I made a simple mesh and added bones, as I was practicing keyframing a bone structure. I applied a procedural wood material to the mesh, and applied smart UV projection. After rendering it out, I noticed that when the mesh bends, the material doesn't follow the deformation, choosing instead to remain "upright". Attaching below my .blend and a link to the rendered clip.
What am I doing wrong? Thanks in advance.
Rendered Animation
https://www.youtube.com/watch?v=psGZs0R25iQ
.Blend
https://drive.google.com/file/d/1fAdkggf7pFVdGza_jHum_jYY_oAy6pgb/view?usp=sharing