Anti Aliasing Treshold

bogy · Mar 22, 2005, 05:33 PM

I got a question about the FSAA settings in the control panel.

What exactly is the TRESHOLD option for?

you can see in this screenie what i'm talking about

Zelig · Mar 22, 2005, 06:54 PM

The threshold option is used in combination when temporal anti-aliasing is enabled. When TAA is enabled, low frames rates can cause flickering. When frame rates fall below the specified threshold, your card will revert to regular AA, thus sacrificing some AA quality but eliminating flickering.

redsolar · Mar 23, 2005, 01:04 PM

I also think it's currently not quite working right as of right now. At least I saw quite a few threads reporting problems with threshold not kicking in when expected or at all.

JimmyT · Mar 25, 2005, 05:31 PM

So if threshold is 32, when your game has 33 fps you have TAA and when it drops to 31fps or less it switches to normal AA?

I thought it was doing something else:
I thought that when you get 33fps or more, normal AA was enabled, and below threshold AA was being disabled (so that you would always have a decent framerate).

griswoold · Mar 25, 2005, 06:34 PM

Quote:

Originally Posted by JimmyT

So if threshold is 32, when your game has 33 fps you have TAA and when it drops to 31fps or less it switches to normal AA?

yes that's right

Mar 22, 2005, 05:33 PM	#1
bogy DriverHeaven Newbie Join Date: Sep 2003 Posts: 1 Rep Power: 0	Anti Aliasing Treshold I got a question about the FSAA settings in the control panel. What exactly is the TRESHOLD option for? you can see in this screenie what i'm talking about

Mar 22, 2005, 06:54 PM	#2
Zelig DriverHeaven Extreme Member Join Date: Jun 2003 Location: Canada Posts: 3,167 Rep Power: 53 System Specs	The threshold option is used in combination when temporal anti-aliasing is enabled. When TAA is enabled, low frames rates can cause flickering. When frame rates fall below the specified threshold, your card will revert to regular AA, thus sacrificing some AA quality but eliminating flickering. __________________ --

Mar 23, 2005, 01:04 PM	#3
redsolar Off duty Join Date: Jul 2003 Location: Iowa, USA Posts: 1,252 Rep Power: 0 System Specs	I also think it's currently not quite working right as of right now. At least I saw quite a few threads reporting problems with threshold not kicking in when expected or at all. __________________ Real_Men_Do_Not_Use_Space_Bar Main rig: Intel Core 2 Quad Q6600 @ 3.6 GHz (Zerotherm Nirvana NV120) \| 2x2GB Mushkin + 2x2GB Corsair DDR2-800 5-5-5-18 \| Abit IP35 Pro \| XFX 8800GTS 512 800/1100 \| 2x160GB Seagate 7200.9 RAID1 + Hitachi 1TB 32MB \| NEC SATA DVD+RW + Xbox 360 USB HD DVD Drive \| Antec TruePower Quattro 850W PSU \| Antec Nine Hundred Case \| 3x 24" LCD (Dell 2407WFP + 2x StarLogic) \| Logitech Z-5500 \| Vista Business x64 Laptop: Dell Vostro 1500 \| Core 2 Duo T7500 \| 2.5 GB RAM \| nVidia GeForce 8600M GT \| 200GB 7200 RPM \| DVDRW \| 15.4" 1680x1050 LCD \| XP Pro

Mar 25, 2005, 05:31 PM	#4
JimmyT DriverHeaven Junior Member Join Date: Apr 2004 Posts: 44 Rep Power: 0	So if threshold is 32, when your game has 33 fps you have TAA and when it drops to 31fps or less it switches to normal AA? I thought it was doing something else: I thought that when you get 33fps or more, normal AA was enabled, and below threshold AA was being disabled (so that you would always have a decent framerate).