I think a good script for the particle system would be a way to make tracer bullets (or laser shots). Could this be done?
Wouldn’t it be easier to do that with motion blur?
Don’t use particels for tracer bullets or comparable things. It may look easy, but you have to accept strict creative limitation.
My suggestion:
- use a small Cylinder with material emitter to 1, make the material not receive or cast shadows
- parent a simple lamp with a low value to center of the cylinder
- use motion blur (and of course IPO)
- or maybe use postprocessing gaussian blur.
Using blur, no matter which, will slow down the rendering, i figure out, if you use both blurs, you will have to wait forever