This repository holds the six textures used in experiments. The input directory contains the patches from the original textures; the optimized directory holds textures optimized for particular roughness; and the linear directory holds textures iteratively scaled to a target roughness using linear z and xy scaling.

Heightmaps are 128x128 pixel images corresponding to 10x10 mm^2, applied to a mesh of the same resolution, and are scaled linearly to 3mm (i.e., a black pixel is at 0mm, and a white pixel is at 3mm, with linear interpolation between). 
