Macha Posted December 9, 2011 Share Posted December 9, 2011 Does anybody know how to reduce vortices in a fluid sim? I am after something like the opposite of the Vortex Confinement slider. I can increase viscosity but it makes the fluid sluggish. I'd like something light and fast without excessive turbulence. Quote Link to comment Share on other sites More sharing options...
mawi Posted December 9, 2011 Share Posted December 9, 2011 Does anybody know how to reduce vortices in a fluid sim? I am after something like the opposite of the Vortex Confinement slider. I can increase viscosity but it makes the fluid sluggish. I'd like something light and fast without excessive turbulence. Try setting it to negative value. Vortex Confinement Instead of using explicit vorticles, the vortex locations can be detected from the velocity field directly. This parameter will cause existing vortices to be boosted by this value, increasing turbulence in the simulation that would otherwise be lost by the grid resolution. Too high a value can cause the simultaion to become unstable and blow up. Negative numbers can be used to suppress vortices and smooth out the simulation - but usually a better solution is just to use a lower resolution grid. The scalar field called “confinement” is also multiplied into the vortex confinement value, allowing you to vary the amount of vortex boosting over space, or using a Gas Ramp, another field. Quote Link to comment Share on other sites More sharing options...
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