Hello everyone,

I am making a grains simulation that has a very long object (red box) for particles. Is it possible to make grains appear during the sim time (while my ship is getting closer to the grains), instead of showing all particles at the same time? That way I could save some sim time and instead of 5mil points, simulate around 1mil that is needed at that moment.

I'll attach a low res sim video of what I have for now, so that it would be easier to understand what I mean.

I think this can help. please give a try.
splitting after sourcing grain can keep the points as static if needed
before can help managing points even not to source
edit:
pop awaken node in dop's is a simplest way I see to activate the grains
@stopped attrib is solution to save time attach is the example demonstrating it
@mass attrib also used to deactivate grains when mass is set to 0