AMD FSR Can Be Applied to (Almost) All Vulkan Games via Proton's FSHack

AMD's FSR is speedily getting unofficial implementations in several games, mods, and hacks. Later the mods that added FidelityFX Super Resolution to G Theft Auto V and Assetto Corsa, Georg 'DadSchoorse' Lehmann establish a way to apply FSR to (near) all Vulkan games nether the Linux environment, as function of Proton's fullscreen hack.

The modder himself does warn that information technology'southward not a perfect implementation, but we reckon information technology's still impressive in its own right.

This is an implementation of AMD'southward FSR https://gpuopen.com/fidelityfx-superresolution/ in fshack, which allows users to chose it instead of linear/nearest filtering for upscaling. It tin be enabled usingWINE_FULLSCREEN_FSR=1 and a lower in game resolution than the display's native 1.WINE_FULLSCREEN_FSR_STRENGTH controls the amount of sharpening (not to exist confused with AMD's quality presets, those are well-nigh the input resolution), 0 is the maximum sharpness, higher values hateful less sharpening. The default is 5.

Caveats:

Only works in vulkan games (dxvk and vkd3d-proton included).

Some games upscale on their own, without using fshack, when you select a lower resolution in game. FSR won't work in those.

Obviously applying FSR to the concluding image is not ideal, information technology should exist applied before the UI is drawn and earlier some mail processing effects similar moving picture grain.

AMD likewise recommends a negative LOD bias, which is not possible in a generic manner without issues.

This is only the slow fp32 version, if accepted I might follow upwardly with the fp16 version.

The patchset is a bit of a mess. If the huge commit is a problem I tin try to carve up it up a fleck.

An environment variable to add custom resolution modes (e.m. 2048x1152) would be overnice to more directly command the quality.

YouTuber GloriousEggroll, who primarily covers Linux-related gaming news, already posted a video showcase of this FSR hack used with Forza Horizon 4, a game that most certainly does not natively back up AMD's latest applied science. Co-ordinate to GloriousEggroll, FSR Ultra Quality was able to clasp an actress 25 frames per 2nd when playing at 4K resolution and Ultra settings.

This also bodes extremely well for the Steam Deck, since Valve's upcoming handheld PC uses Proton with its customized SteamOS by default. Of course, y'all also have the option of installing Windows on the Steam Deck if yous wish.