Yes something like what happens in a 3d Chat env. But this one is not for a 3d chat app , actually it is for the new game project where at some point the player has to speak and for that speech instead of the sound which consumes more memory I want to display a message which slowly slowly goes up (invert gravity) and disappears after sometime.
I have studied you particle manager (like PhD) and it's great for showing water splatter and for collected systems and I also think it can be used for displaying fire sparks