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Constraints and animated geo


victorrijo

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Hi everyone,

I was playing around with animated geometry and I encountered the following issue. I created this simple scene to show the problem I was getting with two ground planes, one of them is animated and on top of them I have a few boxes connected with a constraint to each other. The ground planes have a constraint to the objects touching them. 

I want the constraint of the boxes (red constraint) to start breaking when the ground plane moves.  Right now I’m getting a weird behavior, where the constraint connecting the ground and the boxes is expanding (yellow constraint). When I remove the constraint connecting the boxes (red constraint), it seems to work fine but of course the boxes have not constraint and thats not exactly what I want. 

Here are two flipbooks and the hip file. Any help will be appreciated.  

rip_apart_constraint_01.hipnc

constraint_issue_a.mov

constraint_issue_b.mov

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