Paint dripping inspiration

I am trying to model some paint dripping over objects and so far i have not figured out a decent way to do this. i have been playing with kangaroo and collision thus far but one thing i am not getting is the thick mass that acquires on the sphere like in the picture above. also another thing that i do not get is the liquid running past the zero degree edge with gravity the particles fall off around the zero degree mark where as i would like them to act more like paint and continue around the sphere until it gets too weighted at the bottom and falls off.

this may be getting very deep into physical properties of liquids but i would like to try and model this or something similar.

thank you

Replies to This Discussion

Permalink Reply by Daniel Piker on November 1, 2016 at 12:30pm

Hi Matt,

To simulate viscous fluids like this will need more than just collision, and I think would require scripting a custom goal to do it in Kangaroo. It could be an interesting thing to explore. Perhaps starting from the code for the existing SphereCollide goal, one could modify it to include a radius larger than the collision radius, within which particles adhere to each other, along the lines described here: http://nishitalab.org/user/takahashi/ViscousPBF/paper.pdf

Permalink Reply by David Rutten on November 1, 2016 at 12:39pm

Wow... a paper with line numbers. I didn't think it was possible for maths publications to become even less readable than they already were.

Permalink Reply by Ayoub on November 1, 2016 at 2:13pm

If you just want to model this without having a parametric model, I think RealFlow is a good start. It is THE software for fluids and dynamics simulation. You can export to mesh and import it in Rhino.

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