sadhu

Hi Ryuji,
Instead of repeating the process for points repeat it for the grid.
Sorry i can not post the file.
Try these steps
1. Run foreach in each number mode. Connect grid to the first input of foreach sop and scatter node to the second.
2.In numrenge2 para on foreach node write the number how many times you want to repeat the process (use npoints expression to find out the total number of points created by scatter sop)
3.Turn off merge results parm on foreach sop
4.In side foreach sop, 1st aux input gives you grid and the 2nd gives all the scatter points.
5. Connect delete sop after the 2nd aux sop, operation delete non selected , entity points.
delete by expression $PT == stamp(“..”,“FORIDXVALUE”,0) . It will select poin based on iteration number from 2nd aux input.
6. Copy sphere on it.
7. Perform the cookie operation.

Hope this helps !

Will this help?

Just to start fall of objs from center , use active value dop with condition $OBJID<$F*n , where n is number of objects you want to fall down per frame.

In sop play with sort sop, just choose different methods of point sort and see how it affects the dop output.