diff --git a/code/Geometry/GeometryUtils.cpp b/code/Geometry/GeometryUtils.cpp
index 9b29af1dd..ab735aa6e 100644
--- a/code/Geometry/GeometryUtils.cpp
+++ b/code/Geometry/GeometryUtils.cpp
@@ -1,3 +1,44 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
 #include "GeometryUtils.h"
 
 #include <assimp/vector3.h>
@@ -20,8 +61,6 @@ ai_real GeometryUtils::distance3D( const aiVector3D &vA, aiVector3D &vB ) {
     return d;
 }
 
-
-
 ai_real GeometryUtils::calculateAreaOfTriangle( const aiFace& face, aiMesh* mesh ) {
     ai_real area = 0;
 
diff --git a/code/Geometry/GeometryUtils.h b/code/Geometry/GeometryUtils.h
index 2eb96926d..ab49380de 100644
--- a/code/Geometry/GeometryUtils.h
+++ b/code/Geometry/GeometryUtils.h
@@ -1,12 +1,66 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
 #include <assimp/types.h>
 #include <assimp/mesh.h>
 
 namespace Assimp {
 
+// ---------------------------------------------------------------------------
+/// @brief This helper class supports some basic geometry algorithms.
+// ---------------------------------------------------------------------------
 class GeometryUtils {
 public:
     static ai_real heron( ai_real a, ai_real b, ai_real c );
+    
+    /// @brief Will compute the distance between 2 3D-vectors
+    /// @param vA  Vector a.
+    /// @param vB  Vector b.
+    /// @return The distance.
     static ai_real distance3D( const aiVector3D &vA, aiVector3D &vB );
+
+    /// @brief Will calculate the area of a triangle described by a aiFace.
+    /// @param face   The face
+    /// @param mesh   The mesh containing the face
+    /// @return The area.
     static ai_real calculateAreaOfTriangle( const aiFace& face, aiMesh* mesh );
 };
 
diff --git a/code/PostProcessing/SplitByBoneCountProcess.h b/code/PostProcessing/SplitByBoneCountProcess.h
index 98ca6a61e..625019e0c 100644
--- a/code/PostProcessing/SplitByBoneCountProcess.h
+++ b/code/PostProcessing/SplitByBoneCountProcess.h
@@ -4,7 +4,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2022, assimp team
 
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,