Spotify

Spotify

Features ›› Procedural Nodes ›› Noise Nodes ›› MultiFractal ››
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Spotify by Jens Kafitz








Spotify is a versatile MultiFractal for applications in terrain and weathering.


A simple stain mask created using one spotify node and one axis mask.

Samples



Videos


A full Spotify Feature presentation exists on vimeo:




Options


Color


The two colors that make up the final look of the procedural

Size




Size controls


Spotify currently does not have a a global size control to increase or decrease the size of features

without changing the look



Spotify is made up out of 2 different noises. DimensionA controls the frequency of the main noise


Spotify is made up out of 2 different noises. DimensionB controls the frequency of the secondary noise


Lacunarity will offset two noises against each other however in the case of Spotify it also affects the frequency.

This results in drastically different results depending if you have a low lacunarity (below 1.0) or a high lacunarity (above 1.0)


Increasing lacunarity from 0.0 to 2.0.

A look change happens at 1.0.


A random start value for your fractal.

Changing the seed changes the overall look of your fractal while the general feature look stays the same,  allowing for quick variation with a general look theme.

Modifiers


Fill Spots represents the exponent in an exponentiation with itself, widening (high values) or sharpening (low values) the created 'ridges' of the noise:


Increasing FillSpots from 0.01 to 1.0


The amount to multiply the noise's amplitude by for each octave

The amplitude is hardcoded for this noise to start at 1.0 for the first octave,

then gets multiplied by the Gain 1x time for each octave incrementing the value of the amplitude


Increasing Spotify Gain


In practical terms think of the Organicness as the size of the noises's spots.

While Gain will multiply for each octave representing the 'weight' of each octave for the final result,

Organicness represents a constant value that octave's result gets subtracted from.


Threshold


Defines the Value at which point incoming colors/values go to black (incoming values to the left of the set slider value)

or white (incoming values to the right of the set slider value).


Used to visually soften the thresholding, it defines the Upper+Lower Bound of the Threshold

For example with a Threshold Value set to 0.5 and a Edge Value of 0.1, incoming values lower than 0.4

will be black and incoming values higher than 0.6 will be white. Between 0.4 and 0.6 will be a soft gradient.


Extra Attributes


The following are multipliers against the corresponding sliders above to easily gain larger slider ranges.


Values outside the slider range


As of Mari 2.6v3 you can enter numbers outside its range on any slider via the numerical field.


Multiplier against the Dimension A Slider from the 'Size' Group.


Multiplier against the Dimension B Slider from the 'Size' Group.


Multiplier against the Fill Spots Slider from the 'Modifiers' Group.


Multiplier against the Gain Slider from the 'Modifiers' Group.


Inverts the Noise result. Inversion is done before Color A and Color B are applied.


It is possible for the Spotify Noise to output values above 1.0 - even with Values below 1.0 in Color A and Color B.

Clamping will clip any values to a range of 0.0 - 1.0 before ColorA, Color B are applied.


Space


By default this procedural is generated in 3D World Space. This results in a seamless noise across UV seams.

By turning on UV Space the procedural is generated based on your UVs, resulting in seams between UV tiles/UDIM & uv shells.


Utilizing Transform Controls such as Scale (see below) you can apply a non-uniform transform to the procedural

to make use of specific UV layouts

Transform Scale


Will apply a scale along X,Y or Z to your noise. This is useful for creating patterns like woodgrain, drips etc.

When UV Space is turned on Scale Z is ignored.

Transform Rotate


Will apply a rotation in X,Y or Z to your noise. When UV Space is turned on Rotate X & Rotate Y are ignored

and rotation is done around the center of each UV Tile/UDIM using Rotate Z.

Transform Translate


Will apply an offset in X,Y or Z to your noise. When UV Space is turned on Translate Z is ignored.



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