Supplemental Material for "Improving the Dwivedi Sampling Scheme" This folder contains supplemental.pdf with more information on Singular Eigenfunction Expansions and the approximation for the diffusion length that we use in practice. Additionally, there are three subdirectories here: * exr_out_of_renderer Contains .exr files as they were stored by the renderer. The directory also contains .txt sidecar files containing some statistics on the rendering progress, such as dwivedi technique selection percentages, and samples per pixel. * exr_tonemapped Contains .exr files tonemapped for the paper, along with tonemapped versions of all crops. * png_tonemapped Contains .png files converted from the files in exr_tonemapped. These files were used in the paper.