Struct noise::Billow

pub struct Billow<T> {
    pub seed: usize,
    pub octaves: usize,
    pub frequency: T,
    pub lacunarity: T,
    pub persistence: T,
    // some fields omitted
}

Noise module that outputs "billowy" noise.

This noise module produces "billowy" noise suitable for clouds and rocks.

This noise module is nearly identical to fBm noise, except this noise module modifes each octave with an absolute-value function. See the documentation for fBm for more information.

Fields

seed: usize

Seed.

octaves: usize

Total number of frequency octaves to generate the noise with.

The number of octaves control the amount of detail in the noise function. Adding more octaves increases the detail, with the drawback of increasing the calculation time.

frequency: T

The number of cycles per unit length that the noise function outputs.

lacunarity: T

A multiplier that determines how quickly the frequency increases for each successive octave in the noise function.

The frequency of each successive octave is equal to the product of the previous octave's frequency and the lacunarity value.

A lacunarity of 2.0 results in the frequency doubling every octave. For almost all cases, 2.0 is a good value to use.

persistence: T

A multiplier that determines how quickly the amplitudes diminish for each successive octave in the noise function.

The amplitude of each successive octave is equal to the product of the previous octave's amplitude and the persistence value. Increasing the persistence produces "rougher" noise.

Methods

impl<T: Float> Billow<T>

fn new() -> Billow<T>

Trait Implementations

impl<T: Clone> Clone for Billow<T>

fn clone(&self) -> Billow<T>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug> Debug for Billow<T>

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<T> MultiFractal<T> for Billow<T>

fn set_octaves(self, octaves: usize) -> Billow<T>

fn set_frequency(self, frequency: T) -> Billow<T>

fn set_lacunarity(self, lacunarity: T) -> Billow<T>

fn set_persistence(self, persistence: T) -> Billow<T>

impl<T> Seedable for Billow<T>

fn set_seed(self, seed: usize) -> Billow<T>

impl<T: Float> NoiseModule<Point2<T>> for Billow<T>

2-dimensional Billow noise

type Output = T

fn get(&self, point: Point2<T>) -> T

impl<T: Float> NoiseModule<Point3<T>> for Billow<T>

3-dimensional Billow noise

type Output = T

fn get(&self, point: Point3<T>) -> T

impl<T: Float> NoiseModule<Point4<T>> for Billow<T>

4-dimensional Billow noise

type Output = T

fn get(&self, point: Point4<T>) -> T