Nicolas Heluani

paulprk
Hey. Usually after clustering you'd create constraints. For example stronger constraints for objects within the cluster and weaker constraints between the clusters. Otherwise you might end up with concave geometry and bullet will not be happy.

Theoretically you could unpack it and pack it based on the cluster attribute you created. But this depends on what you are trying to achieve I guess.

Yes, Thank you. I think you understood my rather fuzzy question. I was indeed wondering about workflow in essence and I was arriving at the same conclusion. In my specific case I am trying to mix mortar and brick,where the brick will later be replaced by highly detail geo. and the mortar remain the same. So I think I will use a combination of repacking the bricks mix with some of the mortar to make the sim go faster and constraints to make the break realistically.

PS: there are other steps after the destruction that I am considering as well hence my extra care on the packing and repacking…

Ok here is the simplyfied setup..


Is a basic setup of me trying to understand what is actually clustering…
And if the repacking is necessary to use its benefits… Basically clustering then is a naming technique right?

Nico.

Hi everyone!
I have a question about clustering packed objects.
I create a random cluster attribute and name each group of packed objects by their cluster. So each packed object with the same cluster will have the same name (Cluster1, cluster2, etc.)
I thought Bullet will automatically cluster the packed geo by their name but apparently I am wrong it still treats each point (packed geo) individually.
Do I need to re-pack the already packed geo in order for bullet to interpret them as clusters?
Or is any other way to work with clusters after I packed the geo?
Sorry I cannot add a sample file yet… I will try to set up something tomorrow.

Thanks,
Nico.