Masoud Posted April 18, 2020 Share Posted April 18, 2020 (edited) Hello; In Houdini 16.5, I would like to add "viscosity" to a "Particle Fluid" simulation using a noise pattern, so in DOP I add a "POP-VOP" node (and AANoise in it ... ) after "Source Volume" which doesn't work. Where could I apply noise to the viscosity? Thanks for helping. Viscosity.hip Edited April 18, 2020 by Masoud Quote Link to comment Share on other sites More sharing options...
thebrettwalter Posted April 18, 2020 Share Posted April 18, 2020 bypass the fit and you got noisey viscosity.... looks like your fit is pushing visc values into positive ++ Quote Link to comment Share on other sites More sharing options...
Masoud Posted April 18, 2020 Author Share Posted April 18, 2020 26 minutes ago, thebrettwalter said: bypass the fit and you got noisey viscosity.... looks like your fit is pushing visc values into positive ++ I think I should use the "fit" because "Anti-Aliased Noise" creates an output from -0.5 to 0.5 and I also need the viscosity from 1 to 500. Quote Link to comment Share on other sites More sharing options...
thebrettwalter Posted April 18, 2020 Share Posted April 18, 2020 i think by the scale of your generated geometry, with such high values multiplying a low frequency noise pattern you're not gonna see a lot of variation. Bind your visc out to Cd to visualise your noise pattern in dops. Quote Link to comment Share on other sites More sharing options...
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