hello! im creating a planet being absorbed by a black hole that is inside of the same planet, i create dynamic sphere that starts breaking and being absorbed to the place where the black hole is (as u can see in the picture) and i export it, now i want to emit particles from the pieces that are activated, so i decide to delete the ones that are not activated and use these as an emitter, but particles didnt get emmited from that geometry, anyone knows why?

Have you tried using the Debris tool? The time to apply it would be before you export it but after you have fractured it. The Debris tools creates bursts of particles along the edges of the fractured pieces.

i've think that option but is not gonna overcharge a lot the simulation??? but i can try it! thanks!