Textures Either Black or Gray-Blue. Problem.

Not sure what happened, most of the textures for any v_model are now either completely black or a greyish blue (HL2 shotgun, SMG, gravgun and a few others are unaltered.) I’ve deleted all of my addons, and garrysmod folder and reinstalled Gmod but I still have the same problem. Any ideas?
The same is happening to props and ragdolls as well. Only some parts of them though. CP Metro cop’s eyes, for example, are still blue but everything else is pitch black.