I made this rim using Rhino and now, I want to add some sculpting over it using Zbrush. My pipeline is:
1- Modeling in Rhino
2- Exporting OBJ file with maximum quality
3- Importing OBJ in Zbrush
4- Turing Dynamesh on with a proper number like 1024.
5- Adding custom details as sculpting.
6- Decimate the final model so as to reduce its size and ease the process of rendering.
7- Exporting and rendering using desired renderer.
My problem is that in the step 4, when I turn on Dynamesh, the end high-poly results in non-smooth surface. Even Clay Polish and some other solutions cannot smooth it. You can see it in the attached photos. The first image shows Dynamesh and the second shows Rhino exported mesh.
What's wrong with my approach?? How to solve it?