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Guest alfredmanning

AA applicaton controlled?

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I experimented with my anti-aliasing setting on my video card (Nvidia 7900 GS). It seemed that when I unchecked the AA option in FSX, and selected 2X, 4X etc. on my video card display settings, I could NOT see any AA effects in the sim. (I could see jagged edges on the A/C no matter which setting I used).Conversely, when I did check the AA box in FS and and told my video card to let the application determine AA, I could clearly see AA being utilized in the sim.I had read that letting the video card determine AA, rather than the sim, would improve the fps but it appears that, in my situation, I have to have the AA option checked in FSX or I won't get the benefits of AA at all.Anyone else observe this?Bob

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That was true in FS9.With FSX it appears that letting the AA be controlled by the application is the way to go.The same thing happens to me by the way......Glenn

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Thanks for the reply. It appears that FSX only "allows" AA to be utilized if you check the AA box in the sim's display settings. Does your card have an Nvidia GPU? I wonder if this happens with ATI cards.

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7600gs here. negative. aa set on the card results in very visible smoothing in the game, with quality and performance changing as the multiplier and method get changed. in-game checkbox offtry a different driver. you may gain a few frames, too ;-)

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>7600gs here. negative. aa set on the card results in very>visible smoothing in the game, with quality and performance>changing as the multiplier and method get changed. in-game>checkbox off>>try a different driver. you may gain a few frames, too ;-)I'm also running the GeForce7600GS (256MB), and I have AA set within FSX. It's been doing so well, that I'm not going to mess with it! :D L.Adamson

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Bob.when you change you Video Driver setting. Did you have the FSX on? Everytime time you change the Video driver setting. You have to exit out of FSX/FS9 and then get back in.I was under the same impression as you. I go and change the driver AA setting...or anything else for that matter. But it makes no difference in FSX..... Until I exited and loaded the sim again.I have my Video Driver AA to 16XQ and Anisomorphic..or whatever...to 16X too. Manny

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i know. it worked for me too. works either wayapparently, only one way for the original poster--hence my comments. the behaviour he describes may be indicative of a deeper problem

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OK, thanks Manny you were correct. In my original test, I was changing the settings on the video card while FSX was up and running.This time, I turned off the AA in FSX, exited out of the program, then activated my video card AA setting to 4X. Then I loaded up FS and I now definitely see the AA being utilized, even though it is unchecked in the sim.The larger question is, will I really see any improvement in performance whether the sim or the video card controls the AA, and I'm guessing that the answer is "probably not".Although I'm not complaining now. I've set my max FPS to 22 and I'm maintaining that about 90 percent of the time, with most of the sliders set to half-way, or higher.BobCore-2 duo E6600@ 2.4Ghz (not overclocked)Nvidia 7900 GS1GB DDR2 667Mhz Ram

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>>Anyone else observe this?>Yes, for about a month I had that problem...if I wanted AA, I had to select it in the sim. Driver AA had no effect in FSX.But that all changed when I installed new drivers and reinstalled FSX.Now I can set AA either in the sim or in the driver, and both work. I have actually found that close-up textures look best using FS's built-in AA, whereas the far-away textures look best using the card's AA.So I can't win.Performance-wise, I notice no difference.RhettAMD 3700+ (@2310 mhz), eVGA 7800GT 256 (Guru3D 93.71), ASUS A8N-E, PC Power 510 SLI, 2 GB Corsair XMS 2.5-3-3-8 (1T), WD 250 gig 7200 rpm SATA2, CoolerMaster Praetorian case

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So what is the general consensus?IN FSX what gives the best visuals? AA in sim, or driver?What gives best performance?Is it all hardware-specific? For example, I notice no performance difference either way...yet others do....??RhettAMD 3700+ (@2310 mhz), eVGA 7800GT 256 (Guru3D 93.71), ASUS A8N-E, PC Power 510 SLI, 2 GB Corsair XMS 2.5-3-3-8 (1T), WD 250 gig 7200 rpm SATA2, CoolerMaster Praetorian case

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According to NVidia and one of the Aces blogs(maybe it was FSInsider.com) - AA should be controlled by FSX for best performance and visuals.VicVisit the Virtual Pilot's Centerwww.flightadventures.comhttp://www.hifisim.com/Active Sky V6 Proud SupporterRadar Contact Supporter: http://www.jdtllc.com/

