[−][src]Struct nannou::noise::BasicMulti

pub struct BasicMulti {
    pub octaves: usize,
    pub frequency: f64,
    pub lacunarity: f64,
    pub persistence: f64,
    // some fields omitted
}

Noise function that outputs heterogenous Multifractal noise.

This is a multifractal method, meaning that it has a fractal dimension that varies with location.

The result of this multifractal method is that in areas near zero, higher frequencies will be heavily damped, resulting in the terrain remaining smooth. As the value moves further away from zero, higher frequencies will not be as damped and thus will grow more jagged as iteration progresses.

Fields

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: f64

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

lacunarity: f64

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: f64

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 BasicMulti[src]

pub const DEFAULT_SEED: u32[src]

pub const DEFAULT_OCTAVES: usize[src]

pub const DEFAULT_FREQUENCY: f64[src]

pub const DEFAULT_LACUNARITY: f64[src]

pub const DEFAULT_PERSISTENCE: f64[src]

pub const MAX_OCTAVES: usize[src]

pub fn new() -> BasicMulti[src]

Trait Implementations

impl MultiFractal for BasicMulti[src]

impl NoiseFn<[f64; 3]> for BasicMulti[src]

3-dimensional BasicMulti noise

impl NoiseFn<[f64; 2]> for BasicMulti[src]

2-dimensional BasicMulti noise

impl NoiseFn<[f64; 4]> for BasicMulti[src]

4-dimensional BasicMulti noise

impl Default for BasicMulti[src]

impl Debug for BasicMulti[src]

impl Seedable for BasicMulti[src]

impl Clone for BasicMulti[src]

fn clone_from(&mut self, source: &Self)1.0.0[src]

Performs copy-assignment from source. Read more

Auto Trait Implementations

impl Send for BasicMulti

impl Sync for BasicMulti

Blanket Implementations

impl<T> From<T> for T[src]

impl<T> ToOwned for T where
    T: Clone, [src]

type Owned = T

The resulting type after obtaining ownership.

impl<T, U> Into<U> for T where
    U: From<T>, [src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

impl<T> Any for T where
    T: 'static + ?Sized, [src]

impl<T> Content for T[src]

impl<T> SafeBorrow<T> for T[src]

impl<T> Erased for T

impl<S> FromSample<S> for S[src]

impl<T, U> ToSample<U> for T where
    U: FromSample<T>, [src]

impl<S, T> Duplex<S> for T where
    T: FromSample<S> + ToSample<S>, [src]

impl<T> SetParameter for T

fn set<T>(&mut self, value: T) -> <T as Parameter<Self>>::Result where
    T: Parameter<Self>, 

Sets value as a parameter of self.

impl<T> SetParameter for T

fn set<T>(&mut self, value: T) -> <T as Parameter<Self>>::Result where
    T: Parameter<Self>, 

Sets value as a parameter of self.