Houdini RBD Secondary Fracture

Secondary Fracture in Houdini 18 using RBD solver and constraints...

I have used three techniques to do this

1 DOP SOP fracture ( where I am fracturing inside Dynamics operator using SOP solver )

2 DOP DOP name ( switching name inside Dynamics operator using SOP solver )

3 DOP SOP Constraint ( changing strength inside Dynamics operator using SOP solver )