How to Fracture and destruct a key frame animated object(packed)?

[jakigui]

Guys I want to fracture and destruct a key frame animated object. Once I hit RDB fractured object(packed) my object falls down instead go with the key framed animation. How can I make my object go with the key framed animation when it is a rdb fractured object?

 

 

pls help

 

Thanks.

fracturing a keyframe animated object.hipnc

[davpe]

hi, I think from principle you cant really have both an keyframed animation and a simulation on the object at once. you can do a workaround however: animate your object and bring it to DOP as an static rbd. at certain point you can tell it to become an active rbd (by overriding "active" attribute), inheriting the position and the velocity from the keyframe animation. after caching it out you can hand animate it further.

[jakigui]

is it possible to who me that in my hip file? I am still learning houdini kind of confused.

[old school]

Have a look at the attached file. Maybe this technique will hold up. Let me know if it doesn't.

 

It uses the new Point Deform SOP and the new Split SOP to switch between deforming passive colliders and active RBD objects. 

progressive_deforming_disintegration_v001.hip

[jakigui]

Thanks old school. is there a way to do this using trail sop? coz I dont understand how the point deform sop works correctly.