This supplement provides some of the images 
used for figures 11 and 12 in .exr and .bmp
format.  File names indicate the render type
and number of samples per pixel.  The render
types are:

PT: Path tracing
MLT: Metropolis light transport
SS: Sample swarming
SSfilter: Sample swarming with max contribution filtering

Also included are RMSE studies in an excel document.