tianurcelay Posted December 6, 2018 Share Posted December 6, 2018 Hi everyone! First post here! I hope you can help me. I'm doing some bubbles emission simulation, and I'm just starting this setup. I want to know if there is a way to control the gravity force (or any force that could work) by the pscale or Cd attribute from the input points in the source. I want the smaller bubbles to stay low or even go slowly down and the big ones to go up. I'll post the hip file too. Sorry for the english, I'm kind of rusty... bubbles.hipnc Quote Link to comment Share on other sites More sharing options...
ikoon Posted December 6, 2018 Share Posted December 6, 2018 Hi! Have you tried to use the @mass point attribute? Quote Link to comment Share on other sites More sharing options...
tianurcelay Posted December 6, 2018 Author Share Posted December 6, 2018 Thanks Ikoon! I don't really know how to use it in rbd, even less when dealing with particles and not packed primitive. I will dig in and see what I can get. Quote Link to comment Share on other sites More sharing options...
Navneet Arora Posted December 7, 2018 Share Posted December 7, 2018 Use a Pop Force node and check use Vex expression and modify using : force*=fit01(rand(@id),0,1); Quote Link to comment Share on other sites More sharing options...
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