I replied on the original thread too, but I wonder if it’d work to use a mipmapped dither texture in texture space like this old hatching paper: http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.28....
It probably won’t give you exact 1 pixel dither without some hacks, but maybe something along those lines could work.
That is really cool, especially for the time. Only downside is I think some uv mapping is required to map the hatching onto the models. Here is a video of the paper https://www.youtube.com/watch?v=g6Ta35AiE1I