An image editor using ReShade shaders.

If you just want to use the tool, grab the pre-built zip from the Releases tab.

• What is this?
• Requirements
• How to Run
• Controls & Hotkeys
• In-Game Depth Capture
• Standalone Undo / Redo Add-on
• Building from Source
• Project Structure
• License
• Pull Requests
• Author & Socials

ShaderLab is a lightweight app with an addon that leverages ReShade's shader pipeline for state-of-the-art image processing. It allows you to apply various effects such as color grading, changing lighting, bloom, sharpening, depth of field, and more to your images, the limit is your creativity, as with ReShade itself.

• Project saving: Saves your original image, current parameters, and shaders settings to a .shaderlab file, so you can come back and tweak it later.
• Native Resolution Export: Renders images through active ReShade pipelines at their true resolution, without any downsampling.
• In-Game Depth Capture (ShaderLabCapture.addon): ReShade companion add-on for games. Screenshots automatically get their depth buffer embedded right into your png file.
• Machine Learning Depth Estimation: One-click local depth inference directly on your machine for any image with no depth. So your depth of field effects and other depth-related shaders will work. (Lacks good normals though, RTGI is recommended only on depth captured from games.)
• Full Undo / Redo feature: Just like any other software, use (Ctrl+Z / Ctrl+Y) to undo / redo your changes.
• Interactive Viewport: Pan, zoom, smooth sub-degree rotation, 45° snapping, lock modes, and live depth peeking (D key).
• CLI: Batch processing, preset rendering, single-shader testing (.fx), and parameter overrides without opening the UI (see CLI_MANUAL.txt).

• OS: Windows 10 / 11 64-bit, DirectX 11 capable GPU.
• ReShade: ReShade with Full Add-on Support 6.8+ (download from reshade.me). Standard signed ReShade builds do not load unsigned .addon binaries (they won't work)

1. Download ReShade with full add-on support from reshade.me.
2. Run the ReShade setup, browse and select ShaderLab.exe, choose DirectX 10/11/12, and pick your shader packages.
3. Launch ShaderLab.exe.
4. Drag and drop any image (.png, .jpg, .jpeg, .bmp) or .shaderlab project onto the window.
5. Press Home to open the overlay:
   • Home tab: Enable and tweak your ReShade shaders.
   • ShaderLab Helper tab: Contains controls to manage depth, settings, keybinds, and Export.

• Left drag: Pan image
• Right drag (or Alt + Left drag): Rotate image (snaps every 45°)
• Mouse wheel: Zoom in / out (centered on cursor)
• Left double-click: Reset entire view (zoom, pan, rotation)
• Shift (hold): Fine-tune mode (smooth sub-degree rotation, precision zoom, slow pan)

To capture the true depth buffer from games:

1. Copy ShaderLabCapture.addon into your game's executable folder (e.g. Binaries\Win64\ for Unreal Engine games).
2. Whenever you take a ReShade screenshot in-game, the add-on embeds the camera depth into the PNG automatically, shouldn't be more than 1-4MB depending on the resolution you play at.
3. Drop that screenshot into ShaderLab, and depth effects like DoF, SSAO, RTGI, ReLight, etc... will work out of the box!

A standalone ReShade add-on that brings full undo and redo capability to any game or ReShade installation:

• Full History Tracking: Tracks every uniform slider and technique toggle with up to 1,000 steps.
• Hotkeys: Ctrl + Z to undo, Ctrl + Y (or Ctrl + Shift + Z) to redo.
• In-Overlay History Browser: Appears directly in ReShade's Add-ons tab. Browse your entire tweak history, jump to any prior step or back to the initial preset state, and quickly undo / redo via dedicated buttons.
• Rebindable Keys: Click-to-remap interface right in the overlay with automatic modifier detection (Ctrl, Shift, Alt), saved directly to your ReShade.ini.
• Zero Dependencies: Lightweight single-file add-on that works with any 64-bit game running ReShade with full add-on support. Just drop UndoRedo.addon next to the game executable.

• Visual Studio 2022 (C++20 desktop workload)
• CMake 3.20+

Build with (PowerShell):

cmake -B build -G "Visual Studio 17 2022" -A x64
cmake --build build --config Release

Built outputs:

• build/host_app/Release/ShaderLab.exe
• build/addon/Release/ShaderLab.addon
• build/undo_redo_addon/Release/UndoRedo.addon
• build/game_capture_addon/Release/ShaderLabCapture.addon

• host_app/: D3D11 host application, CLI parser & subcommands, HUD overlays, viewport controller.
• addon/: ReShade add-on UI, undo/redo system, IPC hooks, export pipeline, depth manager, etc.
• game_capture_addon/: Standalone in-game camera depth grabber.
• undo_redo_addon/: Standalone Undo / Redo ReShade add-on with remappable hotkeys and history browser.
• common/: Shared memory IPC protocol (ipc_protocol.h), custom .sldepth chunk serializers, project file handlers.
• tools/depth_anything_v2/: Python inference backend for AI depth estimation.
• third_party/: Header-only vendor libraries (reshade, imgui, stb, miniz).

ShaderLab is released under the MIT License.

For third-party dependencies, open-source libraries, and model licenses (Depth Anything V2, ReShade SDK, Dear ImGui, stb, miniz), see THIRD_PARTY_LICENSES.md.

When submitting a pull request:

• Test it out, make sure it works as intended, just because it compiles doesn't mean it works, especially if its AI generated code, it's also best to disclose if it was AI generated or not as that helps to know what areas to look closer at during review and test for subtle breakage.
• Write a sufficient description of your addition/fix.

You can also open an issue in the issues tab for the bug or feature request instead.

Built by RaySt

• Patreon: patreon.com/cw/RayST
• Twitter / X: @NotRay_st