Unity 4 Particle System

I just started a project in Unity 4, and apparently particles are done totally different. Now instead of adding separate components for the emitter and renderer and stuff, there’s just a “Particle System”. This seems much more intuitive, but I can’t seem to figure it out.

My goal is to have a particle shoot from my player (which has the particle system attached) to a target in world space. Essentially I’m looking to create bullet tracer effects. The only help I can find on this subject is under the old system. Can anyone help with the new one?

Essentially, I’m looking for info on how to adjust the direction the particles travel, the speed the travel at, and how to get them to destroy themselves after traveling a certain distance.

All you have to do is play with the particle system for a little while. I know it can be scary at first lol. Use an empty gameObject with the particle system as a child, then rotate the child 90 till it blows particles out the direction you want. Then just play with the different parameters.

Can the particles collide with character controllers in unity4, or do you still have to use a plane?

There’s ‘world collision’ setting that makes them to collide with all colliders, so no planes needed.