Pathfinder is a GPU vector renderer developed at Mozilla, this post details some of the methods it uses.

GPU font rendering using an Loop-Blinn and algorithm reminiscent of stencil shadow volume rendering.

How to efficiently store and access properties of Unicode characters. The technique extends to other problems where sparse or repeating data must be looked up in O(1) time.

Loop-Blinn curve rendering for displaying vector graphics on the GPU.

One of the more advanced text rendering algorithms, by Eric Lengyel. Patented.

GLyphy represents a SDF using actual vectors submitted to the GPU. This results in very high quality rendering, though at a much higher runtime cost.

This is a utility for generating signed distance fields from vector shapes and font glyphs.

Very quickly check if you are are handling Arabic horribly wrong.

Two OpenGL tutorial videos that give an overview of the basics of setting up single-channel SDF font rendering. Video one covers basic bitmap text rendering, and video two shows how to convert from bitmap to SDF. Video one: https://www.youtube.com/watch?v=mnIQEQoHHCU Video two: https://www.youtube.com/watch?v=d8cfgcJR9Tk