Added COPYRIGHT.txt for the mesh utils module.

modules/mesh_utils/COPYRIGHT.txt

@@ -0,0 +1,55 @@
+# Exhaustive licensing information for files in the Godot Engine repository
+# =========================================================================
+#
+# This file aims at documenting the copyright and license for every source
+# file in the Godot Engine repository, and especially outline the files
+# whose license differs from the MIT/Expat license used by Godot Engine.
+#
+# It is written as a machine-readable format following the debian/copyright
+# specification. Globbing patterns (e.g. "Files: *") mean that they affect
+# all corresponding files (also recursively in subfolders), apart from those
+# with a more explicit copyright statement.
+#
+# Licenses are given with their debian/copyright short name (or SPDX identifier
+# if no standard short name exists) and are all included in plain text at the
+# end of this file (in alphabetical order).
+#
+# Disclaimer for thirdparty libraries:
+# ------------------------------------
+#
+# Licensing details for thirdparty libraries in the 'thirdparty/' directory
+# are given in summarized form, i.e. with only the "main" license described
+# in the library's license statement. Different licenses of single files or
+# code snippets in thirdparty libraries are not documented here.
+# For example:
+#   Files: ./thirdparty/zlib/
+#   Copyright: 1995-2017, Jean-loup Gailly and Mark Adler
+#   License: Zlib
+# The exact copyright for each file in that library *may* differ, and some
+# files or code snippets might be distributed under other compatible licenses
+# (e.g. a public domain dedication), but as far as Godot Engine is concerned
+# the library is considered as a whole under the Zlib license.
+#
+# Nota: When linking dynamically against thirdparty libraries instead of
+# building them into the Godot binary, you may remove the corresponding
+# license details from this file.
+
+-----------------------------------------------------------------------
+
+Files: modules/mesh_utils/*
+Comment: MeshUtils Module
+Copyright: 2029-2023 Péter Magyar.
+License: Expat
+
+Files: modules/mesh_utils/xatlas/*
+Comment: Modified Xatlas Library (MeshUtils Module)
+Copyright: 2018-2020 Jonathan Young.
+ 2021 Péter Magyar.
+License: Expat
+
+Files: modules/mesh_utils/simplify.h
+Comment: Fast Quadric Mesh Simplification Algorithm (MeshUtils Module)
+Copyright: 2014 Sven Forstmann.
+ 2017-2018 Mattias Edlund.
+ 2020 Péter Magyar.
+License: Expat

modules/mesh_utils/config.py

@@ -17,3 +17,5 @@ def get_doc_classes():
 def get_doc_path():
     return "doc_classes"
 
+def get_license_file():
+  return "COPYRIGHT.txt"

modules/mesh_utils/simplify.h

@@ -10,10 +10,15 @@
 // License : MIT
 // http://opensource.org/licenses/MIT
 //
-//https://github.com/sp4cerat/Fast-Quadric-Mesh-Simplification
+// https://github.com/sp4cerat/Fast-Quadric-Mesh-Simplification
 //
 // 5/2016: Chris Rorden created minimal version for OSX/Linux/Windows compile
 
+// Contains some improvements from https://github.com/Whinarn/MeshDecimator
+// Copyright (c) 2017-2018 Mattias Edlund
+
+// (C) by Péter Magyar in 2020
+
 #include "core/variant/array.h"
 #include "core/string/ustring.h"
 

modules/mesh_utils/xatlas/xatlas.h

@@ -4,6 +4,7 @@
 MIT License
 
 Copyright (c) 2018-2020 Jonathan Young
+Copyright (c) 2021 Péter Magyar
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal