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1.2 / 15-04-2026

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Scanlines for Windows

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S4W is an open source nimble app that injects a pixel shader directly into the game’s render pipeline allowing to add scanlines or CRT/VHS effects on PC games, emulators, frontends in a unified way. It should work regardless if the program offer scanlines or not. It's recommended to watch this video to understanding how to set it up.

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Most Recent Changes

--1.2--

  • Complete UI redesign

  • Interface now split into 2 tabs: Layer Configuration and System Settings

  • New GPU‑based scanline generator: scanlines are now rendered in real time with a Direct3D 11 HLSL shader (no more PNG files)
    for a cleaner, more consistent result across all resolutions


This is not an in‑game shader injected directly into the game like ReShade. It stays as an overlay on top of the game and the rest of your windows screen.

  • Better visual quality, with old scrolling / shimmering artifacts reduced

  • New Association Profile system to bind an emulator .exe to a specific profile

  • New Multi‑System Emulator workflow (for higan, ares, etc.):Name the system, pick or create the ROM folder directly from the UI
    Click Scan to index all ROM names in that folder
    S4W automatically loads and applies the right profile when it detects a matching game/rom window + emulator exe

  • No more manual “arming”: profiles are now displayed and applied automatically on detection

  • Resize Ui (fit 480p to 4k)

  • Display monitor selection

  • Start Minimized

  • Close to Tray

  • New Global Shortcuts section

  • New Backup & Restore (Export / Import) system to save all settings in a single file

  • New languages added : English (ENG), Français (FR), Deutsch (DE), Italiano (IT), Español (ES), Português (PT‑BR)



--1.1--

1/ Layer system

(Add Bezel/CRT + Scanlines or combine two scanlines files)


2/ Antialiasing


3/ Delete Button

Press button to delete a saved profile

You also can use "save.txt" to do it.

Just delete the line you need except default profile or you'll get an error message too.

To reset default profile Copy and Replace first line by: " Default?||None|None|10|10| "  inside "save.txt"

Remove "save.txt" file to fix error message, this will completely reset S4W but you'll lost all your saved profiles


4/ Shortcuts :

(switch png's and set opacity for both layer directly when S4W is applied)

SEE "DEFAULT SHORTCUTS.JPG"

- Switch png (Layer 1)

- Switch png (Layer 2)

- Adjust Opacity (Layer 1)

- Adjust Opacity (Layer 2)

- Save Changes

- Replace keys by using .ini Keys list link


5/ Bug Fix

- Several S4W.exe processes in the task manager

- You can no longer launch and accumulate S4W several times

- Message boxes languages were inverted



--1.0--

  • Initial Release

Show Previous Changes

None for the moment...

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