Photoshop for game environment artists.

Suraj_NM

I've been looking up a lot of tuts on creating game ready assets. I very rarely found anyone use PS that often(othen than adding text, logos, etc. to props). I saw many websites saying PS is very essential for environment artist, but I personally am lost about why is it so essential.
Help me out here, thanks a lot in advance.

CrackRockSteady

Although texturing has largely shifted to software like Substance Painter and Substance Designer I still use PS constantly for various other image editing purposes.  Regardless of what software you use for texturing you will very likely still need a basic understanding of how to use PS.