> generators

Greeble

generators/greeble·v1.5.1

IN:1 OUT:1

SUMMARY

Greeble cuts every quad or triangle of the input again and again at random positions, then separates, insets and extrudes each final panel, producing the machine-like surface detail known as greebles. Every input attribute passes through to the panels, and Keep Source can keep the original surface under them to fill the gaps.

Iterations, Split Probability, Ratio Variance and Axis Randomness shape the cut pattern, while Separation, Inset and Height Min / Max with Height Bias shape the panels; Relative To Panel Size keeps the look consistent at any scale. With Do Falloff, a POPX falloff drives the cut depth, the height or both, for example to grow panels over a surface.

PARAMETERS

PAGEGreeble

Iterations	Iterations	Maximum number of cuts per face, giving up to 2 to the power of N panels.
Min Iterations	Miniter	Number of levels that always cut before Split Probability applies.
Split Probability	Splitprob	Sets the probability that a panel is cut again at each level past Min Iterations. 1 cuts to full depth.
Min Panel Size	Minsize	Panels whose shorter side is below this are not cut further. 0 means no limit.
Ratio Variance	Ratiovar	Sets how far a cut can sit from the middle. 0 gives even halves.
Axis Randomness	Axisrand	Sets the chance to cut along the shorter side. Higher values give long strips.
Quadrangulate Triangles	Quadrangulate	Split each input triangle into 3 quads first, for rectilinear panels. When off, the panels are triangular.
Seed	Seed	Numerical value that initializes the randomization.
Relative To Panel Size	Relative	Scale Separation, Inset and Height by the panel size. When off, they are in scene units.
Separation	Separation	Sets the gap around every panel.
Inset	Inset	Sets the inset of the top of each panel, which bevels the side walls.
Inset Variance	Insetvar	Sets the random per-panel variation of the Inset, plus or minus.
Keep Source	Keepsource	Keep the input surface under the panels, filling the gaps.
Height Min	Heightmin	Sets the lowest panel height. Negative values recess the panels.
Height Max	Heightmax	Sets the tallest panel height.
Height Bias	Heightbias	Controls the height distribution. 1 is even, above 1 gives mostly low panels, below 1 mostly tall ones.
Extrude Probability	Extrudeprob	Sets the probability that a panel is extruded. The rest stay flat.
Do Falloff	Dofalloff	Weight the effect on each point by the Falloff Attribute.
Falloff Attribute	Falloffattr	The point attribute, 0 to 1, that weights the effect.
[+]Falloff Mode	Falloffmode	Determines what the falloff scales: Depth (cut levels), Height, or Depth and Height.
[+]Normals Action	Nml	Choose what to do regarding normals.
[+]Attribute Class	Attrclass	Sets the attribute class of the normals: point, vertex or primitive.
[+]Normals Weighting	Nmlweighting	For point normals, choose how to weight the normals of the primitives the point is a part of.
[+]Compute Normals Technique	Compnmltech	Specify which technique to use to calculate point normals.
Max Number of Primitives per Point	Maxprimsperpoint	Used to allocate temporary storage, it should be set to the maximum number of primitives a point can be a part of in the input geometry.
Angle	Angle	For vertex normals, the threshold angle between faces above which the shared edge vertices don't share normals.

PAGECommon

Bypass	Bypass	Pass through the first input to the output unchanged.
Free Extra GPU Memory	Freeextragpumem	Free memory that has accumulated when output memory has grown and shrunk.

INPUTS

Input 0 POP - Geometry

OUTPUTS

Output 0 POP - Geometry