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diff --git a/hw6/src/scale3d.cpp b/hw6/src/scale3d.cpp
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+/******************************************************************/
+/* This file is part of the homework assignments for CSCI-427/527 */
+/* at The College of William & Mary and authored by Pieter Peers. */
+/* No part of this file, whether altered or in original form, can */
+/* be distributed or used outside the context of CSCI-427/527     */
+/* without consent of either the College of William & Mary or     */
+/* Pieter Peers.                                                  */
+/******************************************************************/
+#include "scale3d.h"
+
+//////////////////
+// Constructors //
+//////////////////
+scale3d::scale3d(void) : transformation3d()
+{
+  // Do Nothing
+}
+
+
+scale3d::scale3d(float uniformScale) : transformation3d()
+{
+  _transformation.setDiagonal(uniformScale);
+  _inverseTransformation.setDiagonal(1.0f / uniformScale);
+}
+
+
+scale3d::scale3d(float scaleX, float scaleY, float scaleZ) : transformation3d()
+{
+  _transformation(0,0) = scaleX;
+  _transformation(1,1) = scaleY;
+  _transformation(2,2) = scaleZ;
+
+  _inverseTransformation(0,0) = 1.0f / scaleX;
+  _inverseTransformation(1,1) = 1.0f / scaleY;
+  _inverseTransformation(2,2) = 1.0f / scaleZ;
+}
+
+scale3d::scale3d(const scale3d& s) : transformation3d(s)
+{
+  // Do Nothing
+}