PBD sand castle

[Dammerung]

Hey guys i'm trying to do some RnD to make a sand castle collapse and i'm running into problems with the initial state of the sim,

the geo i'm using is not the best shape i guess and i'm struggling to keep the shape of the castle before something collides with it

 

if i use constraint network it just becomes too bouncy and and moves like crazy

 

has anybody done something like this that could point me to a nice workflow to keep my shape stable until collisions occur

 

thanks a bunch

[Cain&Able]

Why don't you make your sim inactive until something collides with it?

[Dammerung]

that is exactly what i'm trying to do but i have to either transfer mass to the particles or use the stopped attribute with a sop solver  but still not getting nice natural looking results i would like to proagate the "active"

status to particles that are close tro other activated particles but not sure how to get that goin any pointewrs would be great 

 

thanks

 

[Netvudu]

without looking at any example scene, my best hint is, in Houdini, "propagate" = point clouds...usually..

[Dammerung]

Hey thanks a bunch yeah i used a sop solver with pcopen and a noise to propagate the att and control the stopped attribute and is working now ,i'll post a scene to see if people got better ways of propagating attributes 

thanks any way