changelog
    
    
    - Sun, 17 Jun 2018 14:06:03 +0300
 
    - by Teemu Piippo <teemu@hecknology.net> [Sun, 17 Jun 2018 14:06:03 +0300] rev 1405
 
    - replaced overloads with a new 'xyz' function
 
    - Sun, 17 Jun 2018 13:57:00 +0300
 
    - by Teemu Piippo <teemu@hecknology.net> [Sun, 17 Jun 2018 13:57:00 +0300] rev 1404
 
    - replaced GLRotationMatrix with QMatrix4x4
 
    - Sun, 17 Jun 2018 13:53:33 +0300
 
    - by Teemu Piippo <teemu@hecknology.net> [Sun, 17 Jun 2018 13:53:33 +0300] rev 1403
 
    - replaced the Matrix class with QMatrix4x4