Function pbrt::core::integrator::uniform_sample_all_lights

pub fn uniform_sample_all_lights(
    it: &SurfaceInteraction, 
    scene: &Scene, 
    sampler: &mut Box<dyn Sampler + Send + Sync>, 
    n_light_samples: &Vec<i32>, 
    handle_media: bool
) -> Spectrum

Most basic direct lighting strategy.