gpapaioa Posted July 28, 2015 Share Posted July 28, 2015 (edited) I am doing a container fill up where the emitter is below the surface, so I am introducing divergence. The container fills up OK but the volume of the fluid keeps rising even after I stop emission. Tried to edit the default reseeding values but it didnt help. Any ideas anyone? Thank you. Edited July 28, 2015 by gpapaioa Quote Link to comment Share on other sites More sharing options...
old school Posted July 28, 2015 Share Posted July 28, 2015 Are you evaporating the divergence field as well? The divergence field will continue to be applied directly to the Project Non-Divergent DOP and will do exactly what you are experiencing: continue to expand the fluid. Quote Link to comment Share on other sites More sharing options...
gpapaioa Posted July 28, 2015 Author Share Posted July 28, 2015 No I am not. I am only adding divergence as an attribute as I emit the particles. How should I set up the evaporation? Quote Link to comment Share on other sites More sharing options...
gpapaioa Posted July 28, 2015 Author Share Posted July 28, 2015 Use some geometry to create a zero-value divergence field and source it on the Volume Velocity tab on the FLIP solver? Quote Link to comment Share on other sites More sharing options...
old school Posted July 28, 2015 Share Posted July 28, 2015 Add a Gas Dissipate DOP to the merge DOP in to the last right most input of the Pyro Solver DOP. Set it up to dissipate the divergence field exactly by that name. Set up the parameters to evaporate over time. Quote Link to comment Share on other sites More sharing options...
gpapaioa Posted July 28, 2015 Author Share Posted July 28, 2015 Brilliant idea but for some reason it doesn't work.. Its a FLIP solver but from what I read on the help files, this micro solver works for both.. Quote Link to comment Share on other sites More sharing options...
gpapaioa Posted July 29, 2015 Author Share Posted July 29, 2015 I got it solved. By using a POP VOP in the sourcing and reducing the divergence attribute. I should treat it as a particle attribute NOT as a field. Thank you for your time old school. Quote Link to comment Share on other sites More sharing options...
Christian Johansson Posted August 23, 2018 Share Posted August 23, 2018 gpapaioa Any chance you could show how you decreased divergence using POP VOP? I am battling the same problem right now. Cheers, Christian Quote Link to comment Share on other sites More sharing options...
gpapaioa Posted August 24, 2018 Author Share Posted August 24, 2018 Here's a quick setup for you. Let me know if you any questions. div_sample.hiplc 2 Quote Link to comment Share on other sites More sharing options...
Christian Johansson Posted August 24, 2018 Share Posted August 24, 2018 Hey gpapaioa, thanks for setting that scene up, super useful man. Learned a lot from it, so thank you! Cheers, Christian Quote Link to comment Share on other sites More sharing options...
Christian Johansson Posted August 24, 2018 Share Posted August 24, 2018 one question though, how is the attribwrangle in the flip_source going from 0.5 to 0? I see you're turning off the popwrangle in flip_sim at frame 96, are those connected? Quote Link to comment Share on other sites More sharing options...
Christian Johansson Posted August 24, 2018 Share Posted August 24, 2018 (edited) ah wait. you're activating the popwrangle at 96 turning the div to 0. @Div is a global variable, yeah? Now I think it all makes sense. Edited August 24, 2018 by Christian Johansson Quote Link to comment Share on other sites More sharing options...
gpapaioa Posted August 24, 2018 Author Share Posted August 24, 2018 Yeap. You can add POP nodes on the Particle Velocity input at the FLIP solver and mess with the simulation particles. For proper results, dont deactivate the popwrangle, try to animate if from 0.5 to 0. Quote Link to comment Share on other sites More sharing options...
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