ParticleSettings(ID)

base classes — bpy_struct, ID

class bpy.types.ParticleSettings(ID)

Particle settings, reusable by multiple particle systems

active_instanceweight

Type

ParticleDupliWeight, (readonly)

active_instanceweight_index

Type

int in [0, inf], default 0

active_texture

Active texture slot being displayed

Type

Texture

active_texture_index

Index of active texture slot

Type

int in [0, 17], default 0

adaptive_angle

How many degrees path has to curve to make another render segment

Type

int in [0, 45], default 5

adaptive_pixel

How many pixels path has to cover to make another render segment

Type

int in [0, 50], default 3

angular_velocity_factor

Angular velocity amount (in radians per second)

Type

float in [-200, 200], default 0.0

angular_velocity_mode

What axis is used to change particle rotation with time

Type

enum in [‘NONE’, ‘VELOCITY’, ‘HORIZONTAL’, ‘VERTICAL’, ‘GLOBAL_X’, ‘GLOBAL_Y’, ‘GLOBAL_Z’, ‘RAND’], default ‘VELOCITY’

animation_data

Animation data for this data-block

Type

AnimData, (readonly)

apply_effector_to_children

Apply effectors to children

Type

boolean, default False

apply_guide_to_children

Type

boolean, default False

bending_random

Random stiffness of hairs

Type

float in [0, 1], default 0.0

boids

Type

BoidSettings, (readonly)

branch_threshold

Threshold of branching

Type

float in [0, 1], default 0.0

brownian_factor

Amount of random, erratic particle movement

Type

float in [0, 200], default 0.0

child_length

Length of child paths

Type

float in [0, 1], default 1.0

child_length_threshold

Amount of particles left untouched by child path length

Type

float in [0, 1], default 0.0

child_nbr

Number of children per parent

Type

int in [0, 100000], default 10

child_parting_factor

Create parting in the children based on parent strands

Type

float in [0, 1], default 0.0

child_parting_max

Maximum root to tip angle (tip distance/root distance for long hair)

Type

float in [0, 180], default 0.0

child_parting_min

Minimum root to tip angle (tip distance/root distance for long hair)

Type

float in [0, 180], default 0.0

child_radius

Radius of children around parent

Type

float in [0, 100000], default 0.2

child_roundness

Roundness of children around parent

Type

float in [0, 1], default 0.0

child_size

A multiplier for the child particle size

Type

float in [0.001, 100000], default 1.0

child_size_random

Random variation to the size of the child particles

Type

float in [0, 1], default 0.0

child_type

Create child particles

Type

enum in [‘NONE’, ‘SIMPLE’, ‘INTERPOLATED’], default ‘NONE’

clump_curve

Curve defining clump tapering

Type

CurveMapping, (readonly)

clump_factor

Amount of clumping

Type

float in [-1, 1], default 0.0

clump_noise_size

Size of clump noise

Type

float in [1e-05, 100000], default 1.0

clump_shape

Shape of clumping

Type

float in [-0.999, 0.999], default 0.0

collision_collection

Limit colliders to this collection

Type

Collection

color_maximum

Maximum length of the particle color vector

Type

float in [0.01, 100], default 1.0

count

Total number of particles

Type

int in [0, inf], default 1000

courant_target

The relative distance a particle can move before requiring more subframes (target Courant number); 0.01 to 0.3 is the recommended range

Type

float in [0.0001, 10], default 0.2

create_long_hair_children

Calculate children that suit long hair well

Type

boolean, default False

damping

Amount of damping

Type

float in [0, 1], default 0.0

display_color

Display additional particle data as a color

Type

enum in [‘NONE’, ‘MATERIAL’, ‘VELOCITY’, ‘ACCELERATION’], default ‘MATERIAL’

display_method

How particles are displayed in viewport

Type

enum in [‘NONE’, ‘RENDER’, ‘DOT’, ‘CIRC’, ‘CROSS’, ‘AXIS’], default ‘RENDER’

display_percentage

Percentage of particles to display in 3D view

Type

int in [0, 100], default 100

display_size

Size of particles on viewport

Type

float in [0, 1000], default 0.1

display_step

How many steps paths are displayed with (power of 2)

Type

int in [0, 10], default 2

distribution

How to distribute particles on selected element

Type

enum in [‘JIT’, ‘RAND’, ‘GRID’], default ‘JIT’

drag_factor

Amount of air drag

Type

float in [0, 1], default 0.0

effect_hair

Hair stiffness for effectors

Type

float in [0, 1], default 0.0

effector_amount

How many particles are effectors (0 is all particles)

