Halton Sampler
To implement the Halton Sampler we followed this tutorial in the PBR-Book. The main problem we faced was that we didn't know how to seed the sampler. In this respect we were helped by a nice (and dare we say handsome) young man working at the CG-chair. Below you can see the same scene first rendered with the given Independent Sampler and second rendered using our Halton Sampler both at 64 samples per pixel. You can see that that the noise is greatly reduced in the second render.
Code:
src/samplers/halton.cpp