Ogre Forums

ParticleFX is getting quite good!
One last missing feature which is very common: allowing a particle to emit particles from another emitter.
This is the only way to create smoke or fire trails, good explosions, pixie dust from other particles, and a variety of other effects.

Example:
ParticleSystemA would spawn 10 particles in every direction, with some gravity, displaying a flare billboard.
At each frame, ParticleSystemFire would spawn almost static fire particles at the position of each particle of ParticleSystemA. The result would be a fire trail looking like a parabola.
ideally, a third emitter ParticleSystemSmoke, would also spawn particles at each ParticleSystemA position with a smoke texture.

Or is there a way to do it programmatically in Ogre?
S.

you mean like the fireworks sample:

If I understand correctly, the fireworks sample starts an emitter at the death of a particle.
In order to create trails/plumes, you need to spawn particles during the life/update of the parent particle.

If you wanted to do a real firework sample, you'll need to be able to create a rocker trail:
-the rocket ( particle) moves to the top, and during its life, spawn other particles each frame at its position (the rocket trail)
-when the rocket particle dies, it starts the firework explosions: a lot of particles going in each direction (this part you can do with the current particleFX)
-each one of those particles could spawn other particles during its life to create a trail

A picture to illustrate:

thanks! that makes the difference clear.

Yes, this feature is currently missing. You could manually create an emitter and update its position based on the position of a specific particle in a frameStarted listener.
This is not convenient though. I will have to look what is needed to make this work easily.

You should probably create an issue for this on github, so it does not get lost.

Its been a while, but I have a vague memory that the particle universe plugin has this feature?
https://wiki.ogre3d.org/Particle+Universe+plugin

Yes it does!

But I'm using particleFX for my project, and the only big missing feature us this one in my opinion.
For a while I was using the 2 engines, but I decided to stop using Particle Universe for several reasons.
S.