>>713893023
well i made that last year so i forgot many of the steps, but this is the image i created. In paint.net i basically drew these runes by hand and by using variations of white-gray-black i made the edges and the insides and you have this option (which might be some extension you have to install) to turn the image into a normal map. But i'll link the tutorial i used cuz he explains it better, this guy has some of the best and to the point tutorials for modelling and shit https://www.youtube.com/watch?v=VqofmvQ_P9E