Notch Notch Manual 0.9.23
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Vortex Affector

Vortex Affector

Applies a rotational velocity to a field.



Method #

This node modifies the movement vectors of a field to give a rotational velocity about an axis. Useful for creating tornado effects.

The outputs from this node are just its transforms, useful for having multiple nodes follow the same motions without controlling each of their transforms individually.


These properties control the 3D transforms of the node. Transforms will generally be inherited by child nodes, although they can be ignored through the Inherit Transform Channels attributes.

Position XMove along the local x-axis.
Position YMove along the local y-axis.
Position ZMove along the local z-axis.
Rotation HeadingRotate around the local y-axis.
Rotation PitchRotate around the local x-axis.
Rotation BankRotate around the local z-axis.
Scale XScale along the local x-axis.
Scale YScale along the local y-axis.
Scale ZScale along the local z-axis.

Toggle which transform channels should be inherited from the parent node. By default, all transforms will be inherited.

Position XToggle inheritance of the X Position from the parent.
Position YToggle inheritance of the Y Position from the parent.
Position ZToggle inheritance of the Z Position from the parent.
Rotation HeadingToggle inheritance of the Rotation Heading from the parent.
Rotation PitchToggle inheritance of the Rotation Pitch from the parent.
Rotation BankToggle inheritance of the Rotation Bank from the parent.
Scale XToggle inheritance of the X Scale from the parent.
Scale YToggle inheritance of the Y Scale from the parent.
Scale ZToggle inheritance of the Z Scale from the parent.
World Position OnlyInherit the world position from the parent only, rotation and scale will be ignored. Overrides above properties.
Inherit TimeToggle inheritance of time from the parent.

These properties control the core behaviours of the node.

Velocity AmountScale the generated affector velocities.
Spread AngleControls how much the spread there is from the field velocities generated.
Vortex Angle ScaleChange how quickly field moves around the vortex centre dependant on distance from it.
Outward Velocity Amount / BlendControl the speed at which the particles are pushed out from the vortex centre.
RadiusThe outer radius for which the affector is active.
RandomnessThe randomness of the new velocities added to the simulation.


NameDescriptionTypical Input
Vortex Position NodeChange the position of the point the field orbits around.Null
Mask NodeMasks the areas in which the affector won’t apply.Image Plane
Affected EmittersChoose which particle emitters can be affected by the affector.Primitive Emitter
Transform ModifiersApply the transforms of another node to this node.Null
Target NodeModifiy the rotations of the node to always direct the z axis towards the input.Null
Local Transform OverrideApply the transforms of another node to this node, relative to its parent.Null