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Material

eulumdat_goniosim::material

Enum Material 

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pub enum Material {
    Absorber,
    DiffuseReflector {
        reflectance: f64,
    },
    SpecularReflector {
        reflectance: f64,
    },
    MixedReflector {
        reflectance: f64,
        specular_fraction: f64,
    },
    ClearTransmitter {
        ior: f64,
        transmittance: f64,
        min_reflectance: f64,
    },
    DiffuseTransmitter {
        ior: f64,
        scattering_coeff: f64,
        absorption_coeff: f64,
        asymmetry: f64,
        thickness: f64,
        min_reflectance: f64,
    },
}
Expand description

Internal material representation with physics coefficients. Users don’t construct these directly — they are derived from MaterialParams.

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Absorber

Perfect absorber — photon dies.

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DiffuseReflector

Lambertian (diffuse) reflector.

Fields

§reflectance: f64

Reflectance rho, 0..1.

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SpecularReflector

Specular (mirror) reflector.

Fields

§reflectance: f64

Reflectance rho, 0..1.

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MixedReflector

Mixed reflector (partly specular, partly diffuse).

Fields

§reflectance: f64

Total reflectance rho, 0..1.

§specular_fraction: f64

Fraction of reflected light that is specular (0 = fully diffuse, 1 = fully specular).

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ClearTransmitter

Clear dielectric (glass, clear PMMA).

Fields

§ior: f64

Index of refraction.

§transmittance: f64

Transmittance at normal incidence for the given thickness.

§min_reflectance: f64

Minimum reflectance at normal incidence (user-specified, 0..1). Used as max(fresnel, this) to allow coated surfaces.

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DiffuseTransmitter

Diffuse transmitter (opal/satin PMMA) with volume scattering.

Fields

§ior: f64

Index of refraction.

§scattering_coeff: f64

Scattering coefficient mu_s [1/m].

§absorption_coeff: f64

Absorption coefficient mu_a [1/m].

§asymmetry: f64

Henyey-Greenstein asymmetry parameter g (-1..1).

§thickness: f64

Slab thickness [m].

§min_reflectance: f64

Minimum reflectance at normal incidence (user-specified, 0..1).

Implementations§

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impl Material

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pub fn interact<R: Rng>( &self, photon: &Photon, hit: &HitRecord, rng: &mut R, ) -> Interaction

Compute the interaction of a photon with this material at a hit point.

Trait Implementations§

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impl Clone for Material

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fn clone(&self) -> Material

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for Material

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<SS, SP> SupersetOf<SS> for SP
where SS: SubsetOf<SP>,

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fn to_subset(&self) -> Option<SS>

The inverse inclusion map: attempts to construct self from the equivalent element of its superset. Read more
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fn is_in_subset(&self) -> bool

Checks if self is actually part of its subset T (and can be converted to it).
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fn to_subset_unchecked(&self) -> SS

Use with care! Same as self.to_subset but without any property checks. Always succeeds.
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fn from_subset(element: &SS) -> SP

The inclusion map: converts self to the equivalent element of its superset.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V