I have a 2D base image on which I'd like to overlay a set of edges (several thousand), where each edge has a value determining its color.
My plan is to add each edge as a separate object with a custom property; then a single material across all edges can use the custom property to determine color.
The bit I'm having trouble with is actually getting edges to render. I was hoping that a wireframe modifier would give the edges enough geometry to be visible to the camera, however edges without associated faces don't seem to survive the modifier.
Is there a good way to get these edges to render?