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RealFlow's scene-related simulation options are located here:

 

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To change the parameters of this tab on a global level use the → "Preferences - Simulation: General" dialogue.

 

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General (A)

FPS Output

The simulation's frame rate.

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Here you specify how many cores will be used for your simulations. Please also take a look at → “Quick Quick Start Configuration – Number of Simulation Threads” - Threads and Substepsfor more information.

Processors

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When enabled RealFlow will always use the maximum number of available threads. Please also take a look at → “Quick Start Configuration - Threads and Substeps” for more information.

Stepping (B)

MIN substeps

Specify the minimum number of simulation steps for → standard particle fluids:

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Specify the maximum number of simulation steps for → standard particle fluids:

  • Higher values increase simulation time, but also avoid instabilities.
  • For a fixed number of substeps use equal values for “MIN substeps” and “MAX substeps”.
  • Decrease this value if “FPS Output” is large – you will see a suggestion in the → “Messages” panel.

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