myke3d Posted November 26, 2015 Share Posted November 26, 2015 Hi Guys, I'd like to know a way to control different forces, based on some attributes. I find is very easy to control Pop Forces based on position or velocity or Cd attributes... but I want to have this control using for example Gas Turbulence or Gas Surface Tension to control my fluid... Imagine I have one liquid that is flowing along a curve and after TX > 5 it will increase surface tension and turbulence. How would you do that? Quote Link to comment Share on other sites More sharing options...
woodenduck Posted November 26, 2015 Share Posted November 26, 2015 Turbulence is just a property of the velocity field. You would need to create a custom vel field and add it to your sim. If you want this to be directly controlled by sop point attributes you could make a setup where you are sourcing a volume from attributes on geometry and then add this to your simulation. For example you could comb the normals on a piece of geo, turn this in to a collision volume (using N as the velocity source attrib) and you will end up with a collisionvel field that conforms to the direction of the normals. I've used this to create fast flowing rapids in a flip sim, for example. WD Quote Link to comment Share on other sites More sharing options...
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