Primitive Affector

Updated: 4 Dec 2023

Use basic primitives to affect the field.

Method #

This node uses basic geometric shapes to affect the field, by attracting or repelling the ink with respect to the selected primitive surface.

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.

Parameters

Transform

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.

Parameter	Details
Position X	The objects position along the local x-axis.
Position Y	The objects position along the local y-axis.
Position Z	The objects position along the local z-axis.
Rotation Heading	The objects rotation around the local y-axis.
Rotation Pitch	The objects rotation around the local x-axis.
Rotation Bank	The objects rotation around the local z-axis.
Scale X	The objects scale along the local x-axis.
Scale Y	The objects scale along the local y-axis.
Scale Z	The objects scale along the local z-axis.

Parent Transform

Control the inheritance of the transforms from the parent.

Parameter	Details
Position	Toggle inheritance of the Position from the parent.
Rotation	Toggle inheritance of the Rotation from the parent.
Scale	Toggle inheritance of the Scale from the parent.
World Position Only	Inherit the world position from the parent only, rotation and scale will be ignored. Overrides above properties.
Inherit Time	Toggle inheritance of time from the parent.

Attributes

These properties control the core behaviours of the node.

Parameter	Details
Primitive Type	Choose which primitive shape is used for the affector. Sphere : Use a sphere to affect the field. Box : Use a box to affect the field. Cylinder : Use a cylinder to affect the field. Plane : Use a plane to affect the field. 2D Grid : The field is affected by the edges of a 2d wireframe grid. 3D Grid : The field is affected by the edges of a 3d wireframe grid. 2D Noise : Uses a 2D noise field to affect the field. Wireframe Sphere : The field is affected by the edges of a 3d wireframe sphere.
Velocity Mode	Toggle whether the velocity attracts to the primitive or repels away from a primitive. Repel : Push the field away from the primitive shape selected. Attract : Pull the field towards the primitive shape selected.
Use Colours	Allows the colour of the primitive to be blended into the field.
Radius	The outer radius for which the affector is active.
Randomness	The randomness of the new velocities added to the simulation.
Velocity Randomness	Adds a randomness to the velocity of the field.
Velocity Scale	Scale the generated affector velocities.
Weight	How much the affector affects the field system.
Colour Weight	The amount by which the colour of the primitive is blended into the field, if Use Colours is enabled.
Stickiness	Controls how much the particle sticks to the surface of the shape once it reaches it.
Affector Mode	The method by which the affector is applied to the field. Force : The results of the affector are added to the simulation as forces. Velocity Modifier : The results of the affector are added each frame after the results of the simulation, and not injected into the simulation itself.
Modulate By Velocity	The strength of the affector is modulated per cell by the magnitude of the velocity of the cell, so movement is stronger in faster-moving areas.
Modulate By Temperature	The strength of the affector is modulated per cell by the temperature of the cell, so movement is stronger in hotter areas.

Inputs

Name	Description	Typical Input
Transform Modifiers	Apply the transforms of another node to this node.	Null
Target Node	Modifiy the rotations of the node to always direct the z axis towards the input.	Null
Local Transform Override	Apply the transforms of another node to this node, relative to its parent.	Null