MSDF Atlas Studio

MSDF Atlas Studio is a modern, high-performance desktop workstation for generating Multi-channel Signed Distance Field (MSDF) font texture atlases.

Built with Godot 4 and a high throughput C++ GDExtension backend, it wraps Viktor Chlumský's industry-standard msdf-atlas-gen and FreeType into an intuitive, responsive graphical workspace with real-time fragment shader simulation.

---

Key Features

• Multi-Format Distance Field Generation:
  • MSDF (3-channel RGB): Razor-sharp corner reconstruction at any scale.
  • MTSDF (4-channel RGBA): MSDF with soft alpha transparency contour.
  • SDF (1-channel Grayscale): Standard signed distance fields.
  • PSDF (1-channel): Pseudo-distance field representation.
• Live MSDF Shader Sandbox:
  • Real-time interactive text preview running the actual MSDF fragment shader.
  • Tweak text color, outline thickness/color, and drop-shadow softness live.
  • Smooth infinite canvas pan & zoom controls.
• Smart Fallback Font Chain:
  • Define a primary typeface with an unlimited chain of fallback fonts.
  • Missing glyphs automatically resolve from fallback fonts.
• Unicode Range Selector & Presets:
  • Quick presets for Basic Latin (ASCII), Latin-1 Supplement, Cyrillic, and Greek.
  • Custom range picker supporting hex (0x0020) and decimal inputs.
• Interactive Glyph & Kerning Inspection:
  • Visual matrix of every packed glyph with real-time UV and plane bounds inspection.
  • Full kerning table extraction directly from FreeType.
• Multi-Target Exporters:
  • Godot Engine: Native .tres BitmapFont resource ready for drag-and-drop into Godot 4 projects.
  • AngelCode BMFont: Standard .fnt + .png pairs supported by Unity, Unreal, MonoGame, and Bevy.
  • JSON Atlas: Rich metadata specification for WebGL, Three.js, and custom engines.
  • C Header Bundle: Zero-dependency static C structs for Raylib, SDL, and embedded C/C++ pipelines.

---

100% Free & Open Source

MSDF Atlas Studio is licensed under the permissive MIT License.

⭐ Source Code & GitHub Repository:
https://github.com/sachinthankachan/msdf-atlas-studio
If you find this tool helpful in your game pipeline, please star the repository on GitHub!