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>According to NVidia and one of the Aces blogs(maybe it was>FSInsider.com) - AA should be controlled by FSX for best>performance and visuals.>>Vic>Well Vic I know that. I read that too. But what I was trying ask was that I'd like to know what fs users are experiencing.I notice no performance difference at all. But what about the rest of you?RhettAMD 3700+ (@2310 mhz), eVGA 7800GT 256 (Guru3D 93.71), ASUS A8N-E, PC Power 510 SLI, 2 GB Corsair XMS 2.5-3-3-8 (1T), WD 250 gig 7200 rpm SATA2, CoolerMaster Praetorian case

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Hi BobYour post made me think so I have just tested it for myself.The results were not as expected.With AA set to 18x the two aircraft with hangers and a few aircraft in the distance I had between 28 to 33 FPS with perfect strait edges on wings and tail on both near aircraft.I restarted FSX with the AA turned off and the box checked in FSX the result was very close slightly better in the first test the FPS no differance I then set the AA to application controlled no noticeable change in FPS but the Edges of the tail showed very fine sawblade finnish the wings not as good as the other two settings.So I will continue to use AA set in the Nvidia control pannel @18X and AF @16X the only reson for this it will save resetting when I run my other games.RegardsRex

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Bob,Set the highest AA and what not in your Video Driver. leave the AA out of the FSX. But set it as Trilinear or something.Manny

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I posted on this aspect some time ago and have found the following on my system ( AMD 4200+, 7900GT, TripleHead2Go with 3 LCD

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>According to NVidia and one of the Aces blogs(maybe it was>FSInsider.com) - AA should be controlled by FSX for best>performance and visuals.>>Vic>>Visit the Virtual Pilot's Center>www.flightadventures.com>>http://www.hifisim.com/>Active Sky V6 Proud Supporter>Radar Contact Supporter: http://www.jdtllc.com/And it's poor advice if we don't know how much AA is being utilized: 2x;4x, etc. I'd rather control it from the video card. And I've flown back and forth with FSX AA checked and not checked with my ATI card doing the AA and I see no discernible difference in fps except for the fact if I have my card set to AA 2x or 4x it appears to have better performance than leaving it checked in FSX.

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I noticed the jaggies the other day. I had AA set to 4x on my card (Albatron 8800GTX), but as soon as I went to application controlled they went away.struck me as odd...but I'm leaving it that way for now.Jeff

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It appears as if the FSX setting corresponds to 4x in terms of visuals and performance. So I set it to 2x manually. Visuals are a bit worse but performance is much improved on my 7900GS (570/1740).Regards,

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I'm with you Larry, though mines the 6800XT, I run AF and AA in FSX, not in the forceware, it works so much betterIn FS9 though, I forced the AA and AF

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Tried application controlled, looks worse (more jaggies) than when I set it 4X AA, 16X AF in the NVidia control panel and performance is similar with my 7900GTX.REgards, Carlos

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I have a couple of 7800GTX boards installed (current drivers) and have tried the internal AA and I use 16SLIAA which is definitely superior for eliminating all the rough edges particularly the airfield taxiway markings at obtuse angles. I have observed no discernable difference in performance betwen these two methods.However, it appears that the SLIAA doesn't work in Windowed mode as the virtual cockpit gets jaggies around the edges, this doesn't worry me because I use full screen VC all the time. I note that no other posters have commented on Windows/Fullscreen modes. Of course bitmapped objects such as auxilliary windows (e.g. Shift-1 through Shift 9) look terrible because they are not subject to AA.As for the mixed messages that have been quoted I don't think that there is any one rule to satisfy all. Any advice which Nvidia or Aces give must, by necesity, be generalised so each user must find their own sweet spot.

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I don't think there is any "all encompassing" answer here.I have a Dell D810 laptop 1.86 Penitum M, 64MB ATI X300 mobility, 2GB ram and my machine turns into a slide show when I use FSX based AA. I haven't tested if there's a difference with hardware AA on or off, but it looks fine to me. I run at 1920 x 1200.I suggest testing on your machine and choosing what you like best.Thomas[a href=http://www.flyingscool.com] http://www.flyingscool.com/images/Signature.jpg [/a]I like using VC's :-)N15802 KASH '73 Piper Cherokee Challenger 180

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