Function pbrt::core::integrator::estimate_direct

pub fn estimate_direct(
    it: &SurfaceInteraction, 
    u_scattering: &Point2f, 
    light: Arc<dyn Light + Send + Sync>, 
    u_light: &Point2f, 
    scene: &Scene, 
    _sampler: &mut Box<dyn Sampler + Send + Sync>, 
    handle_media: bool, 
    specular: bool
) -> Spectrum

Computes a direct lighting estimate for a single light source sample.