In the next few weeks, I will be adding materials to polylines. This will add support for widths greater than one in ANGLE. Many of the existing materials will work on polylines as well as new materials like outline and glow. I plan to implement both 2D and volumetric lines. If you are interested, you can check out the material system details on the roadmap. I’ll be working in the polyline materials branch.
Comment if you have any requests for materials or would like to know more details on my plans for implementation.