impl Camera{
    fn render(&self, world: &impl Hittable) {
        let cap = self.image_width * self.image_height * 3;
        let mut image_buf = vec![0; cap];

        image_buf
            .par_chunks_mut(self.image_width * 3)
            .enumerate()
            .for_each(|(row, line)| {
                for (col, px) in line.as_chunks_mut::<3>().0.iter_mut().enumerate() {
                    let mut color = Color::default();
                    for _ in 0..self.pixel_sample_count {
                        color += self.get_ray(row, col).color(self.max_depth, world);
                    }
                    write_color_px(px, self.pixel_samples_scale * color);
                }
            });

        write_image_data_to_disk(&image_buf, self.image_width, self.image_height);
    }
}