拾光 Afterglow

在时间的碎片里，拾起那些被光照亮的瞬间。
_{The light that lingers after the moment has passed.}

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A native Windows image viewer built for stillness. No clutter, no noise — just your photos, and the quiet passing of time.

一个为 Windows 打造的原生图片浏览器。没有多余的按钮，没有臃肿的界面——只有你的照片，和安静流淌的时间。

Features

• Gallery — auto-scans your photo library, grouped by year and month, like flipping through a film journal
• Album Folders — Ctrl+D to curate your own collections, multiple folders woven into one garden
• Smooth — Direct2D hardware-accelerated rendering with spring animations, 60fps
• Instant — background async scanning & lazy thumbnail loading, never interrupts your browsing
• Formats — JPG / PNG / BMP / GIF / TIFF / WebP / HEIC / AVIF / ICO / JXR
• Lightweight — pure C++20, no third-party frameworks, runs out of the box

Shortcuts

Key	Action
Ctrl+D	Add album folder
Ctrl+O	Open image file
Esc	Back to gallery
← →	Previous / Next
Scroll	Gallery scroll / Image zoom
Drag & Drop	View dropped images

Build

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

Output at build/bin/Release/ultra_image_viewer.exe

Architecture

src/
├── core/              # Application, ImageDecoder, ImagePipeline, CacheManager
├── rendering/         # Direct2D renderer, texture management
├── ui/                # GalleryView, ImageViewer, ViewManager
├── animation/         # Spring-based animation engine
└── image_processing/  # Color correction, sharpening, RAW decode

Album Folders

On first launch, Afterglow scans your system Pictures / Desktop / Downloads folders automatically.

Press Ctrl+D to add your own album folders. Add as many as you like — all photos merge into a single timeline, sorted by date. Your folder list is saved and restored on next launch.

System Requirements

• OS: Windows 10 / 11
• CPU: x64
• GPU: DirectX 11 Feature Level 10+
• RAM: 4GB+

License

MIT License. See LICENSE for details.

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_{拾起光，就是拾起记忆。
To gather light is to gather memory.}