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Author Topic: Nvidia FXAA  (Read 3942 times)
TX-Gunslinger
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« on: January 02, 2013, 10:28:14 am »

I've been comparing the new Nvidia FXAA (released via Nvidea drivers this year) enabled on Video Card in Nvidea CP and tweakable in Nvidea Inspector, with normal AA settings and 777 Supersampling FXAA enabled in ROF.

Findings:

1 - similar performance to RoF SS, appearance is too close for any objective comparison
2 - Full 20 fps boost in performance

Scanning through web this morning, I learned that AMD has a similar process though less computationally efficient (so will hit the frames harder).   At least that what HardOCP evalution between the two revealed.

In comparing graphics settings/rough performance with Eco last week - I was reminded of the setup and operation differences again between Nvidia and AMD.  You cannot mirror settings between both vendors cards - you have to dig deeper and understand the differing processes before setting up a test.

I tested both AMD and Nvidea cards in my system during the 1.01 through 1.14 ROF besta testing phases in XP, Vista 64 and Win 7.

I though I would post this as I have not seen anyone attempting performance gains via hardware based FXAA.

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Gunny
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« Reply #1 on: January 02, 2013, 12:49:02 pm »

Gunny I always did that also tweaking into the drivers itself Smiley
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TX-EcoDragon
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« Reply #2 on: January 02, 2013, 01:24:52 pm »

Actually, AMD cards can now use their own MLAA or the nVidia FXAA if you get RadeonPro software! The nVidia FXAA is a little faster according to some reports, and yes, I read that Hard[OCP] review on it while I was waiting for my card to arrive. I tested both the AMD MLAA and the nVidia FXAA and I didn't like them for the flight sims. I think for shooters and such they are probably great - but both modes are a form of full screen anti-aliasing, so they blur everything including the instrument panels and menu text. I want to read my gauges without needing to zoom way in to them and so I like the sharpness that in built AA provides.

These modes of FSAA also do not deal with the RoF shimmering textures near the horizon that drive me crazy.

I can see that if I used a higher resolution monitor, and a narrower FOV I might be able to turn off Super Sampling, but at wider zoom settings on my 1920x resolution the shimmers are bad on distant half of the horizon.
« Last Edit: January 03, 2013, 05:20:04 pm by TX-EcoDragon » Logged

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TX-EcoDragon
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« Reply #3 on: January 02, 2013, 03:35:02 pm »

Yes the problem is really the shimmers only.. so finding the cure is tough
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TX-EcoDragon
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« Reply #4 on: May 09, 2013, 05:17:48 pm »

Utilizing FlightFX and the included LUMASHARPEN feature I can use their SMAA (like MLAA) but with even sharper than default textures. Using them both together gives a much better look than just using SMAA/MLAA/FXAA.

None of these get rid of the shimmers, it still seems that SUper Sampling is the only way to go to kill those darn shimmers (at least for AMD users).
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