Hello guys!

I trying to make default setup for fireworks to emmit rings instead spheres on each explosion, with random rotation of rings.

Any ideas on how do this?

thanks.

I can't give you a detailed answer, but perhaps you could try limiting the velocities of the particles in the y direction?
Another option may be to create a piece of torus shaped geo that emits when the particles reach a certain height?
Without further detail on what you are trying to achieve its hard to come up with suggestions.

i try the Y = 0 , and result is not good, acts like a disk, not a ring..
im investigating new particles in DOPs, so im studying now.

thanks Man!