Type

int in [0, 10000], default 0

effector_weights

Type

EffectorWeights, (readonly)

emit_from

Where to emit particles from

Type

enum in [‘VERT’, ‘FACE’, ‘VOLUME’], default ‘FACE’

factor_random

Give the starting velocity a random variation

Type

float in [0, 200], default 0.0

fluid

Type

SPHFluidSettings, (readonly)

force_field_1

Type

FieldSettings, (readonly)

force_field_2

Type

FieldSettings, (readonly)

frame_end

Frame number to stop emitting particles

Type

float in [-1.04857e+06, 1.04857e+06], default 200.0

frame_start

Frame number to start emitting particles

Type

float in [-1.04857e+06, 1.04857e+06], default 1.0

grid_random

Add random offset to the grid locations

Type

float in [0, 1], default 0.0

grid_resolution

The resolution of the particle grid

Type

int in [1, 250], default 10

hair_length

Length of the hair

Type

float in [0, 1000], default 0.0

hair_step

Number of hair segments

Type

int in [2, 32767], default 5

hexagonal_grid

Create the grid in a hexagonal pattern

Type

boolean, default False

instance_collection

Show objects in this collection in place of particles

Type

Collection

instance_object

Show this object in place of particles

Type

Object

instance_weights

Weights for all of the objects in the instance collection

Type

bpy_prop_collection of ParticleDupliWeight, (readonly)

integrator

Algorithm used to calculate physics, from the fastest to the most stable and accurate: Midpoint, Euler, Verlet, RK4

Type

enum in [‘EULER’, ‘VERLET’, ‘MIDPOINT’, ‘RK4’], default ‘MIDPOINT’

invert_grid

Invert what is considered object and what is not

Type

boolean, default False

is_fluid

Particles were created by a fluid simulation

Type

boolean, default False, (readonly)

jitter_factor

Amount of jitter applied to the sampling

Type

float in [0, 2], default 1.0

keyed_loops

Number of times the keys are looped

Type

int in [1, 10000], default 1

keys_step

Type

int in [0, 32767], default 5

kink

Type of periodic offset on the path

Type

enum in [‘NO’, ‘CURL’, ‘RADIAL’, ‘WAVE’, ‘BRAID’, ‘SPIRAL’], default ‘NO’

kink_amplitude

The amplitude of the offset

Type

float in [-100000, 100000], default 0.2

kink_amplitude_clump

How much clump affects kink amplitude

Type

float in [0, 1], default 1.0

kink_amplitude_random

Random variation of the amplitude

Type

float in [0, 1], default 0.0

kink_axis

Which axis to use for offset

Type

enum in [‘X’, ‘Y’, ‘Z’], default ‘Z’

kink_axis_random

Random variation of the orientation

Type

float in [0, 1], default 0.0

kink_extra_steps

Extra steps for resolution of special kink features

Type

int in [1, inf], default 4

kink_flat

How flat the hairs are

Type

float in [0, 1], default 0.0

kink_frequency

The frequency of the offset (1/total length)

Type

float in [-100000, 100000], default 2.0

kink_shape

Adjust the offset to the beginning/end

Type

float in [-0.999, 0.999], default 0.0

length_random

Give path length a random variation

Type

float in [0, 1], default 0.0

lifetime

Life span of the particles

Type

float in [1, 1.04857e+06], default 50.0

lifetime_random

Give the particle life a random variation

Type

float in [0, 1], default 0.0

line_length_head

Length of the line’s head

Type

float in [0, 100000], default 0.0

line_length_tail

Length of the line’s tail

Type

float in [0, 100000], default 0.0

lock_boids_to_surface

Constrain boids to a surface

Type

boolean, default False

mass

Mass of the particles

Type

float in [1e-08, 100000], default 1.0

material

Index of material slot used for rendering particles

Type

int in [1, 32767], default 1

material_slot

Material slot used for rendering particles

Type

enum in [‘DUMMY’], default ‘DUMMY’

normal_factor

Let the surface normal give the particle a starting velocity

Type

float in [-1000, 1000], default 1.0

object_align_factor

Let the emitter object orientation give the particle a starting velocity

Type

float array of 3 items in [-200, 200], default (0.0, 0.0, 0.0)

