field3d: field3d (library for storing voxel data) field3d: field3d: Field3D is an open source library for storing voxel data. It field3d: provides C++ classes that handle in-memory storage and a file format field3d: based on HDF5 that allows the C++ objects to be written to and read field3d: from disk. field3d: field3d: field3d: field3d: field3d: