Hello,

first I want to point out that this software is really amazing. Im trying to learn Houdini over the last couple of days and im stucking at the moment.

I wanted to create rocks which will be scattered on a surface.. I created a point vop for a sphere with noises to get my rock surface.. i linked it in a switch node with different varieties plugged to a copy node with my plane. for the plane i used paint sop to delete the parts where i didnt want to scatter my rocks. that worked pretty well.
Picture: clickme [prntscr.com]

Next i wanted to try out the voronoi and i created a cube which i applied to. this is amazing.
I played much with dynamics and i basically want to combine my voronoi parts to my plane for scattering. like the first screenshot
The problem is my Voronoi sop is one Object. I would like to scatter random parts from it.
Do i need a expression that picks random parts from the voronoi ? but first do i need to split it in parts ?
Picture: clickme [prntscr.com]


Thank you!

If you look in the Geo spreadsheet in primitives, under “name” attribute you will have each piece with it's own piece name.

So with this you can do a bunch of different things to grab your pieces.

For example, put down a blast node and add this @name=piece1 or whatever your piece is called and change it to delete non selected.

You could add a for each loop to do something to each iteration as it will use the piece name attribute to go through each fractured piece of geo… list goes on.