[Sidefx-houdini-list] DOP Impact

Gene Dreitser keyframe at rogers.com
Tue Jan 8 14:14:37 EST 2008

You could try a switch sop to switch between a null and a point to copy the metaball onto -- driving that with the record count of the impacts data.

Since the impacts are transitional, the data won't exist for every frame, thus, when it exists, copy metaballs to points, and when it doesn't, copy to null.



----- Original Message ----
From: Edmond Earl Smith <ees041000 at utdallas.edu>
To: sidefx-houdini-list at sidefx.com
Sent: Tuesday, January 8, 2008 2:05:36 PM
Subject: [Sidefx-houdini-list] DOP Impact

Hey everyone, I'm referencing dynamic collision in SOPS.  Something 
bounces off of a wall and continues to fall to the ground.  I am 
referencing the RBD motion in SOPS and assigning it to a metaball so I 
can use a magnet to deform the wall.  The problem is I can't figure out
how to keep the metaball from continuing to follow the meta after 
impact.  I need the meta to stop at that precise location. I've tried a
number of different solutions but what it has really come down to is 
that I need a record of impact and location but these only last for one
frame.  Any suggestions on how to keep the impact data or different 
ideas of how to get the deforming meta to stop at impact leaving the 
wall dented for the rest of time?

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