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Emitter - Children panel

Children are Hair or Emitter particles originating from individual particles. They allow to work with a relatively low amount of Parent particles. Which reduces the calculation effort.

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Children panel

Children panel

Children are Hair or Emitter particles originating from individual particles. They allow to work with a relatively low amount of Parent particles. Which reduces the calculation effort.

Children panel

If you activate children, then the parents are no longer rendered. They can be re-enabled in the Render panel in the Extras subpanel. Parent Particles. By default, parent particles are not rendered because the shape of the children can be quite different from that of their parents.

Children panel - Type None

Child Type

None

None

No children are generated. No settings.

Children panel - Type Simple

Simple

Simple

Children are emitted from the parent position.

EntryWhat it does
Display AmountThe number of children in the 3D Viewport.
Render AmountThe number of children to be rendered.
LengthLength of child paths.
ThresholdAmount of particles left untouched by child path length.
SeedOffset in the random number table for child particles, to get a different randomized result.
SizeA multiplier for children size.
Random SizeRandom variation to the size of child particles
RadiusThe radius in which the children are distributed around their parents. This is 3D, so children may be emitted higher or lower than their parents.
RoundnessThe roundness of the children around their parents. Either in a sphere (1.0) or in-plane (0.0).

Children panel - Type Simple - Clumping subpanel

Children panel - Type Simple - Clumping subpanel
Children panel - Type Simple - Clumping subpanel

Clumping allows as the name says to break the even look, and clump particles together.

Use Clump Curve

Use Clump Curve

Use a Curve instead of parameters to adjust the clumping.

EntryWhat it does
Adding PointsYou can add new curve points by simply left clicking at the curve. Move the mouse to position them where you need it.
Selecting PointsYou can select curve points by clicking at them. Selected points can be moved around. Left click at them, hold the mouse button down and move them to a new location.

The navigation elements at the top are described from left to right.

Zoom in and out

The two buttons with the magnifying glass at it zooms in and out in the curve window.

Clipping
Clipping

Clipping options. Set up clipping for the stroke.

EntryWhat it does
Delete PointsDeletes selected curve points.
ToolsTools is a menu where you can find some curve related tools. · Reset View: Resets the curve windows zoom. · Extend horizontal: Extend the curve horizontally before the first and after the last curve point. · Extend vertical: Extend the curve vertically before the first and after the last curve point. · Reset Curve: Resets the curve to the initial shape.
Vector HandleSet handle type to Vector.
Auto HandleSet handle type to Auto.
Auto Clamped HandleSet handle type to Auto Clamped.
X / Y valuesThe x and y position of the current selected curve point.
Delete PointsDelete the current selected curve point.
TwistNumber of turns around parent along the strand.
EntryWhat it does
ClumpClumping amount along child strands. The children may meet at their tip (1.0) or start together at their root (-1.0).
ShapeForm of Clump. Either inverse parabolic (0.99) or exponentially (-0.99).
TwistNumber of turn around parent along the strand.

Use Clump Curve

Use Clump Curve

Use a Curve instead of parameters to adjust the clumping.

EntryWhat it does
Adding PointsYou can add new curve points by simply left clicking at the curve. Move the mouse to position them where you need it.
Selecting PointsYou can select curve points by clicking at them. Selected points can be moved around. Left click at them, hold the mouse button down and move them to a new location.

The navigation elements at the top are described from left to right.

Zoom in and out

The two buttons with the magnifying glass at it zooms in and out in the curve window.

Clipping
Clipping

Clipping options. Set up clipping for the stroke.

EntryWhat it does
Delete PointsDeletes selected curve points.
ToolsTools is a menu where you can find some curve related tools. · Reset View: Resets the curve windows zoom. · Extend horizontal: Extend the curve horizontally before the first and after the last curve point. · Extend vertical: Extend the curve vertically before the first and after the last curve point. · Reset Curve: Resets the curve to the initial shape.
Vector HandleSet handle type to Vector.
Auto HandleSet handle type to Auto.
Auto Clamped HandleSet handle type to Auto Clamped.
X / Y valuesThe x and y position of the current selected curve point.
Delete PointsDelete the current selected curve point.

Children panel - Type Simple - Clump Noise subpanel

Clump Noise subpanel

Clump Noise subpanel

Creates random clumps around the parent hair.

Clump Noise Size

The size of clump noise.

Children panel - Type Simple - Roughness subpanel

Give the particles a roughness.

Use Roughness Curve

Use Roughness Curve

Use Curve Widget instead of parameters.

EntryWhat it does
Adding PointsYou can add new curve points by simply left clicking at the curve. Move the mouse to position them where you need it.
Selecting PointsYou can select curve points by clicking at them. Selected points can be moved around. Left click at them, hold the mouse button down and move them to a new location.

The navigation elements at the top are described from left to right.

Zoom in and out

The two buttons with the magnifying glass at it zooms in and out in the curve window.

Clipping
Clipping

Clipping options. Set up clipping for the stroke.

EntryWhat it does
Delete PointsDeletes selected curve points.
ToolsTools is a menu where you can find some curve related tools. · Reset View: Resets the curve windows zoom. · Extend horizontal: Extend the curve horizontally before the first and after the last curve point. · Extend vertical: Extend the curve vertically before the first and after the last curve point. · Reset Curve: Resets the curve to the initial shape.
Vector HandleSet handle type to Vector.
Auto HandleSet handle type to Auto.
Auto Clamped HandleSet handle type to Auto Clamped.
X / Y valuesThe x and y position of the current selected curve point.
Delete PointsDelete the current selected curve point.

