It has been implemented. Also, the hashmap, which got me twice as many samples per second. The multithreading is broken with a race condition.
Unfortunitely, I can't seem to get the same results as the paper, with the glossy reflections converging even quicker than the diffuse surfaces. It seems as though my glossy reflections are converging really slow (but actually converging)
I do have a few new ideas which seem much simpler to implement than my previous voronoi cell based method (which was too complicated for me to bother spending the time not studying for school implementing) and thus fairly publishable.
