Version 1.7.3.20230509 is available upstream. Please consider updating! It seems that version 1.7.3.20230509 is available upstream, while the latest version in the Gentoo tree is 1.7.3_p20230509. You think this warning is false? Read more about it here.
Field3D is an open source library for storing voxel data.
It provides C++ classes that handle in-memory storage and
a file format based on HDF5 that allows the C++ objects
to be written to and read from disk.