Notch Notch Manual 0.9.23
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Fractal Noise

Fractal Noise

Generates 3D fractal noise for a Procedural system.



Method #

This node generates 3D fractal noise for a procedural system, useful for cutting into an existing shape with the CSG modes or generating randomised areas of falloff for a Cloning Effector.

Nodes connected to this node will generally follow the parent child heirarchy. Other Procedural Generator nodes can be configured to combine with this shape using thier CSG modes, and displacement nodes will only apply to this shape.


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.

Num IterationsThe number of octaves of noise. a higher value will produce more detail.
Fractal ModeWhich fractal noise generation method to use.
  • 3D Fast Noise : A simple and fast noise generation.
  • 3D Noise : A more complex noise generation method, which looks nices but is a bit slower.
  • 4D Noise (Time-Evolving) : 3d noise, but with an added dimension so the noise can be animated.
Distance OffsetOffsets the distance field values, causing the generated distance field to expand of contract.
LacunarityHow large the gaps between the generated noise is.
GainThe smoothness of the generated noise.
Animation RateThe speed at which the noise is animated.
CSG ModeThese options change how a this node combines with the rest of the procedural system. to find out more, see csg operation.
  • Replace : Replaces the previous procedural system.
  • Union : Adds the new procedural to the old procedural system.
  • Intersection : Interesects the new procedural with the old procedural.
  • Subtract : Subtracts the new procedural from the previous procedural system.
  • Blend : Blends between both procedurals - driven by the csg blend weight.
  • Union Blend : A combination of union and blend - driven by the csg blend weight.
  • Smooth Union : The new procedural is added to the old, and smoothing is applied to the outcome. Driven by the CSG Blend Weight.
  • Smooth Subtract : The new procedural is subtracted from the old, and smoothing is applied to the outcome. Driven by the CSG Blend Weight.
  • Offset : Adds one procedural ontop of the other another.
  • Custom Code : Allows you to enter your own expression code.
CSG Blend WeightHow much the new procedural blends with the old procedurals, depending on the CSG Blend Mode.
Affect ColourAffect the colour of the generated procedural system. only functions with ‘Generate Colours’ enabled in some Procedural Render nodes.
Always Enabled (No Time Bars)When enabled, this node will run regardless of time bar enable/disable. Due to how Notch handles shader generation with procedurals, with this enabled the node runs more efficiently.
Material ColourModify the colour for the procedural material.
Custom CSG CodeType your Custom code here, using the HLSL language. Read more on Editable Code.


NameDescriptionTypical Input
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