hello forum,

I have a scene where a grid is pre-fractured using voronoi. and I have assigned one point to the center of each piece and then I am sending the points to POP network for animation. in order to animate the pieces I have a sphere/trigger as a bounding object and every point/piece is included will be animated using some forces. The problem is back to sop network, I want to group the pieces, not the point, but the piece which are selected/animated.
how can I do that?

As you can see in the network, the pieces are comming together with a coy sop. From the right, as template I have all the point from the popNet, from the left side I have pieces where with the help of stamp the right piece goes to the right point. I am explain that in order to understand how work, after the copy all the groups are lost. But I want the group to exist after the copy sop.


cheers

If your only problem is that you're losing the groups, do this:

- remove the existing group sop on the right side of the chain
- add a point sop on the right side of the chain, in point colour CR do: $PT
- add a partition SOP, set to points, use: group$CR
- when you do your copying, Attribute -> Use Template -> To Point: Cd
- add a partition again after the copy, with the same partition SOP as above, your groups will be back