Is FXAA anti-aliasing?

Fast approximate anti-aliasing (FXAA) is a screen-space anti-aliasing algorithm created by Timothy Lottes at Nvidia.

What is anti-aliasing FXAA in games?

Fast Approximate Anti-Aliasing, or FXAA, is a post-process form of anti-aliasing. That means instead of messing with the rendering, it’s an algorithm that comes in after the fact to clean up jagged edges. That makes it much less demanding than MSAA and SSAA, though at the cost of image quality.

Do I need FXAA and MSAA?

Basically MSAA is only going to run well on newer games if you have a mid-range GPU or better. FXAA – Requires shader units and a little bit of memory bandwidth. FXAA is basically ‘free’ on a mid-range or above GPU.

Does FXAA increase performance?

FXAA has no affect on the FPS. MSAA kills your FPS.

Should I turn FXAA on or off?

The nvidia control panel FXAA will override the in game FXAA, it shouldn’t matter which you choose they should do the same thing. I would just use the in game FXAA and leave nvdia control panel FXAA off. FXAA certainly is not going to get rid of all aliasing, especially with a 900p monitor.

Should you use FXAA?

It depends on your GPU, your preference, and what kind of performance you’re after. If framerate is an issue, however, the choice is usually obvious: FXAA is very efficient. If you’ve got an RTX card, and the game you’re playing supports it, give DLSS a try—you paid for it, and it’s top of the line.

How do I enable anti-aliasing in AMD FXAA?

Because FXAA is a post-process form of anti-aliasing, you can apply it to any game, either as a standalone form of anti-aliasing or on top of what you have set in-game. In AMD’s Radeon Software, you can also set up anti-aliasing. Navigate to Settings > Graphics and click the Advanced dropdown.

Is FXAA a useless technique?

Obviously this doesn’t make FXAA a useless technique but there is no free lunch in computer graphics and if you want to eliminate the byproduct of an insufficient sampling rate (aliasing) you need to increase the sampling rate one way or another.

Is FXAA better than AA at fragment shading time?

If course, doing AA as a render-buffer pass requires a loss of detail, while doing it at fragment shading time requires an increase-FXAA might be lower requirements, but it’s objectively worse.

Why doesn’t FXAA work for sub-pixel visibility?

The reason is simple: it doesn’t have enough information to work with as visibility is evaluated only once per pixel. FXAA won’t do much for sub-pixel features.