breakable string constraint

[qbick]

can someone explain how to achieve the same effect like on video?

[Scratch]

Hmm...I'm not sure if you want to do a fracture/destruction animation or if you want to test out RBD spring constrains (which is what done in the video)

RBD Spring constrain:

basically it is a flexible pin constrain. Imagine pinning/constraining a object with a spring...which is elastic like a damper/shock absorber in a car.

check out the help:

http://www.sidefx.com/docs/houdini12.0/nodes/dop/rbdspringconstraint

or Digital Tutors:

http://www.digitaltutors.com/11/training.php?pid=3464&autoplay=1

in particular this lesson: http://www.digitaltutors.com/11/training.php?vid=3170&autoplay=1

For fracturing tutorials you might want to dig into a topic called voronoi (dynamic) fracturing

Tutorials can be found on Digital Tutors (also in the RBD-Course i mentioned before and in some more).

Dig through the manual searching for fracturing, shattering, breaking. Further, read about RBD fracture and RBD glue object (which come in handy when you deal with fractured geometry).

hope that helps!

cheers!

[bunker]

just use "Limit Length" in RBD Spring Constraint.

can someone explain how to achieve the same effect like on video?

[qbick]

i mean how to generate procedurally those constraints

[bunker]

- store the group number in a point attribute (Python)

- scatter some points on the geometry.

- use a pointcloud lookup to compare the attributes within a radius : if the values are different, store the found group num in another attribute (VEX)

- each point has now 2 attributes, the current group piece and its neighbour.

- create a constraint per point using those 2 attributes (Python)

i mean how to generate procedurally those constraints