TexFont

TexFont (TXF) is a "texture mapped" font format, and associated software, designed to work well with the OpenGL API. It was developed by Mark Kilgard. It is presumably not related to TeX.

Identification
Files begin with bytes, followed by either or.

Software

 * TexFont

Sample files

 * The TexFont software listed above includes some samples.
 * https://github.com/CelestiaProject/Celestia/tree/master/fonts
 * https://telparia.com/fileFormatSamples/font/texFont/

Links

 * A Simple OpenGL-based API for Texture Mapped Text (from archive.org)