A shoe sole with density data obtained from 3D scans of feet.
The image is a 2D density specification, which can be loaded in Cura under Cross Infill Density Image.
These densities have been obtained by comparing the imprint of a foot in clay when force is applied and a 3D scan of a foot in resting state.
The 3D model has been designed to look nice and cover the area which will be compressed by the foot.