@spikebor_comic Sure. So first, I render all objects that need lines using a custom shader tag. So object's with shader pass tagged "LightMode"="Outline" are rendered to a new texture that holds information I've found I need to create nice lines.
@spikebor_comic That ends up looking the like the images below: RGB, R, G and B, the channels are different images so you can see each. Each channel is used for a different aspect of rendering. R stores a float referring to an object, this is used to draw inter-object lines (outlines).