on, it asks your graphics card to calculate literally billions of possible ambient lighting reflections. Including how much a surface should be lit up, depending on the source of light, where the source of light comes from, and how the objects around it effect that.

In FFXIV it is bugged because its universal. The WHOLE game is processed with it on. Now think of the amount of objects in the game, and how much the light varies. It has to process an obscene amount of data, that even the highest of graphics cards would struggle to keep up with. Whereas in newer games its optmized to be used only where necessary.
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#3 Apr 19 2011 at 4:41 AM Rating: Good
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141 posts
ditx wrote:
When AO is turned on, it asks your graphics card to calculate literally billions of possible ambient lighting reflections. Including how much a surface should be lit up, depending on the source of light, where the source of light comes from, and how the objects around it effect that.

In FFXIV it is bugged because its universal. The WHOLE game is processed with it on. Now think of the amount of objects in the game, and how much the light varies. It has to process an obscene amount of data, that even the highest of graphics cards would struggle to keep up with. Whereas in newer games its optmized to be used only where necessary.

Oh now i get it (^.^) Thanks for your time and detailed explanation :3 Yeah SE really need to do something with that later when they will be optimizing the client, as you wrote it, it literally could blow your GPU away into pieces (O o)

PS: This is for the people that voted my question down... thanks for showing me on what level you are people (^ ^)
#4 Apr 19 2011 at 4:54 PM Rating: Decent
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1,004 posts
out of curiosity would 2 crossfired hd 6970's be able to handle that? ill be getting them sometime this week.
#5 Apr 19 2011 at 4:57 PM Rating: Good
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395 posts
Nope.

I'm using two GTX 480s in SLI, which is over 3 gig of GPU ram and I still wouldn't leave it on.

Yeah, it'll work, but you're giving up 10-20 FPS for it.
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#6 Apr 19 2011 at 6:27 PM Rating: Good
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200 posts
There also used to be a memory leak in it...perhaps there still is, don't use it anymore. the last time i did FPS would contentiously drop until it eventually crashed. in XP the computer would hang. in Vista/7 the WDDM error would kick in.

Perhaps that's what there referring to as the Bug, whether it still exists or not i couldn't say.
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#7 Apr 19 2011 at 6:31 PM Rating: Default
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Eadieni wrote:
Nope.

I'm using two GTX 480s in SLI, which is over 3 gig of GPU ram and I still wouldn't leave it on.

Yeah, it'll work, but you're giving up 10-20 FPS for it.


not trying to be an asshat, but it would be more appropriate to state it has 2x 1.5GB's of ram.
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