Tried a 'simple’Ascii Art shader for eevee / cycles… There are two options; one setup runs over a given texture and the other can transform your scene directly into ascii art thanks to the Shader to RGB Node in EEVEE (The scene with the horse) btw. the horse model is from one of these free scanning repositories, not sure about the license…
Thanks for progress and update! This looks great.
Why not trying to use also Braille symbols high-low topology. This can be even more cooler, and useful!
QUESTION: how you generate the .askii texture in grasshopper? Is it different format compression?