Aa & Af ?? 6 replies

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#1 12 years ago

I was just wondering what are they i no what they stand for... i think AA - Anti Aliasing AF - Antriscopic Filtering

But i was just wondering what they do, how do they enhance a game a what difference the settings of them do (2x, 4x, 8x etc)... Thanks

[COLOR=Blue]*waits for Rookie_42 or Agentlaidlaw*[/COLOR]




Pethegreat VIP Member

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#2 12 years ago

JakkcI was just wondering what are they i no what they stand for... i think AA - Anti Aliasing AF - Antriscopic Filtering

But i was just wondering what they do, how do they enhance a game a what difference the settings of them do (2x, 4x, 8x etc)... Thanks

[COLOR=Blue]*waits for Rookie_42 or Agentlaidlaw*[/COLOR]

Well I will help you:p

AA smoothes out jagged edges by rendering a frame multiple times. AA is a performance killer since the frame is rendered multiple times. The high the setting, the smoother it is and the bigger the hit on FPS

AF smooths out textures are long distances but I am not sure how though. Same as AA for settings and performance.




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#3 12 years ago

What so AF was what was missing out of GTA San Andreas on the PS2 :o and thanks Pethegreat ;)




MrFancypants Forum Admin

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#4 12 years ago

JakkcI was just wondering what are they i no what they stand for... i think AA - Anti Aliasing AF - Antriscopic Filtering

But i was just wondering what they do, how do they enhance a game a what difference the settings of them do (2x, 4x, 8x etc)... Thanks

[COLOR=Blue]*waits for Rookie_42 or Agentlaidlaw*[/COLOR]

It might be also interesting to know that anti aliasing uses more and more resources while returning less and less better quality. So while the difference between no AA and 2x AA is clearly visible and doesn't slow your PC down too much the difference between 4xAA and 8xAA is rather difficult to detect while it uses a lot of resources. Of course, if you have a very fast PC, you can just turn it to a high level regardless.




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#5 12 years ago

JakkcI was just wondering what are they i no what they stand for... i think AA - Anti Aliasing AF - Antriscopic Filtering

But i was just wondering what they do, how do they enhance a game a what difference the settings of them do (2x, 4x, 8x etc)... Thanks

[COLOR=Blue]*waits for Rookie_42 or Agentlaidlaw*[/COLOR]

Dashes to the rescue in the nick of time! :p

[COLOR=Red]Anti-Aliasing:[/COLOR] Basically it smoothes the edges of objects seen in-game, by replacing the sharp color changes at the edges of objects with intermediate tones. Say you had a semi-intricate blue box rotating in a red background. With standard rendering the edges would render thus:

Blue -> Red

With anti-aliasing, the contrast between the colors is reduced by introducing an intermediate color. Hence, with AA enabled, the same scene would render thus:

Blue -> Purple -> Red

This gives the illusion of smooth edges, and is a popular feature in today's games. Of course, as Pethegreat pointed out, this means the frame will have to be rendered multiple times, and so it will slow down performance.

[COLOR=Red]Anisotropic filtering:[/COLOR] This corrects the projection errors often seen on texels that are angled away from the viewer. It also works to prevent aliasing effects, but causes less blur than anti-aliasing will. It does require quite a bit of processing power though, so you'll need a half-decent GPU for starters.




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#6 12 years ago

Would i be able to max out both on a 7800GT, 3500+ and 1GB Ram :o :p

And Thanks To All For Your Help




Σl.Ðestructo

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#7 12 years ago
Would i be able to max out both on a 7800GT, 3500+ and 1GB Ram

I would EXPECT it, but AA has a way of killing almost everything, and notice how benchmarks never use the max possible settings?

AF is fine to max, I have a 9600Pro and it goes good at 16x, but I think AA at 8x or 16x is a major performance killer, hence they never use it in benchmarking - it just shows the GPUs' crap side.