Notch Reference Manual

Scale Affector

Method

This node changes the scale of particles as they enter its falloff region.

Transform

Name Description
Position X Move its position along the x-axis in local space.
Position Y Move its position along the y-axis in local space.
Position Z Move its position along the z-axis in local space.
Rotation Heading Rotate the object about the y-axis.
Rotation Pitch Rotate the object about the x-axis.
Rotation Bank Rotate the object about the z-axis.
Scale X Scale along the x-axis.
Scale Y Scale along the y-axis.
Scale Z Scale along the z-axis.

Inherit Transform Channels

Toggle which transform channels should be inherited. By default, all are on.

Attributes

Name Description
Scale Amount How much to scale all particles by.
Radius Alter the outer radius at which the affector is no longer effective.
Inner Radius Alter the inner radius up to which the affector is fully effective.
Randomness How much randomness is added in the particles movement.
Blend Mode How the changes to the Scale Amount will affect the particles.
  • Blend, Multiplies the Scale Amount and the current particle scale.
  • Add, The Scale Amount will be added to the current value.
  • Subtract, The Scale Amount will be subtracted from the current value.
  • Max, The larger value between the Scale Amount and the current particle size is chosen.
  • Min, The smaller value between the Scale Amount and the current particle size is chosen.
Falloff Shape Select which shape to calculate the falloff from.
Life Effect Coeffs How much the particles are affected by the affector at different stages of the particles life cycle. Values 1 and 2 are control points used to control a bezier curve between values 0 and 3.

Inputs

Name Description Typical Node Input
Mask Node Mask out areas that particles cannot spawn. Image Plane
Affected Emitters Choose which emitters can be affected by the affector. Primitive Emitter
Procedural Falloff Use the SDF values from a procedural system to dictate the falloff. Procedural Root
Transform Modifier Links all transform properties to the input node. Null
Target Node Always faces the x-axis towards the inputs anchor point. Null
Local Transform Override Override the transformation values of the node, relative to its parent. Null

Outputs

All nodes connected to this node are treated as if flowing to the parent node, and inherits any transformation changes along the chain.