This may be a rather simple issue, but I haven't found the solution anywhere. I'm drawing simple objects such as solid spheres or cylinders. I have set the number of iso lines to 0 because I want to show only the solid object. However, I am still getting lines -- for instance, in the case of a sphere, an ugly half-circle appears from north to south.
I realised after some investigation that it's not an iso line but a seam line instead. How can I turn those off so that they don't show up?