The problem with setting material for hats.

[Vlad]

Please tell me what went wrong.
That's my thing: http://steamcommunity.com/sharedfiles/filedetails/?id=575444747
The picture clearly shows a sharp shadow on the cap. All tried to set up the material in the blender, the shadow is exactly the same. How to make it smooth, as it should be in the fabric.
How would I set up the material - the shade does not change.

[Vlad]

I'm still waiting for an answer :)