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v2.0.0: [DOCS] Add prominent FSR 4.2.0 release section to README

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@ind4skylivey ind4skylivey released this 07 Jan 22:04
· 8 commits to main since this release
v2.0.0
e08d67f

This release adds FSR 4.2.0 support, improves Steam Deck behavior, and updates several game profiles and docs.

Changes

  • Added support for FSR 4.2.0.
  • Improved Steam Deck-specific tuning.
  • Updated 9 game profiles.
  • Improved motion handling.
  • Refreshed documentation and setup notes.

Advanced features

Frame Generation

FSR 4.2.0 includes an experimental frame generation option for supported games.

[OptiScaler]
FrameGeneration=Enabled
FrameGenInsertionRate=Aggressive  # Balanced, Conservative

Notes:

  • Can increase FPS.
  • Adds some latency.
  • Best suited for single-player games.
  • Not recommended for competitive play.

Requirements:

  • GPU with hardware frame generation support.
  • Enough VRAM, ideally 8 GB or more.
  • CPU headroom for frame analysis.

Adaptive Quality

FSR 4.2.0 can adjust quality automatically based on performance.

[OptiScaler]
AdaptiveQuality=Enabled
TargetFrameRate=60
MinFrameRate=30

Behavior:

  • Targets a steady frame rate.
  • Lowers quality when needed.
  • Raises quality when performance allows.
  • Reduces manual tuning.

Custom presets

You can create a custom preset and apply it per game:

cp templates/OptiScaler.ini.template ~/.optiscaler-universal/custom-preset.ini
nano ~/.optiscaler-universal/custom-preset.ini
cp ~/.optiscaler-universal/custom-preset.ini ~/.steam/root/steamapps/compatdata/[STEAM_ID]/pfx/drive_c/Program\ Files/Game/Bin64/OptiScaler.ini

Migration from FSR 3.1

Automatic update

cd ~/0ptiscaler4linux
git pull origin main
bash scripts/install.sh --update

Manual migration

Upscaler=FSR420
FSRMode=Balanced

Keep your existing settings:

TargetResolution=1280x720
SharpnessLevel=75
MotionSharpness=Enabled

To roll back, restore your backup or switch back to:

Upscaler=FSR31

System requirements

Feature FSR 3.1 FSR 4.2.0
Minimum VRAM 2 GB 2 GB
Recommended VRAM 6 GB 6 GB
Minimum driver Mesa 22+ Mesa 24+
Minimum Proton 8.x+ 10.x+
CPU overhead Low Low
GPU overhead 5-10% 3-7%
First-time compile 10-30 s 5-10 s

Quick tips

  • Use FSRMode=Performance for more FPS.
  • Use FSRMode=Quality for better image quality.
  • Disable MotionSharpness if you notice stutter.
  • Lower heavy in-game settings like shadows and reflections if needed.

Links

  • Installation guide: docs/INSTALLATION.md
  • Steam Deck guide: docs/steam-deck-setup-optiscaler-linux-gaming.md
  • GPU profiles: docs/GPU_PROFILES.md
  • Game support: docs/GAME_SUPPORT.md
  • Troubleshooting: docs/TROUBLESHOOTING.md
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