This is the reference implementation of the paper
MatMorpher: A Morphing Operator for SVBRDFs
Alban Gauthier, Jean-Marc Thiery and Tamy Boubekeur
EGSR 2021 (Symposium Track)
This is only the Windows executable, I can provide the Linux one on demand.
It is provided with the default morphing example (fish and lumber).
See README.md in the github repo for detailed instructions on how to use the executable.