dchow1992 Posted May 2, 2015 Share Posted May 2, 2015 (edited) Hi all, beginner here. so basically I am working on a destruction shot of a helicopter crashing into a house. The helicopter was animated in maya and brought into houdini as an alembic file. Currently I have it packed and brought into the sim as a deforming static object. I think my issue has to do with how to approach constraining geometry during the simulation..right now I have glue constraints between my geometry but no control on like how aggressively it reacts to the helicopter. In the hip file the geometry lasts for a few frames and then it all flies away. Is there a better way to work regarding bullet sims driven by animated objects? thanks for looking, David EDIT* well, I turned down the half life in the glue constraint to a very small number and now it seems a bit better, not sure why or how it worked though bullet_example.zip Edited May 3, 2015 by dchow1992 Quote Link to comment Share on other sites More sharing options...
Rio.Dominia Posted May 3, 2015 Share Posted May 3, 2015 I use a cone constraint, Maybe it's help! houseExample.hipnc Quote Link to comment Share on other sites More sharing options...
dchow1992 Posted May 3, 2015 Author Share Posted May 3, 2015 (edited) thanks Rio that looks really good, in the connect adjacent pieces did you just delete everything above connect nearest points? and is adding a start frame to the overwrite with SOP flag in the constraint networks better than just setting it to 0? I have a hunch that the glue constraints were freaking out by themselves because they only break on collisions or something like that Edited May 3, 2015 by dchow1992 Quote Link to comment Share on other sites More sharing options...
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