Messing around with particles

since particle effects look nice, i played around with the paricle tests.

i wanted to build a few explosions effects, including a ring-like explosion, but i failed. i want the particles to keep their y-position. can this be done somehow?

and, how can i stop the emitting and restart the explosion? as soon as the particles start to vanish, the explision randomly spits out single particles.

For the y constraint, you could either carefully set the release direction and min/max angles and rotation, or you could make a custom particle influence that adjusts the particle's center position to stay on a certain Y plane.

For the vanish/restart, set the particle controller's repeat type to CLAMP and use forceRespawn whenever you want to restart it.