particle Emitter life time of the particules?

Hi,

I’m doing a space invader mini-game for my architectural projet, and I would like to add a fire trail after my rocket.

I’ve done a good one, but, I can’t find how to change the particle life time, check my parameters in the screenshot. My trail is ok, but I just need a really tiny trail (compare the ingame view and the viewport).

Is that a problem for the perfomances ?

Thank’s for your help

Boobi

Firstly, 100 to 500 particle emission is too much for a simple engine fire. Try to keep it at 50 tops.

Change the “Grow” variable to 0.

And finally for giving them a shorter lifetime, play with the min and max energy values.

Also, if I were you, I would use a trail renderer for spaceship engine instead of particles.

Thank’s a lot for your help mate !

Everything’s fine now thank’s to you, and i tried the trail, but it’s doesn’t work because my spaceship doesn’t move except left-right, it’s the background.