The game defaulted to "Auto" Detection. Fix: In-game, go to Graphics > Advanced > "High Resolution Textures" = ON . If that option is greyed out, your DisplaySettings.xml is corrupt. Delete it and let the game regenerate.
An interesting side effect of the HRTP being difficult to find for non-Steam users is that many players have skipped it entirely and moved to the "Ultra Mod" scene. The game defaulted to "Auto" Detection
Gamers interested in downloading the High Resolution Texture Pack can follow these steps: go to Graphics >
, the high-resolution textures are included by default, but some players find they aren't fully utilized due to internal configuration settings. Steam Community Manual Fix: The game defaulted to "Auto" Detection