Struct tray_rust::bxdf::oren_nayar::OrenNayar

pub struct OrenNayar { /* fields omitted */ }

Oren-Nayar BRDF that implements the Oren-Nayar reflectance model

Methods

impl OrenNayar

pub fn new(c: &Colorf, roughness: f32) -> OrenNayar

Create a new Oren-Nayar BRDF with the desired color and roughness roughness should be the variance of the Gaussian describing the microfacet distribution

Trait Implementations

impl BxDF for OrenNayar

fn bxdf_type(&self) -> EnumSet<BxDFType>

Get the type of this BxDF

fn eval(&self, w_o: &Vector, w_i: &Vector) -> Colorf

Evaluate the BxDF for the pair of incident and outgoing light directions, w_i and w_o.

fn sample(&self, w_o: &Vector, samples: &(f32, f32)) -> (Colorf, Vector, f32)

Sample an incident light direction for an outgoing light direction w_o. samples will be used to randomly sample a direction for the outgoing light Returns the color of the material for the pair of directions, the incident light direction and pdf

fn matches(&self, flags: EnumSet<BxDFType>) -> bool

Check if this BxDF matches the type flags passed

fn pdf(&self, w_o: &Vector, w_i: &Vector) -> f32

Compute the pdf of sampling the pair of directions passed for this BxDF

impl Clone for OrenNayar

fn clone(&self) -> OrenNayar

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for OrenNayar

impl Debug for OrenNayar

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

Formats the value using the given formatter.