Roughness

Roughness

Amount of location dependent roughness.

EntryWhat it does
SizeSize of location dependent roughness.
Uniform“Rough End” randomizes path ends (a bit like random negative clumping). Shape may be varied from <1 (parabolic) to 10.0 (hyperbolic).
SizeIt is based on children location so it varies the paths in a similar way when the children are near.
Endpoint“Rough End” randomizes path ends (a bit like random negative clumping). Shape may be varied from <1 (parabolic) to 10.0 (hyperbolic).
Shape“Rough End” randomizes path ends (a bit like random negative clumping). Shape may be varied from <1 (parabolic) to 10.0 (hyperbolic).
RandomIt is based on a random vector so it is not the same for nearby children. The threshold can be specified to apply this to only a part of children. This is useful for creating a few stray children that will not do what others do.
SizeIt is based on a random vector so it is not the same for nearby children. The threshold can be specified to apply this to only a part of children. This is useful for creating a few stray children that will not do what others do.
ThresholdIt is based on a random vector so it is not the same for nearby children. The threshold can be specified to apply this to only a part of children. This is useful for creating a few stray children that will not do what others do.

Children panel - Type Simple + Interpolated - Kink subpanel

Children panel - Type Simple + Interpolated - Kink subpanel
Children panel - Type Simple + Interpolated - Kink subpanel

With Kink you can rotate the children around the parent.

Kink Type

Kink Type

Nothing

Deactivated.

Curl, Radial, Wave, Braid

Curl, Radial, Wave, Braid
Curl, Radial, Wave, Braid

Curl - Children grow in a spiral around the parent hairs.

Radial - Children form around the parent a wave shape that passes through the parent hair.

Wave - Children form a wave, all in the same direction.

Braid - Children braid themselves around the parent hair.

EntryWhat it does
AmplitudeThe amplitude of the offset.
ClumpHow much clump effects kink amplitude.
FlatnessHow flat the hairs are.
FrequencyThe frequency of the offset (1/total length). The higher the frequency the more rotations are done.
ShapeWhere the rotation starts (offset of rotation).

Spiral

Spiral

Generates a spiral at the end of each hair.

EntryWhat it does
AmplitudeThe amplitude of the offset.
Randomize AmplitudeGive the amplitude a random variation.
Axis
Axis

Which axis to use for offset.

EntryWhat it does
Randomize AxisRandomize the orientation.
FrequencyThe frequency of the offset (1/total length). The higher the frequency the more rotations are done.
ShapeWhere the rotation starts (offset of rotation).
StepsExtra steps for resolution of special kink features.

Children panel - Type Interpolated

Children panel - Type Interpolated
Children panel - Type Interpolated

Children are emitted between the Parent particles on the faces of a mesh. They interpolate between adjacent parents. This is especially useful for fur, because you can achieve an even distribution. Some of the children can become virtual parents, which are influencing other particles nearby.

EntryWhat it does
Display AmountThe number of children in the 3D Viewport.
Render AmountThe number of children to be rendered.
LengthLength of child paths.
ThresholdAmount of particles left untouched by child path length.
SeedOffset in the random number table for child particles, to get a different randomized result.
Virtual ParentsRelative Amount of virtual parents.
Long HairBelongs to Hair particles. Calculate children that suit long hair well.

Children panel - Type Interpolated - Parting subpanel

Children panel - Type Interpolated - Parting subpanel
Children panel - Type Interpolated - Parting subpanel

This panel belongs to Hair particles.

EntryWhat it does
PartingCreates parting in the children based on parent strands.
MinMinimum root to tip angle. Tip distance / root distance for long hair.
MaxMaximum root to tip angle. Tip distance / root distance for long hair.

Children panel - Type Interpolated - Clumping subpanel

Children panel - Type Interpolated - Clumping subpanel
Children panel - Type Interpolated - Clumping subpanel

Clumping allows as the name says to break the even look, and clump particles together.

Use Clump Curve

Use Clump Curve

Use a Curve instead of parameters to adjust the clumping.

EntryWhat it does
Adding PointsYou can add new curve points by simply left clicking at the curve. Move the mouse to position them where you need it.
Selecting PointsYou can select curve points by clicking at them. Selected points can be moved around. Left click at them, hold the mouse button down and move them to a new location.

The navigation elements at the top are described from left to right.

Zoom in and out

The two buttons with the magnifying glass at it zooms in and out in the curve window.

Clipping
Clipping

Clipping options. Set up clipping for the stroke.

EntryWhat it does
Delete PointsDeletes selected curve points.
ToolsTools is a menu where you can find some curve related tools. · Reset View: Resets the curve windows zoom. · Extend horizontal: Extend the curve horizontally before the first and after the last curve point. · Extend vertical: Extend the curve vertically before the first and after the last curve point. · Reset Curve: Resets the curve to the initial shape.
Vector HandleSet handle type to Vector.
Auto HandleSet handle type to Auto.
Auto Clamped HandleSet handle type to Auto Clamped.
X / Y valuesThe x and y position of the current selected curve point.
Delete PointsDelete the current selected curve point.
EntryWhat it does
ClumpClumping amount along child strands. The children may meet at their tip (1.0) or start together at their root (-1.0).
ShapeForm of Clump. Either inverse parabolic (0.99) or exponentially (-0.99).

Clump Noise subpanel

Clump Noise subpanel

Creates random clumps around the parent hair.

Clump Noise Size

The size of clump noise.