Function pbrt::core::lowdiscrepancy::sobol_2d

pub fn sobol_2d(
    n_samples_per_pixel_sample: i32, 
    n_pixel_samples: i32, 
    samples: &mut [Point2f], 
    rng: &mut Rng
)

Similar to van_der_corput(), but uses two generator matrices to generate the first two dimensions of Sobol' points.