object_factor

Let the object give the particle a starting velocity

Type

float in [-200, 200], default 0.0

particle_factor

Let the target particle give the particle a starting velocity

Type

float in [-200, 200], default 0.0

particle_size

The size of the particles

Type

float in [0.001, 100000], default 0.05

path_end

End time of path

Type

float in [-inf, inf], default 1.0

path_start

Starting time of path

Type

float in [-inf, inf], default 0.0

phase_factor

Rotation around the chosen orientation axis

Type

float in [-1, 1], default 0.0

phase_factor_random

Randomize rotation around the chosen orientation axis

Type

float in [0, 2], default 0.0

physics_type

Particle physics type

Type

enum in [‘NO’, ‘NEWTON’, ‘KEYED’, ‘BOIDS’, ‘FLUID’], default ‘NEWTON’

radius_scale

Multiplier of diameter properties

Type

float in [0, inf], default 0.01

react_event

The event of target particles to react on

Type

enum in [‘DEATH’, ‘COLLIDE’, ‘NEAR’], default ‘DEATH’

reactor_factor

Let the vector away from the target particle’s location give the particle a starting velocity

Type

float in [-10, 10], default 0.0

render_step

How many steps paths are rendered with (power of 2)

Type

int in [0, 20], default 3

render_type

How particles are rendered

Type

enum in [‘NONE’, ‘HALO’, ‘LINE’, ‘PATH’, ‘OBJECT’, ‘COLLECTION’], default ‘HALO’

rendered_child_count

Number of children per parent for rendering

Type

int in [0, 100000], default 100

root_radius

Strand diameter width at the root

Type

float in [0, inf], default 1.0

rotation_factor_random

Randomize particle orientation

Type

float in [0, 1], default 0.0

rotation_mode

Particle orientation axis (does not affect Explode modifier’s results)

Type

enum in [‘NONE’, ‘NOR’, ‘NOR_TAN’, ‘VEL’, ‘GLOB_X’, ‘GLOB_Y’, ‘GLOB_Z’, ‘OB_X’, ‘OB_Y’, ‘OB_Z’], default ‘VEL’

roughness_1

Amount of location dependent roughness

Type

float in [0, 100000], default 0.0

roughness_1_size

Size of location dependent roughness

Type

float in [0.01, 100000], default 1.0

roughness_2

Amount of random roughness

Type

float in [0, 100000], default 0.0

roughness_2_size

Size of random roughness

Type

float in [0.01, 100000], default 1.0

roughness_2_threshold

Amount of particles left untouched by random roughness

Type

float in [0, 1], default 0.0

roughness_curve

Curve defining roughness

Type

CurveMapping, (readonly)

roughness_end_shape

Shape of endpoint roughness

Type

float in [0, 10], default 1.0

roughness_endpoint

Amount of endpoint roughness

Type

float in [0, 100000], default 0.0

shape

Strand shape parameter

Type

float in [-1, 1], default 0.0

show_guide_hairs

Show guide hairs

Type

boolean, default False

show_hair_grid

Show hair simulation grid

Type

boolean, default False

show_health

Display boid health

Type

boolean, default False

show_number

Show particle number

Type

boolean, default False

show_size

Show particle size

Type

boolean, default False

show_unborn

Show particles before they are emitted

Type

boolean, default False

show_velocity

Show particle velocity

Type

boolean, default False

size_random

Give the particle size a random variation

Type

float in [0, 1], default 0.0

subframes

Subframes to simulate for improved stability and finer granularity simulations (dt = timestep / (subframes + 1))

Type

int in [0, 1000], default 0

tangent_factor

Let the surface tangent give the particle a starting velocity

Type

float in [-1000, 1000], default 0.0

tangent_phase

Rotate the surface tangent

Type

float in [-1, 1], default 0.0

texture_slots

Texture slots defining the mapping and influence of textures

Type

ParticleSettingsTextureSlots bpy_prop_collection of ParticleSettingsTextureSlot, (readonly)

time_tweak

A multiplier for physics timestep (1.0 means one frame = 1/25 seconds)

Type

float in [0, 100], default 1.0

timestep

The simulation timestep per frame (seconds per frame)

