Struct SkyModel 

pub struct SkyModel {
    pub params: AtmosphereParams,
}

Physical sky colour model using single-scattering path integrals.

Fields

params: AtmosphereParams

Implementations

impl SkyModel

pub fn new(params: AtmosphereParams) -> Self

pub fn sky_color(&self, ray_dir: Vec3, n_steps: usize) -> Vec3

Compute sky colour for a view ray ray_dir (unit vector).

Uses n_steps integration steps along the view ray, and n_light_steps for each secondary ray toward the sun.

pub fn sun_transmittance(&self, ray_dir: Vec3) -> Vec3

Compute transmittance along a ray from origin toward the sun.

pub fn sky_irradiance(&self, normal: Vec3) -> Vec3

Approximate sky irradiance on a surface with the given normal.

Integrates the sky radiance over the upper hemisphere and weights by NdotL. Uses a coarse stratified sample.