I am redoing my bullet trace effect. In my old engine I just used a GL_Line wich worked ok. But since intersection system requires some geometry and I want it to look a bit better I am an considering something else, but what?. A textured box?
Hope you can help. I am not sure of the correct approach
Maybe this thread will help
Not sure if you could use a modified laser trail effect
since your bullets travel in a straight line, I would just make it a box. Renanse put together a quick game for GDC and uses boxes as laser beams.