This is a collection of complementary crates for converting fonts into signed distance fields and combining the results into MapLibre-compatible font stacks. Refer to the individual crate READMEs for more details.

• build_pbf_glyphs - CLI tool to crunch a directory fonts into PBF files you can host statically
• pbf_font_tools - Library exposing high level interfaces for generating glyphs from TTF/OTF fonts and combining glyphs from multiple fonts into fontstacks.
• sdf_glyph_renderer - Library crate for converting SDF glyphs from an arbitrary bitmap (alpha map).