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July 27, 2011 // 8:21 pm - Today Durante has shared how to enable Nvidia's FXAA for PS3 Games using PtBi 1.798 with an HD capture card and PC.

To quote: Some PC gamers (myself included) like to go on about the huge image quality advantages of playing on PCs. Now, your PC can actually improve the visual quality of console-exclusive games! (outside of emulation)

I've previously posted about the small program PtBi that I use to display 360 and PS3 games. Today I added the ability to use NVidia's FXAA - thanks to them for releasing the code to the public domain and making it easy to integrate.

For those that are unaware, FXAA is a post-processing method that tries to reduce the amount of aliasing artifacts (think pixel staircase) in an image. It's similar to MLAA in that aspect. Like all post-processing methods that act purely on image data, it has some drawbacks:

- It can't handle subpixel aliasing well. (Unlike most similar methods, it at least tries to reduce it though)
- Sometimes aliasing may be detected incorrectly, resulting in an overblurring of the image. PtBi can mitigate this by adaptive sharpening after the FXAA pass.
- Particularly when used as a post-filter external to a game, it's impossible to distinguish between UI and rendered 3D elements. This results in some UI distortion.

Advantages are that it can be used on any image data, it is really good at smoothing the edges it detects and it's very fast. On my system, with YUV decoding, FXAA and adaptive scaling on, it still only takes less than 5 ms for a frame to be completely processed. Another nice point is that it can be used on top of images generated with eg. 2xMSAA (like many modern console games) and still achieve an improvement in edge quality.

That out of the way, here is an example of it in action on Everybody's Golf. First without any post-processing, second with FXAA and adaptive sharpening. (This scene is obviously selected to maximize the effect, but you can find more random shots in the link at the end of this post.) Here is another one from Nier, same order.

So, how do you get to join in on the fun? Well, that's one remaining problem. You basically need a somewhat capable PC and a Blackmagic Intensity capture device. Sorry, nothing I can do about that.

Here is a gallery with many more comparisons, both ones that work well and ones that are less impressive.

Nvidia FXAA Enabled for PS3 Games via HD Capture Card and PC

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#6 - Kraken - July 31, 2011 // 3:50 pm
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Is there a way to enable FXAA without the TV tuner card (for PC applications)? Obviously you need the TV tuner card for PS3/360, but there are a lot of old PC games/emus that could benefit from this.

#5 - condorstrike - July 28, 2011 // 2:16 pm
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yeah, and i've been reading around... seems like a lot of people dislike that antialiasing tech. the more the better I say.

#4 - Bishoff - July 27, 2011 // 9:46 pm
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Wouldn't be worth it money wise, but certainly worth it for the cool factor!

#3 - CJPC - July 27, 2011 // 9:08 pm
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Very interesting - my question really is, what the input lag is on it. As everyone knows, lag can be killer, and if it is anything even remotely large, it would be a big killer. Of course, so is the few hundred you need to throw in - but, it can be done!

#2 - elser1 - July 27, 2011 // 8:49 pm
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that's kool.. i wonder if its worth doing, money wise?

cheers for info boss!

#1 - tilla - July 27, 2011 // 8:37 pm
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Neat trick!