jlmaradona Posted December 23, 2010 Share Posted December 23, 2010 Hi evereyone and many thanks to read and help me ,so i have a problem i want to make some Ink like in HarryPotter film (see the picture) ,i have a sphere in smoke container,this sphere emits particles and advect by fluid,when i make the render yes its looks like ink,my problem its the behavior of the particles,they expand so much and the effect needs be stoped i want stay together like the travel along a way and nor expand I tried a chargue,with interact but nothing dont work,please any ideas how i can control the particles?? sorry for my english i can read it but at time to write its other thing Best regards Tinta05.hip 1 Quote Link to comment Share on other sites More sharing options...
goldleaf Posted December 23, 2010 Share Posted December 23, 2010 Pretty sure that effect is done either with shaded volumetrics, or particles advected through volumetric smoke sim. Search around on the forums, also look at the docs on the advect pop and avect particles shelf tool. Miguel Salek also has a nice video using FumeFX and Krakatoa, but the same look can be achieved in Houdini. http://www.msalek.com/fxguide/ink/ Quote Link to comment Share on other sites More sharing options...
jlmaradona Posted December 24, 2010 Author Share Posted December 24, 2010 Hi goldleaf first thank you to report so fast,i think this its the way for simulate the ink are millons of parcticles,render as points,i saw the krakaota video of Miguel and its amazing,but if you see are points and after in this forum, are a test with a palace my problem no its render ,its the behavior of particles because the expanded so much and i want more be together thank you Quote Link to comment Share on other sites More sharing options...
pgrochola Posted December 29, 2010 Share Posted December 29, 2010 (edited) Hi goldleaf first thank you to report so fast,i think this its the way for simulate the ink are millons of parcticles,render as points,i saw the krakaota video of Miguel and its amazing,but if you see are points and after in this forum, are a test with a palace my problem no its render ,its the behavior of particles because the expanded so much and i want more be together thank you That shot was a combination of fluids and live action elements. The fluids were simed using Dneg's propriety fluid solver and rendered using they're voxel renderer. If I were you I'd look at krakaota like has been mentioned. You may also want to check out: http://www.jupiter-jazz.com/particleporn Could be interesting depending on your skill set. Don't write off using live action elements as well, obviously depending on the shot. Mixed with good 3d stuff you can save yourself a lot of trouble. Trust me, that was my shot in your reference Edited December 29, 2010 by pgrochola Quote Link to comment Share on other sites More sharing options...
pberto Posted January 9, 2011 Share Posted January 9, 2011 (edited) If I were you I'd look at krakaota like has been mentioned. You may also want to check out: http://www.jupiter-jazz.com/particleporn Could be interesting depending on your skill set. Hey there, thanks for the words. Indeed ParticlePorn can be easily used with Houdini RIBs. We now have an eval for studios who are interesting to test some (particle) porn you can contact us by mail if you are interested. A public eval will follow on our site later on. Best and Happy New Year! Paolo Edited January 9, 2011 by pberto Quote Link to comment Share on other sites More sharing options...
pclaes Posted January 10, 2011 Share Posted January 10, 2011 The ParticlePorn dso looks very interesting! In regards to rendering many particles, this might be interesting as well. Also it's using mantra. I can't wait to have a go at it myself. Considering he is sharing the source code I really want to learn from it and adapt it. http://www.sidefx.com/index.php?option=com_forum&Itemid=172&page=viewtopic&p=99868#99868 I think we should do some testing and improve on it, and then see if sidefx would make it part of houdini . At least that's what I want to do. Quote Link to comment Share on other sites More sharing options...
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