Hello again folks
I tried to use a sphere as reference geometry, but it said: "Failed to discretize reference geometry."
Why? And how can i make a sphere?
I think because a sphere contains two "singularities" at the poles, where control points are stacked. If you make a sphere more like a football, that is, made of multiple patches, it may work better.
Hi, like menno said, the problem is probably caused by the very thin triangles which Rhino creates around the poles. Please try the following: