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DomainFluidSettings(FluidSettings)

base classes — bpy_struct, FluidSettings

class bpy.types.DomainFluidSettings(FluidSettings)

Fluid simulation settings for the domain of a fluid simulation

compressibility

Allowed compressibility due to gravitational force for standing fluid (directly affects simulation step size)

Type :float in [0.001, 0.1], default 0.0
end_time

Simulation time of the last blender frame (in seconds)

Type :float in [0, 100], default 0.0
filepath

Directory (and/or filename prefix) to store baked fluid simulation files in

Type :string, default “”
fluid_mesh_vertices

Vertices of the fluid mesh generated by simulation

Type :bpy_prop_collection of FluidMeshVertex, (readonly)
generate_particles

Amount of particles to generate (0=off, 1=normal, >1=more)

Type :float in [0, 10], default 0.0
gravity

Gravity in X, Y and Z direction

Type :float array of 3 items in [-1000.1, 1000.1], default (0.0, 0.0, 0.0)
grid_levels

Number of coarsened grids to use (-1 for automatic)

Type :int in [-1, 4], default 0
memory_estimate

Estimated amount of memory needed for baking the domain

Type :string, default “”, (readonly)
partial_slip_factor

Amount of mixing between no- and free-slip, 0 is no slip and 1 is free slip

Type :float in [0, 1], default 0.0
preview_resolution

Preview resolution in X,Y and Z direction

Type :int in [1, 100], default 0
render_display_mode

How to display the mesh for rendering

  • GEOMETRY Geometry, Display geometry.
  • PREVIEW Preview, Display preview quality results.
  • FINAL Final, Display final quality results.
Type :enum in [‘GEOMETRY’, ‘PREVIEW’, ‘FINAL’], default ‘GEOMETRY’
resolution

Domain resolution in X,Y and Z direction

Type :int in [1, 1024], default 0
simulation_scale

Size of the simulation domain in metres

Type :float in [0.001, 10], default 0.0
slip_type
  • NOSLIP No Slip, Obstacle causes zero normal and tangential velocity (=sticky), default for all (only option for moving objects).
  • PARTIALSLIP Partial Slip, Mix between no-slip and free-slip (non moving objects only!).
  • FREESLIP Free Slip, Obstacle only causes zero normal velocity (=not sticky, non moving objects only!).
Type :enum in [‘NOSLIP’, ‘PARTIALSLIP’, ‘FREESLIP’], default ‘NOSLIP’
start_time

Simulation time of the first blender frame (in seconds)

Type :float in [0, 100], default 0.0
surface_noobs
Type :boolean, default False
surface_smooth

Amount of surface smoothing (a value of 0 is off, 1 is normal smoothing and more than 1 is extra smoothing)

Type :float in [0, 5], default 0.0
surface_subdivisions

Number of isosurface subdivisions (this is necessary for the inclusion of particles into the surface generation - WARNING: can lead to longer computation times !)

Type :int in [0, 5], default 0
tracer_particles

Number of tracer particles to generate

Type :int in [0, 10000], default 0
use_reverse_frames

Reverse fluid frames

Type :boolean, default False
use_speed_vectors

Generate speed vectors for vector blur

Type :boolean, default False
use_time_override

Use a custom start and end time (in seconds) instead of the scene’s timeline

Type :boolean, default False
viewport_display_mode

How to display the mesh in the viewport

  • GEOMETRY Geometry, Display geometry.
  • PREVIEW Preview, Display preview quality results.
  • FINAL Final, Display final quality results.
Type :enum in [‘GEOMETRY’, ‘PREVIEW’, ‘FINAL’], default ‘GEOMETRY’
viscosity_base

Viscosity setting: value that is multiplied by 10 to the power of (exponent*-1)

Type :float in [0, 10], default 0.0
viscosity_exponent

Negative exponent for the viscosity value (to simplify entering small values e.g. 5*10^-6)

Type :int in [0, 10], default 0
viscosity_preset

Set viscosity of the fluid to a preset value, or use manual input

  • MANUAL Manual, Manual viscosity settings.
  • WATER Water, Viscosity of 1.0 * 10^-6.
  • OIL Oil, Viscosity of 5.0 * 10^-5.
  • HONEY Honey, Viscosity of 2.0 * 10^-3.
Type :enum in [‘MANUAL’, ‘WATER’, ‘OIL’, ‘HONEY’], default ‘MANUAL’

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