I'm trying to create a very simple 2D game that uses retro vector graphics like in the games Defcon and Project Vex. The effect I'm trying to get is glowing lines and the transparent color inside of a color.

See the screenshots here:
http://devimg.net/?Post=448
http://www.introversion.co.uk/defcon...reenshots.html

I'd like to game to be playable on shader model v1.3 or lower graphics cards so most bloom effects won't work...

So... my question is this:

Is it possible to have glowing lines on a video card that only supports pixel shader model v1.3 or lower? I'm open to using any graphics API as long the effect is somewhat easy to create and looks really nice

If there isn't a nice way to do this on shader model 1.3 cards, what is the easiest/best way to do it on SM2.0 cards?

Thanks,
John