I'm using a Noise Texture (shader) with the Normal influence channel (in BI). And it doesn't show in render. Something does show when I check the Color influence, but not Normal influence. I think I tested every possible setting, with no success. See the attached images for my settings and the render result. The blue tip should show some bump. What am I doing wrong? Maybe it has to do with scale. The tip is just a few millimetres thick, but I also tested different scale values and nothing shows. The noise does show in the preview though.
I'm attaching another image showing the vertices.