How do I make my particle smoke trail not completely disappear the moment my rocket hits a target?

The effect currently looks stupid, the whole trail vanishes the moment it hits something.

It’s probably getting garbage collected when the parent object (the rocket) is destroyed. I haven’t worked too much with particles, but the solution will probably be along the lines of:

  1. Detach the particle emitter actor from the rocket on impact. Keep the world location the same and it should look fine.
  2. Stop the emitter from emitting further particles.
  3. Destroy the particle emitter actor after the particles have dissipated.

1 is just calling “detach actor from actor”. 2 and 3 can probably be found in particle or cascade documents.

Hope this gets you on the right track.