Hi! I'm trying to do random emission start time(look attachment). I try to randomize start time at popnet sop or at source pop. But nothing happens. The result is the same. Emission is begin at the same moment.
Thanks

POPs can't be stamped like that. It won't create parallel POPs simulations.

You can move the pop network below the copy and do away with the stamping then control the emission in the POP network. You could use varying per sphere attributes to modify the behavior in the POP network.

Thanks! I will try!

Can you put some test scene? Thanks

This is not the end. Next step is a geometry-based randomizing of velocity….

Your next step is pretty simple. You could pipe geometry to Point POP or which is much more efficient to custom VEX SOP. Point SOP or VEX SOP will assign v or N attribute which will be used by Source POP with Initial Velocity set to “Use inherited velocity” or “Add to inherited velocity”. Or for some reasons you can set Initial Velocity to “Set Initial Velocity” and then apply Velocity POP with some expression which will pick up v, N or any other attribute.

Hi Hok! Thanks! I will try to do such trick

PS: greetings from Motherland)) :arrow:

May be I'm asking the question not the right way. I can't make randomness of ANY(inherit velocity works well! Thanks, Hok!) source pop parameter. Could someone put the scene with geometry-based random Life expectancy, Birth rate and Velocity variance as example?

Thanks!

Wish
Could someone put the scene with geometry-based random Life expectancy, Birth rate and Velocity variance as example?

That's not very difficult. I'm not sure what do you want exactly, though.

Hi Miguel! Thanks! That's it!