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Author: puff-dayo

README.md

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+# CozyOverlay
+
+A lightweight, GPU-accelerated desktop overlay that simulates falling snowflakes for a cozy winter vibe. Built with DirectComposition, Direct2D, and FLTK on Windows.
+
+This is a native Windows rebuild of the snow animation from my previous Electron app [CozyDeco Overlay](https://github.com/puff-dayo/cozydeco-overlay/), created in 2024. The new version uses C++ and Windows APIs for lower resource usage and better performance.
+
+<img src="https://github.com/user-attachments/assets/f0c5f49f-1810-4bf5-a058-d2e40da95300" width="533" height="auto">
+
+## Features
+- Customizable falling snowflakes with sway, rotation, and fade effects.
+- Click the tray icon to open settings.
+- Hotkey Ctrl+Alt+Q to exit.
+
+## System Requirements
+- Windows 10 (version 20H1+)
+- DirectX 11-compatible GPU
+- Segoe UI Symbol font (pre-installed on modern Windows)
+
+## Build
+
+Visual Studio 2022 (with C++ Desktop Development), CMake 3.20+, FLTK 1.4.4.
+
+```bat
+cmake -S fltk-1.4.4 -B fltk-1.4.4\build -G "Visual Studio 17 2022" -A x64
+cmake --build fltk-1.4.4\build --config Release
+cmake --install fltk-1.4.4\build --config Release --prefix fltk-1.4.4\install
+
+cmake -S . -B build -G "Visual Studio 17 2022" -A x64 -DCMAKE_PREFIX_PATH="fltk-1.4.4/install"
+cmake --build build --config Release
+cmake --install build --config Release --prefix out
+```