I am trying to understand how normal maps work. I understand what they do but no matter how much i read about them I can not for the life of me find the answer I am looking for.
I am wondering this.
If I am working with terrain and use a rock texture I have a normal map for that rock texture but I dont like how it makes the rock look. Can I find and use another normal map or does it have to be the one for that texture. I have tried to test to see for my self but I seen no difference and thought it might just be my normal map.