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This page provides information on the Turbulence component.

Overview

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This component adds turbulence that can be controlled. The turbulence can be added in two different ways:

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  • as a divergence-free force (force with circular lines);
  • as pressure.

The turbulence generator is based on fractal-like noise function, similar to the noise texture in Maya.

By default,

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the Turbulence affects all Phoenix Simulator objects in the scene. You can exclude it from interacting with a simulator by adding it to the selection set specified the simulator'

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s Scene Interaction rollout.

 

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titleUI Path: ||Phoenix FG Menu|| > Create > Turbulence

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Parameters

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Create Pressure  | injectMode – Switches between pressure and force mode. While force mode simply adds velocity, pressure mode works in a similar way to the Phoenix Source in Volume Inject mode, adding pressure to the areas displayed in red in the preview. This way the option will generally affect the appearance and behavior of the turbulent effect. Note that if Create Pressure is on, the Turbulence helper will not take into account the fluid density and will uniformly affect all voxels. However, if it's Not in Pressure mode, it will act more strongly on the dense voxels and more mildly on the ones where the channels in the Affect list have lower values.

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  • Valid strings for Affect are: liquid, splash, splashes, foam, air, mist, wetmap, temperature, smoke, fuel, rgb, velocity, viscosity.
  • The names are not case sensitive and spaces are ignored.
  • If Create Pressure is enabled, the Affect list will be ignored as the entire simulation volume will be affected by the pressure force.

 

Preview

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Show Streamlines | partPreview – Affects the preview. When enabled, visualizes the trajectories of several particles.