Pixels/aa

[IsildursCrow]

Okay.. So when you turn off Anti aliasing, everything gets..

"fizzy" if you know what I mean by this, the rest should make sense.

 

Regardless of whether I turn on AA+ related settings to max in CCC, or tick "use application settings" and use fallout graphics settings I'm getting a fizzy lod/bushes ~ grass.

 

What gives. My settings are cranked, system can handle it.

Put a radeon 4650 in to see if it would do the same, but no it was clear as day no fizzy but only 5-8 fps vs. 48-55 with my hd4850 1gb ati, stock clocks 625mhz\1008mhz 800 shader cores, but things are fizzy as if aa is on 2x not 8x..

In ccc adaptive aa on or off makes no difference... Is it my card going? Or is this normal?

 

Video: http://s1244.photobucket.com/albums/gg571/Ian_Montgomery/?action=view&current=2012-03-02_00-12-44_585.mp4

Edited March 2, 2012 by IsildursCrow

[GrindedStone]

In Fallout 3 some assets of the multisample type will turn to "fizzy" below a certian level of anisotropic filtering (texture filtering). For example the default of 8X AF is good for about 25+ feet of high detail an 50+ feet of medium detail. Pretty much anything above 8X is dealing directly with detail beyond the general area of the player, however there are also profile settings for texture filtering you can set for performance or quality, allowing a lot of wiggle room.

 

AA depends more on the native screen resolution of your monitor. If you got enough pixels you don't even need AA. However most players will set the screen resolution to lower than native, for example a step down in size. This allows smoother animation & physics, more chaos in combat, and also the ability to run more post processing effects than they would have in native. Getting better performance and higher detail at the same time.

 

For AF (texture filtering) you should at least use the 8X default settings. Pay attention to the painted stripes on the roads as you walk. Also the grass an player's hair, the shaved head for example. These are the directly poopy looking assets. For AA look at a pool table an use the amount of AA it takes to make it not look horid basicly. You can also trade off HDR/Bloom for other areas of detail, because for the performance cost of HDR/Bloom it adds very little.