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Install ShaderGlass using WinGet - wingetCollections
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ShaderGlass mausimus

crt crt-monitor directx libretro overlay retro retroarch retrogaming shader shaders slang windows
Use this command to install ShaderGlass with WinGet:
winget install --id=mausimus.ShaderGlass -e

Overlay for running GPU shaders on top of Windows desktop and Wine

README

License GitHub Stars Downloads Latest Release Beta Release

ShaderGlass

Overlay for running GPU shaders on top of Windows desktop and Wine.

Features

  • applies shader effects on top of desktop, in a floating window or full-screen
  • built-in RetroArch shader library (1200+ shaders!) covering:
    • CRT monitor simulation
    • image upscaling
    • TV, VHS and handheld simulation
    • softening, denoising, blur, sharpen and many more
  • works with most emulators, retro platforms and pixel art editors including:
    • DOSBox, FS-UAE, Altirra, ScummVM, AGS, VICE, Aseprite etc.
  • excellent companion for pixel art showing shaded and/or aspect-ratio corrected preview
  • you can even use it on top of YouTube, Twitch or modern games
  • allows capture from a USB source (webcam or capture card)
  • saving and loading profiles
  • import of external .slangp/.slang shaders
  • high customizability with various options, operating modes and shader parameters
  • can be captured by OBS (using Game Capture source)

Check out Online Manual for details.

Download

Latest stable release (v1.3.0, 19 Mar 2026):

  • desktop/window capture under Linux/Wine
  • shader search function
  • shader library update
  • minor enhancements

https://github.com/mausimus/ShaderGlass/releases/download/v1.3.0/ShaderGlass-1.3.0.win-x64.zip

Betas and older versions available here

Versions
1.3.0
Website
github.com
License
Last updated
8/7/2026
Download latest version
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Get it on Steam!

ShaderGlass on Steam

Black Frame Insertion (BFI) and Blur Busters' CRT Beam Simulator have been spun off into a new app ShaderBeam.

Requirements

  • Windows 10, version 2004 (build 19041) or Windows 11
    • will work on version 1903 but in limited capacity (no Desktop Glass mode)
    • Windows 11 allows the removal of yellow border (see FAQ for tips on avoiding it on Windows 10)
  • DirectX 11-capable GPU
  • Linux: running under Wine/Proton is supported since 1.3 using ScreenCast/PipeWire for capture (clone mode only)

Demo

Click to view on YouTube

ShaderGlass (YouTube)

Screenshots

ShaderGlass running over multiple applications on Windows 11 desktop.

screenshot

Desktop Glass mode

In this mode a transparent floating window will apply a shader to anything behind it. Requires Windows 10 2004 - on 1903/1909 you will see only a black window if you switch to this mode.

Wikipedia in Chrome processed by crt-geom shader which applies scanlines and CRT curvature.

screenshot

Window Clone mode

When capture is fixed to a specific window it's easier to tune scaling to match the input and image can also be recaptured (screenshot/OBS etc.)

FS-UAE

Amiga version of The Secret of Monkey Island (1990) running in FS-UAE with crt-interlaced-halation shader applied.

screenshot

Altirra

Ninja (1986) for the Atari XL running in Altirra with a TV-OUT simulation shader.

screenshot

Adventure Game Studio

The Crimson Diamond (2024), a modern AGS game using HSM MegaBezel STD shader.

screenshot

DOSBox

Police Quest (1987) with its massive half-EGA pixels, aspect-ratio corrected and post-processed using newpixie-crt shader.

screenshot

Rick Dangerous (1989) with C64 monitor shader applied.

screenshot

Instructions & Manual

See Online Manual for option explanations and Frequently Asked Questions.

Code

Built using Visual Studio 2022 using ISO C++ 20, Windows SDK 10.0.26100, Windows Capture API and DirectX 11.

ShaderGlass includes a limited implementation of RetroArch shader back-end using DirectX 11. ShaderGen is a command-line tool for converting Slang shaders into .h files which can be precompiled in ShaderGlass. The conversion process relies on:

  1. glslang for converting Slang/GLSL shaders to SPIR-V
  2. SPIR-V cross-compiler for converting those to HLSL (DX11 format)
  3. Direct3D Shader Compiler (fxc.exe) for pre-compiling into bytecode

Notices

  • ShaderGlass application is provided under GNU General Public License v3.0

  • Includes precompiled shaders from libretro/RetroArch shader repository. Please refer to copyright notes within shader code for detailed copyright and license information about each shader.

  • App icon courtesy of Icons-Land

  • Big kudos to RetroArch team, emulator developers and the wide retro community!

  • Thanks to @lonestarr and @EndlesslyFlowering for PRs and everyone for feedback and testing :thumbsup: