Notch Notch Manual 0.9.23
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Noise Shading

Noise Shading

Shades particles using fractal noise.

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Method #

This node shades particles using values generated by a fractal noise function, similar to the Fractal Noise Generator node but in 3D. The noise function may be sampled by the position of the particle in 3D, or the life of the particle. Useful for adding flickering effects to particles.

Parameters

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.

ParameterDetails
Position XPosition x in local space
Position YPosition y in local space
Position ZPosition z in local space
Rotation HeadingRotation around y axis in local space
Rotation PitchRotation around x axis in local space
Rotation BankRotation around z axis in local space
Scale XScale along the x axis in local space
Scale YScale along the y axis in local space
Scale ZScale along the z axis in local space

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

ParameterDetails
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.

ParameterDetails
Num OctavesHow many time the noise generation is iterated.
Noise ScaleScale the size of the generated fractal noise.
Animaton RateThe speed at which the fractal noise is animated.
LacunarityHow large the gaps between larger areas of noise are.
GainThe overall smoothness of the generated fractal noise.
Intensity ScaleScales the intensity of the resulting noise values.
Input ChannelChoose how the noise affects the particles.
  • Position : 3D noise is generated and applied to particles based on their position in the scene.
  • Life : Noise is generated based on the particles life.
  • Life With Random Offset : Noise is generated based on the particle life, but is offset based on the particles position.
RadiusOuter radius for which the particles will no longer be coloured.
Inner RadiusInner radius for which the particles will be coloured at their max.
Falloff PowerHow quickly the gradient changes from the inner radius to the outer radius.
ColourChange the colour of the particles as they spawn.
Blend ModeChoose how the particle colours blend to the source colours
Blend AmountControl how much the new shading affects the particles.

Inputs

NameDescriptionTypical Input
Position NodeERROR: Variable not found: {input-node-particles-position-node-description}ERROR: Variable not found: {input-node-particles-position-node-typical-input}
Affected EmittersChoose which particle emitters can be affected by the affector.Primitive Emitter
Transform ModifierApply 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