Type

float in [0.0001, 100], default 0.0

tip_radius

Strand diameter width at the tip

Type

float in [0, inf], default 0.0

trail_count

Number of trail particles

Type

int in [1, 100000], default 0

twist

Number of turns around parent along the strand

Type

float in [-100000, 100000], default 0.0

twist_curve

Curve defining twist

Type

CurveMapping, (readonly)

type

Particle type

Type

enum in [‘EMITTER’, ‘HAIR’], default ‘EMITTER’

use_absolute_path_time

Path timing is in absolute frames

Type

boolean, default False

use_adaptive_subframes

Automatically set the number of subframes

Type

boolean, default False

use_advanced_hair

Use full physics calculations for growing hair

Type

boolean, default True

use_close_tip

Set tip radius to zero

Type

boolean, default True

use_clump_curve

Use a curve to define clump tapering

Type

boolean, default False

use_clump_noise

Create random clumps around the parent

Type

boolean, default False

use_collection_count

Use object multiple times in the same collection

Type

boolean, default False

use_collection_pick_random

Pick objects from collection randomly

Type

boolean, default False

use_dead

Show particles after they have died

Type

boolean, default False

use_die_on_collision

Particles die when they collide with a deflector object

Type

boolean, default False

use_dynamic_rotation

Particle rotations are affected by collisions and effectors

Type

boolean, default False

use_emit_random

Emit in random order of elements

Type

boolean, default True

use_even_distribution

Use even distribution from faces based on face areas or edge lengths

Type

boolean, default True

use_global_instance

Use object’s global coordinates for duplication

Type

boolean, default False

use_hair_bspline

Interpolate hair using B-Splines

Type

boolean, default False

use_modifier_stack

Emit particles from mesh with modifiers applied (must use same subdivision surface level for viewport and render for correct results)

Type

boolean, default False

use_multiply_size_mass

Multiply mass by particle size

Type

boolean, default False

use_parent_particles

Render parent particles

Type

boolean, default False

use_react_multiple

React multiple times

Type

boolean, default False

use_react_start_end

Give birth to unreacted particles eventually

Type

boolean, default False

use_regrow_hair

Regrow hair for each frame

Type

boolean, default False

use_render_adaptive

Display steps of the particle path

Type

boolean, default False

use_rotation_instance

Use object’s rotation for duplication (global x-axis is aligned particle rotation axis)

Type

boolean, default False

use_rotations

Calculate particle rotations

Type

boolean, default False

use_roughness_curve

Use a curve to define roughness

Type

boolean, default False

use_scale_instance

Use object’s scale for duplication

Type

boolean, default False

use_self_effect

Particle effectors affect themselves

Type

boolean, default False

use_size_deflect

Use particle’s size in deflection

Type

boolean, default False

use_strand_primitive

Use the strand primitive for rendering

Type

boolean, default False

use_twist_curve

Use a curve to define twist

Type

boolean, default False

use_velocity_length

Multiply line length by particle speed

Type

boolean, default False

use_whole_collection

Use whole collection at once

Type

boolean, default False

userjit

Emission locations per face (0 = automatic)

Type

int in [0, 1000], default 0

virtual_parents

Relative amount of virtual parents

Type

float in [0, 1], default 0.0

classmethod bl_rna_get_subclass(id, default=None)

Parameters

id (string) – The RNA type identifier.

Returns

The RNA type or default when not found.

Return type

bpy.types.Struct subclass

classmethod bl_rna_get_subclass_py(id, default=None)

Parameters

id (string) – The RNA type identifier.

Returns

The class or default when not found.

Return type

type

Inherited Properties

bpy_struct.id_data ID.name ID.name_full ID.is_evaluated ID.original ID.users ID.use_fake_user

ID.is_embedded_data ID.tag ID.is_library_indirect ID.library ID.asset_data ID.override_library ID.preview

Inherited Functions

bpy_struct.as_pointer bpy_struct.driver_add bpy_struct.driver_remove bpy_struct.get bpy_struct.is_property_hidden bpy_struct.is_property_overridable_library bpy_struct.is_property_readonly bpy_struct.is_property_set bpy_struct.items bpy_struct.keyframe_delete bpy_struct.keyframe_insert bpy_struct.keys bpy_struct.path_from_id bpy_struct.path_resolve bpy_struct.pop bpy_struct.property_overridable_library_set

bpy_struct.property_unset bpy_struct.type_recast bpy_struct.values ID.evaluated_get ID.copy ID.override_create ID.override_template_create ID.user_clear ID.user_remap ID.make_local ID.user_of_id ID.animation_data_create ID.animation_data_clear ID.update_tag ID.bl_rna_get_subclass ID.bl_rna_get_subclass_py

References

bpy.context.particle_settings BlendData.particles BlendDataParticles.new

BlendDataParticles.remove ParticleSystem.settings