trying to work out how you are supposed to do this

@icedquinn Line drawing is surprisngly hard (except for the GLSL way where you iterate over every fragment and test if you're "in" the line.)

@swiley hmm theres algorithms for turning polylines in to rectangles. hard part is just capping the edges together.https://ciechanow.ski/drawing-bezier-curves/

@icedquinn Everything in OpenGL other than drawing transformed shadered(?) triangles always has this "oh that's actually deprecated" or "oh it turns out no one implements that (or half the drivers implement it wrong)" attached to it. Or the default behavior is just stupid.
I hate writing stuff in OpenGL so much because of this.