So I'm adding tracers to my game
http://www.youtube.com/watch?v=pJuwFMEWO3M and I figure I should look at the issue of alpha blending the tracer mesh. But before I dive into it, I wondered if there is already something in there I'm missing? Do any of the existing shaders support alpha? I added alpha testing to my own shaders, but wonder if additive is a different beast (aside from the sorting issues of course).
I'm trying to not get bogged down in too many details (like the particles really not working too well for instance). On to more city generation tommorrow.