pub struct Billow {
pub octaves: usize,
pub frequency: f64,
pub lacunarity: f64,
pub persistence: f64,
/* private fields */
}
Expand description
Noise function that outputs “billowy” noise.
This noise function produces “billowy” noise suitable for clouds and rocks.
This noise function is nearly identical to fBm noise, except this noise function modifies each octave with an absolute-value function. See the documentation for fBm for more information.
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.
Implementations§
source§impl Billow
impl Billow
pub const DEFAULT_SEED: u32 = 0u32
pub const DEFAULT_OCTAVE_COUNT: usize = 6usize
pub const DEFAULT_FREQUENCY: f64 = 1f64
pub const DEFAULT_LACUNARITY: f64 = 2.0943951023931953f64
pub const DEFAULT_PERSISTENCE: f64 = 0.5f64
pub const MAX_OCTAVES: usize = 32usize
pub fn new() -> Billow
Trait Implementations§
source§impl MultiFractal for Billow
impl MultiFractal for Billow
fn set_octaves(self, octaves: usize) -> Billow
fn set_frequency(self, frequency: f64) -> Billow
fn set_lacunarity(self, lacunarity: f64) -> Billow
fn set_persistence(self, persistence: f64) -> Billow
Auto Trait Implementations§
impl RefUnwindSafe for Billow
impl Send for Billow
impl Sync for Billow
impl Unpin for Billow
impl UnwindSafe for Billow
Blanket Implementations§
source§impl<S, D, Swp, Dwp, T> AdaptInto<D, Swp, Dwp, T> for S
impl<S, D, Swp, Dwp, T> AdaptInto<D, Swp, Dwp, T> for S
source§fn adapt_into_using<M>(self, method: M) -> Dwhere
M: TransformMatrix<Swp, Dwp, T>,
fn adapt_into_using<M>(self, method: M) -> Dwhere
M: TransformMatrix<Swp, Dwp, T>,
source§fn adapt_into(self) -> D
fn adapt_into(self) -> D
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
source§impl<T, U> ConvertInto<U> for Twhere
U: ConvertFrom<T>,
impl<T, U> ConvertInto<U> for Twhere
U: ConvertFrom<T>,
source§fn convert_into(self) -> U
fn convert_into(self) -> U
source§fn convert_unclamped_into(self) -> U
fn convert_unclamped_into(self) -> U
source§fn try_convert_into(self) -> Result<U, OutOfBounds<U>>
fn try_convert_into(self) -> Result<U, OutOfBounds<U>>
OutOfBounds
error is returned which contains the unclamped color. Read more