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ATI AA Settings??

toxic

toxic

toxic

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Joined
5 Mar 2006
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2,268
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Scotland
Im using a 4870 with Cat 8.7's and I dont understand the ATI AA driver forfuguration.
Whe forcing AA via the CCC...I can only select up to 8xAA in the 3D settings. How do I get 16x AA or higher????
I play a lot of BF 2142..and when I slect 8xAA in the CCC..I dont get any AA in game. I have to set the AA setting in CCC to 'use application settings'...which will only give me 4xAA...as thats the max you can select in the BF games video options. I used to play at 16xAAA with 8800GTX..and want the same with the 4870.
Any ideas?

Cheers
-Tox
 
ATI does not support 16xMSAA. Use edge detect or wide tent.

but even if they did support it I'm almost willing to bet you can't tell the difference between 8x and 16x
 
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If your gaming at a higher resolution i doubt you even need 16xAA, don't use it just for the sake of it you won't see any difference really. I never use more than 4xAA myself and i don't sit that near my screen.
 
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TheMagic1an said:
If your gaming at a higher resolution i doubt you even need 16xAA, don't use it just for the sake for it you won't see any difference really. I never use more than 4xAA myself and i don't sit that near my screen.
Click to expand...

Resolution does not effect the amount of AA needed. :)
 
This should help explain things:

http://enthusiast.hardocp.com/article.html?art=MTUzMiwxLCxoZW50aHVzaWFzdA==

selecting "use application" and select "edge detect". When selecting 4xaa in BF you will get 12X CFAA.

Of course you then then also select adaptive AA as well in the CCC.

I reckon 12x CFAA will be a match to your old 16xaa (or maybe better). Certainly if you enable adaptive AA as well.

Only with games with a 8xaa selection will you be able to get 24x CFAA unless the force feature works in CCC which you say it doesn't with BF.
 
I may be mistaken but I think that only MSAA uses the ROPs, and that once you start using edge detect and stuff you will begin doing the work on the shaders, which will reduce performance significantly.

mmj_uk said:
Of course it does.

If you take a diagonal line there are considerably more steps to it at higher resolutions so the jaggies are less pronounced, plus the pixels are smaller.
Click to expand...

it depends on the size of the screen as well, not just resolution.
 
The Asgard said:
LOL.

20" 1680x1080
24" 1920x1200

Think about the step size ;)
Click to expand...

On the 24" you've still got more pixels being drawn further smoothening any edges.

Take any single monitor and compare the following resolutions on it:

640*480 (307,200 pixels)
1920*1200 (2,304,000 pixels)

At 1920*1200 there's ~2million more pixels being drawn so of course resolution affects the amount of AA needed, the higher you go the less AA is required as TheMagic1an has said.
 
mmj_uk said:
On the 24" you've still got more pixels being drawn further smoothening any edges.

Take any single monitor and compare the following resolutions on it:

640*480 (307,200 pixels)
1920*1200 (2,304,000 pixels)

At 1920*1200 there's ~2million more pixels being drawn so of course resolution affects the amount of AA needed, the higher you go the less AA is required as TheMagic1an has said.
Click to expand...

Its the size of the pixels that matter so a bigger screen with an overall bigger pixel count that uses the same pixel density will still give you the same jagged straight lines as a smaller lower res panel with the same pixel density but less of them.

I have a 30" 2560x1600 & it does in fact have a higher density than smaller screens as well as more overall pixels & i still use 2xAA-8xAA on it.
 
gurusan said:
I may be mistaken but I think that only MSAA uses the ROPs, and that once you start using edge detect and stuff you will begin doing the work on the shaders, which will reduce performance significantly.
Click to expand...

Yeah but th 4870 has 800 shaders so it can spare a few. ;)
 
mmj_uk said:
On the 24" you've still got more pixels being drawn further smoothening any edges.

Take any single monitor and compare the following resolutions on it:

640*480 (307,200 pixels)
1920*1200 (2,304,000 pixels)

At 1920*1200 there's ~2million more pixels being drawn so of course resolution affects the amount of AA needed, the higher you go the less AA is required as TheMagic1an has said.
Click to expand...

You would be right if the screen size didn't change.
 
Greebo said:
This should help explain things:

http://enthusiast.hardocp.com/article.html?art=MTUzMiwxLCxoZW50aHVzaWFzdA==

selecting "use application" and select "edge detect". When selecting 4xaa in BF you will get 12X CFAA.

Of course you then then also select adaptive AA as well in the CCC.

I reckon 12x CFAA will be a match to your old 16xaa (or maybe better). Certainly if you enable adaptive AA as well.

Only with games with a 8xaa selection will you be able to get 24x CFAA unless the force feature works in CCC which you say it doesn't with BF.
Click to expand...

cheers..thats waht I was looking for.
 
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