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

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  • With a value of 1.0, the fluid will not move more than 1 grid cell the distance of 1 particle diameter in the current time step.
  • With values smaller than 1.0, the fluid can cover a longer distance within a single step – the solver is less strict.
Max neighbors

This parameter is only relevant for → GPU simulations. Dyverso looks for neighbours to create the links and constraints between them. By default, 100 particles will be taken into consideration:

  • The less neighbours, the faster the simulation, but you might see stability problems.
  • We recommend using the pre-adjusted value.
Use Geometry Velocity

When enabled RealFlow will adjust the simulation's substeps to get a correct fluid-object interaction behaviour:

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  • Higher values increase simulation time and can time but also maybe lead to instabilities. We recommend moderate increases of just a few substeps.
  • For a fixed number of substeps use equal values for “MIN substeps” and “MAX substeps”.
  • The default value normally provides the best ratio between speed and accuracy.

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  • Higher values increase simulation time and can time but also maybe lead to instabilities. Try using values around the default setting.
  • For a fixed number of substeps use equal values for “MIN substeps” and “MAX substeps”.
  • The default value normally provides the best ratio between speed and accuracy.
(MIN) iterations ("MIN" only for "Liquid - PBD", not for "Dumb")

Specify the minimum number of simulation cycles:

  • Higher values increase simulation time, but also avoid instabilities.
  • For a fixed number of iterations use equal values for “MIN iterations” and “MAX iterations”.
MAX iterations (

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only for "

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Liquid - PBD")

Specify the maximum number of simulation cycles:

  • Higher values increase simulation time, but also avoid instabilities.
  • For a fixed number of iterations use equal values for “MIN iterations” and “MAX iterations”.
Accuracy (

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only for "

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Liquid - PBD")

This parameter ranges between 0.0 and 1.0. With

  • 0.0 RealFlow quickly finds a solution, but it will not be very accurate
  • 1.0 RealFlow finds a solution that is very close to the exact behaviour, but simulation time will increase.

OpenCL (C)

Due to the almost infinite number of hardware combinations we cannot guarantee that RealFlow's OpenCL features are available for any computer or graphic device. Please read the → "GPU" chapter if you encounter performance issues.

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Please read the → "GPU" chapter if you encounter performance issues.

Use OpenCL-CUDA

You can activate this option if your graphics card has CUDA capability, otherwise it is greyed out.

CUDA Information...

Open a comprehensive summary about your GPU's CUDA features and capabilities.

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