art3mis Posted August 10, 2017 Share Posted August 10, 2017 Hi Creating a simple voronoi fracture test with gravity. I can achieve a 'staggered' top down activation, but what I would like instead is to have activation based on the size or density of individual fragments. Smaller pieces fall first followed by larger ones. I assume some variation of this has been asked, solved previously but after a search didn't find anything. Can anyone help? Quote Link to comment Share on other sites More sharing options...
Hartman- Posted August 10, 2017 Share Posted August 10, 2017 Hey! Yeah, look at the hip file I've attached. I'm using a sop solver with a single wrangle that gets piped into the rbd solver, post or pre solve, doesn't matter. If you are calculating mass in the rbd object, then you should have a good range of values to use in that wrangle. I'm just doing an animated float channel to determine whether or not a piece is active. Hope this helps! RBD_Active_By_Mass.hiplc 1 Quote Link to comment Share on other sites More sharing options...
Yon Posted August 10, 2017 Share Posted August 10, 2017 You could also run your pieces through a for each with a measure sop set to area. That will give you a size attribute effectively. How you use it to execute what you want is next part. Maybe use in Hartman wrangle ( didn't look ). But using area, you could set your active in sops. 1 Quote Link to comment Share on other sites More sharing options...
art3mis Posted August 10, 2017 Author Share Posted August 10, 2017 great info, thanks! Quote Link to comment Share on other sites More sharing options...
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