This site contains, the supplementary materials for the manuscript entitled: Sufficient conditions for topology-preserving parallel reductions on the face-centered cubic grid Authors: Gábor Karai, Péter Kardos, Kálmán Palágyi Last modified: October 30th, 2023 * src.zip The source code - written in C++14 - of the generated parallel reductions from our point-based conditions is placed here. This file has 3 subdirectories for each picture types (18,12), (12,18), and (12,12). * images.zip It stores the test images in Analyze 7.5 format. in case of any question, contact Gábor Karai in email: karai@inf.u-szeged.hu