Indeed ! How fascinating. The clamped previews actually have a nice composition too.

I implemented the R2 Sequence from my previous post for distributing the camera sampling points in my render engine. The Sequence goes from covering statistic 1 samplepoint per pixel to 64 sample sets. The lighting still uses white noise though

R2 Sequence. Tileable and fills the space very evenly. By stepping in steps of N numbers with a stepsize of S the space can be filled in with a number of (N / S) Sets where each set distributes in the space inbetween the existings sets.