How about UV-mapping the 3D Axe into 2D space and create flat-textures instead?
GIMP is a Photoshop like, totally free and open-source tool to create textures:
– https://www.gimp.org/
Basic 3D uvmapping to 2D texture exercise:
– https://www.youtube.com/watch?v=f2-FfB9kRmE
