Function pbrt::core::lowdiscrepancy::gray_code_sample_2d

pub fn gray_code_sample_2d(
    c0: &[u32], 
    c1: &[u32], 
    n: u32, 
    scramble: &Point2i, 
    p: &mut [Point2f]
)

Takes two generator matrices c0 and c1, a number of 2D samples to generate n, and stores the corresponding samples in memory at the location pointed to by p.