Hello dear Community, i tried to swap many models but they looked so wet,buggy and i know what is the problem. the problem is that i cant add in e.g. the head mesh the spec and normal maps. so i mean i dont know how to do that with a notepad. everything is fine just the textures look so buggy and can somebody please help me? i would be very thankful if somebody could say me how to add spec and normal map textures into the ydd (otd) mesh because i tried it more than 4 hours so i mean i tried to figure out a way, tried my ideas but none of them worked so i would give a small donation for help. greetings

UPDATE Thank you very much for sharing this method it was really hard for me but i think it was very much harder for
you to find a method like that. i'm really thankful for sharing this

if you have wet,buggy textures then you just have to put .otx to bump and spec samplers and then it sould work perfect