basic particles turn on and off randomly

[resort-sand]

Thanks Prof
My bad for the thread, I didn't want to flood with many threads, will keep in my mind
two questions:
how we can make the birth behaves the same, instead of just popping out, I want to animate the radius progressively until it reaches the radius value
how to tell mograph to copy the radius to the scale of the clones ? I saw you created one but in the scene it stays constant
Best

[resort-sand]

I think I found the answers for both questions
if it stalls again, I will start a new thread
All the best

[Dr. Sassi]

You're very welcome, resort-sand.

I just after posting saw your answer, I had already set this up, then I had to join a meeting. Sounds great
I will share my prepared post anyway.

The simplest way is just a Data mapper, lifetime to Radius. But that is not along your requests, as it sets the fade in, fade out to various lenght, if the life time varies. An exact frame number for all individual particles is not given. If that is not a problem, here is the simplest way.
I left an alternative in it, with a ramp.
CV4_2026_drs_26_PAdm_01.c4d

The beginning is simpler, as all particles start with the first frame; they are "born" and age from there.

To keep it simple, that can be done with a Condition.

Example:
CV4_2026_drs_26_PAst_03.c4d

When the growth period is over, it gets moved to the next one, which is the same as the one above, discussed with the problem of variance regarding lifetime.

Is this working for you?

Cheers