Enum NoiseSource

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pub enum NoiseSource {
    Perlin {
        frequency: f32,
        amplitude: f32,
        seed: u32,
    },
    Fbm {
        frequency: f32,
        amplitude: f32,
        octaves: u32,
        lacunarity: f32,
        persistence: f32,
        seed: u32,
    },
    Ridged {
        frequency: f32,
        amplitude: f32,
        octaves: u32,
        lacunarity: f32,
        gain: f32,
        offset: f32,
        seed: u32,
    },
    DomainWarped {
        base: Box<NoiseSource>,
        warp_frequency: f32,
        warp_amplitude: f32,
        warp_seed: u32,
    },
    Flat {
        height: f32,
    },
    Sinusoidal {
        frequency_x: f32,
        frequency_z: f32,
        amplitude: f32,
    },
    Composite {
        sources: Vec<NoiseSource>,
    },
}

Expand description

Noise generation method for height fields.

Variants§

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Perlin

Simple Perlin noise at a single frequency.

Fields

§frequency: f32

§amplitude: f32

§seed: u32

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Fbm

Fractional Brownian Motion — multiple octaves of Perlin noise.

Fields

§frequency: f32

§amplitude: f32

§octaves: u32

§lacunarity: f32

§persistence: f32

§seed: u32

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Ridged

Ridged multifractal noise — sharp ridges.

Fields

§frequency: f32

§amplitude: f32

§octaves: u32

§lacunarity: f32

§gain: f32

§offset: f32

§seed: u32

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DomainWarped

Domain-warped noise — feeds noise through itself for organic distortion.

Fields

§base: Box<NoiseSource>

§warp_frequency: f32

§warp_amplitude: f32

§warp_seed: u32

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Flat

Flat surface (height = constant).

Fields

§height: f32

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Sinusoidal

Sinusoidal terrain (for testing).

Fields

§frequency_x: f32

§frequency_z: f32

§amplitude: f32

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Composite

Composite: sum of multiple noise sources.

Fields

§sources: Vec<NoiseSource>

Implementations§

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impl NoiseSource

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pub fn sample(&self, x: f32, z: f32) -> f32

Evaluate the noise source at world-space position (x, z).

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pub fn gradient(&self, x: f32, z: f32) -> Vec2

Compute the gradient of the noise at (x, z) using central differences.

Trait Implementations§

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impl Clone for NoiseSource

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fn clone(&self) -> NoiseSource

Returns a duplicate of the value. Read more

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

Performs copy-assignment from source. Read more

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impl Debug for NoiseSource

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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impl Default for NoiseSource

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl UnwindSafe for NoiseSource

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<T> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.

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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.

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fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.

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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.

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impl<T> DowncastSync for T
where T: Any + Send + Sync,

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fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.

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