Hello, i am having a problem with sweep2 and offsetsrf again. I am trying to model roadside railings but i couldnt make it smooth enouhg in rendered mode. It has some strange sharp points on the turns and after i offset it, it got more and more strange situation. It is not a big deal on the project but i am having these same issue frequently and want to know why this is happening. I change the mesh properties to the smooth and slower, also change my old pc and i am using RTX2060 now. Here is the pictures to illsutrate the problem and 3dm file.
strange surface.3dm (578.5 KB)