Open-source credits

MacCrown is built with the open-source software below. The full licence texts are in the third-party notices, the same file shown in the app's About window.

ComponentLicenceSource
OpenCascade Technology (OCCT)GNU Lesser General Public License 2.1, with the Open CASCADE exceptionhttps://github.com/Open-Cascade-SAS/OCCT
ManifoldApache License 2.0https://github.com/elalish/manifold
Clipper2Boost Software License 1.0https://github.com/AngusJohnson/Clipper2
oneTBBApache License 2.0https://github.com/uxlfoundation/oneTBB
libiglMozilla Public License 2.0https://github.com/libigl/libigl
EigenMozilla Public License 2.0 (some files BSD, MINPACK or Apache 2.0)https://gitlab.com/libeigen/eigen
Open Asset Import Library (Assimp)BSD 3-Clause Licensehttps://github.com/assimp/assimp
OpenDDL-Parser (in Assimp)MIT Licensehttps://github.com/kimkulling/openddl-parser
poly2tri (in Assimp)BSD 3-Clause Licensehttps://github.com/jhasse/poly2tri
Clipper 6 (in Assimp)Boost Software License 1.0https://www.angusj.com/clipper2/
minizip / unzip (in Assimp)zlib Licensehttps://github.com/zlib-ng/minizip-ng
pugixml (in Assimp)MIT Licensehttps://pugixml.org
UTF8-CPP (in Assimp)Boost Software License 1.0https://github.com/nemtrif/utfcpp
DCMTKBSD-style (OFFIS), with the sub-licences in its COPYRIGHT filehttps://github.com/DCMTK/dcmtk

Relinking OCCT (GNU LGPL 2.1, section 6)

MacCrown links OpenCascade Technology (OCCT) statically and does not modify it. Under the GNU LGPL 2.1 you may modify OCCT and relink MacCrown with your modified version. For three years after we distribute a version of MacCrown, we will provide on request the object files and link instructions needed to relink that version with a modified OCCT, together with the OCCT source code it was built from, for no more than our cost of physically performing the distribution. Write to support@maccrown.org and include the MacCrown version and build number shown in About.

Source code of the MPL 2.0 components

libigl and Eigen are used unmodified under the Mozilla Public License 2.0. Their source code is available at the addresses listed in the summary.