Hello everybody, I'm a begginer in the WebGL coding and I'm having some some trouble trying to understand why I'm having different results when using Windows and Linux(Ubuntu and Fedora).

It's probably something wrong in the coding that gets interpreted differently in each OS, but I still have no idea what it may be...

(Checked on both OS using Firefox and Google Chrome and had the same results)

Windows Screenshot:

Linux Screenshot:

Thank you in advance!