poppy Posted July 28, 2013 Share Posted July 28, 2013 Hi, Is there a way to achieve this effect in H? https://vimeo.com/12992186 http://www.fusioncis.com/pr_smorganic.html 2 Quote Link to comment Share on other sites More sharing options...
Skybar Posted July 28, 2013 Share Posted July 28, 2013 Here is an interesting paper on an approach to it: http://vacation.aid.design.kyushu-u.ac.jp/~and/sheetflip/index.html It is probably possible to do something similar in H, I wouldn't know where to start though. Quote Link to comment Share on other sites More sharing options...
Fabiano Berlim Posted July 29, 2013 Share Posted July 29, 2013 There's no fluid software in the market capable to do this effect. CIS Fusion have a great solution, but is not ever close to ideal, since it looks like there's no concern to volume preservation and correct surface tension. The paper that Skybar posted is the best solution so far to flip method, but it relies on a anisotropic meshing system (flat spheres instead of spherical ones), which is currently not supported by OpenVDB or any other software. Quote Link to comment Share on other sites More sharing options...
Pazuzu Posted July 29, 2013 Share Posted July 29, 2013 (edited) Hi, Is there a way to achieve this effect in H? https://vimeo.com/12992186 http://www.fusioncis..._smorganic.html Currently I'm working on a fast and stable solution to this limitation, I'll sold the asset in Orbolt very soon (I'm working on the promo video ). Here is a little example (comparison) of my aeb_FLIP_sheets asset. This test was executed with the solver default settings and a small amount of particles, to ensure that my asset work even at very low resolutions, in this scenarios is like a localized up-rez technique. Edited July 29, 2013 by Pazuzu 2 Quote Link to comment Share on other sites More sharing options...
Guest tar Posted July 29, 2013 Share Posted July 29, 2013 Currently I'm working on a fast and stable solution to this limitation, I'll sold the asset in Orbolt very soon (I'm working on the promo video ). Here is a little example (comparison) of my aeb_FLIP_sheets asset. These tests were executed with the solver default settings and a small amount of particles, to ensure that my asset work even at very low resolutions, in this scenarios is like a localized up-rez technique. http://speedy.sh/ASJ...ts-examples.rar The download doesn't seem to work for os X. Any other way to share it? Quote Link to comment Share on other sites More sharing options...
Pazuzu Posted July 29, 2013 Share Posted July 29, 2013 (edited) The download doesn't seem to work for os X. Any other way to share it? Sorry for that, (this time are Quicktime files) but here is another test. The sheet_tendrils video, forces the tendrils and fills the holes in a more agressive way. sheets.mov sheets_tendrils.mov same_sim_without_asset.mov Edited July 29, 2013 by Pazuzu 2 Quote Link to comment Share on other sites More sharing options...
Guest tar Posted July 29, 2013 Share Posted July 29, 2013 Awesome! Looks magical. Quote Link to comment Share on other sites More sharing options...
lukeiamyourfather Posted July 29, 2013 Share Posted July 29, 2013 There's no fluid software in the market capable to do this effect. CIS Fusion have a great solution, but is not ever close to ideal, since it looks like there's no concern to volume preservation and correct surface tension. Mark at Fusion CI Studios came up with the workflow originally. There's a plugin for it now in RealFlow and has been for a couple versions. It's called the sheeter daemon. True, it's not physically accurate but in order to simulate thin sheets and preserve volume it would take a lot of particles (probably billions). Faking it is the only practical solution for now. Quote Link to comment Share on other sites More sharing options...
Skybar Posted July 29, 2013 Share Posted July 29, 2013 Sorry for that, (this time are Quicktime files) but here is another test. The sheet_tendrils video, forces the tendrils and fills the holes in a more agressive way. Thats very cool. Can't wait to try it! Quote Link to comment Share on other sites More sharing options...
Pazuzu Posted July 29, 2013 Share Posted July 29, 2013 Here is another example, this time without gravity and a more subtle threshold for the hole filling. More examples to come!!! sheets_03.mp4.rar 3 Quote Link to comment Share on other sites More sharing options...
Sifis Posted July 29, 2013 Share Posted July 29, 2013 Looks great, Keep it coming... Quote Link to comment Share on other sites More sharing options...
Fabiano Berlim Posted July 29, 2013 Share Posted July 29, 2013 Awesome!!!! Quote Link to comment Share on other sites More sharing options...
poppy Posted August 3, 2013 Author Share Posted August 3, 2013 wow! Quote Link to comment Share on other sites More sharing options...
galagast Posted August 10, 2013 Share Posted August 10, 2013 looks really cool!! can't wait to see more examples There's no fluid software in the market capable to do this effect. CIS Fusion have a great solution, but is not ever close to ideal, since it looks like there's no concern to volume preservation and correct surface tension. The paper that Skybar posted is the best solution so far to flip method, but it relies on a anisotropic meshing system (flat spheres instead of spherical ones), which is currently not supported by OpenVDB or any other software. I recall seeing an anisotropic meshing mode from the Thinkbox Frost website, although I'm not sure if it's the same anisotropic meshing method mentioned in the paper posted by skybar. Quote Link to comment Share on other sites More sharing options...
Aliencorpse Posted November 6, 2013 Share Posted November 6, 2013 Very cool stuff Quote Link to comment Share on other sites More sharing options...
mishurov Posted December 11, 2013 Share Posted December 11, 2013 There's no fluid software in the market capable to do this effect. CIS Fusion have a great solution, but is not ever close to ideal, since it looks like there's no concern to volume preservation and correct surface tension. The paper that Skybar posted is the best solution so far to flip method, but it relies on a anisotropic meshing system (flat spheres instead of spherical ones), which is currently not supported by OpenVDB or any other software. Implementation of anisotropic method is quite simple, I made one https://github.com/mishurov/anisotropy_matrix But since Houdini uses OpenVDB for surfacing the FLIP, therefore OpenVDB developers should add that algorithm into their library. And there are some perfomance issues to use fastest method for calculation of Single Value Decomposition and so on. 3 Quote Link to comment Share on other sites More sharing options...
yourdaftpunk Posted December 11, 2013 Share Posted December 11, 2013 This achieves with better surface tension calculation what nodes like the sheeter daemon achieve with particle reseeding: Versatile Surface Tension and Adhesion for SPH Fluids http://cg.informatik.uni-freiburg.de/publications/siggraphasia2013/2013_SIGGRAPHASIA_surface_tension_adhesion.pdf http://cg.informatik.uni-freiburg.de/movies/siggraphasia2013/sigasia13_video.mp4 http://cg.informatik.uni-freiburg.de/people/nakinci.htm 2 Quote Link to comment Share on other sites More sharing options...
Popular Post Pazuzu Posted June 15, 2014 Popular Post Share Posted June 15, 2014 Finally I almost done with the development of my custom asset that tries to solve the water sheets and tendrils in a FLIP/PIC sim, at last I've found a method to control the volume gain and break the fluid sheets without deleting particles, even retime effects are possible!!!; Here are some test with some parameter variation, hope you like it. IMG.rar 13 Quote Link to comment Share on other sites More sharing options...
Skybar Posted June 15, 2014 Share Posted June 15, 2014 Cool stuff Alejandro! Quote Link to comment Share on other sites More sharing options...
djwarder Posted June 16, 2014 Share Posted June 16, 2014 Impressive! Will be great to have this as part of the Houdini liquid FX arsenal!! Quote Link to comment Share on other sites More sharing options...
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