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sublune

Cull particles that aren't bound by constraints

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Hey guys :)

I'm currently playing around with Houdini so please excuse any silly questions. At the moment I'm trying to figure out if I can cull/delete any particles that aren't bound by constraints in my sand solver test.

The setup is pretty basic but those pesky particles that fall off like debris aren't what I was trying to achieve; I kinda just wanted it to split into two separate pieces. Not sure how to approach it, but will try to read around it and figure it out. 

Any help would be amazing though!

Thanks in advance :D
 

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Edited by sublune

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Use a blast SOP on primitive group, there is a " popobject1" group, set to "Delete Non Selected"

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Amazing! Thank you :)

Sorry to bother you further but do you know if there is a way to add particles with, say, less that 3 constraints to the popobject group? I've not looked into VEX too much but it seems like an IF statement might work? I'm just not sure of what the syntax would be for the constraints or what node it would be under :/  So, If 'constraints' =>3 then add to group? Then they get blasted too?

No worries if you don't have time though! 

Thanks again :) 

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