Persistent Grouping [SOLVED]

[GlennimusPrime]

I have a procedural group that is adding and removing object to the group over time, but I'd like the objects to stay in that group all the way through to the last frame on the timeline.

I found a couple of example files, but they both showed using a bound object to group which is slightly different to what I'm trying to do.

I'm not very familiar with the Solver SOP at all and just can't get my head around keeping these objects inside the group!

What I'm trying to achieve:

I have a bunch of spheres randomly scaling over time.
I've used a Measure SOP to calculate the area of the spheres.
I group the objects that have a small area size.
later I want to time freeze on the last frame and then delete those small objects.

Hip file attached

Stay_Deleted.hiplc

Edited November 15, 2021 by GlennimusPrime

[GlennimusPrime]

Maybe I can ask this in another way that could help.

If I have a bunch of spheres changing colour from black to red and back to black again over time, how can I make the colour change to red stay permanent, instead of going back to black again?

[vicvvsh]

 

7 hours ago, GlennimusPrime said:

Maybe I can ask this in another way that could help.

If I have a bunch of spheres changing colour from black to red and back to black again over time, how can I make the colour change to red stay permanent, instead of going back to black again?

Hi,

in your case a Solver sop is the way to go.

 

 

Stay_Deleted_01.hipnc

Edited November 14, 2021 by vicvvsh

[GlennimusPrime]

Thank so much for this @vicvvsh I haven't quite got my head around the Solver SOP yet, and there are a few VEX terms in your wrangle here I haven't seen before, but this is a great help and something for me to learn more about!

 

Cheers,

 

- Glenn