Jan Walter Schliep

thanks, will try that!

okay, thanks - I will look into that, as this is probably something that I will stumble over more frequently.

For now I simply changed the l-system, instead of creating a group per leaf I now only create three groups via g(rand(i)*3).
That way I don´t have to create goups afterwards.

Hi,

I have a mesh consisting of many leaves, all with different polycount. I used the assemble node to create one group per leaf, so now the mesh has about 100 groups called piece0, piece1 , piece…
I wanted to create three groups from those piece groups - but I haven´t found the right syntax yet. I tried piece0 - piece30, piece0-30, piece {0-30} and a few more, non of them worked so far.
What would be the correct syntax?

Or would there a complete different way, how I could split those leaves into three groups for material assignment?

thanks!