ParticleSkull Posted October 5, 2016 Share Posted October 5, 2016 Sup guys, I'm trying to make a Fluid pushing a FEM sphere. I've found some information about fluid force + some setting on the flip solver but the FEM object just don't move. I'm clearly doing something wrong. Can anyone help understand what's going on? Thank's, Alvaro FLIP FEM.rar Quote Link to comment Share on other sites More sharing options...
Atom Posted October 5, 2016 Share Posted October 5, 2016 I thought I saw a thread that this was not implemented yet. (I could be wrong). You could fake the force of the fluid on the FEM, write that out as BGEO sequence then bring it back in as an obstacle for the FLIP. Quote Link to comment Share on other sites More sharing options...
ParticleSkull Posted October 5, 2016 Author Share Posted October 5, 2016 Alright. I've seen this topic here but what he says doesn't work - at least on my scene. The fake idea might work just fine. Thx Atom. /Alvaro Quote Link to comment Share on other sites More sharing options...
derjcmp Posted October 5, 2016 Share Posted October 5, 2016 (edited) I didnt take a look at the file. Under your flip solver you should see 1 setting called feedback scale, make that 1 and simulate. here Edited October 5, 2016 by derjcmp link Quote Link to comment Share on other sites More sharing options...
ParticleSkull Posted October 5, 2016 Author Share Posted October 5, 2016 Thx derjcmp, i've tried it already with no success. Quote Link to comment Share on other sites More sharing options...
stevegh Posted October 5, 2016 Share Posted October 5, 2016 Why not grab the velocity grid from FLIP and transfer over the velocity to the FEM points? 1 Quote Link to comment Share on other sites More sharing options...
ParticleSkull Posted October 5, 2016 Author Share Posted October 5, 2016 wow Stephen, that would be amazing! Unfortunatelly I don't even know how start it. Can anyone point me a direction on how to achieve this? I totally understand the logic but not the proccess. Quote Link to comment Share on other sites More sharing options...
stevegh Posted October 5, 2016 Share Posted October 5, 2016 Here is a quickie. You will probably want to introduce some sort of drag or multiplication to the incoming FLIP points so it doesn't feel like it weighs nothing. flip_push_fem.hip 1 Quote Link to comment Share on other sites More sharing options...
ParticleSkull Posted October 5, 2016 Author Share Posted October 5, 2016 Awesome, Steven! Look's quite simple, i'll give it a try right now. Thank you very much! Quote Link to comment Share on other sites More sharing options...
ParticleSkull Posted October 5, 2016 Author Share Posted October 5, 2016 perfect, it works just fine! Quote Link to comment Share on other sites More sharing options...
anthonymcgrath Posted October 9, 2016 Share Posted October 9, 2016 look forward to seeing what this does Quote Link to comment Share on other sites More sharing options...
Tex Posted October 9, 2016 Share Posted October 9, 2016 (edited) On 10/6/2016 at 4:40 AM, Atom said: I thought I saw a thread that this was not implemented yet. (I could be wrong). You could fake the force of the fluid on the FEM, write that out as BGEO sequence then bring it back in as an obstacle for the FLIP. I was trying a similar effect the other day, and went the fake route: https://vimeo.com/186079143 Right now FEM only has mutual interaction with other FEM objects, I thought I read somewhere that this is being worked on though. Stephen's trick works a treat thanks for sharing! Edited October 9, 2016 by Tex Quote Link to comment Share on other sites More sharing options...
ParticleSkull Posted October 9, 2016 Author Share Posted October 9, 2016 Wow, pretty cool stuff, John! /Alvaro Quote Link to comment Share on other sites More sharing options...
Tex Posted October 9, 2016 Share Posted October 9, 2016 Thanks dude! Quote Link to comment Share on other sites More sharing options...
anthonymcgrath Posted September 21, 2017 Share Posted September 21, 2017 On 10/9/2016 at 4:51 AM, Tex said: I was trying a similar effect the other day, and went the fake route: https://vimeo.com/186079143 Right now FEM only has mutual interaction with other FEM objects, I thought I read somewhere that this is being worked on though. Stephen's trick works a treat thanks for sharing! i saw this quite a while back ...its still repulsive lol anyhow can you share how you went about this? Is it literally some objects inside slowly trying to push their way out till the outer shape pops open? Then how was the fluid simulated too? overall totally gross - made my wife grimace unapprovingly - she hates the fact i cant stop twiddling with all this fem stuff lol! now i need to get the flip stuff going and grotty displacement sweaty renders going too for extra ew factor Quote Link to comment Share on other sites More sharing options...
Tex Posted September 26, 2017 Share Posted September 26, 2017 Ahha I'll see if I can find the file dude; it's a bit of a shit show though. The big slug was a hollow tet mesh with a strength attribute painted around the split points, and the smaller slugs burst through with an initial velocity on creation - they aren't there the whole time. The fluid was from particles emitted from the FEM pieces post solve. You've probably seen Erik Ferguson's stuff he is the king of messed up FEM: Quote Link to comment Share on other sites More sharing options...
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