[Feature Request] Add FXAA pass

[Nerboruto]

Quick summary

To improve in general image quality and FSR pass

Details

it must be implemented before scaling to native ps3 resolution
and a button in the gui to enable it

[Nerboruto]

in case I can try to implement it myself if KD-11 has no time.

[Asinin3]

I know kd planned on eventually adding a way to force msaa and also make it run faster. FXAA makes things a blurry so im not sure how much people would want it. But additions are always welcome. Personally I like SMAA quite a lot.

[Linear524]

FSR doesn't need FXAA tech addition because FSR itself based on Lanczos for upscaling image while sharpening is being applied at designated level. FXAA will just mess up high-contrasted details.
Original PS3 uses MLAA on SPU cores and it more than enough for PS3 games under 720p resolution. So MLAA + 720p + 16AF + current FSR upscaling = is the best option for RPCS3. The only thing left here - fix remaining MLAA shader error in RPCS3 and that is all.

[Asinin3]

Not all games use MLAA you know.

[Nerboruto]

Mlaa in spu kill performance.. fxaa on luma Is very fast and solve AA problems. i'm doing tests with fxaa and it works fine without damaging the image 

[Linear524]

Not all games use MLAA you know.

Not all - yes. But a lot of important games: God of War 3, Ascention, Killzone 2,3, Last of Us, Uncharted 2,3, Persona 5, MGS 2,3,PW, Shadow of the Colossus, Ico, and a lot of other games.
FXAA is side addition and will make crappy image, just like reShade does with RPCS3. MLAA is slower but 100% accurate because it was programmed by game developers in their titles on PS3.
For example - try God of war 3 with 720p + 16AF + FSR without any patches = it will give accurate and nice picture. And then try this title with MLAA disabling patch + upscaling and check overal image - it will be missing a lot of nice post-op effects and will looks like oversharpen bright crap.
Sure MLAA-disabling patches brings some speedup, but also cuts off a lot of effects with color processing, filters and other important stuff.

[floppyD]

I've been injecting SMAA with ReShade since it helps quite a lot even if you are using resolution scaling, but I do wish there was an official implementation.

[MaxMo20]

I know kd planned on eventually adding a way to force msaa and also make it run faster. FXAA makes things a blurry so im not sure how much people would want it. But additions are always welcome. Personally I like SMAA quite a lot.

I heard this, any news on msaa? I would love an fxaa and or smaa pass on msaa, though smaa seems to not work well with msaa but maybe RPCS3 can find away to get that working?

Edit: Kinda out of the loop on RPCS3 information but there doesn't seem to be much new info to begin with.

[Calinou]

I've started looking into implementing this: https://github.com/Calinou/rpcs3/tree/add-smaa

I'm not familiar with the RPCS3 codebase though, so it may take a while.

I've been injecting SMAA with ReShade since it helps quite a lot even if you are using resolution scaling, but I do wish there was an official implementation.

Note that SMAA is still best implemented directly in RPCS3, so that it can run at the game's internal scaled resolution as opposed to the output resolution (i.e. the window size). Additionally, this allows it to run before upscaling if you use FSR1, which allows FSR1 to create more convincing edges.

I heard this, any news on msaa? I would love an fxaa and or smaa pass on msaa, though smaa seems to not work well with msaa but maybe RPCS3 can find away to get that working?

It should be possible to get SMAA working regardless of what the game internally uses. SMAA only needs the color buffer in its high-quality mode (which is pretty fast in 2025 – SMAA was last updated in 2013). Therefore, it doesn't need depth buffer access.

It's still a good idea to disable the game's own post-process AA to improve performance (native SMAA should perform better than emulated MLAA/FXAA). However, MSAA is still beneficial to use alongside SMAA to improve temporal edge stability.