br1 Posted April 11, 2013 Share Posted April 11, 2013 Hey guys. I'm loading a sequence of bgeo which have been simulated previously. The simulation took quite a while. I'd like to delete a few pieces that don't behave that well. But as there is a lot of auto fracturing, most of the geometry gets created over time and if for example I delete group 1-100 at frame 200 (the object I want to get rid of for the complete animation), the object pops back later, as more faces have been created and the geometry doesn't belong to that group anymore. Is there an easy fix to that kind of issue ? Quote Link to comment Share on other sites More sharing options...
Annon Posted April 11, 2013 Share Posted April 11, 2013 Well you need to find or create an attribute that is persistent. Like an id attribute (point, prim, whatever). Then you find what value your piece is (say 22054). Create a delete node and set the Expression, not pattern, to something like: $PIECEID == 22054. That's as much as I can give you without seeing your scene or geo. C *that's presuming your id attribute is "pieceid"* Quote Link to comment Share on other sites More sharing options...
br1 Posted April 12, 2013 Author Share Posted April 12, 2013 Hey Christian. I quickly made a file to show the issue. Uploading the other project would have been impossible considering the size of the files ! So, in the attached file, as you can see, on piece is red around frame 55. I'd like to get rid of that piece during the full animation, without screwing up the other pieces. I'll have a look at your suggestion and see if I can get it to work. Thanks ! Bruno Quote Link to comment Share on other sites More sharing options...
br1 Posted April 12, 2013 Author Share Posted April 12, 2013 (edited) Well, detail view is your friend ... I just realized that I could use @name= in my blast to delete a specific piece as each piece gets a unique name. Seems to work well. I'll flipbook to be sure ! I attached the modified example file just in case someone is interested. Edited April 12, 2013 by br1 Quote Link to comment Share on other sites More sharing options...
Annon Posted April 12, 2013 Share Posted April 12, 2013 Thumbs up! Quote Link to comment Share on other sites More sharing options...
br1 Posted April 12, 2013 Author Share Posted April 12, 2013 (edited) Looks like the file wasn' t attached. Another try here ! delete_fracture_group_fix.hip Edited April 12, 2013 by br1 Quote Link to comment Share on other sites More sharing options...
Follyx Posted April 16, 2013 Share Posted April 16, 2013 also on the SFX tutorial site is a masterclass for Bullet. There is an example for exact your need with a bridge. Try it out Quote Link to comment Share on other sites More sharing options...
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