--- a/src/algorithms/invert.cpp	Sun Jun 10 23:25:08 2018 +0300
+++ b/src/algorithms/invert.cpp	Sun Jun 17 13:53:33 2018 +0300
@@ -69,9 +69,9 @@
 /*
  * Returns a matrix that causes a flip on the given dimension.
  */
-Matrix flipmatrix(Axis dimension)
+QMatrix4x4 flipmatrix(Axis dimension)
 {
-	Matrix result = Matrix::identity;
+	QMatrix4x4 result;
 
 	switch (dimension)
 	{